GRAYZEL DAVID S.
SEC insider (Form 3/4/5 filer). CIK 0001732786. Director at Q32 Bio Inc. (QTTB). 11 reported Form 4/5 transactions since Sep 2024; latest on Jun 12, 2026. Located in WALTHAM, MA.
Companies GRAYZEL DAVID S. has filed insider reports for
- Q32 Bio Inc. (QTTB): Director
GRAYZEL DAVID S.
CIK: 0001732786
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Q32 Bio Inc.
Discretionary Trading P&L
Holdings
Transaction History (11 total)
- Jun 12, 2026QTTB
Q32 Bio Inc.
AwardDirectStock Option (Right to Buy)
10.8K shares- - Jun 12, 2026QTTB
Q32 Bio Inc.
AwardDirectStock Option (Right to Buy)
9.8K shares- - Jan 15, 2026QTTB
Q32 Bio Inc.
AwardDirectStock Option (Right to Buy)
16.4K shares at avg. $2.75- - Oct 23, 2025QTTB
Q32 Bio Inc.
AwardDirectStock Option (Right to Buy)
53.5K shares- - Feb 24, 2025QTTB
Q32 Bio Inc.
AwardDirectStock Option (Right to Buy)
2.6K shares- - Feb 24, 2025QTTB
Q32 Bio Inc.
DispositionDirectStock Option (Right to Buy)
18.6K shares- - Feb 24, 2025QTTB
Q32 Bio Inc.
AwardDirectStock Option (Right to Buy)
18.6K shares- - Feb 24, 2025QTTB
Q32 Bio Inc.
DispositionDirectStock Option (Right to Buy)
12.8K shares- - Feb 24, 2025QTTB
Q32 Bio Inc.
AwardDirectStock Option (Right to Buy)
12.8K shares- - Feb 24, 2025QTTB
Q32 Bio Inc.
DispositionDirectStock Option (Right to Buy)
2.6K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jun 12, 2026 | QTTB Q32 Bio Inc. | Award Stock Option (Right to Buy) | 10,826 | - | - | Direct |
| Jun 12, 2026 | QTTB Q32 Bio Inc. | Award Stock Option (Right to Buy) | 9,810 | - | - | Direct |
| Jan 15, 2026 | QTTB Q32 Bio Inc. | Award Stock Option (Right to Buy) | 16,363 | $2.75 | - | Direct |
| Oct 23, 2025 | QTTB Q32 Bio Inc. | Award Stock Option (Right to Buy) | 53,521 | - | - | Direct |
| Feb 24, 2025 | QTTB Q32 Bio Inc. | Award Stock Option (Right to Buy) | 2,569 | - | - | Direct |
| Feb 24, 2025 | QTTB Q32 Bio Inc. | Disposition Stock Option (Right to Buy) | 18,595 | - | - | Direct |
| Feb 24, 2025 | QTTB Q32 Bio Inc. | Award Stock Option (Right to Buy) | 18,595 | - | - | Direct |
| Feb 24, 2025 | QTTB Q32 Bio Inc. | Disposition Stock Option (Right to Buy) | 12,767 | - | - | Direct |
| Feb 24, 2025 | QTTB Q32 Bio Inc. | Award Stock Option (Right to Buy) | 12,767 | - | - | Direct |
| Feb 24, 2025 | QTTB Q32 Bio Inc. | Disposition Stock Option (Right to Buy) | 2,569 | - | - | Direct |
1-10 of 11 transactions