Xu Diyong — SEC Form 4 filings
SEC reporting owner CIK 1995088. 6 Form 4 filings on record with FilingPulse; latest filed 2026-07-21.
Transaction summary — filings shown
Covers all 6 filings on record, filed 2024-03-27 to 2026-07-21. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 2 legs across 1 filing — 1,875,000 shares, $15,000,000 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 6.
- Largest priced transaction: purchase of 1,250,000 shares @ $8.00 ($10,000,000) in Q32 Bio Inc., filed 2026-06-01.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Q32 Bio Inc. (QTTB) | Director, 10% owner | 6 | 2 legs · 1,875,000 sh · $15,000,000 | — | 6 |
Form 4 filings — Xu Diyong
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-07-21 | 4/A | Q32 Bio Inc. (QTTB) | Grant/award (A): 10,826 (derivative) @ $0 | EDGAR |
| 2026-06-16 | 4 | Q32 Bio Inc. (QTTB) | Grant/award (A): 9,810 (derivative) @ $0 | EDGAR |
| 2026-06-01 | 4 | Q32 Bio Inc. (QTTB) | Purchase (P): 1,250,000 @ $8 · Purchase (P): 625,000 @ $8 | EDGAR |
| 2025-10-27 | 4 | Q32 Bio Inc. (QTTB) | Grant/award (A): 53,521 (derivative) @ $0 | EDGAR |
| 2025-02-26 | 4 | Q32 Bio Inc. (QTTB) | Disposition to issuer (D): 12,767 (derivative) @ $0 · Grant/award (A): 12,767 (derivative) @ $0 | EDGAR |
| 2024-03-27 | 4 | Q32 Bio Inc. (QTTB) | Grant/award (A): 12,767 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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