| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 05/05/2023 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 6.5k | $40.90 | $265.8k | | 05/05/2023 |
| 02/27/2023 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 875 | $32.62 | $28.5k | By Trust | 02/27/2023 |
| 01/10/2023 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Grant | Common Stock | 7.9k | $0.00 | $0 | | 01/10/2023 |
| 01/10/2023 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Grant | Common Stock | 4.6k | $33.03 | $151.7k | | 01/10/2023 |
| 01/07/2022 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Grant | Common Stock | 6.4k | $0.00 | $0 | | 01/07/2022 |
| 12/28/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Gift | Common Stock | 655 | $0.00 | $0 | | 12/28/2021 |
| 12/28/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Purchase | Common Stock | 655 | $66.37 | $43.5k | | 12/28/2021 |
| 09/09/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 5k | $65.24 | $326.2k | | 09/09/2021 |
| 06/22/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 4.5k | $89.21 | $401.4k | | 06/22/2021 |
| 02/22/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 1.1k | $88.73 | $99.8k | By Trust | 02/22/2021 |
| 01/15/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 3k | $83.28 | $249.8k | By Trust | 01/15/2021 |
| 01/04/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 4k | $76.08 | $304.3k | | 01/01/2021 |
| 01/01/2021 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Grant | Common Stock | 9.5k | $0.00 | $0 | | 01/01/2021 |
| 12/22/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Gift | Common Stock | 35 | $0.00 | $0 | | 12/17/2020 |
| 12/21/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Gift | Common Stock | 200 | $0.00 | $0 | | 12/17/2020 |
| 12/21/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Gift | Common Stock | 35 | $0.00 | $0 | | 12/17/2020 |
| 12/17/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Gift | Common Stock | 65 | $0.00 | $0 | | 12/17/2020 |
| 12/17/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Gift | Common Stock | 200 | $0.00 | $0 | | 12/17/2020 |
| 12/17/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Gift | Common Stock | 35 | $0.00 | $0 | | 12/17/2020 |
| 12/17/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 9.1k | $79.30 | $719.6k | | 12/07/2020 |
| 12/17/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 500 | $79.59 | $39.8k | By Trust | 12/07/2020 |
| 12/07/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Gift | Common Stock | 31k | $0.00 | $0 | | 12/07/2020 |
| 12/07/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Gift | Common Stock | 15.5k | $0.00 | $0 | By Trust | 12/07/2020 |
| 12/07/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Gift | Common Stock | 15.5k | $0.00 | $0 | By Trust | 12/07/2020 |
| 04/14/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Gift | Common Stock | 1.1k | $0.00 | $0 | | 04/14/2020 |
| 04/14/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 25k | $36.89 | $922.2k | | 04/14/2020 |
| 01/01/2020 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Grant | Common Stock | 8k | $0.00 | $0 | | 01/01/2020 |
| 02/26/2019 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Stock Option (right to buy) | 7k | $4.75 | $33.2k | | 02/22/2019 |
| 02/26/2019 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Stock Option (right to buy) | 10k | $2.62 | $26.2k | | 02/22/2019 |
| 02/26/2019 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Stock Option (right to buy) | 18k | $2.19 | $39.4k | | 02/22/2019 |
| 02/26/2019 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Exercise | Stock Option (right to buy) | 30k | $5.19 | $155.7k | | 02/22/2019 |
| 02/26/2019 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 65k | $19.25 | $1.3M | | 02/22/2019 |
| 02/22/2019 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 3k | $18.05 | $54.2k | | 02/22/2019 |
| 01/22/2019 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Sale | Common Stock | 3k | $13.58 | $40.7k | | 01/22/2019 |
| 01/01/2019 | ARROWHEAD PHARMACEUTICALS, INC. | ARWR | Grant | Common Stock | 36k | $0.00 | $0 | | 01/01/2019 |
|