Chief Medical Officer Rich Stuart bought $45,622 worth of shares (5,000 units at $9.12), increasing direct ownership by 940% to 2,766 units (SEC Form 4)
$TENX
Biotechnology: Pharmaceutical Preparations
Health Care
| FORM 4 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940 |
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| Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). | |||||||||||||||||
| Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10. | |||||||||||||||||
1. Name and Address of Reporting Person*
(Street)
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2. Issuer Name and Ticker or Trading Symbol
TENAX THERAPEUTICS, INC. [ TENX ] |
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
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3. Date of Earliest Transaction
(Month/Day/Year) 12/02/2025 | ||||||||||||||||||||||||||
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4. If Amendment, Date of Original Filed
(Month/Day/Year) |
6. Individual or Joint/Group Filing (Check Applicable Line)
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| Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned | ||||||||||
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| 1. Title of Security (Instr. 3) | 2. Transaction Date (Month/Day/Year) | 2A. Deemed Execution Date, if any (Month/Day/Year) | 3. Transaction Code (Instr. 8) | 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) | 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) | 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) | 7. Nature of Indirect Beneficial Ownership (Instr. 4) | |||
| Code | V | Amount | (A) or (D) | Price | ||||||
| Common Stock | 12/02/2025 | P | 1,000 | A | $9.0059(1) | 1,266 | D | |||
| Common Stock | 12/03/2025 | P | 1,500 | A | $9.0786(2) | 2,766 | D | |||
| Common Stock | 12/04/2025 | P | 2,500(3) | A | $9.1992 | 2,500 | I | By Stuart Rich Revocable Trust DTD 11/18/1996(4) | ||
| Common Stock | 1,194 | I | By Stuart Rich 2022 Irrevocable Trust(5) | |||||||
| Common Stock | 1,194 | I | By Andrea Rich 2021 Irrevocable Trust(6) | |||||||
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) | |||||||||||||||
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| 1. Title of Derivative Security (Instr. 3) | 2. Conversion or Exercise Price of Derivative Security | 3. Transaction Date (Month/Day/Year) | 3A. Deemed Execution Date, if any (Month/Day/Year) | 4. Transaction Code (Instr. 8) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) | 6. Date Exercisable and Expiration Date (Month/Day/Year) | 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) | 8. Price of Derivative Security (Instr. 5) | 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) | 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) | 11. Nature of Indirect Beneficial Ownership (Instr. 4) | ||||
| Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | ||||||||
| Stock Option (right to buy) | $2,848 | (7) | 01/15/2031 | Common Stock | 157 | 157 | D | ||||||||
| Stock Option (right to buy) | $992 | (8) | 06/09/2032 | Common Stock | 63 | 63 | D | ||||||||
| Stock Option (right to buy) | $3.549 | (9) | 05/17/2034 | Common Stock | 119 | 119 | D | ||||||||
| Stock Option (right to buy) | $5.94 | 12/10/2025 | 12/10/2034 | Common Stock | 500,000 | 500,000 | D | ||||||||
| Stock Option (right to buy) | $5.89 | (10) | 05/16/2035 | Common Stock | 625,000 | 625,000 | D | ||||||||
| Explanation of Responses: |
| 1. This transaction was executed in multiple trades at prices ranging from $8.89 to $9.06. The price reported in Column 4 is a weighted average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. |
| 2. This transaction was executed in multiple trades at prices ranging from $8.88 to $9.22. The price reported in Column 4 is a weighted average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. |
| 3. This transaction was executed in multiple trades at prices ranging from $9.00 to $9.46. The price reported in Column 4 is a weighted average price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected. |
| 4. The Reporting Person is trustee of the Stuart Rich Revocable Trust DTD 11/18/1996 and disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. |
| 5. The Reporting Person is special asset advisor to the Stuart Rich 2022 Irrevocable Trust, a Spousal Lifetime Access Trust (the "Trust"). As such, the Reporting Person has voting and dispositive power over the reported securities held in the Trust, however disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein. |
| 6. The Reporting Person is co-trustee of the Andrea Rich 2021 Irrevocable Trust and disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. |
| 7. The options vest and become exercisable in four equal installments, with 25% vesting after the start of a Phase 3 clinical trial, 25% vesting after the database lock with respect to the trial, 25% vesting after the opening of an Investigational New Drug Application with the U.S. Food and Drug Administration ("FDA"), and 25% vesting after the approval from the FDA, subject to the Reporting Person's continued employment. |
| 8. The options vest and become exercisable as follows: 25% of the underlying shares of common stock vest and become exercisable on each of June 9, 2023, June 9, 2024, June 9, 2025, and June 9, 2026, subject to the Reporting Person's continued employment. |
| 9. The options vest and become exercisable as follows: 25% of the underlying shares of common stock vest and become exercisable on each of May 17, 2025, May 17, 2026, May 17, 2027, and May 17, 2028, subject to the Reporting Person's continued employment. |
| 10. The options vest and become exercisable as follows: 25% of the underlying shares of common stock vest and become exercisable on May 16, 2026, and thereafter 1/36th of the remaining shares will vest on the last day of each following month for a period of 36 months, subject to the Reporting Person's continued employment. |
| /s/ S. Halle Vakani, as Attorney-in-Fact | 12/05/2025 | |
| ** Signature of Reporting Person | Date | |
| Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. | ||
| * If the form is filed by more than one reporting person, see Instruction 4 (b)(v). | ||
| ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). | ||
| Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. | ||
| Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number. | ||