12 insiders reported 104 Form 4 transactions for ARROWHEAD PHARMACEUTICALS, INC. (ARWR) over the past 18 months (most recent 2026-08-20). Recent activity: OLUKOTUN ADEOYE Y (Director) Sell 2,000 shares, PERRY MICHAEL S (Director) Sell 11,600 shares, Cohen Matthew Gregory (Director) Buy 11,882 shares, Lu Hongbo (Director) Sell 2,970 shares, Hamilton James C (Chief Medical Officer) Sell 10,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | OLUKOTUN ADEOYE Y | Director | Sell | 2,000 | $173,920 |
| 2026-08-20 | PERRY MICHAEL S | Director | Sell | 11,600 | $1.0M |
| 2026-06-17 | Cohen Matthew Gregory | Director | Buy | 11,882 | $0 |
| 2026-05-14 | Lu Hongbo | Director | Sell | 2,970 | $228,334 |
| 2026-04-24 | Hamilton James C | Chief Medical Officer | Sell | 10,000 | $750,000 |
| 2026-04-24 | Apel Daniel Joseph | Chief Financial Officer | Sell | 3,208 | $224,913 |
| 2026-04-24 | Apel Daniel Joseph | Chief Financial Officer | Sell | 1,157 | $81,511 |
| 2026-04-24 | Apel Daniel Joseph | Chief Financial Officer | Sell | 8,730 | $627,862 |
| 2026-03-09 | Hamilton James C | Chief Medical Officer | Sell | 10,000 | $641,900 |
| 2026-01-08 | O'Brien Patrick | COO | Sell | 540 | $0 |
| 2026-01-08 | O'Brien Patrick | COO | Sell | 540 | $0 |
| 2026-01-08 | O'Brien Patrick | COO | Sell | 540 | $0 |
| 2026-01-08 | Apel Daniel Joseph | Chief Financial Officer | Buy | 75,000 | $0 |
| 2026-01-08 | O'Brien Patrick | COO | Sell | 440 | $0 |
| 2026-01-08 | O'Brien Patrick | COO | Sell | 440 | $0 |
| 2026-01-08 | O'Brien Patrick | COO | Buy | 75,000 | $0 |
| 2026-01-08 | Hamilton James C | Chief Medical Officer | Buy | 75,000 | $0 |
| 2026-01-05 | O'Brien Patrick | COO | Sell | 560 | $0 |
| 2026-01-05 | O'Brien Patrick | COO | Sell | 560 | $0 |
| 2026-01-05 | O'Brien Patrick | COO | Sell | 560 | $0 |
| 2026-01-05 | O'Brien Patrick | COO | Sell | 560 | $0 |
| 2026-01-05 | O'Brien Patrick | COO | Sell | 560 | $0 |
| 2026-01-05 | O'Brien Patrick | COO | Sell | 4,368 | $267,322 |
| 2026-01-05 | O'Brien Patrick | COO | Sell | 6,164 | $383,586 |
| 2026-01-05 | O'Brien Patrick | COO | Sell | 13,451 | $846,875 |
Source: SEC Form 4 filings · as of 2026-08-20