TSHA
TAYSHA GENE THER (TSHA)
NASDAQ
$6.95+$0.42 (+6.46%)
Price as of Jun 23, 2026 4:47 PM EDT
  • $1.9B
    Market Cap
  • 162.25%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
RA CAPITAL MANAGEMENT, L.P.
8.20%
23.6M
0 (0.00%)
Mar 31, 2026
GOLDMAN SACHS GROUP INC
7.79%
22.4M
+8.7M (+38.79%)
Mar 31, 2026
AVORO CAPITAL ADVISORS LLC
7.55%
21.7M
0 (0.00%)
Mar 31, 2026
BLACKROCK, INC.
6.39%
18.4M
-277,521 (-1.51%)
Mar 31, 2026
VESTAL POINT CAPITAL, LP
6.26%
18.0M
+4.3M (+23.61%)
Mar 31, 2026
MORGAN STANLEY
6.25%
18.0M
-113,147 (-0.63%)
Mar 31, 2026
FMR LLC
4.98%
14.3M
+792,889 (+5.54%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions2.2B (86.14%)
  • Mutual Funds328.7M (12.81%)
  • Insiders26.9M (1.05%)
  • Other0 (0.00%)

Insider Transactions

  • 1.05% (26.9M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 3
    Number of InsiderSelling (last 12 months)
  • $67.7M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Alam Kamran
CHIEF FINANCIAL OFFICER
Sell
Feb 04, 2026
$7,480.60
1,655
$4.52
1.4M
Alam Kamran
CHIEF FINANCIAL OFFICER
Sell
Jan 26, 2026
$109,943.89
23,849
$4.61
1.4M
Nagendran Sukumar
President and Head of R&D
Sell
Jan 26, 2026
$124,091.98
26,918
$4.61
1.3M
Nolan Sean P.
Chief Executive Officer
Sell
Jan 26, 2026
$190,448.32
41,312
$4.61
2.9M
Alam Kamran
CHIEF FINANCIAL OFFICER
Sell
Jan 23, 2026
$375,098.00
78,968
$4.75
1.5M
Nagendran Sukumar
President and Head of R&D
Sell
Jan 23, 2026
$423,377.00
89,132
$4.75
1.3M
Nolan Sean P.
Chief Executive Officer
Sell
Jan 23, 2026
$649,747.75
136,789
$4.75
2.9M
Nagendran Sukumar
President and Head of R&D
Exempt
Jan 12, 2026
$0.00
111,324
$0.00
111,359
Nolan Sean P.
Chief Executive Officer
Award
Jan 12, 2026
$0.00
648,000
$0.00
648,000
Nagendran Sukumar
President and Head of R&D
Exempt
Jan 12, 2026
$0.00
88,676
$0.00
474,941
Alam Kamran
CHIEF FINANCIAL OFFICER
Award
Jan 12, 2026
$0.00
231,000
$0.00
231,000
Nagendran Sukumar
President and Head of R&D
Award
Jan 12, 2026
$0.00
274,000
$0.00
274,000
Nolan Sean P.
Chief Executive Officer
Award
Jan 12, 2026
$0.00
1.0M
$0.00
3.1M
Nagendran Sukumar
President and Head of R&D
Exempt
Jan 12, 2026
$77,804.34
111,324
$0.70
1.1M
Alam Kamran
CHIEF FINANCIAL OFFICER
Award
Jan 12, 2026
$0.00
359,000
$0.00
1.5M
Nagendran Sukumar
President and Head of R&D
Exempt
Jan 12, 2026
$151,635.96
88,676
$1.71
1.2M
Nagendran Sukumar
President and Head of R&D
Sell
Jan 12, 2026
$942,000.00
200,000
$4.71
1.0M
Nagendran Sukumar
President and Head of R&D
Award
Jan 12, 2026
$0.00
427,000
$0.00
1.4M
Nagendran Sukumar
President and Head of R&D
Exempt
Sep 10, 2025
$0.00
41,150
$0.00
292,855
Nagendran Sukumar
President and Head of R&D
Exempt
Sep 10, 2025
$28,759.74
41,150
$0.70
1.2M
Nagendran Sukumar
President and Head of R&D
Sell
Sep 10, 2025
$646,000.00
200,000
$3.23
1.0M
Nagendran Sukumar
President and Head of R&D
Sell
Aug 21, 2025
$162,603.90
57,054
$2.85
1.2M
Sepp-Lorenzino Laura
Award
Jun 02, 2025
$0.00
113,246
$0.00
113,246
Donenberg Phillip B.
Award
Jun 02, 2025
$0.00
113,246
$0.00
113,246
Long Alison S
Award
Jun 02, 2025
$0.00
113,246
$0.00
113,246
Donenberg Phillip B.
Award
Jun 02, 2025
$0.00
56,623
$0.00
219,954
Sepp-Lorenzino Laura
Award
Jun 02, 2025
$0.00
56,623
$0.00
105,843
Stalfort Sean
Award
Jun 02, 2025
$0.00
113,246
$0.00
113,246
Long Alison S
Award
Jun 02, 2025
$0.00
56,623
$0.00
105,843
Stalfort Sean
Award
Jun 02, 2025
$0.00
56,623
$0.00
1.2M