Arrowhead Pharmaceuticals, Inc.

Historical 13F Holders

Symbol
ARWR
CUSIP
04280A100
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for 04280A100 since 12/18/2024, newest first.

Filer % of Class Filed
Avoro Capital Advisors LLC 13G/A Amendment 3
9.6% 8/14/2026
Event 6/30/2026
Vanguard Portfolio Management LLC 13G/A Amendment 1 4.5% 7/31/2026
Event 6/30/2026
BlackRock, Inc. 13G/A Amendment 6 10.1% 7/27/2026
Event 6/30/2026
FMR LLC 13G
5.2% 5/6/2026
Event 3/31/2026
Vanguard Capital Management LLC 13G 5.1% 4/29/2026
Event 3/31/2026
Vanguard Portfolio Management LLC 13G 5.2% 4/28/2026
Event 3/31/2026
BlackRock, Inc. 13G/A Amendment 5 12.2% 4/24/2026
Event 3/31/2026
Vanguard Group Inc 13G/A Amendment 9 0% 3/26/2026
Event 3/13/2026
BlackRock, Inc. 13G/A Amendment 4 15.0% 1/21/2026
Event 12/31/2025
Sarepta Therapeutics, Inc. 13D/A Amendment 1
0% 8/15/2025
Event 8/13/2025
Avoro Capital Advisors LLC 13G/A Amendment 2
8.3% 8/14/2025
Event 6/30/2025
State Street Corp 13G 4.6% 8/11/2025
Event 6/30/2025
Vanguard Group Inc 13G/A Amendment 8 11.2% 7/29/2025
Event 6/30/2025
State Street Corp 13G 5.1% 5/13/2025
Event 3/31/2025
BlackRock, Inc. 13G/A Amendment 3 13.8% 4/23/2025
Event 3/31/2025
Sarepta Therapeutics, Inc. 13D
9.5% 2/14/2025
Event 2/7/2025
Avoro Capital Advisors LLC 13G/A Amendment 1
9.6% 2/14/2025
Event 12/31/2024
State Street Corp 13G 4.8% 2/5/2025
Event 12/31/2024

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 8 22.5 k $1.45 M
2026 Q2 529 131 M $9.89 B
2026 Q1 465 121 M $7.58 B
2025 Q4 428 116 M $7.70 B
2025 Q3 320 112 M $3.85 B
2025 Q2 304 106 M $1.68 B
2025 Q1 287 105 M $1.34 B
2024 Q4 290 99.7 M $1.88 B
2024 Q3 288 100 M $1.94 B
2024 Q2 293 102 M $2.65 B
2024 Q1 297 102 M $2.90 B
2023 Q4 291 82.2 M $2.52 B
2023 Q3 269 74.8 M $2.01 B
2023 Q2 294 72.4 M $2.57 B
2023 Q1 273 73.2 M $1.86 B
2022 Q4 303 79.5 M $3.22 B
2022 Q3 295 71.9 M $2.37 B
2022 Q2 295 72.4 M $2.55 B
2022 Q1 326 69.6 M $3.20 B
2021 Q4 338 68.4 M $4.54 B
2021 Q3 318 66.6 M $4.16 B
2021 Q2 336 67.3 M $5.57 B
2021 Q1 308 69.0 M $4.58 B
2020 Q4 345 70.1 M $5.38 B
2020 Q3 287 68.3 M $2.95 B
2020 Q2 279 69.0 M $2.98 B
2020 Q1 270 66.6 M $1.93 B
2019 Q4 325 66.6 M $4.23 B
2019 Q3 250 65.8 M $1.86 B
2019 Q2 237 68.6 M $1.82 B
2019 Q1 191 59.2 M $1.09 B
2018 Q4 175 59.6 M $740 M
2018 Q3 154 56.5 M $1.08 B
2018 Q2 129 51.9 M $706 M
2018 Q1 101 41.0 M $296 M
2017 Q4 87 23.4 M $86.0 M
2017 Q3 65 15.0 M $64.9 M
2017 Q2 67 15.4 M $25.0 M
2017 Q1 95 24.5 M $45.4 M
2016 Q4 100 25.9 M $40.2 M
2016 Q3 111 30.2 M $222 M
2016 Q2 97 20.6 M $110 M
2016 Q1 8 2.13 M $10.3 M
2015 Q4 1 500 $4.00 k
2015 Q3 1 500 $3.00 k
2015 Q2 1 500 $4.00 k
2015 Q1 1 500 $4.00 k
2014 Q4 1 500 $4.00 k