🕵️ Tenax Therapeutics, Inc. ($TENX)
SEC insider & ownership activity, last 12 months · CIK 34956 · every row links its SEC filing
Over the last 12 months insiders bought $190K with no open-market selling against it. Rich Stuart bought $96K (Dec). Janus Henderson Group PLC added 4.0% → 10.0%. No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
4 buyers, $190K (13 lots) · 0 sellers, $0 (0 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Rich Stuart | 5 | $96K | 0 | – | Dec 9, 2025 |
| McGauley Thomas | 3 | $58K | 0 | – | Nov 17, 2025 |
| Christopher Thomas Giordano | 3 | $20K | 0 | – | Nov 20, 2025 |
| Almenoff June Sherie | 2 | $15K | 0 | – | Nov 18, 2025 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| FMR LLC | 14.9% | 13G | Jul 8, 2026 | filing ↗ | |
| Abigail P. Johnson | 14.9% | 13G | Jul 8, 2026 | filing ↗ | |
| Janus Henderson Group PLC | 10.0% | 13G | Dec 8, 2025 | filing ↗ | |
| Roderick WONG, M.D. | 10.0% | 13G | May 15, 2025 | filing ↗ | |
| BVF Partners L P/IL | 10.0% | 13G | May 15, 2026 | filing ↗ | |
| BVF INC/IL | 10.0% | 13G | May 15, 2026 | filing ↗ | |
| Mark N. Lampert | 10.0% | 13G | May 15, 2026 | filing ↗ | |
| BVF GP Holdings LLC | 10.0% | 13G | May 15, 2026 | filing ↗ | |
| Venrock Healthcare Capital Partners III, L.P. | 9.9% | 13G | May 15, 2026 | filing ↗ | |
| VHCP Co-Investment Holdings III, LLC | 9.9% | 13G | May 15, 2026 | filing ↗ | |
| Venrock Healthcare Capital Partners EG, L.P. | 9.9% | 13G | May 15, 2026 | filing ↗ | |
| VHCP Management III, LLC | 9.9% | 13G | May 15, 2026 | filing ↗ | |
| VHCP Management EG, LLC | 9.9% | 13G | May 15, 2026 | filing ↗ | |
| Nimish Shah | 9.9% | 13G | May 15, 2026 | filing ↗ | |
| Bong Y. Koh | 9.9% | 13G | May 15, 2026 | filing ↗ | |
| RTW Investments, LP | 9.9% | 13G | May 15, 2026 | filing ↗ | |
| Roderick Wong | 9.9% | 13G | May 15, 2026 | filing ↗ | |
| Bong Y Koh | 9.9% | 13G | May 15, 2025 | filing ↗ | |
| Janus Henderson Biotech Innovation Master Fund Ltd | 9.9% | 13G | May 14, 2025 | filing ↗ | |
| Vestal Point Capital, LP | 9.9% | 13G | Nov 14, 2025 | filing ↗ | |
| Ryan Wilder | 9.9% | 13G | Nov 14, 2025 | filing ↗ | |
| Biotechnology Value Fund L P | 9.2% | 13G | May 15, 2026 | filing ↗ | |
| BVF I GP LLC | 9.2% | 13G | May 15, 2026 | filing ↗ | |
| Christopher Thomas Giordano | 6.8% | 13D | Dec 10, 2025 | filing ↗ | |
| Ikarian Capital, LLC | 6.7% | 13G | Apr 7, 2026 | filing ↗ | |
| Neil Shahrestani | 6.7% | 13G | Apr 7, 2026 | filing ↗ | |
| Perceptive Advisors LLC | 5.5% | 13G | May 15, 2026 | filing ↗ | |
| Joseph Edelman | 5.5% | 13G | May 15, 2026 | filing ↗ | |
| Perceptive Life Sciences Master Fund, Ltd. | 5.5% | 13G | May 15, 2026 | filing ↗ | |
| Millennium Management LLC | exited | 13G | Jul 17, 2026 | filing ↗ | |
| Millennium Group Management LLC | exited | 13G | Jul 17, 2026 | filing ↗ | |
| Israel A. Englander | exited | 13G | Jul 17, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | Jul 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 2, 2026 | filing ↗ |
| Material agreement (1.01) | Jun 29, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 29, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jun 26, 2026 | filing ↗ |
| Other events (8.01) | Jun 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 26, 2026 | filing ↗ |
| Shareholder vote (5.07) | Jun 2, 2026 | filing ↗ |
| Earnings (2.02) | May 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 12, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 22, 2026 | filing ↗ |
| Other events (8.01) | Apr 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 22, 2026 | filing ↗ |
| Earnings (2.02) | Mar 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 10, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 6, 2026 | filing ↗ |
| Other events (8.01) | Dec 17, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 17, 2025 | filing ↗ |
| Earnings (2.02) | Nov 12, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 12, 2025 | filing ↗ |
| Other events (8.01) | Sep 16, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 16, 2025 | filing ↗ |
| Material agreement (1.01) | Sep 3, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 3, 2025 | filing ↗ |
| Earnings (2.02) | Aug 13, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 13, 2025 | filing ↗ |