TZIANABOS ARTHUR — SEC Form 4 filings
SEC reporting owner CIK 1586226. 12 Form 4 filings on record with FilingPulse; latest filed 2026-07-21.
Transaction summary — filings shown
Covers all 12 filings on record, filed 2024-02-15 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): none reported.
- Open-market sales (code S, non-derivative): 3 legs across 3 filings — 17,657 shares, $188,073 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 21.
- Largest priced transaction: sale of 4,355 shares @ $40.00 ($174,214) in Stoke Therapeutics, Inc., filed 2026-03-12.
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 |
|---|---|---|---|---|---|
| Stoke Therapeutics, Inc. (STOK) | Director | 5 | — | 1 leg · 4,355 sh · $174,214 | 7 |
| Q32 Bio Inc. (QTTB) | Director | 7 | — | 2 legs · 13,302 sh · $13,858 | 14 |
Form 4 filings — TZIANABOS ARTHUR
| 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 |
| 2026-06-05 | 4 | Stoke Therapeutics, Inc. (STOK) | Grant/award (A): 17,786 (derivative) @ $0 | EDGAR |
| 2026-03-12 | 4 | Stoke Therapeutics, Inc. (STOK) | Option exercise (M): 3,955 @ $8.33 · Sale (S): 4,355 @ $40.00 · Option exercise (M): 3,955 (derivative) @ $0 | EDGAR |
| 2025-10-27 | 4 | Q32 Bio Inc. (QTTB) | Grant/award (A): 53,521 (derivative) @ $0 | EDGAR |
| 2025-03-20 | 4 | Stoke Therapeutics, Inc. (STOK) | Grant/award (A): 122,651 (derivative) @ $0 | EDGAR |
| 2025-02-27 | 4 | Q32 Bio Inc. (QTTB) | Disposition to issuer (D): 25,674 (derivative) @ $0 · Grant/award (A): 25,674 (derivative) @ $0 · Disposition to issuer (D): 12,767 (derivative) @ $0 · Grant/award (A): 12,767 (derivative) @ $0 | EDGAR |
| 2024-08-14 | 4 | Q32 Bio Inc. (QTTB) | Option exercise (M): 1,095 · Sale (S): 265 @ $24.20 · Option exercise (M): 1,095 (derivative) @ $0 | EDGAR |
| 2024-06-07 | 4 | Stoke Therapeutics, Inc. (STOK) | Grant/award (A): 7,639 (derivative) @ $0 | EDGAR |
| 2024-03-27 | 4 | Q32 Bio Inc. (QTTB) | Grant/award (A): 12,767 (derivative) @ $0 | EDGAR |
| 2024-02-15 | 4 | Homology Medicines, Inc. (FIXX) | Option exercise (M): 14,280 · Option exercise (M): 19,140 · Sale (S): 13,037 @ $0.57 · Option exercise (M): 14,280 (derivative) @ $0 · Option exercise (M): 19,140 (derivative) @ $0 | EDGAR |
| 2024-02-15 | 4 | Stoke Therapeutics, Inc. (STOK) | Option exercise (M): 31,739 @ $2.19 · Option exercise (M): 31,739 (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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