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TAYSHA GENE THER (TSHA)
NASDAQ
$4.65-$0.10 (-2.00%)
Price as of Oct 02, 2026 5:33 PM EDT- $1.5BMarket Cap
- -2.87%1-Year Change
- BiotechnologyIndustry
TAYSHA GENE THER (TSHA)
$4.65-$0.10 (-2.00%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
AVORO CAPITAL ADVISORS LLC | 7.47% | 23.9M | +2.2M (+9.16%) | Jun 30, 2026 |
RA CAPITAL MANAGEMENT, L.P. | 7.36% | 23.6M | 0 (0.00%) | Jun 30, 2026 |
GOLDMAN SACHS GROUP INC | 7.10% | 22.7M | +343,473 (+1.51%) | Jun 30, 2026 |
BLACKROCK, INC. | 6.47% | 20.7M | +2.3M (+11.24%) | Jun 30, 2026 |
VESTAL POINT CAPITAL, LP | 6.07% | 19.4M | +1.4M (+7.29%) | Jun 30, 2026 |
MORGAN STANLEY | 5.15% | 16.5M | -1.5M (-8.96%) | Jun 30, 2026 |
RTW INVESTMENTS, LP | 4.24% | 13.6M | -119,990 (-0.88%) | Jun 30, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 3.81% | 12.2M | +2.2M (+17.97%) | Jun 30, 2026 |
FIDELITY MT VERNON STREET TRUST | 1.89% | 6.0M | -406,615 (-6.74%) | May 31, 2026 |
SPDR SERIES TRUST | 1.87% | 6.0M | 0 (0.00%) | Jul 31, 2026 |
FIDELITY SALEM STREET TRUST | 0.83% | 2.7M | +2.4M (+91.57%) | Jul 31, 2026 |
TEKLA LIFE SCIENCES INVESTORS | 0.47% | 1.5M | +475,589 (+31.78%) | Jun 30, 2026 |
VANGUARD SCOTTSDALE FUNDS | 0.43% | 1.4M | +45,000 (+3.31%) | May 31, 2026 |
SCHWAB STRATEGIC TRUST | 0.38% | 1.2M | +2,730 (+0.23%) | May 31, 2026 |
Current Ownership Distribution
- Institutions2.5B (85.12%)
- Mutual Funds412.2M (13.98%)
- Insiders26.5M (0.90%)
- Other0 (0.00%)
Insider Transactions
- 0.90% (26.5M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 3Number of InsiderSelling (last 12 months)
- $61.9MAmount 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 |