According to recent filings covering the 90 days ending February 19, 2026, the three most significant insider holders at Tg Therapeutics are Ceo Michael S Weiss (9.78Mn shares), Cfo Sean A Power (798.11K shares), Director Kenneth Hoberman (279.65K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Michael S Weiss | Ceo | 9,778,086 | 09 Jan, 2026 |
| Sean A Power | Cfo | 798,111 | 09 Jan, 2026 |
| Kenneth Hoberman | 279,653 | 16 Jun, 2025 | |
| Yann Echelard | 223,816 | 25 Nov, 2025 | |
| Daniel Hume | 192,748 | 16 Jun, 2025 | |
| Laurence N Charney | 179,690 | 29 Jan, 2026 | |
| Sagar Lonial | 94,061 | 12 Sep, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 29 Jan, 2026 | Laurence N Charney | Common Stock | D | 13,197 | $0.00 | 179,690 | D | G |
| 28 Jan, 2026 | Laurence N Charney | Common Stock | D | 30,000 | $0.00 | 192,887 | D | G |
| 08 Jan, 2026 | Michael S Weiss | Common Stock | A | 622,000 | $0.00 | 9,778,086 | D | A |
| 08 Jan, 2026 | Sean A Power | Common Stock | A | 90,000 | $0.00 | 798,111 | D | A |
| 24 Nov, 2025 | Yann Echelard | - | - | 223,816 | D | |||
| 24 Nov, 2025 | Yann Echelard | Common Stock | D | 5,000 | $32.57 | 223,816 | D | S |
| 05 Nov, 2025 | Michael S Weiss | Common Stock | D | 3,865,126 | $0.00 | 9,959,803 | D | G |
| 05 Nov, 2025 | Michael S Weiss | Common Stock | D | 803,717 | $0.00 | 9,156,086 | D | G |
| 11 Sep, 2025 | Sagar Lonial | Common Stock | D | 20,852 | $32.24 | 94,061 | D | S |
| 11 Sep, 2025 | Sagar Lonial | - | - | 94,061 | D | |||
| 13 Jun, 2025 | Yann Echelard | Common Stock | D | 10,000 | $36.94 | 228,816 | D | S |
| 13 Jun, 2025 | Yann Echelard | - | - | 228,816 | D | |||
| 12 Jun, 2025 | Laurence N Charney | Common Stock | A | 21,408 | $0.00 | 222,887 | D | A |
| 12 Jun, 2025 | Yann Echelard | Common Stock | A | 14,718 | $0.00 | 238,816 | D | A |
| 12 Jun, 2025 | Kenneth Hoberman | Common Stock | A | 14,718 | $0.00 | 279,653 | D | A |
| 12 Jun, 2025 | Daniel Hume | - | - | 192,748 | D | |||
| 12 Jun, 2025 | Daniel Hume | Common Stock | A | 14,718 | $0.00 | 192,748 | D | A |
| 12 Jun, 2025 | Sagar Lonial | Common Stock | A | 14,718 | $0.00 | 114,913 | D | A |
| 17 Mar, 2025 | Daniel Hume | Common Stock | D | 62,459 | $0.00 | 178,030 | D | G |
| 10 Mar, 2025 | Laurence N Charney | Common Stock | D | 6,000 | $0.00 | 201,479 | D | G |