Biogen Inc.

E. Ohman J:or Asset Management AB BIIB

Report date

12/31/2025

Quarter

2025 Q4

Filed

1/12/2026

Shares

5,719

Value ($000)

1,006

Weight

0.0%

2006 Q4 - 2025 Q4 (76 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	1/12/2026	1,006	0.0%	5,719	12/31/2025
2025 Q3	10/17/2025	896	0.0%	6,399	9/30/2025
2025 Q2	7/8/2025	804	0.0%	6,399	6/30/2025
2025 Q1	4/11/2025	876	0.0%	6,399	3/31/2025
2024 Q4	1/27/2025	979	0.0%	6,399	12/31/2024
2024 Q3	10/23/2024	1,085	0.0%	5,599	9/30/2024
2024 Q2	8/13/2024	1,414	0.0%	6,099	6/30/2024
2024 Q1	5/14/2024	5,196	0.1%	24,099	3/31/2024
2023 Q4	2/15/2024	1,449	0.1%	5,599	12/31/2023
2023 Q3	2/6/2024	1,670	0.1%	6,499	9/30/2023
2023 Q2	4/5/2024	1,965	0.1%	6,899	6/30/2023
2023 Q1	4/5/2024	1,751	0.1%	6,299	3/31/2023
2022 Q4	4/5/2024	1,744	0.1%	6,299	12/31/2022
2022 Q3	4/5/2024	1,682	0.1%	6,299	9/30/2022
2022 Q2	4/5/2024	1,427	0.1%	6,999	6/30/2022
2022 Q1	4/5/2024	1,474	0.0%	6,999	3/31/2022
2021 Q4	4/5/2024	1,679	0.0%	6,999	12/31/2021
2021 Q3	4/5/2024	1,981	0.1%	6,999	9/30/2021
2021 Q2	4/5/2024	2,147	0.1%	6,199	6/30/2021
2021 Q1	4/5/2024	1,734	0.1%	6,199	3/31/2021
2020 Q4	4/5/2024	1,567	0.1%	6,399	12/31/2020
2020 Q3	4/5/2024	1,957	0.1%	6,899	9/30/2020
2020 Q2	4/5/2024	1,899	0.1%	7,099	6/30/2020
2020 Q1	4/5/2024	2,088	0.2%	6,599	3/31/2020
2019 Q4	4/5/2024	2,789	0.2%	9,399	12/31/2019
2019 Q3	4/5/2024	2,072	0.1%	8,900	9/30/2019
2019 Q2	4/5/2024	1,965	0.1%	8,400	6/30/2019
2019 Q1	4/5/2024	12,031	0.8%	50,898	3/31/2019
2018 Q4	4/5/2024	18,457	1.3%	61,336	12/31/2018
2018 Q3	4/5/2024	18,166	1.2%	51,418	9/30/2018
2018 Q2	4/5/2024	17,575	1.3%	60,553	6/30/2018
2018 Q1	4/5/2024	13,407	1.1%	48,961	3/31/2018
2017 Q4	4/5/2024	15,657	1.3%	49,149	12/31/2017
2017 Q3	4/5/2024	14,337	1.3%	45,786	9/30/2017
2017 Q2	4/5/2024	12,398	1.2%	45,690	6/30/2017
2017 Q1	4/5/2024	6,131	0.8%	22,423	3/31/2017
2016 Q4	4/5/2024	5,516	0.8%	19,453	12/31/2016
2016 Q3	4/5/2024	5,624	0.8%	17,965	9/30/2016
2016 Q2	4/5/2024	1,040	0.2%	4,300	6/30/2016
2016 Q1	4/5/2024	1,119	0.2%	4,300	3/31/2016
2015 Q4	4/5/2024	1,317	0.2%	4,300	12/31/2015
2015 Q3	4/5/2024	1,255	0.3%	4,300	9/30/2015
2015 Q2	4/5/2024	1,979	0.5%	4,900	6/30/2015
2015 Q1	4/5/2024	2,238	0.5%	5,300	3/31/2015
2014 Q4	4/5/2024	1,814	0.4%	5,300	12/31/2014
2014 Q3	4/5/2024	1,753	0.4%	5,300	9/30/2014
2014 Q2	4/5/2024	1,671	0.4%	5,300	6/30/2014
2014 Q1	4/5/2024	1,621	0.4%	5,300	3/31/2014
2013 Q4	4/5/2024	1,677	0.4%	6,000	12/31/2013
2013 Q3	4/5/2024	1,493	0.4%	6,200	9/30/2013
2013 Q2	4/5/2024	1,248	0.3%	5,800	6/30/2013
2013 Q1	4/5/2024	1,117	0.3%	5,800	3/31/2013
2012 Q4	4/5/2024	849	0.3%	5,800	12/31/2012
2012 Q3	4/5/2024	806	0.3%	5,400	9/30/2012
2012 Q2	4/5/2024	852	0.3%	5,900	6/30/2012
2012 Q1	4/5/2024	743	0.2%	5,900	3/31/2012
2011 Q4	4/5/2024	517	0.2%	4,700	12/31/2011
2011 Q3	4/5/2024	484	0.3%	5,200	9/30/2011
2011 Q2	4/5/2024	556	0.2%	5,200	6/30/2011
2011 Q1	4/5/2024	381	0.2%	5,200	3/31/2011
2010 Q4	4/5/2024	282	0.1%	4,200	12/31/2010
2010 Q3	4/5/2024	236	0.1%	4,200	9/30/2010
2010 Q2	4/5/2024	199	0.1%	4,200	6/30/2010
2010 Q1	4/5/2024	241	0.2%	4,200	3/31/2010
2009 Q4	4/5/2024	171	0.1%	3,200	12/31/2009
2009 Q3	4/5/2024	237	0.1%	4,700	9/30/2009
2009 Q2	4/5/2024	212	0.2%	4,700	6/30/2009
2008 Q4	4/5/2024	162	0.2%	3,400	12/31/2008
2008 Q3	4/5/2024	171	0.2%	3,400	9/30/2008
2008 Q2	4/5/2024	274	0.2%	4,900	6/30/2008
2008 Q1	4/5/2024	197	0.2%	3,200	3/31/2008
2007 Q4	4/5/2024	182	0.1%	3,200	12/31/2007
2007 Q3	4/5/2024	212	0.2%	3,200	9/30/2007
2007 Q2	4/5/2024	171	0.2%	3,200	6/30/2007
2007 Q1	4/5/2024	142	0.1%	3,200	3/31/2007
2006 Q4	4/5/2024	157	0.1%	3,200	12/31/2006