SEC Form 4/A · accession 0001193125-26-310965
Q32 Bio Inc. · QTTB
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
This is an amendment (Form 4/A). It replaces an earlier filing for the same period.
Reporting owner
Mary Thistle
Director
Period of report
Jun 12, 2026
Accepted (ET)
Jul 21, 2026 · 8:22 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001661998
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (Right to Buy)F1,F2 | $12.64 | Jun 12, 2026 | A | 10,826 | A | — | Jun 11, 2036 | Common Stock | 10,826 | 10,826 | D |
Explanation of responses
- F1This Form 4 amendment is being filed solely to amend the Form 4 filed on June 16, 2026 to correct the number of options awarded to the Reporting Person on June 12, 2026.
- F2The shares underlying this option shall vest and become exercisable in full upon the earlier of (i) June 12, 2027 or (ii) the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service on such vesting date.