O'Brien Patrick — SEC Form 4 filings
SEC reporting owner CIK 1627183. 3 Form 4 filings on record with FilingPulse; latest filed 2026-01-08.
Transaction summary — filings shown
Covers all 3 filings on record, filed 2025-01-07 to 2026-01-08. 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): 15 legs across 2 filings — 86,677 shares, $3,859,408 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 12.
- Largest priced transaction: sale of 13,451 shares @ $62.96 ($846,875) in ARROWHEAD PHARMACEUTICALS, INC., filed 2026-01-05.
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 |
|---|---|---|---|---|---|
| ARROWHEAD PHARMACEUTICALS, INC. (ARWR) | COO | 3 | — | 15 legs · 86,677 sh · $3,859,408 | 12 |
Form 4 filings — O'Brien Patrick
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-01-08 | 4 | ARROWHEAD PHARMACEUTICALS, INC. (ARWR) | Gift (G): 540 @ $0 · Gift (G): 540 @ $0 · Gift (G): 540 @ $0 · Gift (G): 440 @ $0 · Gift (G): 440 @ $0 · Grant/award (A): 75,000 @ $0 | EDGAR |
| 2026-01-05 | 4 | ARROWHEAD PHARMACEUTICALS, INC. (ARWR) | Gift (G): 560 @ $0 · Gift (G): 560 @ $0 · Gift (G): 560 @ $0 · Gift (G): 560 @ $0 · Gift (G): 560 @ $0 · Sale (S): 4,368 @ $61.20 · +11 more | EDGAR |
| 2025-01-07 | 4 | ARROWHEAD PHARMACEUTICALS, INC. (ARWR) | Grant/award (A): 100,000 @ $0 · Sale (S): 19,658 @ $19.69 · Sale (S): 9,526 @ $20.10 · Sale (S): 8,000 @ $19.69 | 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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