Companies / Korro Bio, Inc.
Korro Bio, Inc.
Nasdaq: KRROCIK 1703647CAMBRIDGE, MA
Insider flow · last 90 daysNet sells $2.50M
Financials · FY2025
Ownership
14.7M shares outstanding · as of Aug 5, 2026
Ownership
| Insiders | 10.24% | 1,507,449 |
| 10%+ / strategic | 79.58% | 11,718,894 |
| Institutions | 65.02% | 9,574,430 |
| Public float | 0.00% | 0 |
Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 19
View all →| Insider | % of shares | Shares |
|---|---|---|
Baskett Forest10% owner | 8.81% | 1,297,893 |
Behbahani AliDirector · 10% owner | 8.81% | 1,297,893 |
Chang Carmen10% owner | 8.81% | 1,297,893 |
Florence Anthony A. Jr.10% owner | 8.81% | 1,297,893 |
Makhzoumi Mohamad10% owner | 8.81% | 1,297,893 |
Mathers Edward T10% owner | 8.81% | 1,297,893 |
New Enterprise Associates 17, L.P.10% owner | 8.81% | 1,297,893 |
Sandell Scott D10% owner | 8.81% | 1,297,893 |
Walker Paul Edward10% owner | 8.81% | 1,297,893 |
Yang Rick10% owner | 8.81% | 1,297,893 |
Institutional holders 87
View all →| Holder | Value | % of shares |
|---|---|---|
| $11.77M | 7.06% | |
| $10.78M | 5.55% | |
| $9.11M | 7.72% | |
| $8.74M | 7.41% | |
| $5.43M | 4.60% | |
| $4.81M | 4.07% | |
| $3.92M | 3.33% | |
| $3.33M | 2.83% | |
| $3.07M | 1.58% | |
| $3.03M | 1.82% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | Balyasny Asset Management L.P. 13F manager | New | Common stock | $11.77M | +1.0M | 1,040,054 7.06% of shares | medium |
| Q2 2026 as of | BlackRock, Inc. 13F manager | Add | Common stock | $4.75M | +360K +78.75% | 817,621 5.55% of shares | low |
| Q1 2026 as of | Adage Capital Partners Gp, L.L.C. 13F manager | New | Common stock | $2.59M | +228K | 228,400 1.55% of shares | low |
| Q1 2026 as of | AQR Capital Management, LLC 13F manager | Add | Common stock | $2.57M | +227K +558.73% | 267,755 1.82% of shares | low |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common stock | $1.14M | +86K +59.07% | 232,587 1.58% of shares | low |
| Q1 2026 as of | Millennium Management LLC 13F manager | Trim | Common stock | $-1.10M | -97K -60.52% | 63,606 0.43% of shares | low |
| Q1 2026 as of | Two Sigma Investments, LP 13F manager | Add | Common stock | $979.0K | +86K +109.50% | 165,472 1.12% of shares | low |
| Q1 2026 as of | Renaissance Technologies LLC 13F manager | Add | Common stock | $694.2K | +61K +81.88% | 136,227 0.93% of shares | low |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
| Vanguard Group Inc | Passive13G | — |
| Nantahala Capital Management, LLC | Passive13G | — |
| Point72 Asset Management, L.P. | Passive13G/A | — |
| Point72 Asset Management, L.P. | Passive13G | — |
| Fmr LLC | Passive13G/A | — |
| Driehaus Capital Management LLC | Passive13G/A | — |
| Lynx1 Capital Management LP | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| KRRO | — | 500946108 |