Who owns Q32 Bio Inc.?
Institutional ownership of QTTB from SEC Form 13F filings across 47 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.
47
13F holders
$41.4M
value, 2026 filers
11.8%
of shares outstanding (3.5M sh)
15
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 QTTB's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Point72 Asset Management, L.P.NEW | 1.2M | $14.9M | 0.0% | 3.9% | new |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 518,803 | $6.6M | 0.0% | 1.7% | -15.3% |
| 3 | Woodline Partners LPNEW | 286,212 | $3.6M | 0.0% | 1% | new |
| 4 | AMERICAN CENTURY COMPANIES INC | 272,752 | $3.5M | 0.0% | 0.9% | +1353.1% |
| 5 | ACADIAN ASSET MANAGEMENT LLC | 218,234 | $2,779 | 0.0% | 0.7% | +26.4% |
| 6 | JANE STREET GROUP, LLC | 162,747 | $2.1M | 0.0% | 0.5% | +148.1% |
| 7 | BOOTHBAY FUND MANAGEMENT, LLCNEW | 130,427 | $1.7M | 0.0% | 0.4% | new |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 122,690 | $1.6M | 0.0% | 0.4% | +3.8% |
| 9 | CITADEL ADVISORS LLC | 120,663 | $1.5M | 0.0% | 0.4% | +679.4% |
| 10 | BlackRock, Inc. | 118,507 | $1.5M | 0.0% | 0.4% | +37.6% |
| 11 | MARSHALL WACE, LLP | 67,045 | $854,153 | 0.0% | 0.2% | +27.9% |
| 12 | VANGUARD FIDUCIARY TRUST CO | 66,217 | $843,605 | 0.0% | 0.2% | +32.4% |
| 13 | TWO SIGMA INVESTMENTS, LP | 49,582 | $631,675 | 0.0% | 0.2% | +17.1% |
| 14 | Cambridge Investment Research Advisors, Inc. | 36,162 | $460 | 0.0% | 0.1% | +3.2% |
| 15 | Squarepoint Ops LLCNEW | 23,790 | $303,085 | 0.0% | 0.1% | new |
| 16 | NORTHERN TRUST CORP | 23,631 | $301,059 | 0.0% | 0.1% | -5.6% |
| 17 | SUSQUEHANNA INTERNATIONAL GROUP, LLPNEW | 23,342 | $297,377 | 0.0% | 0.1% | new |
| 18 | LPL Financial LLCNEW | 18,170 | $231,486 | 0.0% | 0.1% | new |
| 19 | HRT FINANCIAL LPNEW | 15,949 | $203 | 0.0% | 0.1% | new |
| 20 | UBS Group AG | 15,008 | $191,202 | 0.0% | 0.1% | +5458.5% |
| 21 | Balyasny Asset Management L.P.NEW | 12,342 | $157,237 | 0.0% | 0% | new |
| 22 | ExodusPoint Capital Management, LPNEW | 11,336 | $144,421 | 0.0% | 0% | new |
| 23 | MILLENNIUM MANAGEMENT LLCNEW | 10,928 | $139,223 | 0.0% | 0% | new |
| 24 | MORGAN STANLEY | 6,456 | $82,259 | 0.0% | 0% | -32.5% |
| 25 | Vanguard Global Advisers, LLC | 4,824 | $61,458 | 0.0% | 0% | +151.9% |
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.