Exhibit 10.1

SECURITIES PURCHASE AGREEMENT

This SECURITIES PURCHASE AGREEMENT (the “Agreement”), dated as of December 14, 2017, by and between BIOLARGO, INC. , a Delaware corporation, with headquarters located at 14921 Chestnut St., Westminster, CA 92683 (the “Company”), and VISTA CAPITAL INVESTMENTS , LLC , a California limited liability company, with its address at 120 Birmingham Drive, Suite 230, Cardiff, CA 92007 (the “Buyer”).

WHEREAS :

A.     The Company and the Buyer are executing and delivering this Agreement in reliance upon the exemption from securities registration afforded by the rules and regulations as promulgated by the United States Securities and Exchange Commission (the “SEC”) under the Securities Act of 1933, as amended (the “1933 Act”);

B.     Buyer desires to purchase and the Company desires to issue and sell, upon the terms and conditi ons set forth in this Agreement, the 5% convertible note of the Company, in the form attached hereto as Exhibit A , in the aggregate principal amount of US$500,000.00 (together with any note(s) issued in replacement thereof or as a dividend thereon or otherwise with respect thereto in accordance with the terms thereof, the “Note”), convertible into shares of common stock of the Company (the “Common Stock”), upon the terms and subject to the limitations and conditions set forth in such Note; and

C.     The Buyer wishes to purchase, upon the terms and conditions stated in this Agreement, such principal amount of Note as is set forth immediately below its nam e on the signature pages hereto.

NOW THEREFORE , the Company and the Buyer severally (and not jointly) hereby agree as follows:

  1.      PURCHASE AND SALE OF NOTE .

a.      Purchase of Note . On the Closing Date (as defined below), the Company shall issue and sell to the Buyer and the Buyer agrees to purchase from the Company such principal amount of Note as is set forth immediately below the Buyer’s name on the signature pages hereto, subject to the express terms of the Note. In connection with the issuance of the Note, the Company shall issue to Buyer as a commitment fee, 250,000 shares of its common stock (the “Initial Commitment Shares”). If the Second Market Price (as defined below) as calculated on the date which is the earlier of (i) the date of effectiveness of a registration statement rendering the Initial Commitment Shares freely trading without restriction, and (ii) twenty trading days following the six-month anniversary of the Issuance Date of the Note (the “Make-Whole Date”) is lower than the closing price of the Common Stock on the date of this Agreement (the “First Market Price”), then the Company shall within two (2) business days of the Buyer’s request, issue additional shares of its Common Stock to Buyer, equal to the Aggregate Value (as defined below) divided by the Second Market Price, multiplied by 120%, minus the number of the Initial Commitment Shares (the result of which shall be referred to herein as the “Second Commitment Shares”). The Aggregate Value shall mean 250,000 multiplied by the closing price of the Company’s common stock on the date of this Agreement. The Second Market Price shall mean the closing price of the Company’s Common Stock on the Make-Whole Date. The Initial Commitment Shares and the Second Commitment Shares shall collectively, in the aggregate, be referred to herein as the “Commitment Shares”. The Second Commitment Shares, if required to be issued pursuant to this Agreement, shall be issued as provided in this Agreement, provided, however, that in no event shall the Buyer be entitled to receive shares of common stock in excess of the amount that would result in beneficial ownership by the Buyer and its affiliates of 4.99% of the outstanding shares of common stock at that time (pursuant to the specific calculations of beneficial ownership as provided in the Note). Accordingly, the Second Shares, if required to be issued pursuant to this Agreement, shall be issued in accordance with such beneficial ownership limitations, and in successive tranches if required to comply with such beneficial ownership limitations (each an “Additional Tranche”). The Company shall issue each Additional Tranche within two (2) business days of the request by Buyer.

b.      Form of Payment . On or around the Closing Date (as defined below), the Buyer shall pay the purchase price for Note, which is equal to $500,000.00 (the “Purchase Price”), by wire transfer of immediately available funds, in accordance with the Company’s written wiring instructions, against delivery of the Note, and the Company shall deliver such duly executed Note on behalf of the Company, to the Buyer.

c.      Closing Date . Subject to the satisfaction (or written waiver) of the conditions thereto set forth in Section 6 and Section 7 below, the date and time of the issuance and sale of the Note pursuant to this Agreement (the “Closing Date”) shall be 5:00 P.M., Eastern Standard Time on December 14, 2017, or such other mutually agreed upon time. The closing of the transactions contemplated by this Agreement (the “Closing”) shall occur on the Closing Date at such location as may be agreed to by the parties.

2.      REPRESENTATIONS AND WARRANTIES OF THE BUYER .     The Buyer represents and warrants to the Company that:

 a.      Investment Purpose . As of the date hereof, the Buyer is purchasing the Note and the shares of Common Stock issuable upon conversion of or otherwise pursuant to the Note (including, without limitation, such additional shares of Common Stock, if any, as are issuable (i) on account of interest on the Note or (ii) as a result of the events described in Sections 1.3 and 1.4(g) of the Note, such shares of Common Stock being collectively referred to herein as the “Conversion Shares” and, collectively with the Note, the “Securities”) for its own account and not with a present view towards the public sale or distribution thereof, except pursuant to sales registered or exempted from registration under the 1933 Act; provided , however , that by making the representations herein, the Buyer does not agree to hold any of the Securities for any minimum or other specific term and reserves the right to dispose of the Securities at any time in accordance with or pursuant to a registration statement or an exemption under the 1933 Act.

 b.      Reliance on Exemptions . The Buyer understands that the Securities are being offered and sold to it in reliance upon specific exemptions from the registration requirements of United States federal and state securities laws and that the Company is relying upon the truth and accuracy of, and the Buyer’s compliance with, the representations, warranties, agreements, acknowledgments and understandings of the Buyer set forth herein in order to determine the availability of such exemptions and the eligibility of the Buyer to acquire the Securities.

 c.      Information . The Buyer and its advisors, if any, have been, and for so long as the Note remain outstanding will continue to be, furnished with all materials relating to the business, finances and operations of the Company and materials relating to the offer and sale of the Securities which have been requested by the Buyer or its advisors. The Buyer and its advisors, if any, have been, and for so long as the Note remain outstanding will continue to be, afforded the opportunity to ask questions of the Company. Notwithstanding the foregoing, the Company has not disclosed to the Buyer any material nonpublic information and will not disclose such information unless such information is disclosed to the public prior to or promptly following such disclosure to the Buyer. Neither such inquiries nor any other due diligence investigation conducted by Buyer or any of its advisors or representatives shall modify, amend or affect Buyer’s right to rely on the Company’s representations and warranties contained in Section 3 below. The Buyer understands that its investment in the Securities involves a significant degree of risk. The Buyer is not aware of any facts that may constitute a breach of any of the Company's representations and warranties made herein.

d.      Governmental Review . The Buyer understands that no United States federal or state agency or any other government or governmental agency has passed upon or made any recommendation or endorsement of the Securities.

e.      Transfer or Re-sale . The Buyer understands that (i) the sale or re-sale of the Securities has not been and is not being registered under the 1933 Act or any applicable state securities laws, and the Securities may not be transferred unless (a) the Securities are sold pursuant to an effective registration statement under the 1933 Act, (b) the Buyer shall have delivered to the Company, at the cost of the Buyer, an opinion of counsel that shall be in form, substance and scope customary for opinions of counsel in comparable transactions to the effect that the Securities to be sold or transferred may be sold or transferred pursuant to an exemption from such registration, which opinion shall be accepted by the Company, (c) the Securities are sold or transferred to an “affiliate” (as defined in Rule 144 promulgated under the 1933 Act (or a successor rule) (“Rule 144”)) of the Buyer who agrees to sell or otherwise transfer the Securities only in accordance with this Section 2(f) and who is an Accredited Investor, (d) the Securities are sold pursuant to Rule 144, or (e) the Securities are sold pursuant to Regulation S under the 1933 Act (or a successor rule) (“Regulation S”), and the Buyer shall have delivered to the Company, at the cost of the Buyer, an opinion of counsel that shall be in form, substance and scope customary for opinions of counsel in corporate transactions, which opinion shall be accepted by the Company; (ii) any sale of such Securities made in reliance on Rule 144 may be made only in accordance with the terms of said Rule and further, if said Rule is not applicable, any re-sale of such Securities under circumstances in which the seller (or the person through whom the sale is made) may be deemed to be an underwriter (as that term is defined in the 1933 Act) may require compliance with some other exemption under the 1933 Act or the rules and regulations of the SEC thereunder; and (iii) neither the Company nor any other person is under any obligation to register such Securities under the 1933 Act or any state securities laws or to comply with the terms and conditions of any exemption thereunder (in each case). Notwithstanding the foregoing or anything else contained herein to the contrary, the Securities may be pledged as collateral in connection with a bona fide margin account or other lending arrangement.

f.      Legends . The Buyer understands that the Note and, until such time as the Conversion Shares have been registered under the 1933 Act may be sold pursuant to Rule 144 or Regulation S without any restriction as to the number of securities as of a particular date that can then be immediately sold, the Conversion Shares may bear a restrictive legend in substantially the following form (and a stop-transfer order may be placed against transfer of the certificates for such Securities):

“NEITHER THE ISSUANCE AND SALE OF THE SECURITIES REPRESENTED  BY THIS CERTIFICATE NOR THE SECURITIES INTO WHICH THESE SECURITIES ARE EXERCISABLE HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED (I) IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR (B) AN OPINION OF COUNSEL (WHICH COUNSEL SHALL BE SELECTED BY THE HOLDER), IN A GENERALLY ACCEPTABLE FORM, THAT REGISTRATION IS NOT REQUIRED UNDER SAID ACT OR (II) UNLESS SOLD PURSUANT TO RULE 144 OR RULE 144A UNDER SAID ACT. NOTWITHSTANDING THE FOREGOING, THE SECURITIES MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN OR FINANCING ARRANGEMENT SECURED BY THE SECURITIES.”

The legend set forth above shall be removed and the Company shall issue a certificate without such legend to the holder of any Security upon which it is stamped, if, unless otherwise required by applicable state securities laws, (a) such Security is registered for sale under an effective registration statement filed under the 1933 Act or otherwise may be sold pursuant to Rule 144 or Regulation S without any restriction as to the number of securities as of a particular date that can then be immediately sold, or (b) such holder provides the Company with an opinion of counsel, in form, substance and scope customary for opinions of counsel in comparable transactions, to the effect that a public sale or transfer of such Security may be made without registration under the 1933 Act, which opinion shall be accepted by the Company so that the sale or transfer is effected. The Buyer agrees to sell all Securities, including those represented by a certificate(s) from which the legend has been removed, in compliance with applicable prospectus delivery requirements, if any. In the event that the Company does not accept the opinion of counsel provided by the Buyer with respect to the transfer of Securities pursuant to an exemption from registration, such as Rule 144 or Regulation S, at the Deadline, it will be considered an Event of Default pursuant to Section 3.2 of the Note.

 g.      Authorization; Enforcement . This Agreement has been duly and validly authorized. This Agreement has been duly executed and delivered on behalf of the Buyer, and this Agreement constitutes a valid and binding agreement of the Buyer enforceable in accordance with its terms.

3.      REPRESENTATIONS AND WARRANTIES OF THE COMPANY . The Company represents and warrants to the Buyer that:

 a.      Organization and Qualification . The Company and each of its Subsidiaries (as defined below), if any, is a corporation duly organized, validly existing and in good standing under the laws of the jurisdiction in which it is incorporated, with full power and authority (corporate and other) to own, lease, use and operate its properties and to carry on its business as and where now owned, leased, used, operated and conducted. The Company and each of its Subsidiaries is duly qualified as a foreign corporation to do business and is in good standing in every jurisdiction in which its ownership or use of property or the nature of the business conducted by it makes such qualification necessary except where the failure to be so qualified or in good standing would not have a Material Adverse Effect. “Material Adverse Effect” means any material adverse effect on the business, operations, assets, financial condition or prospects of the Company or its Subsidiaries, if any, taken as a whole, or on the transactions contemplated hereby or by the agreements or instruments to be entered into in connection herewith. “Subsidiaries” means any corporation or other organization, whether incorporated or unincorporated, in which the Company owns, directly or indirectly, any equity or other ownership interest.

 b.      Authorization; Enforcement . (i) The Company has all requisite corporate power and authority to enter into and perform this Agreement, the Note and to consummate the transactions contemplated hereby and thereby and to issue the Securities, in accordance with the terms hereof and thereof, (ii) the execution and delivery of this Agreement, the Note by the Company and the consummation by it of the transactions contemplated hereby and thereby (including without limitation, the issuance of the Note and the issuance and reservation for issuance of the Conversion Shares issuable upon conversion or exercise thereof) have been duly authorized by the Company’s Board of Directors and no further consent or authorization of the Company, its Board of Directors, or its shareholders is required, (iii) this Agreement has been duly executed and delivered by the Company by its authorized representative, and such authorized representative is the true and official representative with authority to sign this Agreement and the other documents executed in connection herewith and bind the Company accordingly, and (iv) this Agreement constitutes, and upon execution and delivery by the Company of the Note, each of such instruments will constitute, a legal, valid and binding obligation of the Company enforceable against the Company in accordance with its terms.

c.      Capitalization . Except as disclosed in the SEC Documents, no shares are reserved for issuance pursuant to the Company’s stock option plans, no shares are reserved for issuance pursuant to securities (other than the Note) exercisable for, or convertible into or exchangeable for shares of Common Stock and sufficient shares are reserved for issuance upon conversion of the Note (as required by the Note and transfer agent share reserve letter). All of such outstanding shares of capital stock are, or upon issuance will be, duly authorized, validly issued, fully paid and non-assessable. No shares of capital stock of the Company are subject to preemptive rights or any other similar rights of the shareholders of the Company or any liens or encumbrances imposed through the actions or failure to act of the Company. Except as disclosed in the SEC Documents, as of the effective date of this Agreement, (i) there are no outstanding options, warrants, scrip, rights to subscribe for, puts, calls, rights of first refusal, agreements, understandings, claims or other commitments or rights of any character whatsoever relating to, or securities or rights convertible into or exchangeable for any shares of capital stock of the Company or any of its Subsidiaries, or arrangements by which the Company or any of its Subsidiaries is or may become bound to issue additional shares of capital stock of the Company or any of its Subsidiaries, (ii) there are no agreements or arrangements under which the Company or any of its Subsidiaries is obligated to register the sale of any of its or their securities under the 1933 Act and (iii) there are no anti-dilution or price adjustment provisions contained in any security issued by the Company (or in any agreement providing rights to security holders) that will be triggered by the issuance of the Note or the Conversion Shares. The Company has filed in its SEC Documents true and correct copies of the Company’s Certificate of Incorporation as in effect on the date hereof (“Certificate of Incorporation”), the Company’s By-laws, as in effect on the date hereof (the “By-laws”), and the terms of all securities convertible into or exercisable for Common Stock of the Company and the material rights of the holders thereof in respect thereto. The Company shall provide the Buyer with a written update of this representation signed by the Company’s Chief Executive on behalf of the Company as of the Closing Date.

d.      Issuance of Shares . The Conversion Shares are duly authorized and reserved for issuance and, upon conversion of the Note in accordance with its respective terms, will be validly issued, fully paid and non-assessable, and free from all taxes, liens, claims and encumbrances with respect to the issue thereof and shall not be subject to preemptive rights or other similar rights of shareholders of the Company and will not impose personal liability upon the holder thereof.

e.      Acknowledgment of Dilution . The Company understands and acknowledges the potentially dilutive effect to the Common Stock upon the issuance of the Conversion Shares upon conversion of the Note. The Company further acknowledges that its obligation to issue Conversion Shares upon conversion of the Note in accordance with this Agreement, the Note is absolute and unconditional regardless of the dilutive effect that such issuance may have on the ownership interests of other shareholders of the Company.

f.      No Conflicts . The execution, delivery and performance of this Agreement, the Note by the Company and the consummation by the Company of the transactions contemplated hereby and thereby (including, without limitation, the issuance and reservation for issuance of the Conversion Shares) will not (i) conflict with or result in a violation of any provision of the Certificate of Incorporation or By-laws, or (ii) violate or conflict with, or result in a breach of any provision of, or constitute a default (or an event which with notice or lapse of time or both could become a default) under, or give to others any rights of termination, amendment, acceleration or cancellation of, any agreement, indenture, patent, patent license or instrument to which the Company or any of its Subsidiaries is a party, or (iii) result in a violation of any law, rule, regulation, order, judgment or decree (including federal and state securities laws and regulations and regulations of any self-regulatory organizations to which the Company or its securities are subject) applicable to the Company or any of its Subsidiaries or by which any property or asset of the Company or any of its Subsidiaries is bound or affected (except for such conflicts, defaults, terminations, amendments, accelerations, cancellations and violations as would not, individually or in the aggregate, have a Material Adverse Effect). Neither the Company nor any of its Subsidiaries is in violation of its Certificate of Incorporation, By-laws or other organizational documents and neither the Company nor any of its Subsidiaries is in default (and no event has occurred which with notice or lapse of time or both could put the Company or any of its Subsidiaries in default) under, and neither the Company nor any of its Subsidiaries has taken any action or failed to take any action that would give to others any rights of termination, amendment, acceleration or cancellation of, any agreement, indenture or instrument to which the Company or any of its Subsidiaries is a party or by which any property or assets of the Company or any of its Subsidiaries is bound or affected, except for possible defaults as would not, individually or in the aggregate, have a Material Adverse Effect. The businesses of the Company and its Subsidiaries, if any, are not being conducted, and shall not be conducted so long as the Buyer owns any of the Securities, in violation of any law, ordinance or regulation of any governmental entity. Except as specifically contemplated by this Agreement and as required under the 1933 Act and any applicable state securities laws, the Company is not required to obtain any consent, authorization or order of, or make any filing or registration with, any court, governmental agency, regulatory agency, self-regulatory organization or stock market or any third party in order for it to execute, deliver or perform any of its obligations under this Agreement, the Note in accordance with the terms hereof or thereof or to issue and sell the Note in accordance with the terms hereof and to issue the Conversion Shares upon conversion of the Note. All consents, authorizations, orders, filings and registrations which the Company is required to obtain pursuant to the preceding sentence have been obtained or effected on or prior to the date hereof. The Company is not in violation of the listing requirements of the Over-the- Counter Bulletin Board (the “OTCBB”), the OTCQB or any similar quotation system, and does not reasonably anticipate that the Common Stock will be delisted by the OTCBB, the OTCQB or any similar quotation system, in the foreseeable future. The Company and its Subsidiaries are unaware of any facts or circumstances which might give rise to any of the foregoing.

g.      SEC Documents; Financial Statements . The Company has timely filed all reports, schedules, forms, statements and other documents required to be filed by it with the SEC pursuant to the reporting requirements of the Securities Exchange Act of 1934, as amended (the “1934 Act”) (all of the foregoing filed prior to the date hereof and all exhibits included therein and financial statements and schedules thereto and documents (other than exhibits to such documents) incorporated by reference therein, being hereinafter referred to herein as the “SEC Documents”). The Company has delivered to the Buyer true and complete copies of the SEC Documents, except for such exhibits and incorporated documents. As of their respective dates, the SEC Documents complied in all material respects with the requirements of the 1934 Act and the rules and regulations of the SEC promulgated thereunder applicable to the SEC Documents, and none of the SEC Documents, at the time they were filed with the SEC, contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading. None of the statements made in any such SEC Documents is, or has been, required to be amended or updated under applicable law (except for such statements as have been amended or updated in subsequent filings prior the date hereof). As of their respective dates, the financial statements of the Company included in the SEC Documents complied as to form in all material respects with applicable accounting requirements and the published rules and regulations of the SEC with respect thereto. Such financial statements have been prepared in accordance with United States generally accepted accounting principles, consistently applied, during the periods involved and fairly present in all material respects the consolidated financial position of the Company and its consolidated Subsidiaries as of the dates thereof and the consolidated results of their operations and cash flows for the periods then ended (subject, in the case of unaudited statements, to normal year-end audit adjustments). Except as set forth in the financial statements of the Company included in the SEC Documents, the Company has no liabilities, contingent or otherwise, other than (i) liabilities incurred in the ordinary course of business, and (ii) obligations under contracts and commitments incurred in the ordinary course of business and not required under generally accepted accounting principles to be reflected in such financial statements, which, individually or in the aggregate, are not material to the financial condition or operating results of the Company. The Company is subject to the reporting requirements of the 1934 Act. For the avoidance of doubt, filing of the documents required in this Section 3(g) via the SEC’s Electronic Data Gathering, Analysis, and Retrieval system (“EDGAR”) shall satisfy all delivery requirements of this Section 3(g).

h.      Absence of Certain Changes . There have been no material adverse change and no material adverse development in the assets, liabilities, business, properties, operations, financial condition, results of operations, prospects or 1934 Act reporting status of the Company or any of its Subsidiaries.

i.      Absence of Litigation . There is no action, suit, claim, proceeding, inquiry or investigation before or by any court, public board, government agency, self-regulatory organization or body pending or, to the knowledge of the Company or any of its Subsidiaries, threatened against or affecting the Company or any of its Subsidiaries, or their officers or directors in their capacity as such, that could have a Material Adverse Effect. The Company and its Subsidiaries are unaware of any facts or circumstances which might give rise to any of the foregoing.

j.      Patents, Copyrights, etc . The Company and each of its Subsidiaries owns or possesses the requisite licenses or rights to use all patents, patent applications, patent rights, inventions, know-how, trade secrets, trademarks, trademark applications, service marks, service names, trade names and copyrights (“Intellectual Property”) necessary to enable it to conduct its business as now operated (and, as presently contemplated to be operated in the future); Except as disclosed in the SEC Documents, there is no claim or action by any person pertaining to, or proceeding pending, or to the Company’s knowledge threatened, which challenges the right of the Company or of a Subsidiary with respect to any Intellectual Property necessary to enable it to conduct its business as now operated (and, as presently contemplated to be operated in the future); to the best of the Company’s knowledge, the Company’s or its Subsidiaries’ current and intended products, services and processes do not infringe on any Intellectual Property or other rights held by any person; and the Company is unaware of any facts or circumstances which might give rise to any of the foregoing. The Company and each of its Subsidiaries have taken reasonable security measures to protect the secrecy, confidentiality and value of their Intellectual Property.

k.      No Materially Adverse Contracts, Etc . Neither the Company nor any of its Subsidiaries is subject to any charter, corporate or other legal restriction, or any judgment, decree, order, rule or regulation which in the judgment of the Company’s officers has or is expected in the future to have a Material Adverse Effect. Neither the Company nor any of its Subsidiaries is a party to any contract or agreement which in the judgment of the Company’s officers has or is expected to have a Material Adverse Effect.

l.      Tax Status . The Company and each of its Subsidiaries has made or filed all federal, state and foreign income and all other tax returns, reports and declarations required by any jurisdiction to which it is subject (unless and only to the extent that the Company and each of its Subsidiaries has set aside on its books provisions reasonably adequate for the payment of all unpaid and unreported taxes) and has paid all taxes and other governmental assessments and charges that are material in amount, shown or determined to be due on such returns, reports and declarations, except those being contested in good faith and has set aside on its books provisions reasonably adequate for the payment of all taxes for periods subsequent to the periods to which such returns, reports or declarations apply. Other than as disclosed in the SEC Documents, there are no unpaid taxes in any material amount claimed to be due by the taxing authority of any jurisdiction, and the officers of the Company know of no basis for any such claim. The Company has not executed a waiver with respect to the statute of limitations relating to the assessment or collection of any foreign, federal, state or local tax. None of the Company’s tax returns is presently being audited by any taxing authority.

m.      Certain Transactions . Except for arm’s length transactions pursuant to which the Company or any of its Subsidiaries makes payments in the ordinary course of business upon terms no less favorable than the Company or any of its Subsidiaries could obtain from third parties, and as disclosed in the SEC Documents, none of the officers, directors, or employees of the Company is presently a party to any transaction with the Company or any of its Subsidiaries (other than for services as employees, officers and directors), including any contract, agreement or other arrangement providing for the furnishing of services to or by, providing for rental of real or personal property to or from, or otherwise requiring payments to or from any officer, director or such employee or, to the knowledge of the Company, any corporation, partnership, trust or other entity in which any officer, director, or any such employee has a substantial interest or is an officer, director, trustee or partner.

n.      Disclosure . All information relating to or concerning the Company or any of its Subsidiaries set forth in this Agreement and provided to the Buyer pursuant to Section 2(d) hereof and otherwise in connection with the transactions contemplated hereby is true and correct in all material respects and the Company has not omitted to state any material fact necessary in order to make the statements made herein or therein, in light of the circumstances under which they were made, not misleading. No event or circumstance has occurred or exists with respect to the Company or any of its Subsidiaries or its or their business, properties, prospects, operations or financial conditions, which, under applicable law, rule or regulation, requires public disclosure or announcement by the Company but which has not been so publicly announced or disclosed (assuming for this purpose that the Company’s reports filed under the 1934 Act are being incorporated into an effective registration statement filed by the Company under the 1933 Act).

o.      Acknowledgment Regarding Buyer ’ Purchase of Securities . The Company acknowledges and agrees that the Buyer is acting solely in the capacity of arm’s length purchasers with respect to this Agreement and the transactions contemplated hereby. The Company further acknowledges that the Buyer is not acting as a financial advisor or fiduciary of the Company (or in any similar capacity) with respect to this Agreement and the transactions contemplated hereby and any statement made by the Buyer or any of its respective representatives or agents in connection with this Agreement and the transactions contemplated hereby is not advice or a recommendation and is merely incidental to the Buyer’ purchase of the Securities. The Company further represents to the Buyer that the Company’s decision to enter into this Agreement has been based solely on the independent evaluation of the Company and its representatives.

p.      No Integrated Offering . Neither the Company, nor any of its affiliates, nor any person acting on its or their behalf, has directly or indirectly made any offers or sales in any security or solicited any offers to buy any security under circumstances that would require registration under the 1933 Act of the issuance of the Securities to the Buyer. The issuance of the Securities to the Buyer will not be integrated with any other issuance of the Company’s securities (past, current or future) for purposes of any shareholder approval provisions applicable to the Company or its securities.

q.      No Brokers . The Company has taken no action which would give rise to any claim by any person for brokerage commissions, transaction fees or similar payments relating to this Agreement or the transactions contemplated hereby.

r.      Permits; Compliance . The Company and each of its Subsidiaries is in possession of all franchises, grants, authorizations, licenses, permits, easements, variances, exemptions, consents, certificates, approvals and orders necessary to own, lease and operate its properties and to carry on its business as it is now being conducted (collectively, the “Company Permits”), and there is no action pending or, to the knowledge of the Company, threatened regarding suspension or cancellation of any of the Company Permits. Neither the Company nor any of its Subsidiaries is in conflict with, or in default or violation of, any of the Company Permits, except for any such conflicts, defaults or violations which, individually or in the aggregate, would not reasonably be expected to have a Material Adverse Effect. Neither the Company nor any of its Subsidiaries has received any notification with respect to possible conflicts, defaults or violations of applicable laws, except for notices relating to possible conflicts, defaults or violations, which conflicts, defaults or violations would not have a Material Adverse Effect.

(i)     There are, to the Company ’s knowledge, with respect to the Company or any of its Subsidiaries or any predecessor of the Company, no past or present violations of Environmental Laws (as defined below), releases of any material into the environment, actions, activities, circumstances, conditions, events, incidents, or contractual obligations which may give rise to any common law environmental liability or any liability under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 or similar federal, state, local or foreign laws and neither the Company nor any of its Subsidiaries has received any notice with respect to any of the foregoing, nor is any action pending or, to the Company’s knowledge, threatened in connection with any of the foregoing. The term “Environmental Laws” means all federal, state, local or foreign laws relating to pollution or protection of human health or the environment (including, without limitation, ambient air, surface water, groundwater, land surface or subsurface strata), including, without limitation, laws relating to emissions, discharges, releases or threatened releases of chemicals, pollutants contaminants, or toxic or hazardous substances or wastes (collectively, “Hazardous Materials”) into the environment, or otherwise relating to the manufacture, processing, distribution, use, treatment, storage, disposal, transport or handling of Hazardous Materials, as well as all authorizations, codes, decrees, demands or demand letters, injunctions, judgments, licenses, notices or notice letters, orders, permits, plans or regulations issued, entered, promulgated or approved thereunder.

(ii)     Other than those that are or were stored, used or disposed of in compliance with applicable law, no Hazardous Materials are contained on or about any real property currently owned, leased or used by the Company or any of its Subsidiaries, and no Hazardous Materials were released on or about any real property previously owned, leased or used by the Company or any of its Subsidiaries during the period the property was owned, leased or used by the Company or any of its Subsidiaries, except in the normal course of the Company ’s or any of its Subsidiaries’ business.

(iii)     There are no underground storage tanks on or under any real property owned, leased or used by the Company or any of its Subsidiaries that are not in compliance with applicable law.

t.      Title to Property . Except as disclosed in the SEC Documents the Company and its Subsidiaries have good and marketable title in fee simple to all real property and good and marketable title to all personal property owned by them which is material to the business of the Company and its Subsidiaries, in each case free and clear of all liens, encumbrances and defects or such as would not have a Material Adverse Effect. Any real property and facilities held under lease by the Company and its Subsidiaries are held by them under valid, subsisting and enforceable leases with such exceptions as would not have a Material Adverse Effect.

u.      Internal Accounting Controls . Except as disclosed in the SEC Documents the Company and each of its Subsidiaries maintain a system of internal accounting controls sufficient, in the judgment of the Company’s board of directors, to provide reasonable assurance that (i) transactions are executed in accordance with management’s general or specific authorizations, (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles and to maintain asset accountability, (iii) access to assets is permitted only in accordance with management’s general or specific authorization and (iv) the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences.

v.      Foreign Corrupt Practices . Neither the Company, nor any of its Subsidiaries, nor any director, officer, agent, employee or other person acting on behalf of the Company or any Subsidiary has, in the course of his actions for, or on behalf of, the Company, used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expenses relating to political activity; made any direct or indirect unlawful payment to any foreign or domestic government official or employee from corporate funds; violated or is in violation of any provision of the U.S. Foreign Corrupt Practices Act of 1977, as amended, or made any bribe, rebate, payoff, influence payment, kickback or other unlawful payment to any foreign or domestic government official or employee.

w.      Solvency . The Company has no information that would lead it to reasonably conclude that the Company would not, after giving effect to the transaction contemplated by this Agreement, have the ability to, nor does it intend to take any action that would impair its ability to, pay its debts from time to time incurred in connection therewith as such debts mature.

x.      No Investment Company . The Company is not, and upon the issuance and sale of the Securities as contemplated by this Agreement will not be an “investment company” required to be registered under the Investment Company Act of 1940 (an “Investment Company”). The Company is not controlled by an Investment Company.

y.      Insurance . Upon written request the Company will provide to the Buyer true and correct copies of all policies relating to directors’ and officers’ liability coverage, errors and omissions coverage, and commercial general liability coverage, if any.

z.      Breach of Representations and Warranties by the Company . If the Company breaches any of the representations or warranties set forth in this Section 3, and in addition to any other remedies available to the Buyer pursuant to this Agreement, it will be considered an Event of default under Section 3.4 of the Note.

aa.     For purpose of clarity, the Company is not in breach of the foregoing representations and warranties to the extent the foregoing representations and warranties are in conflict with the Company ’s disclosures in the SEC Documents.

a.      Best Efforts . The parties shall use their commercially reasonable best efforts to satisfy timely each of the conditions described in Section 6 and 7 of this Agreement.

b.      Use of Proceeds . The Company shall use the proceeds from the sale of the Note for working capital and other general corporate purposes and shall not, directly or indirectly, use such proceeds for any loan to or investment in any other corporation, partnership, enterprise or other person (except in connection with its currently existing direct or indirect Subsidiaries).

c.      Financial Information . The Company agrees to send or make available the following reports to the Buyer until the Buyer transfers, assigns, or sells all of the Securities:

(i) within ten (10) days after the filing with the SEC, a copy of its Annual Report on Form 10-K its Quarterly Reports on Form 10-Q and any Current Reports on Form 8-K; (ii) within one (1) day after release, copies of all press releases issued by the Company or any of its Subsidiaries; and (iii) contemporaneously with the making available or giving to the shareholders of the Company, copies of any notices or other information the Company makes available or gives to such shareholders. For the avoidance of doubt, filing the documents required in (i) above via EDGAR or releasing any documents set forth in (ii) above via a recognized wire service shall satisfy the delivery requirements of this Section 4(f).

d.      Listing . The Company shall promptly secure the listing of the Conversion Shares upon each national securities exchange or automated quotation system, if any, upon which shares of Common Stock are then listed (subject to official notice of issuance) and, so long as the Buyer owns any of the Securities, shall maintain, so long as any other shares of Common Stock shall be so listed, such listing of all Conversion Shares from time to time issuable upon conversion of the Note. The Company will obtain and, so long as the Buyer owns any of the Securities, maintain the listing and trading of its Common Stock on the OTCBB, OTCQB, OTC Pink or any equivalent replacement exchange, the Nasdaq National Market (“Nasdaq”), the Nasdaq SmallCap Market (“Nasdaq SmallCap”), the New York Stock Exchange (“NYSE”), or the NYSE MKT and will comply in all respects with the Company’s reporting, filing and other obligations under the bylaws or rules of the Financial Industry Regulatory Authority (“FINRA”) and such exchanges, as applicable. The Company shall promptly provide to the Buyer copies of any material notices it receives from the OTCBB, OTCQB and any other exchanges or quotation systems on which the Common Stock is then listed regarding the continued eligibility of the Common Stock for listing on such exchanges and quotation systems.

e.      Corporate Existence . So long as the Buyer beneficially owns any Note, the Company shall maintain its corporate existence and shall not sell all or substantially all of the Company’s assets, except in the event of a merger or consolidation or sale of all or substantially all of the Company’s assets, where the surviving or successor entity in such transaction (i) assumes the Company’s obligations hereunder and under the agreements and instruments entered into in connection herewith and (ii) is a publicly traded corporation whose Common Stock is listed for trading on the OTCBB, OTCQB, OTC Pink, Nasdaq, NasdaqSmallCap, NYSE or AMEX.

f.      No Integration . The Company shall not make any offers or sales of any security (other than the Securities) under circumstances that would require registration of the Securities being offered or sold hereunder under the 1933 Act or cause the offering of the Securities to be integrated with any other offering of securities by the Company for the purpose of any stockholder approval provision applicable to the Company or its securities.

g.      Failure to Comply with the 1934 Act . So long as the Buyer beneficially owns the Note, the Company shall comply with the reporting requirements of the 1934 Act; and the Company shall continue to be subject to the reporting requirements of the 1934 Act.

h.      Trading Activities . Neither the Buyer nor its affiliates has an open short position (or other hedging or similar transactions) in the common stock of the Company and the Buyer agree that it shall not, and that it will cause its affiliates not to, engage in any short sales of or hedging transactions with respect to the common stock of the Company.

i.      Breach of Covenants. If the Company breaches any of the covenants set forth in this Section 4, and in addition to any other remedies available to the Buyer pursuant to this Agreement, it will be considered an event of default under Section 3.3 of the Note.

5.      Transfer Agent Instructions . Prior to registration of the Conversion Shares under the 1933 Act or the date on which the Conversion Shares may be sold pursuant to Rule 144 without any restriction as to the number of Securities as of a particular date that can then be immediately sold, all such certificates shall bear the restrictive legend specified in Section 2(g) of this Agreement. The Company warrants that: (i) no stop transfer instructions to give effect to Section 2(f) hereof (in the case of the Conversion Shares, prior to registration of the Conversion Shares under the 1933 Act or the date on which the Conversion Shares may be sold pursuant to Rule 144 without any restriction as to the number of Securities as of a particular date that can then be immediately sold), will be given by the Company to its transfer agent and that the Securities shall otherwise be freely transferable on the books and records of the Company as and to the extent provided in this Agreement and the Note; (ii) it will not direct its transfer agent not to transfer or delay, impair, and/or hinder its transfer agent in transferring (or issuing) (electronically or in certificated form) any certificate for Conversion Shares to be issued to the Buyer upon conversion of or otherwise pursuant to the Note as and when required by the Note and this Agreement; and (iii) it will not fail to remove (or directs its transfer agent not to remove or impairs, delays, and/or hinders its transfer agent from removing) any restrictive legend (or to withdraw any stop transfer instructions in respect thereof) on any certificate for any Conversion Shares issued to the Buyer upon conversion of or otherwise pursuant to the Note as and when required by the Note and this Agreement. Nothing in this Section shall affect in any way the Buyer’s obligations and agreement set forth in Section 2(g) hereof to comply with all applicable prospectus delivery requirements, if any, upon re-sale of the Securities. If the Buyer provides the Company, at the cost of the Buyer, with (i) an opinion of counsel in form, substance and scope customary for opinions in comparable transactions, to the effect that a public sale or transfer of such Securities may be made without registration under the 1933 Act and such sale or transfer is effected or (ii) the Buyer provides reasonable assurances that the Securities can be sold pursuant to Rule 144, the Company shall permit the transfer, and, in the case of the Conversion Shares, promptly instruct its transfer agent to issue one or more certificates, free from restrictive legend, in such name and in such denominations as specified by the Buyer. The Company acknowledges that a breach by it of its obligations hereunder will cause irreparable harm to the Buyer, by vitiating the intent and purpose of the transactions contemplated hereby. Accordingly, the Company acknowledges that the remedy at law for a breach of its obligations under this Section may be inadequate and agrees, in the event of a breach or threatened breach by the Company of the provisions of this Section, that the Buyer shall be entitled, in addition to all other available remedies, to an injunction restraining any breach and requiring immediate transfer, without the necessity of showing economic loss and without any bond or other security being required.

6.      CONDITIONS PRECEDENT TO THE COMPANY’S OBLIGATIONS TO SELL . The obligation of the Company hereunder to issue and sell the Note to the Buyer at the Closing is subject to the satisfaction, at or before the Closing Date of each of the following conditions thereto, provided that these conditions are for the Company’s sole benefit and may be waived by the Company at any time in its sole discretion:

  a.     The Buyer shall have executed this Agreement and delivered the same to the Company.

  b.     The Buyer shall have delivered the Purchase Price in accordance with S ection 1(b) above.

  c.     The representations and warranties of the Buyer shall be true and correct in all material respects as of the date when made and as of the Closing Date as though made at that time (except for representations and warranties that speak as of a specific date), and the Buyer shall have performed, satisfied and complied in all material respects with the covenants, agreements and conditions required by this Agreement to be performed, satisfied or complied with by the Buyer at or prior to the Closing Date.

d.     No litigation, statute, rule, regulation, executive order, decree, ruling or injunction shall have been enacted, entered, promulgated or endorsed by or in any court or governmental authority of competent jurisdiction or any self-regulatory organization having authority over the matters contemplated hereby which prohibits the consummation of any of the transactions contemplated by this Agreement.

7.      CONDITIONS PRECEDENT TO THE BUYER’S OBLIGATION TO PURCHASE . The obligation of the Buyer hereunder to purchase the Note at the Closing is subject to the satisfaction, at or before the Closing Date of each of the following conditions, provided that these conditions are for the Buyer’s sole benefit and may be waived by the Buyer at any time in its sole discretion:

a.     The Company shall have executed this Agreement and delivered the same to the Buyer.

b.     The Company shall have delivered to the Buyer duly executed Note (in such denominations as the Buyer shall request) in accordance with Section 1(b) above.

c.     The representations and warranties of the Company shall be true and correct in all material respects as of the date when made and as of the Closing Date as though made at such time (except for representations and warranties that speak as of a specific date) and the Company shall have performed, satisfied and complied in all material respects with the covenants, agreements and conditions required by this Agreement to be performed, satisfied or complied with by the Company at or prior to the Closing Date. The Buyer shall have received a certificate or certificates, executed by the chief executive officer of the Company, dated as of the Closing Date, to the foregoing effect and as to such other matters as may be reasonably requested by the Buyer including, but not limited to certificates with respect to the Company ’s Certificate of Incorporation, By-laws and Board of Directors’ resolutions relating to the transactions contemplated hereby.

d.     No litigation, statute, rule, regulation, executive order, decree, ruling or injunction shall have been enacted, entered, promulgated or endorsed by or in any court or governmental authority of competent jurisdiction or any self-regulatory organization having authority over the matters contemplated hereby which prohibits the consummation of any of the transactions contemplated by this Agreement.

e.     No event shall have occurred which could reasonably be expected to have a Material Adverse Effect on the Company including but not limited to a change in the 1934 Act reporting status of the Company or the failure of the Company to be timely in its 1934 Act reporting obligations.

f.     The Conversion Shares shall have been authorized for quotation on the OTCBB, OTCQB or any similar quotation system and trading in the Common Stock on the OTCBB, OTCQB or any similar quotation system shall not have been suspended by the SEC or the OTCBB, OTCQB or any similar quotation system.

g.     The Buyer shall have received an officer ’s certificate described in Section 3(c) above, dated as of the Closing Date.

a.      Governing Law . This Agreement shall be governed by and construed in accordance with the laws of the State of Nevada without regard to principles of conflicts of laws. Any action brought by either party against the other concerning the transactions contemplated by this Agreement shall be brought only in the state courts or federal courts located in San Diego County, California. The parties to this Agreement hereby irrevocably waive any objection to jurisdiction and venue of any action instituted hereunder and shall not assert any defense based on lack of jurisdiction or venue or based upon forum non conveniens . The Company and Buyer waive trial by jury. The prevailing party shall be entitled to recover from the other party its reasonable attorney's fees and costs. In the event that any provision of this Agreement or any other agreement delivered in connection herewith is invalid or unenforceable under any applicable statute or rule of law, then such provision shall be deemed inoperative to the extent that it may conflict therewith and shall be deemed modified to conform with such statute or rule of law. Any such provision which may prove invalid or unenforceable under any law shall not affect the validity or enforceability of any other provision of any agreement. Each party hereby irrevocably waives personal service of process and consents to process being served in any suit, action or proceeding in connection with this Agreement or any other Transaction Document by mailing a copy thereof via registered or certified mail or overnight delivery (with evidence of delivery) to such party at the address in effect for notices to it under this Agreement and agrees that such service shall constitute good and sufficient service of process and notice thereof. Nothing contained herein shall be deemed to limit in any way any right to serve process in any other manner permitted by law.

b.      Counterparts; Signatures by Facsimile . This Agreement may be executed in one or more counterparts, each of which shall be deemed an original but all of which shall constitute one and the same agreement and shall become effective when counterparts have been signed by each party and delivered to the other party. Counterparts may be delivered via facsimile, electronic mail (including pdf or any electronic signature complying with the U.S. federal ESIGN Act of 2000, e.g., www.docusign.com, www.echosign.adobe.com, etc.) or other transmission method and any counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and effective for all purposes.

c.      Headings . The headings of this Agreement are for convenience of reference only and shall not form part of, or affect the interpretation of, this Agreement.

d.      Severability . In the event that any provision of this Agreement is invalid or unenforceable under any applicable statute or rule of law, then such provision shall be deemed inoperative to the extent that it may conflict therewith and shall be deemed modified to conform with such statute or rule of law. Any provision hereof which may prove invalid or unenforceable under any law shall not affect the validity or enforceability of any other provision hereof.

e.      Entire Agreement; Amendments . This Agreement and the instruments referenced herein contain the entire understanding of the parties with respect to the matters covered herein and therein and, except as specifically set forth herein or therein, neither the Company nor the Buyer makes any representation, warranty, covenant or undertaking with respect to such matters. No provision of this Agreement may be waived or amended other than by an instrument in writing signed by the majority in interest of the Buyer.

f.      Notices . All notices, demands, requests, consents, approvals, and other communications required or permitted hereunder shall be in writing and, unless otherwise specified herein, shall be (i) personally served, (ii) deposited in the mail, registered or certified, return receipt requested, postage prepaid, (iii) delivered by reputable air courier service with charges prepaid, or (iv) transmitted by hand delivery, telegram, email, or facsimile, addressed as set forth below or to such other address as such party shall have specified most recently by written notice. Any notice or other communication required or permitted to be given hereunder shall be deemed effective (a) upon hand delivery or delivery by facsimile, with accurate confirmation generated by the transmitting facsimile machine, at the address or number designated below (if delivered on a business day during normal business hours where such notice is to be received), or the first business day following such delivery (if delivered other than on a business day during normal business hours where such notice is to be received) or (b) on the second business day following the date of mailing by express courier service, fully prepaid, addressed to such address, or upon actual receipt of such mailing, whichever shall first occur. The addresses for such communications shall be:

If to the Company, to:

BIOLARGO, INC.

14921 Chestnut St.

Westminster, CA 92683

e-mail:  

Deninis.Calvert@BioLargo.com

With a copy to:

Browning Law Group

3200 Park Center Dr., Ste. 500

Costa Mesa, CA 92626

Email: john@browninglawgroup.com

If to the Holder, to:

VISTA CAPITAL INVESTMENTS , LLC

120 Birmingham Drive, Suite 230

Cardiff, CA 92007

e-mail: dclark@vci.us.com

Each party shall provide notice to the other party of any change in address.

g.      Successors and Assigns . This Agreement shall be binding upon and inure to the benefit of the parties and their successors and assigns. Neither the Company nor the Buyer shall assign this Agreement or any rights or obligations hereunder without the prior written consent of the other. Notwithstanding the foregoing, subject to Section 2(f), the Buyer may assign its rights hereunder to any person that purchases Securities in a private transaction from the Buyer or to any of its “affiliates,” as that term is defined under the 1934 Act, without the consent of the Company.

h.      Third Party Beneficiaries . This Agreement is intended for the benefit of the parties hereto and their respective permitted successors and assigns, and is not for the benefit of, nor may any provision hereof be enforced by, any other person.

i.      Survival . The representations and warranties of the Company and the agreements and covenants set forth in this Agreement shall survive the closing hereunder. The Company agrees to indemnify and hold harmless the Buyer and all their officers, directors, employees and agents for loss or damage arising as a result of or related to any breach by the Company of any of its representations, warranties and covenants set forth in this Agreement or any of its covenants and obligations under this Agreement, including advancement of expenses as they are incurred.

j.      Further Assurances . Each party shall do and perform, or cause to be done and performed, all such further acts and things, and shall execute and deliver all such other agreements, certificates, instruments and documents, as the other party may reasonably request in order to carry out the intent and accomplish the purposes of this Agreement and the consummation of the transactions contemplated hereby.

k.      No Strict Construction . The language used in this Agreement will be deemed to be the language chosen by the parties to express their mutual intent, and no rules of strict construction will be applied against any party.

(i)     The Company acknowledges that a breach by it of its obligations hereunder will cause irreparable harm to the Buyer by vitiating the intent and purpose of the transaction contemplated hereby. Accordingly, the Company acknowledges that the remedy at law for a breach of its obligations under this Agreement will be inadequate and agrees, in the event of a breach or threatened breach by the Company of the provisions of this Agreement, that the Buyer shall be entitled, in addition to all other available remedies at law or in equity, and in addition to the penalties assessable herein, to an injunction or injunctions restraining, preventing or curing any breach of this Agreement and to enforce specifically the terms and provisions hereof, without the necessity of showing economic loss and without any bond or other security being required.

(ii)     In addition to any other remedy provided herein or in any document executed in connection herewith, Borrower shall pay Holder for all costs, fees and expenses in connection with any litigation, contest, dispute, suit or any other action to enforce any rights of Holder against Borrower in connection herewith, including, but not limited to, costs and expenses and attorneys' fees, and costs and time charges of counsel to Holder. In furtherance of the foregoing, Borrower shall pay an amount equal to $25,000 to the Holder immediately upon the Holder ’s filing of any litigation, contest, dispute, suit or any other action to enforce any rights of Holder against Borrower in connection herewith, which such amount shall be used to pay Holder’s attorneys’ fees, cost and expenses. Additional amounts shall be paid by Borrower to Holder immediately upon Borrower’s receipt of invoices from Holder’s attorney evidencing the charges and fees assessed in connection with any such litigation, contest, dispute, suit or any other action to enforce any rights of Holder and, upon receiving such invoices which indicate outstanding fees in excess of $20,000 at any time, Borrower shall promptly pay an additional $25,000 to Holder to be used in satisfaction of additional attorneys’ fees, and costs and time charges of counsel to Holder. Such payments shall continue indefinitely until said litigation, contest, dispute, suit or any other action to enforce any rights of Holder against Borrower is settled to the satisfaction of the Holder. Further, Borrower agrees to save and hold Holder harmless from and against any and all liabilities with respect to or resulting from any delay in paying or omission to pay such costs and expenses.

m.      Publicity . The Company, and the Buyer shall have the right to review a reasonable period of time before issuance of any press releases, SEC, OTCQB (or other applicable trading market), or FINRA filings, or any other public statements with respect to the transactions contemplated hereby; provided , however , that the Company shall be entitled, without the prior approval of the Buyer, to make any press release or SEC, OTCQB (or other applicable trading market) or FINRA filings with respect to such transactions as is required by applicable law and regulations (although the Buyer shall be consulted by the Company in connection with any such press release prior to its release and shall be provided with a copy thereof).

[ - signature page follows - ]

IN WITNESS WHEREOF, the undersigned Buyer and the Company have caused this Agreement to be duly executed as of the date first above written.

BIOLARGO, INC.

/S/DENNIS CALVERT

By:                                                                                   

Name: Dennis Calvert

Title: Chief Executive Officer

VISTA CAPITAL INVESTMENTS , LLC

/S/DAVID CLARK

By:                                                                                  

Name: David Clark

Title: Principal

*The $ 500,000.00 purchase price shall be paid within a reasonable amount of time after the full execution of the Note and all related transaction documentation.

EXHIBIT A

(see attached)

18

Exhibit 10.2

REGISTRATION RIGHTS AGREEMENT

REGISTRATION RIGHTS AGREEMENT (this " Agreement "), dated as of December 14, 2017, by and between BIOLARGO, INC. , a Delaware corporation (the “ Company ”), and VISTA CAPITAL INVESTMENTS , LLC , a California limited liability company (together with it permitted assigns, the “ Buyer ”). Capitalized terms used herein and not otherwise defined herein shall have the respective meanings set forth in the equity purchase agreement by and between the parties hereto, dated as of the date hereof (as amended, restated, supplemented or otherwise modified from time to time, the “ Purchase Agreement ”).

WHEREAS:

The Company has agreed, upon the terms and subject to the conditions of the Purchase Agreement, to sell to the Buyer that certain convertible promissory note in the principal amount of $500,000.00 (the “ Note ”) and the Commitment Shares (as defined in the Purchase Agreement) (the “Commitment Shares”), and to induce the Buyer to enter into the Purchase Agreement, the Company has agreed to provide certain registration rights under the Securities Act of 1933, as amended, and the rules and regulations thereunder, or any similar successor statute (collectively, the “ Securities Act ”), and applicable state securities laws.

NOW, THEREFORE, in consideration of the promises and the mutual covenants contained herein and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Company and the Buyer hereby agree as follows:

As used in this Agreement, the following terms shall have the following meanings:

b.      “ Person ” means any individual or entity including but not limited to any corporation, a limited liability company, an association, a partnership, an organization, a business, an individual, a governmental or political subdivision thereof or a governmental agency.

c.      “ Register ,” “ registered ,” and “ registration ” refer to a registration effected by preparing and filing one or more registration statements of the Company in compliance with the Securities Act and/or pursuant to Rule 415 under the Securities Act or any successor rule providing for offering securities on a continuous basis (“ Rule 415 ”), and the declaration or ordering of effectiveness of such registration statement(s) by the United States Securities and Exchange Commission (the “ SEC ”).

d.      “ Registrable Securities ” means all of the shares of Common Stock into which the Note is convertible into and the Commitment Shares, which have been, or which may, from time to time be issued, including without limitation all of the shares of common stock which have been issued or will be issued to the Investor under the Purchase Agreement (without regard to any limitation or restriction on purchases), shares of common stock issued to the Investor as a result of any stock split, stock dividend, recapitalization, exchange or similar event or otherwise, without regard to any limitation on purchases under the Purchase Agreement.

e.      “ Registration Statement ” means one or more registration statements of the Company covering only the sale of the Registrable Securities.

b.       Rule 424 Prospectus . The Company shall, as required by applicable securities regulations, from time to time file with the SEC, pursuant to Rule 424 promulgated under the Securities Act, the prospectus and prospectus supplements, if any, to be used in connection with sales of the Registrable Securities under the Registration Statement. The Investor and its counsel shall have a reasonable opportunity to review and comment upon such prospectus prior to its filing with the SEC, and the Company shall give due consideration to all such comments. The Investor shall use its reasonable best efforts to comment upon such prospectus within one (1) Business Day from the date the Investor receives the final pre-filing version of such prospectus.

c.       Sufficient Number of Shares Registered . In the event the number of shares available under the Registration Statement is insufficient to cover all of the Registrable Securities, the Company shall amend the Registration Statement or file a new Registration Statement (a “ New Registration Statement ”), so as to cover all of such Registrable Securities (subject to the limitations set forth in Section 2(a)) as soon as practicable, but in any event not later than ten (10) Business Days after the necessity therefor arises, subject to any limits that may be imposed by the SEC pursuant to Rule 415 under the Securities Act. The Company shall use it reasonable best efforts to cause such amendment and/or New Registration Statement to become effective as soon as practicable following the filing thereof. In the event that any of the Registrable Securities are not included in the Registration Statement, or have not been included in any New Registration Statement and the Company files any other registration statement under the Securities Act (other than on Form S-4, Form S-8, or with respect to other employee related plans or rights offerings) (“ Other Registration Statement ”) then the Company shall include such remaining Registrable Securities in such Other Registration Statement.   

d.     Offering . If the staff of the SEC (the “ Staff ”) or the SEC seeks to characterize any offering pursuant to a Registration Statement filed pursuant to this Agreement as constituting an offering of securities that does not permit such Registration Statement to become effective and be used for resales by the Investor under Rule 415 at then-prevailing market prices (and not fixed prices), or if after the filing of the initial Registration Statement with the SEC pursuant to Section 2(a), the Company is otherwise required by the Staff or the SEC to reduce the number of Registrable Securities included in such initial Registration Statement, then the Company shall reduce the number of Registrable Securities to be included in such initial Registration Statement (with the prior consent, which shall not be unreasonably withheld, of the Investor and its legal counsel as to the specific Registrable Securities to be removed therefrom) until such time as the Staff and the SEC shall so permit such Registration Statement to become effective and be used as aforesaid. In the event of any reduction in Registrable Securities pursuant to this paragraph, the Company shall file one or more New Registration Statements in accordance with Section 2(c) until such time as all Registrable Securities have been included in Registration Statements that have been declared effective and the prospectus contained therein is available for use by the Investor. Notwithstanding any provision herein or in the Purchase Agreement to the contrary, the Company’s obligations to register Registrable Securities (and any related conditions to the Investor’s obligations) shall be qualified as necessary to comport with any requirement of the SEC or the Staff as addressed in this Section 2(d).

With respect to the Registration Statement and whenever any Registrable Securities are to be registered pursuant to Section 2 including on any New Registration Statement, the Company shall use its reasonable best efforts to effect the registration of the Registrable Securities in accordance with the intended method of disposition thereof and, pursuant thereto, the Company shall have the following obligations:

b.      The Company shall permit the Investor to review and comment upon the Registration Statement or any New Registration Statement and all amendments and supplements thereto at least two (2) Business Days prior to their filing with the SEC, and not file any document in a form to which Investor reasonably objects. The Investor shall use its reasonable best efforts to comment upon the Registration Statement or any New Registration Statement and any amendments or supplements thereto within two (2) Business Days from the date the Investor receives the final version thereof. The Company shall furnish to the Investor, without charge any correspondence from the SEC or the staff of the SEC to the Company or its representatives relating to the Registration Statement or any New Registration Statement.

c.      Upon request of the Investor, the Company shall furnish to the Investor, (i) promptly after the same is prepared and filed with the SEC, at least one copy of such registration statement and any amendment(s) thereto, including financial statements and schedules, all documents incorporated therein by reference and all exhibits, (ii) upon the effectiveness of any registration statement, a copy of the prospectus included in such registration statement and all amendments and supplements thereto (or such other number of copies as the Investor may reasonably request) and (iii) such other documents, including copies of any preliminary or final prospectus, as the Investor may reasonably request from time to time in order to facilitate the disposition of the Registrable Securities owned by the Investor. For the avoidance of doubt, any filing available to the Investor via the SEC’s live EDGAR system shall be deemed “furnished to the Investor” hereunder.

d.      The Company shall use reasonable best efforts to (i) register and qualify the Registrable Securities covered by a registration statement under such other securities or “blue sky” laws of such jurisdictions in the United States as the Investor reasonably requests, (ii) prepare and file in those jurisdictions, such amendments (including post-effective amendments) and supplements to such registrations and qualifications as may be necessary to maintain the effectiveness thereof during the Registration Period, (iii) take such other actions as may be necessary to maintain such registrations and qualifications in effect at all times during the Registration Period, and (iv) take all other actions reasonably necessary or advisable to qualify the Registrable Securities for sale in such jurisdictions; provided, however, that the Company shall not be required in connection therewith or as a condition thereto to (x) qualify to do business in any jurisdiction where it would not otherwise be required to qualify but for this Section 3(d), (y) subject itself to general taxation in any such jurisdiction, or (z) file a general consent to service of process in any such jurisdiction. The Company shall promptly notify the Investor who holds Registrable Securities of the receipt by the Company of any notification with respect to the suspension of the registration or qualification of any of the Registrable Securities for sale under the securities or “blue sky” laws of any jurisdiction in the United States or its receipt of actual notice of the initiation or threatening of any proceeding for such purpose.

e.      As promptly as practicable after becoming aware of such event or facts, the Company shall notify the Investor in writing of the happening of any event or existence of such facts as a result of which the prospectus included in any registration statement, as then in effect, includes an untrue statement of a material fact or omits to state a material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading, and promptly prepare a supplement or amendment to such registration statement to correct such untrue statement or omission, and deliver a copy of such supplement or amendment to the Investor (or such other number of copies as the Investor may reasonably request). The Company shall also promptly notify the Investor in writing (i) when a prospectus or any prospectus supplement or post-effective amendment has been filed, and when a registration statement or any post-effective amendment has become effective (notification of such effectiveness shall be delivered to the Investor by email or facsimile on the same day of such effectiveness and by overnight mail), (ii) of any request by the SEC for amendments or supplements to any registration statement or related prospectus or related information, and (iii) of the Company’s reasonable determination that a post-effective amendment to a registration statement would be appropriate.

f.      The Company shall use its reasonable best efforts to prevent the issuance of any stop order or other suspension of effectiveness of any registration statement, or the suspension of the qualification of any Registrable Securities for sale in any jurisdiction and, if such an order or suspension is issued, to obtain the withdrawal of such order or suspension at the earliest possible moment and to notify the Investor of the issuance of such order and the resolution thereof or its receipt of actual notice of the initiation or threat of any proceeding for such purpose.

g.      The Company shall (i) cause all the Registrable Securities to be listed on each securities exchange on which securities of the same class or series issued by the Company are then listed, if any, if the listing of such Registrable Securities is then permitted under the rules of such exchange, or (ii) secure designation and quotation of all the Registrable Securities on the Principal Market. The Company shall pay all fees and expenses in connection with satisfying its obligation under this Section.

h.      The Company shall cooperate with the Investor to facilitate the timely preparation and delivery of certificates (not bearing any restrictive legend) representing the Registrable Securities to be offered pursuant to any registration statement and enable such certificates to be in such denominations or amounts as the Investor may reasonably request and registered in such names as the Investor may request.

j.      If reasonably requested by the Investor, the Company shall (i) immediately incorporate in a prospectus supplement or post-effective amendment such information as the Investor believes should be included therein relating to the sale and distribution of Registrable Securities, including, without limitation, information with respect to the number of Registrable Securities being sold, the purchase price being paid therefor and any other terms of the offering of the Registrable Securities; (ii) make all required filings of such prospectus supplement or post-effective amendment as soon as practicable upon notification of the matters to be incorporated in such prospectus supplement or post-effective amendment; and (iii) supplement or make amendments to any registration statement.

k.      The Company shall use its reasonable best efforts to cause the Registrable Securities covered by any registration statement to be registered with or approved by such other governmental agencies or authorities as may be necessary to consummate the disposition of such Registrable Securities.

l.      Within one (1) Business Day after any registration statement which includes the Registrable Securities is ordered effective by the SEC, the Company shall deliver, and shall cause legal counsel for the Company to deliver, to the transfer agent for such Registrable Securities (with copies to the Investor) confirmation that such registration statement has been declared effective by the SEC in the form attached hereto as Exhibit A . Thereafter, if requested by the Buyer at any time, the Company shall require its counsel to deliver to the Buyer a written confirmation whether or not the effectiveness of such registration statement has lapsed at any time for any reason (including, without limitation, the issuance of a stop order) and whether or not the registration statement is current and available to the Buyer for sale of all of the Registrable Securities.

m.      The Company shall take all other reasonable actions necessary to expedite and facilitate disposition by the Investor of Registrable Securities pursuant to any registration statement.

b.      The Investor agrees to cooperate with the Company as reasonably requested by the Company in connection with the preparation and filing of any registration statement hereunder.

c.      The Investor agrees that, upon receipt of any notice from the Company of the happening of any event or existence of facts of the kind described in Section 3(f) or the first sentence of 3I, the Investor will immediately discontinue disposition of Registrable Securities pursuant to any registration statement(s) covering such Registrable Securities until the Investor’s receipt of the copies of the supplemented or amended prospectus contemplated by Section 3(f) or the first sentence of 3I. Notwithstanding anything to the contrary, the Company shall cause its transfer agent to promptly deliver shares of Common Stock without any restrictive legend in accordance with the terms of the Purchase Agreement in connection with any sale of Registrable Securities with respect to which an Investor has entered into a contract for sale prior to the Investor’s receipt of a notice from the Company of the happening of any event of the kind described in Section 3(f) or the first sentence of Section 3I and for which the Investor has not yet settled.

All reasonable expenses, other than sales or brokerage commissions, incurred in connection with registrations, filings or qualifications pursuant to Sections 2 and 3, including, without limitation, all registration, listing and qualifications fees, printers and accounting fees, and fees and disbursements of counsel for the Company, shall be paid by the Company.

b .     Promptly after receipt by an Indemnified Person or Indemnified Party under this Section 6 of notice of the commencement of any action or proceeding (including any governmental action or proceeding) involving a Claim, such Indemnified Person or Indemnified Party shall, if a Claim in respect thereof is to be made against any indemnifying party under this Section 6, deliver to the indemnifying party a written notice of the commencement thereof, and the indemnifying party shall have the right to participate in, and, to the extent the indemnifying party so desires, jointly with any other indemnifying party similarly noticed, to assume control of the defense thereof with counsel mutually satisfactory to the indemnifying party and the Indemnified Person or the Indemnified Party, as the case may be; provided, however, that an Indemnified Person or Indemnified Party shall have the right to retain its own counsel with the fees and expenses to be paid by the indemnifying party, if, in the reasonable opinion of counsel retained by the indemnifying party, the representation by such counsel of the Indemnified Person or Indemnified Party and the indemnifying party would be inappropriate due to actual or potential differing interests between such Indemnified Person or Indemnified Party and any other party represented by such counsel in such proceeding. The Indemnified Party or Indemnified Person shall cooperate fully with the indemnifying party in connection with any negotiation or defense of any such action or claim by the indemnifying party and shall furnish to the indemnifying party all information reasonably available to the Indemnified Party or Indemnified Person which relates to such action or claim. The indemnifying party shall keep the Indemnified Party or Indemnified Person fully apprised at all times as to the status of the defense or any settlement negotiations with respect thereto. No indemnifying party shall be liable for any settlement of any action, claim or proceeding effectuated without its written consent, provided, however, that the indemnifying party shall not unreasonably withhold, delay or condition its consent. No indemnifying party shall, without the consent of the Indemnified Party or Indemnified Person, consent to entry of any judgment or enter into any settlement or other compromise which does not include as an unconditional term thereof the giving by the claimant or plaintiff to such Indemnified Party or Indemnified Person of a release from all liability in respect to such claim or litigation. Following indemnification as provided for hereunder, the indemnifying party shall be subrogated to all rights of the Indemnified Party or Indemnified Person with respect to all third parties, firms or corporations relating to the matter for which indemnification has been made. The failure to deliver written notice to the indemnifying party within a reasonable time of the commencement of any such action shall not relieve such indemnifying party of any liability to the Indemnified Person or Indemnified Party under this Section 6, except to the extent that the indemnifying party is prejudiced in its ability to defend such action.

c .     The indemnification required by this Section 6 shall be made by periodic payments of the amount thereof during the course of the investigation or defense, as and when bills are received or Indemnified Damages are incurred.

d .     The indemnity agreements contained herein shall be in addition to (i) any cause of action or similar right of the Indemnified Party or Indemnified Person against the indemnifying party or others, and (ii) any liabilities the indemnifying party may be subject to pursuant to the law.

To the extent any indemnification by an indemnifying party is prohibited or limited by law, the indemnifying party agrees to make the maximum contribution with respect to any amounts for which it would otherwise be liable under Section 6 to the fullest extent permitted by law; provided, however, that: (i) no seller of Registrable Securities guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any seller of Registrable Securities who was not guilty of fraudulent misrepresentation; and (ii) contribution by any seller of Registrable Securities shall be limited in amount to the net amount of proceeds received by such seller from the sale of such Registrable Securities.

With a view to making available to the Investor the benefits of Rule 144 promulgated under the Securities Act or any other similar rule or regulation of the SEC that may at any time permit the Investor to sell securities of the Company to the public without registration ( “ Rule 144 ”), the Company agrees, at the Company’s sole expense, to:

b.      file with the SEC in a timely manner all reports and other documents required of the Company under the Securities Act and the Exchange Act so long as the Company remains subject to such requirements and the filing of such reports and other documents is required for the applicable provisions of Rule 144;

c.      furnish to the Investor so long as the Investor owns Registrable Securities, promptly upon request, (i) a written statement by the Company that it has complied with the reporting and or disclosure provisions of Rule 144, the Securities Act and the Exchange Act, (ii) a copy of the most recent annual or quarterly report of the Company and such other reports and documents so filed by the Company, and (iii) such other information as may be reasonably requested to permit the Investor to sell such securities pursuant to Rule 144 without registration; and

d.     take such additional action as is requested by the Investor to enable the Investor to sell the Registrable Securities pursuant to Rule 144, including, without limitation, delivering all such legal opinions, consents, certificates, resolutions and instructions to the Company’s Transfer Agent as may be requested from time to time by the Investor and otherwise fully cooperate with Investor and Investor’s broker to effect such sale of securities pursuant to Rule 144.

The Company agrees that damages may be an inadequate remedy for any breach of the terms and provisions of this Section 8 and that Investor shall, whether or not it is pursuing any remedies at law, be entitled to equitable relief in the form of a preliminary or permanent injunctions, without having to post any bond or other security, upon any breach or threatened breach of any such terms or provisions.

The Company shall not assign this Agreement or any rights or obligations hereunder without the prior written consent of the Investor.

No provision of this Agreement may be amended or waived by the parties from and after the date that is one Business Day immediately preceding the initial filing of the Registration Statement with the SEC. Subject to the immediately preceding sentence, no provision of this Agreement may be (i) amended other than by a written instrument signed by both parties hereto or (ii) waived other than in a written instrument signed by the party against whom enforcement of such waiver is sought . Failure of any party to exercise any right or remedy under this Agreement or otherwise, or delay by a party in exercising such right or remedy, shall not operate as a waiver thereof.

b.      Any notices, consents, waivers or other communications required or permitted to be given under the terms of this Agreement must be in writing and will be deemed to have been delivered: (i) upon receipt, when delivered personally; (ii) upon receipt, when sent by facsimile or email; or (iii) one (1) Business Day after deposit with a nationally recognized overnight delivery service, in each case properly addressed to the party to receive the same. The addresses for such communications shall be:

If to the Company, to:

BIOLARGO, INC.

14921 Chestnut St.

Westminster, CA 92683

e-mail: Dennis.calvert@biolargo.com

With a copy to:

Browning Law Group

3200 Park Center Dr., Ste. 500

Costa Mesa, CA 92626

Email: john@browninglawgroup.com

If to the Investor:

VISTA CAPITAL INVESTMENTS , LLC

120 Birmingham Drive, Suite 230

Cardiff, CA 92007

e-mail: dclark@vci.us.com

or at such other address and/or facsimile number and/or to the attention of such other person as the recipient party has specified by written notice given to each other party three (3) Business Days prior to the effectiveness of such change. Written confirmation of receipt (A) given by the recipient of such notice, consent, waiver or other communication, (B) mechanically or electronically generated by the sender ’s facsimile machine or email account containing the time, date, recipient facsimile number or email address, as applicable, and an image of the first page of such transmission or (C) provided by a nationally recognized overnight delivery service, shall be rebuttable evidence of personal service, receipt by facsimile or receipt from a nationally recognized overnight delivery service in accordance with clause (i), (ii) or (iii) above, respectively.

c.      The corporate laws of the State of Nevada shall govern all issues concerning this Agreement. All other questions concerning the construction, validity, enforcement and interpretation of this Agreement shall be governed by the internal laws of the State of Nevada, without giving effect to any choice of law or conflict of law provision or rule (whether of the State of Nevada or any other jurisdictions) that would cause the application of the laws of any jurisdictions other than the State of Nevada. Each party hereby irrevocably submits to the exclusive jurisdiction of the state and federal courts sitting the San Diego County, California, for the adjudication of any dispute hereunder or in connection herewith or with any transaction contemplated hereby or discussed herein, and hereby irrevocably waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any such court, that such suit, action or proceeding is brought in an inconvenient forum or that the venue of such suit, action or proceeding is improper. Each party hereby irrevocably waives personal service of process and consents to process being served in any such suit, action or proceeding by mailing a copy thereof to such party at the address for such notices to it under this Agreement and agrees that such service shall constitute good and sufficient service of process and notice thereof. Nothing contained herein shall be deemed to limit in any way any right to serve process in any manner permitted by law. If any provision of this Agreement shall be invalid or unenforceable in any jurisdiction, such invalidity or unenforceability shall not affect the validity or enforceability of the remainder of this Agreement in that jurisdiction or the validity or enforceability of any provision of this Agreement in any other jurisdiction. EACH PARTY HEREBY IRREVOCABLY WAIVES ANY RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST, A JURY TRIAL FOR THE ADJUDICATION OF ANY DISPUTE HEREUNDER OR IN CONNECTION HEREWITH OR ARISING OUT OF THIS AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY.

d.      This Agreement and the Purchase Agreement constitute the entire agreement among the parties hereto with respect to the subject matter hereof and thereof. There are no restrictions, promises, warranties or undertakings, other than those set forth or referred to herein and therein. This Agreement and the Purchase Agreement supersede all prior agreements and understandings among the parties hereto with respect to the subject matter hereof and thereof.

e.      Subject to the requirements of Section 9, this Agreement shall inure to the benefit of and be binding upon the successors and permitted assigns of each of the parties hereto.

f.      The headings in this Agreement are for convenience of reference only and shall not limit or otherwise affect the meaning hereof.

g.      This Agreement may be executed in identical counterparts, each of which shall be deemed an original but all of which shall constitute one and the same agreement. This Agreement, once executed by a party, may be delivered to the other party hereto by facsimile transmission or by e-mail in a “.pdf” format data file of a copy of this Agreement bearing the signature of the party so delivering this Agreement.

h.      Each party shall do and perform, or cause to be done and performed, all such further acts and things, and shall execute and deliver all such other agreements, certificates, instruments and documents, as the other party may reasonably request in order to carry out the intent and accomplish the purposes of this Agreement and the consummation of the transactions contemplated hereby.

j.      This Agreement is intended for the benefit of the parties hereto and their respective successors and permitted assigns, and is not for the benefit of, nor may any provision hereof be enforced by, any other Person.

* * * * * *

IN WITNESS WHEREOF, the parties have caused this Registration Rights Agreement to be duly executed as of day and year first above written.

THE COMPANY:

BIOLARGO, INC.

/S/ DENNIS P CALVERT

INVESTOR:

VISTA CAPITAL INVESTMENTS , LLC

/S/DAVID CLARK

Exhibit 10.3

NEITHER THIS NOTE NOR THE SECURITIES INTO WHICH THIS NOTE IS CONVERTIBLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE. THESE SECURITIES HAVE BEEN SOLD IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ SECURITIES ACT ”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS.

BioLargo, Inc.

Convertible Note

FOR VALUE RECEIVED, BioLargo, Inc. , a Delaware corporation with a par value of $0.00067 per common share (“Par Value”) (the “ Company ”), hereby promises to pay to the order of Vista Capital Investments , LLC or registered assigns (the “ Holder ”) the amount set out above as the Original Principal Amount (as reduced pursuant to the terms hereof pursuant to redemption, conversion or otherwise, the “ Principal ”) when due, whether upon the Maturity Date (as defined below), acceleration, redemption or otherwise (in each case in accordance with the terms hereof) and to pay interest (“ Interest ”) on any outstanding Principal at the applicable Interest Rate from the date set out above as the Issuance Date (the “ Issuance Date ”) until the same becomes due and payable, upon the Maturity Date or acceleration, conversion, redemption or otherwise (in each case in accordance with the terms hereof).

The Original Principal Amount is $ 500,000 (five hundred thousand) plus accrued and unpaid interest and any other fees. The Holder shall pay $500,000 of Consideration upon closing of this Note. For purposes hereof, the term “Outstanding Balance” means the Original Principal Amount, as reduced or increased, as the case may be, pursuant to the terms hereof for conversion, breach hereof or otherwise, plus any accrued but unpaid interest, collection and enforcements costs, and any other fees, penalties, damages or charges incurred under this Note.

  (a)      Payment of Principal . The “ Maturity Date ” shall be September 14, 2018, as may be extended at the option of the Holder in the event that, and for so long as, an Event of Default (as defined below) shall not have occurred and be continuing on the Maturity Date (as may be extended pursuant to this Section 1) or any event shall not have occurred and be continuing on the Maturity Date (as may be extended pursuant to this Section 1) that with the passage of time and the failure to cure would result in an Event of Default.

  (b)      Interest . An annual interest rate of five percent (5%) (“ Interest Rate ”) shall accrue. Interest hereunder shall be paid on the Maturity Date (or sooner as provided herein) to the Holder or its assignee in whose name this Note is registered on the records of the Company regarding registration and transfers of Notes in cash or converted into Common Stock at the Conversion Price at the election of the Holder.

  (c)      Security . This Note shall not be secured by any collateral or any assets pledged to the Holder

(a)     An “ Event of Default ”, wherever used herein, means any one of the following events (whatever the reason and whether it shall be voluntary or involuntary or effected by operation of law or pursuant to any judgment, decree or order of any court, or any order, rule or regulation of any administrative or governmental body):

(i)      T he Company’s failure to pay to the Holder any amount of Principal, Interest, or other amounts when and as due under this Note (including, without limitation, the Company’s failure to pay any redemption payments or amounts hereunder);

(ii)      A Conversion Failure as defined in section 3(b)(ii)

(iii)     The Company or any subsidiary of the Company shall commence, or there shall be commenced against the Company or any subsidiary of the Company under any applicable bankruptcy or insolvency laws as now or hereafter in effect or any successor thereto, or the Company or any subsidiary of the Company commences any other proceeding under any reorganization, arrangement, adjustment of debt, relief of debtors, dissolution, insolvency or liquidation or similar law of any jurisdiction whether now or hereafter in effect relating to the Company or any subsidiary of the Company or there is commenced against the Company or any subsidiary of the Company any such bankruptcy, insolvency or other proceeding which remains undismissed for a period of 61 days; or the Company or any subsidiary of the Company is adjudicated insolvent or bankrupt; or any order of relief or other order approving any such case or proceeding is entered; or the Company or any subsidiary of the Company suffers any appointment of any custodian, private or court appointed receiver or the like for it or any substantial part of its property which continues undischarged or unstayed for a period of sixty one (61) days; or the Company or any subsidiary of the Company makes a general assignment for the benefit of creditors; or the Company or any subsidiary of the Company shall fail to pay, or shall state that it is unable to pay, or shall be unable to pay, its debts generally as they become due; or the Company or any subsidiary of the Company shall call a meeting of its creditors with a view to arranging a composition, adjustment or restructuring of its debts; or the Company or any subsidiary of the Company shall by any act or failure to act expressly indicate its consent to, approval of or acquiescence in any of the foregoing; or any corporate or other action is taken by the Company or any subsidiary of the Company for the purpose of effecting any of the foregoing;

(iv)     The Company or any subsidiary of the Company shall default in any of its obligations under any other Note or any mortgage, credit agreement or other facility, indenture agreement, factoring agreement or other instrument under which there may be issued, or by which there may be secured or evidenced any indebtedness for borrowed money or money due under any long term leasing or factoring arrangement of the Company or any subsidiary of the Company in an amount exceeding $100,000, whether such indebtedness now exists or shall hereafter be created; and

(v)      T he Common Stock is suspended or delisted for trading on the Over the Counter OTCQB Venture Marketplace (the “ Primary Market ”).

(vi)     The Company loses its ability to deliver shares via “DWAC/FAST” electronic transfer.

(vii)      The Company loses its status as “DTC Eligible.”

(viii)     The Company shall become late or delinquent in its filing requirements as a fully-reporting issuer registered with the Securities & Exchange Commission.

(ix)       The Company shall fail to comply with Section 3(d)(i) of this Note.

(x)        T he Company shall fail to meet all requirements to satisfy the availability of Rule 144 to the Investor or its assigns including but not limited to timely fulfillment of its filing requirements as a fully-reporting issuer registered with the SEC, requirements for XBRL filings, and requirements for disclosure of financial statements on its website.

(xi)       The Company fails to timely comply with the terms of the RRA (as defined herein).

(b)      Upon the occurrence of any Event of Default (without the need for any party to give any notice or take any other action), the Outstanding Balance shall immediately and automatically increase to 130% of the Outstanding Balance immediately prior to the occurrence of the Event of Default (the “Default Sum”). Upon the occurrence of any Event of Default, the Note shall become immediately due and payable and the Borrower shall pay to the Holder, in full satisfaction of its obligations hereunder, an amount equal to the Outstanding Balance, all without demand, presentment or notice, all of which hereby are expressly waived, together with all costs, including, without limitation, legal fees and expenses, of collection, and the Holder shall be entitled to exercise all other rights and remedies available at law or in equity.

(3)         CONVERSION OF NOTE .     This Note shall be convertible into shares of the Company’s Common Stock, on the terms and conditions set forth in this Section 3.

(a)      Conversion Right . Subject to the provisions of Section 3(c), at any time or times on or after the Issuance Date, the Holder shall be entitled to convert any portion of the outstanding and unpaid Conversion Amount (as defined below) into fully paid and nonassessable shares of Common Stock in accordance with Section 3(b), at the Conversion Price (as defined below). The number of shares of Common Stock issuable upon conversion of any Conversion Amount pursuant to this Section 3(a) shall be equal to the quotient of dividing the Conversion Amount by the Conversion Price. The Company shall not issue any fraction of a share of Common Stock upon any conversion. If the issuance would result in the issuance of a fraction of a share of Common Stock, the Company shall round such fraction of a share of Common Stock up to the nearest whole share. The Company shall pay any and all transfer agent fees, legal fees, costs and any other fees or costs that may be incurred or charged in connection with the issuance of shares of the Company’s Common Stock to the Holder arising out of or relating to the conversion of this Note.

(i)     “ Conversion Amount ” means the portion of the Original Principal Amount and Interest to be converted, plus any penalties, redeemed or otherwise with respect to which this determination is being made.

(ii)     “ Conversion Price ” shall equal $0.394, subject to adjustment as provided in this Note.

(b)          Mechanics of Conversion .

(i)      Optional and Mandatory Conversion . To convert any Conversion Amount into shares of Common Stock on any date (a “ Conversion Date ”), the Holder shall (A) transmit by email, facsimile (or otherwise deliver), for receipt on or prior to 11:59 p.m., New York, NY Time, on such date, a copy of an executed notice of conversion in the form attached hereto as Exhibit A (the “ Conversion Notice ”) to the Company. On or before the third Business Day following the date of receipt of a Conversion Notice (the “ Share Delivery Date ”), the Company shall (A) if legends are not required to be placed on certificates of Common Stock pursuant to the then existing provisions of Rule 144 of the Securities Act of 1933 (“Rule 144”) and provided that the Transfer Agent is participating in the Depository Trust Company’s (“ DTC ”) Fast Automated Securities Transfer Program, credit such aggregate number of shares of Common Stock to which the Holder shall be entitled to the Holder’s or its designee’s balance account with DTC through its Deposit Withdrawal Agent Commission system or (B) if the Transfer Agent is not participating in the DTC Fast Automated Securities Transfer Program, issue and deliver to the address as specified in the Conversion Notice, a certificate, registered in the name of the Holder or its designee, for the number of shares of Common Stock to which the Holder shall be entitled which certificates shall not bear any restrictive legends unless required pursuant the Rule 144. If this Note is physically surrendered for conversion and the outstanding Principal of this Note is greater than the Principal portion of the Conversion Amount being converted, then the Company shall, upon request of the Holder, as soon as practicable and in no event later than three (3) Business Days after receipt of this Note and at its own expense, issue and deliver to the holder a new Note representing the outstanding Principal not converted. The Person or Persons entitled to receive the shares of Common Stock issuable upon a conversion of this Note shall be treated for all purposes as the record holder or holders of such shares of Common Stock upon the transmission of a Conversion Notice. Furthermore, so long as an Event of Default has not occurred under the Note, the Company at its option may require the Holder to convert all or any portion of the principal and interest due under the Note into shares of the Company’s common stock (each a “Mandatory Conversion”), so long as the following requirements are met: (i) the Company’s common stock has traded at a price per share of $0.75 or above for the ten (10) Trading Days immediately preceding the date of the Mandatory Conversion, (ii) a registration statement filed by the Company, for the resale of the Registrable Securities (as defined in the RRA), has been declared effective by the Securities and Exchange Commission and can be relied upon for the Holder’s deposit of such free trading shares into Holder’s brokerage account as of the respective date of the Mandatory Conversion, (iii) the share amount for the Mandatory Conversion must comply with the beneficial ownership limitations contained in this Note, and (iv) the share amount for the Mandatory Conversion must not exceed 150% of the Average Daily Trading Volume (as defined herein). The Average Daily Trading Volume shall mean the average trading volume of the Company’s common stock in the ten (10) Trading Days immediately preceding the respective date of the Mandatory Conversion. The Company may exercise its right to require conversion of all or any portion of the Note no more frequently than once every ten (10) business days.

(ii)      Company ’ s Failure to Timely Convert . If within three (3) Trading Days after the Company’s receipt of the facsimile or email copy of a Conversion Notice the Company shall fail to issue and deliver to Holder via “DWAC/FAST” electronic transfer the number of shares of Common Stock to which the Holder is entitled upon such holder’s conversion of any Conversion Amount (a “ Conversion Failure ”), the Original Principal Amount of the Note shall increase by $2,000 per day until the Company issues and delivers a certificate to the Holder or credit the Holder’s balance account with DTC for the number of shares of Common Stock to which the Holder is entitled upon such holder’s conversion of any Conversion Amount (under Holder’s and Company’s expectation that any damages will tack back to the Issuance Date). Company will not be subject to any penalties once its transfer agent processes the shares to the DWAC system. If the Company fails to deliver shares in accordance with the timeframe stated in this Section, resulting in a Conversion Failure, the Holder, at any time prior to selling all of those shares, may rescind any portion, in whole or in part, of that particular conversion attributable to the unsold shares and have the rescinded conversion amount returned to the Outstanding Balance with the rescinded conversion shares returned to the Company (under Holder’s and Company’s expectations that any returned conversion amounts will tack back to the original date of the Note).

(iii)      DWAC/FAST Eligibility .     If the Company fails for any reason to deliver to the Holder the Shares by DWAC/FAST electronic transfer (such as by delivering a physical stock certificate), or if there is a Conversion Failure as defined in Section 3(b)(ii), and if the Holder incurs a Market Price Loss, then at any time subsequent to incurring the loss the Holder may provide the Company written notice indicating the amounts payable to the Holder in respect of the Market Price Loss and the Company must make the Holder whole by either of the following options at Holder’s election:

Market Price Loss = [(High trade price for the period between the day of conversion and the day the shares clear in the Holder’s brokerage account) x (Number of shares receivable from the conversion)] – [(Net Sales price realized by Holder) x (Number of shares receivable from the conversion)].

Option A – Pay Market Price Loss in Cash. The Company must pay the Market Price Loss by cash payment, and any such cash payment must be made by the third business day from the time of the Holder’s written notice to the Company.

Option B – Add Market Price Loss to Outstanding Balance. The Company must pay the Market Price Loss by adding the Market Price Loss to the Outstanding Balance (under Holder’s and the Company’s expectation that any Market Price Loss amounts will tack back to the Issuance Date).

In the case that conversion shares are not deliverable by DWAC/FAST electronic transfer an additional 10% discount to the Conversion Price will apply.

(iv)      DTC Eligibility & Sub-Penny. If the Company fails to maintain its status as “DTC Eligible” for any reason, or, if the effective Conversion Price as calculated in Section 3(a)(ii) is less than $0.01 at any time (regardless of whether or not a Conversion Notice has been submitted to the Company), the Principal Amount of the Note shall increase by ten thousand dollars ($10,000) (under Holder’s and Company’s expectation that any Principal Amount increase will tack back to the Issuance Date). In addition, the Conversion Price shall be permanently redefined to equal the lesser of (a) $0.01 or (b) 50% of the lowest trade occurring during the twenty-five (25) consecutive Trading Days immediately preceding the applicable Conversion Date on which the Holder elects to convert all or part of this Note, subject to adjustment as provided in this Note.

(v)      Par Value True-Up. In the event that the Conversion Price is less than Par Value on the Conversion Date, the Holder may elect to submit a Conversion Notice (attached hereto as Exhibit A) with a conversion price equal to the Company’s Par Value. In addition, upon written notice from the Holder in the form attached hereto as Exhibit B (the “True-Up Notice”), the Holder may require the Company, at the Holder’s election, to either (A) issue and deliver to the Holder a number of shares of Common Stock as equals (X) the Conversion Amount divided by 60% of the lowest trade occurring during the twenty five (25) consecutive Trading Days immediately preceding the applicable Conversion Date, less (Y) the Conversion Amount divided by the Par Value (Any additional shares of Common Stock issuable pursuant to this Section 3(b)(v) shall be referred to herein as “True-Up Shares”), or (B) add to the Outstanding Balance a dollar amount equal to the number of True-Up Shares (as calculated above) multiplied by the high trade price on the Conversion Date (Any dollar amount added to the Outstanding Balance pursuant to this Section 3(b)(v) shall be referred to herein as the “True-Up Balance”) (under Holder’s and the Company’s expectation that any True-Up Balance amounts will tack back to the Issuance Date).

(vi)      Book-Entry . Notwithstanding anything to the contrary set forth herein, upon conversion of any portion of this Note in accordance with the terms hereof, the Holder shall not be required to physically surrender this Note to the Company unless (A) the full Conversion Amount represented by this Note is being converted or (B) the Holder has provided the Company with prior written notice (which notice may be included in a Conversion Notice) requesting reissuance of this Note upon physical surrender of this Note. The Holder and the Company shall maintain records showing the Principal and Interest converted and the dates of such conversions or shall use such other method, reasonably satisfactory to the Holder and the Company, so as not to require physical surrender of this Note upon conversion.

(c)      Limitations on Conversions or Trading .

(i)      Beneficial Ownership . The Company shall not effect any conversions of this Note and the Holder shall not have the right to convert any portion of this Note or receive shares of Common Stock as payment of interest hereunder to the extent that after giving effect to such conversion or receipt of such interest payment, the Holder, together with any affiliate thereof, would beneficially own (as determined in accordance with Section 13(d) of the Exchange Act and the rules promulgated thereunder) in excess of 4.99% of the number of shares of Common Stock outstanding immediately after giving effect to such conversion or receipt of shares as payment of interest. Since the Holder will not be obligated to report to the Company the number of shares of Common Stock it may hold at the time of a conversion hereunder, unless the conversion at issue would result in the issuance of shares of Common Stock in excess of 4.99% of the then outstanding shares of Common Stock without regard to any other shares which may be beneficially owned by the Holder or an affiliate thereof, the Holder shall have the authority and obligation to determine whether the restriction contained in this Section will limit any particular conversion hereunder and to the extent that the Holder determines that the limitation contained in this Section applies, the determination of which portion of the principal amount of this Note is convertible shall be the responsibility and obligation of the Holder. If the Holder has delivered a Conversion Notice for a principal amount of this Note that, without regard to any other shares that the Holder or its affiliates may beneficially own, would result in the issuance in excess of the permitted amount hereunder, the Company shall notify the Holder of this fact and shall honor the conversion for the maximum principal amount permitted to be converted on such Conversion Date in accordance with Section 3(a) and, any principal amount tendered for conversion in excess of the permitted amount hereunder shall remain outstanding under this Note. In the event that the Market Capitalization of the Company falls below $2,500,000, the term “4.99%” above shall be permanently replaced with “9.99%”. “Market Capitalization” shall be defined as the product of (a) the closing price of the Common Stock of the Common stock multiplied by (b) the number of shares of Common Stock outstanding as reported on the Company’s most recently filed Form 10-K or Form 10-Q. The provisions of this Section may be waived by Holder upon not less than 65 days prior written notification to the Company.

(ii)      Capitalization . So long as this as this Note is outstanding, upon written request of the Holder, the Company shall furnish to the Holder the then-current number of common shares issued and outstanding, the then-current number of common shares authorized, and the then-current number of shares reserved for third parties.

(d)      Other Provisions .

(i)      Share Reservation .     The Company shall at all times reserve and keep available out of its authorized Common Stock a number of shares equal to the quotient of the Outstanding Balance divided by the Conversion Price. Within 3 (three) Business Days following the receipt by the Company of a Holder’s notice that such minimum number of shares of Common Stock is not so reserved, the Company shall promptly reserve, on file with the Company’s transfer agent, a sufficient number of shares of Common Stock to comply with such requirement. The Company will at all times reserve at least 1,236,000 shares of Common Stock for conversion.

(ii)      Prepayment.      At any time while this Note is outstanding, the Company shall have the option, upon 10 business days’ notice to Holder, to pre-pay the entire remaining outstanding principal amount of this Note in cash, provided that (i) the Company shall pay the Holder 120% of the Outstanding Balance, (ii) such amount must be paid in cash on the next business day following such 10 business day notice period, and (iii) the Holder may still convert this Note pursuant to the terms hereof at all times until such prepayment amount has been received in full. Except as set forth in this Section 3, the Company may not prepay this Note in whole or in part.

(iii)      Terms of Future Financings. So long as this Note is outstanding, upon any issuance by the Company or any of its subsidiaries of any security (or upon any amendment to any existing security) with any term more favorable to the holder of such security or with a term in favor of the holder of such security that was not similarly provided to the Holder in this Note, then the Company shall notify the Holder of such additional or more favorable term and such term, at Holder’s option, shall become a part of the Note. The types of terms contained in another security that may be more favorable to the holder of such security include, but are not limited to, terms addressing conversion discounts, conversion lookback periods, interest rates, original issue discounts, stock sale price, private placement price per share, and warrant coverage.

(iv)     All c alculations under this Section 3 shall be rounded up to the nearest $0.00001 or whole share.

(v)     Nothing herein shall limit a Holder ’s right to pursue actual damages or declare an Event of Default pursuant to Section 2 herein for the Company’s failure to deliver certificates representing shares of Common Stock upon conversion within the period specified herein and such Holder shall have the right to pursue all remedies available to it at law or in equity including, without limitation, a decree of specific performance and/or injunctive relief, in each case without the need to post a bond or provide other security. The exercise of any such rights shall not prohibit the Holder from seeking to enforce damages pursuant to any other Section hereof or under applicable law.

(4)      Section 3(a)(9) or 3(a)(10) Transaction .   So long as this Note is outstanding, the Company shall not enter into any transaction or arrangement structured in accordance with, based upon, or related or pursuant to, in whole or in part, either Section 3(a)(9) of the Securities Act (a “3(a)(9) Transaction”) or Section 3(a)(10) of the Securities Act (a “3(a)(10) Transaction”). In the event that the Company does enter into, or makes any issuance of Common Stock related to a 3(a)(9) Transaction or a 3(a)(10) Transaction while this note is outstanding, a liquidated damages charge of 25% of the outstanding principal balance of this Note, but not less than $25,000, will be assessed and will become immediately due and payable to the Holder at its election in the form of cash payment or addition to the balance of this Note .

(5)      REGISTRATION RIGHTS . The Company shall provide those certain registration rights to the Holder with respect to the shares of the Company’s common stock into which the Note is convertible into, pursuant to that certain registration rights agreement entered into between the Company and the Holder on the Issuance Date (the “RRA”).

(6)      REISSUANCE OF THIS NOTE .

(a)      Assignability . The Company may not assign this Note. This Note will be binding upon the Company and its successors and will inure to the benefit of the Holder and its successors and assigns and may be assigned by the Holder to anyone of its choosing without Company’s approval.

(b)      Lost, Stolen or Mutilated Note . Upon receipt by the Company of evidence reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this Note, and, in the case of loss, theft or destruction, of any indemnification undertaking by the Holder to the Company in customary form and, in the case of mutilation, upon surrender and cancellation of this Note, the Company shall execute and deliver to the Holder a new Note representing the outstanding Principal.

(7)      NOTICES .     Any notices, consents, waivers or other communications required or permitted to be given under the terms hereof must be in writing and will be deemed to have been delivered: (i) upon receipt, when delivered personally; (ii) upon receipt, when sent by facsimile (provided confirmation of transmission is mechanically or electronically generated and kept on file by the sending party) (iii) upon receipt, when sent by email; or (iv) one (1) Trading Day after deposit with a nationally recognized overnight delivery service, in each case properly addressed to the party to receive the same. The addresses and facsimile numbers for such communications shall be those set forth in the communications and documents that each party has provided the other immediately preceding the issuance of this Note or at such other address and/or facsimile number and/or to the attention of such other person as the recipient party has specified by written notice given to each other party three (3) Business Days prior to the effectiveness of such change. Written confirmation of receipt (i) given by the recipient of such notice, consent, waiver or other communication, (ii) mechanically or electronically generated by the sender’s facsimile machine containing the time, date, recipient facsimile number and an image of the first page of such transmission or (iii) provided by a nationally recognized overnight delivery service, shall be rebuttable evidence of personal service, receipt by facsimile or receipt from a nationally recognized overnight delivery service in accordance with clause (i), (ii) or (iii) above, respectively.

The addresses for such communications shall be:

If to the Company, to:

BioLargo, Inc.

14921 Chestnut St

Westminster, CA 92683

Attn: Dennis Calvert, CEO

E mail: Dennis.Calvert@biolargo.com

With a copy to:

Browning Law Group

3200 Park Center Dr., Ste. 500

Irvine, CA 92626

Attn: John R. Browning

Email: john@browninglawgroup.com

If to the Holder:

VISTA CAPITAL INVESTMENTS, LLC

406 9 ^th Avenue, Suite 201

San Diego, CA 92101

Attn:      David Clark, Principal

Email:     dclark@vci.us.com

(8)      APPLICABLE LAW AND VENUE . This Note shall be governed by and construed in accordance with the laws of the State of Nevada, without giving effect to conflicts of laws thereof. Any action brought by either party against the other concerning the transactions contemplated by this Agreement shall be brought only in the state courts of California or in the federal courts located in the city and county of San Diego, in the State of California. Both parties and the individuals signing this Agreement agree to submit to the jurisdiction of such courts.

(9)      WAIVER . Any waiver by the Holder of a breach of any provision of this Note shall not operate as or be construed to be a waiver of any other breach of such provision or of any breach of any other provision of this Note. The failure of the Holder to insist upon strict adherence to any term of this Note on one or more occasions shall not be considered a waiver or deprive that party of the right thereafter to insist upon strict adherence to that term or any other term of this Note. Any waiver must be in writing.

(10)      LIQUIDATED DAMAGES . Holder and Company agree that in the event Company fails to comply with any of the terms or provisions of this Note, Holder’s damages would be uncertain and difficult (if not impossible) to accurately estimate because of the parties’ inability to predict future interest rates, future share prices, future trading volumes and other relevant factors. Accordingly, Holder and Company agree that any fees, balance adjustments, default interest or other charges assessed under this Note are not penalties but instead are intended by the parties to be, and shall be deemed, liquidated damages (under Holder’s and Company’s expectations that any such liquidated damages will tack back to the Closing Date for purposes of determining the holding period under Rule 144).

(11)      ADJUSTMENTS . Notwithstanding anything to the contrary, any references herein to share numbers or share prices shall be appropriately adjusted for any stock dividend, stock split, stock combination or other similar transaction during such period.

[Signature Page Follows]

IN WITNESS WHEREOF , the Company has caused this Convertible Note to be duly executed by a duly authorized officer as of the date set forth above.

[Signature Page to Convertible Note No. BLGO -1]

The undersigned hereby gives notice to BioLargo, Inc. , a ______ corporation (the “Company”), pursuant to that certain Note dated _______ ___, 20__ by and between the Company and the Holder (the “Note”), that the Holder elects to:

The number of True-Up Shares Holder is entitled to receive is calculated as follows:

Conversion Amount ($___) / ___% of the lowest trade occurring during the _________ (__) consecutive Trading Days immediately preceding the applicable Conversion Date ($_.__) - Conversion Amount ($___) divided by the Par Value ($_.__) =

____________ True-Up Shares

The amount of True-Up Balance to be added to the Outstanding Balance is calculated as follows:

N umber of True-Up Shares (_____) * high trade price on the Conversion Date ($_.__)=

____________ True-Up Balance

Exhibit 10.4

AMENDMENT #1 TO THE SECURITIES PURCHASE AGREEMENT, REGISTRATION RIGHTS AGREEMENT, AND CONVERTIBLE PROMISSORY NOTE DATED DECEMBER 14 , 2017

THIS AMENDMENT #1 (the “Amendment”) TO THE SECURITIES PURCHASE AGREEMENT, REGISTRATION RIGHTS AGREEMENT, AND CONVERTIBLE PROMISSORY NOTE dated December 14, 2017, is made effective as of December 18, 2017, by and between BioLargo, Inc., a Delaware corporation (the “Company”), and Vista Capital Investments, LLC, a California limited liability company (the “Holder”) (collectively the “Parties”).

BACKGROUND

A.     The Company and Holder are the parties to that certain securities purchase agreement (the “SPA”), registration rights agreement (“RRA”), and convertible promissory note in the principal amount of $500,000.00 (the “Note”), all dated December 14, 2017; and

B.     T he Parties desire to amend the SPA, RRA, and Note, as set forth expressly below, to acknowledge the actual date of closing of the transactions contemplated by the SPA, RRA, and Note.

NOW THEREFORE, in consideration of the execution and delivery of the Amendment and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties agree as follows:

1.     All references in the SPA, RRA, and Note to December 14, 2017 shall be replaced with December 18, 2017.

2.     This Amendment shall be deemed part of, but shall take precedence over and supersede any provisions to the contrary contained in the SPA, RRA, and Note. Except as specifically modified hereby, all of the provisions of the SPA, RRA, and Note, which are not in conflict with the terms of this Amendment, shall remain in full force and effect.

[Signature page to follow]

IN WITNESS WHEREOF, the parties hereto have executed this Amendment as of the date first above written.

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