2017 EQUITY INCENTIVE PLAN

AGEX THERAPEUTICS, INC.

1. Purpose; Eligibility .

1.1 General Purpose . The name of this plan is the AgeX Therapeutics, Inc. 2017 Equity Incentive Plan (the “ Plan ”). The purposes of the Plan are to (a) enable the Company, to attract and retain the types of Employees, Consultants and Directors who will contribute to the Company’s long range success; (b) provide incentives that align the interests of Employees, Consultants and Directors with those of the shareholders of the Company; and (c) promote the success of the Company’s business.

1.2 Eligible Award Recipients . The persons eligible to receive Awards are the Employees, Consultants and Directors of the Company.

1.3 Available Awards . Awards that may be granted under the Plan include: (a) Incentive Stock Options, (b) Non-qualified Stock Options, (c) Stock Appreciation Rights, and (d) Stock Awards.

2. Definitions .

“ Applicable Laws ” means the requirements related to or implicated by the administration of the Plan under applicable state corporate law, United States federal and state securities laws, the Code, any stock exchange or quotation system on which the shares of Common Stock are listed or quoted, and the applicable laws of any foreign country or jurisdiction where Awards are granted under the Plan.

“ Award ” means any right granted under the Plan, including an Incentive Stock Option, a Non-qualified Stock Option, a Stock Appreciation Right, or a Stock Award.

“ Award Agreement ” means a written agreement, contract, certificate or other instrument or document evidencing the terms and conditions of an individual Award granted under the Plan which may, in the discretion of the Company, be transmitted electronically to any Participant. Each Award Agreement shall be subject to the terms and conditions of the Plan.

“AgeX” means AgeX Therapeutics, Inc., a Delaware corporation, and any successor company or any parent company.

“ Board ” means the Board of Directors of AgeX, as constituted at any time.

“ Cause ” means:

With respect to any Employee or Consultant:(a) If the Employee or Consultant is a party to an employment or service agreement with the Company or its Affiliates and such agreement provides for a definition of Cause, the definition contained therein; or(b) If no such agreement exists, or if such agreement does not define Cause: (i) the commission of, or plea of guilty or no contest to, a felony or a crime involving moral turpitude or the commission of any other act involving wilful malfeasance or material fiduciary breach with respect to the Company or an Subsidiary; (ii) conduct that results in or is reasonably likely to result in harm to the reputation or business of the Company or any of its Affiliates; (iii) wilful conversion or misappropriation of corporate funds; (iv) gross negligence or wilful misconduct with respect to the Company or an Subsidiary; or (v) material violation of any state or federal securities law.

With respect to any Director, a determination by a majority of the disinterested Board members that the Director has engaged in any of the following:(a) malfeasance in office;(b) gross misconduct or neglect;(c) false or fraudulent misrepresentation inducing the director’s appointment;(d) wilful conversion or misappropriation of corporate funds; or(e) repeated failure to participate in Board meetings on a regular basis despite having received proper notice of the meetings in advance.

The Committee, in its absolute discretion, shall determine the effect of all matters and questions relating to whether a Participant has been discharged for Cause.

“ Change in Control ” (a) the direct or indirect sale, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a series of related transactions, of all or substantially all of the properties or assets of the Company and its subsidiaries, taken as a whole, to any Person that is not a subsidiary of the Company; (b) the date which is 10 business days prior to the consummation of a complete liquidation or dissolution of the Company; (c) the acquisition by any Person of Beneficial Ownership of 50% or more (on a fully diluted basis) of either (i) the then outstanding shares of Common Stock of the Company, taking into account as outstanding for this purpose such Common Stock issuable upon the exercise of options or warrants, the conversion of convertible stock or debt, and the exercise of any similar right to acquire such Common Stock (the “Outstanding Company Common Stock”) or (ii) the combined voting power of the then outstanding voting securities of the Company entitled to vote generally in the election of directors (the “Outstanding Company Voting Securities”); provided, however, that for purposes of this Plan, the following acquisitions shall not constitute a Change in Control: (A) any acquisition by the Company or any Subsidiary, (B) any acquisition by any employee benefit plan sponsored or maintained by the Company or any subsidiary, (C) any acquisition which complies with clauses, (i), (ii) and (iii) of subsection (d) of this definition or (D) in respect of an Award held by a particular Participant, any acquisition by the Participant or any group of persons including the Participant (or any entity controlled by the Participant or any group of persons including the Participant); or (d) the consummation of a reorganization, merger, consolidation, statutory share exchange or similar form of corporate transaction involving the Company that requires the approval of the Company’s shareholders, whether for such transaction or the issuance of securities in the transaction (a “Business Combination”), unless immediately following such Business Combination: (i) more than 50% of the total voting power of (A) the entity resulting from such Business Combination (the “Surviving Company”), or (B) if applicable, the ultimate parent entity that directly or indirectly has beneficial ownership of sufficient voting securities eligible to elect a majority of the members of the board of directors (or the analogous governing body) of the Surviving Company (the “Parent Company”), is represented by the Outstanding Company Voting Securities that were outstanding immediately prior to such Business Combination (or, if applicable, is represented by shares into which the Outstanding Company Voting Securities were converted pursuant to such Business Combination), and such voting power among the holders thereof is in substantially the same proportion as the voting power of the Outstanding Company Voting Securities among the holders thereof immediately prior to the Business Combination; (ii) no Person (other than any employee benefit plan sponsored or maintained by the Surviving Company or the Parent Company) is or becomes the Beneficial Owner, directly or indirectly, of 50% or more of the total voting power of the outstanding voting securities eligible to elect members of the board of directors of the Parent Company (or the analogous governing body) (or, if there is no Parent Company, the Surviving Company); and (iii) at least a majority of the members of the board of directors (or the analogous governing body) of the Parent Company (or, if there is no Parent Company, the Surviving Company) following the consummation of the Business Combination were Board members at the time of the Board’s approval of the execution of the initial agreement providing for such Business Combination.

“ Code ” means the Internal Revenue Code of 1986, as it may be amended from time to time. Any reference to a section of the Code shall be deemed to include a reference to any regulations promulgated thereunder.

“ Committee ” means a committee of the Board appointed by the Board to administer the Plan in accordance with Section 3.3 and Section 3.4 .

“ Common Stock ” means the common stock, par value $0.0001 per share, of AgeX, or such other securities of the AgeX as may be designated by the Board or Committee from time to time in substitution thereof.

“ Company ” means AgeX and any or all of its Subsidiaries.

“ Consultant ” means any individual who is engaged by the Company to render consulting or advisory services.

“ Continuous Service ” means that the Participant’s service with the Company, whether as an Employee, Consultant or Director, is not interrupted or terminated. The Participant’s Continuous Service shall not be deemed to have terminated merely because of a change in the capacity in which the Participant renders service to the Company as an Employee, Consultant or Director or a change in the entity for which the Participant renders such service (such as a change of employment from one Subsidiary to another Subsidiary), provided that there is no interruption or termination of the Participant’s Continuous Service; provided further that if any Award is subject to Section 409A of the Code, this sentence shall only be given effect to the extent consistent with Section 409A of the Code. For example, a change in status from an Employee to a Director will not constitute an interruption of Continuous Service. The Board or Committee, in its sole discretion, may determine whether Continuous Service shall be considered interrupted in the case of any leave of absence approved by the Board or Committee, such as sick leave, military leave, or any other personal or family leave of absence.

“ Director ” means a member of the Board.

“ Disability ” means that the Participant is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment; provided, however, for purposes of determining the term of an Incentive Stock Option pursuant to Section 6.10 hereof, the term Disability shall have the meaning ascribed to it under Section 22(e)(3) of the Code. The determination of whether an individual has a Disability shall be determined by the Board or Committee or under procedures adopted by the Board or Committee. Except for a determination of Disability within the meaning of Section 22(e)(3) of the Code for purposes of an Incentive Stock Option, the Board or Committee may rely on any determination that a Participant is disabled for purposes of benefits under any long-term disability plan maintained by the Company in which a Participant participates.

“ Effective Date ” shall mean the date as of which this Plan is adopted by the Board.

“ Employee ” means any person employed by the Company; provided, that, for purposes of determining eligibility to receive Incentive Stock Options, an Employee shall mean an employee of the Company or a parent corporation within the meaning of Code Section 424. Mere service as a Director or payment of a director’s fee by the Company shall not be sufficient to constitute “employment” by the Company.

“ Exchange Act ” means the Securities Exchange Act of 1934, as amended.

“ Fair Market Value ” means, as of any date, the value of the Common Stock as determined below. If the Common Stock is listed on any national stock exchange, inter-dealer quotation system, or over-the-counter market that reports closing prices, including without limitation, the New York Stock Exchange, NYSE MKT, or the OTC Bulletin Board, the Fair Market Value shall be the closing price of a share of Common Stock (or if no sales were reported the closing price on the date immediately preceding such date) as quoted on such exchange or system on the day of determination, as reported in the Wall Street Journal or such other source as the Board or Committee deems reliable. In the absence of an established market for the Common Stock, the Fair Market Value shall be determined in good faith by the Board or Committee, using such methods as the Board or Committee determines to be reasonable under the circumstances, and such determination shall be conclusive and binding on all persons.

“ Free Standing Rights ” has the meaning set forth in Section 7.1(a) .

“ Good Reason ” means: (a) if an Employee or Consultant is a party to an employment or service agreement with the Company and such agreement provides for a definition of Good Reason, the definition contained therein; or (b) if no such agreement exists or if such agreement does not define Good Reason, the occurrence of one or more of the following without the Participant’s express written consent, which circumstances are not remedied by the Company within thirty (30) days of its receipt of a written notice from the Participant describing the applicable circumstances (which notice must be provided by the Participant within ninety (90) days of the Participant’s knowledge of the applicable circumstances): (i) any material increase in the Participant’s duties (other than by way of promotion attendant with additional responsibilities, authority or title and an increase in salary commensurate therewith), (ii) any material diminution of responsibilities, authority, title, status or reporting structure; (iii) a material reduction in the Participant’s base salary or bonus opportunity; or (iv) a geographical relocation of the Participant’s principal office location by more than fifty (50) miles.

“ Grant Date ” means the date on which the Board or Committee adopts a resolution, or takes other appropriate action, expressly granting an Award to a Participant that specifies the key terms and conditions of the Award or, if a later date is set forth in such resolution, then such date as is set forth in such resolution.

“ Incentive Stock Option ” means an Option intended to qualify as an incentive stock option within the meaning of Section 422 of the Code.

“ Non-Employee Director ” means a Director who is a “non-employee director” within the meaning of Rule 16b-3.

“ Non-qualified Stock Option ” means an Option that by its terms does not qualify or is not intended to qualify as an Incentive Stock Option.

“ Officer ” means a person who is an officer of the Company within the meaning of Section 16 of the Exchange Act and the rules and regulations promulgated thereunder.

“ Option ” means an Incentive Stock Option or a Non-qualified Stock Option granted pursuant to the Plan.

“ Optionholder ” means a person to whom an Option is granted pursuant to the Plan or, if applicable, such other person who holds an outstanding Option.

“ Option Exercise Price ” means the price at which a share of Common Stock may be purchased upon the exercise of an Option.

“ Outside Director ” means a Director who is an “outside director” within the meaning of Section 162(m) of the Code and Treasury Regulations Section 1.162-27(e)(3).

“ Participant ” means an eligible person to whom an Award is granted pursuant to the Plan or, if applicable, such other person who holds an outstanding Award.

“ Performance Goals ” means one or more goals established by the Board or Committee that must be attained by AgeX or a Subsidiary, or a division, business unit or operational unit of AgeX or a Subsidiary in order for an Award to vest or for the determination of the amount of an Award. A Performance Goal may be based on financial results or performance or upon the attainment of any other goal or milestone designated by the Board or Committee such as, by way of example only and not by way of limitation, the attainment of a specified amount of sales, revenues, or net income, an increase in the Fair Market Value of the Common Stock, or the commencement or successful completion of a clinical trial of a new drug, biological product, or medical device.

“ Permitted Transferee ” means: (a) a member of the Optionholder’s immediate family (child, stepchild, grandchild, parent, stepparent, grandparent, spouse, former spouse, sibling, niece, nephew, mother-in-law, father-in-law, son-in-law, daughter-in-law, brother-in-law, or sister-in-law, including adoptive relationships), any person sharing the Optionholder’s household (other than a tenant or employee), a trust in which these persons have more than 50% of the beneficial interest, a foundation in which these persons (or the Optionholder) control the management of assets, and any other entity in which these persons (or the Optionholder) own more than 50% of the voting interests; and (b) in conjunction with the exercise of an Option, and for the purpose of obtaining financing for such exercise, the option holder may arrange for a securities broker/dealer to exercise an option on the option holder’s behalf, to the extent necessary to obtain funds required to pay the exercise price of the option, provided that the Fair Market Value of the Common Stock determined as of the date immediately before the date of such transfer exceeded the exercise price of the Option.

“ Plan ” means this AgeX 2017 Equity Incentive Plan, as amended and/or amended and restated from time to time.

“ Related Rights ” has the meaning set forth in Section 7.1(a) .

“ Restricted Period ” has the meaning set forth in Section 7.2(a) .

“ Rule 16b-3 ” means Rule 16b-3 promulgated under the Exchange Act or any successor to Rule 16b-3, as in effect from time to time.

“ Securities Act ” means the Securities Act of 1933, as amended.

“ Stock Appreciation Right ” means the right pursuant to an Award granted under Section 7.1 to receive, upon exercise, an amount payable in cash or shares equal to the number of shares subject to the Stock Appreciation Right that is being exercised multiplied by the excess of (a) the Fair Market Value of a share of Common Stock on the date the Award is exercised, over (b) the exercise price specified in the Stock Appreciation Right Award Agreement.

“ Stock Award ” means any Award granted pursuant to Section 7.2(a) .

“ Stock for Stock Exchange ” has the meaning set forth in Section 6.4 .

“Subsidiary” means (i) any corporation or other entity in which the Company possesses directly or indirectly equity interests representing at least 50% of the total ordinary voting power or at least 50% of the total value of all classes of equity interests of such corporation or other entity and (ii) any other entity in which the Company has a direct or indirect economic interest that is designated as a Subsidiary by the Committee.

“ Ten Percent Shareholder ” means a person who owns (or is deemed to own pursuant to Section 424(d) of the Code) stock possessing more than 10% of the total combined voting power of all classes of stock of the Company or of any of its Subsidiaries.

“Voting Securities” means any class or series of stock or other securities entitling the holder vote for the election of Directors generally, but shall exclude any such security that entitles the holder to designate, appoint, or vote for the election of a minority of the Directors.

3. Administration .

3.1 Authority of Committee . The Plan shall be administered by the Board or, in the Board’s sole discretion, by a Committee. Subject to the terms of the Plan, the Board or Committee shall have the authority:

(a) to construe and interpret the Plan and apply its provisions;

(b) to promulgate, amend, and rescind rules and regulations relating to the administration of the Plan;

(c) to authorize any person to execute, on behalf of the Company, any instrument required to carry out the purposes of the Plan;

(d) to determine when Awards are to be granted under the Plan and the applicable Grant Date;

(e) from time to time to select those Participants to whom Awards shall be granted;

(f) to determine the number of shares of Common Stock to be made subject to each Award;

(g) to determine whether each Option is to be an Incentive Stock Option or a Non-qualified Stock Option;

(h) to prescribe the terms and conditions of each Award, including, without limitation, the exercise price and medium of payment and vesting provisions, and to specify the provisions of the Award Agreement relating to such grant;

(i) to amend any outstanding Awards, including for the purpose of modifying the time or manner of vesting, or the term of any outstanding Award; provided, however , that if any such amendment impairs a Participant’s rights or increases a Participant’s obligations under his or her Award or creates or increases a Participant’s federal income tax liability with respect to an Award, such amendment shall also be subject to the Participant’s consent;

(j) to determine the duration and purpose of leaves of absences which may be granted to a Participant without constituting termination of their employment for purposes of the Plan, which periods shall be no shorter than the periods generally applicable to Employees under the Company’s employment policies;

(k) to make decisions with respect to outstanding Awards that may become necessary upon a change in corporate control or an event that triggers anti-dilution adjustments;

(l) to interpret, administer, reconcile any inconsistency in, correct any defect in and/or supply any omission in the Plan and any instrument or agreement relating to, or Award granted under, the Plan; and

(m) to exercise discretion to make any and all other determinations which it determines to be necessary or advisable for the administration of the Plan.

The Board or Committee also may modify the purchase price or the exercise price of any outstanding Award, provided that if the modification effects a repricing, shareholder approval shall be required before the repricing is effective. As used in this paragraph, repricing means (i) reduction in the exercise price of an outstanding Option or SAR, and (ii) cancellation of an “underwater” or “out-of-the money” Award in exchange for other Awards or cash. An “underwater” or “out-of-the money” Award is one for which the exercise price is greater than the Fair Market Value of the underlying Common Stock.

3.2 Decisions Final . All decisions made by the Board or Committee pursuant to the provisions of the Plan shall be final and binding on the Company and the Participants.

3.3 Delegation . The Board may delegate administration of the Plan to a committee or committees of the Board, and the term “ Committee ” shall apply to any such committee. The Board may abolish the Committee at any time and revest in the Board the administration of the Plan. The members of the Committee shall be appointed by and serve at the pleasure of the Board. From time to time, the Board may increase or decrease the size of the Committee, add additional members to, remove members (with or without cause) from, appoint new members in substitution therefor, and fill vacancies, however caused, in the Committee. The Committee shall act pursuant to a vote of the majority of its members or, in the case of a Committee comprised of only two members, the unanimous consent of its members, whether present or not, or by the written consent of the majority of its members and minutes shall be kept of all of its meetings and copies thereof shall be provided to the Board. Subject to the limitations prescribed by the Plan and the Board, the Committee may establish and follow such rules and regulations for the conduct of its business as it may determine to be advisable.

3.4 Committee Composition . Except as otherwise determined by the Board, the Committee shall consist solely of two or more Non-Employee Directors who are also Outside Directors. The Board shall have discretion to determine whether or not it intends to comply with the exemption requirements of Rule 16b-3 and/or Section 162(m) of the Code. However, if the Board intends to satisfy such exemption requirements, with respect to Awards to any “covered employee” (as defined in Section 162(m)(3) of the Code, as interpreted by Internal Revenue Service Notice 2007-49) and with respect to any insider subject to Section 16 of the Exchange Act, the Committee shall be a compensation committee of the Board that at all times consists solely of two or more Non-Employee Directors who are also Outside Directors. Nothing herein shall create an inference that an Award is not validly granted under the Plan in the event Awards are granted under the Plan by a compensation committee of the Board that does not at all times consist solely of two or more Non-Employee Directors who are also Outside Directors.

4. Shares Subject to the Plan .

4.1 Subject to adjustment in accordance with Section 11 , a total of 4,000,000 shares of Common Stock shall be available for the grant of Awards under the Plan. Any shares of Common Stock granted in connection with Options and Stock Appreciation Rights shall be counted against this limit as one share for every one Option or Stock Appreciation Right awarded. Any shares of Common Stock granted in connection with Awards other than Options and Stock Appreciation Rights shall be counted against this limit as two (2) shares of Common Stock for every one (1) share of Common Stock granted in connection with such Award. During the terms of the Awards, the Company shall keep available at all times the number of shares of Common Stock required to satisfy such Awards.

4.2 Subject to adjustment in accordance with Section 11 , no Participant shall be granted, during any one (1) year period, Options to purchase Common Stock and Stock Appreciation Rights with respect to more than 1,000,000 shares of Common Stock in the aggregate or any other Awards with respect to more than 500,000 shares of Common Stock in the aggregate. If an Award is to be settled in cash, the number of shares of Common Stock on which the Award is based shall not count toward the individual share limit set forth in this Section 4 .

4.3 Any shares of Common Stock subject to an Award that is cancelled, forfeited or expires prior to exercise or realization, either in full or in part, shall again become available for issuance under the Plan. Any shares of Common Stock that again become available for future grants pursuant to this Section shall be added back as one share if such shares were subject to Options or Stock Appreciation Rights and as two (2) shares if such shares were subject to other Awards. Notwithstanding anything to the contrary contained herein: shares subject to an Award under the Plan shall not again be made available for issuance or delivery under the Plan if such shares are (a) shares tendered in payment of an Option, (b) shares delivered or withheld by the Company to satisfy any tax withholding obligation, (c) shares covered by a stock-settled Stock Appreciation Right or other Awards that were not issued upon the settlement of the Award, or (d) shares repurchased by the Company using Option proceeds.

5. Eligibility .

5.1 Eligibility for Specific Awards . Incentive Stock Options may be granted only to Employees. Awards other than Incentive Stock Options may be granted to Employees, Consultants and Directors. Awards may be granted to individuals whom the Committee determines are reasonably expected to become Employees, Consultants and Directors; provided that such grant and the Grant Date shall become effective only the individual becoming an Employee, Consultant or Director.

5.2 Ten Percent Shareholders . A Ten Percent Shareholder shall not be granted an Incentive Stock Option unless the Option Exercise Price is at least 110% of the Fair Market Value of the Common Stock at the Grant Date and the Option is not exercisable after the expiration of five years from the Grant Date.

6. Option Provisions . Each Option granted under the Plan shall be evidenced by an Award Agreement. Each Option so granted shall be subject to the conditions set forth in this Section 6 , and to such other conditions not inconsistent with the Plan as may be reflected in the applicable Award Agreement. All Options shall be separately designated Incentive Stock Options or Non-qualified Stock Options at the time of grant, and, if certificates are issued, a separate certificate or certificates will be issued for shares of Common Stock purchased on exercise of each type of Option. Notwithstanding the foregoing, the Company shall have no liability to any Participant or any other person if an Option designated as an Incentive Stock Option fails to qualify as such at any time or if an Option is determined to constitute “nonqualified deferred compensation” within the meaning of Section 409A of the Code and the terms of such Option do not satisfy the requirements of Section 409A of the Code. The provisions of separate Options need not be identical, but each Option shall include (through incorporation of provisions hereof by reference in the Option or otherwise) the substance of each of the following provisions:

6.1 Term . An Option shall expire, and thereafter no longer be exercisable, on such date as the Board or Committee may designate; provided, however , no Option shall be exercisable after the expiration of 10 years from the Grant Date, and no Incentive Stock Option granted to a Ten Percent Shareholder shall be exercisable after the expiration of 5 years from the Grant Date. The expiration date of each Option shall be stated in the Award Agreement pertaining to the Option.

6.2 Exercise Price of An Incentive Stock Option . Subject to the provisions of Section 5.2 pertaining to Incentive Stock Options granted to Ten Percent Shareholders, the Option Exercise Price of each Incentive Stock Option shall be not less than 100% of the Fair Market Value of the Common Stock subject to the Option on the Grant Date. Notwithstanding the foregoing, an Incentive Stock Option may be granted with an Option Exercise Price lower than that set forth in the preceding sentence if such Option is granted pursuant to an assumption or substitution for another option in a manner satisfying the provisions of Section 424(a) of the Code.

6.3 Exercise Price of a Non-qualified Stock Option . The Option Exercise Price of each Non-qualified Stock Option shall be not less than 100% of the Fair Market Value of the Common Stock subject to the Option on the Grant Date. Notwithstanding the foregoing, a Non-qualified Stock Option may be granted with an Option Exercise Price lower than that set forth in the preceding sentence if such Option is granted pursuant to an assumption or substitution for another option in a manner satisfying the provisions of Section 409A of the Code.

6.4 Consideration . The Option Exercise Price of Common Stock acquired pursuant to an Option shall be paid, to the extent permitted by applicable statutes and regulations, either (a) in cash or by certified or bank check at the time the Option is exercised or (b) to the extent approved by the Board or Committee, the Option Exercise Price may be paid: (i) by delivery to the Company of other Common Stock, duly endorsed for transfer to the Company, with a Fair Market Value on the date of delivery equal to the Option Exercise Price (or portion thereof) due for the number of shares being acquired (a “ Stock for Stock Exchange ”); (ii) a “cashless” exercise program established with a broker pursuant to which the broker exercises or arranges for the coordination of the exercise of the Option with the sale of some or all of the underlying Common Stock; (iii) any combination of the foregoing methods; or (iv) in any other form of consideration that is legal consideration for the issuance of Common Stock and that may be acceptable to the Board or Committee. Unless otherwise specifically provided in the Option, the exercise price of Common Stock acquired pursuant to an Option that is paid by delivery to the Company of other Common Stock acquired, directly or indirectly from the Company, shall be paid only by shares of the Common Stock of the Company that have been held for more than six months (or such longer or shorter period of time required to avoid a charge to earnings for financial accounting purposes). Notwithstanding the foregoing, during any period for which the Common Stock is publicly traded (i.e., the Common Stock is listed on any national securities exchange or an interdealer quotation system, or is traded in an over-the-counter market that reports closing prices) an exercise by a Director or Officer that involves or may involve a direct or indirect extension of credit or arrangement of an extension of credit by the Company, directly or indirectly, in violation of Section 402(a) of the Sarbanes-Oxley Act of 2002 shall be prohibited with respect to any Award under this Plan.

6.5 Transferability of An Incentive Stock Option . An Incentive Stock Option shall not be transferable except by will or by the laws of descent and distribution and shall be exercisable during the lifetime of the Optionholder only by the Optionholder.

6.6 Transferability of a Non-qualified Stock Option . A Non-qualified Stock Option may, in the sole discretion of the Board or Committee, be transferable to a Permitted Transferee, upon approval by the Board or Committee, to the extent provided in the Award Agreement or by subsequent consent granted by the Board or Committee. If the Non-qualified Stock Option does not provide for transferability or consent to transfer to a Permitted Transferee is not granted by the Board or Committee, then the Non-qualified Stock Option shall not be transferable except by will or by the laws of descent and distribution and shall be exercisable during the lifetime of the Optionholder only by the Optionholder.

6.7 Vesting of Options . Each Option may, but need not, vest and therefore become exercisable in periodic instalments as determined by the Board or Committee or based upon the attainment of a Performance Goal or the occurrence of a specified event. The vesting provisions of individual Options may vary. No Option may be exercised for a fraction of a share of Common Stock.

6.8 Termination of Continuous Service . Unless otherwise provided in an Award Agreement or in an employment agreement the terms of which have been approved by the Board or Committee, in the event an Optionholder’s Continuous Service terminates (other than upon the Optionholder’s death or Disability), the Optionholder may exercise his or her Option (to the extent that the Optionholder was entitled to exercise such Option as of the date of termination) but only within such period of time ending on the earlier of (a) the date three months following the termination of the Optionholder’s Continuous Service or (b) the expiration of the term of the Option as set forth in the Award Agreement. If, after termination, the Optionholder does not exercise his or her Option within the time specified in the Award Agreement, the Option shall terminate.

6.9 Extension of Termination Date . An Optionholder’s Award Agreement may also provide that if the exercise of the Option following the termination of the Optionholder’s Continuous Service for any reason would be prohibited at any time because the issuance of shares of Common Stock would violate the registration requirements under the Securities Act or any other state or federal securities law or the rules of any securities exchange or interdealer quotation system, then the Option shall terminate on the earlier of (a) the expiration of the term of the Option in accordance with Section 6.1 or (b) the expiration of a period after termination of the Participant’s Continuous Service that is three months after the end of the period during which the exercise of the Option would be in violation of such registration or other securities law requirements.

6.10 Disability of Optionholder . Unless otherwise provided in an Award Agreement, in the event that an Optionholder’s Continuous Service terminates as a result of the Optionholder’s Disability, the Optionholder may exercise his or her Option (to the extent that the Optionholder was entitled to exercise such Option as of the date of termination), but only within such period of time ending on the earlier of (a) the date 12 months following such termination or (b) the expiration of the term of the Option as set forth in the Award Agreement. If, after termination, the Optionholder does not exercise his or her Option within the time specified herein or in the Award Agreement, the Option shall terminate.

6.11 Death of Optionholder . Unless otherwise provided in an Award Agreement, in the event an Optionholder’s Continuous Service terminates as a result of the Optionholder’s death, then the Option may be exercised (to the extent the Optionholder was entitled to exercise such Option as of the date of death) by the Optionholder’s estate, executor, or personal representative, by a person who acquired the right to exercise the Option by bequest, but only within the period ending on the earlier of (a) the date 12 months following the date of death or (b) the expiration of the term of such Option as set forth in the Award Agreement. If, after the Optionholder’s death, the Option is not exercised within the time specified herein or in the Award Agreement, the Option shall terminate.

6.12 Incentive Stock Option $100,000 Limitation . To the extent that the aggregate Fair Market Value (determined at the time of grant) of Common Stock with respect to which Incentive Stock Options are exercisable for the first time by any Optionholder during any calendar year (under all plans of the Company) exceeds $100,000, the Options or portions thereof which exceed such limit (according to the order in which they were granted) shall be treated as Non-qualified Stock Options.

7. Provisions of Awards Other Than Options .

7.1 Stock Appreciation Rights .

(a) General

Each Stock Appreciation Right granted under the Plan shall be evidenced by an Award Agreement. Each Stock Appreciation Right so granted shall be subject to the conditions set forth in this Section 7.1 , and to such other conditions not inconsistent with the Plan as may be reflected in the applicable Award Agreement. Stock Appreciation Rights may be granted alone (“ Free Standing Rights ”) or in tandem with an Option granted under the Plan (“ Related Rights ”).

(b) Grant Requirements

Any Related Right that relates to a Non-qualified Stock Option may be granted at the same time the Option is granted or at any time thereafter but before the exercise or expiration of the Option. Any Related Right that relates to an Incentive Stock Option must be granted at the same time the Incentive Stock Option is granted.

(c) Term of Stock Appreciation Rights

The term of a Stock Appreciation Right granted under the Plan shall be determined by the Board or Committee; provided, however , no Stock Appreciation Right shall be exercisable later than the tenth anniversary of the Grant Date.

(d) Vesting of Stock Appreciation Rights

Each Stock Appreciation Right may, but need not, vest and therefore become exercisable in periodic instalments as determined by the Board or Committee or based upon the attainment of a Performance Goal or the occurrence of a specified event. The vesting provisions of individual Stock Appreciation Rights may vary. No Stock Appreciation Right may be exercised for a fraction of a share of Common Stock.

(e) Exercise and Payment

Upon exercise of a Stock Appreciation Right, the holder shall be entitled to receive from the Company an amount equal to the number of shares of Common Stock subject to the Stock Appreciation Right that is being exercised multiplied by the excess of (i) the Fair Market Value of a share of Common Stock on the date the Award is exercised, over (ii) the exercise price specified in the Stock Appreciation Right or related Option. Payment with respect to the exercise of a Stock Appreciation Right shall be made on the date of exercise. Payment shall be made in the form of shares of Common Stock (with or without restrictions as to substantial risk of forfeiture and transferability, as determined by the Board Committee in its sole discretion), cash or a combination thereof, as determined by the Board or Committee.

(f) Exercise Price

The exercise price of a Free Standing Stock Appreciation Right shall be determined by the Board or Committee, but shall not be less than 100% of the Fair Market Value of one share of Common Stock on the Grant Date of the Stock Appreciation Right. A Related Right granted simultaneously with or subsequent to the grant of an Option and in conjunction therewith or in the alternative thereto shall have the same exercise price as the related Option, shall be transferable only upon the same terms and conditions as the related Option, and shall be exercisable only to the same extent as the related Option; provided, however , that a Stock Appreciation Right, by its terms, shall be exercisable only when the Fair Market Value per share of Common Stock subject to the Stock Appreciation Right and related Option exceeds the exercise price per share thereof. No Stock Appreciation Rights may be granted in tandem with an Option unless the Board or Committee determines that the requirements of Section 7.1(b) are satisfied.

(g) Reduction in the Underlying Option Shares

Upon any exercise of a Related Right, the number of shares of Common Stock for which any related Option shall be exercisable shall be reduced by the number of shares for which the Stock Appreciation Right has been exercised. The number of shares of Common Stock for which a Related Right shall be exercisable shall be reduced upon any exercise of any related Option by the number of shares of Common Stock for which such Option has been exercised.

7.2 Stock Awards .

(a) General

A Stock Award is an Award of actual shares of Common Stock (“ Restricted Stock ”) or hypothetical Common Stock units (“ Restricted Stock Units ”) having a value equal to the Fair Market Value of an identical number of shares of Common Stock. A Stock Award may, but need not, provide that such Stock Award may not be sold, assigned, transferred or otherwise disposed of, or pledged or hypothecated as collateral for a loan or as security for the performance of any obligation or for any other purpose for such period as the Board or Committee shall determine (the “ Restricted Period ”). Each Stock Award granted under the Plan shall be evidenced by an Award Agreement. Each Stock Award so granted shall be subject to the conditions set forth in this Section 7.2 , and to such other conditions not inconsistent with the Plan as may be reflected in the applicable Award Agreement.

(b) Restricted Stock and Restricted Stock Units

(c) Restrictions

(d) Restricted Period

With respect to Stock Awards, the Restricted Period shall commence on the Grant Date and end at the time or times set forth on a schedule established by the Board or Committee in the applicable Award Agreement. The Board or Committee may, but shall not be required to, provide for an acceleration of the expiration of a Restricted Period upon the occurrence of a specified event.

(e) Delivery of Restricted Stock and Settlement of Restricted Stock Units

Upon the expiration of the Restricted Period with respect to any shares of Restricted Stock, the restrictions set forth in Section 7.2(c) and the applicable Award Agreement shall be of no further force or effect with respect to such shares, except as set forth in the applicable Award Agreement. If an escrow arrangement is used, upon such expiration, the Company shall deliver to the Participant, or his or her beneficiary, without charge, the stock certificate evidencing the shares of Restricted Stock which have not then been forfeited and with respect to which the Restricted Period has expired (provided, that no fractional shares shall be issued) and any cash dividends or stock dividends credited to the Participant’s account with respect to such Restricted Stock and the interest thereon, if any. Upon the expiration of the Restricted Period with respect to any outstanding Restricted Stock Units, the Company shall deliver to the Participant, or his or her beneficiary, without charge, one share of Common Stock for each such outstanding Restricted Stock Unit (“ Vested Unit ”); provided, however , that, if explicitly provided in the applicable Award Agreement, the Company may, in its sole discretion, elect to pay cash or part cash and part Common Stock in lieu of delivering only shares of Common Stock for Vested Units. If a cash payment is made in lieu of delivering shares of Common Stock, the amount of such payment shall be equal to the Fair Market Value of the Common Stock as of the date on which the Restricted Period lapsed with respect to each Vested Unit.

(f) Stock Restrictions

Each certificate representing Restricted Stock awarded under the Plan shall, in addition to any other legends as may be required by law or by the Board or Committee, bear a legend to the following effect:

THESE SHARES MAY BE TRANSFERRED ONLY IN ACCORDANCE WITH THE TERMS OF AN AGREEMENT BETWEEN THE COMPANY AND THE SHAREHOLDER, A COPY OF WHICH IS ON FILE WITH THE SECRETARY OF THE COMPANY

8. Securities Law Compliance . All Awards, including all Options, Stock Appreciation Rights, and Stock Awards granted under the Plan shall be subject to the requirement that, if at any time the Board or the Committee shall determine, in its discretion, that the listing upon any securities exchange, or the registration under the Securities Act, or registration or qualification under any state law is required for the grant, exercise, issue , or sale of any Options, Stock Appreciation Rights, Common Stock, or Restricted Stock Units under the Plan, or the consent or approval of any government regulatory body, is necessary or desirable as a condition of, or in connection therewith, such Option, Stock Appreciation Rights, or Stock Award may not be exercised in whole or in part unless such listing, registration, qualification, consent or approval shall have been effected or obtained free of any conditions not acceptable to the Board or the Committee. Furthermore, if the Board or the Committee determines that any amendment to any Award (including, but not limited to, an increase in the exercise price of any Option or Stock Award) is necessary or desirable in connection with the registration or qualification of any of its shares under any state securities or “blue sky” law, then the Board or the Committee shall have the unilateral right to make such changes without the consent of the Participant to whom the Award was granted.

(a) Each Award Agreement shall provide that no shares of Common Stock shall be purchased or sold thereunder unless and until (i) any then applicable requirements of state or federal laws and regulatory agencies have been fully complied with to the satisfaction of the Company and its counsel and (i) if required to do so by the Company, the Participant has executed and delivered to the Company a letter of investment intent in such form and containing such provisions as the Committee may require.

(b) Except as may otherwise be required by the Securities Act, the Company shall not be required to register under the Securities Act the Plan, any Award or any Option, Stock Appreciation Right, Restricted Stock, Restricted Stock Unit, or any Common Stock issued or issuable pursuant to any such Award, and the Company shall have no liability for any delay in issuing or failure to issue or sell any Option, Stock Appreciation Right, Common Stock, or Restricted Stock Unit prior to the date on which a registration statement under the Securities Act becomes effective with respect to the offer, sale, and issuance of such Award, Option, Stock Appreciation Right, Restricted Stock, Restricted Stock Unit, or Common Stock.

9. Use of Proceeds from Stock . Proceeds from the sale of Common Stock pursuant to Awards, or upon exercise thereof, shall constitute general funds of the Company.

10. Miscellaneous .

10.1 Acceleration of Exercisability and Vesting . The Board or Committee shall have the power to accelerate the time at which an Award may first be exercised or the time during which an Award or any part thereof will vest in accordance with the Plan, notwithstanding the provisions in the Award stating the time at which it may first be exercised or the time during which it will vest.

10.2 Shareholder Rights . Except as provided in the Plan or an Award Agreement, no Participant shall be deemed to be the holder of, or to have any of the rights of a holder with respect to, any shares of Common Stock subject to such Award unless and until such Participant has satisfied all requirements for exercise of the Award pursuant to its terms and no adjustment shall be made for dividends (ordinary or extraordinary, whether in cash, securities or other property) or distributions of other rights for which the record date is prior to the date such Common Stock certificate is issued, except as provided in Section 11 hereof.

10.3 No Employment or Other Service Rights . Nothing in the Plan or any instrument executed or Award granted pursuant thereto shall confer upon any Participant any right to continue to serve the Company in the capacity in effect at the time the Award was granted or shall affect the right of the Company to terminate (a) the employment of an Employee with or without notice and with or without Cause, except as may otherwise be provided in a written employment agreement between the Company and the Participant, or (b) the service of a Director pursuant to the By-laws of AgeX or an Subsidiary, and any applicable provisions of the corporate law of the state in which AgeX or the Subsidiary is incorporated, as the case may be.

10.4 Withholding Obligations . To the extent provided by the terms of an Award Agreement or as may be approved by the Board or Committee, a Participant may satisfy any federal, state or local tax withholding obligation relating to the exercise or acquisition of Common Stock under an Award by any of the following means (in addition to the Company’s right to withhold from any compensation paid to the Participant by the Company) or by a combination of such means: (a) tendering a cash payment; (b) authorizing the Company to withhold shares of Common Stock from the shares of Common Stock otherwise issuable to the Participant as a result of the exercise or acquisition of Common Stock under the Award, provided, however , that no shares of Common Stock are withheld with a value exceeding the minimum amount of tax required to be withheld by law; or (c) delivering to the Company previously owned and unencumbered shares of Common Stock.

11. Adjustments Upon Changes in Stock . In the event of changes in the outstanding Common Stock or in the capital structure of the Company by reason of any stock or extraordinary cash dividend, stock split, reverse stock split, an extraordinary corporate transaction such as any recapitalization, reorganization, merger, consolidation, combination, exchange, or other relevant change in capitalization occurring after the Grant Date of any Award, Awards granted under the Plan and any Award Agreements, including the exercise price of Options and Stock Appreciation Rights and the number of shares of Common Stock subject to such Options, Stock Appreciation Rights, or Stock Awards, the maximum number of shares of Common Stock subject to all Awards stated in Section 4 , and the maximum number of shares of Common Stock with respect to which any one person may be granted Awards during any period stated in Section 4 will be equitably adjusted or substituted, as to the number, price or kind of a share of Common Stock or other consideration subject to such Awards to the extent necessary to preserve the economic intent of such Award. In the case of adjustments made pursuant to this Section 11 , unless the Board or Committee specifically determines that such adjustment is in the best interests of the Company, Board or the Committee shall, in the case of Incentive Stock Options, ensure that any adjustments under this Section 11 will not constitute a modification, extension or renewal of the Incentive Stock Options within the meaning of Section 424(h)(3) of the Code and in the case of Non-qualified Stock Options, ensure that any adjustments under this Section 11 will not constitute a modification of such Non-qualified Stock Options within the meaning of Section 409A of the Code. Any adjustments made under this Section 11 shall be made in a manner which does not adversely affect the exemption provided pursuant to Rule 16b-3 under the Exchange Act. Further, with respect to Awards intended to qualify as “performance-based compensation” under Section 162(m) of the Code, any adjustments or substitutions will not cause the Company to be denied a tax deduction on account of Section 162(m) of the Code. The Company shall give each Participant notice of an adjustment hereunder and, upon notice, such adjustment shall be conclusive and binding for all purposes.

12. Effect of Change in Control .

12.1 In the discretion of the Board and the Committee, any Award Agreement may provide, or the Board or the Committee may provide by amendment of any Award Agreement or otherwise, notwithstanding any provision of the Plan to the contrary, that in the event of a Change in Control, Options and/or Stock Appreciation Rights shall become immediately exercisable with respect to all or a specified portion of the shares subject to such Options or Stock Appreciation Rights, and/or the Restricted Period shall expire immediately with respect to all or a specified portion of the shares of Restricted Stock or Restricted Stock Units.

12.2 In addition, in the event of a Change in Control, the Committee may in its discretion and upon at least 10 days’ advance notice to the affected persons, cancel any outstanding Awards and pay to the holders thereof, in cash or stock, or any combination thereof, the value of such Awards based upon the price per share of Common Stock received or to be received by other shareholders of the Company in the event. In the case of any Option or Stock Appreciation Right with an exercise price (or SAR Exercise Price in the case of a Stock Appreciation Right) that equals or exceeds the price paid for a share of Common Stock in connection with the Change in Control, the Committee may cancel the Option or Stock Appreciation Right without the payment of consideration therefor.

12.3 The obligations of the Company under the Plan shall be binding upon any successor corporation or organization resulting from the merger, consolidation or other reorganization of the Company, or upon any successor corporation or organization succeeding to all or substantially all of the assets and business of the Company and its Subsidiaries, taken as a whole.

13. Amendment of the Plan and Awards .

13.1 Amendment of Plan . The Board at any time, and from time to time, may amend or terminate the Plan. However, except as provided in Section 11 relating to adjustments upon changes in Common Stock, and Section 13.3 and Section 14.14 , no amendment shall be effective unless approved by the shareholders of the Company to the extent shareholder approval is necessary to satisfy any Applicable Laws. At the time of such amendment, the Board shall determine, upon advice from counsel, whether such amendment will be contingent on shareholder approval.

13.2 Shareholder Approval . The Board may, in its sole discretion, submit any amendment to the Plan or any Award for shareholder approval, including, but not limited submissions for shareholder approval intended to satisfy the requirements of Section 162(m) of the Code and the regulations thereunder regarding the exclusion of performance-based compensation from the limit on corporate deductibility of compensation paid to certain executive officers. If any Award is granted under the Plan prior to the date that the Plan has been approved by the shareholders of AgeX, such Award shall be contingent upon the approval of the Plan by the shareholders of AgeX. Further, the Board or Committee may make the payment of any Award contingent upon shareholder approval, for the purposes of compliance with Section 162(m) of the Code or otherwise.

13.3 No Impairment of Rights . Rights under any Award granted before amendment of the Plan shall not be impaired by any amendment of the Plan unless (a) the Company requests the consent of the Participant and the Participant consents in writing, or (b) the Award was granted subject to the terms of the amendment.

14. General Provisions .

14.1 Forfeiture Events . The Committee may specify in an Award Agreement that the Participant’s rights, payments and benefits with respect to an Award shall be subject to reduction, cancellation, forfeiture or recoupment upon the occurrence of certain events, in addition to applicable vesting conditions of an Award. Such events may include, without limitation, breach of non-competition, non-solicitation, confidentiality, or other restrictive covenants that are contained in the Award Agreement or otherwise applicable to the Participant, a termination of the Participant’s Continuous Service for Cause, or other conduct by the Participant that is detrimental to the business or reputation of the Company and/or its Subsidiaries.

14.2 Clawback . Notwithstanding any other provisions in this Plan, any Award which is subject to recovery under any law, government regulation or stock exchange listing requirement, will be subject to such deductions and clawback as may be required to be made pursuant to such law, government regulation or stock exchange listing requirement (or any policy adopted by the Company pursuant to any such law, government regulation or stock exchange listing requirement).

14.3 Other Compensation Arrangements . Nothing contained in this Plan shall prevent the Board or Committee from adopting other or additional compensation arrangements, subject to shareholder approval if such approval is required; and such arrangements may be either generally applicable or applicable only in specific cases.

14.4 Sub-plans . The Committee may from time to time establish sub-plans under the Plan for purposes of satisfying blue sky, securities, tax or other laws of various jurisdictions in which the Company intends to grant Awards. Any sub-plans shall contain such limitations and other terms and conditions as the Committee determines are necessary or desirable. All sub-plans shall be deemed a part of the Plan, but each sub-plan shall apply only to the Participants in the jurisdiction for which the sub-plan was designed.

14.5 Deferral of Awards . The Committee may establish one or more programs under the Plan to permit selected Participants the opportunity to elect to defer receipt of consideration upon exercise of an Award, satisfaction of performance criteria, or other event that absent the election would entitle the Participant to payment or receipt of shares of Common Stock or other consideration under an Award. The Committee may establish the election procedures, the timing of such elections, the mechanisms for payments of, and accrual of interest or other earnings, if any, on amounts, shares or other consideration so deferred, and such other terms, conditions, rules and procedures that the Committee deems advisable for the administration of any such deferral program.

14.6 Unfunded Plan . The Plan shall be unfunded. Neither the Company, the Board nor the Committee shall be required to establish any special or separate fund or to segregate any assets to assure the performance of its obligations under the Plan.

14.7 Recapitalizations . Each Award Agreement shall contain provisions required to reflect the provisions of Section 11 .

14.8 Delivery . Subject to Section 8 and Section 7.2(c) , upon exercise of an Option or Stock Appreciation Right or Restricted Stock Unit granted under this Plan, the Company shall issue Common Stock or pay any amounts due within a reasonable period of time thereafter. A period of 30 days shall be considered a reasonable period of time.

14.9 No Fractional Shares . No fractional shares of Common Stock shall be issued or delivered pursuant to the Plan. The Board or Committee shall determine whether cash, additional Awards or other securities or property shall be issued or paid in lieu of fractional shares of Common Stock or whether any fractional shares should be rounded down, forfeited, or otherwise eliminated.

14.10 Other Provisions . The Award Agreements authorized under the Plan may contain such other provisions not inconsistent with this Plan, including, without limitation, restrictions upon the exercise of the Awards, as the Committee may deem advisable.

14.11 Section 409A . The Plan is intended to comply with Section 409A of the Code to the extent subject thereto, and, accordingly, to the maximum extent permitted, the Plan shall be interpreted and administered to be in compliance therewith. Any payments described in the Plan that are due within the “short-term deferral period” as defined in Section 409A of the Code shall not be treated as deferred compensation unless Applicable Laws require otherwise. Notwithstanding anything to the contrary in the Plan, to the extent required to avoid accelerated taxation and tax penalties under Section 409A of the Code, amounts that would otherwise be payable and benefits that would otherwise be provided pursuant to the Plan during the six (6) month period immediately following the Participant’s termination of Continuous Service shall instead be paid on the first payroll date after the six-month anniversary of the Participant’s separation from service (or the Participant’s death, if earlier). Notwithstanding the foregoing, neither the Company nor the Committee shall have any obligation to take any action to prevent the assessment of any excise tax or penalty on any Participant under Section 409A of the Code and neither the Company nor the Committee will have any liability to any Participant for such tax or penalty.

14.12 Disqualifying Dispositions . Any Participant who shall make a “disposition” (as defined in Section 424 of the Code) of all or any portion of shares of Common Stock acquired upon exercise of an Incentive Stock Option within two years from the Grant Date of such Incentive Stock Option or within one year after the issuance of the shares of Common Stock acquired upon exercise of such Incentive Stock Option shall be required to immediately advise the Company in writing as to the occurrence of the sale and the price realized upon the sale of such shares of Common Stock.

14.13 Section 16 . It is the intent of the Company that the Plan satisfy, and be interpreted in a manner that satisfies, the applicable requirements of Rule 16b-3 as promulgated under Section 16 of the Exchange Act so that Participants will be entitled to the benefit of Rule 16b-3, or any other rule promulgated under Section 16 of the Exchange Act, and will not be subject to short-swing liability under Section 16 of the Exchange Act. Accordingly, if the operation of any provision of the Plan would conflict with the intent expressed in this Section 14.13 , such provision to the extent possible shall be interpreted and/or deemed amended so as to avoid such conflict.

14.14 Section 162(m) . To the extent the Committee issues any Award that is intended to be exempt from the deduction limitation of Section 162(m) of the Code, the Committee may, without shareholder or grantee approval, amend the Plan or the relevant Award Agreement retroactively or prospectively to the extent it determines necessary in order to comply with any subsequent clarification of Section 162(m) of the Code required to preserve the Company’s federal income tax deduction for compensation paid pursuant to any such Award.

14.15 Expenses . The costs of administering the Plan shall be paid by the Company.

14.16 Severability . If any of the provisions of the Plan or any Award Agreement is held to be invalid, illegal or unenforceable, whether in whole or in part, such provision shall be deemed modified to the extent, but only to the extent, of such invalidity, illegality or unenforceability and the remaining provisions shall not be affected thereby.

14.17 Plan Headings . The headings in the Plan are for purposes of convenience only and are not intended to define or limit the construction of the provisions hereof.

14.18 Non-Uniform Treatment . The determinations of the Board or Committee under the Plan need not be uniform and may be made selectively among persons who are eligible to receive, or actually receive, Awards. Without limiting the generality of the foregoing, the Board and Committee shall be entitled to make non-uniform and selective determinations, amendments and adjustments, and to enter into non-uniform and selective Award Agreements.

15. Effective Date of Plan . The Plan shall become effective as of the Effective Date, but no Award shall be exercised (or, in the case of a stock Award, shall be granted) unless and until the Plan has been approved by the shareholders of the Company, which approval shall be within twelve (12) months before or after the date the Plan is adopted by the Board.

16. Termination or Suspension of the Plan . The Plan shall terminate automatically on July 8, 2027 which is ten from the date the Plan was approved by the Company’s Board of Directors. No Award shall be granted pursuant to the Plan after such date, but Awards theretofore granted may extend beyond that date.

17. Effect of Dissolution, Merger or Other Reorganization. Upon the dissolution or liquidation of AgeX, or upon a reorganization, merger or consolidation of AgeX as a result of which the outstanding Common Stock or other securities of the class then subject to Awards are changed into or exchanged for cash or property or securities not of AgeX’s issue, or upon a sale of substantially all the property of AgeX to, or the acquisition of more than eighty percent (80%) of the Voting Securities of AgeX then outstanding by, another corporation or person, this Plan shall terminate, and all unexercised Awards theretofore granted hereunder shall terminate, unless provision can be made in writing in connection with such transaction for the continuance of the Plan and/or for the assumption of Awards theretofore granted, or the substitution for Awards options or other rights covering the shares of a successor corporation, or a parent or a subsidiary thereof, with appropriate adjustments as to the number and kind of shares and prices, in which event the Plan and Awards theretofore granted shall continue in the manner and under the terms so provided, subject to such adjustments. The grant of an Award pursuant to the Plan shall not affect in any way the right or power of AgeX or any Subsidiary or parent corporation to make adjustments, reclassifications, reorganizations or changes or its capital or business structure or to merge or to consolidate or to dissolve, liquidate or sell, or transfer all or any part of its business or assets.

18. Choice of Law . The law of the State of Delaware shall govern all questions concerning the construction, validity and interpretation of this Plan, without regard to such state’s conflict of law rules.

26 

[INCENTIVE*][NON-QUALIFIED**] STOCK OPTION AGREEMENT

THIS AGREEMENT made and entered into as of _______, 20XX, by and between AgeX Therapeutics, Inc., a Delaware corporation (the “Company”), and __________, an employee (the “Employee”) of the Company or of a subsidiary of the Company (hereinafter included within the term “Company”) within the meaning of Section 425(f) of the Internal Revenue Code of 1986, as amended (the “Code”),

W I T N E S S E T H

WHEREAS, the Company has adopted the AgeX Therapeutics, Inc. 2017 Equity Incentive Plan (the “Plan”), administered by the Company’s Board of Directors (the “Board”) or, in the discretion of the Board, by a committee (the “Committee”), providing for the granting to its employees or other individuals, stock options to purchase shares of the Company’s Common Stock, par value $0.0001 per share; and

[WHEREAS, the Plan provides for the grant of certain Options which are intended to be incentive stock Options within the meaning of Selection 422(b) of the Code; and*]

WHEREAS, the Employee is an officer or key employee who is in a position to make an important contribution to the long-term performance of the Company;

NOW, THEREFORE, in consideration of the foregoing and of the mutual covenants hereinafter set forth and other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the parties agree as follows:

1. Grant. The Company hereby grants to the Employee [an Incentive *] [a Non-qualified**] Stock Option (“Option”) to purchase _______ shares of Company Common Stock, par value $0.0001 per share (the “Shares”), at the price set forth in Section 2, on the terms and conditions hereinafter stated and subject to any limitations contained in the Plan.

2. Exercise Price. The purchase price per Share is _____ dollars and ______ cents ($_____) which was 100% of the Fair Market Value of Common Stock subject to the Option on the grant date as determined in accordance with the Plan.

3. Vesting . Unless otherwise terminated as provided by this Agreement, this Option will vest (and thereby become exercisable) as follows: [_____________].

The unvested portion of the Option shall not be exercisable.

4. Expiration . The Option shall expire on the earlier of (A) __________, 20__ or (B) the date on which the Option ceases to be exercisable pursuant to Section 6 or Section 7.

5. Adjustments in Shares and Purchase Price.

(a) In the event of changes in the outstanding Common Stock or in the capital structure of the Company by reason of any stock or extraordinary cash dividend, stock split, reverse stock split, an extraordinary corporate transaction such as any recapitalization, reorganization, merger, consolidation, combination, exchange, or other relevant change in capitalization occurring after the date of grant of this Option, the exercise price and the number of Shares subject to this Option will be equitably adjusted or substituted, as to the number, price or kind of a share of securities or other consideration to the extent necessary to preserve the economic intent of such Award, as determined by the Board or Committee.

(b) Upon the dissolution or liquidation of the Company, or upon a reorganization, merger, or consolidation of the Company as a result of which the outstanding securities of the class then subject to the Option hereunder are changed into or exchanged for cash or property or securities not of the Company’s issue, or upon a sale of substantially all the property of the Company to, or the acquisition of stock representing more than eighty percent (80%) of the voting power of the stock of the Company then outstanding by, another corporation or person, this Option shall terminate, unless provision is made in writing in connection with such transaction for the assumption of Options theretofore granted under the Plan, or the substitution of such Options by any stock options covering the stock of a successor corporation, or a parent or subsidiary thereof, with appropriate adjustments as to the number and kind of shares and prices, in which event this Option shall continue in the manner and under the terms so provided.

(c) To the extent that the foregoing adjustments relate to stock or securities of the Company or the exercise price of this Option, such adjustments shall be made by the Board or Committee, whose determination in that respect shall be final, binding and conclusive.

(d) The grant of this Option shall not affect in any way the right of power of the Company to make adjustments, reclassifications, reorganizations or changes of its capital or business structure or to merge or to consolidate or to dissolve, liquidate or sell, or transfer all or any part of its business or assets.

6. Effect of Termination of Employment . In the event of termination of the Employee’s Continuous Service for any reason other than his or her death or disability, this Option may not be exercised after the date three months following the date of termination of Employees Continuous Service, and may be exercisable only up to the amount vested on the date of termination. “Continuous Service” means that the Employee’s service with the Company, whether as an employee, consultant, or director, is not interrupted or terminated, as determined in accordance with the Plan.

7. Effect of Death or Disability . This Option shall be exercisable during the Employee’s lifetime only by the Employee and shall be nontransferable by the Employee otherwise than by will or the laws of descent and distribution.

(a) In the event the Employee’s Continuous Service terminates on account of the Employee’s disability, this Option may not be exercised after the earlier of (i) date 12 months following such termination, and (ii) the expiration of the term of this Option, and this Option shall be exercisable only up to the amount vested under Section 3 on the date of disability. Disability shall have the meaning ascribed to it under Section 22(e)(3) of the Code.

(b) In the event Employee’s Continuous Service terminates due to Employee’s death, or if Employee dies during the three month period following termination of Employee’s Continuous Service during which the Employee is permitted to exercise this Option pursuant to Section 6, this Option may be exercised by the executor or administrator of the Employee’s estate or any person who shall have acquired the Option from the Employee by his or her will or the applicable law of descent and distribution, during a period ending on the earlier of (i) 12 months following the date of death, and (ii) the expiration of the term of this Option, with respect to the number of Shares for which the deceased Employee would have been entitled to exercise at the time of his or her death, including the number of Shares that vested upon his death under Section 3, subject to adjustment under Section 5. Any such transferee exercising this Option must furnish the Company upon request of the Committee (i) written notice of his or her status as transferee, (ii) evidence satisfactory to the Company to establish the validity of the transfer of the Option in compliance with any laws of regulations pertaining to said transfer, and (iii) written acceptance of the terms and conditions of the Option as prescribed in this Agreement.

8. How to Exercise Option . This Option may be exercised by the person then entitled to do so as to any Share which may then be purchased by giving written notice of exercise to the Company, specifying the number of full Shares to be purchased and accompanied by full payment of the purchase price thereof and the amount of any income tax the Company is required by law to withhold by reason of such exercise. The Option Exercise Price of Shares acquired pursuant to an Option shall be paid, to the extent permitted by applicable statutes and regulations, either (a) in cash or by certified or bank check at the time the Option is exercised or (b) the Option Exercise Price may be paid: (i) by delivery to the Company of other Shares, duly endorsed for transfer to the Company, with a Fair Market Value on the date of delivery equal to the Option Exercise Price (or portion thereof) due for the number of shares being acquired (a “ Stock for Stock Exchange ”); (ii) a “cashless” exercise program established with a broker pursuant to which the broker exercises or arranges for the coordination of the exercise of the Option with the sale of some or all of the underlying Shares; (iii) any combination of the foregoing methods; or (iv) in any other form of consideration that is legal consideration for the issuance of Shares and that may be acceptable to the Board or Committee. The exercise price of Shares acquired pursuant to an Option that is paid by delivery to the Company of other Shares acquired, directly or indirectly from the Company, shall be paid only by Shares that have been held for more than six months (or such longer or shorter period of time required to avoid a charge to earnings for financial accounting purposes). Notwithstanding the foregoing, during any period for which the Company has any security registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or is required to file reports under Section 15(d) of the Exchange Act, or has filed a registration statement that has not yet become effective under the Securities Act of 1933, as amended, and that it has not withdrawn, if the Employee is a director or officer of the Company, any exercise that involves or may involve a direct or indirect extension of credit or arrangement of an extension of credit by the Company, directly or indirectly, in violation of Section 402(a) of the Sarbanes-Oxley Act of 2002 shall be prohibited.

9. No Rights as Shareholder Prior to Exercise . Neither the Employee nor any person claiming under or through the Employee shall be or have any of the rights or privileges of a shareholder of the Company in respect of any of the Shares issuable upon the exercise of the Option until the date of receipt of payment (including any amounts required by income tax withholding requirements) by the Company.

10. Notices . Any notice to be given to the Company under the terms of this Agreement shall be addressed to the Company at its principal executive office, or at such other address as the Company may hereafter designate in writing. Any notice to be given to the Employee shall be addressed to the Employee as the address set forth beneath his or her signature hereto, or at any such other address as the Employee may hereafter designate in writing. Any such notice shall be deemed to have been duly given three (3) days after being addressed as aforesaid and deposited in the United States mail, first class postage prepaid.

11. Restrictions on Transfer . Except as otherwise provided herein, the Option herein granted and the rights and privileges conferred hereby shall not be transferred, assigned, pledged or hypothecated in any way (whether by operation of law or otherwise) and shall not be subject to sale under execution attachment or similar process upon the rights and privileges conferred hereby. Any transfer, assignment, pledge or other disposal of said Option, or of any right or privilege conferred hereby, contrary to the provisions hereof, or any sale under any execution, attachment or similar process upon the rights and privileges conferred hereby, shall immediately be null and void and shall not vest in any purported assignee or transferee any rights or privileges of the optionee, under this Agreement or otherwise with respect to such Option. Notwithstanding the preceding two sentences, in conjunction with the exercise of an Option, and for the purpose of obtaining financing for such exercise, the Option holder may arrange for a securities broker/dealer to exercise an Option on the Option holder’s behalf, to the extent necessary to obtain funds required to pay the exercise price of the Option.

12. Successor and Assigns . Subject to the limitations on transferability contained herein, this Agreement shall be binding upon and inure to the benefit of the heirs, legal representatives, successors, and assigns of the parties hereto.

13. Additional Restrictions . The rights awarded hereby are subject to the requirement that, if at any time the Board or the Committee shall determine, in its discretion, that the listing, registration or qualification of the Shares subject to such rights upon any securities exchange or under any state or federal law, or the consent or approval of any government regulatory body, is necessary or desirable as a condition of, or in connection with, the granting of such rights or the issuance or purchase of Shares in connection with the exercise of such rights, then such rights may not be exercised in whole or in part unless such listing, registration, qualification, consent or approval shall have been affected or obtained free of any conditions not acceptable to the Board or the Committee. Furthermore, if the Board or Committee determines that amendment to any Option (including but not limited to the increase in the exercise price) is necessary or desirable in connection with the registration or qualification of any Shares or other securities under the securities or “blue sky” laws of any state, then the Board or Committee shall have the unilateral right to make such changes without the consent of the Employee.

[14. Notice of Sale or Other Disposition of Shares . In the event the Employee disposes of any of the Shares that may be acquired hereunder at any time within two years of the date hereof or one year from the date the Shares were acquired, the Employee agrees to notify the Company in writing within ten days of the date of such disposition, of the number of Shares disposed of, the nature of the transaction, and the amount received (if any) upon such disposition. Employee understands that such a disposition may result in imposition of withholding taxes, and agrees to remit to the Company on request any amounts requested to satisfy any withholding tax liability.*]

15. Terms of Employment . Subject to any employment contract with the Employee, the terms of employment of the Employee shall be determined from time to time by the Company and the Company shall have the right, which is hereby expressly reserved, to terminate the Employee or change the terms of the employment at any time for any reason whatsoever, with or without good cause. The Employee agrees to notify in writing the Corporate Secretary of the Company of the Employee’s intention, if any, to terminate Employee’s employment within ten days after said intention is formed.

16. Payment of Taxes . Whenever Shares are to be issued to the Employee in satisfaction of the rights conferred hereby, the Company shall have the right to require the Employee to remit to the Company an amount sufficient to satisfy federal, state and local withholding tax requirements prior to the delivery of any certificate or certificates for such Shares.

17. Terms and Conditions of Plan. This Agreement is subject to, and the Company and the Employee agree to be bound by, all of the terms and conditions of the Plan, as the same shall have been amended from time to time in accordance with the terms thereof, provided that no such amendment shall deprive the Employee, without his or her consent, of any of his or her rights hereunder, except as otherwise provided in this Agreement or in the Plan. The Shares acquired hereunder may also be subject to restrictions on transfer and/or rights of repurchase that may be contained in the Bylaws of the Company or in separate agreements with Employee. The Board or the Committee shall have the power to interpret the Plan and this Agreement and to adopt such rules for the administration, interpretation and application of the Plan as are consistent therewith and to interpret or revoke any such rules. All actions taken and all interpretations and determinations made by the Board or the Committee in good faith shall be final and binding upon Employee, the Company and all other interested persons. No member of the Board or the Committee shall be personally liable for any action, determination or interpretation made in good faith with respect to the Plan or this Agreement. Capitalized terms not otherwise defined in this Agreement shall have meaning ascribed to such terms in the Plan.

18. Severability . In the event that any provision in this Agreement shall be invalid or unenforceable, such provision shall be severable from, and such invalidity or unenforceability shall not be construed to have any effect on the remaining provisions of this Agreement.

19. Governing Law . This Agreement shall be governed by and construed under the laws of the state of Delaware, without regard to conflicts of law provisions.

IN WITNESS HEREOF, the parties hereto have executed this Agreement, as of the day and year first above written.

COMPANY:

*Include if the Option is an Incentive Stock Option

**Include if the Option is a Non-qualified Stock Option

7

STOCK OPTION AGREEMENT

(Director)

THIS AGREEMENT made and entered into as of ______, 20___, by and between AgeX Therapeutics, Inc., a Delaware corporation (the “Company”), and _________, a director (the “Optionee”) of the Company or of a subsidiary of the Company (hereinafter included within the term “Company”) within the meaning of Section 425(f) of the Internal Revenue Code of 1986, as amended (the “Code”),

W I T N E S S E T H

WHEREAS, the Company has adopted the AgeX Therapeutics, Inc. 2017 Equity Incentive Plan (the “Plan”), administered by the Company’s Board of Directors (the “Board”) or, in the discretion of the Board, by a committee (the “Committee”), providing for the granting to its employees or other individuals, stock options to purchase the Company’s common stock, par value $0.0001 per share; and

WHEREAS, the Plan provides for the grant of certain options which are not intended to be incentive stock options within the meaning of Section 422(b) of the Code (“nonqualified stock options” or “options”); and

WHEREAS, the Optionee is a director, who is in a position to make an important contribution to the long-term performance of the Company;

NOW, THEREFORE, in consideration of the foregoing and of the mutual covenants hereinafter set forth and other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the parties agree as follows:

1. Grant. The Company hereby grants to the Optionee a stock option to purchase _____ shares of common stock, par value $0.0001 per share (the “Shares”), at the price set forth in Section 2, on the terms and conditions hereinafter stated and subject to any limitations contained in the Plan.

2. Exercise Price. The purchase price per Share is _____ ($______) which was the last closing price of the Company’s common stock on the date of this grant (___, 20__) and 100% of the fair market value of the common stock subject to the option on the grant date.

3. Expiration. This option is not exercisable after 5:00 p.m. California time on _________, 20__.

4. Adjustments in Shares and Purchase Price.

(a) In the event of changes in the outstanding common shares or in the capital structure of the Company by reason of any stock or extraordinary cash dividend, stock split, reverse stock split, an extraordinary corporate transaction such as any recapitalization, reorganization, merger, consolidation, combination, exchange, or other relevant change in capitalization occurring after the date of grant of this option, the exercise price and the number of Shares subject to this option will be equitably adjusted or substituted, as to the number, price or kind of a share of securities or other consideration to the extent necessary to preserve the economic intent of such Award, as determined by the Board or Committee.

(b) Upon the dissolution or liquidation of the Company, or upon a reorganization, merger, or consolidation of the Company as a result of which the outstanding securities of the class then subject to options hereunder are changed into or exchanged for cash or property or securities not of the Company’s issue, or upon a sale of substantially all the property of the Company to, or the acquisition of stock representing more than eighty percent (80%) of the voting power of the stock of the Company then outstanding by, another corporation or person, this option shall terminate, unless provision is made in writing in connection with such transaction for the assumption of options theretofore granted under the Plan, or the substitution of such options by any options covering the stock of a successor corporation, or a parent or subsidiary thereof, with appropriate adjustments as to the number and kind of shares and prices, in which event this option shall continue in the manner and under the terms so provided.

(c) To the extent that the foregoing adjustments relate to stock or securities of the Company or the exercise price of this option, such adjustments shall be made by the Board or Committee, whose determination in that respect shall be final, binding and conclusive.

(d) The grant of this option shall not affect in any way the right of power of the Company to make adjustments, reclassifications, reorganizations or changes of its capital or business structure or to merge or to consolidate or to dissolve, liquidate or sell, or transfer all or any part of its business or assets.

5. Partial Exercise. No partial exercise of this option will be permitted for fewer than one hundred (100) shares.

6. Restrictions on Transfer and Exercise.

(a) This option shall be exercisable during the Optionee’s lifetime only by the Optionee and shall be nontransferable by the Optionee otherwise than by will or the laws of descent and distribution or through a property settlement upon dissolution of marriage.

(b) Except as otherwise provided herein, the option herein granted and the rights and privileges conferred hereby shall not be transferred, assigned, pledged or hypothecated in any way (whether by operation of law or otherwise) and shall not be subject to sale under execution attachment or similar process upon the rights and privileges conferred hereby. Upon any attempt to transfer, assign, pledge or otherwise dispose of said option, or of any right or privilege conferred hereby, contrary to the provisions hereof, or upon any attempted sale under any execution, attachment or similar process upon the rights and privileges conferred hereby, said option and the rights and privileges conferred hereby shall immediately become null and void.

(c) Subject to the limitations on transferability contained herein, this Agreement shall be binding upon and inure to the benefit of the heirs, legal representatives, successors and assigns of the parties hereto.

7. Death of Optionee. In the event of the Optionee’s death while this option is exercisable, this option may be exercised by the executor or administrator of the Optionee’s estate or any person who shall have acquired the option from the Optionee by his or her will or the applicable law of descent and distribution, during a period ending on the earlier of (i) 12 months following the date of death, and (ii) the expiration of the term of this option, with respect to the number of Shares for which the deceased Optionee would have been entitled to exercise at the time of his or her death, including the number of Shares that were vested upon his death under Section 8, subject to adjustment under Section 4. Any such transferee exercising this option must furnish the Company upon request of the Committee (a) written notice of his or her status as transferee, (b) evidence satisfactory to the Company to establish the validity of the transfer of the option in compliance with any laws of regulations pertaining to said transfer, and (c) written acceptance of the terms and conditions of the option as prescribed in this Agreement.

8. Exercise of Option.

(a) This option will not be exercisable except to the extent it has vested. The option will vest, and thereby become exercisable, on the dates shown in the following table (each such date being referred to as a “Vesting Date”):

(b) This option shall vest on the designated Vesting Date only if Optionee is still serving as a non-employee director of the Company on the Vesting Date.

(c) This option may be exercised by the person then entitled to do so as to any Shares which may then be purchased by giving written notice of exercise to the Company, specifying the number of full Shares to be purchased and accompanied by full payment of the purchase price thereof and the amount of any income tax the Company is required by law to withhold by reason of such exercise. The Option Exercise Price of Shares acquired pursuant to an Option shall be paid, to the extent permitted by applicable statutes and regulations, either (a) in cash or by certified or bank check at the time the Option is exercised or (b) the Option Exercise Price may be paid: (i) through a “cashless” exercise program established with a broker pursuant to which the broker exercises or arranges for the coordination of the exercise of the Option with the sale of some or all of the underlying Shares; or (ii) in any other form of consideration that is legal consideration for the issuance of Shares and that may be acceptable to the Board or Committee. Notwithstanding the foregoing, during any period for which the Company has any security registered under Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or is required to file reports under Section 15(d) of the Exchange Act, or has filed a registration statement that has not yet become effective under the Securities Act of 1933, as amended, and that it has not withdrawn, if the Optionee is a director or officer of the Company, any exercise that involves or may involve a direct or indirect extension of credit or arrangement of an extension of credit by the Company, directly or indirectly, in violation of Section 402(a) of the Sarbanes-Oxley Act of 2002 shall be prohibited.

9. No Rights as Shareholder Prior to Exercise . Neither the Optionee nor any person claiming under or through the Optionee shall be or have any of the rights or privileges of a shareholder of the Company in respect to any of the Shares issuable upon the exercise of the option until the date of receipt of payment (including any amounts required by income tax withholding requirements) by the Company.

10. Notices . Any notice to be given to the Company under the terms of this Agreement shall be addressed to the Company at its principal executive office, or at such other address as the Company may hereafter designate in writing. Any notice to be given to the Optionee shall be addressed to the Optionee as the address set forth beneath his or her signature hereto, or at any such other address as the Optionee may hereafter designate in writing. Any such notice shall be deemed to have been duly given three (3) days after being addressed as aforesaid and deposited in the United States mail, first class postage prepaid.

11. Restrictions on Transfer . Except as otherwise provided herein, the option herein granted and the rights and privileges conferred hereby shall not be transferred, assigned, pledged or hypothecated in any way (whether by operation of law or otherwise) and shall not be subject to sale under execution attachment or similar process upon the rights and privileges conferred hereby. Any transfer, assignment, pledge or other disposal of said option, or of any right or privilege conferred hereby, contrary to the provisions hereof, or any sale under any execution, attachment or similar process upon the rights and privileges conferred hereby, shall immediately be null and void and shall not vest in any purported assignee or transferee any rights or privileges of the Optionee, under this Agreement or otherwise with respect to such options. Notwithstanding the preceding two sentences, in conjunction with the exercise of an option, and for the purpose of obtaining financing for such exercise, the option holder may arrange for a securities broker/dealer to exercise an option on the option holder’s behalf, to the extent necessary to obtain funds required to pay the exercise price of the option.

12. Successor and Assigns . Subject to the limitations on transferability contained herein, this Agreement shall be binding upon and inure to the benefit of the heirs, legal representatives, successors, and assigns of the parties hereto.

13. Additional Restrictions . The rights awarded hereby are subject to the requirement that, if at any time the Board or the Committee shall determine, in its discretion, that the listing, registration or qualification of the Shares subject to such rights upon any securities exchange or under any state or federal law, or the consent or approval of any government regulatory body, is necessary or desirable as a condition of, or in connection with, the granting of such rights or the issuance or purchase of Shares in connection with the exercise of such rights, then such rights may not be exercised in whole or in part unless such listing, registration, qualification, consent or approval shall have been affected or obtained free of any conditions not acceptable to the Board or the Committee. Furthermore, if the Board or Committee determines that amendment to any stock option (including but not limited to the increase in the exercise price) is necessary or desirable in connection with the registration or qualification of any Shares or other securities under the securities or “blue sky” laws of any state, then the Board or Committee shall have the unilateral right to make such changes without the consent of the Optionee.

14. Payment of Taxes . Whenever Shares are to be issued to the Optionee in satisfaction of the rights conferred hereby, the Company shall have the right to require the Optionee to remit to the Company an amount sufficient to satisfy federal, state and local withholding tax requirements prior to the delivery of any certificate or certificates for such Shares.

15. Terms and Conditions of Plan. This Agreement is subject to, and the Company and the Optionee agree to be bound by, all of the terms and conditions of the Plan, as the same shall have been amended from time to time in accordance with the terms thereof, provided that no such amendment shall deprive the Optionee, without his or her consent, of any of his or her rights hereunder, except as otherwise provided in this Agreement or in the Plan. The Shares acquired hereunder may also be subject to restrictions on transfer and/or rights of repurchase that may be contained in the Bylaws of the Company or in separate agreements with Optionee. The Board or the Committee shall have the power to interpret the Plan and this Agreement and to adopt such rules for the administration, interpretation and application of the Plan as are consistent therewith and to interpret or revoke any such rules. All actions taken and all interpretations and determinations made by the Board or the Committee in good faith shall be final and binding upon Optionee, the Company and all other interested persons. No member of the Board or the Committee shall be personally liable for any action, determination or interpretation made in good faith with respect to the Plan or this Agreement.

16. Severability . In the event that any provision in this Agreement shall be invalid or unenforceable, such provision shall be severable from, and such invalidity or unenforceability shall not be construed to have any effect on the remaining provisions of this Agreement.

17. Governing Law . This Agreement shall be governed by and construed under the laws of the state of Delaware, without regard to conflicts of law provisions.

IN WITNESS HEREOF, the parties hereto have executed this Agreement, as of the day and year first above written.

COMPANY:

6

RESTRICTED STOCK AGREEMENT

THIS AGREEMENT (“ Agreement ”) made and entered into as of ___________, 2016 (the “ Grant Date ”), by and between AgeX Therapeutics, Inc., a Delaware corporation (the “ Company ”), and _____________, an employee (the “ Employee ”) of the Company.

W   I   T   N   E   S   S   E   T   H

WHEREAS, the Company has adopted the AgeX Therapeutics, Inc. 2017 Equity Incentive Plan (the “ Plan ”), administered by the Company’s Board of Directors (the “ Board ”) or, in the discretion of the Board, by a committee (the “ Committee ”), providing for the granting to its employees or other individuals, shares of Company common stock, par value $0.0001 per share, as “ Restricted Stock ”; and

WHEREAS, the Employee is an officer who is in a position to make an important contribution to the long-term performance of the Company;

NOW, THEREFORE, in consideration of the foregoing and of the mutual covenants set forth in this Agreement and other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the parties agree as follows:

1. Grant. The Company hereby grants to the Employee [_________] shares of Company common stock, par value $0.0001 per share, as Restricted Stock as defined in the Plan (the “ Shares ”).

2. Restrictions and Forfeiture. Until vested as provided in this Agreement, the following restrictions on transfer and forfeiture provisions (the “ Restrictions ”) shall apply to the Shares:

(a) The unvested Shares may not be sold, assigned, transferred, pledged, or hypothecated, in whole or in part, voluntarily or involuntarily or by operation of law, and shall not be subject to sale under execution, attachment or similar process. Any sale, transfer, assignment, pledge, hypothecation, or other disposal of any unvested Shares, or of any right or privilege conferred hereby, contrary to the provisions of this Agreement, or any sale under any execution, attachment or similar process upon the unvested Shares, shall immediately be null and void and shall not vest in any purported assignee or transferee any rights or privileges of the Employee in the unvested Shares or as a holder of the unvested Shares or otherwise with respect to such unvested Shares.

(b) In the event of termination of the Employee’s Continuous Service (as defined below) for any reason, all of the Employee’s right, title and interest in and to the unvested Shares shall terminate, and title to the unvested Shares shall automatically revert to the Company. If the Shares are then evidenced by a stock certificate, the Employee or his executor, administrator, or other personal representative shall surrender such certificate to the Company for cancellation or transfer to the Company, with such signatures, endorsements, and signature guarantees as the Company may require, and the Company shall issue to the Employee or his executor, administrator, or other personal representative a new certificate evidencing only the Shares vested as of the date of termination of the Employee’s Continuous Service. If the Company rather than the Employee holds a certificate evidencing Shares, or if the Shares were issued by book entry, then following the termination of the Employee’s Continuous Service, the Company shall cancel or shall cause the transfer agent and registrar of the Shares to cancel such certificate or book entry and shall issue to the Employee or his executor, administrator, or other personal representative a certificate evidencing only the Shares vested as of the date of termination of the Employee’s Continuous Service. “Continuous Service” means that the Employee’s service with the Company (as defined below), whether as an employee, consultant, or director, is not interrupted or terminated, as determined in accordance with the Plan.

3. Vesting .

(a) _________ percent (____%) of the granted Shares, or [_____] Shares, shall vest (and thereby become free of the Restrictions) as follows: [________________________]. All vesting will depend on the Employee’s Continuous Service through the applicable vesting date.

(b) In the event that (i) the Company terminates Employee’s employment without “Cause”, or (ii) any successor in interest to the Company that has assumed the Company’s obligations terminates the Employee’s employment without “Cause” within twelve (12) months following a “Change in Control”, the Restrictions on one hundred percent (100%) of the then unvested Shares shall lapse and such Shares shall be vested. The terms “Cause,” “Change in Control,” and “Related Company” shall have the meanings ascribed to such terms in the Employee’s Employment Agreement dated [____________].

(b) The Board or Committee shall have the power to accelerate the time at which any Shares will vest in accordance with the Plan, notwithstanding the provisions in this Agreement stating the time at which Shares will vest.

4. Reserved.

5. Adjustments in Shares.

(a) In the event of changes in the outstanding common stock or in the capital structure of the Company by reason of any stock split, reverse stock split, an extraordinary corporate transaction such as any recapitalization, reorganization, merger, consolidation, combination, exchange, or other relevant change in capitalization occurring after the Grant Date, the Shares will be equitably adjusted or substituted, as to the number, price or kind of a share of common stock or other consideration to the extent necessary to preserve the economic intent of the Company’s Share grants.

(b) The foregoing adjustments under this Section 5 shall be made by the Board or Committee, whose determination in that respect shall be final, binding and conclusive.

(c) The grant of Shares shall not affect in any way the right of power of the Company to make adjustments, reclassifications, reorganizations or changes of its capital or business structure or to merge or to consolidate or to dissolve, liquidate or sell, or transfer all or any part of its business or assets.

6. Voting Rights, Dividends and Distributions. Subject to the Restrictions set forth in this Agreement, the Employee generally shall have the rights and privileges of a shareholder as to the Shares, including the right to vote the Shares and the right to receive dividends, if any, on account of the Shares; provided that, any cash dividends and stock dividends with respect to any Shares that have not then vested shall be withheld by the Company for the Employee’s account. No interest shall accrue or be credited on account of any cash dividends withheld by the Company under this Agreement. The cash dividends or stock dividends so withheld and attributable to any Shares shall be distributed to the Employee in cash or, at the discretion of the Board or Committee, in shares of Common Stock having a Fair Market Value (determined in accordance with the Plan) equal to the amount of such dividends upon the vesting of, and release of the Restrictions on, such Shares. If any Shares are forfeited, the Employee shall have no right to the dividends withheld by the Company on account of such forfeited Shares.

7. Notices . Any notice to be given to the Company under the terms of this Agreement shall be addressed to the Company at its principal executive office, or at such other address as the Company may hereafter designate in writing. Any notice to be given to the Employee shall be addressed to the Employee at the most current address of the Employee then reflected in the Company’s records. Any such notice shall be deemed to have been duly given three (3) days after being addressed as aforesaid and deposited in the United States mail, first class postage prepaid.

8. Legends. Until vested, each certificate representing Shares shall, in addition to any other legends as may be required by law or by the Board or the Committee, bear a legend to the following effect:

THESE SHARES MAY BE TRANSFERRED ONLY IN ACCORDANCE WITH THE TERMS OF AN AGREEMENT BETWEEN THE COMPANY AND THE SHAREHOLDER, A COPY OF WHICH IS ON FILE WITH THE SECRETARY OF THE COMPANY

9. Successor and Assigns . Subject to the limitations on transferability contained herein, this Agreement shall be binding upon and inure to the benefit of the heirs, legal representatives, successors, and assigns of the parties hereto.

10. Securities Law Compliance .

(a) The rights awarded hereby are subject to the requirement that, if at any time the Board or the Committee shall determine, in its discretion, that the listing, registration or qualification of the Shares upon any securities exchange or under any state or federal law, or the consent or approval of any government regulatory body, is necessary or desirable as a condition of, or in connection with, the granting of the award of the Shares or the issuance of the Shares, then the issuance of the Shares shall be subject to the condition that such listing, registration, qualification, consent or approval shall have been affected or obtained free of any conditions not acceptable to the Board or the Committee. Furthermore, if the Board or Committee determines that amendment to the terms of the Award of Restricted Stock under this Agreement is necessary or desirable in connection with the registration or qualification of any capital stock of the Company or other securities under the securities or “blue sky” laws of any state, then the Board or Committee shall have the unilateral right to make such changes without the consent of the Employee.

(b) No Shares shall be issued unless and until (i) any then applicable requirements of state or federal laws and regulatory agencies have been fully complied with to the satisfaction of the Company and its counsel and (ii) if required to do so by the Company, the Employee has executed and delivered to the Company a letter of investment intent in such form and containing such provisions as the Committee may require.

(c) Except as may otherwise be required by the Securities Act of 1933, as amended (the “ Securities Act ”), the Company shall not be required to register any of the Shares under the Securities Act, and the Company shall have no liability for any delay in issuing or failure to issue or transfer any Shares prior to the date on which a registration statement under the Securities Act becomes effective with respect to the issuance or transfer of such Shares.

11. Terms of Employment . Nothing in the Plan or this Agreement shall confer upon the Employee any right to continue to serve the Company in the capacity in effect at the time the Shares were granted or shall affect the right of the Company to terminate the employment of the Employee with or without notice and with or without Cause, except as may otherwise be provided in a written employment agreement between the Company and the Employee.

12. Payment of Taxes . Whenever Shares are to be issued to the Employee in satisfaction of the rights conferred hereby, the Company shall have the right to require the Employee to remit to the Company an amount sufficient to satisfy federal, state and local withholding tax requirements prior to the delivery of any certificate or certificates for such Shares.

13. Terms and Conditions of Plan. This Agreement is subject to, and the Company and the Employee agree to be bound by, all of the terms and conditions of the Plan, as the same shall have been amended from time to time in accordance with the terms thereof, provided that no such amendment shall deprive the Employee, without his or her consent, of any of his or her rights hereunder, except as otherwise provided in this Agreement or in the Plan. The Shares acquired hereunder may also be subject to restrictions on transfer and/or rights of repurchase that may be contained in the Bylaws of the Company or in separate agreements with the Employee. The Board or the Committee shall have the power to interpret the Plan and this Agreement and to adopt such rules for the administration, interpretation and application of the Plan as are consistent therewith and to interpret or revoke any such rules. All actions taken and all interpretations and determinations made by the Board or the Committee in good faith shall be final and binding upon the Employee, the Company and all other interested persons. No member of the Board or the Committee shall be personally liable for any action, determination or interpretation made in good faith with respect to the Plan or this Agreement.

14. Severability . In the event that any provision in this Agreement shall be invalid or unenforceable, such provision shall be severable from, and such invalidity or unenforceability shall not be construed to have any effect on the remaining provisions of this Agreement.

15. Governing Law . This Agreement shall be governed by and construed under the laws of the state of Delaware, without regard to conflicts of law provisions.

[Signature page follows.]

IN WITNESS HEREOF, the parties hereto have executed this Agreement, as of the day and year first above written.

6

Restricted Stock Agreement

AGEX THERAPEUTICS, INC.

2017 Equity Incentive Plan

Restricted Stock Units Award Agreement

This Restricted Stock Units Award Agreement (the “Award Agreement”) memorializes the grant on ____________ (the “Grant Date”) by AGEX THERAPEUTICS, INC. (the “Company”) to _______________ (“Participant”) of the number of Restricted Stock Units (the “Units”) indicated below under the Company’s 2017 Equity Incentive Plan (the “Plan”), including rights to Dividend Equivalents thereon. Each Unit granted hereunder represents a right to receive one share of common stock, par value $0.0001 per share, of the Company (“Common Stock”).

(a) Binding Agreement; Written Amendments . This Award Agreement shall be binding upon the heirs, executors, administrators and successors of the parties. This Award Agreement constitutes the entire agreement between the parties with respect to the Units, and supersedes any prior agreements or documents with respect to the Units. No amendment or alteration of this Award Agreement which may impose any additional obligation upon the Company shall be valid unless expressed in a written instrument duly executed in the name of the Company, and no amendment, alteration, suspension or termination of this Award Agreement which may materially impair the rights of the Participant with respect to the Units shall be valid unless expressed in a written instrument executed by the Participant.

(b) No Promise of Service. The Units granted hereunder shall not constitute or be evidence of any agreement or understanding, express or implied, that the Participant has a right to continue as an Employee, Consultant or Director of the Company for any period of time, or at any particular rate of compensation.

(c) Governing Law . The validity, construction, and effect of this Agreement shall be determined in accordance with the laws (including those governing contracts) of the state of Delaware, without giving effect to principles of conflicts of laws, and applicable federal law.

(d) Unfunded Obligations . The grant of the Units and any provision for distribution in settlement of the Participant’s Account hereunder shall be by means of bookkeeping entries on the books of the Company and shall not create in the Participant any right to, or claim against any, specific assets of the Company, nor result in the creation of any trust or escrow account for the Participant. With respect to the Participant’s entitlement to any distribution hereunder, the Participant shall be a general creditor of the Company.

(e) Shareholder Rights. Neither the Participant nor any beneficiary of the Participant shall have any rights with respect to shares of Common Stock (including voting rights) covered by this Award Agreement prior to the distribution of shares of Common Stock in settlement of vested Units in the accordance with the terms of this Agreement.

IN WITNESS WHEREOF , the Company and the Participant have entered into this Award Agreement.

3