STOCK TITAN

Tenax director buys 53,000 shares at $1.92

TENAX THERAPEUTICS, INC.

(Moderate)
(Positive)
Form Type
4

Rhea-AI Filing Summary

TENAX THERAPEUTICS, INC. (TENX) director Declan Doogan reported a purchase of 53,000 shares of common stock on September 16, 2026 at $1.92 per share in an open-market or private transaction. Following this trade, he directly holds 55,274 common shares.

He also reports direct holdings of several stock options (rights to buy common stock) with exercise prices ranging from $5.75 to $3,200.00 per share and expiration dates between June 10, 2031 and January 9, 2036, covering underlying common shares in multiple option grants.

Positive

  • None.

Negative

  • None.
Insider Doogan Declan
Role Director
Bought 53,000 shs ($102K)
Type Security Shares Price Value
Purchase Common Stock 53,000 $1.92 $102K
holding Stock Option (right to buy) -- -- --
holding Stock Option (right to buy) -- -- --
holding Stock Option (right to buy) -- -- --
holding Stock Option (right to buy) -- -- --
holding Stock Option (right to buy) -- -- --
Holdings After Transaction: Common Stock — 55,274 shares (Direct); Stock Option (right to buy) — 210,008 contracts (Direct)
Common shares purchased 53,000 shares Purchase of TENAX THERAPEUTICS common stock on September 16, 2026
Purchase price per share $1.92 per share Open-market or private purchase of TENX common stock on September 16, 2026
Direct common shares after transaction 55,274 shares Direct holdings of TENAX THERAPEUTICS common stock following the reported purchase
Stock option exercise price $13.30 per share One stock option grant expiring January 9, 2036, on 30,000 underlying common shares
Stock option exercise price $5.75 per share One stock option grant expiring July 1, 2035, on 80,000 underlying common shares
Stock option exercise price $5.94 per share One stock option grant expiring December 10, 2034, on 100,000 underlying common shares
High exercise price option $3,200.00 per share Stock option expiring June 10, 2031, on 4 underlying common shares
Stock Option (right to buy) financial
"He also reports direct holdings of several stock options (right to buy common stock)"
open market or private transaction financial
"purchase of 53,000 shares of common stock at $1.92 per share in an open-market or private transaction"
underlying common shares financial
"covering underlying common shares in multiple option grants"
exercise price financial
"stock options with exercise prices ranging from $5.75 to $3,200.00 per share"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
expiration dates financial
"exercise prices ranging from $5.75 to $3,200.00 per share and expiration dates between June 10, 2031 and January 9, 2036"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did TENAX THERAPEUTICS (TENX) director Declan Doogan report?

Declan Doogan reported a purchase of 53,000 TENX common shares on September 16, 2026 in an open-market or private transaction at $1.92 per share, increasing his reported direct ownership of common stock.

How many TENX shares does Declan Doogan hold after the reported transaction?

After the September 16, 2026 transaction, Declan Doogan directly holds 55,274 shares of TENAX THERAPEUTICS common stock, according to the Form 4 filing.

At what price did Declan Doogan buy TENAX THERAPEUTICS (TENX) shares?

Declan Doogan bought TENAX THERAPEUTICS common stock at $1.92 per share in the September 16, 2026 open-market or private transaction reported on Form 4.

Were Declan Doogan’s TENX share purchases made under a Rule 10b5-1 trading plan?

The filing indicates the Rule 10b5-1 checkbox is not affirmed for this Form 4, and no footnote describes a trading plan, so the reported 53,000-share purchase is not identified as pursuant to a Rule 10b5-1 plan.

Is the reported TENX insider transaction a buy or sell?

The Form 4 shows a buy transaction: Declan Doogan purchased 53,000 TENAX THERAPEUTICS common shares, with no sales reported in this filing, resulting in a net-buy position for the reported date.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED 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
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
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*
Doogan Declan

(Last)(First)(Middle)
101 GLEN LENNOX DRIVE, SUITE 300

(Street)
CHAPEL HILL NORTH CAROLINA 27517

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
TENAX THERAPEUTICS, INC. [ TENX ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/16/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
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)
CodeVAmount(A) or (D)Price
Common Stock09/16/2026P53,000A$1.9255,274D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (right to buy)$13.301/09/202701/09/2036Common Stock30,00030,000D
Stock Option (right to buy)$5.7507/01/202607/01/2035Common Stock80,00080,000D
Stock Option (right to buy)$5.9412/10/202512/10/2034Common Stock100,000100,000D
Stock Option (right to buy)$99206/09/202306/09/2032Common Stock44D
Stock Option (right to buy)$3,20006/10/202206/10/2031Common Stock44D
Explanation of Responses:
/s/ S. Halle Vakani, as Attorney-in-Fact09/17/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

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