Korsana Biosciences, Inc.
KRSA- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001755237
No open-market purchases or sales by Korsana Biosciences, Inc. insiders were filed in the last 90 days; 21 institutions reported holding it in 13F filings for Q2 2026, worth $11.2M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Korsana Biosciences, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 19
- +2 vs. Q3 2025
- Shares held
- 296.3K
- +37.4K (+14.5%) vs. Q3 2025
- Total value
- $376.3K
- −$219.1K (−36.8%) vs. Q3 2025
- New holders
- 4
- 5 more added
- Sold out
- 2
- 3 more reduced
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting KRSA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 21 | $11.2M |
| Q1 2026 | 17 | $249.0K |
| Q4 2025 | 19 | $376.3K |
| Q3 2025 | 17 | $595.4K |
| Q2 2025 | 17 | $1.06M |
| Q1 2025 | 18 | $931.7K |
| Q4 2024 | 19 | $1.23M |
| Q3 2024 | 15 | $2.70M |
| Q2 2024 | 17 | $2.41M |
| Q1 2024 | 15 | $3.42M |
| Q4 2023 | 15 | $3.58M |
| Q3 2023 | 17 | $3.66M |
| Q2 2023 | 18 | $4.10M |
| Q1 2023 | 34 | $8.95M |
| Q4 2022 | 40 | $13.7M |
| Q3 2022 | 38 | $18.3M |
| Q2 2022 | 41 | $11.5M |
| Q1 2022 | 50 | $25.6M |
| Q4 2021 | 56 | $40.7M |
| Q3 2021 | 62 | $75.8M |
| Q2 2021 | 68 | $96.0M |
| Q1 2021 | 71 | $62.5M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Korsana Biosciences, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Siren, L.L.C. | 115,603 | $146.8K | 0.00% | −552−0.5% | Reduced |
| Geode Capital Management, LLC | 43,302 | $55.0K | 0.00% | +6,144+16.5% | Added |
| Two Sigma Investments, LP | 41,555 | $52.8K | 0.00% | +28,262+212.6% | Added |
| Two Sigma Advisers, LP | 28,300 | $35.9K | 0.00% | +28,300 | New |
| Vanguard Group Inc | 23,490 | $29.8K | 0.00% | 00.0% | Unchanged |
| BlackRock, Inc. | 16,797 | $21.3K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 10,027 | $12.7K | 0.00% | +10,027 | New |
| Citigroup Inc | 8,204 | $10.4K | 0.00% | +8,204 | New |
| FMR LLC | 4,740 | $6.02K | 0.00% | −6−0.1% | Reduced |
| Tower Research Capital LLC (TRC) | 3,154 | $4.01K | 0.00% | +826+35.5% | Added |
| UBS Group AG | 376 | $478 | 0.00% | +327+667.3% | Added |
| Group One Trading, L.P. | 192 | $244 | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 130 | $165 | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 107 | $136 | 0.00% | +85+386.4% | Added |
| MAI Capital Management | 100 | $127 | 0.00% | 00.0% | Unchanged |
| Activest Wealth Management | 100 | $127 | 0.00% | 00.0% | Unchanged |
| Whi Trust Co LLC | 72 | $91 | 0.00% | +72 | New |
| BNP Paribas Arbitrage, SA | 5 | $6 | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 1 | $2 | 0.00% | −648−99.8% | Reduced |
| DRW Securities, LLC | 0 | $0 | 0.00% | −43,617−100.0% | Sold out |
| Barclays PLC | 0 | $0 | 0.00% | −5−100.0% | Sold out |