Who owns Korro Bio, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of KRRO from SEC Form 13F filings across 105 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 105 institutions disclosed 14.0M shares of Korro Bio, Inc. worth $184.8M — about 79.6% of shares outstanding; the largest disclosed holder is Lynx1 Capital Management LP. Source: SEC Form 13F filings, parsed by EvidInvest.
105
13F holders
$184.8M
value, 2026 filers
79.6%
of shares outstanding (14.0M sh)
21
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of KRRO's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Lynx1 Capital Management LP | 1.5M | $20.3M | 2.3% | 8.7% | 0.0% |
| 2 | NEA Management Company, LLC | 1.3M | $17.1M | 1.1% | 7.4% | 0.0% |
| 3 | Venrock Adviser, LLC | 1.0M | $13.3M | 0.4% | 5.7% | 0.0% |
| 4 | Atlas Venture Life Science Advisors, LLC | 962,884 | $12.7M | 1.4% | 5.5% | -15.3% |
| 5 | Balyasny Asset Management L.P. | 951,783 | $12.5M | 0.0% | 5.4% | -8.5% |
| 6 | BlackRock, Inc. | 817,621 | $10.8M | 0.0% | 4.6% | +77.7% |
| 7 | Affinity Asset Advisors, LLC | 706,904 | $9.3M | 0.4% | 4% | 0.0% |
| 8 | Nantahala Capital Management, LLC | 660,036 | $8.7M | 0.3% | 3.7% | 0.0% |
| 9 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 540,968 | $7.1M | 0.0% | 3.1% | +136.9% |
| 10 | ADAR1 Capital Management, LLC | 540,054 | $7.1M | 0.3% | 3.1% | 0.0% |
| 11 | VANGUARD CAPITAL MANAGEMENT LLC | 454,778 | $6.0M | 0.0% | 2.6% | +46.3% |
| 12 | Driehaus Capital Management LLC | 450,045 | $5.9M | 0.0% | 2.6% | 0.0% |
| 13 | TCG Crossover Management, LLC | 416,301 | $5.5M | 0.1% | 2.4% | 0.0% |
| 14 | Siren, L.L.C. | 347,718 | $4.6M | 0.1% | 2% | 0.0% |
| 15 | AQR CAPITAL MANAGEMENT LLC | 298,974 | $3.9M | 0.0% | 1.7% | +11.7% |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | 296,870 | $3.9M | 0.0% | 1.7% | +71.0% |
| 17 | 72 Investment Holdings, LLC | 276,831 | $3.6M | 7.3% | 1.6% | 0.0% |
| 18 | STATE STREET CORP | 232,587 | $3.1M | 0.0% | 1.3% | +65.7% |
| 19 | VANGUARD PORTFOLIO MANAGEMENT LLC | 223,551 | $2.9M | 0.0% | 1.3% | +50.5% |
| 20 | TWO SIGMA INVESTMENTS, LP | 178,071 | $2.3M | 0.0% | 1% | +7.6% |
| 21 | JPMORGAN CHASE & CO | 124,726 | $1.6M | 0.0% | 0.7% | +82.1% |
| 22 | MILLENNIUM MANAGEMENT LLC | 118,434 | $1.6M | 0.0% | 0.7% | +86.2% |
| 23 | GOLDMAN SACHS GROUP INC | 116,983 | $1.5M | 0.0% | 0.7% | +131.5% |
| 24 | RENAISSANCE TECHNOLOGIES LLC | 110,524 | $1.5M | 0.0% | 0.6% | -18.9% |
| 25 | UBS Group AG | 105,453 | $1.4M | 0.0% | 0.6% | +386.5% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.