Korro BioKRRO
13F holders, Q2 2025 (June 30)70holders −5
10new positions
15sold out
5famous investors
$12.68avg. 13F price*
At the end of Q2 2025, 70 institutions reported holding Korro Bio Inc. (KRRO) in their 13F filings, down 5 from Q1 2025. 10 opened new positions and 15 sold out. The largest holders were Atlas Venture Life Science Advisors, LLC ($14.2M), NEA Management Company, LLC ($13.6M) and FMR LLC ($8.0M). 5 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 Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 10 | $3.2M |
| Exits | 15 | $15.4M |
All 13F filers, Q1 2025 → Q2 2025: 911,199 shares bought and 1,564,583 shares sold, net −653,384 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 70 holders
| Atlas Venture Life Science Advisors, LLC | 2.14% | No change | 1,137,149 | $14.2M |
| NEA Management Company, LLC | 1.03% | No change | 1,090,793 | $13.6M |
| FMR LLC | 0.00% | Reduce -0.6% | 639,222 | $8.0M |
| Driehaus Capital Management LLC | 0.06% | Reduce -0.3% | 580,859 | $7.3M |
| Point72 Asset Management | 0.02% | Add +3.7% | 540,074 | $6.7M |
| Cormorant Asset Management, LP | 0.43% | Add +22.3% | 465,000 | $5.8M |
| BlackRock, Inc. | 0.00% | Add +4.6% | 461,889 | $5.8M |
| Siren, L.L.C. | 0.27% | No change | 418,833 | $5.2M |
| Vanguard Group Inc. | 0.00% | Add +1.3% | 386,738 | $4.8M |
| Qiming U.S. Ventures Management, LLC | 19.47% | No change | 368,085 | $4.6M |
| Citadel Advisors | 0.00% | Add +38.5% | 350,646 | $4.4M |
| Tri Locum Partners LP | 1.06% | Add +8.7% | 139,493 | $3.5M |
| Deep Track Capital, LP | 0.11% | Reduce -68.2% | 277,966 | $3.5M |
| 72 Investment Holdings, LLC | 9.02% | No change | 276,831 | $3.5M |
| Millennium Management | 0.00% | Add +134.8% | 255,683 | $3.2M |
| Polar Capital Holdings Plc | 0.02% | No change | 250,000 | $3.1M |
| Geode Capital Management, LLC | 0.00% | Add +10.8% | 155,387 | $1.9M |
| Ally Bridge Group (NY) LLC | 1.60% | Add +158.2% | 154,223 | $1.9M |
| Blue Owl Capital Holdings LP | 0.51% | New | 125,000 | $1.6M |
| State Street Corp. | 0.00% | Reduce -0.4% | 121,940 | $1.5M |
| Aberdeen Group plc | 0.00% | No change | 84,428 | $1.1M |
| Raymond James Financial Inc. | 0.00% | Add +357.6% | 83,392 | $1.0M |
| Morgan Stanley | 0.00% | Add +89.6% | 81,733 | $1.0M |
| ADAR1 Capital Management, LLC | 0.14% | Add +0.1% | 68,815 | $859K |
| Northern Trust Corp. | 0.00% | Reduce -0.6% | 57,868 | $723K |
| DAFNA Capital Management LLC | 0.20% | Add +22.5% | 57,691 | $721K |
| Woodline Partners LP | 0.00% | No change | 50,094 | $626K |
| Renaissance Technologies | 0.00% | New | 45,700 | $571K |
| Two Sigma Investments, LP | 0.00% | New | 36,746 | $459K |
| Rock Springs Capital Management LP | 0.03% | No change | 35,719 | $446K |
| Orbimed Advisors LLC | 0.01% | No change | 32,400 | $405K |
| Bank of America Corp. | 0.00% | Add +520.0% | 28,156 | $352K |
| AlphaQuest LLC | 0.03% | Add +195.9% | 27,211 | $340K |
| D. E. Shaw & Co. | 0.00% | New | 24,383 | $305K |
| Trexquant Investment LP | 0.00% | New | 20,870 | $261K |
| UBS Group AG | 0.00% | Reduce -75.0% | 18,581 | $232K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -2.8% | 17,776 | $222K |
| Bank of New York Mellon Corp | 0.00% | Add +2.5% | 16,522 | $206K |
| Walleye Capital LLC | 0.00% | Reduce -48.1% | 16,060 | $201K |
| Rhumbline Advisers | 0.00% | Add +4.9% | 9,511 | $119K |
| Royal Bank of Canada | 0.00% | Add +8.3% | 6,605 | $82K |
| Quarry LP | 0.01% | Add +123.8% | 4,500 | $56K |
| Wells Fargo & Company | 0.00% | Add +14.2% | 4,333 | $54K |
| Deutsche Bank AG | 0.00% | No change | 3,616 | $45K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -4.3% | 3,502 | $44K |
| JPMorgan Chase & Co. | 0.00% | Add +3.3% | 3,170 | $40K |
| New York State Common Retirement Fund | 0.00% | No change | 3,000 | $37K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +254.6% | 2,709 | $34K |
| Citigroup Inc. | 0.00% | Reduce -48.6% | 2,484 | $31K |
| North Star Investment Management Corp. | 0.00% | No change | 1,800 | $22K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 1,226 | $15K |
| Steward Partners Investment Advisory, LLC | 0.00% | Add +76.9% | 1,150 | $14K |
| BNP Paribas Financial Markets | 0.00% | Add +75.1% | 653 | $8K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 598 | $7K |
| Cwm, LLC | 0.00% | Add +1236.6% | 548 | $7K |
| Legal & General Group Plc | 0.00% | Reduce -7.1% | 526 | $7K |
| California State Teachers Retirement System | 0.00% | No change | 442 | $6K |
| Duncker Streett & Co. Inc. | 0.00% | No change | 437 | $5K |
| Versant Capital Management, Inc | 0.00% | New | 282 | $4K |
| Amalgamated Bank | 0.00% | No change | 211 | $3K |
| Sterling Capital Management LLC | 0.00% | Add +47.6% | 121 | $2K |
| GAMMA Investing LLC | 0.00% | Reduce -88.9% | 66 | $824 |
| Nisa Investment Advisors, LLC | 0.00% | Reduce -90.9% | 30 | $375 |
| Rise Advisors, LLC | 0.00% | New | 29 | $362 |
| EverSource Wealth Advisors, LLC | 0.00% | New | 22 | $275 |
| SBI Securities Co., Ltd. | 0.00% | No change | 7 | $87 |
| MAI Capital Management | 0.00% | No change | 5 | $63 |
| Essential Partners LLC | 0.00% | — | 3 | $37 |
| Northwestern Mutual Wealth Management Co. | 0.00% | New | 2 | $25 |
| Osaic Holdings, Inc. | 0.00% | No change | 1 | $12 |
"% of holder's portfolio" is KRRO's weight in each manager's 13F, not the share of Korro Bio Inc. the manager owns.