Buy4

TENAX THERAPEUTICS, INC.

TENX

Total Value

$101.8K

Net $101.8K bought

Filing Date

Sep 17, 2026

1 transaction

Purchases

$101.8K

1 transaction

Trade Summary

On Sep 16, 2026, Doogan Declan, Insider, purchased $101.8K of TENAX THERAPEUTICS, INC. (TENX) across 1 transaction. The filing covers Common Stock and reflects net buying of $101.8K. Reported prices ranged from $1.92. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Price at the Time of the Trade

TENX daily price with the insider's purchase marked at $1.92.

Bought near the 6-month low · the stock trades 3% lower today.

Price data is delayed and provided for context only — not investment advice.

Insider Information

Name: Doogan Declan
Role: Insider
Location: CHAPEL HILL, NC

Filing Details

Filing Date: Sep 17, 2026
Transaction Date: Sep 16, 2026
Accession Number: 0001193125-26-394831
Form Type: 4
Net Trading Amount: $101.8K

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Sep 16, 2026	Common Stock	53,000	$1.92	Purchase	$101.8K

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SEC Form 4

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

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

27517

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
TENAX THERAPEUTICS, INC. [ TENX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/16/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	09/16/2026		P		53,000	A	$1.92	55,274	D

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option (right to buy)	$13.3							01/09/2027	01/09/2036	Common Stock	30,000		30,000	D
Stock Option (right to buy)	$5.75							07/01/2026	07/01/2035	Common Stock	80,000		80,000	D
Stock Option (right to buy)	$5.94							12/10/2025	12/10/2034	Common Stock	100,000		100,000	D
Stock Option (right to buy)	$992							06/09/2023	06/09/2032	Common Stock	4		4	D
Stock Option (right to buy)	$3,200							06/10/2022	06/10/2031	Common Stock	4		4	D

Explanation of Responses:

	/s/ S. Halle Vakani, as Attorney-in-Fact	09/17/2026
	** 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.

Form 4 as rendered by the SEC from accession 0001193125-26-394831.

TENAX THERAPEUTICS, INC.

Trade Summary

Price at the Time of the Trade

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

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SEC Form 4

SEC Filing

SEC Form 4

Price at the Time of the Trade