Arrowhead Pharmaceuticals, Inc. (ARWR)
Arrowhead Pharmaceuticals, Inc. (ARWR) Insider Trading
Directors, officers and holders of more than 10% of ARWR report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 147 transactions on file: 0 with code P, 32 with code S and 18 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 18, 2026 | PERRY MICHAEL S | Director | S Sale | 11,600 | $87.30 | $1,012,680 |
| Aug 18, 2026 | OLUKOTUN ADEOYE Y | Director | S Sale | 2,000 | $86.96 | $173,920 |
| Jun 15, 2026 | Cohen Matthew Gregory | Director | A Award | 11,882 | Not measured | Not measured |
| May 12, 2026 | Lu Hongbo | Director | S Sale | 2,970 | $76.88 | $228,334 |
| Apr 23, 2026 | Hamilton James C | Chief Medical Officer | S Sale | 10,000 | $75.00 | $750,000 |
| Apr 22, 2026 | Apel Daniel Joseph | Chief Financial Officer | S Sale | 8,730 | $71.92 | $627,862 |
| Apr 22, 2026 | Apel Daniel Joseph | Chief Financial Officer | S Sale | 1,157 | $70.45 | $81,511 |
| Apr 22, 2026 | Apel Daniel Joseph | Chief Financial Officer | S Sale | 3,208 | $70.11 | $224,913 |
| Mar 5, 2026 | Hamilton James C | Chief Medical Officer | S Sale | 10,000 | $64.19 | $641,900 |
| Jan 6, 2026 | O'Brien Patrick | COO | G Gift | 540 | Not measured | Not measured |
| Jan 6, 2026 | Hamilton James C | Chief Medical Officer | A Award | 75,000 | Not measured | Not measured |
| Jan 6, 2026 | Apel Daniel Joseph | Chief Financial Officer | A Award | 75,000 | Not measured | Not measured |
| Jan 6, 2026 | O'Brien Patrick | COO | G Gift | 440 | Not measured | Not measured |
| Jan 6, 2026 | O'Brien Patrick | COO | G Gift | 440 | Not measured | Not measured |
| Jan 6, 2026 | O'Brien Patrick | COO | G Gift | 540 | Not measured | Not measured |
| Jan 6, 2026 | O'Brien Patrick | COO | G Gift | 540 | Not measured | Not measured |
| Jan 6, 2026 | O'Brien Patrick | COO | A Award | 75,000 | Not measured | Not measured |
| Jan 5, 2026 | O'Brien Patrick | COO | S Sale | 900 | $66.01 | $59,409 |
| Jan 5, 2026 | Hamilton James C | Chief Medical Officer | S Sale | 309 | $68.00 | $21,012 |
| Jan 5, 2026 | O'Brien Patrick | COO | S Sale | 5,873 | $62.91 | $369,470 |
| Jan 5, 2026 | O'Brien Patrick | COO | S Sale | 46 | $68.00 | $3,128 |
| Jan 5, 2026 | O'Brien Patrick | COO | S Sale | 313 | $68.00 | $21,284 |
| Jan 5, 2026 | Hamilton James C | Chief Medical Officer | S Sale | 437 | $65.97 | $28,829 |
| Jan 5, 2026 | O'Brien Patrick | COO | S Sale | 900 | $62.25 | $56,025 |
| Jan 5, 2026 | Hamilton James C | Chief Medical Officer | S Sale | 14,792 | $63.01 | $932,044 |
| Jan 5, 2026 | O'Brien Patrick | COO | S Sale | 2,336 | $64.04 | $149,597 |
| Jan 5, 2026 | O'Brien Patrick | COO | S Sale | 2,700 | $64.44 | $173,988 |
| Jan 5, 2026 | O'Brien Patrick | COO | S Sale | 11,842 | $63.84 | $755,993 |
| Jan 5, 2026 | O'Brien Patrick | COO | S Sale | 13,451 | $62.96 | $846,875 |
| Jan 5, 2026 | O'Brien Patrick | COO | S Sale | 4,368 | $61.20 | $267,322 |
| Jan 5, 2026 | Hamilton James C | Chief Medical Officer | S Sale | 1,200 | $64.49 | $77,388 |
| Jan 5, 2026 | O'Brien Patrick | COO | S Sale | 600 | $61.12 | $36,672 |
| Jan 5, 2026 | Hamilton James C | Chief Medical Officer | S Sale | 6,090 | $62.28 | $379,285 |
| Jan 5, 2026 | Hamilton James C | Chief Medical Officer | S Sale | 4,625 | $61.24 | $283,235 |
| Jan 5, 2026 | Hamilton James C | Chief Medical Officer | S Sale | 12,711 | $63.95 | $812,868 |
| Jan 5, 2026 | O'Brien Patrick | COO | S Sale | 6,164 | $62.23 | $383,586 |
| Jan 2, 2026 | Anzalone Christopher Richard | Chief Executive Officer | S Sale | 7,416 | $65.88 | $488,566 |
| Jan 2, 2026 | Anzalone Christopher Richard | Chief Executive Officer | S Sale | 5,771 | $66.39 | $383,137 |
| Dec 31, 2025 | O'Brien Patrick | COO | G Gift | 560 | Not measured | Not measured |
| Dec 31, 2025 | O'Brien Patrick | COO | G Gift | 560 | Not measured | Not measured |
| Dec 31, 2025 | O'Brien Patrick | COO | G Gift | 560 | Not measured | Not measured |
| Dec 31, 2025 | O'Brien Patrick | COO | G Gift | 560 | Not measured | Not measured |
| Dec 31, 2025 | O'Brien Patrick | COO | G Gift | 560 | Not measured | Not measured |
| Dec 29, 2025 | Anzalone Christopher Richard | Chief Executive Officer | M Exercise | 16,545 | $6.15 | $101,752 |
| Dec 29, 2025 | Anzalone Christopher Richard | Chief Executive Officer | S Sale | 35,181 | $69.33 | $2,439,099 |
| Dec 29, 2025 | Anzalone Christopher Richard | Chief Executive Officer | M Exercise | 35,181 | $6.15 | $216,363 |
| Dec 29, 2025 | Anzalone Christopher Richard | Chief Executive Officer | M Exercise | 35,181 | Not measured | Not measured |
| Dec 29, 2025 | Anzalone Christopher Richard | Chief Executive Officer | S Sale | 16,545 | $68.69 | $1,136,476 |
| Dec 29, 2025 | Anzalone Christopher Richard | Chief Executive Officer | M Exercise | 16,545 | Not measured | Not measured |
| Dec 26, 2025 | Ferrari Mauro | Director | S Sale | 7,530 | $70.00 | $527,100 |
The full Form 4 history is on the ARWR company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.