Korro Bio, Inc. KRRO
CIK 0001703647 · CUSIP 500946108
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | Atlas Venture Life Science Advisors, LLC CIK 1917529 · View history | $38.52M 1,137,149 shares | 4.06% | +17.86K(+1.6%)Added | SEC filing ↗ Aug 9, 2024 | ▾ |
| 02 | NEA Management Company, LLC CIK 1512848 · View history | $36.95M 1,090,793 shares | 2.78% | +17.86K(+1.7%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 03 | Deep Track Capital, LP CIK 1856083 · View history | $26.10M 770,645 shares | 0.78% | +770.64KNew | SEC filing ↗ Aug 14, 2024 | ▾ |
| 04 | FMR LLC CIK 315066 · View history | $21.65M 639,125 shares | 0.00% | -88.08K(-12.1%)Reduced | SEC filing ↗ Aug 13, 2024 | ▾ |
| 05 | CITADEL ADVISORS LLC CIK 1423053 · View history | $17.92M 529,173 shares | 0.02% | -7(0.0%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
| 06 | EVENTIDE ASSET MANAGEMENT, LLC CIK 1442891 · View history | $17.92M 529,155 shares | 0.31% | -8.34K(-1.6%)Reduced | SEC filing ↗ Aug 13, 2024 | ▾ |
| 07 | VANGUARD GROUP INC CIK 102909 · View history | $15.86M 468,303 shares | 0.00% | +201.64K(+75.6%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 08 | Point72 Asset Management, L.P. CIK 1603466 · Amended · View history | $15.45M 456,085 shares | 0.05% | +190.26K(+71.6%)Added | SEC filing ↗ Sep 16, 2024 | ▾ |
| 09 | Artal Group S.A. CIK 1053906 · View history | $13.99M 413,072 shares | 0.36% | -6.15K(-1.5%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
| 10 | BlackRock Inc. CIK 1364742 · View history | $13.76M 406,381 shares | 0.00% | +325.76K(+404.1%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 11 | QIMING U.S. VENTURES MANAGEMENT, LLC CIK 1909617 · View history | $12.47M 368,085 shares | 23.69% | 0(0.0%)Unchanged | SEC filing ↗ Aug 13, 2024 | ▾ |
| 12 | 72 Investment Holdings, LLC CIK 1832749 · View history | $9.38M 276,831 shares | 23.57% | 0(0.0%)Unchanged | SEC filing ↗ Aug 14, 2024 | ▾ |
| 13 | Cormorant Asset Management, LP CIK 1583977 · View history | $9.00M 265,826 shares | 0.52% | -263.34K(-49.8%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
| 14 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $4.73M 139,658 shares | 0.00% | +81.42K(+139.8%)Added | SEC filing ↗ Aug 9, 2024 | ▾ |
| 15 | Verition Fund Management LLC CIK 1454027 · View history | $4.15M 122,384 shares | 0.03% | -17.71K(-12.6%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
| 16 | Driehaus Capital Management LLC CIK 938206 · Amended · View history | $3.96M 116,858 shares | 0.04% | +116.86KNew | SEC filing ↗ Aug 15, 2024 | ▾ |
| 17 | Ghost Tree Capital, LLC CIK 1595851 · View history | $3.39M 100,000 shares | 1.18% | +100.00KNew | SEC filing ↗ Aug 14, 2024 | ▾ |
| 18 | STATE STREET CORP CIK 93751 · View history | $3.38M 99,888 shares | 0.00% | +81.79K(+451.9%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 19 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $2.85M 84,201 shares | 0.00% | +23.31K(+38.3%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 20 | Tri Locum Partners LP CIK 1826434 · View history | $2.42M 71,428 shares | 0.61% | +71.43KNew | SEC filing ↗ Aug 14, 2024 | ▾ |
Showing 20 / 64 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 64 reporting institutions.
This page includes 20 of 64 reporting institutions. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 64 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
get_institutional_security_holders
{"cusip":"500946108","quarter":"2024Q2","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.