| Insiders | Shares | % | Avg Price | Total $ | |
|---|---|---|---|---|---|
| Buys | 1 | +750,000 | 37% | $2.75 | +$2,062,500 |
| Sells | 3 | -1,280,340 | 63% | $4.28 | -$5,481,997 |
| Net | -2 | -530,340 | -26% | -$3,419,497 |
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Report Date |
|---|---|---|---|---|---|
| Sean P. Nolan | Chief Executive Officer, Director | $21,852,561 | -$840,196 | -3.7% | 23 Jan 2026 |
| R.a. Session II | 10%+ Owner | $14,690,925 | 12 Jul 2023 | ||
| Audentes Therapeutics, Inc. | 10%+ Owner | $11,844,137 | 21 Oct 2022 | ||
| Paul B. Manning | 10%+ Owner | $7,814,686 | +$2,062,500 | +36% | 30 May 2025 |
| Kamran Alam | Chief Financial Officer | $6,518,432 | -$647,822 | -9% | 04 Feb 2026 |
| Sukumar Nagendran | President and Head of R&D, Director | $6,073,163 | -$3,993,979 | -40% | 23 Jan 2026 |
| John A. Stalfort III | Director | $4,731,671 | 02 Jun 2025 | ||
| Suyash Prasad | CMO and Head of R&D | $864,860 | 05 Jul 2022 | ||
| Phillip B. Donenberg | Director | $510,293 | 02 Jun 2025 | ||
| Laura Sepp-Lorenzino | Director | $245,555 | 02 Jun 2025 | ||
| Alison S. Long | Director | $245,555 | 02 Jun 2025 | ||
| Kathleen Reape | Director | 22 Jun 2023 |
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Kamran Alam | TSHA | Common Stock | Sale | -0.11% | $7,481 | $4.52 | -1,655 | 1,442,131 | 04 Feb 2026 | Direct |
| Kamran Alam | TSHA | Common Stock | Sale | -1.62% | $109,944 | $4.61 | -23,849 | 1,443,786 | 26 Jan 2026 | Direct |
| Sukumar Nagendran | TSHA | Common Stock | Sale | -2% | $124,092 | $4.61 | -26,918 | 1,317,389 | 26 Jan 2026 | Direct |
| Sean P. Nolan | TSHA | Common Stock | Sale | -1.4% | $190,448 | $4.61 | -41,312 | 2,908,257 | 26 Jan 2026 | Direct |
| Kamran Alam | TSHA | Common Stock | Sale | -5.11% | $375,098 | $4.75 | -78,968 | 1,467,635 | 23 Jan 2026 | Direct |
| Sukumar Nagendran | TSHA | Common Stock | Sale | -6.22% | $423,377 | $4.75 | -89,132 | 1,344,307 | 23 Jan 2026 | Direct |
| Sean P. Nolan | TSHA | Common Stock | Sale | -4.43% | $649,748 | $4.75 | -136,789 | 2,949,569 | 23 Jan 2026 | Direct |
| Kamran Alam | TSHA | Common Stock | Award | 30.2% | 359,000 | 1,546,603 | 12 Jan 2026 | Direct | ||
| Kamran Alam | TSHA | Employee Stock Option (right to buy) | Award | 231,000 | 231,000 | 12 Jan 2026 | Direct | |||
| Sean P. Nolan | TSHA | Common Stock | Award | 48.5% | 1,008,000 | 3,086,358 | 12 Jan 2026 | Direct | ||
| Sean P. Nolan | TSHA | Employee Stock Option (right to buy) | Award | 648,000 | 648,000 | 12 Jan 2026 | Direct | |||
| Sukumar Nagendran | TSHA | Common Stock | Award | 42.4% | 427,000 | 1,433,439 | 12 Jan 2026 | Direct | ||
| Sukumar Nagendran | TSHA | Common Stock | Sale | -16.6% | $942,000 | $4.71 | -200,000 | 1,006,439 | 12 Jan 2026 | Direct |
| Sukumar Nagendran | TSHA | Common Stock | Options Exercise | 19.9% | 200,000 | 1,206,439 | 12 Jan 2026 | Direct | ||
| Sukumar Nagendran | TSHA | Employee Stock Option (right to buy) | Award | 274,000 | 274,000 | 12 Jan 2026 | Direct | |||
| Sukumar Nagendran | TSHA | Employee Stock Option (right to buy) | Options Exercise | -64.2% | -200,000 | 111,359 | 12 Jan 2026 | Direct | ||
| Sukumar Nagendran | TSHA | Common Stock | Sale | -20.5% | $1,172,812 | $4.51 | -260,047 | 1,006,439 | 01 Dec 2025 | Direct |
| Sukumar Nagendran | TSHA | Common Stock | Options Exercise | 25.8% | 260,047 | 1,266,486 | 01 Dec 2025 | Direct | ||
| Sukumar Nagendran | TSHA | Employee Stock Option (right to buy) | Options Exercise | -31.6% | -260,047 | 563,617 | 01 Dec 2025 | Direct | ||
| Sukumar Nagendran | TSHA | Common Stock | Sale | -9.86% | $523,094 | $4.75 | -110,125 | 1,006,439 | 28 Nov 2025 | Direct |
| Sukumar Nagendran | TSHA | Common Stock | Options Exercise | 10.9% | 110,125 | 1,116,564 | 28 Nov 2025 | Direct | ||
| Sukumar Nagendran | TSHA | Employee Stock Option (right to buy) | Options Exercise | -33.1% | -110,125 | 222,683 | 28 Nov 2025 | Direct | ||
| Sukumar Nagendran | TSHA | Common Stock | Sale | -16.6% | $646,000 | $3.23 | -200,000 | 1,006,439 | 10 Sep 2025 | Direct |
| Sukumar Nagendran | TSHA | Common Stock | Options Exercise | 3.53% | 41,150 | 1,206,439 | 10 Sep 2025 | Direct | ||
| Sukumar Nagendran | TSHA | Employee Stock Option (right to buy) | Options Exercise | -12.3% | -41,150 | 292,855 | 10 Sep 2025 | Direct | ||
| Sukumar Nagendran | TSHA | Common Stock | Sale | -4.67% | $162,604 | $2.85 | -57,054 | 1,165,289 | 21 Aug 2025 | Direct |
| Kamran Alam | TSHA | Common Stock | Sale | -4.39% | $155,299 | $2.85 | -54,491 | 1,187,603 | 21 Aug 2025 | Direct |
| John A. Stalfort III | TSHA | Common Stock | Award | 5.15% | 56,623 | 1,155,224 | 02 Jun 2025 | Direct | ||
| John A. Stalfort III | TSHA | Stock Option (right to buy) | Award | 113,246 | 113,246 | 02 Jun 2025 | Direct | |||
| Phillip B. Donenberg | TSHA | Common Stock | Award | 34.7% | 56,623 | 219,954 | 02 Jun 2025 | Direct | ||
| Phillip B. Donenberg | TSHA | Stock Option (right to buy) | Award | 113,246 | 113,246 | 02 Jun 2025 | Direct | |||
| Alison S. Long | TSHA | Common Stock | Award | 115% | 56,623 | 105,843 | 02 Jun 2025 | Direct | ||
| Alison S. Long | TSHA | Stock Option (right to buy) | Award | 113,246 | 113,246 | 02 Jun 2025 | Direct | |||
| Laura Sepp-Lorenzino | TSHA | Common Stock | Award | 115% | 56,623 | 105,843 | 02 Jun 2025 | Direct | ||
| Laura Sepp-Lorenzino | TSHA | Stock Option (right to buy) | Award | 113,246 | 113,246 | 02 Jun 2025 | Direct | |||
| Paul B. Manning | TSHA | Common Stock | Purchase | 35.9% | $2,062,500 | $2.75 | 750,000 | 2,841,704 | 30 May 2025 | See footnote |