ARROWHEAD PHARMACEUTICALS, INC. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Anzalone Christopher Richard | Chief Executive Officer | Option Exercise | 35,181 | $6.15 | $216,363 | 3,841,107 | Dec 29, 2025 |
| Ferrari Mauro | — | Sale | 7,530 | $70.00 | $527,100 | 69,053 | Dec 26, 2025 |
| Anzalone Christopher Richard | Chief Executive Officer | Sale | 10,012 | $68.33 | $684,120 | 3,808,500 | Dec 22, 2025 |
| Waddill William D. | — | Sale | 500 | $68.53 | $34,265 | 56,563 | Dec 19, 2025 |
| Vakiener Victoria | — | Sale | 5,281 | $67.97 | $358,950 | 37,683 | Dec 19, 2025 |
| OLUKOTUN ADEOYE Y | — | Sale | 827 | $68.48 | $56,633 | 33,600 | Dec 19, 2025 |
| Anzalone Christopher Richard | Chief Executive Officer | Sale | 46,287 | $63.55 | $2,941,539 | 3,870,670 | Dec 17, 2025 |
| Ferrari Mauro | — | Award / Grant | 7,819 | — | — | 76,583 | Dec 16, 2025 |
| Lu Hongbo | — | Award / Grant | 7,819 | — | — | 54,982 | Dec 16, 2025 |
| PERRY MICHAEL S | — | Award / Grant | 7,819 | — | — | 123,059 | Dec 16, 2025 |
| Vakiener Victoria | — | Award / Grant | 7,819 | — | — | 45,763 | Dec 16, 2025 |
| INGRAM DOUGLAS S | — | Award / Grant | 7,819 | — | — | 46,215 | Dec 16, 2025 |
| OLUKOTUN ADEOYE Y | — | Award / Grant | 7,819 | — | — | 43,600 | Dec 16, 2025 |
| Waddill William D. | — | Award / Grant | 7,819 | — | — | 64,930 | Dec 16, 2025 |
| Anzalone Christopher Richard | Chief Executive Officer | Sale | 6,661 | $64.29 | $428,236 | 3,922,644 | Dec 16, 2025 |
| PERRY MICHAEL S | — | Sale | 16,250 | $61.03 | $991,738 | 115,240 | Dec 5, 2025 |
| Ferrari Mauro | — | Sale | 8,750 | $56.39 | $493,413 | 68,764 | Nov 28, 2025 |
| Hamilton James C | Chief Medical Officer | Sale | 20,000 | $35.00 | $700,000 | 212,122 | Oct 1, 2025 |
| Hamilton James C | Chief Medical Officer | Sale | 15,000 | $30.00 | $450,000 | 232,122 | Sep 12, 2025 |
| Hamilton James C | Chief Medical Officer | Sale | 15,000 | $25.00 | $375,000 | 247,122 | Sep 2, 2025 |
| Hamilton James C | Chief Medical Officer | Sale | 9,389 | $20.00 | $187,780 | 262,122 | Aug 13, 2025 |
| Anzalone Christopher Richard | Chief Executive Officer | Sale | 35,305 | $9.93 | $350,579 | 4,027,072 | Apr 11, 2025 |
| Anzalone Christopher Richard | Chief Executive Officer | Award / Grant | 340,000 | — | — | 4,113,802 | Mar 13, 2025 |
| Anzalone Christopher Richard | Chief Executive Officer | Sale | 133,333 | $17.02 | $2,269,328 | 3,773,802 | Mar 4, 2025 |
| Anzalone Christopher Richard | Chief Executive Officer | Award / Grant | 9,550 | $20.10 | $191,955 | 3,773,802 | Feb 7, 2025 |
| INGRAM DOUGLAS S | — | Award / Grant | 38,396 | $20.09 | $771,376 | 38,396 | Feb 6, 2025 |
| OLUKOTUN ADEOYE Y | — | Sale | 959 | $21.00 | $20,139 | 35,781 | Jan 23, 2025 |
| Hamilton James C | Chief Discovery/Trans Medicine | Award / Grant | 100,000 | — | — | 304,851 | Jan 6, 2025 |
| O'Brien Patrick | COO and General Counsel | Award / Grant | 100,000 | — | — | 564,385 | Jan 6, 2025 |
| Myszkowski Kenneth Allen | Chief Financial Officer | Sale | 8,000 | $19.70 | $157,600 | 465,433 | Jan 6, 2025 |
| Anzalone Christopher Richard | Chief Executive Officer | Sale | 11,520 | $19.05 | $219,456 | 3,764,252 | Jan 2, 2025 |
| OLUKOTUN ADEOYE Y | — | Sale | 2,850 | $20.00 | $57,000 | 36,740 | Dec 27, 2024 |
| Anzalone Christopher Richard | Chief Executive Officer | Sale | 12,563 | $19.59 | $246,109 | 3,775,772 | Dec 23, 2024 |
| Vakiener Victoria | — | Award / Grant | 16,733 | $22.99 | $384,692 | 37,944 | Dec 18, 2024 |
| OLUKOTUN ADEOYE Y | — | Award / Grant | 16,733 | $22.99 | $384,692 | 39,590 | Dec 18, 2024 |
| Waddill William D. | — | Award / Grant | 16,733 | $22.99 | $384,692 | 57,111 | Dec 18, 2024 |
| Ferrari Mauro | — | Award / Grant | 16,733 | $22.99 | $384,692 | 77,514 | Dec 18, 2024 |
| PERRY MICHAEL S | — | Award / Grant | 16,733 | $22.99 | $384,692 | 131,490 | Dec 18, 2024 |
| Lu Hongbo | — | Award / Grant | 16,733 | $22.99 | $384,692 | 47,163 | Dec 18, 2024 |
| Anzalone Christopher Richard | Chief Executive Officer | Award / Grant | 100,000 | — | — | 3,788,335 | Dec 18, 2024 |
| GIVEN DOUGLAS B | — | Sale | 5,000 | $21.90 | $109,500 | 124,714 | Dec 17, 2024 |
| Waddill William D. | — | Sale | 3,747 | $22.04 | $82,584 | 40,378 | Dec 16, 2024 |
| Vakiener Victoria | — | Sale | 8,994 | $21.91 | $197,059 | 21,211 | Dec 16, 2024 |
| Oliver Tracie | Chief Commercial Officer | Sale | 9,394 | $25.28 | $237,480 | 127,107 | Jul 2, 2024 |
| Vakiener Victoria | — | Sale | 1,799 | $23.31 | $41,935 | 30,205 | May 2, 2024 |
| Hamilton James C | Chief Discovery/Trans Medicine | Sale | 6,000 | $28.03 | $168,180 | 204,851 | Apr 1, 2024 |
| Lu Hongbo | — | Purchase | 850 | $27.50 | $23,375 | 34,930 | Mar 22, 2024 |
| Lu Hongbo | — | Purchase | 1,000 | $28.00 | $28,000 | 32,680 | Mar 20, 2024 |
| Myszkowski Kenneth Allen | Chief Financial Officer | Sale | 40,000 | $35.19 | $1,407,600 | 400,600 | Mar 6, 2024 |
| Anzalone Christopher Richard | Chief Executive Officer | Sale | 37,769 | $32.16 | $1,214,651 | 3,734,778 | Jan 31, 2024 |