List of insiders holdings for ARROWHEAD PHARMACEUTICALS INC.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | Anzalone Christopher Richard Chief Executive Officer | 2025-04-11 18:20:07 | 3,921,255 0 | 3,921,255 | Form 4 |
| 2 | GIVEN BRUCE D Chief Operating Officer | 2020-04-29 19:19:47 | 2,838,205 0 | 2,838,205 | Form 4 |
| 3 | STEWART R BRUCE Executive Chairman | 2010-03-08 16:34:19 | 872,000 0 | 872,000 | Form 4 |
| 4 | Ekchian Leon President | 2005-11-21 15:31:29 | 750,000 0 | 750,000 | Form 4 |
| 5 | Kingsley Joseph Theodore III Chief Financial Officer | 2007-04-09 16:45:40 | 600,000 0 | 600,000 | Form 4 |
| 6 | Leone Peter Brian VP, Strategic Bus. Initiatives | 2018-10-23 19:59:55 | 564,488 0 | 564,488 | Form 4 |
| 7 | O'Brien Patrick COO and General Counsel | 2025-01-07 21:28:08 | 527,201 0 | 527,201 | Form 4 |
| 8 | Lewis David L. Chief Scientific Officer | 2016-01-04 19:24:56 | 472,500 0 | 472,500 | Form 4 |
| 9 | Myszkowski Kenneth Allen Chief Financial Officer | 2025-01-07 21:27:58 | 455,433 0 | 455,433 | Form 4 |
| 10 | KNOTT DAVID M 10% Owner | 2008-02-13 15:43:14 | 357,143 0 | 357,143 | Form 13G |
| 11 | PHILLIPS JAMES M JR Secretary | 2004-04-16 16:38:33 | 300,000 0 | 300,000 | Form 4 |
| 12 | McDonnel Paul Clayton CFO (former) | 2009-08-24 13:36:31 | 290,000 0 | 290,000 | Form 4 |
| 13 | Hamilton James C Chief Discovery/Trans Medicine | 2025-01-07 21:28:17 | 272,122 0 | 272,122 | Form 4 |
| 14 | RAHN LEROY T Director | 2010-03-08 16:33:33 | 225,000 0 | 225,000 | Form 4 |
| 15 | Li Zhen Snr. VP, Chem and Non-Clin Dev | 2019-01-16 20:24:20 | 201,700 0 | 201,700 | Form 4 |
| 16 | SWIFT ARTHUR L CEO, Unidym Unit | 2007-06-28 15:29:27 | 200,000 0 | 200,000 | Form 3 |
| 17 | San Martin Javier Chief Medical Officer | 2024-01-08 17:16:14 | 198,497 0 | 198,497 | Form 4 |
| 18 | FRYKMAN EDWARD W Director | 2018-01-03 20:06:48 | 148,852 0 | 148,852 | Form 4 |
| 19 | PERRY MICHAEL S Director | 2024-12-20 18:04:45 | 131,490 0 | 131,490 | Form 4 |
| 20 | Oliver Tracie Chief Commercial Officer | 2024-07-03 17:27:36 | 127,107 0 | 127,107 | Form 4 |
| 21 | GIVEN DOUGLAS B Director | 2024-12-18 18:18:48 | 124,167 0 | 124,167 | Form 4 |
| 22 | Hassard James Chief Commercial Officer | 2021-06-24 18:44:06 | 105,750 0 | 105,750 | Form 4 |
| 23 | STAMBAUGH LARRY G CEO, Insert/Calando | 2007-11-13 16:34:54 | 100,000 0 | 100,000 | Form 3 |
| 24 | Ferrari Mauro Director | 2024-12-20 18:04:56 | 77,514 0 | 77,514 | Form 4 |
| 25 | Waddill William D. Director | 2024-12-20 18:05:06 | 57,111 0 | 57,111 | Form 4 |
| 26 | COLLIER CHARLES PATRICK Director | 2004-02-11 11:48:31 | 50,000 0 | 50,000 | Form 3 |
| 27 | Jacobs Edward Lee Subsidiary CEO | 2007-01-22 17:27:23 | 50,000 0 | 50,000 | Form 3 |
| 28 | Lu Hongbo Director | 2024-12-20 18:04:35 | 47,163 0 | 47,163 | Form 4 |
| 29 | McKenney Charles Director | 2015-03-06 19:48:30 | 42,220 0 | 42,220 | Form 4 |
| 30 | Petrovich John George Subsidiary CEO | 2007-01-22 19:12:56 | 40,474 0 | 40,474 | Form 3 |
| 31 | INGRAM DOUGLAS S Director | 2025-02-07 17:57:52 | 38,396 0 | 38,396 | Form 4 |
| 32 | Vakiener Victoria Director | 2024-12-20 18:05:25 | 37,944 0 | 37,944 | Form 4 |
| 33 | De Backer Marianne Director | 2023-01-11 20:38:50 | 35,860 0 | 35,860 | Form 4 |
| 34 | OLUKOTUN ADEOYE Y Director | 2025-01-27 19:22:57 | 35,781 0 | 35,781 | Form 4 |
| 35 | Ching Marshall Robert 10% Owner | 2005-06-27 11:21:24 | 28,666 0 | 28,666 | Form 4 |
| 36 | Bradshaw Curt Chief Scientific Officer | 2020-11-23 17:58:54 | 0 0 | 0 | Form 4 |