Taysha Gene Therapies, Inc. (TSHA) Insider Ownership

Historic Ownership Trends

There are no significant Insider Shareholders in Taysha Gene Therapies as of December 12, 2025.

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
R.A. Ii Session 8,871,747 14 Jul, 2023
Paul B Manning 4,175,037 01 Jul, 2024
Sean P. Nolan Chief Executive Officer 3,613,903 03 Jan, 2025
John A Iii Stalfort 2,039,514 04 Jun, 2025
Kamran Alam Chief Financial Officer 1,187,603 22 Aug, 2025
Sukumar Nagendran President And Head Of R&D 1,006,439 01 Dec, 2025
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
28 Nov, 2025 Sukumar Nagendran Common Stock A 70,172 $0.70 1,076,611 D M
28 Nov, 2025 Sukumar Nagendran Common Stock A 39,953 $1.71 1,116,564 D M
28 Nov, 2025 Sukumar Nagendran Common Stock D 110,125 $4.75 1,006,439 D S
01 Dec, 2025 Sukumar Nagendran Common Stock A 260,047 $1.71 1,266,486 D M
01 Dec, 2025 Sukumar Nagendran Common Stock D 260,047 $4.51 1,006,439 D S
10 Sep, 2025 Sukumar Nagendran Common Stock A 41,150 $0.70 1,206,439 D M
10 Sep, 2025 Sukumar Nagendran Common Stock D 200,000 $3.23 1,006,439 D S
21 Aug, 2025 Sukumar Nagendran Common Stock D 57,054 $2.85 1,165,289 D S
21 Aug, 2025 Kamran Alam - - 1,187,603 D
21 Aug, 2025 Kamran Alam Common Stock D 54,491 $2.85 1,187,603 D S
02 Jun, 2025 John A Iii Stalfort Common Stock A 56,623 $0.00 1,155,224 D A
02 Jun, 2025 Alison S Long Common Stock A 56,623 $0.00 105,843 D A
02 Jun, 2025 Laura Sepp-Lorenzino Common Stock A 56,623 $0.00 105,843 D A
02 Jun, 2025 Phillip B. Donenberg Common Stock A 56,623 $0.00 219,954 D A
02 Jun, 2025 John A Iii Stalfort - - 1,155,224 D
30 May, 2025 Paul B Manning - - 2,841,704 I
30 May, 2025 Paul B Manning Common Stock A 750,000 $2.75 2,841,704 I P
11 Mar, 2025 Kamran Alam Common Stock D 29,843 $1.69 1,242,094 D F
02 Jan, 2025 Sean P. Nolan Common Stock A 892,500 $0.00 2,078,358 D A
02 Jan, 2025 Kamran Alam Common Stock A 431,000 $0.00 1,271,937 D A