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, Q3 2025
Institutional positions in Korsana Biosciences, Inc. as of Sep 30, 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
- 17
- 0 vs. Q2 2025
- Shares held
- 258.8K
- −104.0K (−28.7%) vs. Q2 2025
- Total value
- $595.4K
- −$460.5K (−43.6%) vs. Q2 2025
- New holders
- 3
- 2 more added
- Sold out
- 3
- 3 more reduced
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Korsana Biosciences, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Siren, L.L.C. | 116,155 | $267.2K | 0.01% | 00.0% | Unchanged |
| DRW Securities, LLC | 43,617 | $100.3K | 0.01% | +43,617 | New |
| Geode Capital Management, LLC | 37,158 | $85.5K | 0.00% | +4,423+13.5% | Added |
| Vanguard Group Inc | 23,490 | $54.0K | 0.00% | 00.0% | Unchanged |
| BlackRock, Inc. | 16,797 | $38.6K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 13,293 | $30.6K | 0.00% | +13,293 | New |
| FMR LLC | 4,746 | $10.9K | 0.00% | +6+0.1% | Added |
| Tower Research Capital LLC (TRC) | 2,328 | $5.35K | 0.00% | −435−15.7% | Reduced |
| Morgan Stanley | 649 | $1.49K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 192 | $442 | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 130 | $304 | 0.00% | 00.0% | Unchanged |
| MAI Capital Management | 100 | $230 | 0.00% | 00.0% | Unchanged |
| Activest Wealth Management | 100 | $230 | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 49 | $113 | 0.00% | −9,678−99.5% | Reduced |
| Bank of America Corp | 22 | $50 | 0.00% | −2−8.3% | Reduced |
| BNP Paribas Arbitrage, SA | 5 | $12 | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 5 | $12 | 0.00% | +5 | New |
| Tyndall Capital Partners L P | 0 | $0 | 0.00% | −155,187−100.0% | Sold out |
| SBI Securities Co., Ltd. | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Pandora Wealth, Inc. | 0 | $0 | 0.00% | −11−100.0% | Sold out |