Over the 90-day window ending February 07, 2026, Taysha Gene Therapies's three dominant insider ownership positions are held by TenPercentOwner R.A. Ii Session (8.87Mn shares), Chief Executive Officer Sean P. Nolan (4.44Mn shares), TenPercentOwner Paul B Manning (4.18Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| R.A. Ii Session | 8,871,747 | 14 Jul, 2023 | |
| Sean P. Nolan | Chief Executive Officer | 4,443,802 | 27 Jan, 2026 |
| Paul B Manning | 4,175,037 | 01 Jul, 2024 | |
| John A Iii Stalfort | 2,039,514 | 04 Jun, 2025 | |
| Kamran Alam | Chief Financial Officer | 1,442,131 | 06 Feb, 2026 |
| Sukumar Nagendran | President And Head Of R&D | 1,317,389 | 27 Jan, 2026 |
| Suyash Prasad | Cmo And Head Of R&D | 530,589 | 07 Jul, 2022 |
| Phillip B. Donenberg | 219,954 | 04 Jun, 2025 | |
| Laura Sepp-Lorenzino | 105,843 | 04 Jun, 2025 | |
| Alison S Long | 105,843 | 04 Jun, 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 |
|---|---|---|---|---|---|---|---|---|
| 04 Feb, 2026 | Kamran Alam | Common Stock | D | 1,655 | $4.52 | 1,442,131 | D | S |
| 26 Jan, 2026 | Sean P. Nolan | Common Stock | D | 41,312 | $4.61 | 2,908,257 | D | S |
| 26 Jan, 2026 | Sukumar Nagendran | Common Stock | D | 26,918 | $4.61 | 1,317,389 | D | S |
| 26 Jan, 2026 | Kamran Alam | Common Stock | D | 23,849 | $4.61 | 1,443,786 | D | S |
| 23 Jan, 2026 | Sean P. Nolan | Common Stock | D | 136,789 | $4.75 | 2,949,569 | D | S |
| 23 Jan, 2026 | Sukumar Nagendran | Common Stock | D | 89,132 | $4.75 | 1,344,307 | D | S |
| 23 Jan, 2026 | Kamran Alam | Common Stock | D | 78,968 | $4.75 | 1,467,635 | D | S |
| 12 Jan, 2026 | Sean P. Nolan | Common Stock | A | 1,008,000 | $0.00 | 3,086,358 | D | A |
| 12 Jan, 2026 | Sukumar Nagendran | Common Stock | A | 111,324 | $0.70 | 1,117,763 | D | M |
| 12 Jan, 2026 | Sukumar Nagendran | Common Stock | A | 427,000 | $0.00 | 1,433,439 | D | A |
| 12 Jan, 2026 | Sukumar Nagendran | Common Stock | D | 200,000 | $4.71 | 1,006,439 | D | S |
| 12 Jan, 2026 | Sukumar Nagendran | Common Stock | A | 88,676 | $1.71 | 1,206,439 | D | M |
| 12 Jan, 2026 | Kamran Alam | Common Stock | A | 359,000 | $0.00 | 1,546,603 | D | A |
| 01 Dec, 2025 | Sukumar Nagendran | Common Stock | D | 260,047 | $4.51 | 1,006,439 | D | S |
| 01 Dec, 2025 | Sukumar Nagendran | Common Stock | A | 260,047 | $1.71 | 1,266,486 | D | M |
| 28 Nov, 2025 | Sukumar Nagendran | Common Stock | A | 70,172 | $0.70 | 1,076,611 | D | M |
| 28 Nov, 2025 | Sukumar Nagendran | Common Stock | D | 110,125 | $4.75 | 1,006,439 | D | S |
| 28 Nov, 2025 | Sukumar Nagendran | Common Stock | A | 39,953 | $1.71 | 1,116,564 | D | M |
| 10 Sep, 2025 | Sukumar Nagendran | Common Stock | D | 200,000 | $3.23 | 1,006,439 | D | S |
| 10 Sep, 2025 | Sukumar Nagendran | Common Stock | A | 41,150 | $0.70 | 1,206,439 | D | M |