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, Q1 2026
Institutional positions in Korsana Biosciences, Inc. as of Mar 31, 2026. 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
- −1 vs. Q4 2025
- Shares held
- 161.9K
- −110.8K (−40.6%) vs. Q4 2025
- Total value
- $249.0K
- −$97.4K (−28.1%) vs. Q4 2025
- New holders
- 5
- 2 more added
- Sold out
- 6
- 1 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Korsana Biosciences, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Geode Capital Management, LLC | 84,550 | $129.8K | 0.00% | +41,248+95.3% | Added |
| Citadel Advisors LLC | 18,261 | $28.0K | 0.00% | +18,261 | New |
| BlackRock, Inc. | 16,797 | $26.0K | 0.00% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 16,137 | $24.8K | 0.00% | +16,137 | New |
| Kovack Advisors, Inc. | 10,000 | $15.5K | 0.00% | +10,000 | New |
| Vanguard Fiduciary Trust Co | 7,353 | $11.3K | 0.00% | +7,353 | New |
| FMR LLC | 4,740 | $7.28K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 3,391 | $5.26K | 0.00% | +3,015+801.9% | Added |
| Group One Trading, L.P. | 192 | $295 | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 130 | $201 | 0.00% | 00.0% | Unchanged |
| MAI Capital Management | 100 | $155 | 0.00% | 00.0% | Unchanged |
| Activest Wealth Management | 100 | $155 | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 89 | $137 | 0.00% | −8,115−98.9% | Reduced |
| Whi Trust Co LLC | 72 | $112 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 5 | $8 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 4 | $6 | 0.00% | +4 | New |
| Morgan Stanley | 1 | $2 | 0.00% | 00.0% | Unchanged |
| Siren, L.L.C. | 0 | $0 | 0.00% | −115,603−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −41,555−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −28,300−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −10,027−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −3,154−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −107−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |