Arrowhead Pharmaceuticals, Inc.

O'SHAUGHNESSY ASSET MANAGEMENT, LLC ARWR

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/11/2026

Shares

14,588

Value ($000)

968

Weight

0.0%

2019 Q4 - 2025 Q4 (21 filings)

Shares History

History scope: non-option holdings only (PUT/CALL rows excluded).

All 13F Holders	Filing date	Value ($000s)	% of Holdings	Shares	Reporting period
2025 Q4	2/11/2026	968	0.0%	14,588	12/31/2025
2025 Q3	11/13/2025	327	0.0%	9,491	9/30/2025
2024 Q3	11/12/2024	203	0.0%	10,491	9/30/2024
2024 Q2	8/14/2024	246	0.0%	9,481	6/30/2024
2024 Q1	5/13/2024	279	0.0%	9,752	3/31/2024
2023 Q4	2/9/2024	303	0.0%	9,896	12/31/2023
2023 Q3	11/13/2023	257	0.0%	9,558	9/30/2023
2023 Q1	5/12/2023	254	0.0%	10,014	3/31/2023
2022 Q4	2/10/2023	473	0.0%	11,667	12/31/2022
2022 Q3	11/14/2022	399	0.0%	12,076	9/30/2022
2022 Q2	8/11/2022	342	0.0%	9,704	6/30/2022
2022 Q1	5/13/2022	431	0.0%	9,378	3/31/2022
2021 Q4	2/11/2022	480	0.0%	7,244	12/31/2021
2021 Q3	11/10/2021	378	0.0%	6,040	9/30/2021
2021 Q2	8/9/2021	544	0.0%	6,572	6/30/2021
2021 Q1	5/14/2021	435	0.0%	6,572	3/31/2021
2020 Q4	2/11/2021	512	0.0%	6,675	12/31/2020
2020 Q3	11/12/2020	504	0.0%	11,670	9/30/2020
2020 Q2	8/13/2020	555	0.0%	12,845	6/30/2020
2020 Q1	5/13/2020	455	0.0%	15,742	3/31/2020
2019 Q4	2/12/2020	909	0.0%	14,359	12/31/2019