As filed with the Securities and Exchange Commission on JuneApril 21, 20192023.

Registration No. [*]333-              

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington,WASHINGTON, D.C. 20549

FORM S-1

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

Palisade Bio, Inc.

NEURALSTEM, INC.

(Exact name of registrant as specified in its charter)

Palisade Bio, Inc.

20271 Goldenrod Lane, 2nd Floor7750 El Camino Real, Suite 2A

Germantown, MD 20876Carlsbad, California 92009

Tel: 301.366.4960(858) 704-4900

(Address, including zip code, and telephone number,

including area code of registrant’s principal executive offices)

Agent for Service:

Paracorp Inc.Incorporated

40 E. Division Street Suite A2140 S Dupont highway

Dover,Camden, DE 1990119934

(888) 372-7273(302) 697-4590

(Name, address, including zip code, and telephone number,

including area code, of agent for service)

Copies to:

Copy to:

Raul Silvestre Esq

Dennis Gluck

Silvestre Law Group, P.C.

31200 Via Colinas, Suite 2002629 Townsgate Road #215

Westlake Village, Ca 91362

(818) 597-7552

Approximate date of commencement of proposed sale to the public: From time to time after the effective date of this registration statement becomes effective.statement.

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933 check the following box. ¨☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ¨☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ¨☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ¨☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer” andfiler,” “smaller reporting company,”

and “emerging growth company” in Rule 12b-2 of the Exchange Act.

CALCULATION OF REGISTRATION FEESIf an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTIONThe registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with section 8(a) OF THE SECURITIES ACT OFof the Securities Act of 1933 AS AMENDED, OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SUCH SECTIONor until the registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said section 8(a), MAY DETERMINE.may determine.

The information in this preliminary prospectus is not complete and may be changed. These securitiesThe selling stockholders may not be soldsell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This preliminary prospectus is not an offer to sell nor doesthese securities and it seekis not soliciting an offer to buy these securities in any jurisdictionstate where the offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED JUNEAPRIL 21, 20192023

PRELIMINARY PROSPECTUS

Shares

3,925,492 shares of Common Stock

_______________________

This prospectus relates to the resale by the selling stockholders identified in this prospectus of up to an aggregate of 3,925,492 shares of our common stock (“Common Shares” or “Common Stock”) consisting of (i) 455,242 shares of Common Stock, (ii) 1,061,164 shares of Common Stock issuable upon the exercise of prefunded warrants with a perpetual term (the “Prefunded Warrants”), (iii) 2,272,723 shares of Common Stock issuable upon the exercise of Common Stock purchase Warrants with a term of five (5) years (the “Warrants”), and (iv) 136,363 shares of Common Stock issuable upon the exercise of the placement agent warrants (the “Placement Agent Warrants”).

We are offering upwill not receive any proceeds from the sale of the Common Shares by the selling stockholders under this prospectus. Notwithstanding, upon the exercise, for cash, of the: (i) Prefunded Warrants, (ii) Warrants, and (iii) Placement Agent Warrants, we will receive aggregate gross proceeds of approximately $6.45 million.

We have agreed to bear all of the expenses incurred in connection with the registration of these Common Shares. The selling stockholders will pay or assume brokerage commissions and similar charges, if any, incurred for the sale of the Common Shares.

Sales of the Common Shares by the selling stockholders may occur at fixed prices, at market prices prevailing at the time of sale, at prices related to prevailing market prices, at negotiated prices and/or at varying prices determined at the time of sale. The selling stockholders may sell Common Shares directly or through underwriters, broker-dealers or agents, who may receive compensation in the form of discounts, concessions or commissions from the selling stockholders, the purchasers of the Common Shares, or both. The selling stockholders may sell any, all or none of the securities offered by this prospectus and we do not know when or in what amount the selling stockholders may sell their shares of common stock. Common Stock hereunder following the effective date of the registration statement of which this prospectus forms a part. For additional information about how the selling stockholders may sell or otherwise dispose of their Common Shares, please refer to the section of this prospectus entitled “Plan of Distribution” beginning on page 21.

We may amend or supplement this prospectus from time to time by filing amendments or supplements as required. You should read the entire prospectus and any amendments or supplements carefully before you make your investment decision.

Our common stockCommon Stock is listed on Thethe Nasdaq Capital Market under the symbol “CUR.“PALI.” On June 13, 2019,April 20, 2023, the last reported sale price of our common stock onCommon Stock was $1.76 per share. You are urged to obtain current market quotations for the Nasdaq Capital Market was $0.38 per share.

_______________________Common Stock.

Investing in our common stock is highly speculative and involves a high degree of risk. You should consider carefully the risks and uncertainties in the section entitled “Risk Factors” beginning on page 4 of this prospectus before investing in our common stock.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

_______________________

We have granted the underwriters an option to purchase up to           additional shares of common stock from us at the public offering price, less underwriting discounts and commissions within              days from the date of this prospectus, to cover over-allotments, if any.

The underwriters expect to deliver our shares to purchasers in the offering on or about      , 2019.

_______________________

The date of this prospectus is         , 2019

TABLE OF CONTENTS

Please read this prospectus carefully. It describes our business, our financial condition and our results of operations. We have prepared this prospectus so that you will have the information necessary to make an informed investment decision.

You may rely only on the information contained in this prospectus. We have not, and the underwriters have not, authorized anyone to provide information or to make representations not contained in this prospectus. This prospectus is neither an offer to sell, nor a solicitation of an offer to buy, these securities in any jurisdiction where an offer or solicitation would be unlawful. Neither the delivery of this prospectus, nor any sale made under this prospectus, means that the information contained in this prospectus is correct as of any time after the date of this prospectus. This prospectus may be used only where it is legal to offer and sell these securities.

For investors outside the United States: Neither we nor any of the underwriters have done anything that would permit this offering or possession or distribution of this prospectus or any free writing prospectus we may provide to you in connection with this offering in any jurisdiction where action for that purpose is required, other than in the United States. You are required to inform yourselves about and to observe any restrictions relating to this offering and the distribution of this prospectus and any such free writing prospectus outside of the United States.

USE OF MARKET AND INDUSTRY DATA

This prospectus includes market and industry data that has been obtained from third party sources, including industry publications, as well as industry data prepared by our management on the basis of its knowledge of and experience in the industries in which we operate (including our management’s estimates and assumptions relating to such industries based on that knowledge). Management’s knowledge of such industries has been developed through its experience and participation in these industries. While our management believes the third party sources referred to in this prospectus are reliable, neither we nor our management have independently verified any of the data from such sources referred to in this prospectus or ascertained the underlying economic assumptions relied upon by such sources. Internally prepared and third party market forecasts, in particular, are estimates only and may be inaccurate, especially over long periods of time. In addition, the placement agents have not independently verified any of the industry data prepared by management or ascertained the underlying estimates and assumptions relied upon by management. Furthermore, references in this prospectus to any publications, reports, surveys or articles prepared by third parties should not be construed as depicting the complete findings of the entire publication, report, survey or article. The information in any such publication, report, survey or article is not incorporated by reference in this prospectus.

PROSPECTUS SUMMARY

This summary highlights information contained throughout this prospectus and is qualified in its entirety by reference to the more detailed information and financial statements in this prospectus and related notes included elsewhere herein. This prospectus contains forward-looking statements, which involves risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of certain factors, including those set forth under “Cautionary Note Regarding Forward-Looking Statements” and under “Risk Factors” and elsewhere in this prospectus. Since this is only a summary, it does not contain all of the information that may be important to you in making your investment decision. You should carefully read the more detailed information contained in this prospectus, including our financial statements in this prospectus and related notes. Our business involves significant risks. You should carefully consider the information under the heading “Risk Factors” beginning on page 4 of this prospectus.

As used in this prospectus, unless context otherwise requires, the words “we,” “us,” “our,” the “Company” and “Neuralstem” refer to Neuralstem, Inc.  Also, any reference to “common stock” refers to our common stock, $0.01 par value per share.

Our Company

We are primarily focused on the research and development of nervous system therapies based on our proprietary human neural stem cells and our small molecule compounds with the ultimate goal of gaining approval from the United States Food and Drug Administration (“FDA”), and its international counterparts, to market and commercialize such therapies. Recently, we have also began an in-licensing and acquisition strategy in which we are evaluating novel therapeutics with the potential to be complimentary to our current technologies or that could benefit from our development experience with the goal of developing such technologies for commercialization.

Our patented technology platform has three core components:

To date. our technology platform has produced two lead assets in clinical development: our NSI-566 stem cell therapy program and our NSI-189 small molecule program.

We believe our technology, in combination with our expertise, and established collaborations with major research institutions, could facilitate the development and commercialization of products for use in the treatment of a wide array of nervous system disorders including neurodegenerative conditions and regenerative repair of acute and chronic disease.

In-licensing or Acquisition Strategy

We have initiated an in-licensing or acquisition strategy to further expand our product pipeline. Our in-licensing strategy consists of evaluating early clinical or late preclinical stage opportunities in therapeutic areas that can benefit from our current product candidates or core expertise in drug development. Such in-licensing or acquisition opportunities may be in stem cell related technologies, CNS or in other therapeutic areas. We believe that this element of our corporate strategy could diversify the risks inherent in focusing on limited therapeutic areas and could increase our probability of commercial success.

Clinical Programs

We have devoted our efforts and financial resources primarily to the pre-clinical and clinical development of our small molecule compounds and our stem cell therapeutics. Below is a description of our most advanced clinical programs.

Based on our current cash position, we have greatly curtailed our development efforts with regard to our pre-clinical and clinical studies except with respect to our exploratory phase 2 study of NSI-566 for the treatment of Ischemic Stroke (the results of which will not be able to be used in connection with any regulatory filing in any territory) and studies that are being funded by grants. Additionally, we have increased our focus and efforts on our in-licensing and acquisition strategy that we announced earlier this year. In the event we are able to secure adequate additional financing, we will review existing programs with regard to re-initiating active development.

Our Technologies

Stem Cells

From a therapeutic perspective, our stem cell-based technology enables the isolation and large-scale expansion of regionally specific, human neural stem cells from all areas of the developing human brain and spinal cord thus enabling the generation of physiologically relevant human neurons of different types. We believe that our stem cell technology will enable the replacement or supplementation of malfunctioning or dead cells thereby creating a neurotrophic environment that offers protection to neural tissue as a way to treat disease and injury. Many significant and currently untreatable human diseases arise from the loss or malfunction of specific cell types in the body. Our focus is the development of effective methods to generate replacement cells from neural stem cells. We believe that creating a neurotrophic environment by replacing damaged, malfunctioning or dead neural cells with fully functional ones may be a useful therapeutic strategy in treating many diseases and conditions of the central nervous system.

Our Proprietary and Novel Screening Platform

Our human neural stem cell lines form the foundation for functional cell-based assays used to screen for small molecule compounds that can impact biologically relevant outcomes such as neurogenesis, synapse formation, and protection against toxic insults.We have developed over 300 unique stem cell lines representing multiple different regions of the developing brain and spinal cord at multiple different time points in development, enabling the generation of physiologically relevant human neural cells for screening, target validation, and mechanism-of-action studies. This platform provides us with a unique and powerful tool to identify new chemical entities to treat a broad range of nervous system conditions. NSI-189 was discovered using our stem cell-based screening platform.

Small Molecule Pharmaceutical Compounds.

Utilizing our proprietary stem cell-based screening capability, we have discovered and patented a series of small molecule compounds. We believe our low molecular weight organic compounds can efficiently cross the blood/brain barrier. In mice, research indicated that the small molecule compounds both stimulate neurogenesis of the hippocampus and increase its volume. We believe the small molecule compounds may promote synaptogenesis and neurogenesis in the human hippocampus thereby providing therapeutic benefits in indications such as MDD and may also provide clinical benefit in indications such as Angelman Syndrome, Diabetic Neuropathy, Cognition, Stroke and Radiation Induced Cognitive Deficit.

Intellectual Property

We believe that we have developed and maintain a strong portfolio of patents and patent applications that form the proprietary base for our research and development efforts. We own or exclusively license approximately 10 U.S. issued and pending patents and approximately 55 foreign issued and pending patents related to our stem cell technologies for use in treating disease and injury. We own approximately 15 U.S. issued and pending patents and approximately 75 foreign issued and pending patents related to our small molecule compounds.

Corporate Information

We were incorporated in Delaware in 2001. Our principal executive offices are located at 20271 Goldenrod Lane, Germantown, Maryland 20876, and our7750 El Camino Real, Suite 2A, Carlsbad, California 92009, telephone number is (301) 366-4841. Our website is located at www.neuralstem.com.(858) 704-4900.

The reference to our web address does not constitute incorporation by reference of the information contained at this site into this prospectus.

The Offering

RISK FACTORS

Investing in our common stock involves a high degree of risk. You are urged to read the section entitled “Risk Factors” beginning on page 8 of this prospectus, which describes specific risks and other information that should be considered before you make an investment decision.

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR DETERMINED IF THIS PROSPECTUS IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

The date of this prospectus is                , 2023.

TABLE OF CONTENTS

This prospectus is part of a registration statement on Form S-1 that we filed with the Securities and Exchange Commission (the “SEC”). Under this registration statement, the selling stockholders may sell from time to time in one or more offerings the Common Stock described in this prospectus. We incorporate by reference important information into this prospectus. You may obtain the information incorporated by reference without charge by following the instructions under “Where You Can Find More Information.” You should carefully considerread this prospectus as well as additional information described under “Incorporation of Certain Information by Reference,” before deciding to invest in our Common Shares.

We have not authorized anyone to provide you with information other than the following risk factors and all other information containedthat we have provided or incorporated by reference in this prospectus including our financial statements and related notes, before purchasing our common stock. The risks described belowyour reliance on any unauthorized information or representation is at your own risk. This prospectus may be used only in jurisdictions where offers and sales of these securities are notpermitted. You should assume that the information appearing in this prospectus is accurate only ones we face. Additional risks not presently known to us oras of the date of this prospectus and that we currently consider immaterial may also adversely affect our business. We have attempted to identify below the major factors that could cause differences between actual and planned or expected results, but we cannot assure you thatany information we have identified all such factors.

If anyincorporated by reference is accurate only as of the following events were to occur,date of the document incorporated by reference, regardless of the time of delivery of this prospectus, or any sale of our Common Stock. Our business, financial condition and results of operations could be materially and adversely affected. In these circumstances, the market price of our common stock could decline, and you could lose your entire investment.may have changed since those dates.

Risks Relating to this Offering

If you purchase our sharesUnless otherwise stated, all references in this offering, youprospectus to “we,” “us,” “our,” “Palisade,” the “Company” and similar designations refer to Palisade Bio, Inc. This prospectus contains references to trademarks belonging to other entities. Solely for convenience, trademarks and trade names referred to in this prospectus, including logos, artwork and other visual displays, may appear without the ® or ™ symbols, but such references are not intended to indicate, in any way, that the applicable licensor will incur immediatenot assert, to the fullest extent under applicable law, its rights to these trademarks and substantial dilution in the net tangible book valuetrade names. We do not intend our use or display of your shares.other companies’ trade names or trademarks to imply a relationship with, or endorsement or sponsorship of us by, any other companies.

The public offering price is substantially higher thanA prospectus supplement may add to, update, or change the net tangible book value per share of our common stock. Investors purchasing shares of common stock in this offering will pay a price per share that substantially exceeds the book value of our tangible assets after subtracting our liabilities. As a result, investors purchasing shares in this offering will incur immediate dilution of $        per share, based on a public offering price of $         per share. Further, investors purchasing shares in this offering will contribute approximately        % of the total amount invested by stockholders since our inception, but will own approximately % of the shares of common stock outstanding. See “Dilution” section of this registration statement

Because our management will have broad discretion and flexibility in how the net proceeds from this offering are used, our management may use the net proceeds in ways with which you disagree, or which may not prove effective.

We currently intend to use the net proceeds from this offering for the further development of our stem cell and small molecule assets, our acquisition and in-licensing strategy and the general working capital needs of the company, as discussed under “Use of Proceeds”information contained in this prospectus. We have not allocated specific amounts ofYou should read both this prospectus and any applicable prospectus supplement together with additional information described below under the net proceeds from this offering for any of the foregoing purposes. Accordingly, our management will have significant discretion and flexibility in applying the net proceeds of this offering.heading “Where You will be relying on the judgment of our management with regard to the use of these net proceeds, and you will not have the opportunity, as part of your investment decision, to assess whether the net proceeds are being used appropriately. It is possible that the net proceeds will be invested in a way that does not yield a favorable, or any, return for us. The failure of our management to use such funds effectively could have a material adverse effect on our business, financial condition, operating results and cash flow.

As a result of this offering, 2,982,709 warrants with anti-dilution price protection provisions will have their exercise prices reduced to the offering price, or in some cases, below the offering price.

As a result of this offering, 2,982,709 warrants with anti-dilution price protection provisions will have their exercise prices reduced. These warrants include (i) 525,015 warrants issued in our May 2016 registered offering, (ii) 207,694 warrants issued in our May 2016 private placement, and (iii) 2,250,000 warrants issued in our August 2017 registered offering. In the event that the price per share in this offering is less than the current exercise price of such warrants, each of these outstanding warrants will have their exercise prices reduced to at least the offering price of the securities sold hereunder. The warrants issued in our August 2017 offering may be reduced to the quotient of the sum of the three lowest volume weighted average prices of the common stock during the five trading day period immediately following the public announcement of the dilutive issuance divided by three which will likely result in their exercise price being below the offering price.

There may be future sales or other dilution of our equity, which may adversely affect the market price of our common stock.

We are generally not restricted from issuing additional common stock, including any securities that are convertible into or exchangeable for, or that represent the right to receive, common stock. The market price of our common stock could decline as a result of sales of common stock or securities that are convertible into or exchangeable for, or that represent the right to receive, common stock after this offering or the perception that such sales could occur.Can Find Additional Information.”

Risks Relating to Our Stage of Development, Capital Structure and Listing of Our Securities

We may not be able to continue as a going concern if we do not obtain additional financing.

We have incurred losses since our inception and have not demonstrated an ability to generate revenues from the sales of our proposed products.  Our ability to continue as a going concern is dependent on raising capital from the sale of our common stock and/or obtaining debt financing.  Our cash, cash equivalents and short-term investment balance at March 31, 2019 was approximately $4.0 million. Based on our current expected level of operating expenditures, we expect to be able to fund our operations into the third quarter of 2019. Our ability to remain a going concern is wholly dependent upon our ability to continue to obtain sufficient capital to fund our operations.

Accordingly, despite our ability to secure capital in the past, there can be no assurance that additional equity or debt financing will be available to us when needed or that we may be able to secure funding from any other sources. In the event that we are not able to secure funding, we may be forced to curtail operations, delay or stop ongoing clinical trials, cease operations altogether or file for bankruptcy.

Our auditors have expressed substantial doubt about our ability to continue as a going concern.

Our auditors’ report issued in connection with our December 31, 2018 financial statements expressed an opinion that our capital resources as of the date of their audit report were not sufficient to sustain operations or complete our planned activities for the upcoming year unless we raised additional funds. Our current cash level raises substantial doubt about our ability to continue as a going concern past the third quarter of 2019. If we do not obtain additional capital by such time, we may no longer be able to continue as a going concern and may cease operation or seek bankruptcy protection.

If we are unable to successfully retain and integrate a new management team, our business could be harmed.

Effective January 1, 2019, we appointed Dr. Kenneth Carter as our Executive Chairman. In such role, Dr. Carter is our Principal Executive and Accounting Officer. Our success depends largely on the development and execution of our business strategy by our senior management team. We currently have a limited full-time executive team which may adversely affect our business. Additionally, the loss of any members or key personnel would likely harm our ability to implement our business strategy and respond to the rapidly changing market conditions in which we operate. There may be a limited number of persons with the requisite skills to serve in these positions, and we cannot assure you that we would be able to identify or employ such qualified personnel on acceptable terms, if at all. We cannot assure you that management will succeed in working together as a team. In the event we are unsuccessful, our business and prospects could be harmed.

Our common stock does not currently meet the continued listing requirements for the Nasdaq Capital Market and accordingly is subject to delisting.

On November 29, 2018, we received a written notice from the Nasdaq Stock Market LLC that we are not in compliance with Nasdaq Listing Rule 5550(a)(2), as the minimum bid price of our common stock had been below $1.00 per share for 30 consecutive business days. In accordance with Nasdaq Listing Rule 5810(c)(3)(A), we had a period of 180 calendar days, or until May 28, 2019, to regain compliance with the minimum bid price requirement. We did not regain compliance as of May 28, 2018, and accordingly, we received a letter from Nasdaq of its intention to delist our securities. Notwithstanding, we requested a hearing before the Nasdaq Hearings Panel, which automatically stayed further action by Nasdaq pending the completion of the hearing process. At such hearing, which is scheduled to occur on August 1, 2019, we will present a plan, including a potential reverse stock split, to regain compliance with all applicable requirements for continued listing on the Nasdaq Capital Market, including the $1.00 bid price requirement and request an extension within which to do so.

There can be no assurance that the Nasdaq Hearings Panel will accept our plan to regain compliance. If our shares lose their status on the Nasdaq Capital Market, we believe that our shares would likely be eligible to be quoted on the inter-dealer electronic quotation and trading system operated by Pink OTC Markets Inc., commonly referred to as the Pink Sheets and now known as the OTCQB market. These markets are generally considered not to be as efficient as, and not as broad as, the Nasdaq Capital Market. If our common stock is delisted, this would, among other things, substantially impair our ability to raise additional funds and could result in a loss of institutional investor interest and fewer development opportunities for us.

The liquidity of our common stock and shareholder’s ability to sell their shares may be affected if we undertake a reverse stock split.

On May 28, 2019, we received a delisting notice from the Nasdaq Stock Market LLC as a result of our noncompliance with Nasdaq Listing Rule 5550(a)(2), as the minimum bid price of our common stock had been below $1.00 per share for 30 consecutive business days ending November 29, 2018, and our common stock failed to appreciate to a price at or above $1.00, and remain above $1.00 for 10 consecutive business days in the 180 day period thereafter. We have requested a hearing before the Nasdaq Hearings Panel to stay further action by Nasdaq pending a hearing to occur on August 1, 2019 where we will present a plan to regain compliance with the applicable requirements for continued listing on the Nasdaq Capital Market. This plan is likely to include us undertaking a reverse stock split. In the event that we undertake a reverse stock split to regain compliance, the liquidity of our common stock may be adversely affected given the corresponding reduction in the number of shares that will be outstanding following the reverse stock split. In addition, the reverse stock split may increase the number of stockholders who own odd lots (less than 100 shares) of our common stock, creating the potential for such stockholders to experience an increase in the cost of selling their shares and greater difficulty effecting such sales.

In the event we are required to undertake a reverse stock split, the market price of our common stock may decline.

On May 28, 2019, we received a delisting notice from the Nasdaq Stock Market LLC as a result of our noncompliance with Nasdaq Listing Rule 5550(a)(2), as the minimum bid price of our common stock had been below $1.00 per share for 30 consecutive business days ending November 29, 2018, and our common stock failed to appreciate to a price at or above $1.00, and remain above $1.00 for 10 consecutive business days in the 180 day period thereafter. We have requested a hearing before the Nasdaq Hearings Panel to stay further action by Nasdaq pending a hearing to occur on August 1, 2019 where we will present a plan to regain compliance with the applicable requirements for continued listing on the Nasdaq Capital Market. Pursuant to this plan, we may be required to undertake a reverse stock split. Historically, after a reverse stock split, the market price of a company’s shares declines.

If our common stock were delisted from NASDAQ, the Company would be subject to the risks relating to penny stocks.

If our common stock were to be delisted from trading on the Nasdaq Capital Market and the trading price of our common stock were below $5.00 per share on the date our common stock is delisted, trading in our common stock would also be subject to the requirements of certain rules promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). These rules require additional disclosure by broker-dealers in connection with any trades involving a stock defined as a "penny stock" and impose various sales practice requirements on broker-dealers who sell penny stocks to persons other than established customers and accredited investors, generally institutions. These additional requirements may discourage broker-dealers from effecting transactions in securities that are classified as penny stocks, which could severely limit the market price and liquidity of such securities and the ability of purchasers to sell such securities in the secondary market. A penny stock is defined generally as any non-exchange listed equity security that has a market price of less than $5.00 per share, subject to certain exceptions.

We could become the subject to securities litigation.

Commencing in 2017, we have seen a dramatic decrease in the price of our common stock. Plaintiffs have often initiated securities class action litigation against a company following periods of significant decreases in the market price of the company’s securities. Although management is not aware of any threatened litigation, we may in the future be the target of similar litigation. Securities litigation could result in substantial costs and liabilities and could divert management’s attention and resources from our operations and business.

We have a history of losses.

Since inception in 1996 through March 31, 2019, we have accumulated losses totaling approximately $216.7 million. As of March 31, 2019, we had a working capital surplus of approximately $3.3 million and stockholders’ equity of approximately $3.3 million. Our net losses for the two most recent fiscal years have been approximately $4.9 million and $15.7 million for 2018 and 2017, respectively.

To date, we have not generated any revenue from the commercial sale of our proposed products. No assurances can be given as to exactly when, if at all, we will be able to fully develop, commercialize, market, sell and/or derive any, let alone material, revenues from our proposed products.

We will need to raise additional capital to continue operations.

Since our inception, we have funded our operations through the sale of our securities, credit facilities, the exercise of options and warrants, and to a lesser degree, from grants and research contracts and other revenue generating activities such as licensing. As of March 31, 2019, we had cash, cash equivalents and short-term investments on hand of approximately $4.0 million. We cannot assure you that we will be able to secure additional capital through financing transactions, including issuance of debt, licensing agreements or grants. Our inability to license our intellectual property, obtain grants or secure additional financing will materially impact our ability to fund our current and planned operations.

We have spent and expect to continue spending substantial cash in the research, development, clinical and pre-clinical testing of our proposed products with the goal of ultimately obtaining FDA approval and equivalent international approvals to market such products. We will require additional capital to conduct research and development, establish and conduct clinical and pre-clinical trials, enter into commercial-scale manufacturing arrangements and to provide for marketing and distribution of our products. We cannot assure you that financing will be available if needed. If additional financing is not available, we may not be able to fund our operations, develop or enhance our technologies, take advantage of business opportunities or respond to competitive market pressures. If we exhaust our cash reserves and are unable to secure additional financing, we may be unable to meet our obligations which could result in us initiating bankruptcy proceedings or delaying or eliminating some or all of our research and product development programs. 

Tianjin Pharmaceuticals Group International Holdings Co., LTD, by virtue of its ownership of our securities, may be able to control the Company.

As of June 15, 2019, Tianjin Pharmaceuticals Group International Holdings Co., LTD (“Tianjin”) owned 4,000,685 shares or approximately 19.99% of our issued and outstanding common stock. Additionally, Tianjin owns 534,809 shares of our Series A Preferred Stock, which subject to certain conversion limitations, are convertible into an additional 2,079,010 shares of our common stock. The terms and conditions of the Series A Preferred Stock limit Tianjin ability to convert, without receiving shareholder approval, if it would result in Tianjin owning in excess of 19.99% of the Company’s issued and outstanding common stock. On June 12, 2019, the shareholders of the Company approved, pursuant to Nasdaq Market Place Rule 5635(b), the full conversion of the Series A Preferred Stock. Accordingly, if Tianjin were to convert its remaining shares of Series A Preferred Stock, it would own approximately 30% of our issued and outstanding common stock.

Based on Tianjin’s current level of stock ownership, Tianjin retains substantial ability to influence the election or removal of members of our board of directors, and thereby control our management. Tianjin also has the ability to significantly control the outcome of corporate actions requiring shareholder approval, including amending our certificate of incorporation, approving mergers or other changes of corporate control, and approving going private transactions and other extraordinary transactions, any of which may be in opposition to the best interest of the other shareholders and may negatively impact the value of your investment.

Risks Relating to Our Business

Following our announcements regarding the negative results from our Phase 2 study, we may not generate any future revenues from NSI-189 or its underlying intellectual property and securing additional financing may be more difficult.

On July 25, 2017, we announced that our Phase 2 study of NSI-189 in subjects with MDD failed to achieve statistical significance on its primary endpoint although a subsequent evaluation of the data appeared directionally positive with regard to certain secondary endpoints. Following these clinical results, generating any future revenues from NSI-189 or its underlying intellectual property is unlikely. Additionally, after similar results, other companies in our industry have found it more difficult to raise capital and when they have been able to raise capital, it has typically been on less favorable terms.

Our business is dependent on the successful development of our product candidates.

Our business is significantly dependent on our product candidates which are currently at different phases of pre-clinical and clinical development or that we may acquire or in-license in the future. The process to approve our product candidates is time-consuming, involves substantial expenditures of resources, and depends upon a number of factors, including the availability of alternative treatments, and the risks and benefits demonstrated in our clinical trials. Our success will depend on our ability to achieve scientific and technological advances and to translate such advances into FDA-approvable, commercially competitive products on a timely basis. Failure can occur at any stage of the process. On July 25, 2017, we announced that our Phase 2 clinical trial of NSI-189 in MDD failed to achieve statistical significance on its primary endpoint although a subsequent evaluation of the data appeared directionally positive with regard to certain secondary endpoints. If we are not successful in developing our product candidates, we will have invested substantial amounts of time and money without developing revenue-producing products. As we enter a more extensive clinical program for our product candidates, the data generated in these studies may not be as compelling as the earlier results. This, in turn, could adversely impact our ability to raise additional capital and pursue our business plan and planned research and development efforts.

Our proposed products are not likely to be commercially available for at least several years, if at all. Our development schedules for our proposed products may be affected by a variety of factors, including technological difficulties, clinical trial failures, regulatory hurdles, competitive products, intellectual property challenges and/or changes in governmental regulation, many of which will not be within our control. Any delay in the development, introduction or marketing of our product candidates could result either in such products being marketed at a time when their cost and performance characteristics would not be competitive in the marketplace or in the shortening of their commercial lives. In light of the long-term nature of our projects, the unproven technology involved, and the other factors described elsewhere in this section, there can be no assurance that we will be able to successfully complete the development or marketing of any of our proposed product candidates.

Our business relies on technologies that we may not be able to commercially develop.

We have allocated the majority of our resources to the development of our stem cell and small molecule technologies. Our ability to generate revenue and operate profitably will depend on being able to develop these technologies for human applications. These are emerging technologies that may have limited human application. On July 25, 2017, we announced that our Phase 2 clinical trial of NSI-189 in MDD failed to achieve statistical significance on its primary endpoint although a subsequent evaluation of the data appeared directionally positive with regard to certain secondary endpoints. We cannot guarantee that we will be able to develop our technologies or that if developed, our technologies will result in commercially viable products or have any commercial utility or value. We anticipate that the commercial sale of our proposed products and/or royalty/licensing fees related to our technologies, will be our primary sources of revenue. If we are unable to develop our technologies, we may never realize any significant revenue. Additionally, given the uncertainty of our technologies, product candidates and the need for government regulatory approval, we cannot predict when, or if ever, we will be able to realize revenues related to our products. As a result, we will be primarily dependent on our ability to raise capital through the sale of our securities for the foreseeable future.

Our stem cell therapy programs rely on experimental surgical devices and highly invasive experimental surgical procedures.

We are subject to the risks inherent in the use and development of experimental surgical devices and procedures. We have limited experience with medical devices and must rely on outside consultants and manufacturers to develop and seek any required approvals for the device we use in connection with our stem cell therapy program. Additionally, the surgical procedures required to administer our stem cell therapies are experimental, highly invasive and is required to be performed by highly experienced neurosurgeons who have received special training. We cannot guarantee consistent and safe performance of these devices or the surgical procedures. A surgery related adverse event may result in a clinical hold and may have long-term and damaging effects on our ability to complete development of the stem cell therapy programs, including the completion of any ongoing or planned clinical trials. Even if one or more of our programs is successful and receives marketing approval from a regulatory authority, due to the specialized nature of the device and surgical procedure, there may not be sufficient train surgeons to administer our therapy.

We are unable to predict when or if we will be able to earn significant revenues.

Given the uncertainty of our technologies and the need for government regulatory approval, we cannot predict when, or if ever, we will be able to realize revenues related to our products. Our proposed products are not likely to be commercially available for at least several or more years, if ever. Accordingly, we do not foresee generating any significant revenue during such time. As a result, we will be primarily dependent on our ability to raise capital through the sale of our securities to fund our operations for the foreseeable future.

Our reliance on third parties to manufacture and store our stem cells and small molecule compounds could adversely impact our business.

We currently outsource most of the manufacturing of our stem cells and small molecule pharmaceutical compounds to third party contractors and as such have limited ability to adequately control the manufacturing process and the safe storage thereof. Any manufacturing or storage irregularity, error, or failure to comply with applicable regulatory procedure would require us to find new third parties to outsource our manufacturing and storage responsibilities or our business would be impacted.

The manufacture of our therapeutic products is a complicated and difficult process, dependent upon substantial know-how and subject to the need for continual process improvements. In addition, our suppliers’ ability to scale-up manufacturing to satisfy the various requirements of our planned clinical trials is uncertain. Additionally, many of the materials that we use to prepare our cell-based products are highly specialized, complex and available from only a limited number of suppliers. The loss of one or more of these sources would likely delay our ability to conduct planned clinical trials and otherwise adversely affect our business.

If we are unable to complete pre-clinical and clinical testing and trials or if clinical trials of our product candidates are prolonged, delayed, suspended, terminated or fail to reach their endpoints, our business and results of operations could be materially harmed.

Although we have commenced a number of trials, the ultimate outcome of the trials is uncertain. On July 25, 2017, we announced that our Phase 2 clinical trial of NSI-189 in MDD failed to achieve statistical significance on its primary endpoint although a subsequent evaluation of the data appeared directionally positive with regard to certain secondary endpoints. If we are unable to satisfactorily complete our other trials, or if such trials also yield unsatisfactory results, we may be unable to obtain regulatory approval for and commercialize our proposed products. No assurances can be given that our clinical trials will be completed or result in successful outcomes. A number of events, including any of the following, could delay the completion of our planned clinical trials and negatively impact our ability to obtain regulatory approval for, and to market and sell, a particular product candidate:

Clinical trials may also be delayed or terminated as a result of ambiguous or negative interim results. In addition, a clinical trial may be suspended or terminated by us, the FDA, clinical trial site IRB’s, or a data safety monitoring board, or DSMB, overseeing the clinical trial at issue, or other regulatory authorities due to a number of factors. Additionally, changes in regulatory requirements and guidance may occur and we may need to amend clinical trial protocols to reflect these changes. Amendments may require us to resubmit our clinical trial protocols to IRBs for reexamination, which may impact the cost, timing or successful completion of a clinical trial. We do not know whether our clinical trials will be conducted as planned, will need to be restructured or will be completed on schedule, if at all. Delays in our clinical trials will result in increased development costs for our drug candidates. In addition, if we experience delays in the completion of, or if we terminate, any of our clinical trials, the commercial prospects for our drug candidates may be harmed and our ability to generate product revenues will be jeopardized. Furthermore, many of the factors that cause, or lead to, a delay in the commencement or completion of clinical trials may also ultimately lead to the denial of regulatory approval of a drug candidate. If regulatory authorities do not approve our products or if we fail to maintain regulatory compliance, we would be unable to commercialize our proposed products, and our business and results of operations could be materially harmed.

The results of pre-clinical studies and clinical trials may not be predictive of the results of our later-stage clinical trials and our proposed products may not have favorable results in later-stage clinical trials or receive regulatory approval.

Seemingly positive results from pre-clinical studies or clinical studies should not be relied upon as evidence that our clinical trials will succeed. Even if our product candidates achieve positive results in pre-clinical studies or during our Phase 1 and Phase 2 studies, we will be required to demonstrate through further clinical trials that our product candidates are safe and effective for use in a diverse population before we can seek regulatory approvals for their commercial sale. There is typically an extremely high rate of attrition from the failure of product candidates as they proceed through clinical trials. If any product candidate fails to demonstrate sufficient safety and efficacy in any clinical trial, then we may experience potentially significant delays in, or be required to abandon development of that product candidate. Additionally, failure to demonstrate safety and efficacy results acceptable to the FDA in later stage trials could impair our development prospects and even prevent regulatory approval of our current and future product candidates. Any such delays or abandonment in our development efforts of any of our product candidates would materially impair our ability to generate revenues.

We are subject to numerous risks inherent in conducting clinical trials.

We outsource the management of our clinical trials to third parties. Agreements with clinical investigators and medical institutions for clinical testing and with other third parties for data management services, place substantial responsibilities on these parties that, if unmet, could result in delays in, or termination of, our clinical trials. For example, if any of our clinical trial sites fail to comply with FDA-approved good clinical practices, we may be unable to use the data gathered at those sites. If these clinical investigators, medical institutions or other third parties do not carry out their contractual duties or obligations or fail to meet expected deadlines, or if the quality or accuracy of the clinical data they obtain is compromised due to their failure to adhere to our clinical protocols or for other reasons, our clinical trials may be extended, delayed or terminated, and we may be unable to obtain regulatory approval for, or successfully commercialize, our proposed products. Delays in recruitment, lack of clinical benefit or unacceptable side effects would delay or prevent the completion of our clinical trials.

We or our regulators may suspend or terminate our clinical trials for a number of reasons. We may voluntarily suspend or terminate our clinical trials if at any time we believe they present an unacceptable risk to the patients enrolled in our clinical trials or do not demonstrate clinical benefit. In addition, regulatory agencies may order the temporary or permanent discontinuation of our clinical trials at any time if they believe that the clinical trials are not being conducted in accordance with applicable regulatory requirements or that they present an unacceptable safety risk to the patients enrolled in our clinical trials.

Our clinical trial operations are subject to regulatory inspections at any time. If regulatory inspectors conclude that we or our clinical trial sites are not in compliance with applicable regulatory requirements for conducting clinical trials, we may receive reports of observations or warning letters detailing deficiencies, and we will be required to implement corrective actions. If regulatory agencies deem our responses to be inadequate, or are dissatisfied with the corrective actions we or our clinical trial sites have implemented, our clinical trials may be temporarily or permanently discontinued, we may be fined, we or our investigators may be precluded from conducting any ongoing or any future clinical trials, the government may refuse to approve our marketing applications or allow us to manufacture or market our products, and we may be criminally prosecuted.

The lengthy approval process as well as the unpredictability of future clinical trial results may result in our failing to obtain regulatory approval for our proposed products, which would materially harm our business, results of operations and prospects.

We may be subject to litigation that will be costly to defend or pursue and uncertain in its outcome.

Our business may bring us into conflict with licensees, licensors, or others with whom we have contractual or other business relationships or with our competitors or others whose interests differ from ours. If we are unable to resolve these conflicts on terms that are satisfactory to all parties, we may become involved in litigation brought by or against such parties. Any litigation is likely to be expensive and may require a significant amount of management's time and attention, at the expense of other aspects of our business. The outcome of litigation is always uncertain, and in some cases, could include judgments against us which could have a materially adverse effect on our business.

We may not be able to obtain government or third-party payor coverage and reimbursement.

Our ability to successfully commercialize our product candidates, if approved, depends to a significant degree on the ability of patients to be reimbursed for the costs of such products and related treatments. We cannot assure you that reimbursement in the U.S. or in foreign countries will be available for any products developed, or, if available, will not decrease in the future, or that reimbursement amounts will not reduce the demand for, or the price of, our products. There is considerable pressure to reduce the cost of therapeutic products. Government and other third-party payors are increasingly attempting to contain health care costs by limiting both coverage and the level of reimbursement for new therapeutic products and by refusing, in some cases, to provide any coverage for uses of approved products for disease indications for which the FDA or other relevant authority has not granted marketing approval. Moreover, in some cases, government and other third-party payors have refused to provide reimbursement for uses of approved products for disease indications for which the FDA or other relevant authority has granted marketing approval. Significant uncertainty exists as to the reimbursement status of newly approved health-care products or novel therapies such as ours. We cannot predict what additional regulation or legislation relating to the health care industry or third-party coverage and reimbursement may be enacted in the future or what effect such regulation or legislation may have on our business. If additional regulations are overly onerous or expensive or if healthcare related legislation makes our business more expensive or burdensome than originally anticipated, we may be forced to significantly downsize our business plans or completely abandon the current business model.

Our products may not be profitable due to manufacturing costs and our inability to receive favorable pricing.

Our products may be significantly more expensive to manufacture than other drugs or therapies currently on the market today due to a fewer number of potential manufacturers, greater level of needed expertise and other general market conditions affecting manufacturers of our proposed products. Even if we can receive approval for the reimbursement of our proposed products the amount of reimbursement may be significantly less than the manufacturing costs of our products. Additionally, other market factors may limit the price which we can charge for our proposed products while still being competitive. Accordingly, even if we are successful in developing our proposed products, we may not be able to charge a high enough price for us to earn a profit.

We are dependent on the acceptance of our products by the healthcare community.

Our product candidates, if approved for marketing, may not achieve market acceptance since hospitals, physicians, patients or the medical community, in general, may decide not to accept and utilize these products. The products that we are attempting to develop represent substantial departures from established treatment methods and will compete with a number of more conventional therapies marketed by major pharmaceutical companies. If the healthcare community does not accept our products for any reason, our business will be materially harmed.

We depend on a limited number of employees and consultants for our continued operations and future success.

We are highly dependent on a limited number of employees and outside consultants.  Although we have entered into employment and consulting agreements with these parties, these agreements can be terminated at any time.  The loss of any of our employees or consultants could adversely affect our opportunities and materially harm our future prospects.  In addition, we anticipate growth and expansion into areas and activities requiring additional expertise, such as clinical testing, regulatory compliance, manufacturing and marketing.  We anticipate the need for additional management personnel as well as the development of additional expertise by existing management personnel. There is intense competition for qualified personnel in the areas of our present and planned activities, and there can be no assurance that we will be able to attract and retain the qualified personnel necessary for the development our business.

The employment contract of Dr. Carter contains significant anti-termination provisions which could make changes in management difficult or expensive.

We have entered into an employment agreement with Dr. Carter, our Executive Chairman and Principal Financial Officer. This agreement may require the payment of severance in the event he ceases to be employed. The provision makes the replacement of Dr. Carter very costly and could cause difficulty in effecting any required changes in management or a change in control.

Our competition has significantly greater experience and financial resources.

The biotechnology industry is characterized by rapid technological developments and a high degree of competition. We compete against numerous companies, many of which have substantially greater resources. Several such enterprises have initiated cell therapy research programs and/or efforts to treat the same diseases which we target. Given our current stage of development and resources, it may be extremely difficult for us to compete against more developed companies.

As a result, our proposed products could become obsolete before we recoup any portion of our related research and development and commercialization expenses. Competition in the biopharmaceutical industry is based significantly on scientific and technological factors. These factors include the availability of patent and other protection for technology and products, the ability to commercialize technological developments and the ability to obtain governmental approval for testing, manufacturing and marketing. We compete with specialized biopharmaceutical firms in the United States, Europe and elsewhere, as well as a growing number of large pharmaceutical companies that are applying biotechnology to their operations. Many major pharmaceutical companies have developed or acquired internal biotechnology capabilities or made commercial arrangements with other biopharmaceutical companies. These companies, as well as academic institutions and governmental agencies and private research organizations, also compete with us in recruiting and retaining highly qualified scientific personnel and consultants. Our ability to compete successfully with other companies in the pharmaceutical field will also depend to a considerable degree on the continuing availability of capital to us.

We believe that our proposed products under development and in pre-clinical testing and clinical trials will address unmet medical needs for those indications for which we are focusing our development efforts. Our competition will be determined in part by the potential indications for which our proposed products are developed and ultimately approved by regulatory authorities. Additionally, the timing of market introduction of some of our proposed products or of competitors’ products may be an important competitive factor. Accordingly, the relative speed with which we can develop our proposed products, complete preclinical testing, clinical trials and approval processes and supply commercial quantities to market is expected to be important competitive factors. We expect that competition among products approved for sale will be based on various factors, including product efficacy, safety, reliability, availability, price and patent position. 

Our outsource model depends on third parties to assist in developing and testing our proposed products.

Our strategy for the development, clinical and pre-clinical testing and commercialization of our proposed products is based on an outsource model. This model requires us to engage third parties in order to further develop our technology and products as well as for the day to day operations of our business. In the event we are not able to enter into such relationships in the future, our ability to operate and develop products may be seriously hindered or we may be required to spend considerable time and resources to bring such functions in-house. Either outcome could result in our inability to develop a commercially feasible product or in the need for substantially more working capital to complete the research in-house.

The commercialization of therapeutic products exposes us to product liability claims.

Product liability claims could result in substantial litigation costs and damage awards against us. We attempt to mitigate this risk by obtaining and maintaining appropriate insurance coverage. Historically, we have obtained liability insurance that covers our clinical trials. If we begin commercializing products, we will need to increase our insurance coverage. We may not be able to obtain insurance on acceptable terms, if at all, and the policy limits on our insurance policies may be insufficient to cover our potential liabilities.

We currently rely heavily upon third party FDA-regulated manufacturers and suppliers for our products

We currently manufacture our cells both in-house and on an outsource basis. We outsource the manufacturing of our pharmaceutical compound to third party manufacturers. We manufacture cells in-house which are not required to meet stringent FDA requirements. We use these cells in our research and collaborative programs. At present, we outsource all the manufacturing and storage of our stem cells and pharmaceuticals compound to be used in clinical testing, and which are subject to higher FDA requirements, to Charles River Laboratories, Inc., of Wilmington, Massachusetts (stem cells) and Albany Molecular Resources, Inc. (small molecule). Failure by our contract manufacturer to achieve and maintain high manufacturing standards could result in patient injury or death, product recalls or withdrawals, delays or failures in testing or delivery, cost overruns, or other problems that could seriously hurt our business. Contract manufacturers may encounter difficulties involving production yields, quality control, and quality assurance. These manufacturers are subject to ongoing periodic and unannounced inspections by the FDA and corresponding state and foreign agencies to ensure strict compliance with cGMPs, GTPs and other applicable government regulations and corresponding foreign standards; however, we do not have control over third-party manufacturers’ compliance with these regulations and standards.

Because manufacturing facilities are subject to regulatory oversight and inspection, failure to comply with regulatory requirements could result in material manufacturing delays and product shortages, which could delay or otherwise negatively impact our clinical trials and product development. Moreover, we do not have quantity or volume commitment orders from these manufacturers, and we cannot assure you that the manufacturers will be able to manufacture in the quantity we require on a timely basis or at all. In the event we are required to seek alternative third-party suppliers or manufacturers, they may require us to purchase a minimum amount of materials or could require other unfavorable terms. Any such event would materially impact our business prospects and could delay the development of our products. Moreover, there can be no assurance that any manufacturer or supplier that we select will be able to supply our products in a timely or cost-effective manner or in accordance with applicable regulatory requirements or our specifications. In addition, due to the novelty of our products and product development, there can be no assurances that we would be able to find other suitable third-party FDA-regulated manufacturers on a timely basis and at terms reasonable to us. Even if we were to locate alternative manufacturers there may be delays before they are able to begin manufacturing. Failure to secure such third-party manufacturers or suppliers would materially impact our business.

We rely on third parties to conduct our clinical trials and perform data collection and analysis, which may result in costs and delays that prevent us from successfully commercializing our product candidates.

We do not have the in-house capability to conduct clinical trials for our product candidates. We rely, and will rely in the future, on medical institutions, clinical investigators, contract research organizations, contract laboratories, and collaborators to perform data collection and analysis and other aspects of our clinical trials. Our reliance on these third parties for clinical development activities results in reduced control over these activities. Furthermore, these third parties may also have relationships with other entities, some of which may be our competitors. Our preclinical activities or clinical trials conducted in reliance on third parties may be delayed, suspended, or terminated if:

Third party performance failures may increase our development costs, delay our ability to obtain regulatory approval, and delay or prevent the commercialization of our product candidates. While we believe that there are numerous alternative sources to provide these services, in the event that we seek such alternative sources, we may not be able to enter into replacement arrangements without incurring delays or additional costs.

Risks Relating to Intellectual Property

We may not be able to withstand challenges to our intellectual property rights.

We rely on our intellectual property, including issued and applied-for patents, as the foundation of our business. Our intellectual property rights may come under challenge. No assurances can be given that our current and potential future patents will survive such challenges. These cases are complex, lengthy, expensive, and could potentially be adjudicated adversely to our interests, removing the protection afforded by an issued patent. The viability of our business would suffer if such patent protection were limited or eliminated. Moreover, the costs associated with defending or settling intellectual property claims would likely have a material adverse effect on our business and future prospects.

We may not be able to adequately protect against the piracy of the intellectual property in foreign jurisdictions.

We conduct research in countries outside of the U.S., including through our subsidiary in the People’s Republic of China. Several of our competitors are located in these countries and may be able to access our technology or test results. The laws protecting intellectual property in some of these countries may not adequately protect our trade secrets and intellectual property. The misappropriation of our intellectual property may materially impact our position in the market and any competitive advantages, if any, that we may have.

We may infringe the intellectual property rights of others and may not be able to obtain necessary licenses to third-party patents and other rights.

A number of companies, universities and research institutions have filed patent applications or have received patents relating to technologies in our field. We cannot predict which, if any, of these applications will issue as patents or how many of these issued patents will be found valid and enforceable. There may also be existing issued patents on which we would infringe by the commercialization of our product candidates. If so, we may be prevented from commercializing these products unless the third party is willing to grant a license to us. We may be unable to obtain licenses to the relevant patents at a reasonable cost, if at all, and may also be unable to develop or obtain alternative non-infringing technology. If we are unable to obtain such licenses or develop non-infringing technology at a reasonable cost, our business could be significantly harmed. Also, any infringement lawsuits commenced against us may result in significant costs, divert our management’s attention and result in an award against us for substantial damages, or potentially prevent us from continuing certain operations.

Risks Relating to Our Common Stock

The market price for our common shares is particularly volatile.

The market for our common shares is characterized by significant price volatility when compared to seasoned issuers, and we expect that our share price will continue to be more volatile than those of a seasoned issuer. The volatility in our share price is attributable to a number of factors. Mainly however, we are a speculative or “risky” investment due to our limited operating history, lack of significant revenues to date and the uncertainty of FDA approval. By way of example, in October of 2018, we completed a registered direct offering of 3,000,000 shares of our common stock and a simultaneous private placement of 3,000,000 common stock purchase warrants. Shortly thereafter, the market price or our common stock decreased substantially. As a consequence of this enhanced risk, more risk-adverse investors may, under the fear of losing all or most of their investment in the event of negative news or lack of progress, be more inclined to sell their shares on the market more quickly and at greater discounts than would be the case with the stock of a seasoned issuer. Additionally, in the past, plaintiffs have often initiated securities class action litigation against a company following periods of volatility in the market price of its securities. We may in the future be the target of similar litigation. Securities litigation could result in substantial costs and liabilities and could divert management’s attention and resources.

The following factors may add to the volatility in the price of our common shares: actual or anticipated variations in our quarterly or annual operating results; the results of clinical trials for our product candidates; FDA’s determination with respect to filings for new clinical studies, new drug applications and new indications; government regulations; announcements of significant acquisitions, strategic partnerships or joint ventures; our capital commitments; offerings of our securities and additions or departures of our key personnel. Many of these factors are beyond our control and may decrease the market price of our common shares, regardless of our operating performance. We cannot make any predictions or projections as to what the prevailing market price for our common shares will be at any time, including as to whether our common shares will sustain their current market prices, or as to what effect the sale of shares or the availability of common shares for sale at any time will have on the prevailing market price.

Future sales of our common stock could cause our stock price to fall.

In October of 2018, we completed a registered direct offering of 3,000,000 shares of our common stock or approximately 20% of our issued and outstanding shares, as well as a private placement of an equal number of common stock purchase warrants. Transactions that result in a large amount of newly issued shares that are readily tradable, or other events that cause current stockholders to sell shares, could place downward pressure on the trading price of our common stock. In addition, the lack of a robust trading market may require a stockholder who desires to sell a large number of shares of common stock to sell the shares in increments over time to mitigate any adverse impact of the sales on the market price of our stock. If our stockholders sell, or the market perceives that our stockholders intend to sell for various reasons, substantial amounts of our common stock in the public market, including shares issued upon the exercise of outstanding options or warrants, the market price of our common stock could fall. Sales of a substantial number of shares of our common stock may make it more difficult for us to sell equity or equity-related securities in the future at a time and price that we deem reasonable or appropriate. We may become involved in securities class action litigation that could divert management’s attention and harm our business.

Certain of our outstanding common stock purchase warrants contain price protection provisions (anti-dilution protection) in the event that we sell our securities at prices lower than the current exercise price of such warrants, which may have a negative impact on the trading price of our common stock or impair our ability to raise capital.

As of March 31, 2019, we had 2,982,709 common stock purchase warrants outstanding that were issued in our May 2016 registered offering, May 2016 private placement and August 2017 registered offering that all contain price protection provisions in the event that we sell securities at a price per share below their respective exercise prices (collectively “Price Protection Warrants”). Pursuant to our October 2018 registered offering, the Price Protection Warrants all had their exercise prices adjusted to $0.57 per share. On June 13, 2019, the closing price of our common stock was $0.38. In the event that we sell securities at a price per share lower than the current exercise price of the Price Protection Warrants, their exercise prices will be further reduced. Any future adjustments to the exercise prices of the Price Protection Warrants may have a negative impact on the trading price of our common stock. Additionally, raising additional capital with new investors may be difficult as a result of the adjustment feature.

The requirements of being a public company may strain our resources, divert management’s attention and affect our ability to attract and retain qualified board members.

As a public company, we incur significant legal, accounting and other expenses that we would not incur as a private company, including costs associated with public company reporting requirements. We also incur costs associated with the Sarbanes-Oxley Act of 2002, as amended, the Dodd-Frank Wall Street Reform and Consumer Protection Act and related rules implemented or to be implemented by the SEC and the Nasdaq. The expenses incurred by public companies generally for reporting, insurance and corporate governance purposes have been increasing. We expect these rules and regulations to increase our legal and financial compliance costs and to make some activities more time-consuming and costly. These laws and regulations could also make it more difficult or costly for us to obtain certain types of insurance, including director and officer liability insurance, and we may be forced to accept reduced policy limits and coverage or incur substantially higher costs to obtain the same or similar coverage. These laws and regulations could also make it more difficult for us to attract and retain qualified persons to serve on our board of directors, our board committees or as our executive officers and may divert management’s attention. Furthermore, if we are unable to satisfy our obligations as a public company, we could be subject to delisting of our common stock, fines, sanctions and other regulatory action and potentially civil litigation.

We have never paid a cash dividend and do not intend to pay cash dividends on our common stock in the foreseeable future.

We have never paid a cash dividend, nor do we anticipate paying cash dividends in the foreseeable future. Accordingly, any return on your investment will be as a result of the appreciation of our common stock if any.

Our anti-takeover provisions may delay or prevent a change of control, which could adversely affect the price of our common stock.

Our amended and restated certificate of incorporation and amended and restated bylaws contain provisions that may make it difficult to remove our board of directors and management and may discourage or delay “change of control” transactions, which could adversely affect the price of our common stock. These provisions include, among others:

If securities or industry analysts do not publish research reports, or publish unfavorable research about our business, the price and trading volume of our common stock could decline.

The trading market for our common stock will depend in part on the research and reports that securities or industry analysts publish about us and our business. We currently have limited research coverage by securities and industry analysts. In the event an analyst downgrades our securities the price of our securities would likely decline. If analysts cease to cover us or fails to publish regular reports on us, interest in our securities could decrease, which could cause the price of our common stock and other securities and their trading volume to decline.

Our board of directors has broad discretion to issue additional securities, which might dilute the net tangible book value per share of our common stock for existing stockholders.

We are entitled under our certificate of incorporation to issue up to 300,000,000 shares of common stock and 7,000,000 “blank check” shares of preferred stock. Shares of our blank check preferred stock provide our board of directors with broad authority to determine voting, dividend, conversion, and other rights. As of March 31, 2019, we have issued and outstanding 18,205,060 shares of common stock and we have 14,757,307 shares of common stock reserved for future grants under our equity compensation plans and for issuances upon the exercise or conversion of currently outstanding options, warrants and convertible securities. As of March 31, 2019, we had 1,000,000 shares of preferred stock issued and outstanding which are convertible into 3,887,387 shares of our common stock. Accordingly, as of March 31, 2019, we are entitled to issue up to 267,037,639 additional shares of common stock and 6,000,000 additional shares of “blank check” preferred stock. Our board may generally issue those common and preferred shares, or convertible securities to purchase those shares, without further approval by our shareholders. Any preferred shares we may issue will have such rights, preferences, privileges and restrictions as may be designated from time-to-time by our board, including preferential dividend rights, voting rights, conversion rights, redemption rights and liquidation provisions. It is likely that we will be required to issue a large amount of additional securities to raise capital in order to further our development and marketing plans. It is also likely that we will be required to issue a large amount of additional securities to directors, officers, employees and consultants as compensatory grants in connection with their services, both in the form of stand-alone grants or under our various stock plans. The issuance of additional securities may cause substantial dilution to our shareholders.

Risks Related to Government Regulation and Approval of our Product Candidates.

The regulatory approval processes of the FDA and comparable foreign authorities are lengthy, time consuming and inherently unpredictable, and our products may not receive regulatory approval.

The time required to obtain approval by the FDA and comparable foreign authorities is inherently unpredictable but typically takes many years following the commencement of clinical trials and depends upon numerous factors, including the substantial discretion of the regulatory authorities. In addition, approval policies, regulations, or the type and amount of clinical data necessary to gain approval may change during the course of a drug candidate’s clinical development and may vary among jurisdictions. We have not obtained regulatory approval for any product candidate and it is possible that none of our existing product candidates or any product candidates we may seek to develop in the future will ever obtain regulatory approval.

Our drug candidates could fail to receive regulatory approval for many reasons, including the following:

We are currently undertaking clinical trials for our lead products candidates NSI-189 and NSI-566.  We cannot assure you that we will successfully complete any clinical trials in connection with such INDs.  Further, we cannot predict when we might first submit any product license application (NDA or BLA) for FDA approval or whether any such product license application will be granted on a timely basis, if at all.   Any delay in obtaining, or failure to obtain, such approvals could have a material adverse effect on the marketing of our products and our ability to generate product revenue.

Development of our product candidates is subject to extensive government regulation.

Our research and development efforts, as well as any future clinical trials, and the manufacturing and marketing of any products we may develop, will be subject to, and restricted by, extensive regulation by governmental authorities in the U.S. and other countries. The process of obtaining FDA and other necessary regulatory approvals is lengthy, expensive and uncertain. FDA and other legal and regulatory requirements applicable to our proposed products could substantially delay or prevent us from initiating additional clinical trials. We may fail to obtain the necessary approvals to commence clinical testing or to manufacture or market our potential products in reasonable time frames, if at all. In addition, the U.S. Congress and other legislative bodies may enact regulatory reforms or restrictions on the development of new therapies that could adversely affect the regulatory environment in which we operate or the development of any products we may develop.

A substantial portion of our research and development entails the use of stem cells obtained from human tissue. The U.S. federal and state governments and other jurisdictions impose restrictions on the acquisition and use of human tissue, including those incorporated in federal Good Tissue Practice, or “GTP,” regulations. These regulatory and other constraints could prevent us from obtaining cells and other components of our products in the quantity or of the quality needed for their development or commercialization. These restrictions change from time to time and may become more onerous. Additionally, we may not be able to identify or develop reliable sources for the cells necessary for our potential products — that is, sources that follow all state and federal laws and guidelines for cell procurement. Certain components used to manufacture our stem and progenitor cell product candidates will need to be manufactured in compliance with the FDA’s GMP. Accordingly, we will need to enter into supply agreements with companies that manufacture these components to GMP standards. There is no assurance that we will be able to enter into any such agreements.

Noncompliance with applicable regulatory requirements can subject us, our third party suppliers and manufacturers and our other collaborators to administrative and judicial sanctions, such as, among other things, warning letters, fines and other monetary payments, recall or seizure of products, criminal proceedings, suspension or withdrawal of regulatory approvals, interruption or cessation of clinical trials, total or partial suspension of production or distribution, injunctions, limitations on or the elimination of claims we can make for our products, refusal of the government to enter into supply contracts or fund research, or government delay in approving or refusal to approve new drug applications.

We cannot predict if or when we will be able to commercialize our products due to regulatory constraints.

Federal, state and local governments and agencies in the U.S. (including the FDA) and governments in other countries have significant regulations in place that govern many of our activities.  We are, or may become, subject to various federal, state and local laws, regulations and recommendations relating to safe working conditions, laboratory and manufacturing practices, the experimental use of animals and the use and disposal of hazardous or potentially hazardous substances used in connection with its research and development work. The preclinical testing and clinical trials of our proposed products are subject to extensive government regulation that may prevent us from creating commercially viable products. In addition, our sale of any commercially viable product will be subject to government regulation from several standpoints, including manufacturing, advertising, marketing, promoting, selling, labeling and distributing.  If, and to the extent that, we are unable to comply with these regulations, our ability to earn revenues, if any, will be materially and negatively impacted.

If our clinical trials fail to demonstrate that any of our product candidates are safe and effective for the treatment of particular diseases, the FDA may require us to conduct additional clinical trials or may not grant us marketing approval for such product candidates for those diseases.

We are not permitted to market our product candidates in the United States until we receive approval of a BLA or NDA from the FDA. Before obtaining regulatory approvals for the commercial sale of any product candidate for a target indication, we must demonstrate with evidence gathered in preclinical and well-controlled clinical trials, and, with respect to approval in the United States, to the satisfaction of the FDA and, with respect to approval in other countries, similar regulatory authorities in those countries, that the product candidate is safe and effective for use for that target indication and that the manufacturing facilities, processes and controls used to produce the product are compliant with applicable statutory and regulatory requirements. Our failure to adequately demonstrate the safety and effectiveness of any of our product candidates for the treatment of particular diseases may delay or prevent our receipt of the FDA’s approval and, ultimately, may prevent commercialization of our product candidates for those diseases. The FDA has substantial discretion in deciding whether, based on the benefits and risks in a particular disease, any of our product candidates should be granted approval for the treatment of that particular disease. Even if we believe that a clinical trial or trials has demonstrated the safety and statistically significant efficacy of any of our product candidates for the treatment of a disease, the results may not be satisfactory to the FDA. Preclinical and clinical data can be interpreted by the FDA and other regulatory authorities in different ways, which could delay, limit or prevent regulatory approval. If regulatory delays are significant or regulatory approval is limited or denied altogether, our financial results and the commercial prospects for those of our product candidates involved will be harmed, and our prospects for profitability will be significantly impaired.

Satisfaction of these and other regulatory requirements is costly, time consuming, uncertain, and subject to unanticipated delays. Despite our efforts, our drug candidates may not:

In addition, in the course of its review of a BLA or NDA or other regulatory application, the FDA or other regulatory authorities may conduct audits of the practices and procedures of a company and its suppliers and contractors concerning manufacturing, clinical study conduct, non-clinical studies and several other areas. If the FDA and/or other regulatory authorities conducts an audit relating to a BLA, NDA or other regulatory application and finds a significant deficiency in any of these or other areas, the FDA or other regulatory authorities could delay or not approve such BLA, NDA or other regulatory application. If regulatory delays are significant or regulatory approval is limited or denied altogether, our financial results and the commercial prospects for those of our products or product candidates involved will be harmed, and our prospects for profitability will be significantly impaired.

Both before and after marketing approval, our product candidates are subject to extensive and rigorous ongoing regulatory requirements and continued regulatory review, and if we fail to comply with these continuing requirements, we could be subject to a variety of sanctions.

Both before and after the approval of our product candidates, we, our product candidates, our operations, our facilities, our suppliers, and our contract manufacturers, contract research organizations, and contract testing laboratories are subject to extensive regulation by governmental authorities in the United States and other countries, with regulations differing from country to country. In the United States, the FDA regulates, among other things, the pre-clinical testing, clinical trials, manufacturing, safety, efficacy, potency, labeling, packaging, adverse event reporting, storage, record keeping, quality systems, advertising, promotion, sale and distribution of therapeutic products. These requirements include submissions of safety and other post-marketing information and reports, registration, as well as continued compliance with cGMP, requirements and current good clinical practice, or cGCP, requirements for any clinical trials that we conduct post-approval. Failure to comply with applicable requirements could result in, among other things, one or more of the following actions: restrictions on the marketing of our products or their manufacturing processes, notices of violation, untitled letters, warning letters, civil penalties, fines and other monetary penalties, unanticipated expenditures, delays in approval or refusal to approve a product candidate, suspension or withdrawal of regulatory approvals, product, seizure or detention, voluntary or mandatory product recalls and related publicity requirements, interruption of manufacturing or clinical trials, operating restrictions, injunctions, import or export bans, and criminal prosecution. We or the FDA, or an institutional review board, may suspend or terminate human clinical trials at any time on various grounds, including a finding that subjects are being exposed to an unacceptable health risk.

The FDA’s policies may change, and additional government regulations may be enacted that could prevent, limit or delay regulatory approval of our drug candidates. If we are slow or unable to adapt to changes in existing or new requirements or policies, or if we are not able to maintain regulatory compliance, we may lose any marketing approval that we may have obtained, which would adversely affect our business, prospects and ability to achieve or sustain profitability.

If side effects are identified during the time our drug candidates are in development or after they are approved and on the market, we may choose or be required to perform lengthy additional clinical trials, discontinue development of the affected drug candidate, change the labeling of any such products, or withdraw any such products from the market, any of which would hinder or preclude our ability to generate revenues.

Undesirable side effects caused by our drug candidates could cause us or regulatory authorities to interrupt, delay or halt clinical trials and could result in a more restrictive label or the delay or denial of regulatory approval by the FDA or other comparable foreign authorities. Drug-related side effects could affect patient recruitment or the ability of enrolled patients to complete a trial or result in potential product liability claims. Any of these occurrences may harm our business, financial condition and prospects significantly. Even if any of our drug candidates receives marketing approval, as greater numbers of patients use a drug following its approval, an increase in the incidence of side effects or the incidence of other post-approval problems that were not seen or anticipated during pre-approval clinical trials could result in a number of potentially significant negative consequences, including:

Any of these events could substantially increase the costs and expenses of developing, commercializing and marketing any such drug candidates or could harm or prevent sales of any approved products.

Even if our product candidates receive regulatory approval in the United States, we may never receive approval or commercialize our products outside of the United States.

In order to market any products outside of the United States, we must establish and comply with numerous and varying regulatory requirements of other countries regarding safety and efficacy. Approval procedures vary among countries and can involve additional product testing and additional administrative review periods. The time required to obtain approval in other countries might differ from that required to obtain FDA approval. The regulatory approval process in other countries may include all of the risks detailed above regarding FDA approval in the United States as well as other risks. Regulatory approval in one country does not ensure regulatory approval in another, but a failure or delay in obtaining regulatory approval in one country may have a negative effect on the regulatory process in others. Failure to obtain regulatory approval in other countries or any delay or setback in obtaining such approval would impair our ability to develop foreign markets for our drug candidates.

Our product candidates for which we intend to seek approval as biologic products may face competition sooner than anticipated.

We expect our stem cell product candidates to be regulated by the FDA as biologic products and we intend to seek approval for these products pursuant to the BLA pathway. The Biologics Price Competition and Innovation Act of 2009, or BPCIA, created an abbreviated pathway for the approval of biosimilar and interchangeable biologic products. The abbreviated regulatory pathway establishes legal authority for the FDA to review and approve biosimilar biologics, including the possible designation of a biosimilar as “interchangeable” based on its similarity to an existing brand product. Under the BPCIA, an application for a biosimilar product cannot be approved by the FDA until 12 years after the original branded product was approved under a BLA. The law is complex and is still being interpreted and implemented by the FDA. As a result, its ultimate impact, implementation, and meaning are subject to uncertainty. While it is uncertain when such processes intended to implement BPCIA may be fully adopted by the FDA, any such processes could have a material adverse effect on the future commercial prospects for our biologic products.

We believe that any of our product candidates approved as a biologic product under a BLA should qualify for the 12-year period of exclusivity. However, there is a risk that this exclusivity could be shortened due to congressional action or otherwise, or that the FDA will not consider our drug candidates to be reference products for competing products, potentially creating the opportunity for generic competition sooner than anticipated. Moreover, the extent to which a biosimilar, once approved, will be substituted for any one of our reference products in a way that is similar to traditional generic substitution for non-biologic products is not yet clear, and will depend on a number of marketplace and regulatory factors that are still developing.

We are subject to healthcare laws, regulation and enforcement and our failure to comply with those laws could adversely affect our business, operations and financial condition.

Even though we do not and will not control referrals of healthcare services or bill directly to Medicare, Medicaid or other third-party payors, certain federal and state healthcare laws and regulations pertaining to fraud and abuse and patients’ rights are and will be applicable to our business. We could be subject to healthcare fraud and abuse and patient privacy regulation by both the federal government and the states in which we conduct our business. The regulations that may affect our ability to operate include, without limitation:

In addition, recent healthcare reform legislation has strengthened these laws. For example, the ACA, among other things, amended the intent requirement of the Federal Anti-Kickback Statute and criminal healthcare fraud statutes. A person or entity no longer needs to have actual knowledge of the statute or specific intent to violate it. In addition, the ACA provides that the government may assert that a claim including items or services resulting from a violation of the Federal Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the False Claims Act.

These laws and regulations are broad in scope and they are subject to change and evolving interpretations, which could require us to incur substantial costs associated with compliance or to alter one or more of our sales or marketing practices. In addition, any action against us for violation of these laws, even if we successfully defend against it, could cause us to incur significant legal expenses and divert our management’s attention from the operation of our business. If our operations are found to be in violation of any of the laws described above or any other governmental regulations that apply to us, we may be subject to penalties, including civil and criminal penalties, damages, fines, the exclusion from participation in federal and state healthcare programs, imprisonment, or the curtailment or restructuring of our operations, any of which could adversely affect our ability to operate our business and our financial results.

Failure to comply with domestic and international privacy and security laws can result in the imposition of significant civil and criminal penalties. The costs of compliance with these laws, including protecting electronically stored information from cyberattacks, and potential liability associated with failure to do so could adversely affect our business, financial condition and results of operations. We are subject to various domestic and international privacy and security regulations, including but not limited to HIPAA. HIPAA mandates, among other things, the adoption of uniform standards for the electronic exchange of information in common healthcare transactions, as well as standards relating to the privacy and security of individually identifiable health information, which require the adoption of administrative, physical and technical safeguards to protect such information. In addition, many states have enacted comparable laws addressing the privacy and security of health information, some of which are more stringent than HIPAA.

CAUTIONARYSPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus includes “forward-looking” statementsand any applicable prospectus supplement or free writing prospectus, including the documents that we incorporate by reference herein and therein, contain “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act.“Exchange Act”. These statements relate to future events or to our business development plans, clinical trials, regulatory reviews, timing, strategies, expectations, anticipated expenses levels, business prospectsfuture operating or financial performance and positioning with respect to the market, business outlook, technology spending and various other matters (including contingent liabilities and obligations and changes in accounting policies, standards and interpretations) and express our current intentions, beliefs, expectations, strategies or predictions, as well as historical information. Such forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements or industry results, to be materially different from anticipatedany future results, performanceperformances or achievements expressed or implied by such forward-looking statements. When used in this prospectus, statements that are not statements of current or historical fact may be deemed to be forward-looking statements. Without limiting the foregoing, the words “plan,” “intend,” “may,” “will,” “expect,” “believe,” “could,” “anticipate,” “estimate,” or “continue” or similar expressions or other variations or comparable terminology are intended to identify such forward-looking statements. Although we believe that the assumptions on which the forward-looking statements contained herein are based are reasonable, any of those assumptions could prove to be inaccurate given the inherent uncertainties as to the occurrence or nonoccurrence of future events. These statements are not guarantees of future performance and involve risks and uncertainties that are difficult to predict. Our future operating results are dependent upon many factors, and our further development is highly dependent on market acceptance, which is outside its control. You should not place undue reliance on forward-looking statements. Forward-looking statements may include, but are not be realized duelimited to, a variety of factors, including, without limitation:

statements about:

AllIn some cases, you can identify forward-looking statements attributableby terms such as “may,” “will,” “intend,” “should,” “could,” “would,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “projects,” “predicts,” “potential” and similar expressions intended to usidentify forward-looking statements. These statements reflect our current views with respect to future events and are expressly qualifiedbased on assumptions and are subject to risks and uncertainties. As such, our actual results may differ significantly from those expressed in their entirety byany forward-looking statements. Given these and other factors. We undertake no obligation to update or reviseuncertainties, you should not place undue reliance on these forward-looking statements, whether to reflect events or circumstances after the date initially filed, to reflect the occurrence of unanticipated events or otherwise, except to the extent required by federal securities laws. The risks discussed in this report should be considered in evaluating our business and future financial performance.

USE OF PROCEEDSstatements.

We estimate thatdiscuss many of these risks in greater detail under the net proceeds of the sale of      shares of common stock that we are offering pursuant toheading “Risk Factors” in this prospectus, will be approximately $     (or $    if the underwriters exercise their over-allotment option in full), based on the public offering price of $    per share, and after deducting estimated underwriting discounts and estimated offering expenses of $    to $    , respectively, payable by us. 

Except as otherwise described in any free writing prospectus that we may authorize to be furnished to you, we currently intend to use the net proceeds from this offering for the further development of our stem cell and small molecule assets, advancement of the Company’s acquisition and in-licensing strategy and general corporate purposes

We have not determined the amounts we plan to spend on any of the areas listed above or the timing of these expenditures. As a result, our management will have broad discretion to allocate the net proceeds from this offering. Pending application of the net proceeds as described above, we expect to invest the net proceeds in short-term, interest-bearing, investment-grade securities.

Market Information

Our common stock is traded on The Nasdaq Capital Market under the symbol "CUR."

Holders

As of March 31, 2019, our common stock was held by approximately 239 record holders. Because many of our shares of common stock are held by brokers and other institutions on behalf of stockholders, we are unable to estimate the total number of stockholders represented by these holders.

Dividends

We have not paid any cash dividends to date and have no plans to do so in the immediate future. Additionally, we are prohibited from paying any cash dividends under the terms of certain agreements to which we are a party.

Equity Compensation Plan Information

The following table sets forth information with respect to our equity compensation plans as of December 31, 2018.

Our 2019 Equity Incentive Plan (“2019 Plan”) was approved by our stockholders on June 12, 2019“Business” and is administered by our board or our compensation committee. The 2019 Plan provides for the grant of incentive stock options, nonstatutory stock options, restricted stock, performance units, performance shares, restricted tock units, and other stock-based awards to our employees, directors, and consultants. The purpose of the 2019 Plan is to attract and retain the best available personnel for positions of substantial responsibility, to provide additional incentive to our employees, directors and consultants, and to promote the success of our business. Under the terms of the 2019 Plan, we initially reserved 4,000,00 shares of common stock, subject to an automatic increase on the first day of each calendar year by 4% of the total shares of common stock issued and outstanding on such date. The 2019 Plan further authorized the administrator to amend the exercise price and terms of certain awards thereunder.

Equity Compensation Plans Not Approved by Security Holders

Our Inducement Award Stock Option Plan (“Inducement Plan”) is administered by our board or our compensation committee. The Inducement Plan is intended to be used in connection with the recruiting and inducement of senior management and employees. The issuance of awards under the Inducement Plan is at the discretion of the administrator which has the authority to determine the persons to whom any awards shall be granted and the terms, conditions and restrictions applicable to any award. Pursuant to the Inducement Plan, the Company may grant stock options for up to a total of 2,000,000 shares of common stock to new employees of the Company. As of December 31, 2018, 800,000 grants have been made pursuant to the Inducement Plan. The Inducement Plan is intended to qualify as an inducement plan under NASDAQ Listing Rule 5635(c)(4) and accordingly, the Company did not seek stockholders’ approval.

DILUTION

Our net tangible book value as of March 31, 2019, was approximately $2.5 million, or $0.14 per share of our common stock. Net tangible book value per share of our common stock is determined by dividing total tangible assets (less total tangible liabilities) by the aggregate number of shares of our common stock outstanding as of March 31, 2019. Dilution in net tangible book value per share represents the difference between the amount per share paid by purchasers of shares of common stock in this public offering and the net tangible book value per share of our common stock immediately after this offering.

After giving effect to the sale of     shares of common stock in this public offering at a public offering price of $    per share, and after deducting underwriting discounts and commissions and estimated offering expenses payable by us, our as adjusted net tangible book value as of March 31, 2019 would have been approximately $      million, or approximately $     per share. This represents an immediate dilution of $     per share to new investors purchasing shares of common stock in this offering. The following table illustrates this dilution:

The number of shares of our common stock to be outstanding immediately after this offering is based on 18,205,060 shares of our common stock outstanding as of March 31, 2019 and excludes:

•        1,830,900 shares issued since March 31, 2019 (including 1,808,377 shares issued pursuant to the conversion of 465,191 shares of Series A Preferred 4.5% Convertible Preferred Stock);

•        2,079,010 shares underlying 534,809 outstanding Series A 4.5% Convertible Preferred Stock;

•        2,432,662 shares underlying outstanding options issued pursuant to our equity compensation and inducement plans having a weighted average exercise price of $7.37 per share;

•        7,203,494 shares of our common stock issuable upon exercise of outstanding warrants having a weighted average exercise price of $2.56 per share;

•       33,758 shares of our common stock reserved for issuance upon the vesting and termination of certain transfer restrictions with regard to restricted stock units; and

•       5,181,502 shares of our common stock reserved for issuance pursuant to future grants and/or award under our equity compensation and inducement plans.

The above illustration of dilution per share to investors participating in this offering assumes no exercise of options or warrants to purchase shares of our common stock. The exercise of any such securities will increase dilution to purchasers in this offering.

Because there is no minimum offering amount required as a condition to the closing of this offering, the dilution per share to new investors may be more than that indicated above in the event that the actual number of shares sold, if any, is less than the maximum number of shares of common stock we are offering.

CAPITALIZATION

The following table sets forth our capitalization as of March 31, 2019 on:

•       anactual basis, and

•       anas adjusted basis to reflect (i) our receipt of estimated net proceeds of approximately $       from the sale of shares of common stock in this offering at an assumed public offering price of $      (assuming no exercise of the underwriters’ over-allotment option) and (ii) the anticipated use of such net proceeds, as described under “Use of Proceeds.”

You should read this table in conjunction with “Use of Proceeds,” “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections incorporated by reference from our most recent Annual Report on Form 10-K, and in our Quarterly Reports on Form 10-Q for the quarterly periods ended subsequent to our filing of such Annual Report on Form 10-K, as well as any amendments thereto reflected in subsequent filings with the SEC.

The discussion of risks and uncertainties set forth in those filings is not necessarily a complete or exhaustive list of all risks facing us at any particular time. As a result of these factors, we cannot assure you that the forward-looking statements in this prospectus and incorporated by reference will prove to be accurate. Furthermore, if our forward-looking statements prove to be inaccurate, the inaccuracy may materially impact our business, operations and future prospects. In light of the significant uncertainties in these forward-looking statements, you should not regard these statements as a representation or warranty by us or any other person that we will achieve our objectives and plans in any specified time frame or at all. Forward-looking statements represent our estimates and assumptions only as of the date of the document containing the applicable statement. Unless required by law, we undertake no obligation to update or revise any forward-looking statements to reflect new information or future events or developments. Thus, you should not assume that our silence over time means that actual events are bearing out as expressed or implied in such forward-looking statements. You should read this prospectus, any applicable prospectus supplement, together with the documents that we have filed with the SEC that are incorporated by reference and any free writing prospectus we have authorized for use in connection with this offering, completely and with the understanding that our actual future results may be materially different from what we expect. We qualify all of the forward-looking statements in the foregoing documents by these cautionary statements.

THE OFFERING

RISK FACTORS

Investing in our common stock involves a high degree of risk. Before making an investment decision, you should carefully consider the risks described below and described in the sections entitled “Risk Factors” in our most recent Annual Report on Form 10-K filed with the SEC on March 22, 2023, which are incorporated herein by reference in their entirety, as well as any amendment or updates to our risk factors reflected in subsequent filings with the SEC, including any applicable prospectus supplement. Our business, financial condition, results of operations or prospects could be materially adversely affected by any of these risks. The trading price of our stock could decline due to any of these risks, and you may lose all or part of your investment. This prospectus and the documents incorporated herein by reference also contain forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of certain factors, including the risks mentioned elsewhere in this prospectus.

For more information, see the section entitled “Where You Can Find Additional Information.” Please also read carefully the section entitled “Special Note Regarding Forward-Looking Statements.”

USE OF PROCEEDS

The numberWe are filing the registration statement of which this prospectus is a part to permit holders of the shares of our Common Stock described in the section entitled “Selling Stockholders” to resell their Common Shares and Common Shares upon the exercise of the Prefunded Warrants, Warrants, and Placement Agent Warrants, as applicable. We are not selling any securities under this prospectus and we will not receive any proceeds from the sale of Common Shares by the selling stockholders.

In the event all of the Common Share and Common Shares underlying the Prefunded Warrants, Warrants, and Placement Agent Warrants are exercised for cash, we will receive aggregate gross proceeds of approximately $6.45 million. Any proceeds from the exercise of these warrants will be used for working capital and general corporate purposes. We cannot predict when or if any of the warrants will be exercised for cash, and it is possible that the warrants may expire and never be exercised (except that the Prefunded Warrants do not expire, though the exercise thereof results in de minimis cash). We will bear the out-of-pocket costs, expenses and fees incurred in connection with the registration of shares of our common stockCommon Stock to be outstanding immediately after this offering is based on 18,205,060 sharessold by the selling stockholders, including registration, listing and qualifications fees, printers and accounting fees, and fees and disbursements of our common stock outstanding ascounsel, or collectively, the “Registration Expenses”. Other than Registration Expenses, the selling stockholders will bear underwriting discounts, commissions, placement agent fees or other similar expenses payable with respect to sales of March 31, 2019 and excludes:

• 1,830,900 shares issued since March 31, 2019 (including 1,808,377 shares issued pursuant to the conversion of 465,191 shares of Series A Preferred 4.5% Convertible Preferred Stock);

• 2,079,010 shares underlying 534,809 outstanding Series A 4.5% Convertible Preferred Stock;

• 2,432,662 shares underlying outstanding options issued pursuant to our equity compensation and inducement plans having a weighted average exercise price of $7.37 per share;

• 7,203,494 shares of our common stock issuable upon exercise of outstanding warrants having a weighted average exercise price of $2.56 per share;

• 33,758 shares of our common stock reserved for issuance upon the vesting and termination of certain transfer restrictions with regard to restricted stock units; and

• 5,181,502 shares of our common stock reserved for issuance pursuant to future grants and/or award under our equity compensation and inducement plans.

UNDERWRITINGCommon Shares.

MARKET INFORMATION

Our common stock is listed on The Nasdaq Capital Market under the symbol “PALI”. As of April 5, 2023, we had approximately 172 stockholders of record.” On April 20, 2023, the last reported sale price for our Common Stock on The Nasdaq Capital Market was $1.76 per share.

DIVIDEND POLICY

We do not anticipate declaring or paying, in the foreseeable future, any cash dividends on our capital stock. We intend to retain all available funds and future earnings, if any, to fund the development and expansion of our business, and we do not anticipate paying any cash dividends in the foreseeable future. Any future determination regarding the declaration and payment of dividends, if any, will be at the discretion of our Board and will depend on then-existing conditions, including our financial condition, operating results, contractual restrictions, capital requirements, business prospects and other factors our Board may deem relevant.

CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS

Other than compensation arrangements, including employment, termination of employment and change in control arrangements, with our directors and executive officers, and the other transactions discussed in the sections titled “Executive Compensation” and “Certain Relationships and Related Party Transactions” in our Definitive Proxy Statement on Schedule 14A filed with the SEC on April 21, 2023 and incorporated by reference herein, there have been no transactions since January 1, 2020 that:

Indemnification Agreements

We have entered into an underwriting agreement dated                    , 2019,separate indemnification agreements with as the sole book-running managereach of this offering. Subjectour directors in addition to the termsindemnification provided for in our amended and conditionsrestated certificate of incorporation and amended and restated bylaws. The indemnification agreements, our amended and restated certificate of incorporation and our amended and restated bylaws require us to indemnify its directors, executive officers and certain controlling persons to the underwriting agreement,fullest extent permitted by Delaware law.

SELLING STOCKHOLDERS

On April 3, 2023, the we haveentered into Securities Purchase Agreements with certain institutional and accredited investors, pursuant to which we agreed to sell and issue, in the Registered Offering pursuant to an effective shelf registration statement on Form S-3 an aggregate of 756,317 Common Shares at a purchase price per share of $2.64.

In the concurrent Private Offering, we offered and sold to the underwriterinvestors (i) 455,242 Common Shares, (ii) Prefunded Warrants to purchase up to 1,061,164 shares of Common Stock and (iii) Warrants to purchase an aggregate of 2,272,723 shares of our Common Stock.

The Prefunded Warrants are immediately exercisable, have a perpetual term, an exercise price of $0.0001 per share, and are subject to adjustment in the event of stock splits, dividends, subsequent rights offerings, pro rata distributions, and certain fundamental transactions, as more fully described in the Prefunded Warrants.

The Warrants are immediately exercisable, have a term of five (5) years from issuance, an exercise price of $2.64 per share, and are subject to adjustment in the event of stock splits, dividends, subsequent rights offerings, pro rata distributions, and certain fundamental transactions, as more fully described in the Warrants.

Ladenburg Thalmann & Co. Inc. acted as our exclusive placement agent in connection with the April 2023 Offering. We issued to Ladenburg, Placement Agent Warrants to purchase an aggregate of 136,363 shares of our Common Stock. The Placement Agent Warrants have an exercise price of $3.30 per share and a term of five (5) years.

The Common Shares underlying the Prefunded Warrants, Warrants, and Placement Agent Warrants are referred to collectively as the “Warrant Shares”. The Prefunded Warrants, the Warrants, and the underwriter hasPlacement Agent Warrants are referred to as the “April 2023 Warrants”.

Pursuant to the Private Offering agreements, we agreed to purchase from us, atfile the public offering price less the underwriting discounts and commissions set forth on the cover pageregistration statement of which this prospectus is a part to register the resale of the (i) shares of common stock.Common Stock issued in the Private Offering and (ii) the shares of Common Stock underlying the Prefunded Warrants and Warrants, and to use best efforts to keep such registration statement effective at all times until such date that the applicable Warrant Shares either (i) have been sold, or (ii) may be sold without volume or manner-of-sale restrictions pursuant to Rule 144 and without the requirement for the Company to be in compliance with the current public information requirement under Rule 144.

A copy

Pursuant to this prospectus, we are registering the resale of 3,925,492 shares of Common Stock which consists of (i) 455,242 Common Shares and (ii) 3,470,250 Common Shares issuable upon the exercise of the underwriting agreement has been filed as an exhibitApril 2023 Warrants held by the selling stockholders identified below to permit such selling stockholders, or their permitted transferees or other successors-in-interest that may be identified in a supplement to this prospectus or, if required, a post-effective amendment to the registration statement of which this prospectus is a part. The shares we are offering are being offered by the underwriter subjectpart, to certain conditions specifiedresell or otherwise dispose of these Common Shares in the underwriting agreement.

We have been advised bymanner contemplated under the underwriter that it proposes to offer the shares directly to the public at the public offering price set forth on the cover pagesection entitled “Plan of Distribution” in this prospectus. Any shares sold by the underwriter to securities dealers willprospectus (as may be sold at the public offering price less a selling concession not in excess of $            per share.supplemented and amended).

The underwriting agreement provides that the underwriter's obligation to purchase the shares we are offering is subject to conditions containedselling stockholders may sell some, all or none of their respective Common Shares being registered in the underwriting agreement. The underwriter is obligated to purchase and pay for allthis registration statement. We do not know how long each of the shares offered by this prospectus.

None of the shares included in this offering may be offeredselling stockholders will hold their Common Shares before selling them, and we currently have no agreements, arrangements or sold, directly or indirectly, nor may this prospectus or any other offering material or advertisements in connectionunderstandings with the offer and salesselling stockholders regarding the sale or other disposition of any of the sharesCommon Shares. The Common Shares covered hereby may be distributed or published in any jurisdiction, except under circumstances that will result in compliance with the applicable rules and regulations of that jurisdiction. Persons who receive this prospectus are advised to inform themselves about and to observe any restrictions relating to this offering of the shares and the distribution of this prospectus. This prospectus is neither an offer to sell nor a solicitation of any offer to buy the shares in any jurisdiction where that would not be permitted or legal.

The underwriter has advised us that it does not intend to confirm sales to any accounts over which it exercises discretionary authority.

Underwriting Discounts, Commissions and Expenses

We have agreed to pay an underwriter discount equal to                 % of the aggregate gross proceeds raised in this offering.

The following table shows the public offering price, underwriting discounts and commissions and proceeds, before expenses to us. These amounts are shown assuming both no exercise and full exercise of the underwriter's option to purchase additional shares.

We estimate the total expenses payable by us for this offering to be approximately $             , which amount includes (i) an underwriting discount of $             ($             if the underwriter's option to purchase additional shares is exercised in full), (ii) a management fee equal to               % of the aggregate gross proceeds raised in this offering, (iii) a $             non-accountable expense allowance payable to the underwriter, (iv) reimbursement of the accountable expenses of the underwriter equal to $           including the legal fees of the underwriter being paid by us (none of which has been paid in advance), and (v) other estimated expenses of approximately $         which include legal, accounting, printing costs and various fees associated with the registration and listing of our shares.

Option to Purchase Additional Securities

We have granted the underwriter the option to purchase up to              additional shares of common stock (          % of the shares issued in the offering) at the public offering price per share, less the underwriting discounts and commissions. The underwriter may exercise its option at any time, andoffered from time to time within                   days fromby the date of this prospectus. If any additional shares are purchased pursuant to the option to purchase additional shares of common stock, the underwriter will purchase these shares on the same terms as those on which the shares are being offered hereby.

Nasdaq Capital Market Listing

 Our stock is currently traded on the Nasdaq Capital Market under the symbol "CUR." On           , 2019, the last reported sale price of our common stock was $        per share.

Stabilization, Short Positions and Penalty Bids

The underwriter may engage in syndicate covering transactions, stabilizing transactions and penalty bids or purchases for the purpose of pegging, fixing or maintaining the price of our common stock:

These syndicate covering transactions, stabilizing transactions and penalty bids may have the effect of raising or maintaining the market prices of our shares or preventing or retarding a decline in the market prices of our shares.selling stockholders. As a result, we cannot estimate the pricenumber of our common stock may be higher thanshares of Common Stock each of the price that might otherwise exist inselling stockholders will beneficially own after termination of sales under this prospectus. In addition, the open market. Neither we nor the underwriter make any representation or prediction as to the effect that the transactions described aboveselling stockholders may have sold, transferred or otherwise disposed of all or a portion of their shares of Common Stock since the date on the price of our common stock. These transactions may be effected on the Nasdaq Capital Market, in the over-the-counter market or on any other trading market and, if commenced, may be discontinued at any time.which it provided information for this table.

In connection with this offering, the underwriter also may engage in passive market making transactions in our common stockBeneficial ownership is determined in accordance with Regulation M duringthe rules of the SEC and includes voting or investment power with respect to our Common Stock. Generally, a period before the commencement of offers or sales ofperson “beneficially owns” shares of our common stock in this offering and extending throughif the completionperson has or shares with others the right to vote those shares or to dispose of them, or if the person has the right to acquire voting or disposition rights within 60 days.

Under the terms of the distribution. In general,April 2023 Warrants and certain other warrants held by the selling stockholders, each selling stockholder may not exercise the April 2023 Warrants or such other warrants held by the selling stockholder to the extent such exercise would cause the selling stockholder, together with its affiliates, to beneficially own a passive market maker must display its bid atnumber of shares of Common Stock which would exceed 4.99% or 9.99%, as indicated in such selling stockholder’s applicable warrant, of our then outstanding Common Stock following such exercise, excluding, for purposes of such determination, Common Stock issuable upon exercise of the April 2023 Warrants and such other warrants held by the selling stockholder, which have not been exercised. The number of shares in the second and fourth columns and the percentage in the fourth column reflect this limitation.

The information in the table below and the footnotes thereto regarding shares of Common Stock to be beneficially owned after the offering assumes the exercise of the April 2023 Warrants by the applicable selling stockholder and sale of all Common Shares being offered by the applicable selling stockholder under this prospectus.

* Less than 1%.

(1) Pursuant to Rules 13d-3 and 13d-5 of the Exchange Act, beneficial ownership includes any common shares (“Common Shares”) as to which a price notshareholder has sole or shared voting power or investment power, and also any Common Shares which the shareholder has the right to acquire within 60 days, including upon exercise of Common Share purchase options or warrants. There were 5,781,919 Common Shares outstanding as of April 5, 2023. All shares referenced below are Common Shares.

(2) Includes the sale of all Common Shares and Common Shares underlying Prefunded Warrants, Warrants, and Placement Agent Warrants registered herein.

(3) The shares being registered include the following: (i) 76,140 Common Shares, (ii) 682,063 Common Shares underlying Prefunded Warrants and (iii) 1,136,363 Common Shares underlying Warrants. The 682,063 Prefunded Warrants are subject to 9.99% maximum beneficial ownership limitation and the Warrants are subject to 4.99% maximum beneficial ownership limitation (subject to increase to 9.99% on 61 days notice). The total shares owned before the sale excludes 1,885,492 common shares underlying common stock purchase warrants consisting of (i) 124,932 of the Prefunded Warrants from the Private Placement that would be in excess of the highest independent bid for that security. However, if all independent bids are lowered below9.99% beneficial ownership limitation, (ii) the passive market maker's bid that bid must then be lowered when specific1,136,363 Warrants, (iii) 250 common stock purchase limits are exceeded. Passive market making may stabilize the marketwarrants previously owned with an exercise price of $4,500 per share, (iv) 45,000 common stock purchase warrants previously owned with an exercise price of $55.00 per share, and (v) 578,947 common stock purchase warrants previously owned with an exercise price of $2.375 per share. The total shares owned after the securities at a level above that which might otherwise prevail insales excludes 225,021 of the open market and, if commenced, may be discontinued at any time.

Neither we nor the underwriter make any representation or prediction as to the direction or magnitudepreviously described common stock warrants having an exercise price of any effect that the transactions described above may have on the prices of our securities. In addition, neither we nor the underwriter make any representation that the underwriter will engage in these transactions or that any transactions, once commenced, will not be discontinued without notice.

We have agreed to indemnify the underwriter against certain liabilities, including certain liabilities arising under the Securities Act, or to contribute to payments that the underwriter may be required to make for these liabilities.

DESCRIPTION OF SECURITIES

The following is a summary of our capital stock and provisions of our restated certificate of incorporation and restated by-laws,$2.375 per share as they are in effect asexcess of the date4.99% beneficial ownership limitation. The shares are directly held by Armistice Capital Master Fund Ltd., a Cayman Islands exempted company (the “Master Fund”), and may be deemed to be indirectly beneficially owned by: (i) Armistice Capital, LLC (“Armistice Capital”), as the investment manager of this prospectus. For more detailed information, please see our amendedthe Master Fund; and restated certificate(ii) Steven Boyd, as the Managing Member of incorporationArmistice Capital. Armistice Capital and restated bylaws,Steven Boyd disclaim beneficial ownership of the securities except to the extent of their respective pecuniary interests therein. The address of the Master Fund is c/o Armistice Capital, LLC, 510 Madison Avenue, 7th Floor, New York, NY 10022.

(4) The shares being registered include the following: (i) 44,227 Common Shares and (ii) 66,287 Common Shares underlying Prefunded Warrants. Maier J. Tarlow has voting and dispositive control with respect to the securities being offered.

(5) The shares being registered include the following: (i) 379,101 Common Shares underlying Prefunded Warrants and (ii) 568,181 Common Shares underlying Warrants. The total shares owned before the sale excludes 842,623 common shares underlying common stock purchase warrants consisting of (i) 274,442 of the Prefunded Warrants that would be in excess of the 4.99% beneficial ownership limitation, and (ii) the 568,181 Warrants. Altium Capital Management, LP, the investment manager of Altium Growth Fund, LP, has voting and investment power over these securities. Jacob Gottlieb is the managing member of Altium Capital Growth GP, LLC, which is the general partner of Altium Growth Fund, LP. Each of the Altium Growth Fund, LP and Jacob Gottlieb disclaims beneficial ownership over these securities. The principal address of Altium Capital Management, LP is 152 West 57^th Street, 20th Floor, New York, NY 10019.

(6) The shares being registered include the following: (i) 116,764 Common Shares and (ii) 175,000 Common Shares underlying Warrants. The total shares owned before the sale excludes 170,718 of the Warrants that would be in excess of the 4.99% beneficial ownership limitation. Joshua Scheinfeld and Jonathan Cope, the principals of Lincoln Park are fileddeemed to be beneficial owners of all of the Common Shares owned by Lincoln Park. Messrs. Scheinfeld and Cope have shared voting and disposition power.

(7) The shares being registered include the following: (i) 66,723 Common Shares, (ii) 100,000 Common Shares underlying Warrants. Daniel Warsh has voting and dispositive control with respect to the securities being offered.

(8) The shares being registered include the following: (i) 75,694 Common Shares and (ii) 113,446 Common Shares underlying Warrants. Mitchell P. Kopin (“Mr. Kopin”) and Daniel B. Asher (“Mr. Asher”), each of whom are managers of Intracoastal Capital LLC (“Intracoastal”), have shared voting control and investment discretion over the securities reported herein that are held by Intracoastal. As a result, each of Mr. Kopin and Mr. Asher may be deemed to have beneficial ownership (as determined under Section 13(d) of the Securities Exchange Act of 193, as amended) of the securities reported herein that are held by Intracoastal.

(9) The shares being registered include the following: (i) 22,999 Common Shares and Exchange Commission(ii) 34,470 Common Shares underlying Warrants. Boothbay Diversified Alpha Master Fund, LP, a Cayman Islands limited partnership (the “Fund”), is managed by Boothbay Fund Management, LLC, a Delaware limited liability company (the “Adviser”). The Adviser, in its capacity as exhibitsthe investment manager of the Fund, has the power to vote and the power to direct the disposition of all securities held by the Fund. Ari Glass is the Managing Member of the Adviser. Each of the Fund, the Adviser, and Mr. Glass disclaim beneficial ownership of these securities, except to the extent of any pecuniary interest therein.

(10) The shares being registered include the following: (i) 45,125 Common Shares and (ii) 67,632 Common Shares underlying Warrants. Boothbay Absolute Return Strategies, LP, a Delaware limited partnership (the “Fund”), is managed by Boothbay Fund Management, LLC, a Delaware limited liability company (the “Adviser”). The Adviser, in its capacity as the investment manager of the Fund, has the power to vote and the power to direct the disposition of all securities held by the Fund. Ari Glass is the Managing Member of the Adviser. Each of the Fund, the Adviser, and Mr. Glass disclaim beneficial ownership of these securities, except to the extent of any pecuniary interest therein.

(11) The shares being registered include the following: (i) 7,570 Common Shares and (ii) 11,344 Common Shares underlying Warrants. Kingsbrook Partners LP (“Kingsbrook Partners”) is the investment manager of Kingsbrook Opportunities Master Fund LP (“Kingsbrook Opportunities”) and consequently has voting control and investment discretion over securities held by Kingsbrook Opportunities. Kingsbrook Opportunities GP LLC (“Opportunities GP”) is the general partner of Kingsbrook Opportunities and may be considered the beneficial owner of any securities deemed to be beneficially owned by Kingsbrook Opportunities. KB GP LLC (“GP LLC”) is the general partner of Kingsbrook Partners and may be considered the beneficial owner of any securities deemed to be beneficially owned by Kingsbrook Partners. Ari J. Storch, Adam J. Chill and Scott M. Wallace are the sole managing members of Opportunities GP and GP LLC and as a result may be considered beneficial owners of any securities deemed beneficially owned by Opportunities GP and GP LLC. Each of Kingsbrook Partners, Opportunities GP, GP LLC and Messrs. Stoch, Chill and Wallace disclaim beneficial ownership of these securities.

(12) The shares being registered include 136,363 Common Shares underlying the Placement Agent Warrants. David Rosenberg has voting and dispositive control with respect to the securities being offered. Notwithstanding percentage ownership of Ladenburg, each outstanding convertible security post sale has a blocker of 4.99% ownership.

Relationship with Selling stockholders

Pursuant to the Private Offering, we agreed to file the registration statement of which this prospectus forms a part.

We are authorized to issue 300,000,000 shares of common stock, par value $0.01 per share, and 7,000,000 shares of preferred stock, par value $0.01 per share. As of March 31, 2019, we had:

Common Stock

Holders of common stock are entitled to one vote for each share held of record on all matters submitted to a vote of the stockholders, subject to the holder of our Series A 4.5% Convertible Preferred Stock having the ability to appoint one director, and do not have cumulative voting rights. Subject to preferences that may be applicable to any outstanding shares of preferred stock, holders of common stock are entitled to receive ratably such dividends, if any, as may be declared from time to time by our board of directors out of funds legally available for dividend payments. All shares of common stock outstanding as of the date of this prospectus are fully paid and nonassessable. The holders of common stock have no preferences or rights of conversion, exchange, pre-emption or other subscription rights. There are no redemption or sinking fund provisions applicable to the common stock. In the event of any liquidation, dissolution or winding-up of our affairs, holders of common stock will be entitled to share ratably in our assets that are remaining after payment or provision for payment of all of our debts and obligations and after liquidation payments to holders of outstanding shares of preferred stock, if any.

Preferred Stock

Our board of directors has the authority, without action by our stockholders, to designate and issue up to an additional 6,000,000 shares of preferred stock in one or more series and to designate the rights, preferences, and limitations of all such series, any or all of which may be superior to the rights of our common stock. It is not possible to state the actual effect of the issuance of any shares of preferred stock upon the rights of the holders of common stock until our board of directors determines the specific rights of the holders of preferred stock. However, effects of the issuance of preferred stock include restricting dividends on our common stock, diluting the voting power of our common stock, impairing the liquidation rights of our common stock, and making it more difficult for a third party to acquire us, which could have the effect of discouraging a third party from acquiring, or deterring a third party from paying a premium to acquire, a majority of our outstanding voting stock. We have no present plans to issue any additional shares of our preferred stock.

Series A 4.5% Convertible Preferred Stock

As of June 15, 2019 have outstanding 534,809 shares of Series A 4.5% Convertible Preferred Stock with a stated value of $12.7895 per share and which are immediately convertible into an aggregate of 2,079,010 shares of common stock. The Series A Preferred Stock has no provisions regarding subsequent securities issuances or so called “price protection provisions.” The holders of Series A Preferred Stock shall be entitled receive 4.5% dividends in cash or additional shares of Series A Preferred Stock if and when declared by the Company’s board of directors in preference to the payment of any dividends on the Common Stock. The holders of Series A Preferred Stock shall have no voting rights but shall be entitled to appoint one (1) member to our board of directors. This right to appoint a member of the board of directors will terminate when there are less than 200,000 shares of Series A Preferred Stock outstanding.

Preferred Stock in General

Our board of directors may, without further action by our stockholders, from time to time, direct the issuance of shares of preferred stock in series and may, at the time of issuance, determine the rights, preferences and limitations of each series, including voting rights, dividend rights and redemption and liquidation preferences. Satisfaction of any dividend preferences of outstanding shares of preferred stock would reduce the amount of funds available for the payment of dividends on shares of our common stock. Holders of shares of preferred stock may be entitled to receive a preference payment in the event of any liquidation, dissolution or winding-up of our company before any payment is made to the holders of shares of our common stock. In some circumstances, the issuance of shares of preferred stock may render more difficult or tend to discourage a merger, tender offer or proxy contest, the assumption of control by a holder of a large block of our securities or the removal of incumbent management. Upon the affirmative vote of our board of directors, without stockholder approval, we may issue shares of preferred stock with voting and conversion rights which could adversely affect the holders of shares of our common stock.

As of June 15, 2019, there were warrants to purchase 7,203,494 shares of our common stock outstanding at a weighted-average exercise price of $2.56 per share and expiration dates between July 2019 and August 2024. This amount is comprised of the following warrants:

Transfer Agent and Registrar

The transfer agent and registrar for our common stock is American Stock Transfer & Trust Company. We act as the transfer agent and registrar for out Series A 4.5% Convertible Preferred Stock.

Anti-Takeover Effects of Some Provisions of Delaware Law

Provisions of Delaware law could make the acquisition of our company through a tender offer, a proxy contest or other means more difficult and could make the removal of incumbent officers and directors more difficult. We expect these provisions to discourage coercive takeover practices and inadequate takeover bids and to encourage persons seeking to acquire control of our company to first negotiate with our board of directors. We believe that the benefits provided by our ability to negotiate with the proponent of an unfriendly or unsolicited proposal outweigh the disadvantages of discouraging these proposals. We believe the negotiation of an unfriendly or unsolicited proposal could result in an improvement of its terms.

We are subject to Section 203 of the Delaware General Corporation Law, an anti-takeover law. In general, Section 203 prohibits a publicly held Delaware corporation from engaging in a “business combination” with an “interested stockholder” for a period of three years following the date the person became an interested stockholder, unless:

Generally, a “business combination” includes a merger, asset or stock sale, or other transaction resulting in a financial benefit to the interested stockholder. An “interested stockholder” is a person who, together with affiliates and associates, owns or, within three years priorpart to register the determinationresale of interested stockholder status, did own 15% or more of a corporation’s outstanding voting securities. We expect the existence of this provision to have an anti-takeover effect with respect to transactions our board of directors does not approve in advance. We also anticipate that Section 203 may also discourage attempts that might result in a premium over the market price for the shares of common stock held by stockholders.

Anti-Takeover EffectsCommon Stock sold in the Private Offering and shares of Provisions of Our Charter Documents

Our amendedCommon Stock underlying the Prefunded Warrants and restated bylaws provides for our board of directorsWarrants and to be divided into three classes serving staggered terms. Approximately one-third ofuse best efforts to keep such registration statement effective at all times until such date that the board of directors will be elected each year. The provision for a classified board could prevent a party who acquires control of a majority of the outstanding voting stock from obtaining control of the board of directors until the second annual stockholders meetingapplicable Warrant Shares either (i) have been sold, or longer, following the date the acquirer obtains the controlling stock interest. The classified board provision could discourage a potential acquirer from making a tender offer or otherwise attempting to obtain control of our company and could increase the likelihood that incumbent directors will retain their positions. Our amended and restated bylaws provides any director or the entire Board(ii) may be removed from office at any time, withsold without volume or without cause, by the affirmative vote of the holders of at least a majority of the voting power of the issued and outstanding shares of capital stock of the corporation then entitled to vote in the election of directors.

Our amended and restated bylaws establish an advance notice procedure for stockholder proposals to be brought before an annual meeting of our stockholders, including proposed nominations of persons for election to the board of directors. At an annual meeting, stockholders may only consider proposals or nominations specified in the notice of meeting or brought before the meeting by or at the direction of the board of directors. Stockholders may also consider a proposal or nomination by a person who was a stockholder of record on the record date for the meeting, who is entitled to vote at the meeting and who has given to our Secretary timely written notice, in proper form, of his or her intention to bring that business before the meeting. The amended and restated bylaws do not give the board of directors the power to approve or disapprove stockholder nominations of candidates or proposals regarding other business to be conducted at a special or annual meeting of the stockholders. However, our bylaws may have the effect of precluding the conduct of business at a meeting if the proper procedures are not followed. These provisions may also discourage or deter a potential acquirer from conducting a solicitation of proxies to elect the acquirer’s own slate of directors or otherwise attempting to obtain control of our company.

Our amended and restated bylaws provide that only our board of directors, the chairperson of the board or the chief executive officer (or president, in the absence of a chief executive officer) or holders of more than twenty percent (20%) of the total voting power of the outstanding shares of capital stock may call a special meeting of stockholders. The restriction on the ability of stockholders to call a special meeting means that a proposal to replace the board also could be delayed until the next annual meeting.

Limitations on Liability and Indemnification of Officers and Directors

Our amended restated certificate of incorporation limits the liability of our officers and directors to the fullest extent permitted by the Delaware General Corporation Law, and our restated certificate of incorporation and restated bylaws provide for indemnification of our officers and directors to the fullest extent permitted by such law.

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL

CONDITION AND RESULTS OF OPERATIONS

The following Management’s Discussion and Analysis of Financial Condition and Results of Operations contains forward-looking statements and include statements about products in development, results and analyses of pre-clinical studies, clinical trials and studies, research and development expenses, cash expenditures, and alliances and partnerships, among other matters. You can identify these forward-looking statements because they involve our expectations, intentions, beliefs, plans, projections, anticipations, or other characterizations of future events or circumstances. These forward-looking statements are not guarantees of future performance and are subject to risks and uncertainties that may cause actual results to differ materially from those in the forward-looking statements as a result of any number of factors. These factors include, but are not limited to, risks relating to our: ability to conduct and obtain successful results from ongoing pre-clinical and clinical trials, commercialize our technology, obtain regulatory approval for our product candidates, contract with third parties to adequately test and manufacture our proposed therapeutic products, protect our intellectual property rights and obtain additional financing to continue our operations. Some of these factors are more fully discussed in the section entitled “Risk Factors” as well as elsewhere herein. We do not undertake to update any of these forward-looking statements or to announce the results of any revisions to these forward-looking statements except as required by law.

Our Management’s Discussion and Analysis of Financial Condition and Results of Operations or MD&A is provided, in addition to the accompanying financial statements and notes, to assist you in understanding our results of operations, financial condition and cash flows. Our MD&A is organized as follows:

Executive Overview

We are focused on the research and development of therapies for the treatment of central nervous system diseases, which are based on our proprietary human neural stem cells and our small molecule compounds with the goal of gaining approval from the United States Food and Drug Administration or FDA, and its international counterparts, to market and commercialize such therapies. We are headquartered in Germantown, Maryland.

Our patented technology platform has three core components:

Our technology platform to date has produced four lead assets, two in clinical development and two in preclinical development: our NSI-566 stem cell therapy program (clinical stage), NSI-189 small molecule program (clinical stage) and NSI-532 and NSI-577, both of which are second-generation stem cell therapy programs (preclinical stage).

We have developed a portfolio of patents and patent applications that form the proprietary base for our research and development efforts. We own or exclusively license approximately 15 U.S. issued and pending patents and approximately 70 foreign issued and pending patents related to our stem cell technologies for use in treating disease and injury. We own approximately 15 U.S. issued and pending patents and approximately 75 foreign issued and pending patents related to our small molecule compounds.

We believe our technology, in combination with our expertise, and established collaborations with major research institutions, could facilitate the development and commercialization of products for use in the treatment of a several nervous system disorders including neurodegenerative conditions and regenerative repair of acute and chronic disease.

Trends & Outlook

Revenue

We generated no revenues from the sale of our proposed therapies for any of the periods presented.

We have historically generated minimal revenue from the licensing of our intellectual property to third parties as well as payments under a settlement agreement.

On a long-term basis, we anticipate that our revenue will be derived primarily from licensing/royalty fees and the sales of our products currently under development, acquired and/or in-licensed in the future, small molecule compounds and licensing fees and royalties from our cell-based therapies. Based on the development stage of our business, we are not yet able to accurately predict when we will have a product ready for commercialization, if ever.

Research and Development Expenses

Our research and development expenses consist primarily of clinical trial expenses, including; payments to clinical trial sites that perform our clinical trials and clinical research organizations (CROs) that help us manage our clinical trials, manufacturing of small molecule drugs and stem cells for both human clinical trials and for pre-clinical studies and research, personnel costs for research and clinical personnel, and other costs including research supplies and facilities.

We focus on the development of therapies with potential uses in multiple indications and use employee and infrastructure resources across several projects. Accordingly, many of our costs are not attributable to a specifically identified product and we do not account for internal research and development costs on a project-by-project basis.

We expect that research and development expenses, which include expenses related to our ongoing clinical trials, will increase in the future as funding allows and as we proceed into later stage clinical trials or commence development of new product candidates.

We have a wholly owned subsidiary in the People’s Republic of China. We anticipate that this subsidiary will primarily: (i) conduct pre-clinical research with regard to proposed stem cells therapies, and (ii) oversee our approved future clinical trials in China, including the current trial to treat motor deficits due to ischemic stroke.

In August 2017, we were awarded a Small Business Innovation Research (“SBIR”) grant by the National Institutes of Health (“NIH”) to evaluate in preclinical studies the potential of NSI-189, a novel small molecule compound, for the prevention and treatment of diabetic neuropathy. The award of approximately $1 million will be paid over a two-year period, if certain conditions are met as mid-term. In June 2018, we were awarded a Department of Defense grant related to our efforts involving stem cell therapy for severe traumatic brain injury. The award totals approximately $150,000. The proceeds from such awards are recorded as a reduction of our gross research and development expenses, based on the terms and conditions of the grant.

General and Administrative Expenses

General and administrative expenses are primarily comprised of salaries, benefits and other costs associated with our operations including, finance, human resources, information technology, public relations and costs associated with maintaining a public company listing, legal, audit and compliance fees, facilities and other external general and administrative services.

Going Concern

Our auditors’ report on our December 31, 2018 audited consolidated financial statements expressed an opinion that our capital resources as of the date of their audit report were not sufficient to sustain operations or complete our planned activities for the upcoming year unless we raised additional funds. Accordingly, our current cash level raises substantial doubt about our ability to continue as a going concern past the third quarter of 2019. If we do not obtain additional funds by such time, we may no longer be able to continue as a going concern and will cease operation which means that our shareholders will lose their entire investment.

Critical Accounting Policies

Our unaudited condensed consolidated financial statements have been prepared in accordance with U.S. GAAP. The preparation of these financial statements requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses. Note 2 of the Notes to Unaudited Condensed Consolidated Financial Statements included elsewhere herein describes the significant accounting policies used in the preparation of the financial statements. Certain of these significant accounting policies are considered to be critical accounting policies, as defined below.

A critical accounting policy is defined as one that is both material to the presentation of our financial statements and requires management to make difficult, subjective or complex judgments that could have a material effect on our financial condition and results of operations. Specifically, critical accounting estimates have the following attributes: (1) we are required to make assumptions about matters that are highly uncertain at the time of the estimate; and (2) different estimates we could reasonably have used, or changes in the estimate that are reasonably likely to occur, would have a material effect on our financial condition or results of operations.

Estimates and assumptions about future events and their effects cannot be determined with certainty. We base our estimates on historical experience and on various other assumptions believed to be applicable and reasonable under the circumstances. These estimates may change as new events occur, as additional information is obtained and as our operating environment changes. These changes have historically been minor and have been included in the financial statements as soon as they became known. Based on a critical assessment of our accounting policies and the underlying judgments and uncertainties affecting the application of those policies, management believes that our financial statements are fairly stated in accordance with U.S. GAAP and present a meaningful presentation of our financial condition and results of operations. We believe the following critical accounting policies reflect our more significant estimates and assumptions used in the preparation of our consolidated financial statements:

Use of Estimates - The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The unaudited condensed consolidated financial statements include significant estimates for the expected economic life and value of our licensed technology and related patents, our net operating loss and related valuation allowance for tax purposes, the fair value of our liability classified warrants and our share-based compensation related to employees and directors, consultants and advisors, among other things. Because of the use of estimates inherent in the financial reporting process, actual results could differ significantly from those estimates.

Long Lived Intangible Assets -Our long-lived intangible assets consist of our intellectual property patents including primarily legal fees associated with the filings and in defense of our patents. The assets are amortized on a straight-line basis over the expected useful life which we define as ending on the expiration of the patent group. These assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. We assess this recoverability by comparing the carrying amount of the asset to the estimated undiscounted future cash flows to be generated by the asset. If an asset is deemed to be impaired, we estimate the impairment loss by determining the excess of the asset’s carrying amount over the estimated fair value. These determinations use assumptions that are highly subjective and include a high degree of uncertainty. During the three- month periods ended March 31, 2019 and 2018, no significant impairment losses were recognized.

Fair Value Measurements - The fair value of our short-term financial instruments, which primarily include cash and cash equivalents, other short-term investments, accounts payable and accrued expenses, approximate their carrying values due to their short maturities. The fair value of our long-term indebtedness was estimated based on the quoted prices for the same or similar issues or on the current rates offered to the Company for debt of the same remaining maturities which approximates the carrying value. The fair values of our liability classified warrants are estimated using Level 3 unobservable inputs.

Share-Based Compensation - We account for share-based compensation at fair value; accordingly, we expense the estimated fair value of share-based awards over the requisite service period. Share-based compensation cost for stock options and warrants issued to employees and board members is determined at the grant date while awards granted to non-employee consultants are generally valued at the vesting date using an option pricing model. Option pricing models require us to make assumptions, including expected volatility and expected term of the options. If any of the assumptions we use in the model were to significantly change, share-based compensation expense may be materially different. Share-based compensation cost for restricted stock and restricted stock units issued to employees and board members is determined at the grant date based on the closing price of our common stock on that date. The value of the award that is ultimately expected to vest is recognized as expense on a straight-line basis over the requisite service period.

Results of Operations

Comparison of Three Months Ended March 31, 2019 and 2018

Revenue

During each of the three months ended March 31, 2019 and 2018 we recognized revenue of $2,500 related to ongoing feesmanner-of-sale restrictions pursuant to certain licenses of our intellectual property to third parties.

Operating Expenses

Operating expensesRule 144 and without the requirement for the three months ended March 31 were as follows:

Research and Development Expenses

The increase of approximately $345,000 or 30% in research and development expenses for the three months ended March 31, 2019 compared to the comparable period of 2018 was primarily attributable to $223,000 of severance related expenses, a $166,000 increase in our R&D consulting relating to evaluating strategic alternatives and a $136,000 increase in non-cash share-based compensation expense partially offset by a $186,000 decrease in clinical trial and related costs due our continued cost cutting efforts.

General and Administrative Expenses

The decrease of approximately $237,000 or 20% in general and administrative expenses for the three months ended March 31, 2019 compared to the comparable period of 2018 was primarily attributable to a $94,000 decrease in consulting and professional fees, a $70,000 decrease increase in tax and insurance expenses along with a $36,000 decrease in non-cash share-based compensation expense.

Other (expense) income

Other income (expense), net totaled approximately ($657,000) and $202,000 for the three months ended March 31, 2019 and 2018, respectively.

Other expense, net in 2019 consisted primarily of approximately a $368,000 loss related to the write-off of a related party receivable, $340,000 of non-cash losses related to the fair value adjustment of our liability classified stock purchase warrants partially offset by $29,000 of interest income and $24,000 of sublease income.

Other income, net in 2018 consisted primarily of approximately $190,000 of non-cash gains related to the fair value adjustment of our liability classified stock purchase warrants and $18,000 of interest income.

Comparison of Our Results of Operations for the Years Ended December 31, 2018 and 2017

Revenue

During each of the years ended December 31, 2018 and 2017,we recognized $250,000 of milestone-based royalties related to a settlement of a prior patent infringement case. In addition, during each of theyears ended December 31, 2018 and 2017, we recognized revenue of $10,000related to ongoing fees pursuant to certain licenses of our intellectual property to third parties.

Operating Expenses

Operating expenses for 2018 and 2017 were as follows:

Research and Development Expenses

The decrease of approximately $4,136,000 or 51% in research and development expenses was primarily attributable to (i) a $1,580,000 decrease in costs related to our completed NS-189 Phase 2 clinical trial, (ii) a $982,000 decrease in our personnel, facility and other expenses due to our ongoing corporate restructuring and cost reduction efforts (iii) a $958,000 decrease in non-cash share-based compensation expense and (iv) a $497,000 increase in reimbursements under our research grants.

General and Administrative Expenses

The decrease of approximately $912,000 or 17% in general and administrative expenses was primarily attributable to (i) a $1,064,000decrease in personnel, facility and related expenses due to our ongoing corporate restructuring and cost reduction efforts and (ii) a $178,000 decrease in our non-cash share-based compensation expense partially offset by (iii) a $247,000 increase in tax and insurance expenses and (iv) a $84,000 increase in outsourced consulting and professional services expenses.

Other income (expense)

Other income (expense), net totaled approximately $3,335,000 and ($2,359,000) for the years ended December 31, 2018 and 2017, respectively.Other income, net in 2018 consisted of approximately $3,269,000 of non-cash gains related to the change in the fair value of our liability classified stock purchase warrants and $79,000 of interest income.

Other expense, net in 2017 consisted of approximately $1,470,000 of non-cash losses related to the change in the fair value of our liability classified stock purchase warrants, $564,000 of expense related to the issuance of inducement warrants, $243,000 of expense related to the liability classified warrants issued in conjunction with our August 2017 capital raise and $159,000 of interest expense related primarily to our long-term debt, partially offset by $70,000 of interest income.

Liquidity and Capital Resources

Financial Condition

Since our inception, we have financed our operations through the sales of our securities, issuance of long-term debt, the exercise of investor warrants, and to a lesser degree from grants and research contracts as well as the licensing of our intellectual property to third parties.

We had cash and cash equivalents of approximately $4.0 million at March 31, 2019.On October 29, 2018, we closed a registered direct offering with institutional investors pursuant to which we received gross proceeds of $2.1 million.

Based on our expected operating cash requirements, we anticipate our current cash and investments on hand will be sufficient to fund our operations, into the third quarter of 2019. As explained in Note 1 to our financial statements and management has determined that there is substantial doubt about our ability to continue as a going concern.

We will require additional capital to pursue our acquisition and in-licensing strategy and continue our pre-clinical and clinical development plans. To continue to fund our operations and the development of our product candidates we anticipate raising additional cash through the private and public sales of equity or debt securities, collaborative arrangements, licensing agreements or a combination thereof. Although management believes that such funding sources will be available, there can be no assurance that any such collaborative arrangement will be entered into or that financing will be available to us when needed in order to allow us to continue our operations, or if available, on terms acceptable to us. If we do not raise sufficient funds in a timely manner, we may be forced to curtail operations, delay or stop our ongoing clinical trials, cease operations altogether, or file for bankruptcy. We currently do not have commitments for future funding from any source. We cannot assure you that we will be able to secure additional capital or that the expected income will materialize. Several factors will affect our ability to raise additional funding, including, but not limited to market conditions, interest rates and, more specifically, our progress in our exploratory, preclinical and future clinical development programs.

Cash Flows – 2019 compared to 2018

Net Cash Used in Operating Activities

The decrease in our use of cash in operating activities of approximately $181,000 was primarily due to an increase in our net loss adjusted for certain non-cash items, including share-based compensation, write-off of a related party receivable and change in the fair value of liability classified warrants along with a decrease in bonus payments.

Cash used in operating activities for the three months ended March 31, 2019, of approximately $1,666,000 reflects our $3,114,000 loss for the period adjusted for certain non-cash items including: (i) 338,000 of share-based compensation (ii) $340,000 related to the change in fair value of our liability classified warrants and (iii) $730,000 of net cash inflows related to changes in operating assets and liabilities.

Net Cash (Used in) Provided by Investing Activities

There were no investing activities in the three months ended March 31, 2019

For the three months ended March 31, 2018 cash provided by investing activities was comprised solely of proceeds from the maturity of our short-term investments.

Net Cash Used in by Financing Activities

For the three months ended March 31, 2019 and 2018, cash used in financing activities consisted solely of payments on our short-term debt.

Future Liquidity and Needs

We have incurred significant operating losses and negative cash flows since inception. We have not been able to generate significant revenues nor achieved profitability and may not be able to do so in the future. We do not expect to be profitable in the next several years, but rather expect to incur additional operating losses. We have limited liquidity and capital resources and must obtain significant additional capital resources in order to sustain our product development efforts, for acquisition of technologies and intellectual property rights, for preclinical and clinical testing of our anticipated products, pursuit of regulatory approvals, acquisition of capital equipment, laboratory and office facilities, establishment of production capabilities, for general and administrative expenses and other working capital requirements. We rely on cash balances and the proceeds from the offering of our securities, exercise of outstanding warrants and grants to fund our operations.

We intend to pursue opportunities to obtain additional financing in the future through the sale of our securities and additional research grants. On June 23, 2017, our shelf registration statement (Registration No. 333-218608), which replaced our prior expiring shelf registration statement, was declared effective by the SEC. Under such replacement shelf registration statement, we can offer and sell up to $100 million of our securities. Through April 30, 2019 we have sold approximately $12.6 million of securities under our shelf registration statement. Based on our current market capitalization, we are limited to the use of our shelf registration statement by Item I.B.6 of Form S-3. Accordingly, we can only issue up to one-third of our market capitalization every twelve months. As a result of our October 2018 offering, we have exhausted our ability to use our shelf registration statement until October of 2019 or until such time as our market capitalization increases.

As explained in the notes to our financial statements, if we are not able to raise additional funds when needed, there would continue to be substantial doubt as to our ability to continue as a going concern. The source, timing and availability of any future financing will depend principally upon market conditions, interest rates and, more specifically, current and future progress in our exploratory, preclinical and clinical development programs. Funding may not be available when needed, at all, or on terms acceptable to us. Lack of necessary funds may require us, among other things, to delay, scale back or eliminate some or all of our research and product development programs, planned clinical trials, and/or our capital expenditures or to license our potential products or technologies to third parties.

OUR BUSINESS

We are primarily focused on the research and development of nervous system therapies based on our proprietary human neural stem cells and our small molecule compounds with the ultimate goal of gaining approval from the United States Food and Drug Administration (“FDA”), and its international counterparts, to market and commercialize such therapies. Recently, we have also began an in-licensing and acquisition strategy in which we are evaluating novel therapeutics with the potential to be complimentary to our current technologies or that could benefit from our development experience with the goal of developing such technologies for commercialization.

Our patented technology platform has three core components:

To date. our technology platform has produced two lead assets in clinical development: our NSI-566 stem cell therapy program and our NSI-189 small molecule program.

We believe our technology, in combination with our expertise, and established collaborations with major research institutions, could facilitate the development and commercialization of products for use in the treatment of a wide array of nervous system disorders including neurodegenerative conditions and regenerative repair of acute and chronic disease.

In-licensing or Acquisition Strategy

We have initiated an in-licensing or acquisition strategy to further expand our product pipeline. Our in-licensing strategy consists of evaluating early clinical or late preclinical stage opportunities in therapeutic areas that can benefit from our current product candidates or core expertise in drug development. Such in-licensing or acquisition opportunities may be in stem cell related technologies, CNS or in other therapeutic areas. We believe that this element of our corporate strategy could diversify the risks inherent in focusing on limited therapeutic areas and could increase our probability of commercial success.

Clinical Programs

We have devoted our efforts and financial resources primarily to the pre-clinical and clinical development of our small molecule compounds and our stem cell therapeutics. Below is a description of our most advanced clinical programs.

Based on our current cash position, we have greatly curtailed our development efforts with regard to our pre-clinical and clinical studies except with respect to our exploratory phase 2 study of NSI-566 for the treatment of Ischemic Stroke (the results of which will not be able to be used in connection with any regulatory filing in any territory) and studies that are being funded by grants. Additionally, we have increased our focus and efforts on our in-licensing and acquisition strategy that we announced earlier this year. In the event we are able to secure adequate additional financing, we will review existing programs with regard to re-initiating active development.

NSI - 566 (Stem Cells)

The human central nervous system (CNS) has limited capacity for regeneration following injury or the onset of disease. Traditional therapies have mainly focused on minimizing the progression or symptoms of CNS disease or injury but have not been effective at repairing the underlying cause of such disease. The goal of our cell therapy initiatives is the regeneration of neural function which has been lost to disease or injury. We believe that neuroprotection, neuroregeneration, and/or bridging of damaged neural circuitry may be accomplished by implantation of NSI-566 at the injury site.

Our proprietary technology enables the isolation and large-scale expansion of regionally specific neural stem cells from all areas of the developing human brain and spinal cord and enables the generation of commercially useful quantities of highly characterized allogeneic human neural stem cells that can be transplanted into patients to mitigate the consequences of CNS diseases or injury. We have developed and optimized processes that allow us to manufacture these cells under Good Manufacturing Practices or cGMP compliant conditions as required by the FDA for use in clinical trials and have generated cell banks which we believe are sufficient to provide material to meet all our requirements through to completion of Phase 3 studies. We have exclusive licenses for the manufacturing and use of the surgical platform and cannula that enable administration of the cells to the spinal cord for treatment. Based on our preclinical data we believe that our human neural stem cells will differentiate into neurons and glia after grafting into the patient and will provide neuroprotection and stimulate neuroregeneration.

Our lead stem cell program is the spinal cord-derived neural stem cell line, NSI-566, which is being tested for treatment of paralysis due to Amyotrophic Lateral Sclerosis (ALS, or Lou Gehrig’s disease), stroke, and spinal cord injury (“SCI”). To date we have completed Phase 1 and Phase 2 safety and dose escalation studies in subjects with ALS and a Phase1 safety and dose escalation study in subjects with motor deficits due to ischemic stroke. Each of these studies are currently in their long-term follow-up stage. In August 2018, we initiated an exploratory randomized, double-blind, sham-surgery controlled Phase 2 trial for the treatment of ischemic stroke (the results of which will not be able to be used in connection with any regulatory filing in any territory). We are also conducting a Phase 1 open label study to evaluate the safety of implanting NSI-566 in subjects with chronic SCI.

Amyotrophic Lateral Sclerosis

Amyotrophic lateral sclerosis is a disease of the nerve cells in the brain and spinal cord that control voluntary muscle movement. In 2016 the Centers for Disease Control and Prevention estimated that between 14,000 and 15,000 Americans have ALS. In ALS, nerve cells (motor neurons) waste away or die and can no longer send messages to muscles. This eventually leads to muscle weakening, twitching, and an inability to move the arms, legs, and body. As the condition progresses, muscles in the chest area stop working, making it difficult or impossible to breathe. NSI-566 is under development as a potential treatment for ALS by providing cells designed to nurture and protect the patient’s remaining motor neurons; and possibly repair some motor neurons which have not yet died but which are diseased. We received orphan designation by the FDA for NSI-566 in ALS.

Motor Deficits Due to Ischemic Stroke

Ischemic stroke, the most common type of stroke, occurs as a result of an obstruction within a vessel supplying blood to the brain. In the US, approximately 1.8 million people live with paralysis due to stroke. Post-stroke motor deficits include paralysis in arms and legs and speech impairment and can be permanent. We believe that NSI-566 may provide an effective treatment for restoring motor deficits resulting from ischemic stroke by both creating new circuitry in the area of injury and through repairing and or nurturing diseased cells to improve function in patients.

Chronic Spinal Cord Injury

Spinal cord injury, or SCI, generally refers to any injury to the spinal cord that is caused by trauma instead of disease, although in some cases it can be the result of diseases. It is estimated that there are 17,000 new cases of SCI per year and that at any given time, there are estimated to be 288,000 people in the United States that are living with SCI. Chronic spinal cord injury (cSCI) refers to the time after the initial hospitalization. SCIs may be caused by trauma to the spinal cord resulting from motor vehicle accidents, falls, and penetrating injuries such as stab or gunshot wounds. We believe that NSI-566 may provide an effective treatment for cSCI by “bridging the gap” in the spinal cord circuitry created following traumatic spinal cord injury and providing new cells to help transmit the signal from the brain to points at or below the point of injury.

Clinical Experience with NSI-566

Ischemic Stroke

In 2013 we commenced an open label, exploratory Phase I safety and dose escalation study to test transplantation of NSI-566 in human subjects for the treatment of motor deficits due to ischemic stroke (the results of which will not be able to be used in connection with any regulatory filing in any territory). The trial was conducted at BaYi Brain Hospital in Beijing, China and sponsored by Suzhou Neuralstem, a wholly owned subsidiary of Neuralstem in China. This study was intended to evaluate the safety of direct injections of NSI-566 into the brain and to determine the maximum safe tolerated dose. We completed dosing the final cohort in March 2016, for a total of nine subjects. Subjects were monitored through a 24-month observational follow-up period. Delivery of NSI-566 cells in this population appeared to be safe and well tolerated at all doses.

In June 2018, we presented an abstract at the annual International Society of Stem Cell Research (ISSCR). In the study, 3 cohorts (n=3/cohort) were transplanted with ascending doses of NSI-566, which involved a one-time stereotactic, intracerebral injection of 1.2×10⁷, 2.4×10⁷, or 7.2×10⁷ cells. Immunosuppression therapy with tacrolimus was maintained for 28 days At the 12-Month Visit, compared to Baseline, the mean Fugl-Meyer Motor Score (FMMS, total score of 100) showed 15.6 points of improvement (p=0.0078), the mean Modified Ranking Score (MRS) 0.8 points of improvement (p=0.031), and the mean NIH Stroke Scale (NIHSS) 3.2 points of improvement (p=0.016). The stem cell treatment appears well tolerated at all doses. There were no deaths or serious adverse events related to the treatment.

In August 2018, we initiated a an exploratory Phase 2 trial which is a randomized, double-blind, sham-surgery controlled study (the results of which will not be able to be used in connection with any regulatory filing in any territory). Up to 24 eligible patients will be assigned either to receive NSI-566 stem cells (72 million cells) or sham-surgery at 1:1 ratio. All operations are being conducted at BaYi Brain Hospital, the site of the Phase 1 study, and all follow-up assessments are conducted by blinded, independent neurologists at Beijing Rehabilitation Hospital. To date, 16 subjects have been treated.

Amyotrophic Lateral Sclerosis

In January 2010, we commenced a Phase 1 trial of NSI-566 in ALS at Emory University in Atlanta, Georgia. The purpose of the trial was to evaluate the safety of our proposed treatment and procedure in a total of 15 subjects. The dosing of subjects in the Phase 1 trial, as designed, was completed in August of 2012. We commenced a Phase 2 clinical trial in subjects suffering from ALS in September of 2013 to further test the feasibility and safety of the treatment and procedure, and maximum tolerated dose of cells. The Phase 2 dose escalation trial enrolled 15 ambulatory subjects in five different dosing cohorts. Each patient in the final cohort had two separate surgeries.

We have completed all of the transplantations and the observation period of 24 months after the last surgery. The Phase 2 ALS clinical trial met the primary safety endpoints and established what we believe to be the maximum safe tolerated dose. In June 2017, 24-month Phase 2 and combined Phase 1 and Phase 2 data from our ALS trials were presented at the International Society for Stem Cell Research (ISSCR) Annual Meeting, Approaches to Treating ALS, Boston, Massachusetts, by principal investigator Eva Feldman, MD, PhD, Russell N. DeJong Professor of Neurology and Director of Research of the ALS Clinic at the University of Michigan Health. The data showed that the intraspinal transplantation of the cells was safe and well tolerated. Subjects from both the Phase 1 and Phase 2 continue to be monitored for long-term follow-up evaluations.

To date, substantially all of the clinical costs of our ALS studies have been funded by grants.

Chronic Spinal Cord Injury

In 2013, we received authorization from the FDA to commence a Phase 1 clinical trial to treat chronic spinal cord injury. The trial, which is taking place at The University of California, San Diego or UCSD, commenced in 2014 and the first subject was treated in October 2014. The study enrolled four AIS A classification thoracic spinal cord injury subjects (motor and sensory complete), one to two years’ post-injury at the time of stem cell treatment. In January of 2016 we reported six-month follow-up data on all four subjects. The stem cell treatment was found to be safe and well-tolerated by the subjects enrolled and there were no serious adverse events.

In June 2018, the study investigators published the results of the first cohort in the journal Cell Stem Cell. The results support the potential of transplanted NSI-566 to benefit patients with cSCI. At 18 months to 27 months after surgery, the analysis of motor and sensory function and electrophysiology showed changes in three of the four patients after NSI-566 transplantation. There was no evidence of serious adverse events, suggesting the procedure is well-tolerated.

Substantially all of the clinical costs of this study have been, and will continue to be, funded by grants arranged through UCSD.

NSI-189 (Small Molecule Pharmaceutical Compound).

NSI-189,a new chemical entity with what we believe to work through a novel mechanism of action and stimulates neurogenesis of human hippocampus derived neural stem cells in vitro and neurogenesis in mouse hippocampus in vivo. Because studies have linked depression with impaired hippocampal neurogenesis, we believe that NSI-189 may provide an effective treatment for patients suffering from Major Depressive Disorder or MDD by promoting synaptogenesis or neurogenesis in the hippocampus.

Major Depressive Disorder (MDD)

Major depressive disorder (also known as recurrent depressive disorder, clinical depression, major depression, unipolar depression, or unipolar disorder) is a mental disorder characterized by episodes of all-encompassing low mood accompanied by low self-esteem and loss of interest or pleasure in normally enjoyable activities. According to the World Health Organization, MDD is the leading cause of disability in the U.S. for persons age 15 to 44.In 2015, an estimated 16.1 million adults aged 18 or older in the United States had at least one major depressive episode in the prior year. This number represented 6.7% of all U.S. adults¹. Treatment of MDD is characterized by a high level of patient turnover due to low efficacy and high side effects. It is estimated that 67% of patients will fail their first line therapy, 75% will then fail their second line prescription and 80% will then fail their third line prescription². These factors combine to create a significant opportunity for a differentiated therapeutic agent, particularly one that may act through a novel mechanism of action.

Clinical Experience with NSI-189

Major Depressive Disorder

We have completed an exploratory Phase 2 randomized, placebo-controlled, double-blind clinical trial for the treatment of MDD in an outpatient setting. The study randomized 220 subjects into three cohorts: NSI-189 40 mg twice daily (BID), NSI-189 40 mg once daily (QD), or placebo. After the initial screening period, the dosing portion of the trial was 12 weeks in duration. There was a two week wash out period for those subjects enrolled who were taking an anti-depressant at the time of screening.

The study was 80% powered to show an improvement in the primary endpoint, compared to placebo, with an assumed effect size of Cohen’s d=0.5 (p ≤ 0.05). Subjects eligible for the study had to be diagnosed with major depressive disorder, recurrent, as per Diagnostic and Statistical Manual of Mental Disorders V³, scoring 20 or greater on the MADRS, at screening and baseline and experiencing at least one eight-week MDD episode. The MADRS score was confirmed to be 20 or greater via remote SAFER interview by an independent rater prior to the baseline visit. After the 12-week trial period, eligible subjects were given the opportunity to enroll in a separate six-month observational study to assess the durability of effect defined as the time until the start of a new antidepressant treatment (ADT). Both the interventional and the observational studies were conducted under the direction of study principal investigator (PI) Maurizio Fava, MD, Executive Vice Chair, Department of Psychiatry and Executive Director, Clinical Trials Network and Institute, Massachusetts General Hospital.

On July 25, 2017, we announced top-line results from the trial. The study did not meet its primary efficacy endpoint of a statistically significant reduction in depression symptoms on the Montgomery-Asberg Depression Rating Scale (MADRS), compared to placebo. Both doses were well-tolerated with no serious adverse events reported.

On December 5, 2017, we presented an updated analysis – including reports on all secondary scales – from the Phase 2 study of NSI-189 in MDD at the 56th American College of Neuropsychopharmacology (ACNP) Annual Meeting. Three additional patient reported outcomes showed statistically significant improvements in depressive and cognitive symptoms: Symptoms of Depression Questionnaire (SDQ): 40mg, p=0.044, Cognitive and Physical Functioning Questionnaire (CPFQ): 40 mg; p = 0.035, and Quick Inventory of Depressive Symptomatology Scale (QIDS-SR): 40 mg; p = 0.040 (Stage 2). Thus, with all three patient reported outcome scales (SDQ, CPFQ, and QIDS-SR) NSI-189 reached statistical significance over placebo.

In addition, we presented data on NSI-189’s effect on cognition as measured by computer-administered objective tests of cognition in the MDD patients. Two different test methods were used: Cogstate® and CogScreen®. Cogstate did not yield statistically significant results. In CogScreen® test, NSI-189 40 mg showed statistically significant improvement (p<0.05) on objective measures of executive functioning, attention, working memory, and memory.

NSI-189 appeared to be safe and well tolerated with no serious adverse events. There were no clinically meaningful changes in body weight or BMI, or in sexual function inventory. The study results have been published (Papakostas GI, et al. (2019). Mol Psychiatry. 2019 Jan 9. doi: 10.1038/s41380-018-0334-8. [Epub ahead of print] PubMed PMID: 30626911).

Our Technologies

Stem Cells

From a therapeutic perspective, our stem cell-based technology enables the isolation and large-scale expansion of regionally specific, human neural stem cells from all areas of the developing human brain and spinal cord thus enabling the generation of physiologically relevant human neurons of different types. We believe that our stem cell technology will enable the replacement or supplementation of malfunctioning or dead cells thereby creating a neurotrophic environment that offers protection to neural tissue as a way to treat disease and injury. Many significant and currently untreatable human diseases arise from the loss or malfunction of specific cell types in the body. Our focus is the development of effective methods to generate replacement cells from neural stem cells. We believe that creating a neurotrophic environment by replacing damaged, malfunctioning or dead neural cells with fully functional ones may be a useful therapeutic strategy in treating many diseases and conditions of the central nervous system.

Our Proprietary and Novel Screening Platform

Our human neural stem cell lines form the foundation for functional cell-based assays used to screen for small molecule compounds that can impact biologically relevant outcomes such as neurogenesis, synapse formation, and protection against toxic insults.We have developed over 300 unique stem cell lines representing multiple different regions of the developing brain and spinal cord at multiple different time points in development, enabling the generation of physiologically relevant human neural cells for screening, target validation, and mechanism-of-action studies. This platform provides us with a unique and powerful tool to identify new chemical entities to treat a broad range of nervous system conditions. NSI-189 was discovered using our stem cell-based screening platform.

Small Molecule Pharmaceutical Compounds.

Utilizing our proprietary stem cell-based screening capability, we have discovered and patented a series of small molecule compounds. We believe our low molecular weight organic compounds can efficiently cross the blood/brain barrier. In mice, research indicated that the small molecule compounds both stimulate neurogenesis of the hippocampus and increase its volume. We believe the small molecule compounds may promote synaptogenesis and neurogenesis in the human hippocampus thereby providing therapeutic benefits in indications such as MDD and may also provide clinical benefit in indications such as Angelman Syndrome, Diabetic Neuropathy, Cognition, Stroke and Radiation Induced Cognitive Deficit.

Intellectual Property

We believe that we have developed and maintain a strong portfolio of patents and patent applications that form the proprietary base for our research and development efforts. We own or exclusively license approximately 10 U.S. issued and pending patents and approximately 55 foreign issued and pending patents related to our stem cell technologies for use in treating disease and injury. We own approximately 15 U.S. issued and pending patents and approximately 75 foreign issued and pending patents related to our small molecule compounds.

Employees

As of April 30, 2019, we had five (5) full-time employees. We also use the services of several outside consultants in business and scientific matters.

Our Corporate Information

We were incorporated in Delaware in 2001. Our principal executive offices are located at 20271 Goldenrod Lane, Germantown, Maryland 20876, and our telephone number is (301) 366-4841. Our website is located at www.neuralstem.com.

We have not incorporated by reference into this report the information in, or that can be accessed through, our website and you should not consider it to be a part of this report.

PROPERTIES

We currently operate one facility located in the United States and one facility located in China. Our corporate offices and primary research facilities are located in Germantown, Maryland, where we lease approximately 1,500 square feet. This lease provides for monthly payments of approximately $5,700 per month. Our prior lease expired on December 31, 2018. We are currently operating on a month-to-month lease as we negotiate an extension.

In 2015, we entered into a lease consisting of approximately 3,100 square feet of research space in San Diego, California. This lease provides for current monthly payments of approximately $12,000 and expires on August 31, 2019. In May 2017, we ceased-use of this property and in April 2018, we entered into an agreement for the sub-lease of the property.

LEGAL PROCEEDINGS

As of the date hereof, there are no material pending legal or governmental proceedings relating to our company or properties to which we are a party, and to our knowledge there are no material proceedings to which any of our directors, executive officers or affiliates are a party adverse to us or which have a material interest adverse to us.

OUR MANAGEMENT

Directors, Executive Officers and Significant Employees

The names of our directors and executive officers and their ages, positions, and biographies as of June 15, 2019, are set forth below. Our executive officers are appointed by, and serve at, the discretion of the Board. There are no family relationships among any of our directors or executive officers.

Kenneth Carter PhD,, has served as our executive chairman since January 2019. Dr. Carter has over 20 years of experience working in positions of substantial responsibility in the development and operations of early-stage biotechnology companies. Since 2010 when he co-founded the company, Dr. Carter has served as chairman of the board of directors of Noble Life Sciences, a private biotechnology company in Maryland.  From 2011 through 2017, Dr. Carter served as president and chief executive officer of Neximmune, Inc., a private biopharmaceutical company in Maryland.  He continues to serve as senior advisor of NexImmune. Prior to that, from 1999 through 2009, Dr. Carter served as president and chief executive officer of Avalon Pharmaceuticals, Inc. (NASDAQ: AVRX) until the company merged with Clinical Data, Inc. Dr. Carter also currently serves on the following boards of directors (i) since 2016, Antidote Therapeutics, Inc., a private biopharmaceutical company in Maryland, (ii) since 2011, BetaCat Pharmaceuticals, a private pharmaceutical company in Texas, and Maryland BioHealth Innovation, a biotechnology intermediary company in Maryland, and (iii) since 2007, Maryland Health Care Product Development Corporation, a biotechnology investment firm in Maryland.  Dr. Carter additionally serves as a lecturer and Adjunct Faculty member of Johns Hopkins University in Maryland. Dr. Carter holds a BS in Biology and Chemistry from Abilene Christian University, a Ph.D. in Human Genetics and Cell Biology from the University of Texas Medical Branch, and a Postdoctoral degree in Cell and Molecular Biology from University of Massachusetts Medical School. In evaluating Dr. Carter’s specific experience, qualifications, attributes and skills in connection with his appointment to our board, we took into account his prior work with both public and private organizations, including his experience in building biopharmaceutical organizations, his strong business development background and his past experience and relationships in the biopharma and biotech fields.

Scott V. Ogilvie, has served as a director on our board since February 2008. Mr. Ogilvie is currently the Executive Chairman of Formula Four Beverages, Inc., a functional beverage company that manufactures and sell OXiGEN water.  Additionally, Mr. Ogilvie is currently the President of AFIN International, Inc., an international private equity and strategic advisory firm, which he founded in 2006. Prior to December 31, 2009, he was CEO of Gulf Enterprises International, Ltd, an investment and strategic advisory company with primary activities in the Middle East and North Africa. He held this position since August 2006. Mr. Ogilvie previously served as Chief Operating Officer of CIC Group, Inc., an investment manager, a position he held from 2001 to 2007. He began his career as a corporate and securities lawyer with Hill, Farrer & Burrill, and has extensive public and private corporate management and board experience in finance, real estate, and life science and technology companies. During the past 5 years, Mr. Ogilvie has served on the board of directors of  Inpsyr Therapeutics, Inc. (OTCQB: NSPX) and Oxigenesis, Inc. and the Advisory Board of Profusa, Inc..  In evaluating Mr. Ogilvie’s specific experience, qualifications, attributes and skills in connection with his appointment to our board, we took into account his prior work in both public and private organizations regarding corporate finance, securities and compliance and international business development. 

William Oldaker, has served on our board of directors since April 2007. Mr. Oldaker is a founder and partner in the Washington, D.C. law firm of Oldaker Group LLC. Prior to founding the firm in 1993, Mr. Oldaker was a partner in the Washington office of the law firm of Manatt, Phelps and Phillips from 1987 to 1993. In 2004, Mr. Oldaker was a founder of Washington First Bank in Washington, D.C. and serves as a member of the board of directors. He previously served as a director of Century National Bank, from 1982 until its acquisition in 2001. Mr. Oldaker was appointed by President Clinton to serve as a commissioner on the National Bioethics Advisory Commission, a post he held until 2001. He is a member of the Colorado, D.C. and Iowa Bar Associations, the Bar Association for the Court of Appeals, D.C., and the Bar of the United States Supreme Court. He is also a partner in The National Group, a consulting firm. In evaluating Mr. Oldaker’s specific experience, qualifications, attributes and skills in connection with his appointment to our board, we took into account his extensive experience with managing and developing federal government regulations and expertise in the legislative process. He also was a founding member, and has served on the board of directors of a bank for almost thirty years.

Sandford D. Smith, has served on our board of directors since March 2014. Since December 2011, Mr. Smith has served as Founder and Chairman of Global Biolink Partners. From 1996 until 2011, Mr. Smith served in various senior and executive management positions at Genzyme Corporation (Formerly NASDAQ: GENZ), including Executive Vice President and President, International Group with responsibility for the commercial activities for Genzyme’s products outside of the U.S. Prior to joining Genzyme, Mr. Smith served from 1986 to 1996 as President and Chief Executive Officer and a Director of Repligen Corporation, a formerly publicly traded biotechnology company. Mr. Smith previously held a number of positions with Bristol-Myers Squibb Company (NYSE: BMY) from 1977 to 1986, including Vice President of Business Development and Strategic Planning for the Pharmaceutical Group. Mr. Smith currently serves as a director of Cytokynetics, Inc. (NASDAQ: CYTK), Apricus Biosciences, Inc. (NASDAQ: APRI) and as chairman of Aegerion Pharmaceuticals, Inc. (NASDAQ: AEGR) and. Mr. Smith serves as a member of the President’s Advisory Board of Brigham and Women’s Hospital in Boston, member of the Advisory Board of Tullis Health Investors in Greenwich, and an advisor to BioNEST Partners in New York and Paris. Mr. Smith also is the founder of Smith Scholars, a medical residency program for physicians from resource-poor nations. In selecting Mr. Smith as a board member, the board took into account his history of marketing and developing of therapies targeted at rare disease or those with orphan designations as well as his general experience in the biotech industry.

Cristina Csimma Pharm. D, MHP,, has served on our board of directors since September 2017. She also serves on the Board of Directors of Idera Pharmaceuticals (NASDAQ: IDRA), a clinical stage biopharmaceutical company and T1D Exchange, a nonprofit research organization for type 1 diabetes. She also serves on various advisory boards, including: the Muscular Dystrophy Association Venture Philanthropy Scientific Advisory Committee; the Executive Oversight Board to the National Institutes of Health (NIH) NeuroNext Network; the Harvard and Brigham and Women’s Hospital MRCT Center External Advisory Board, and the TREAT-NMD Advisory Committee for Therapeutics (TACT) She was previously the Executive Chair of the Board of Directors of Exonics Therapeutics, a Director of Juniper Pharmaceuticals (acquired in August 2018 by Catalent), Vtesse (acquired in March 2017 by Sucampo Pharmaceuticals) and Cydan, where she was also President and founding CEO, the Vice President of Drug Development at Virdante Pharmaceuticals Inc (acquired by Momenta), Principal at Clarus Ventures LLC, and held roles in Clinical Development and Translational Research at Wyeth (now Pfizer), Genetics Institute and Dana Farber Cancer Institute. Dr. Csimma holds both a Doctor of Pharmacy and a Bachelor of Science in Pharmacy from the Massachusetts College of Pharmacy and Allied Health Sciences, as well as a Master of Health Professions from Northeastern University. In selecting Dr. Csimma, the board took into account her vast experience in the pharmaceutical industry, including her successes in developing drugs for various diseases throughout her career.

Binxian Wei, has served on our board of directors since February 2019. He has been the V.P. of Darsheng Trade & Tech. Development Co, Ltd. (a subsidiary to Tianjin Tiayo Pharmaceutical Co., Ltd.) since 2015. He is responsible for API and finished dosage marketing for Chinese pharmaceutical companies. From 2008 through 2010, he worked as a business development manager for Sakai Trading.  He holds a Master’s degree in Mathematical & Computer Sciences from Colorado School of Mines, a Master’s Degree and Bachelor’s Degree in Chemical Engineering from Tianjin University in China. Bin-Xian Wei was appointed as the director representative of the Series A 4.5% Convertible Preferred Stock by Tianjin Pharmaceuticals Group International Holdings Co., LTD, the sole holder of the outstanding Series A 4.5% Convertible Preferred Stock.

David J. Mazzo, PhD, has served on our board of directors since June 2019.  Dr. Mazzo brings over 35 years of experience in the pharmaceutical industry.  Dr. Mazzo currently serves as President and Chief Executive Officer and a Director of Caladrius Biosciences (NASDAQ: CLBS), a late-stage therapeutics development biopharmaceutical company developing autologous cell therapies for select cardiovascular and autoimmune diseases.  Dr. Mazzo also serves on the Board of Directors of EyePoint Pharmaceuticals (formerly known as pSivida Corp) (NASDAQ: EYPT), a biopharmaceutical company with a focus on products for the diseases of the eye.  Previously, Dr. Mazzo served from August 2008 to October 2014 as Chief Executive Officer and as a member of the Board of Directors of Regado Biosciences, Inc., (NASDAQ: RGDO) a pharmaceutical company focused on the development of novel antithrombotic drug systems for acute and sub-acute cardiovascular indications.  Prior to his leading Regado, from March 2007 to April 2008, Dr. Mazzo was President, Chief Executive Officer and a Director of Æterna Zentaris, Inc., (NASDAQ: AEZS), an international biopharmaceutical company.  From 2003 until 2007, Dr. Mazzo served as President, Chief Executive Officer and a director of Chugai Pharma USA, LLC, a biopharmaceutical company which was the U.S. subsidiary of Chugai Pharmaceutical Co., Ltd. of Japan and a member of the Roche Group (Switzerland).   Prior to joining Chugai, Dr. Mazzo held executive positions at several large international pharmaceutical companies, including:  Schering-Plough Corporation, a publicly held pharmaceutical company that was subsequently acquired by Merck & Co., Inc. where he was also a Director of the Essex Chimie European subsidiary; Hoechst Marion Roussel, Inc., the US subsidiary of Hoechst AG, which was subsequently acquired by Sanofi, a multinational pharmaceuticals company; and Rhone-Poulenc Rorer, Inc., a subsidiary of Rhone-Poulenc SA, a French pharmaceuticals company, which was subsequently acquired by Hoechst AG.  From October 2005 through January 2015, he also served on the board of directors of Avanir Pharmaceuticals, , a biopharmaceutical company which was sold to Otsuka Holdings in 2015.  Dr. Mazzo earned a B.A. in the Honors Program (Interdisciplinary Humanities) and a B.S. in Chemistry from Villanova University.  In addition, Dr. Mazzo received his M.S. in chemistry and his Ph.D. degree in analytical chemistry from the University of Massachusetts, Amherst.  He was also a research fellow at the Ecole Polytechnique Federale de Lausanne, Switzerland.  In selecting Dr. Mazzo, the board took into account his vast experience in the pharmaceutical industry, as well as his service on other boards of directors in the biopharmaceutical industry.

CORPORATE GOVERNANCE

Board of Directors

Our Board consists of seven (7) members. Our business, property and affairs are managed under the direction of the Board. Members of the Board are kept informed of our business through discussions with the Executive Chairman and other officers, by reviewing materials provided to them and by participating in meetings of the Board and its committees.

Our Board is responsible for establishing broad corporate policies and for overseeing our overall management. In addition to considering various matters which require its approval, the Board provides advice and counsel to, and ultimately monitors the performance of, our senior management.

Classification of Board

Pursuant to our bylaws, we have a classified Board which is divided into three classes with staggered three-year terms. Only one class may be elected each year, while the directors in the other classes continue to hold office for the remainder of their three-year terms. The Board may, on its own, determine the size of the exact number of directors on the Board and may fill vacancies on the Board. Notwithstanding, the holder of our Series A 4.5% Convertible Preferred Stock has the right to appoint one board member. Binxian Wei has been appointed and currently serves as such director as of February 5, 2019. The procedure for electing and removing directors on a classified board of directors generally makes it more difficult for stockholders to change management control by replacing a majority of the board at any one time, and the classified board structure may discourage a third party tender offer or other attempt to gain control of the Company and may maintain the incumbency of directors. In addition, under our bylaws, directors may only be removed from office by a vote of the majority of the shares then outstanding and eligible to vote.

Independent Directors

Our common stock is listed on the NASDAQ Capital Market. As such, we are subject to the NASDAQ Stock Market LLC director independence standards. In accordance with these standards, in determining independence the Board affirmatively determines whether a director has a "material relationship" with Neuralstem that would compromise his or her independence from management or would cause him or her to fail to meet the NASDAQ’s specific independence criteria. When assessing the "materiality" of a director's relationship with Neuralstem, the Board considers all relevant facts and circumstances, not merely from the director's standpoint, but from that of the persons or organizations with which the director has an affiliation, and, where applicable, the frequency and regularity of the services, and whether the services are being carried out at arm's length in the ordinary course of business. Material relationships can include commercial, consulting, charitable, familial and other relationships. A relationship is not material if, in the Board's judgment, it is not inconsistent with the NASDAQ’S director independence standards and it does not compromise a director's independence from management.

Corporate Governance Guidelines and Code of Ethics

We have adopted Corporate Governance Guidelines that are intended to ensure that our Board has the necessary authority and practices in place to review and evaluate our business operations and to make decisions that are independent of management. The Corporate Governance Guidelines are intended to align the interests of directors and management with those of our shareholders and establish practices for the Board with regard to its oversight of the Company. Under our guidelines, the Board conducts a self-evaluation to assess adherence to the Corporate Governance Guidelines and identify opportunities to improve Board performance. A copy of our codes can be viewed on our website at www.neuralstem.com under “Governance Documents” in the “Corporate Governance” section under the “Investors” tab.

In addition to our Corporate Governance Guidelines, we have adopted several guidelines intended to promote the honest and ethical conduct of our officers, directors, employees and consultants. They include, our "Code of Ethics” that applies to our officer, directors and employees and our “Finance Code of Professional Conduct” that applies to our principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, and any persons who participate in our financial reporting process. A copy of our codes can be viewed on our website at www.neuralstem.com under “Governance Documents” in the “Corporate Governance” section under the “Investors” tab.

The codes incorporate our guidelines designed to deter wrongdoing and to promote honest and ethical conduct and compliance with applicable laws and regulations. The codes also incorporate our expectations of our officers, directors and employees that enable us to provide accurate and timely disclosure in our filings with the SEC and other public communications. In addition, the codes incorporate guidelines pertaining to topics such as complying with applicable laws, rules, and regulations; reporting violations; and maintaining accountability for adherence to the codes.

We intend to disclose future amendments to certain provisions of our codes, or waivers of such provisions on our web site within four business days following the date of such amendment or waiver.

Stock Ownership Guidelines

On November 10, 2016, we adopted stock ownership guidelines for our Chief Executive Officer, Chief Scientific Officer and named executive officers. Under the guidelines, our CEO and CSO are expected to own shares of our common stock that have a value equal to 2x their respective annual salaries. All other named executive officers or Section 16 filing employees are expected to own shares of our common stock that have a value equal to 1x their respective annual salaries. Shares may be owned directly by the individual or owned jointly with or separately by the individual’s spouse, or held in trust for the benefit of the individual, the individual’s spouse or children. Share ownership requirements must be met within five years after first becoming subject to the guidelines.

Committees

We have established three (3) corporate governance committees comprised of the: (i) Audit Committee; (ii) Compensation Committee; and (iii) Governance and Nominating Committee. The committee membership and the function of each of the committees are described below. Each committee is governed by written committee charters. We periodically review such charters and may amend or update the process and procedures contained therein. In the event of such amendment or update, we will promptly post our revised charter on our website. In addition to our established committee, we may from time to time establish special committees as the Board deems necessary. A copy of each respective committee’s charter can be viewed on our website at www.neuralstem.com under “Corporate Governance” under the “Investors” tab.

The table below identifies the Board’s standing committees and committee membership as of June 15, 2019:

Each member of the Audit Committee, the Compensation Committee and the Governing and Nominating Committee is considered independent under Nasdaq listing criteria.

Audit Committee

We have a designated audit committee in accordance with section 3(a)(58)(A) of the Exchange Act. The members of the Audit Committee are Messrs. Ogilvie, Oldaker and Smith. The main function of our Audit Committee is to oversee our accounting and financial reporting processes. The Audit Committee assists the Board in fulfilling its oversight and monitoring responsibility of reviewing the financial information provided to shareholders and others, appoints Neuralstem’s independent registered public accounting firm, reviews the services performed by the independent registered public accounting firm and Neuralstem’s finance department, evaluates Neuralstem’s accounting policies and the system of internal controls established by management and the Board, reviews significant financial transactions, and oversees enterprise risk management.

 The Board has determined that Messrs. Ogilvie, Oldaker are each an “audit committee financial expert” within the meaning of SEC rules. An audit committee financial expert is a person who can demonstrate the following attributes: (1) an understanding of generally accepted accounting principles and financial statements; (2) the ability to assess the general application of such principles in connection with the accounting for estimates, accruals and reserves; (3) experience preparing, auditing, analyzing or evaluating financial statements that present a breadth and level of complexity of accounting issues that are generally comparable to the breadth and complexity of issues that can reasonably be expected to be raised by the Company’s financial statements, or experience actively supervising one or more persons engaged in such activities; (4) an understanding of internal controls and procedures for financial reporting; and (5) an understanding of audit committee functions.

Governance and Nominating Committee

Our Governance and Nominating Committee’s purpose is to assist our board of directors in identifying individuals qualified to become members of our board of directors consistent with criteria set by our board of directors, to oversee the evaluation of the board of directors and management, and to develop and update our corporate governance principles. Mr. Ogilvie and Drs. Mazzo and Csimma are the members of the Governance and Nominating Committee.

The Governance and Nominating Committee evaluates candidates for the Board. Candidates may come to the attention of the Governance and Nominating Committee through current Board members, professional search firms, stockholders or other persons. The Governance and Nominating Committee will consider nominees recommended by our stockholders.

Compensation Committee

The Compensation Committee reviews and approves the compensation arrangements for Neuralstem’s executive officers, including the CEO, administers our equity compensation plans, and reviews the Board’s compensation. Messrs. Smith, and Oldaker are members of the Compensation Committee.

Limitation on Liability and Indemnification of Directors and Officers

Our certificate of incorporation states that, to the fullest extent permitted by the Delaware General Corporate Law, or the DGCL, no director shall be personally liable to us or our stockholders for monetary damages for breach of fiduciary duty as director; provided, however, that this provision eliminating personal liability of a director shall not eliminate or limit the liability of a director (i) for any breach of the director’s duty of loyalty to us or our stockholders, (ii) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii) under section 174 of the DGCL, or (iv) for any transaction from which the director derived an improper personal benefit.

Section 174 of the DGCL provides, among other things, that a director who willfully and negligently approves of an unlawful payment of dividends or an unlawful stock purchase or redemption may be held liable for such actions. A director who was either absent when the unlawful actions were approved or dissented at the time, may avoid liability by causing his or her dissent to such actions to be entered in the books containing the minutes of the meetings of the board of directors at the time the action occurred or immediately after the absent director receives notice of the unlawful acts.

Our certificate of incorporation and bylaws provide that we will indemnify our directors and officers and may indemnify our employees or agents to the fullest extent permitted by law against liabilities and expenses incurred in connection with litigation in which they may be involved because of their offices or positions with us. However, nothing in our certificate of incorporation or bylaws protects or indemnifies a director, officer, employee or agent against any liability to which that person would otherwise be subject by reason of willful misfeasance, bad faith, gross negligence or reckless disregard of the duties involved in the conduct of that person’s office or position. To the extent that a director has been successful in defending any proceeding brought against him, the Delaware General Corporation Law provides that the director shall be indemnified against reasonable expenses incurred by him in connection with the proceeding.

EXECUTIVE COMPENSATION

Compensation Philosophy and Objectives

Our non-executive director and executive compensation programs impact all of our employees by establishing a general framework for compensation and creating a work environment focused on expectations, goals, and rewards. Because the performance of every employee is important to the overall success of the Company, our Board is mindful of the impact that our compensation programs have on all of our employees. In considering our compensation policies and practices, our Board balances the needs to conserve cash and minimize stockholder dilution against the requirements to attract, retain, and motivate our non-executive directors, executives and other employees while fostering an innovative and entrepreneurial corporate culture. Our Board strives to act in the long-term best interests of the Company and its stockholders, as well as ensure that the components of compensation do not, individually or in the aggregate, encourage excessive risk-taking.

Compensation-Setting Process

Role of the Board, Compensation Committee and Management

The Compensation Committee is responsible for overseeing, determining, recommending and approving the compensation of our non-executive directors, CEO and other executives, including the other Named Executive Officers. From time to time during the year, the Compensation Committee will review the compensation of our non-executive directors, CEO and other executives, determine whether to make any adjustments to their respective compensation. With regard to our executive officers, the Compensation Committee reviews base salaries, determine whether an annual incentive award was earned for the last completed fiscal year based on its assessment of the Company and individual performance for that period and, if so, the amount of any such bonuses, and determine whether to make equity awards based on Company and individual performance.

As described below, the Compensation Committee gives considerable weight to our CEO’s performance evaluation of the other executives because of his direct knowledge of each executive’s performance and contributions. The Compensation Committee conducts an annual review of our executives’ compensation and considers adjustments in executive compensation levels to ensure alignment with our compensation strategy and competitive market practices. During this process, the Compensation Committee is also mindful of the results of the shareholder’s Advisory Vote on Executive Compensation during the most recent vote and although not binding, is considered in the compensation setting process.

Role of Senior Management

The Compensation Committee typically seeks the input of our CEO when discussing the performance of and compensation for our other executives, including the other Named Executive Officers. In this regard, at the request of the Compensation Committee our CEO reviews the performance of the other executives, including the other Named Executive Officers, annually and presents to the Compensation Committee his conclusions and recommendations as to their compensation, including base salary adjustments, annual incentive awards, and long-term equity incentive awards. The Compensation Committee then uses these recommendations as one factor in its deliberations to determine the compensation of our executives.

Role of Compensation Consultant

The Compensation Committee is authorized to retain the services of one or more executive compensation advisors, as it sees fit, in connection with the oversight of our non-executive director and executive compensation program and related policies and practices. For compensation related to the year end 2018, the Compensation Committee consulted with Radford, an Aon Hewitt Company and national compensation consulting firm with regard to our executive compensation program. Radford was engaged to provide the Compensation Committee with information, recommendations, and other advice relating to these compensation programs on an ongoing basis. Radford was directly engaged and serves at the discretion of the Compensation Committee and provides no other services to the Company.

Competitive Positioning

In making compensation decisions, the Compensation Committee reviews independent survey data, such as the Radford Global Life Sciences compensation survey, as well as publicly-available data from companies with which we compete for executive talent. The companies chosen for comparison may differ from one executive to the next depending on the scope and nature of the business for which the particular executive is responsible.

Although the compensation data from comparable companies is useful comparative information, the Compensation Committee does not require that the compensation components of the non-executive directors or individual executives bear any particular relationship to the compensation of non-executive director or executives of similar positions of those comparable companies. In development-focused companies within the biopharmaceutical industry, many traditional measures of corporate performance, such as earnings-per-share or sales growth, may not readily apply in reviewing the performance of executives. Because of the Company’s current stage of development, the Compensation Committee evaluates other indications of performance, including progress towards the Company’s research and development programs and corporate development activities, as well as the Company’s success in securing capital sufficient to enable the Company to continue research and development activities, in its decision-making process.

Say-on-Pay

At our 2017 Annual Meeting of Stockholders held on June 22, 2017, we submitted two proposals to our stockholders regarding our executive compensation practices.

The first was an advisory vote on the 2016 compensation awarded to our named executive officers (commonly known as a “say-on-pay” vote). At our 2017 annual meeting, excluding broker non-votes, approximately 1,769,425 shares cast votes with regard to the say-on-pay proposal. Of those, 1,556,672 or approximately 88%, of the shares approved the compensation of named executive officers. We believe that the outcome of our say-on-pay vote signals our stockholders’ support of our compensation approach, specifically our efforts to retain and motivate our named executive officers. In light of this stockholder support, the Compensation Committee determined not to change its approach to compensation. However, even though stockholders demonstrated overwhelming support for our compensation approach in 2017, the Compensation Committee annually reevaluates our compensation practices to determine how they might be improved. The Compensation Committee will continue to consider the outcome of say-on-pay votes when making future compensation decisions for our named executive officers.

The second proposal was a vote on the frequency of future stockholder advisory votes regarding compensation awarded to named executive officers (commonly known as a “say-when-on-pay” vote). The frequency of every year received the highest number of votes cast. Notwithstanding these results, our Board of Directors determined that we would hold our next say-on-pay votes at the 2020 Annual Meeting.

Summary Compensation Table

The following table sets forth information regarding the compensation paid to, or earned by, our named executive officers for the years ended December 31, 2018 and 2017.

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Employment Agreements and Arrangements and Change-In-Control Arrangements

Employment Agreement with Kenneth Carter, PhD

On December 18, 2018, Dr. Kenneth Carter was appointed the executive chairman of the Company to be effective January 1, 2019 where he will servein compliance with the current public information requirement under Rule 144.

Except for Ladenburg Thallman & Co. Inc. who served as our principal executive officer and principal financial officer. In connectionplacement agent with Dr. Carter’s employment, we entered into an at-will employment agreement. Pursuantrespect to the termsApril 2023 Offering, as well as placement agent or underwriter in a number of his employment agreement, he received a signing bonus of $20,000 and receives a base salary of $395,000 per year and is eligible to receive an annual cash bonus based on achievement of certain performance milestones with a target of 50% of his base salary.

Dr. Carter was also issued an inducement option to purchase 800,000 shares of common stock on December 12, 2018. The inducement option has an exercise price of $0.425 per share, a term of ten (10) years, and vests as follows: (i) 200,000 options on the effective date, (ii) 100,000 options on the six (6) month anniversaryour prior offerings none of the effective date, (iii)100,000 options vest on the two (2) year anniversary of the effective date, and (iv) the remaining 400,000 vest upon the achievement of performance-based milestones to be completed in a time domain within six (6) to twelve (12) months following the effective date.The Executive Chairman commenced employment on January 1, 2019 and the Company considers this to be the accounting grant date of the award.

For a twelve (12) month period following the effective date, Dr. Carter’s employment agreement further calls for the adjustment in the number of shares underlying the inducement option in the event of a capital raising transactionselling stockholders nor any persons having control over such that Dr. Carter’s ownership percentage would remain the same prior and subsequent to such transaction.

Dr. Carter’s employment agreement also provides for severance in the event the Company terminates his employment without “cause”selling stockholders have held any position or he resignsoffice with “good reason,”us or as a result of his death or disability as each term is defined in the employment agreement or upon termination due to death or disability, Dr. carter will be entitled to (i) payment of his accrued base salary, unreimbursed expenses, unpaid but earned bonuses, and accrued and unused vacation time; (ii) the accelerated vesting of 100% of Dr. Carter’s then outstanding unvested equity awards, (iii) the continued payment of his base salary for (a) eighteen (18) months following the termination if such termination occurs within six (6) months of the effective date or if termination occursour affiliates within the eighteen (18) month period followinglast three years nor has had a “sale event”material relationship with us or “changeany of control” and (b) twelve (12) months followingour predecessors or affiliates within the termination date if termination occurs after the initial six (6) month period following the effective date and (iv) payment of a pro rata portion of his target annual bonus for the year in which termination occurs. Dr. Carter will not be entitled to any continued payment of salary after the twenty-four (24) month anniversary of the effective date

In the event of a termination for any reasonpast three years, other than “Cause,” we will be required to make such payments, approximately as follows:

Mr. Daly also entered into a confidential information and invention assignment agreement governing the ownership of any inventions and confidential information. Mr. Daly also entered into the Company’s standard indemnification agreement which is entered into by the Company’s officers and directors.our shares or other securities.

Mr. Daly’s agreement contained non-solicitation, and confidentiality covenants. The agreement may be terminated by either party with our without cause and without prior notice subject to the termination provisions as discussed.

Employment Agreement with Jonathan Lloyd Jones

We had a written employment agreement with Jonathan Lloyd Jones our Chief Financial Officer. Pursuant to the agreement and until he left the Company on April 30, 2017 to pursue other opportunities, Mr. Lloyd Jones was entitled to an annual salary of $315,000 paid monthly.  Additionally, Mr. Lloyd Jones’ employment agreement provided for certain performance bonuses as determined from time to time by our Compensation Committee. For 2016, Mr. Lloyd Jones’ target levels for annual incentive bonus and long term equity compensation were: (i) 50%, and (ii) 50%, of Mr. Lloyd Jones’ 2016 base salary, respectively. For 2017, Mr. Lloyd Jones’ target bonus levels for annual incentive and long term equity compensation bonuses had not been determined prior to his leaving the Company. Mr. Lloyd Jones’ employment agreement also provided for the reimbursement of reasonable business expenses.  Mr. Lloyd Jones’ employment agreement was at-will.

Mr. Lloyd Jones’ employment agreement also provided that in the event Mr. Lloyd Jones is terminated for any reason other than “Cause”, then he shall be entitled to (i) severance in an amount equal to one year of his annual salary and (ii) the immediate vesting of all previously unvested stock options granted to Mr. Lloyd Jones upon execution of his employment agreement, or 3,847 aggregate options (collectively, “Termination Provisions”).  Mr. Lloyd Jones left the Company on April 30, 2017 and pursuant to a separation agreement and release, he received in lieu of any compensation owed under the terms of his employment, (i) payment of an aggregate of $315,000 payable in twelve (12) equal monthly installments and (ii) the vesting of all outstanding options previously granted to him.

Equity Compensation Plans

We currently have the following equity compensation plans outstanding as of the date hereof: (i) 2007 Equity Compensation Plan, (ii) 2010 Equity Compensation Plan, (iii) Inducement Award Stock Option Plan and (iv) 2019 Equity Incentive Plan.

For information related to our equity compensation plans for which our officers and directors are issued securities from, please see ”Equity Compensation Plan Information” contained in the Section entitled “Market for Registrant’s common equity, related stockholder matters” contained in this registration statement.

Outstanding Equity Awards Value at Fiscal Year-End

The following table includes information with respect to the value of all outstanding equity awards previously awarded to our named executive officers as of December 31, 2018.

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DIRECTOR COMPENSATION

Board Compensation Arrangements

Our non-executive director compensation program is overseen and approved by our Compensation Committee and is designed to enable us to continue to attract and retain highly qualified directors by ensuring that director compensation is in line with peer companies competing for director talent, and is designed to address the time, effort, expertise, and accountability required of active board membership. In general, we believe that annual compensation for non-employee directors should be cash and equity based and designed to compensate members for their service on the Board and its committees, align the interests of directors and stockholders and, by vesting over time, to create an incentive for continued service on the Board. Our Compensation Committee annually reviews and approves compensation programs related to our non-employee members of the Board of Directors.

The following are the terms of our legacy and current amended Director Compensation Plans pursuant to which non-employee directors are compensated:

Current Plan (currently in effect)

Effective July 1, 2017, the compensation committee of the Company approved an amendment to the non-employee Board compensation policy, whereby each non-employee director will receive a $100,000 annual board fee subject to annual review and adjustment. The annual board fee is payable as follows: (i) up to $50,000 in cash and (ii) the balance in equity grants consisting of common stock purchase options, restricted stock units or restricted stock, at the election of each non-employee director. Directors electing to receive a portion of their annual fee in cash will receive four equal quarterly payments during the year. Applicable equity grants will be made as of July 1 of each year and will vest quarterly over the grant year. Fees for new directors appointed or elected during the year will be pro-rated and made on the fifth (5^th) day following such approval and acceptance on the Board.

Each non-employee director continuing service will be required to make an election to receive the board fee in either cash, restricted stock, restricted stock units, or common stock options or a combination thereof by June 15th of each year. All grants of restricted stock and restricted stock units will be valued using the adjusted closing bid price of the Company’s common stock on the applicable grant date. All option grants will be valued using the Black-Scholes option pricing model and are subject to customary assumptions used in the preparation of the financial statements.

Board Compensation for 2018 Board Year

The following table summarizes compensation paid to non-employee directors during the board year July 1, 2018 through June 30, 2019.