WHERE YOU CAN FIND MORE INFORMATION

We have filed with the SEC a registration statement on Form S-3 under the Securities Act, with respect to the securities covered by this prospectus. This prospectus, which is a part of the registration statement, does not contain all of the information set forth in the registration statement or the exhibits and schedules filed therewith. For further information with respect to us and the securities covered by this prospectus, please see the registration statement and the exhibits filed with the registration statement. A copy of the registration statement and the exhibits filed with the registration statement may be inspected without charge at the Public Reference Room maintained by the SEC, located at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for more information about the operation of the Public Reference Room. The SEC also maintains an Internet website that contains reports, proxy and information statements and other information regarding registrants that file electronically with the SEC. The address of the website is http://www.sec.gov.

We are subject to the information and periodic reporting requirements of the Exchange Act and, in accordance therewith, we file periodic reports, proxy statements and other information with the SEC. Such periodic reports, proxy statements and other information are available for inspection and copying at the Public Reference Room and website of the SEC referred to above. We maintain a website at http://www.vbivaccines.com. You may access our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to those reports filed pursuant to Sections 13(a) or 15(d) of the Exchange Act with the SEC free of charge at our website as soon as reasonably practicable after such material is electronically filed with, or furnished to, the SEC. Our website and the information contained on that site, or connected to that site, are not incorporated into and are not a part of this prospectus.

INFORMATION INCORPORATED BY REFERENCE

The SEC and applicable law permits us to “incorporate by reference” into this prospectus information that we have or may in the future file with or furnish to the SEC. This means that we can disclose important information by referring you to those documents. You should read carefully the information incorporated herein by reference because it is an important part of this prospectus. We hereby incorporate by reference the following documents into this prospectus:

Additionally, all documents filed by us with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act (other than any portions of filings that are furnished rather than filed pursuant to Items 2.02 and 7.01 of a Current Report on Form 8-K), after the date of this prospectus and before the termination or completion of this offering (including all such documents filed with the SEC after the date of the initial registration statement and prior to the effectiveness of the registration statement) shall be deemed to be incorporated by reference into this prospectus from the respective dates of filing of such documents. Any information that we subsequently file with the SEC that is incorporated by reference as described above will automatically update and supersede any previous information that is part of this prospectus.

Upon written or oral request, we will provide you without charge, a copy of any or all of the documents incorporated by reference, other than exhibits to those documents unless the exhibits are specifically incorporated by reference in the documents. Please send requests to VBI Vaccines Inc., 222 Third Street, Suite 2241, Cambridge, MA 02142 Attn: Chief Financial Officer, (617) 830-3031 x123.

$150,000,000

Common Shares

Warrants

Units

Subscription Rights

Prospectus

, 2017

The information in this prospectus is not complete and may be changed. We may not sell these securities until the Securities and Exchange Commission declares our registration statement effective. This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

PROSPECTUS (Subject to Completion)

Dated May 15, 2017

Up to $30,000,000 of Common Shares

We have entered into an equity distribution agreement with Canaccord Genuity Inc. relating to our common shares offered by this prospectus. In accordance with the terms of the equity distribution agreement, under this prospectus we may offer and sell our common shares, no par value, having an aggregate offering price of up to $30,000,000 from time to time through Canaccord Genuity Inc., acting as sales agent.

Our common shares are listed on The NASDAQ Capital Market and the Toronto Stock Exchange under the symbol “VBIV” and “VBV,” respectively. On May 10, 2017, the last reported sale price of our common shares on The NASDAQ Capital Market was $4.12 per share.

Sales of our common shares, if any, under this prospectus may be made in sales deemed to be “at-the-market” equity offerings as defined in Rule 415 promulgated under the Securities Act of 1933, as amended (the “Securities Act”), including sales made directly on or through The NASDAQ Capital Market, the primary trading market for our common shares, sales made to or through a market maker other than on an exchange or otherwise, in negotiated transactions at market prices prevailing at the time of sale or at prices related to such prevailing market prices, and/or any other method permitted by law, including in privately negotiated transactions. While there is no requirement that Canaccord Genuity Inc. sell any specific number or dollar amount of securities, it will act as sales agent on a best efforts basis and use commercially reasonable efforts to sell on our behalf all of the common shares requested to be sold by us, consistent with its normal trading and sales practices, on mutually agreed terms between Canaccord Genuity Inc. and us. There is no arrangement for funds to be received in any escrow, trust or similar arrangement.

Canaccord Genuity Inc. will be entitled to compensation at a fixed commission rate of 3.0% of the gross sales price per share sold. In connection with the sale of our common shares on our behalf, Canaccord Genuity Inc. will be deemed to be an “underwriter” within the meaning of the Securities Act and the compensation of Canaccord Genuity Inc. will be deemed to be underwriting commissions or discounts.

An investment in our common shares involves a high degree of risk. See “Risk Factors” on page S-10 of this prospectus for more information on these risks.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities, or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is                , 2017.

TABLE OF CONTENTS

ABOUT THIS PROSPECTUS

This prospectus relates to the offering of our common shares. Before buying any of the common shares that we are offering, we urge you to carefully read this prospectus, together with the information incorporated by reference as described under the heading “Where You Can Find More Information” and “Information Incorporated by Reference.” This equity distribution agreement prospectus is deemed a prospectus supplement to the base prospectus contained in the registration statement of which this prospectus forms a part. These documents contain important information that you should consider when making your investment decision.

This prospectus describes the specific terms of the common shares we are offering and also adds to and updates information contained in the documents incorporated by reference into this prospectus. To the extent there is a conflict between the information contained in this prospectus, on the one hand, and the information contained in any document incorporated by reference in this prospectus, on the other hand, you should rely on the information in this prospectus. If any statement in one of these documents is inconsistent with a statement in another document having a later date - for example, a document incorporated by reference into this prospectus - the statement in the document having the later date modifies or supersedes the earlier statement.

You should rely only on the information contained in, or incorporated by reference into, this prospectus and in any free writing prospectus that we may authorize for use in connection with this offering. We have not, and Canaccord Genuity Inc. (“Canaccord”), has not, authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. We are not, and Canaccord is not, making an offer to sell or soliciting an offer to buy our securities in any jurisdiction where an offer or solicitation is not authorized or in which the person making that offer or solicitation is not qualified to do so or to anyone to whom it is unlawful to make an offer or solicitation. You should assume that the information appearing in this prospectus, the documents incorporated by reference into this prospectus, and in any free writing prospectus that we may authorize for use in connection with this offering, is accurate only as of the date of those respective documents. Our business, financial condition, results of operations and prospects may have changed since those dates. You should read this prospectus, the documents incorporated by reference into this prospectus, and any free writing prospectus that we may authorize for use in connection with this offering, in their entirety before making an investment decision. You should also read and consider the information in the documents to which we have referred you in the sections of this prospectus entitled “Where You Can Find More Information” and “Information Incorporated by Reference.”

We are offering to sell, and seeking offers to buy, our common shares only in jurisdictions where offers and sales are permitted. The distribution of this prospectus and the offering of the common shares in certain jurisdictions may be restricted by law. Persons outside the United States who come into possession of this prospectus must inform themselves about, and observe any restrictions relating to, the offering of the common shares and the distribution of this prospectus outside the United States. This prospectus does not constitute, and may not be used in connection with, an offer to sell, or a solicitation of an offer to buy, any securities offered by this prospectus by any person in any jurisdiction in which it is unlawful for such person to make such an offer or solicitation.

In this prospectus, unless the context otherwise requires, references to the terms “VBI,” “we,” “us,” “our” and the “Company” refer to VBI Vaccines Inc. and its subsidiaries. When we refer to “you,” we mean the holders of common shares of the Company.

Sci-B-Vac™ and LPV™ and our other logos and trademarks are the property of VBI or its subsidiaries. All other brand names or trademarks appearing in this prospectus are the property of their respective holders. Our use or display of other parties’ trademarks, trade dress or products in this prospectus does not imply that we have a relationship with, or the endorsement or sponsorship of, the trademark or trade dress owners.

MARKET, INDUSTRY AND OTHER DATA

This prospectus, including the information incorporated by reference, contains estimates, projections and other information concerning our industry, our business, and the markets for certain products, including data regarding the estimated size of those markets, their projected growth rates and the incidence of certain medical conditions. Information that is based on estimates, forecasts, projections or similar methodologies is based on a number of assumptions and is inherently subject to uncertainties, including those described in “Risk Factors” and elsewhere in this prospectus and documents incorporated by reference in this prospectus, and actual events or circumstances may differ materially from events and circumstances reflected in this information. You are cautioned not to give undue weight to such estimates, projections and other information.

Unless otherwise expressly stated, we obtained this industry, business, market and other data from reports, research surveys, studies and similar data prepared by third parties, industry, medical and general publications, government data and similar sources. In some cases, we do not expressly refer to the sources from which this data is derived. In that regard, when we refer to one or more sources of this type of data in any paragraph, you should assume that other data of this type appearing in the same paragraph is derived from the same sources, unless otherwise expressly stated or the context otherwise requires.

DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus, including the documents that we incorporate by reference, may contain forward-looking statements within the meaning of Section 27A of the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”).

Forward-looking statements in this prospectus and any accompanying prospectus supplement include, without limitation, statements related to our plans, strategies, objectives, expectations, intentions and adequacy of resources. Investors are cautioned that such forward-looking statements involve risks and uncertainties including, without limitation, the following: (i) our plans, strategies, objectives, expectations and intentions are subject to change at any time at our discretion; (ii) our plans and results of operations will be affected by our ability to manage growth and competition; and (iii) other risks and uncertainties indicated from time to time in our filings with the SEC. Important factors that could cause actual results to differ materially from those indicated in the forward-looking statements include, but are not limited to, the rate and degree of market acceptance of our products, our ability to develop and market new and enhanced products, our ability to obtain financing as and when we need it, competition from existing and new products and our ability to effectively react to other risks and uncertainties described from time to time in our SEC filings, such as fluctuation of quarterly financial results, reliance on third party manufacturers and suppliers, litigation or other proceedings, government regulation and stock price volatility.

In some cases, you can identify forward-looking statements by terminology such as ‘‘may,’‘ ‘‘will,’‘ ‘‘should,’‘ ‘‘could,’‘ ‘‘expects,’‘ ‘‘plans,’‘ ‘‘intends,’‘ ‘‘anticipates,’‘ ‘‘believes,’‘ ‘‘estimates,’‘ ‘‘predicts,’‘ ‘‘potential,’‘ or ‘‘continue’‘ or the negative of such terms or other comparable terminology. Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, levels of activity, performance or achievements. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. We do not undertake any obligation to publicly update or review any forward-looking statement.

PROSPECTUS SUMMARY

OUR BUSINESS

This is only a summary and may not contain all the information that is important to you. You should carefully read both this prospectus and any accompanying prospectus supplement and any other offering materials, together with the additional information described under the heading “Where You Can Find More Information.”

About VBI Vaccines Inc.

We are a commercial stage biopharmaceutical company developing next generation vaccines to address unmet needs in infectious disease and immuno-oncology. VBI’s first marketed product is Sci-B-Vac™, a hepatitis B (“HBV”) vaccine that mimics all three viral surface antigens of the hepatitis B virus. Sci-B-Vac™ is approved for use in Israel and 14 other countries. Recently, VBI completed a post-marketing Phase IV clinical study in Israel to confirm a new in-house reference standard for regulatory and quality control purposes. Sci-B-Vac™ has not yet been approved by the U.S. Food and Drug Administration (the “FDA”), the European Medicines Agency (the “EMA”) or Health Canada (“HC”). VBI is currently developing a Phase III clinical program to obtain FDA, EMA, and HC market approvals for commercial sale of Sci-B-Vac™ in the United States, Europe, and Canada, respectively. Our wholly-owned subsidiary, SciVac Ltd., manufactures Sci-B-Vac™ in Rehovot, Israel.

We are also advancing our two platform technologies – our Enveloped Virus-Like Particle (“eVLP”) platform technology and our Lipid Particle Vaccine (“LPV”) technology. Our eVLP platform technology enables the development of enveloped virus-like particle vaccines that closely mimic the target virus to elicit a potent immune response. We are advancing a pipeline of eVLP vaccines, with lead programs in both infectious disease, with our congenital cytomegalovirus (“CMV”) vaccine, and in immuno-oncology, with our therapeutic glioblastoma multiforme (“GBM” or “glioblastoma”) vaccine candidate. Our LPV Thermostability technology is a proprietary formulation of lipids and process that allows vaccines and biologics to preserve stability, potency, and safety at temperatures outside of the most common cold chain storage requirements of 2 ^o C to 8 ^o C.

VBI is headquartered in Cambridge, MA with research operations in Ottawa, Canada and manufacturing facilities in Rehovot, Israel.

Our Principal Products

Our principal products include our hepatitis B vaccine, Sci-B-Vac™, our congenital CMV vaccine, our therapeutic GBM vaccine, our eVLP Platform, and our LPV platform.

Sci-B-Vac™

Sci-B-Vac™ is a third generation hepatitis B (“HBV”) vaccine, which is approved for use in Israel and in 14 other countries. First-generation hepatitis B vaccines were plasma-derived and were developed in the U.S. and in France in the late 1970s. In the mid-1980s, second-generation recombinant DNA-based vaccines were constructed using yeasts transfected with DNA sequences coding for the HBV S antigen. These second-generation vaccines are currently used for universal vaccination efforts in many countries worldwide. In contrast to these second-generation HBV vaccines, which contain only one surface antigen of HBV, the S antigen, Sci-B-Vac™ contains all three surface antigens: the S antigen, the pre-S1, and the pre-S2 antigens. Furthermore, Sci-B-Vac™ is produced in mammalian CHO cells whereas second-generation vaccines are produced in yeast. The composition of Sci-B-Vac™ may provide more opportunities for the immune system to respond with antibodies, or neutralizing antibodies, which can recognize one or more components of the HBV virus.

Several clinical studies have demonstrated that Sci-B-Vac™ possesses the following benefits relating to the prevention of the HBV virus:

In the last two decades, 22 clinical studies in over 4,500 patients have been completed using the current and/or prior formulations of Sci-B-Vac™. Additionally, product distribution data globally estimates that over 300,000 infants and adults have been vaccinated with Sci-B-Vac™. In head-to-head comparative studies, all formulations of Sci-B-Vac™ have consistently demonstrated higher rates of seroprotection earlier in adult populations compared to currently licensed hepatitis B vaccines. The most recent clinical study was a post-marketing Phase IV study conducted in Israel to support the marketing license and to confirm a new in-house reference standard for regulatory and quality control purposes. This study was conducted in 88 healthy, HBV-seronegative males and females between 20 and 40 years of age – 98.8% of participants were seroprotected at month 3, two months after receiving a second dose of Sci-B-Vac™.

Sci-B-Vac™ is generally well-tolerated by patients. During the clinical development and studies of Sci-B-Vac™, approximately 1% of the patients experienced local reactions at the injection site (as commonly observed with the use of most vaccines). The injection site reactions included soreness, pain, tenderness, pruritus, which is itchiness, erythema, which is redness, ecchymosis, which is discoloration of the skin resulting from bleeding underneath the skin, swelling, warmth and nodule formation. These reactions were generally mild and were resolved within two days after vaccination. Additionally fatigue, weakness, headache, fever, malaise, nausea, diarrhea, pharyngitis, which is inflammation of the pharynx, and upper respiratory infection were observed.

We believe the clinical data collected to date from the previous 22 clinical studies is sufficient to support a Phase III clinical program which, when completed, would allow us to seek Marketing Authorization Approval (“MAA”) by the FDA, EMA, and HC. We are in the process of finalizing the protocols, negotiating clinical trial agreements and finalizing clinical sites for the proposed Phase III clinical program.

On February 7, 2017, we announced that we received positive scientific advice from the Committee for Medicinal Products for Human Use (“CHMP”) of the EMA regarding our development path for Sci-B-Vac™ in Europe. In its letter, the CHMP expressed its support of our proposed plan to proceed to the Phase III clinical studies of Sci-B-Vac™. The CHMP also agreed that the product information, as well as data from ongoing studies, supports the Phase III clinical studies and our planned filing of an MAA for Sci-B-Vac™.

On February 22, 2017, we announced that the Biologics and Genetic Therapies Directorate (“BGTD”) of HC expressed its general support and acceptance of our development path for Sci-B-Vac™, in a pre-Clinical Trial Application (“CTA”) meeting. A complete CTA must be filed with and approved by BGTD, and all conditions of BGTD must be met, prior to the initiation of a clinical program in Canada. Given the extensive manufacturing data, licensed clinical efficacy and safety experience of Sci-B-Vac™, BGTD agreed in principle with our overall development strategy. In addition, BGTD agreed that the proposed Phase III program would satisfy the regulatory requirements for marketing authorization in Canada, supporting the indication for active immunization against hepatitis B in adults.

We had similar discussions with the FDA in a pre-IND meeting held on April 10, 2017.

Sci-B-Vac™ is currently manufactured by our wholly-owned subsidiary, SciVac Ltd., in its manufacturing facility in Rehovot, Israel.

Congenital CMV Vaccine Candidate

Our lead program using our eVLP technology targets congenital CMV, which is a leading cause of birth defects. While CMV is a common virus that infects one in every two people in many developed countries, most CMV infections are asymptomatic. However, CMV can cause serious disease in newborns if the mother is infected during pregnancy – this is called congenital CMV infection. Each year approximately 5,000 U.S. infants will develop permanent problems due to CMV infection, including deafness, blindness, and intellectual disability. CMV affects more live births than any other cause of birth defects, including Down Syndrome or Fetal Alcohol Syndrome, making it a key public health priority and a strong candidate for recommended universal vaccination.

Our vaccine candidate expresses the CMV gB antigen on the surface of the eVLP. Preclinical data demonstrated that the structure of the eVLP platform generated stronger neutralizing antibodies than immunization with the same gB target protein alone. Our CMV vaccine is also adjuvanted with alum, a safe, FDA-approved adjuvant. Our CMV vaccine has shown promise in early preclinical animal models, including in rabbits and in mice, with the ability to generate anti-CMV antibodies and CMV neutralizing responses in both fibroblasts and epithelial cells – two clinically-relevant cell types that are susceptible to CMV infection.

With the acquisition of VBI DE in 2016, a significant R&D priority has been the CMV vaccine candidate’s GMP manufacturing and its clinical development. Our CMV vaccine candidate was designed internally, and its manufacturing and purification processes were designed by the NRC in collaboration with our staff. Such processes and internal knowledge were transferred to our selected GMP manufacturer, Paragon Bioservices (“Paragon”), and required significant project management expertise and confirmatory R&D studies throughout 2014. In 2015, we engaged a contract research organization, ITR Laboratories Canada Inc., and completed GLP toxicology studies to confirm the safety of the CMV vaccine candidate in animals. We initiated a Phase I clinical study in June 2016 to assess the safety and tolerability of our CMV vaccine candidate in healthy, CMV-negative adults. The study will also assess the vaccine immunogenicity by measuring levels of vaccine-induced CMV neutralizing antibodies. We completed enrollment and initial dosing of 128 participants in September 2016. As of May 2017, all participants had received the third and final immunization in the series. Interim Phase I clinical study results are anticipated mid-year 2017.

Therapeutic GBM Vaccines

We have also applied our eVLP platform in the development of a therapeutic GBM vaccine candidate. GBM is among the most common and aggressive malignant primary brain tumors in humans. In the U.S. alone, 12,000 new cases are diagnosed each year. The current standard of care for GBM is surgical resection, followed by radiation and chemotherapy. Even with aggressive treatment, however, GBM progresses rapidly and is exceptionally lethal, with median patient survival of less than 16 months.

Developing a broadly applicable GBM immunotherapy requires the identification of antigens, used to direct the immune response, which are consistently expressed on tumor cells. A growing body of research has demonstrated that GBM tumors are susceptible to infection by CMV, with over 90% of GBM tumors expressing CMV antigens. Targeting CMV antigens, therefore, may represent an attractive strategy for GBM immunotherapy.

We intend to create a GBM immunotherapy that will stimulate the patient’s own immune system to identify and kill GBM cancer cells, with the goal of creating a commercially-viable therapy that is more effective and tolerable than current treatments. Leveraging the flexibility and potency of our eVLP platform technology, we are developing a polyvalent therapeutic vaccine candidate designed to direct an immune response against gB and pp65, two CMV antigens that are highly immunogenic targets during natural CMV infection. Our vaccine candidate also includes granulocyte-macrophage colony-stimulating factor (“GM-CSF”), an adjuvant that mobilized dendritic function and enhances Th1-type immunity.

Ex vivo studies demonstrate the vaccine candidate’s ability to induce desired anti-tumor immunity in peripheral blood mononuclear cells (“PBMCs”) harvested from healthy subjects and patients with GBM. GBM patient samples were provided by Columbia University’s Brain Tumor Center. Our vaccine candidate also stimulated both CD4+ and CD8+ T cell responses, characterized by secretion of IFN-g and CCL3, key biomarkers associated with positive clinical outcomes.

VBI expects to file an Investigational New Drug (“IND”) application with the FDA mid-year 2017 to initiate a Phase I/IIa clinical study in patients with GBM.

eVLP Vaccine Platform

On August 11, 2011, VBI Cda acquired the eVLP vaccine technology through the acquisition of ePixis. eVLPs SA. are an innovative new class of synthetic vaccines that are designed to closely mimic the structure of viruses. Because of their structural similarity to viruses found in nature, vaccination with a target protein expressed in an eVLP is capable of imparting greater immunity than vaccination with the same recombinant target protein alone. eVLPs are also highly customizable, which allows VBI to rationally design preventative and therapeutic vaccine candidates by controlling the expression of both surface and internal target proteins of interest.

eVLPs are produced after transient transfection of cells with plasmids encoding the murine leukemia virus (“MLV”) Gag and target surface or internal proteins of interest. The MLV Gag expression induces “budding” of particles from the membrane of transfected cells – the target protein of interest is incorporated into the outer envelope during the budding process. eVLPs are purified using a process designed to yield material with acceptable residual host cell impurities. Batch consistency has also been demonstrated using in vivo potency release assays.

In addition to the $450,000 initial payment for the technology and $75,000 in related transaction costs, we paid approximately $211,000 and $110,000 in milestone payments under the e-Pixis Licensing Agreement in the years ended December 31, 2016 and 2015, respectively.

We expect to continue to explore potential therapeutic and scientific targets where our eVLP platform technology can be used effectively to generate new vaccine programs.

LPV Platform

The LPV thermostability platform is a proprietary formulation and process that allows vaccines and biologics to preserve stability, potency, and safety. Many vaccines and biologics are highly sensitive to temperatues and physical stress. As a consequence, 90% of vaccines are transported and stored in a “cold chain” of temperature-controlled environments between 2 ^o C to 8 ^o C. Without proper storage, exposure to elevated or freezing temperatures can lead to a loss in potency or reduced safety, limiting protective benefits or therapeutic effects. Additionally, reliance on a cold chain increases vaccine costs by up to 20% and is a significant barrier to patient access in many emerging markets.

Our Lipid Particle Vaccine technology, or “LPV” technology, is a vaccine formulation technology that enables the thermostabilization of vaccines through a proprietary formulation and freeze-drying process. The technology is constituted by three lipids, monopalmitoylglycerol (“MPG”), dicetyl phosphate (“DCP”) and cholesterol mixed in a proprietary ratio with vaccine antigen using a patented method. The resulting mixture is then lyophilized (freeze dried) and can be stored for extended periods of time outside of the cold-chain.

We have active collaborations with both Sanofi Pasteur and GlaxoSmithKline, two of the leading vaccine producers in the world. VBI is working with Sanofi to explore reformulation a Sanofi vaccine candidate to improve stability. Under the terms of the Sanofi Agreement, Sanofi can also acquire certain rights to extend its use of the LPV technology to additional vaccine assets. In February 2016, we entered into the research collaboration with GSK, which provides GSK with the rights to negotiate an exclusive license to the LPV technology for use within a defined field.

In the normal course of our business, we assess and consider potential acquisition, or collaboration opportunities to gain access to, technologies or assets that are adjacent to our core competencies of immunology and formulation development. We are currently exploring this LPV technology further through partnerships with other third-party collaborators.

Our Research and Development Efforts

We invest heavily in R&D. R&D expenses, which includes clinical development and regulatory related costs, were $10 million for the year ended December 31, 2016 and $14.1 million for the year ended December 31, 2015. All R&D was funded by equity, term loan or convertible note financings or government grants and refundable R&D tax credits. Our most significant R&D expense has been, and is expected to continue to be, related mainly to our development of a CMV vaccine candidate and the related eVLP platform. Such R&D expenses are expected to increase significantly as the vaccine moves into the clinical development stage and we explore other vaccine opportunities and/or collaborations.

With the acquisition of VBI DE in 2016, a significant R&D priority has been the CMV vaccine candidate’s GMP manufacturing and its clinical development. Our CMV vaccine candidate was designed internally, and its manufacturing and purification processes were designed by the NRC in collaboration with our staff. Such processes and internal knowledge were transferred to our selected GMP manufacturer, Paragon, and required significant project management expertise and confirmatory R&D studies throughout 2014. In 2015, we engaged a contract research organization, ITR Laboratories Canada Inc., and completed GLP toxicology studies to confirm the safety of the CMV vaccine candidate in animals. We initiated a Phase I clinical study in June 2016 to assess the safety and tolerability of our CMV vaccine candidate in healthy, CMV-negative adults. The study will also assess the vaccine immunogenicity by measuring levels of vaccine-induced CMV neutralizing antibodies. We completed enrollment and initial dosing of 128 participants in September 2016. As of May 2017, all participants had received the third and final immunization in the series. Interim Phase I clinical study results are anticipated mid-year 2017.

As previously described, we expect to make additional R&D investments in our other eVLP vaccine candidates, and in our LPV platform, which we expect will be driven by partner-led collaborations, if any.

Corporate Information

Our headquarters are located at 222 Third Street, Suite 2241, Cambridge, Massachusetts, 02142. Our primary research facility is located in Ottawa, Ontario, Canada and our Sci-B-Vac manufacturing facilities are located in Rehovot, Israel and managed by SciVac Ltd., our wholly-owned subsidiary. Our telephone number at our headquarters is (617) 830-3031. Our registered office is located at 1200 Waterfront Centre, 200 Burrard St, P.O. Box 48600, Vancouver, BC, Canada V7X 1T2.

Additional information about us is available on our website at www.vbivaccines.com. The information contained on or that may be obtained from our website is not, and shall not be deemed to be, a part of this prospectus. Our common shares, no par value, are currently traded on The NASDAQ Capital Market and the Toronto Stock Exchange under the ticker symbol “VBIV” and “VBV,” respectively.

For a description of our business, financial condition, results of operations and other important information regarding us, we refer you to our filings with the SEC incorporated by reference in this prospectus. For instructions on how to find copies of these documents, see “ Where You Can Find More Information .”