Korro BioKRRO
13F holders, Q1 2025 (March 31)75holders −9
9new positions
18sold out
3famous investors
$17.41avg. 13F price*
At the end of Q1 2025, 75 institutions reported holding Korro Bio Inc. (KRRO) in their 13F filings, down 9 from Q4 2024. 9 opened new positions and 18 sold out. The largest holders were Atlas Venture Life Science Advisors, LLC ($19.8M), NEA Management Company, LLC ($19.0M) and Deep Track Capital, LP ($15.2M). 3 famous investors held it, including Steve Cohen (0.0% of Point72 Asset Management's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Korro Bio Inc.
- CUSIP
- 500946108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 9 | $9.3M |
| Exits | 18 | $9.7M |
All 13F filers, Q4 2024 → Q1 2025: 891,152 shares bought and 617,104 shares sold, net +274,048 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 75 holders
| Atlas Venture Life Science Advisors, LLC | 3.79% | No change | 1,137,149 | $19.8M |
| NEA Management Company, LLC | 1.46% | No change | 1,090,793 | $19.0M |
| Deep Track Capital, LP | 0.49% | No change | 874,614 | $15.2M |
| Alliancebernstein L.P. | 0.00% | Reduce -3.6% | 680,517 | $11.8M |
| FMR LLC | 0.00% | Add +0.2% | 643,269 | $11.2M |
| Driehaus Capital Management LLC | 0.10% | Add +17.7% | 582,449 | $10.1M |
| Point72 Asset Management | 0.03% | Add +5.4% | 520,890 | $9.1M |
| BlackRock, Inc. | 0.00% | Reduce -2.4% | 441,430 | $7.7M |
| Siren, L.L.C. | 0.41% | No change | 418,833 | $7.3M |
| Vanguard Group Inc. | 0.00% | Reduce -2.0% | 381,799 | $6.6M |
| Cormorant Asset Management, LP | 0.50% | New | 380,303 | $6.6M |
| Qiming U.S. Ventures Management, LLC | 27.74% | No change | 368,085 | $6.4M |
| 72 Investment Holdings, LLC | 13.54% | No change | 276,831 | $4.8M |
| Citadel Advisors | 0.00% | Reduce -31.5% | 253,250 | $4.4M |
| Polar Capital Holdings Plc | 0.03% | Add +233.3% | 250,000 | $4.4M |
| Geode Capital Management, LLC | 0.00% | Add +2.3% | 140,221 | $2.4M |
| Tri Locum Partners LP | 1.15% | Reduce -11.0% | 128,381 | $2.2M |
| State Street Corp. | 0.00% | Reduce -1.3% | 122,438 | $2.1M |
| Millennium Management | 0.00% | Add +13.6% | 108,869 | $1.9M |
| Franklin Resources Inc. | 0.00% | Reduce -0.1% | 91,704 | $1.6M |
| Aberdeen Group plc | 0.00% | New | 84,428 | $1.5M |
| UBS Group AG | 0.00% | Add +1.6% | 74,211 | $1.3M |
| ADAR1 Capital Management, LLC | 0.24% | Add +18.5% | 68,715 | $1.2M |
| Ally Bridge Group (NY) LLC | 0.94% | Reduce -15.5% | 59,723 | $1.0M |
| Northern Trust Corp. | 0.00% | Reduce -3.9% | 58,211 | $1.0M |
| Woodline Partners LP | 0.01% | Reduce -50.9% | 50,094 | $872K |
| DAFNA Capital Management LLC | 0.24% | New | 47,086 | $820K |
| Morgan Stanley | 0.00% | Add +50.9% | 43,100 | $750K |
| Rock Springs Capital Management LP | 0.04% | No change | 35,719 | $622K |
| Orbimed Advisors LLC | 0.01% | No change | 32,400 | $564K |
| Walleye Capital LLC | 0.01% | Reduce -24.9% | 30,955 | $539K |
| Schonfeld Strategic Advisors LLC | 0.00% | Reduce -73.0% | 30,475 | $531K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -10.1% | 20,944 | $365K |
| Charles Schwab Investment Management Inc. | 0.00% | Add +4.5% | 18,288 | $318K |
| Raymond James Financial Inc. | 0.00% | Add +76.1% | 18,222 | $317K |
| Blair William & Co. | 0.00% | Add +25.9% | 16,230 | $283K |
| Bank of New York Mellon Corp | 0.00% | Add +9.0% | 16,113 | $281K |
| Nuveen, LLC | 0.00% | — | 12,145 | $211K |
| XTX Topco Ltd | 0.01% | New | 10,600 | $185K |
| Susquehanna International Group, LLP | 0.00% | New | 10,372 | $181K |
| AlphaQuest LLC | 0.02% | Add +320.1% | 9,196 | $160K |
| Rhumbline Advisers | 0.00% | Reduce -5.5% | 9,069 | $158K |
| Barclays PLC | 0.00% | Reduce -30.3% | 7,241 | $126K |
| Royal Bank of Canada | 0.00% | Reduce -21.0% | 6,097 | $106K |
| Citigroup Inc. | 0.00% | Reduce -8.8% | 4,831 | $84K |
| Bank of America Corp. | 0.00% | Reduce -35.5% | 4,541 | $79K |
| Wells Fargo & Company | 0.00% | Add +11.8% | 3,793 | $66K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +4.5% | 3,658 | $64K |
| MetLife Investment Management, LLC | 0.00% | No change | 3,639 | $63K |
| Deutsche Bank AG | 0.00% | Reduce -12.0% | 3,616 | $63K |
| JPMorgan Chase & Co. | 0.00% | Add +7.5% | 3,069 | $53K |
| Corebridge Financial, Inc. | 0.00% | Reduce -0.5% | 3,019 | $53K |
| New York State Common Retirement Fund | 0.00% | No change | 3,000 | $52K |
| Quarry LP | 0.01% | New | 2,011 | $35K |
| North Star Investment Management Corp. | 0.00% | No change | 1,800 | $31K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 1,226 | $21K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +174.8% | 764 | $13K |
| Steward Partners Investment Advisory, LLC | 0.00% | Add +18.2% | 650 | $11K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 598 | $10K |
| GAMMA Investing LLC | 0.00% | Add +7312.5% | 593 | $10K |
| Legal & General Group Plc | 0.00% | Reduce -86.9% | 566 | $10K |
| California State Teachers Retirement System | 0.00% | Reduce -90.9% | 442 | $8K |
| Duncker Streett & Co. Inc. | 0.00% | No change | 437 | $8K |
| BNP Paribas Financial Markets | 0.00% | Reduce -94.7% | 373 | $6K |
| Nisa Investment Advisors, LLC | 0.00% | Add +1173.1% | 331 | $6K |
| Amalgamated Bank | 0.00% | No change | 211 | $4K |
| Sterling Capital Management LLC | 0.00% | Reduce -43.8% | 82 | $1K |
| Federated Hermes, Inc. | 0.00% | New | 64 | $1K |
| BNP Paribas | 0.00% | New | 59 | $1K |
| Cwm, LLC | 0.00% | Add +1950.0% | 41 | $1K |
| Spire Wealth Management | 0.00% | No change | 39 | $679 |
| SBI Securities Co., Ltd. | 0.00% | No change | 7 | $122 |
| MAI Capital Management | 0.00% | No change | 5 | $88 |
| True Wealth Design, LLC | 0.00% | New | 1 | $18 |
| Osaic Holdings, Inc. | 0.00% | No change | 1 | $17 |
"% of holder's portfolio" is KRRO's weight in each manager's 13F, not the share of Korro Bio Inc. the manager owns.