Hamilton James C, Chief Medical Officer of Arrowhead Pharmaceuticals ($ARWR), sold nearly $4.9 million in company shares across 13 open market transactions over the past year. His most recent sale occurred on March 5, 2026. These sales rank him 1,965th among 11,678 insiders by total value sold, below the average of $8.6 million per insider and 6.4 transactions. He made no open market purchases in this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 5, 2026 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | S | Common Stock | 10000 | $64.19 | 236,958.0000 | 140,706,000 | 4.05% | 0.01% |
| Jan. 6, 2026 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | A | Common Stock | 75000 | $0.00 | 246,958.0000 | 140,706,000 | 43.62% | 0.05% |
| Jan. 5, 2026 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | S | Common Stock | 309 | $68.00 | 171,958.0000 | 140,706,000 | 0.18% | 0.00% |
| Jan. 5, 2026 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | S | Common Stock | 437 | $65.97 | 172,267.0000 | 140,706,000 | 0.25% | 0.00% |
| Jan. 5, 2026 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | S | Common Stock | 1200 | $64.49 | 172,704.0000 | 140,706,000 | 0.69% | 0.00% |
| Jan. 5, 2026 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | S | Common Stock | 12711 | $63.95 | 173,904.0000 | 140,706,000 | 6.81% | 0.01% |
| Jan. 5, 2026 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | S | Common Stock | 6090 | $62.28 | 201,407.0000 | 140,706,000 | 2.93% | 0.00% |
| Jan. 5, 2026 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | S | Common Stock | 14792 | $63.01 | 186,615.0000 | 140,706,000 | 7.34% | 0.01% |
| Jan. 5, 2026 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | S | Common Stock | 4625 | $61.24 | 207,497.0000 | 140,706,000 | 2.18% | 0.00% |
| Oct. 1, 2025 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | S | Common Stock | 20000 | $35.00 | 212,122.0000 | 133,758,000 | 8.62% | 0.01% |
| Sept. 12, 2025 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | S | Common Stock | 15000 | $30.00 | 232,122.0000 | 139,039,000 | 6.07% | 0.01% |
| Sept. 2, 2025 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | S | Common Stock | 15000 | $25.00 | 247,122.0000 | 139,039,000 | 5.72% | 0.01% |
| Aug. 13, 2025 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | S | Common Stock | 611 | $20.00 | 271,511.0000 | 139,039,000 | 0.22% | 0.00% |
| Aug. 15, 2025 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Medical Officer | S | Common Stock | 9389 | $20.00 | 262,122.0000 | 139,039,000 | 3.46% | 0.01% |
| Jan. 6, 2025 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Discovery/Trans Medicine | S | Common Stock | 10971 | $20.11 | 272,122.0000 | 124,848,000 | 3.88% | 0.01% |
| Jan. 6, 2025 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Discovery/Trans Medicine | S | Common Stock | 21758 | $19.68 | 283,093.0000 | 124,848,000 | 7.14% | 0.02% |
| Jan. 4, 2025 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Discovery/Trans Medicine | A | Common Stock | 100000 | $0.00 | 304,851.0000 | 124,848,000 | 48.82% | 0.08% |
| April 1, 2024 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Discovery/Trans Medicine | S | Common Stock | 6000 | $28.03 | 204,851.0000 | 106,750,000 | 2.85% | 0.01% |
| Jan. 12, 2024 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Discovery/Trans Medicine | S | Common Stock | 3702 | $37.37 | 210,851.0000 | 106,750,000 | 1.73% | 0.00% |
| Jan. 12, 2024 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Chief Discovery/Trans Medicine | S | Common Stock | 4238 | $36.47 | 214,553.0000 | 106,750,000 | 1.94% | 0.00% |
| Jan. 3, 2024 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Other | S | Common Stock | 2300 | $32.52 | 176,434.0000 | 106,750,000 | 1.29% | 0.00% |
| Jan. 5, 2024 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Other | S | Common Stock | 12343 | $35.65 | 228,791.0000 | 106,750,000 | 5.12% | 0.01% |
| Jan. 3, 2024 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Other | S | Common Stock | 3500 | $31.81 | 178,734.0000 | 106,750,000 | 1.92% | 0.00% |
| Jan. 5, 2024 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Other | S | Common Stock | 10000 | $35.00 | 218,791.0000 | 106,750,000 | 4.37% | 0.01% |
| Jan. 5, 2024 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Other | S | Common Stock | 8000 | $34.94 | 241,134.0000 | 106,750,000 | 3.21% | 0.01% |
| Jan. 5, 2024 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Other | S | Common Stock | 1800 | $34.00 | 249,134.0000 | 106,750,000 | 0.72% | 0.00% |
| Jan. 4, 2024 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Other | A | Common Stock | 75000 | $0.00 | 250,934.0000 | 106,750,000 | 42.63% | 0.07% |
| Jan. 3, 2024 | ARROWHEAD PHARMACEUTICALS, INC. | $ARWR | Hamilton James C | Other | S | Common Stock | 500 | $33.30 | 175,934.0000 | 106,750,000 | 0.28% | 0.00% |