Insider · CIK 0001732786
David S. Grayzel
Files at QTTB (Q32 Bio Inc.). First filing -, latest -.
In brief
David S. Grayzel files SEC Form 4 as director at QTTB (Q32 Bio Inc.). No open-market trade is on file; the transactions below are grants, exercises and other rows that carry no view on the price.
A track record needs three past buys with six months of prices behind them; David S. Grayzel has 0, so none is measured yet.
Signals
This insider’s open-market buys and sells, scored.
Transactions
Every row this insider has filed, 11 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jun 12, 2026 | QTTB Q32 Bio Inc. | AGrant or award Stock Option (Right to Buy)derivative | +10,826 | $0.00 | $0 | 10,826 | Jul 21, 2026 |
| Jun 12, 2026 | QTTB Q32 Bio Inc. | AGrant or award Stock Option (Right to Buy)derivative | +9,810 | $0.00 | $0 | 9,810 | Jun 16, 2026 |
| Jan 15, 2026 | QTTB Q32 Bio Inc. | AGrant or award Stock Option (Right to Buy)derivative | +16,363 | $2.75 | $45k | 16,363 | Jan 30, 2026 |
| Oct 23, 2025 | QTTB Q32 Bio Inc. | AGrant or award Stock Option (Right to Buy)derivative | +53,521 | $0.00 | $0 | 53,521 | Oct 27, 2025 |
| Feb 24, 2025 | QTTB Q32 Bio Inc. | DDisposition to issuer Stock Option (Right to Buy)derivative | -12,767 | $0.00 | $0 | 0 | Feb 26, 2025 |
| Feb 24, 2025 | QTTB Q32 Bio Inc. | AGrant or award Stock Option (Right to Buy)derivative | +12,767 | $0.00 | $0 | 12,767 | Feb 26, 2025 |
| Feb 24, 2025 | QTTB Q32 Bio Inc. | DDisposition to issuer Stock Option (Right to Buy)derivative | -2,569 | $0.00 | $0 | 0 | Feb 26, 2025 |
| Feb 24, 2025 | QTTB Q32 Bio Inc. | AGrant or award Stock Option (Right to Buy)derivative | +2,569 | $0.00 | $0 | 2,569 | Feb 26, 2025 |
| Jan 15, 2025 | QTTB Q32 Bio Inc. | AGrant or award Stock Option (Right to Buy)derivative | +18,595 | $0.00 | $0 | 18,595 | Feb 26, 2025 |
| Feb 24, 2025 | QTTB Q32 Bio Inc. | DDisposition to issuer Stock Option (Right to Buy)derivative | -18,595 | $0.00 | $0 | 0 | Feb 26, 2025 |
| Feb 24, 2025 | QTTB Q32 Bio Inc. | AGrant or award Stock Option (Right to Buy)derivative | +18,595 | $0.00 | $0 | 18,595 | Feb 26, 2025 |
Questions about David S. Grayzel
Answered from the filings on this page, as of the latest one.
Is David S. Grayzel buying or selling?
David S. Grayzel has no open-market buy or sell on SEC Form 4; the filings on record are grants, exercises and other transactions.
How did David S. Grayzel's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and David S. Grayzel has 0.
Where does David S. Grayzel file Form 4?
David S. Grayzel has filed Form 4 at QTTB (Q32 Bio Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.