RICH STUART

PrivateCIK: 1841785
Location

MORRISVILLE, NC

RICH STUART (Chief Medical Officer) purchased 5K shares of TENAX THERAPEUTICS, INC. on the open market

Open‑market purchase worth $45.6K. The strongest form of insider conviction signal.

P · 3 purchases
InsiderRICH STUARTCIK 1841785
Officer· Chief Medical Officer
Since Jan 2021
+5K
Net shares
Net buyer
$45.6K
Total acquired
3
Open market trades
3B · 0S
3
Total transactions
5K acquired
Non-Derivative Transactions3

Common Stock

Direct
P · Purchase

Shares

+1K

Price / share

$9.01

Trade value

$9.01K

% of position

375.9%
12/2/2025
266.001.27K

Common Stock

Direct
P · Purchase

Shares

+1.50K

Price / share

$9.08

Trade value

$13.62K

% of position

118.5%
12/3/2025
1.27K2.77K

Common Stock

Indirect
P · Purchase

Shares

+2.50K

Price / share

$9.20

Trade value

$23K

% of position

New position
12/4/2025
0.002.50K
Total

Net shares

+5K

Net value

$45.62K

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)2

Common Stock

Indirect
Shares owned1.19K

Common Stock

Indirect
Shares owned1.19K
Total
2.39K indirect2.39K
Derivative Holdings (Post-Transaction)5

Stock Option (right to buy)

Direct
Underlying security
Common Stock

Underlying shares

63.00

Shares owned

63.00

Exercise price

992

Expiration

Exercise window

Stock Option (right to buy)

Direct
Underlying security
Common Stock

Underlying shares

157.00

Shares owned

157.00

Exercise price

2848

Expiration

Exercise window

Stock Option (right to buy)

Direct
Underlying security
Common Stock

Underlying shares

500K

Shares owned

500K

Exercise price

5.94

Expiration

Exercise window

Stock Option (right to buy)

Direct
Underlying security
Common Stock

Underlying shares

119.00

Shares owned

119.00

Exercise price

3.549

Expiration

Exercise window

Stock Option (right to buy)

Direct
Underlying security
Common Stock

Underlying shares

625K

Shares owned

625K

Exercise price

5.89

Expiration

Exercise window

Total

Underlying

1.13M

Owned

1.13M

RICH STUART — Insider Transaction (Form 4) Filed Dec 5, 2025 | Finecho