Tenax Therapeutics, Inc.
TENX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0000034956
In the last 90 days, Tenax Therapeutics, Inc. insiders filed 7 open-market purchases and 0 sales; 111 institutions reported holding it in 13F filings for Q2 2026, worth $441.4M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Tenax Therapeutics, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 7 filings
- 4 insiders, $6.40M in total
- Open-market sells
- 0 filings
- Insiders trading
- 4
- Net value
- +$6.40M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Tenax Therapeutics, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Schneeberger Daniel | 10% Owner | 7,447,000Indirect | Oct 21, 2026 | 4 |
| ADAR1 Capital Management, LLC | 10% Owner | 7,447,000Indirect | Oct 21, 2026 | 4 |
| Doogan Declan | Director | 55,274 | Sep 17, 2026 | 2 |
| Giordano Christopher Thomas | CEO | 22,174 | Sep 15, 2026 | 4 |
| Staab Thomas R II | Chief Financial Officer | 15,675 | Sep 15, 2026 | 2 |
| McGauley Thomas | Interim CFO | 5,000Indirect | Feb 3, 2026 | 2 |
| Proehl Gerald T | Director | 1,667 | Jan 13, 2026 | 1 |
| Almenoff June Sherie | Director | 1,993Indirect | Jan 13, 2026 | 2 |
| Davidson Michael H. | Director | 2,881 | Jan 13, 2026 | 1 |
| Hunter Robyn | Director | – | Jan 13, 2026 | 1 |
| Rich Stuart | Chief Medical Officer | 5,266 | Jan 13, 2026 | 3 |
| Dellora Investments LP | Other: no longer 10% owner | – | Mar 12, 2025 | 0 |
| Armistice Capital, LLC | Director | – | May 19, 2022 | 0 |
| Armistice Capital Master Fund Ltd. | Director, 10% Owner | – | May 19, 2022 | 0 |
| Boyd Steven | Director, 10% Owner | – | May 19, 2022 | 0 |
| DiTonno Anthony A | CEO | – | Jul 8, 2021 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Oct 21, 2026 (view filing)4:49 PM ET | Oct 19-21 | 2 days | Schneeberger Daniel and 1 other10% Owner | PPurchase | +922.8K | $1.59 | +$1.46M | +14.1%7.45M after | 3 lots |
| Sep 17, 2026 (view filing)9:30 PM ET | Sep 16 | 1 day | Doogan DeclanDirector | PPurchase | +53.0K | $1.92 | +$101.8K | +2,330.7%55.3K after | |
| Sep 15, 2026 (view filing)9:38 PM ET | Sep 11-15 | 4 days | Giordano Christopher ThomasCEO | PPurchase | +10.8K | $1.85 | +$20.1K | +95.8%22.2K after | 2 lots |
| Sep 15, 2026 (view filing)9:30 PM ET | Sep 11 | 4 days | Staab Thomas R IIChief Financial Officer | PPurchase | +5.67K | $1.94 | +$11.0K | +56.8%15.7K after | |
| Sep 8, 2026 (view filing)5:16 PM ET | Sep 3 | 5 days | Schneeberger Daniel and 1 other10% Owner | PPurchase | +900.0K | $1.78 | +$1.60M | +16.0%6.52M after | |
| Sep 2, 2026 (view filing)5:52 PM ET | Aug 31-Sep 2 | 2 days | Schneeberger Daniel and 1 other10% Owner | PPurchase | +770.3K | $1.79 | +$1.38M | +15.9%5.62M after | 3 lots |
| Aug 24, 2026 (view filing)6:12 PM ET | Aug 20-24 | 4 days | Schneeberger Daniel and 1 other10% Owner | PPurchase | +1.03M | $1.77 | +$1.81M | +26.8%4.85M after | 3 lots |
| Dec 10, 2025 (view filing) | Dec 8 | 2 days | Rich StuartChief Medical Officer | PPurchase | +2.50K | $10.10 | +$25.3K | +100.0%5.00K after | |
| Dec 10, 2025 (view filing) | Dec 9 | 1 day | Rich StuartChief Medical Officer | PPurchase | +2.50K | $10.22 | +$25.6K | +90.4%5.27K after | |
| Dec 5, 2025 (view filing) | Dec 2-3 | 3 daysLate | Rich StuartChief Medical Officer | PPurchase | +2.50K | $9.05 | +$22.6K | +939.8%2.77K after | 2 lots |
| Dec 5, 2025 (view filing) | Dec 4 | 1 day | Rich StuartChief Medical Officer | PPurchase | +2.50K | $9.20 | +$23.0K | New position2.50K after | |
| Nov 20, 2025 (view filing) | Nov 18-20 | 2 days | Giordano Christopher ThomasCEO | PPurchase | +2.60K | $7.68 | +$20.0K | New position2.60K after | 3 lots |
| Nov 20, 2025 (view filing) | Nov 17-18 | 3 days | Almenoff June SherieDirector | PPurchase | +1.99K | $7.50 | +$15.0K | New position1.99K after | Amended2 lots |
| Nov 19, 2025 (view filing) | Nov 17 | 2 days | McGauley ThomasInterim CFO | PPurchase | +2.00K | $7.34 | +$14.7K | New position2.00K after | |
| Nov 19, 2025 (view filing) | Nov 17 | 2 days | McGauley ThomasInterim CFO | PPurchase | +6.00K | $7.25 | +$43.5K | New position5.00K after | 2 lots |
| Aug 8, 2024 (view filing) | Aug 8 | Same day | Proehl Gerald TDirector | PPurchase | +1.67K | – | – | +166,600.0%1.67K after | |
| Aug 8, 2024 (view filing) | Aug 8 | Same day | Proehl Gerald TDirector | PPurchase | +48.3K | – | – | –16.7K after | Derivative2 lots |
| Aug 8, 2024 (view filing) | Aug 8 | Same day | Davidson Michael H.Director | PPurchase | +2.50K | – | – | +656.2%2.88K after | |
| Aug 8, 2024 (view filing) | Aug 8 | Same day | Davidson Michael H.Director | PPurchase | +72.5K | – | – | –25.0K after | Derivative2 lots |