Q32 Bio Inc. (QTTB) ownership: Top institutional holder: ORBIMED ADVISORS LLC ($14.46M). Insider activity: Net Seller (0 buys, 20 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| ORBIMED ADVISORS LLC | 2252987.00 | $14.46M | 2026-03-31 |
| Atlas Venture Life Science Advisors, LLC | 2092106.00 | $13.43M | 2026-03-31 |
| Opaleye Management Inc. | 1256228.00 | $8.06M | 2026-03-31 |
| Carlyle Group Inc. | 1102741.00 | $7.08M | 2026-03-31 |
| Point72 Asset Management, L.P. | 76685.00 | $3.42M | 2024-09-30 |
| ARCH Venture Management, LLC | 320482.00 | $2.06M | 2026-03-31 |
| ACORN CAPITAL ADVISORS, LLC | 315052.00 | $2.02M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 306401.00 | $1.97M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-07-16 | |
| Sell | null | 2026-07-16 | |
| Sell | null | 2026-07-16 | |
| Sell | null | 2026-06-30 | |
| Sell | null | 2026-06-30 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 | |
| Sell | null | 2026-06-12 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.