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Vistagen Therapeutics, Inc.

For the period ended Mar 31, 2026. Filed Jun 15, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2026 · Filed Jun 15, 2026

VTGN$0.16-0.8%Stored close · as of Nov 6, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Table of Contents

Item No. · Page No.
PART I
1.Business1
1A.Risk Factors25
1B.Unresolved Staff Comments79
1C.Cyber Security79
2Properties80
3Legal Proceedings80
4Mine Safety Disclosures81
PART II
5Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities82
6[Reserved]82
7Management’s Discussion and Analysis of Financial Condition and Results of Operations83
7A.Quantitative and Qualitative Disclosures About Market Risk92
8Financial Statements and Supplementary Data93
9Changes in and Disagreements with Accountants on Accounting and Financial Disclosure120
9A.Controls and Procedures120
9B.Other Information120
9C.Disclosure Regarding Foreign Jurisdictions that Prevent Inspections120
PART III
10Directors, Executive Officers and Corporate Governance121
11Executive Compensation128
12Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters139
13Certain Relationships and Related Transactions, and Director Independence143
14Principal Accountant Fees and Services144
PART IV
15Exhibits and Financial Statement Schedules146
EXHIBIT INDEX146
SIGNATURES150

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Forward-Looking Statements

Certain statements in this Annual Report on Form 10-K (Annual Report or Report) may constitute “forward-looking statements” for purposes of the federal securities laws, including the safe harbor provisions of Section 27A of the Securities Act of 1933, as amended (the Securities Act), and Section 21E of the Securities Exchange Act of 1934, as amended (the Exchange Act), that involve substantial risks and uncertainties. Our forward-looking statements include, but are not limited to, statements regarding our or our management team’s expectations, hopes, beliefs, intentions or strategies regarding the future. In addition, any statements that refer to projections, forecasts or other characterizations of future events or circumstances, including any underlying assumptions, are also forward-looking statements. The words “anticipate,” “believe,” “can,” “contemplate,” "continue,” “could,” “estimate,” “expect,” “future,” “intends,” “may,” “might,” “plan,” “possible,” “potential,” “predict,” “project,” “should,” “strategy,” “target,” “will,” “would,” or the negative of these terms or similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. Forward-looking statements in this Report may include, for example, statements about:

the period over which we anticipate our available financial resources will enable us to fund our operating expense;

our ability to obtain additional funding for our operations, including funding necessary to complete further development, approval and, if approved, commercialization of our product candidates;

the format, objectives, strategy, likelihood of success, and cost of our preclinical studies and clinical trials and other product development activities, including the design of our preclinical studies and clinical trials;

the timing of initiation of our preclinical studies and clinical trials;

our ability to recruit, enroll and randomize suitable patients in our clinical trials;

the timing of completion of our preclinical studies and clinical trials and related preparatory work;

our ability to collect and interpret preclinical and clinical data;

the timing and outcome of regulatory interactions, including whether preclinical studies and clinical trials meet the criteria to enable early-stage or late-stage clinical development or support registration of our product candidates;

the potential attributes and benefits of our product candidates;

our ability to obtain and, if obtained, maintain regulatory approval for our product candidates, and any related restrictions, limitations or warnings on the label of an approved product candidate;

the potential for our business development efforts to optimize the potential value of our neuroscience pipeline;

our ability to compete with other companies currently marketing or engaged in the development of treatments for the indications that we pursue or are pursuing for our product candidates;

our ability to obtain and maintain intellectual property protection for our product candidates and the duration of such protection;

our ability to contract with and rely on the performance of third-parties to assist in conducting our preclinical studies and clinical trials and manufacturing our product candidates;

the size and growth potential of the markets for our product candidates, and our ability to serve those markets, either on our own or in partnership with others;

the rate and degree of market acceptance of our product candidates, if approved;

the pricing and reimbursement of our product candidates, if approved;

regulatory changes, including regulatory personnel, and developments in the U.S. and foreign countries;

iii

the impact of laws, regulations, accounting standards, regulatory requirements, judicial decisions and guidance issued by authoritative bodies;

our ability to attract and retain key scientific, medical, commercial and management personnel and the impact of any reductions in force (RIFs);

our estimates regarding expenses, future revenue, and needs for additional financing;

our future financial performance;

our ability to recognize the anticipated benefits of our License and Collaboration Agreement with AffaMed Therapeutics, Inc. (including our ability to receive future payments thereunder) and any other future financing or business development transactions;

the effect of adverse market or macroeconomic conditions, including, among others, tariffs, inflation, interest rates and economic uncertainty, market volatility resulting from global political or economic developments, reduced staffing at the Company, the FDA or other government regulatory agencies, war, international hostilities and terrorism, any future public health epidemics or outbreaks of infectious disease and other factors on any of the foregoing or other aspects of our business operations, including but not limited to our preclinical studies, clinical trials and other product development activities, healthcare systems and the global economy as a whole; and

other risks and uncertainties, including those listed under Part I, Item 1A of this Annual Report titled “Risk Factors.”

The forward-looking statements contained in this Annual Report are based on current expectations and beliefs concerning future developments and their potential effects on us. There can be no assurance that future developments affecting us will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions or important factors that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements. These risks and uncertainties include, but are not limited to, those factors described in the sections titled “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” set forth in this Annual Report. Should one or more of these risks or uncertainties materialize, or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. There may be additional risks that we consider immaterial, or which are unknown. It is not possible to predict or identify all such potential risks. We do not undertake any obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

You should read this Annual Report completely and with the understanding that our actual future results may be materially different from what we expect. We qualify all of our forward-looking statements by these cautionary statements.

This Annual Report contains summaries of certain provisions contained in some of the documents described herein, but reference is made to the actual documents for complete information. All summaries are qualified in their entirety by the actual documents. Copies of some of the documents referred to herein have been filed as exhibits to this Annual Report. Unless the context otherwise requires, reference in this Annual Report to the terms “Vistagen,” “the Company,” “we,” “us,” “our,” and similar designations refer to Vistagen Therapeutics, Inc., a Nevada corporation, and where appropriate, our consolidated subsidiaries.

This Annual Report may contain references to trademarks, trade names and service marks belonging to other entities. Solely for convenience, trademarks, trade names and service marks referred to in this Annual Report may appear without the ® or TM symbols, but such references are not intended to indicate, in any way, that the applicable licensor will not assert, to the fullest extent under applicable law, its rights to these trademarks, trade names or service marks. We do not intend our use or display of other companies’ trade names, trademarks or service marks to imply a relationship with, or endorsement or sponsorship of us by, any other companies.

In this Annual Report and from time to time we may provide estimates, projections and other information concerning our industry, the general business environment, and the markets for certain diseases or disorders, including estimates regarding the potential size of those markets and the estimated incidence and prevalence of certain medical conditions. Information that is based on estimates, forecasts, market research, projections, or similar methodologies is inherently subject to uncertainties, and actual circumstances, events or numbers, including actual disease prevalence rates and market size, may

iv differ materially from the information reflected in this Annual Report. Unless otherwise expressly stated, we obtained the industry, market and competitive position data from our internal estimates and research, or from independent market research, industry and general publications and surveys, governmental agencies and publicly available information in addition to research, surveys and studies conducted by third parties that have not been independently verified which may, in the future, prove not to have been accurate.

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