Q32 BioQTTB
13F holders, Q2 2025 (June 30)61holders −12
9new positions
22sold out
3famous investors
$1.49avg. 13F price*
At the end of Q2 2025, 61 institutions reported holding Q32 Bio Inc. (QTTB) in their 13F filings, down 12 from Q1 2025. 9 opened new positions and 22 sold out. The largest holders were Orbimed Advisors LLC ($3.4M), Atlas Venture Life Science Advisors, LLC ($3.1M) and Carlyle Group Inc. ($1.6M). 3 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Q32 Bio Inc.
- CUSIP
- 746964105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 9 | $442K |
| Exits | 22 | $273K |
All 13F filers, Q1 2025 → Q2 2025: 430,892 shares bought and 859,285 shares sold, net −428,393 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 61 holders
| Orbimed Advisors LLC | 0.08% | No change | 2,252,987 | $3.4M |
| Atlas Venture Life Science Advisors, LLC | 0.47% | No change | 2,092,106 | $3.1M |
| Carlyle Group Inc. | 0.03% | No change | 1,102,741 | $1.6M |
| Acorn Capital Advisors, LLC | 0.78% | No change | 803,425 | $1.2M |
| Monaco Asset Management SAM | 0.33% | Add +17.1% | 591,937 | $882K |
| ARCH Venture Management, LLC | 0.16% | No change | 320,482 | $478K |
| Pfizer Inc | 0.07% | No change | 277,777 | $414K |
| Vanguard Group Inc. | 0.00% | Reduce -12.9% | 269,429 | $401K |
| Sanofi | 0.21% | No change | 244,083 | $364K |
| BlackRock, Inc. | 0.00% | Reduce -60.9% | 178,677 | $266K |
| Trustees of Columbia University in the City of New York | 0.03% | No change | 133,903 | $200K |
| Millennium Management | 0.00% | New | 130,379 | $194K |
| Renaissance Technologies | 0.00% | New | 77,000 | $115K |
| Goldman Sachs Group Inc. | 0.00% | Add +43.2% | 63,539 | $95K |
| Geode Capital Management, LLC | 0.00% | Reduce -55.2% | 61,599 | $92K |
| Jane Street Group, LLC | 0.00% | New | 46,635 | $69K |
| FMR LLC | 0.00% | Reduce -32.0% | 42,439 | $63K |
| Acadian Asset Management LLC | 0.00% | Reduce -4.5% | 29,739 | $44K |
| Affinity Asset Advisors, LLC | 0.01% | No change | 27,777 | $41K |
| State Street Corp. | 0.00% | Reduce -80.4% | 26,937 | $40K |
| AQR Capital Management | 0.00% | Reduce -35.8% | 26,530 | $40K |
| Northern Trust Corp. | 0.00% | Reduce -56.7% | 26,058 | $39K |
| Morgan Stanley | 0.00% | Add +27.2% | 18,648 | $28K |
| Marshall Wace, LLP | 0.00% | New | 16,928 | $25K |
| Oppenheimer & Co. Inc. | 0.00% | New | 13,000 | $19K |
| Susquehanna International Group, LLP | 0.00% | Add +19.4% | 12,909 | $19K |
| UBS Group AG | 0.00% | Reduce -62.4% | 12,576 | $19K |
| Mariner, LLC | 0.00% | Reduce -86.1% | 11,780 | $18K |
| Raymond James Financial Inc. | 0.00% | No change | 10,746 | $16K |
| DLK Investment Management, LLC | 0.01% | New | 10,333 | $15K |
| SBI Securities Co., Ltd. | 0.00% | Add +5447.6% | 8,155 | $12K |
| Royal Bank of Canada | 0.00% | Add +274.3% | 6,318 | $10K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +96.8% | 6,252 | $9K |
| EverSource Wealth Advisors, LLC | 0.00% | Add +5662.0% | 5,301 | $8K |
| Cwm, LLC | 0.00% | Add +37.9% | 4,769 | $7K |
| Federated Hermes, Inc. | 0.00% | Reduce -1.2% | 2,452 | $4K |
| China Universal Asset Management Co., Ltd. | 0.00% | Add +0.3% | 2,450 | $4K |
| Bank of America Corp. | 0.00% | Reduce -69.9% | 2,198 | $3K |
| Citigroup Inc. | 0.00% | Reduce -58.6% | 1,822 | $3K |
| Arax Advisory Partners | 0.00% | New | 1,111 | $2K |
| Barclays PLC | 0.00% | Reduce -88.5% | 1,053 | $2K |
| Simplex Trading, LLC | 0.00% | New | 813 | $1K |
| Nisa Investment Advisors, LLC | 0.00% | New | 589 | $878 |
| Mirae Asset Global Investments Co., Ltd. | 0.00% | Add +15.4% | 471 | $702 |
| Russell Investments Group, Ltd. | 0.00% | Reduce -30.3% | 454 | $676 |
| BNP Paribas Financial Markets | 0.00% | Reduce -31.1% | 403 | $600 |
| GF Fund Management Co. LTD. | 0.00% | No change | 264 | $393 |
| Clark Wealth Partners | 0.00% | No change | 199 | $297 |
| Osaic Holdings, Inc. | 0.00% | Reduce -41.3% | 179 | $266 |
| Wells Fargo & Company | 0.00% | Reduce -96.2% | 139 | $207 |
| Federation des caisses Desjardins du Quebec | 0.00% | No change | 70 | $104 |
| True Wealth Design, LLC | 0.00% | Add +857.1% | 67 | $100 |
| Allworth Financial LP | 0.00% | No change | 16 | $24 |
| Harbour Investments, Inc. | 0.00% | No change | 11 | $16 |
| St Germain D J Co. Inc. | 0.00% | No change | 11 | $16 |
| CBIZ Investment Advisory Services, LLC | 0.00% | No change | 5 | $7 |
| Essential Partners LLC | 0.00% | — | 5 | $7 |
| AdvisorNet Financial, Inc | 0.00% | No change | 2 | $3 |
| Caitong International Asset Management Co., Ltd | 0.00% | No change | 2 | $3 |
| Danske Bank A/S | 0.00% | No change | 1 | $1 |
| National Bank of Canada | 0.00% | Reduce -100.0% | 1 | $1 |
"% of holder's portfolio" is QTTB's weight in each manager's 13F, not the share of Q32 Bio Inc. the manager owns.