Biogen Inc.

Parallel Advisors, LLC BIIB

Report date

12/31/2025

Quarter

2025 Q4

Filed

2/11/2026

Shares

4,302

Value ($000)

757

Weight

0.0%

2019 Q4 - 2025 Q4 (25 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	757	0.0%	4,302	12/31/2025
2025 Q3	11/13/2025	592	0.0%	4,223	9/30/2025
2025 Q2	7/8/2025	547	0.0%	4,354	6/30/2025
2025 Q1	4/8/2025	220	0.0%	1,610	3/31/2025
2024 Q4	2/10/2025	202	0.0%	1,320	12/31/2024
2024 Q3	11/13/2024	299	0.0%	1,545	9/30/2024
2024 Q2	8/8/2024	459	0.0%	1,982	6/30/2024
2024 Q1	5/6/2024	394	0.0%	1,826	3/31/2024
2023 Q4	2/12/2024	492	0.0%	1,901	12/31/2023
2023 Q3	5/20/2024	497	0.0%	1,934	9/30/2023
2023 Q2	5/20/2024	579	0.0%	2,033	6/30/2023
2023 Q1	5/20/2024	554	0.0%	1,991	3/31/2023
2022 Q4	2/6/2023	567	0.0%	2,048	12/31/2022
2022 Q3	11/10/2022	469	0.0%	1,757	9/30/2022
2022 Q2	8/1/2022	362	0.0%	1,773	6/30/2022
2022 Q1	4/28/2022	391	0.0%	1,852	3/31/2022
2021 Q4	1/20/2022	480	0.0%	2,000	12/31/2021
2021 Q3	11/2/2021	620	0.0%	2,192	9/30/2021
2021 Q2	8/6/2021	751	0.0%	2,170	6/30/2021
2021 Q1	4/23/2021	552	0.0%	1,973	3/31/2021
2020 Q4	2/2/2021	488	0.0%	1,991	12/31/2020
2020 Q3	10/27/2020	523	0.0%	1,843	9/30/2020
2020 Q2	7/16/2020	477	0.0%	1,786	6/30/2020
2020 Q1	4/27/2020	794	0.1%	2,511	3/31/2020
2019 Q4	1/30/2020	499	0.0%	1,681	12/31/2019