Biogen Inc.
DE ˙ DB ˙ US09062X1037
162,20 € ↑3,64 (2,30%)
2026-06-03
AKTIENPREIS
SecurityDE:IDP / Biogen Inc.
InstitutionStrs Ohio
Latest Disclosed Ownership3,494 shares
Latest Disclosed Value $ 640,555
Strs Ohio reports 0.14% decrease in ownership of IDP / Biogen Inc.

On April 24, 2026 - Strs Ohio filed a 13F-HR form disclosing ownership of 3,494 shares of Biogen Inc. (DE:IDP) valued at $542,444 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 3,499 shares of Biogen Inc.. This represents a change in shares of -0.14% during the quarter. The current value of the position is $566,727 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F BIOGEN COM_STK 09062X103 3,494 -5 -0.14 641 4.07 0.0025
2026-02-02 2025-12-31 13F BIOGEN COM_STK 09062X103 3,499 6 0.17 616 25.77 0.0023
2025-10-30 2025-09-30 13F BIOGEN COM_STK 09062X103 3,493 1 0.03 489 11.64 0.0018
2025-08-04 2025-06-30 13F BIOGEN COM_STK 09062X103 3,492 -30,508 -89.73 439 -90.58 0.0016
2025-05-28 2025-03-31 13F BIOGEN COM_STK 09062X103 34,000 0 0.00 4,653 -10.52 0.0195
2025-05-28 2024-12-31 13F BIOGEN COM_STK 09062X103 34,000 -15,000 -30.61 5,199 -45.26 0.0206
2024-11-01 2024-09-30 13F BIOGEN COM_STK 09062X103 49,000 0 0.00 9,498 -16.38 0.0365
2024-08-05 2024-06-30 13F BIOGEN COM_STK 09062X103 49,000 49,000 11,359 0.0449
2024-05-13 2024-03-31 13F BIOGEN IDEC COM 09062X103 0 -5,825 -100.00 0 -100.00
2024-01-30 2023-12-31 13F BIOGEN IDEC COM 09062X103 5,825 -81,114 -93.30 2 -95.45 0.0063
2023-10-26 2023-09-30 13F/A-1 BIOGEN IDEC COM 09062X103 86,939 -46,977 -35.08 22 -42.11 0.0995
2023-10-26 2023-09-30 13F BIOGEN IDEC COM 09062X103 86,939 -46,977 22 0.0995
2023-07-31 2023-06-30 13F BIOGEN IDEC COM 09062X103 133,916 -2,837 -2.07 38 0.00 0.1610
2023-08-02 2023-03-31 13F/A-2 BIOGEN IDEC COM 09062X103 136,753 203 0.15 38 2.70 0.1647
2023-08-02 2023-03-31 13F/A-1 BIOGEN IDEC COM 09062X103 136,753 38
2023-04-27 2023-03-31 13F BIOGEN IDEC COM 09062X103 136,753 203 38 0.1962
2023-01-26 2022-12-31 13F BIOGEN IDEC COM 09062X103 136,550 136,550 38 0.1707
2022-07-25 2022-06-30 13F BIOGEN IDEC COM 09062X103 0 -45,733 -100.00 0 -100.00
2022-04-21 2022-03-31 13F BIOGEN IDEC COM 09062X103 45,733 -5,412 -10.58 9,631 -21.51 0.0352
2022-01-24 2021-12-31 13F BIOGEN IDEC COM 09062X103 51,145 -3,692 -6.73 12,270 -20.93 0.0426
2021-10-22 2021-09-30 13F BIOGEN IDEC COM 09062X103 54,837 -9,915 -15.31 15,518 -30.79 0.0584
2021-07-26 2021-06-30 13F BIOGEN IDEC COM 09062X103 64,752 -3,063 -4.52 22,421 18.19 0.0806
2021-04-23 2021-03-31 13F BIOGEN IDEC COM 09062X103 67,815 -4,010 -5.58 18,971 7.87 0.0714
2021-01-25 2020-12-31 13F BIOGEN IDEC COM 09062X103 71,825 -11,838 -14.15 17,587 -25.90 0.0678
2020-12-14 2020-09-30 13F BIOGEN IDEC COM 09062X103 83,663 -7,041 -7.76 23,733 -2.20 0.0994
2020-07-23 2020-06-30 13F BIOGEN IDEC COM 09062X103 90,704 2,692 3.06 24,267 -12.85 0.1061
2020-04-23 2020-03-31 13F BIOGEN IDEC COM 09062X103 88,012 11,986 15.77 27,845 23.43 0.1466
2020-01-24 2019-12-31 13F BIOGEN IDEC COM 09062X103 76,026 -8,567 -10.13 22,559 14.55 0.0945
2019-10-21 2019-09-30 13F/A-1 BIOGEN IDEC COM 09062X103 84,593 -10,946 -11.46 19,694 -11.86 0.0863
2019-10-21 2019-09-30 13F BIOGEN IDEC COM 09062X103 84,593 8,567 19,694 87,166.7363
2019-07-25 2019-06-30 13F BIOGEN IDEC COM 09062X103 95,539 -6,983 -6.81 22,343 -7.80 0.0993
2019-04-19 2019-03-31 13F BIOGEN IDEC COM 09062X103 102,522 -16,553 -13.90 24,234 -32.37 0.1099
2019-01-23 2018-12-31 13F BIOGEN IDEC COM 09062X103 119,075 844 0.71 35,832 -14.22 0.1819
2018-10-19 2018-09-30 13F BIOGEN IDEC COM 09062X103 118,231 -13,644 -10.35 41,772 9.14 0.1832
2018-08-06 2018-06-30 13F BIOGEN IDEC COM 09062X103 131,875 -78,102 -37.20 38,275 -33.43 0.1648
2018-04-20 2018-03-31 13F BIOGEN IDEC COM 09062X103 209,977 -67,155 -24.23 57,495 -34.88 0.2543
2018-01-23 2017-12-31 13F BIOGEN IDEC COM 09062X103 277,132 -18,436 -6.24 88,285 -4.61 0.3772
2017-10-23 2017-09-30 13F BIOGEN IDEC COM 09062X103 295,568 10,000 3.50 92,548 19.43 0.3974
2017-07-26 2017-06-30 13F BIOGEN IDEC COM 09062X103 285,568 -34,362 -10.74 77,491 -11.41 0.3452
2017-04-26 2017-03-31 13F BIOGEN IDEC COM 09062X103 319,930 -7,347 -2.24 87,475 -5.75 0.3789
2017-01-24 2016-12-31 13F BIOGEN IDEC COM 09062X103 327,277 13,390 4.27 92,809 -5.54 0.4089
2016-10-27 2016-09-30 13F BIOGEN IDEC COM 09062X103 313,887 10,615 3.50 98,256 33.98 0.4389
2016-07-26 2016-06-30 13F BIOGEN IDEC COM 09062X103 303,272 29,114 10.62 73,337 2.76 0.3260
2016-04-25 2016-03-31 13F/A-1 BIOGEN IDEC COM 09062X103 274,158 -4,711 -1.69 71,368 -16.46 0.3206
2016-01-28 2015-12-31 13F BIOGEN IDEC COM 09062X103 278,869 -3,481 -1.23 85,431 3.69 0.3820
2015-10-21 2015-09-30 13F BIOGEN IDEC COM 09062X103 282,350 4,456 1.60 82,392 -26.60 0.3920
2015-08-04 2015-06-30 13F BIOGEN IDEC COM 09062X103 277,894 32,560 13.27 112,252 8.36 0.4929
2015-04-27 2015-03-31 13F/A-1 BIOGEN IDEC COM 09062X103 245,334 -3,961 -1.59 103,589 22.41 0.4568
2015-04-21 2015-03-31 13F BIOGEN IDEC COM 09062X103 103,589,828 101,773
2015-01-23 2014-12-31 13F BIOGEN IDEC COM 09062X103 249,295 -3,360 -1.33 84,623 1.25 0.3669
2014-10-29 2014-09-30 13F/A-1 BIOGEN IDEC COM 09062X103 252,655 0 0.00 83,581 4.92 0.3691
2014-10-20 2014-09-30 13F BIOGEN IDEC COM 09062X103 252,655 83,581
2014-07-24 2014-06-30 13F BIOGEN IDEC COM 09062X103 252,655 31,180 14.08 79,665 17.60 0.3550
2014-04-28 2014-03-31 13F BIOGEN IDEC COM 09062X103 221,475 36,500 19.73 67,743 30.91 0.3047
2014-01-30 2013-12-31 13F BIOGEN IDEC COM 09062X103 184,975 7,300 4.11 51,747 20.97 0.2327
2013-10-24 2013-09-30 13F BIOGEN IDEC COM 09062X103 177,675 1,035 0.59 42,777 12.53 0.1886
2013-08-12 2013-06-30 13F BIOGEN IDEC COM 09062X103 176,640 176,640 38,013 0.1634
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.