Biogen Inc.

Arizona State Retirement System BIIB

Report date

12/31/2025

Quarter

2025 Q4

Filed

1/28/2026

Shares

40,220

Value ($000)

7,078

Weight

0.0%

2013 Q4 - 2025 Q4 (28 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	1/28/2026	7,078	0.0%	40,220	12/31/2025
2025 Q3	11/3/2025	6,082	0.0%	43,419	9/30/2025
2025 Q2	8/13/2025	5,369	0.0%	42,753	6/30/2025
2025 Q1	5/1/2025	5,763	0.0%	42,114	3/31/2025
2024 Q4	2/6/2025	6,235	0.0%	40,770	12/31/2024
2024 Q3	11/12/2024	8,087	0.1%	41,721	9/30/2024
2024 Q2	8/5/2024	9,769	0.1%	42,140	6/30/2024
2024 Q1	5/7/2024	8,966	0.1%	41,581	3/31/2024
2023 Q4	1/24/2024	10,544	0.1%	40,745	12/31/2023
2023 Q3	11/7/2023	10,530	0.1%	40,970	9/30/2023
2023 Q2	8/1/2023	11,765	0.1%	41,301	6/30/2023
2023 Q1	4/27/2023	10,932	0.1%	39,319	3/31/2023
2022 Q4	2/8/2023	10,949	0.1%	39,540	12/31/2022
2022 Q3	11/7/2022	10,629	0.1%	39,809	9/30/2022
2022 Q2	7/28/2022	8,223	0.1%	40,319	6/30/2022
2022 Q1	5/4/2022	8,489	0.1%	40,307	3/31/2022
2021 Q4	2/4/2022	9,793	0.1%	40,818	12/31/2021
2021 Q3	11/12/2021	11,881	0.1%	41,984	9/30/2021
2021 Q2	8/2/2021	14,779	0.1%	42,681	6/30/2021
2021 Q1	5/6/2021	12,131	0.1%	43,364	3/31/2021
2020 Q4	1/28/2021	11,185	0.1%	45,678	12/31/2020
2020 Q3	11/5/2020	14,079	0.1%	49,629	9/30/2020
2020 Q2	8/4/2020	10,940	0.2%	40,888	6/30/2020
2020 Q1	5/5/2020	10,265	0.2%	32,444	3/31/2020
2019 Q4	1/27/2020	10,054	0.1%	33,882	12/31/2019
2014 Q2	8/7/2014	21,345	0.3%	67,698	6/30/2014
2014 Q1	5/19/2014	19,819	0.3%	64,798	3/31/2014
2013 Q4	2/5/2014	18,882	0.2%	67,498	12/31/2013