Boyce Sarah — SEC Form 4 filings
SEC reporting owner CIK 1629383. 27 Form 4 filings on record with FilingPulse; latest filed 2026-06-26.
Transaction summary — filings shown
Covers all 27 filings on record, filed 2024-01-23 to 2026-06-26. 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): 23 legs across 18 filings — 877,801 shares, $30,724,158 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 54.
- Largest priced transaction: sale of 164,233 shares @ $40.08 ($6,581,802) in Avidity Biosciences, Inc., filed 2024-06-14.
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 |
|---|---|---|---|---|---|
| Avidity Biosciences, Inc. (RNAM) | President and CEO, Director | 21 | — | 23 legs · 877,801 sh · $30,724,158 | 45 |
| OmniAb, Inc. (OABI) | Director | 2 | — | — | 5 |
| Contineum Therapeutics, Inc. (CTNM) | Director | 3 | — | — | 3 |
| Atrium Therapeutics, Inc. (RNA) | Director | 1 | — | — | 1 |
Form 4 filings — Boyce Sarah
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-26 | 4 | Contineum Therapeutics, Inc. (CTNM) | Grant/award (A): 19,000 (derivative) @ $0 | EDGAR |
| 2026-03-02 | 4 | Atrium Therapeutics, Inc. (RNA) | Grant/award (A): 20,000 (derivative) @ $0 | EDGAR |
| 2026-02-27 | 4 | Avidity Biosciences, Inc. (RNAM) | Disposition to issuer (D): 474,861 · Disposition to issuer (D): 386,015 (derivative) · Disposition to issuer (D): 300,000 (derivative) · Disposition to issuer (D): 425,000 (derivative) · Disposition to issuer (D): 400,000 (derivative) · Disposition to issuer (D): 200,000 (derivative) · +2 more | EDGAR |
| 2026-01-23 | 4 | Avidity Biosciences, Inc. (RNA) | Sale (S): 6,394 @ $72.45 · Sale (S): 7,993 @ $72.45 | EDGAR |
| 2026-01-09 | 4 | Avidity Biosciences, Inc. (RNA) | Sale (S): 8,576 @ $72.23 | EDGAR |
| 2025-12-19 | 4 | Avidity Biosciences, Inc. (RNA) | Grant/award (A): 31,000 @ $0 · Tax withholding (F): 15,742 @ $71.87 · Gift (G): 29,159 @ $0 | EDGAR |
| 2025-09-05 | 4 | Avidity Biosciences, Inc. (RNA) | Option exercise (M): 50,000 @ $1.24 · Sale (S): 50,000 @ $49.95 · Option exercise (M): 50,000 (derivative) @ $0 | EDGAR |
| 2025-08-29 | 4 | Avidity Biosciences, Inc. (RNA) | Option exercise (M): 25,000 @ $1.24 · Sale (S): 25,000 @ $49.39 · Option exercise (M): 25,000 (derivative) @ $0 | EDGAR |
| 2025-06-26 | 4 | Contineum Therapeutics, Inc. (CTNM) | Grant/award (A): 14,750 (derivative) @ $0 | EDGAR |
| 2025-03-21 | 4 | Avidity Biosciences, Inc. (RNA) | Sale (S): 31,540 @ $31.06 | EDGAR |
| 2025-01-23 | 4 | Avidity Biosciences, Inc. (RNA) | Sale (S): 4,738 @ $28.59 · Sale (S): 5,659 @ $28.59 | EDGAR |
| 2025-01-08 | 4 | Avidity Biosciences, Inc. (RNA) | Grant/award (A): 82,500 @ $0 · Grant/award (A): 165,000 (derivative) @ $0 | EDGAR |
| 2024-12-19 | 4 | Avidity Biosciences, Inc. (RNA) | Sale (S): 31,855 @ $32.66 | EDGAR |
| 2024-09-23 | 4 | Avidity Biosciences, Inc. (RNA) | Grant/award (A): 62,500 @ $0 · Sale (S): 32,880 @ $44.00 · Grant/award (A): 62,500 @ $0 | EDGAR |
| 2024-08-07 | 4 | Avidity Biosciences, Inc. (RNA) | Option exercise (M): 28,000 @ $1.24 · Sale (S): 28,000 @ $43.35 · Option exercise (M): 28,000 (derivative) @ $0 | EDGAR |
| 2024-07-11 | 4 | Avidity Biosciences, Inc. (RNA) | Option exercise (M): 28,000 @ $1.24 · Sale (S): 28,000 @ $39.93 · Option exercise (M): 28,000 (derivative) @ $0 | EDGAR |
| 2024-06-24 | 4 | Contineum Therapeutics, Inc. (CTNM) | Grant/award (A): 29,500 (derivative) @ $0 | EDGAR |
| 2024-06-21 | 4 | OmniAb, Inc. (OABI) | Option exercise (M): 20,000 · Option exercise (M): 20,000 (derivative) @ $0 · Grant/award (A): 20,000 (derivative) @ $0 · Grant/award (A): 40,000 (derivative) @ $0 | EDGAR |
| 2024-06-20 | 4 | Avidity Biosciences, Inc. (RNA) | Grant/award (A): 62,500 @ $0 · Sale (S): 32,074 @ $39.13 · Grant/award (A): 62,500 @ $0 | EDGAR |
| 2024-06-14 | 4 | Avidity Biosciences, Inc. (RNA) | Option exercise (M): 100,000 @ $1.24 · Sale (S): 100,000 @ $35.73 · Option exercise (M): 164,233 @ $1.24 · Sale (S): 164,233 @ $40.08 · Option exercise (M): 35,767 @ $1.24 · Sale (S): 35,767 @ $40.08 · +3 more | EDGAR |
| 2024-06-05 | 4 | Avidity Biosciences, Inc. (RNA) | Option exercise (M): 28,000 @ $1.24 · Sale (S): 28,000 @ $27.42 · Option exercise (M): 28,000 (derivative) @ $0 | EDGAR |
| 2024-05-07 | 4 | Avidity Biosciences, Inc. (RNA) | Option exercise (M): 28,000 @ $1.24 · Sale (S): 28,000 @ $25.54 · Option exercise (M): 28,000 (derivative) @ $0 | EDGAR |
| 2024-04-23 | 4/A | OmniAb, Inc. (OABI) | Grant/award (A): 39,628 | EDGAR |
| 2024-04-03 | 4 | Avidity Biosciences, Inc. (RNA) | Option exercise (M): 28,000 @ $1.24 · Sale (S): 28,000 @ $26.25 · Option exercise (M): 28,000 (derivative) @ $0 | EDGAR |
| 2024-03-12 | 4 | Avidity Biosciences, Inc. (RNA) | Option exercise (M): 84,000 @ $1.24 · Sale (S): 84,000 @ $21.39 · Option exercise (M): 28,000 @ $1.24 · Sale (S): 28,000 @ $22.63 · Option exercise (M): 84,000 (derivative) @ $0 · Option exercise (M): 28,000 (derivative) @ $0 | EDGAR |
| 2024-03-05 | 4 | Avidity Biosciences, Inc. (RNA) | Option exercise (M): 84,000 @ $1.24 · Sale (S): 84,000 @ $20.13 · Option exercise (M): 84,000 (derivative) @ $0 | EDGAR |
| 2024-01-23 | 4 | Avidity Biosciences, Inc. (RNA) | Grant/award (A): 62,500 @ $0 · Sale (S): 5,092 @ $10.13 · Grant/award (A): 300,000 (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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