Q32 Bio Inc. - QTTB

Ownership (Schedule 13D / 13G) · latest 50 filings · Back to all files
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Filed Form Reporting person Percent Shares SEC
Jun 04, 2026 SCHEDULE 13G RA Capital Management, L.P. 9.8% 2,332,457 View
Jun 04, 2026 SCHEDULE 13G Peter Kolchinsky 9.8% 2,332,457 View
Jun 04, 2026 SCHEDULE 13G Rajeev Shah 9.8% 2,332,457 View
Jun 04, 2026 SCHEDULE 13G RA Capital Healthcare Fund, L.P. 9.8% 2,332,457 View
Jun 04, 2026 SCHEDULE 13G BIOTECHNOLOGY VALUE FUND L P 5.3% 1,248,973 View
Jun 04, 2026 SCHEDULE 13G BVF I GP LLC 5.3% 1,248,973 View
Jun 04, 2026 SCHEDULE 13G BIOTECHNOLOGY VALUE FUND II LP 3.9% 929,003 View
Jun 04, 2026 SCHEDULE 13G BVF II GP LLC 3.9% 929,003 View
Jun 04, 2026 SCHEDULE 13G Biotechnology Value Trading Fund OS LP 0.7% 155,156 View
Jun 04, 2026 SCHEDULE 13G BVF Partners OS Ltd. 0.7% 155,156 View
Jun 04, 2026 SCHEDULE 13G BVF GP HOLDINGS LLC 9.2% 2,177,976 View
Jun 04, 2026 SCHEDULE 13G BVF PARTNERS L P/IL 9.99% 2,367,524 View
Jun 04, 2026 SCHEDULE 13G BVF INC/IL 9.99% 2,367,524 View
Jun 04, 2026 SCHEDULE 13G LAMPERT MARK N 9.99% 2,367,524 View
Jun 01, 2026 SCHEDULE 13D/A — 1.0% — View
May 28, 2026 SCHEDULE 13D/A — 11.5% — View
May 15, 2026 SCHEDULE 13G/A Point72 Asset Management, L.P. 5.7% 958,768 View
May 15, 2026 SCHEDULE 13G/A Point72 Capital Advisors, Inc. 5.7% 958,768 View
May 15, 2026 SCHEDULE 13G/A Steven A. Cohen 5.7% 958,768 View
May 15, 2026 SCHEDULE 13G Sirenia Capital Management LP 9.9% 2,057,308 View
May 15, 2026 SCHEDULE 13G Alex Silverstein 9.9% 2,057,308 View
May 06, 2026 SCHEDULE 13D/A — 1.0% — View
May 06, 2026 SCHEDULE 13G/A Opaleye Management Inc. 8.59% 1,256,228 View
May 06, 2026 SCHEDULE 13G/A Opaleye, L.P. 8.59% 1,256,228 View
May 06, 2026 SCHEDULE 13G/A James Silverman 8.59% 1,256,228 View
Mar 12, 2026 SCHEDULE 13D/A — 1.0% — View
Feb 20, 2026 SCHEDULE 13G Opaleye Management Inc. 8.65% 1,256,228 View
Feb 20, 2026 SCHEDULE 13G Opaleye, L.P. 8.65% 1,256,228 View
Feb 20, 2026 SCHEDULE 13G James Silverman 8.65% 1,256,228 View
Feb 19, 2026 SCHEDULE 13G Point72 Asset Management, L.P. 9.9% 2,057,308 View
Feb 19, 2026 SCHEDULE 13G Point72 Capital Advisors, Inc. 9.9% 2,057,308 View
Feb 19, 2026 SCHEDULE 13G Steven A. Cohen 9.9% 2,057,308 View
Feb 13, 2026 SCHEDULE 13G/A Pfizer Inc. (IRS Identification No.: 13-5315170) 2.3% 277,777 View
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G. Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F). Amendments (/A) can repeat the same holder over time, so rows should not be summed. Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.