ARWR
Arrowhead Pharmaceuticals, Inc.
NASDAQ · Healthcare · Biotechnology · US
$86.34
−0.17%0
Insider buys (3m)
2
Insider sells (3m)
-$1.2M
Net value (3m)
+15.5%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Aug 20, 2026 | OLUKOTUN ADEOYE Y · director | Sale | 2,000 | $87 |
| Aug 20, 2026 | PERRY MICHAEL S · director | Sale | 11,600 | $87 |
| Jun 17, 2026 | Cohen Matthew Gregory · director | A-Award | 11,882 | $0.00 |
| May 14, 2026 | Lu Hongbo · director | Sale | 2,970 | $77 |
| Apr 24, 2026 | Apel Daniel Joseph · officer: Chief Financial Officer | Sale | 8,730 | $72 |
| Apr 24, 2026 | Apel Daniel Joseph · officer: Chief Financial Officer | Sale | 1,157 | $70 |
| Apr 24, 2026 | Hamilton James C · officer: Chief Medical Officer | Sale | 10,000 | $75 |
| Apr 24, 2026 | Apel Daniel Joseph · officer: Chief Financial Officer | Sale | 3,208 | $70 |
| Mar 9, 2026 | Hamilton James C · officer: Chief Medical Officer | Sale | 10,000 | $64 |
| Jan 8, 2026 | O'Brien Patrick · officer: COO | A-Award | 75,000 | $0.00 |
| Jan 8, 2026 | Hamilton James C · officer: Chief Medical Officer | A-Award | 75,000 | $0.00 |
| Jan 8, 2026 | Apel Daniel Joseph · officer: Chief Financial Officer | A-Award | 75,000 | $0.00 |
| Jan 5, 2026 | O'Brien Patrick · officer: COO | Sale | 5,873 | $63 |
| Jan 5, 2026 | O'Brien Patrick · officer: COO | Sale | 4,368 | $61 |
| Jan 5, 2026 | O'Brien Patrick · officer: COO | Sale | 600 | $61 |
| Jan 5, 2026 | Anzalone Christopher Richard · director, officer: Chief Executive Officer | Sale | 5,771 | $66 |
| Jan 5, 2026 | Anzalone Christopher Richard · director, officer: Chief Executive Officer | Sale | 7,416 | $66 |
| Jan 5, 2026 | Hamilton James C · officer: Chief Medical Officer | Sale | 309 | $68 |
| Jan 5, 2026 | Hamilton James C · officer: Chief Medical Officer | Sale | 1,200 | $64 |
| Jan 5, 2026 | Hamilton James C · officer: Chief Medical Officer | Sale | 12,711 | $64 |
| Jan 5, 2026 | O'Brien Patrick · officer: COO | Sale | 900 | $66 |
| Jan 5, 2026 | O'Brien Patrick · officer: COO | Sale | 2,700 | $64 |
| Jan 5, 2026 | Hamilton James C · officer: Chief Medical Officer | Sale | 14,792 | $63 |
| Jan 5, 2026 | O'Brien Patrick · officer: COO | Sale | 13,451 | $63 |
| Jan 5, 2026 | Hamilton James C · officer: Chief Medical Officer | Sale | 437 | $66 |
| Jan 5, 2026 | O'Brien Patrick · officer: COO | Sale | 313 | $68 |
| Jan 5, 2026 | O'Brien Patrick · officer: COO | Sale | 46 | $68 |
| Jan 5, 2026 | O'Brien Patrick · officer: COO | Sale | 11,842 | $64 |
| Jan 5, 2026 | O'Brien Patrick · officer: COO | Sale | 6,164 | $62 |
| Jan 5, 2026 | Hamilton James C · officer: Chief Medical Officer | Sale | 6,090 | $62 |
Institutional positioning
13F filings over the trailing two quarters
New 231Increased 323Reduced 287Sold out 58
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Reduced | 18,161,519 | May 13, 2026 |
| BlackRock, Inc. | Reduced | 14,830,553 | Aug 7, 2026 |
| Avoro Capital Advisors LLC | Increased | 11,355,555 | Aug 14, 2026 |
| AVORO CAPITAL ADVISORS LLC | Reduced | 10,699,999 | May 15, 2026 |
| AVORO CAPITAL ADVISORS LLC | Reduced | 10,625,000 | Mar 16, 2026 |
| FMR LLC | Increased | 8,039,804 | Aug 13, 2026 |
| FMR LLC | Increased | 7,266,652 | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 7,146,136 | May 8, 2026 |
| STATE STREET CORP | Increased | 6,496,130 | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 6,351,355 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 6,110,953 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 6,032,416 | May 15, 2026 |
| STATE STREET CORP | Reduced | 5,694,640 | Aug 7, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 4,278,828 | May 15, 2026 |
| NORGES BANK | New Position | 3,896,536 | Aug 12, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Aug 20, 2026