Biogen Inc.
DE ˙ DB ˙ US09062X1037
162,20 € ↑3,64 (2,30%)
2026-06-03
AKTIENPREIS
SecurityDE:IDP / Biogen Inc.
InstitutionEthic Inc.
Latest Disclosed Ownership47,293 shares
Latest Disclosed Value $ 8,670,154
Ethic Inc. reports 2.67% decrease in ownership of IDP / Biogen Inc.

On April 27, 2026 - Ethic Inc. filed a 13F-HR form disclosing ownership of 47,293 shares of Biogen Inc. (DE:IDP) valued at $7,342,238 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 48,591 shares of Biogen Inc.. This represents a change in shares of -2.67% during the quarter. The current value of the position is $7,670,925 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-27 2026-03-31 13F BIOGEN COM 09062X103 47,293 -1,298 -2.67 8,670 1.39 0.1358
2026-02-03 2025-12-31 13F BIOGEN COM 09062X103 48,591 4,095 9.20 8,552 37.19 0.1315
2025-10-17 2025-09-30 13F BIOGEN COM 09062X103 44,496 32,058 257.74 6,233 297.51 0.1026
2025-07-30 2025-06-30 13F BIOGEN COM 09062X103 12,438 4,583 58.35 1,568 51.21 0.0281
2025-05-13 2025-03-31 13F BIOGEN COM 09062X103 7,855 -7,057 -47.32 1,037 -54.52 0.0210
2025-02-14 2024-12-31 13F BIOGEN COM 09062X103 14,912 7,743 108.01 2,280 47.57 0.0460
2024-11-13 2024-09-30 13F BIOGEN COM 09062X103 7,169 -691 -8.79 1,546 -15.20 0.0391
2024-08-13 2024-06-30 13F BIOGEN COM 09062X103 7,860 691 9.64 1,822 17.93 0.0427
2024-05-13 2024-03-31 13F BIOGEN COM 09062X103 7,169 -6,690 -48.27 1,546 -56.92 0.0391
2024-02-14 2023-12-31 13F BIOGEN COM 09062X103 13,859 6,290 83.10 3,586 84.37 0.1061
2023-11-14 2023-09-30 13F BIOGEN COM 09062X103 7,569 1,729 29.61 1,945 16.96 0.0683
2023-08-14 2023-06-30 13F BIOGEN COM 09062X103 5,840 -517 -8.13 1,664 -5.89 0.0617
2023-05-12 2023-03-31 13F BIOGEN COM 09062X103 6,357 -2,894 -31.28 1,767 -31.00 0.0717
2023-02-14 2022-12-31 13F BIOGEN COM 09062X103 9,251 4,048 77.80 2,562 84.38 0.1384
2022-11-14 2022-09-30 13F BIOGEN COM 09062X103 5,203 1,681 47.73 1,389 93.45 0.0943
2022-08-10 2022-06-30 13F BIOGEN COM 09062X103 3,522 1,025 41.05 718 36.50 0.0500
2022-05-16 2022-03-31 13F BIOGEN COM 09062X103 2,497 327 15.07 526 0.96 0.0363
2022-02-14 2021-12-31 13F BIOGEN COM 09062X103 2,170 -776 -26.34 521 -37.53 0.0402
2021-11-15 2021-09-30 13F BIOGEN COM 09062X103 2,946 747 33.97 834 9.59 0.0854
2021-08-10 2021-06-30 13F BIOGEN COM 09062X103 2,199 -170 -7.18 761 14.78 0.0922
2021-05-13 2021-03-31 13F BIOGEN COM 09062X103 2,369 515 27.78 663 46.04 0.1182
2021-02-10 2020-12-31 13F BIOGEN COM 09062X103 1,854 857 85.96 454 60.42 0.1200
2020-10-27 2020-09-30 13F BIOGEN COM 09062X103 997 -752 -43.00 283 -39.53 0.1082
2020-08-12 2020-06-30 13F BIOGEN COM 09062X103 1,749 -111 -5.97 468 -20.41 0.2663
2020-05-15 2020-03-31 13F BIOGEN COM 09062X103 1,860 162 9.54 588 16.67 0.4909
2020-05-22 2019-12-31 13F/A-1 BIOGEN COM 09062X103 1,698 1,698 504 0.3843
2020-02-13 2019-12-31 13F BIOGEN COM 09062X103 1,525 453 0.3904
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.