Q32 Bio Inc. - QTTB
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 1 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ORBIMED ADVISORS LLC | History | No change | 2,252,987 | 7,479 | 0.15% | 0.1% | 1 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Atlas Venture Life Science Advisors, LLC | History | No change | 2,092,106 | 6,945 | 0.8% | 0.55% | 2 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Carlyle Group Inc. | History | No change | 1,102,741 | 3,616 | 0.03% | 0.05% | 3 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| ACORN CAPITAL ADVISORS, LLC | History | Reduced | 493,425 | 1,638 | 0.56% | 0.81% | 4 | -310,000 | -38.58% | Q4 2025 | Feb 17, 2026 |
| VANGUARD GROUP INC | History | Added to | 321,051 | 1,065 | 0.0% | 0.0% | 5 | +25,642 | 8.68% | Q4 2025 | Jan 29, 2026 |
| ARCH Venture Management, LLC | History | No change | 320,482 | 1,064 | 0.16% | 0.13% | 6 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| PFIZER INC | History | No change | 277,777 | 922 | 0.39% | 0.13% | 7 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| Sanofi | History | No change | 244,083 | 810 | 0.26% | 0.19% | 8 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| Opaleye Management Inc. | History | New | 213,363 | 708 | 0.09% | — | 9 | +213,363 | New | Q4 2025 | Apr 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 106,113 | 352 | 0.0% | 0.0% | 10 | +17,617 | 19.91% | Q4 2025 | Feb 09, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 99,600 | 330 | 0.0% | 0.0% | 11 | +52,300 | 110.57% | Q4 2025 | Feb 12, 2026 |
| BlackRock, Inc. | History | Reduced | 59,932 | 198 | 0.0% | 0.0% | 12 | -33,073 | -35.56% | Q4 2025 | Feb 12, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 51,268 | 170 | 0.0% | 0.0% | 13 | -53,504 | -51.07% | Q4 2025 | Feb 17, 2026 |
| Monaco Asset Management SAM | History | Reduced | 50,919 | 169 | 0.03% | 0.04% | 14 | -260,218 | -83.63% | Q4 2025 | Feb 10, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Added to | 48,373 | 159 | 0.0% | 0.0% | 15 | +18,634 | 62.66% | Q4 2025 | Feb 10, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 46,825 | 155 | 0.0% | 0.0% | 16 | +15,319 | 48.62% | Q4 2025 | Feb 17, 2026 |
| CITADEL ADVISORS LLC | History | Added to | 45,728 | 151 | 0.0% | 0.0% | 17 | +35,611 | 351.99% | Q4 2025 | Feb 17, 2026 |
| Affinity Asset Advisors, LLC | History | No change | 27,777 | 92 | 0.01% | 0.0% | 18 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| JANE STREET GROUP, LLC | History | New | 25,374 | 84 | 0.0% | — | 19 | +25,374 | New | Q4 2025 | Feb 12, 2026 |
| NORTHERN TRUST CORP | History | Reduced | 25,033 | 83 | 0.0% | 0.0% | 20 | -6,920 | -21.66% | Q4 2025 | Feb 17, 2026 |
| HRT FINANCIAL LP | History | Added to | 24,698 | 81 | 0.0% | 0.0% | 21 | +9,862 | 66.47% | Q4 2025 | Feb 12, 2026 |
| STATE STREET CORP | History | No change | 21,237 | 70 | 0.0% | 0.0% | 22 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| XTX Topco Ltd | History | New | 20,353 | 67 | 0.0% | — | 23 | +20,353 | New | Q4 2025 | Feb 17, 2026 |
| ADAR1 Capital Management, LLC | History | New | 20,000 | 66 | 0.0% | — | 24 | +20,000 | New | Q4 2025 | Feb 18, 2026 |
| Scientech Research LLC | History | New | 15,510 | 51 | 0.03% | — | 25 | +15,510 | New | Q4 2025 | Feb 17, 2026 |
| UBS Group AG | History | Added to | 13,606 | 45 | 0.0% | 0.0% | 26 | +8,360 | 159.36% | Q4 2025 | Jan 29, 2026 |
| MORGAN STANLEY | History | Reduced | 5,478 | 18 | 0.0% | 0.0% | 27 | -5,865 | -51.71% | Q4 2025 | Feb 13, 2026 |
| EverSource Wealth Advisors, LLC | History | Reduced | 4,640 | 15 | 0.0% | 0.0% | 28 | -385 | -7.66% | Q4 2025 | Feb 06, 2026 |
| FMR LLC | History | Reduced | 3,364 | 11 | 0.0% | 0.0% | 29 | -12,503 | -78.8% | Q4 2025 | Feb 17, 2026 |
| FEDERATED HERMES, INC. | History | Reduced | 2,273 | 7 | 0.0% | 0.0% | 30 | -101 | -4.25% | Q4 2025 | Feb 12, 2026 |
| Global Retirement Partners, LLC | History | Reduced | 1,500 | 4 | 0.0% | 0.0% | 31 | -3,500 | -70.0% | Q4 2025 | Feb 06, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 976 | 3 | 0.0% | 0.0% | 33 | -5,506 | -84.94% | Q4 2025 | Feb 17, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 1,035 | 3 | 0.0% | 0.0% | 32 | -490 | -32.13% | Q4 2025 | Feb 17, 2026 |
| Arax Advisory Partners | History | Reduced | 1,111 | 3 | 0.0% | 0.0% | 34 | -104 | -8.56% | Q4 2025 | Feb 13, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | New | 500 | 1 | 0.0% | — | 36 | +500 | New | Q4 2025 | Feb 17, 2026 |
| JPMORGAN CHASE & CO | History | Added to | 324 | 1 | 0.0% | — | 35 | +320 | 8000.0% | Q4 2025 | Feb 11, 2026 |
| ROYAL BANK OF CANADA | History | New | 235 | 1 | 0.0% | — | 37 | +235 | New | Q4 2025 | Feb 17, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Reduced | 308 | 1 | 0.0% | — | 38 | -124 | -28.7% | Q4 2025 | Feb 10, 2026 |
| Russell Investments Group, Ltd. | History | No change | 454 | 1 | 0.0% | — | 39 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Rockefeller Capital Management L.P. | History | No change | 577 | 1 | 0.0% | 0.0% | 40 | 0 | 0.0% | Q4 2025 | Mar 16, 2026 |
| Trustees of Columbia University in the City of New York | History | Closed out | 0 | 0 | — | 0.04% | — | -133,903 | -100.0% | Q3 2025 | Nov 14, 2025 |
| TWO SIGMA SECURITIES, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -13,749 | -100.0% | Q3 2025 | Nov 14, 2025 |
| DLK Investment Management, LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -10,333 | -100.0% | Q3 2025 | Oct 14, 2025 |
| SBI Securities Co., Ltd. | History | Reduced | 157 | 0 | — | 0.0% | — | -7,999 | -98.08% | Q4 2025 | Feb 03, 2026 |
| China Universal Asset Management Co., Ltd. | History | Closed out | 0 | 0 | — | 0.0% | — | -2,138 | -100.0% | Q3 2025 | Nov 10, 2025 |
| BARCLAYS PLC | History | Reduced | 19 | 0 | — | 0.0% | — | -803 | -97.69% | Q4 2025 | Feb 13, 2026 |
| Mirae Asset Global Investments Co., Ltd. | History | Closed out | 0 | 0 | — | — | — | -472 | -100.0% | Q3 2025 | Nov 03, 2025 |
| CITIGROUP INC | History | Closed out | 0 | 0 | — | — | — | -236 | -100.0% | Q3 2025 | Nov 10, 2025 |
| GF FUND MANAGEMENT CO. LTD. | History | Closed out | 0 | 0 | — | — | — | -227 | -100.0% | Q3 2025 | Nov 07, 2025 |
| CWM, LLC | History | Reduced | 54 | 0 | — | — | — | -165 | -75.34% | Q4 2025 | Jan 26, 2026 |
| Allworth Financial LP | History | New | 98 | 0 | — | — | — | +98 | New | Q4 2025 | Feb 05, 2026 |
| OSAIC HOLDINGS, INC. | History | Reduced | 132 | 0 | — | — | — | -55 | -29.41% | Q4 2025 | Feb 17, 2026 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | History | New | 30 | 0 | — | — | — | +30 | New | Q4 2025 | Feb 10, 2026 |
| ST GERMAIN D J CO INC | History | Closed out | 0 | 0 | — | — | — | -11 | -100.0% | Q3 2025 | Oct 07, 2025 |
| DANSKE BANK A/S | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 02, 2026 |
| HARBOUR INVESTMENTS, INC. | History | No change | 11 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 09, 2026 |
| GROUP ONE TRADING LLC | History | No change | 34 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| NISA INVESTMENT ADVISORS, LLC | History | No change | 166 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 15, 2026 |
| AdvisorNet Financial, Inc | History | No change | 2 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 20, 2026 |
| Federation des caisses Desjardins du Quebec | History | No change | 70 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |