As of September 09, 2026, the three largest insider holders of TENX are Capital Management, Llc Adar1 (TenPercentOwner, 6.52Mn shares), Christopher Thomas Giordano (Ceo, 11.32K shares), Stuart Rich (Chief Medical Officer, 10.27K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Capital Management, Llc Adar1 | TenPercentOwner | 0 | 6,524,151 | 6,524,151 | 99.3% | 08 Sep, 2026 |
| 2 | Christopher Thomas Giordano | Ceo | 11,324 | 0 | 11,324 | 0.2% | 14 Jul, 2026 |
| 3 | Stuart Rich | Chief Medical Officer | 5,266 | 5,000 | 10,266 | 0.2% | 10 Dec, 2025 |
| 4 | Thomas R Ii Staab | Chief Financial Officer | 10,000 | 0 | 10,000 | 0.2% | 13 May, 2026 |
| 5 | Thomas Mcgauley | Interim Cfo | 2,000 | 6,000 | 8,000 | 0.1% | 19 Nov, 2025 |
| 6 | Michael H. Davidson | Director | 2,881 | 0 | 2,881 | 0.0% | 08 Aug, 2024 |
| 7 | June Sherie Almenoff | Director | 0 | 1,993 | 1,993 | 0.0% | 20 Nov, 2025 |
| 8 | Gerald T Proehl | Director | 1,667 | 0 | 1,667 | 0.0% | 08 Aug, 2024 |
| 9 | Declan Doogan | Director, TenPercentOwner | 30 | 0 | 30 | 0.0% | 12 Aug, 2022 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 03 Sep, 2026 | Capital Management, Llc Adar1 | TenPercentOwner | Acquired P | 900,000 | $1.78 | $1.60Mn | 6,524,151 | Indirect |
| 13 Jul, 2026 | Christopher Thomas Giordano | Ceo | Acquired M | 219 | $3.55 | $777 | 2,824 | Direct |
| 13 Jul, 2026 | Christopher Thomas Giordano | Ceo | Acquired M | 8,500 | $5.94 | $50.49K | 11,324 | Direct |
| 13 Jul, 2026 | Christopher Thomas Giordano | Ceo | Disposed M | 219 | $0.00 | $0 | 218 | Direct |
| 13 Jul, 2026 | Christopher Thomas Giordano | Ceo | Disposed M | 8,500 | $0.00 | $0 | 1,241,500 | Direct |
| 11 May, 2026 | Thomas R Ii Staab | Chief Financial Officer | Acquired A | 10,000 | $0.00 | $0 | 10,000 | Direct |
| 11 May, 2026 | Thomas R Ii Staab | Chief Financial Officer | Acquired A | 450,000 | $0.00 | $0 | 450,000 | Direct |
| 30 Jan, 2026 | Thomas Mcgauley | Interim Cfo | Acquired M | 50,000 | $0.00 | $0 | 50,000 | Direct |
| 09 Jan, 2026 | Robyn Hunter | Director | Acquired A | 30,000 | $0.00 | $0 | 30,000 | Direct |
| 09 Jan, 2026 | Michael H. Davidson | Director | Acquired A | 30,000 | $0.00 | $0 | 30,000 | Direct |
| 09 Jan, 2026 | Declan Doogan | Director | Acquired A | 30,000 | $0.00 | $0 | 30,000 | Direct |
| 09 Jan, 2026 | Gerald T Proehl | Director | Acquired A | 3,000 | $0.00 | $0 | 30,000 | Direct |
| 09 Jan, 2026 | June Sherie Almenoff | Director | Acquired A | 30,000 | $0.00 | $0 | 30,000 | Direct |
| 09 Jan, 2026 | Christopher Thomas Giordano | Ceo | Acquired A | 450,000 | $0.00 | $0 | 450,000 | Direct |
| 09 Jan, 2026 | Stuart Rich | Chief Medical Officer | Acquired A | 250,000 | $0.00 | $0 | 250,000 | Direct |
| 08 Dec, 2025 | Stuart Rich | Chief Medical Officer | Acquired P | 2,500 | $10.10 | $25.25K | 5,000 | Indirect |
| 09 Dec, 2025 | Stuart Rich | Chief Medical Officer | Acquired P | 2,500 | $10.22 | $25.54K | 5,266 | Direct |
| 02 Dec, 2025 | Stuart Rich | Chief Medical Officer | Acquired P | 1,000 | $9.01 | $9.01K | 1,266 | Direct |
| 03 Dec, 2025 | Stuart Rich | Chief Medical Officer | Acquired P | 1,500 | $9.08 | $13.62K | 2,766 | Direct |
| 04 Dec, 2025 | Stuart Rich | Chief Medical Officer | Acquired P | 2,500 | $9.20 | $23.00K | 2,500 | Indirect |