Biogen Inc.
DE ˙ DB ˙ US09062X1037
170,90 € ↑8,70 (5,36%)
2026-06-04
CENA AKCJI
SecurityDE:IDP / Biogen Inc.
InstitutionColdstream Capital Management Inc
Latest Disclosed Ownership4,662 shares
Latest Disclosed Value $ 854,686
Coldstream Capital Management Inc reports 2.51% decrease in ownership of IDP / Biogen Inc.

On May 8, 2026 - Coldstream Capital Management Inc filed a 13F-HR form disclosing ownership of 4,662 shares of Biogen Inc. (DE:IDP) valued at $723,776 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 4,782 shares of Biogen Inc.. This represents a change in shares of -2.51% during the quarter. The current value of the position is $796,736 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)
2026-05-08 2026-03-31 13F BIOGEN COM 09062X103 4,662 -120 -2.51 855 1.55 0.0092
2026-02-09 2025-12-31 13F BIOGEN COM 09062X103 4,782 302 6.74 842 34.13 0.0108
2025-11-19 2025-09-30 13F BIOGEN COM 09062X103 4,480 1,234 38.02 628 54.05 0.0085
2025-08-12 2025-06-30 13F BIOGEN COM 09062X103 3,246 -116 -3.45 408 -11.52 0.0067
2025-05-13 2025-03-31 13F BIOGEN COM 09062X103 3,362 567 20.29 460 7.73 0.0098
2025-02-14 2024-12-31 13F BIOGEN COM 09062X103 2,795 398 16.60 427 -6.97 0.0091
2024-11-18 2024-09-30 13F/A-1 BIOGEN COM 09062X103 2,397 -300 -11.12 459 -26.56 0.0099
2024-11-18 2024-09-30 13F BIOGEN COM 09062X103 2,397 459
2024-08-07 2024-06-30 13F BIOGEN COM 09062X103 2,697 435 19.23 625 28.34 0.0152
2024-05-14 2024-03-31 13F BIOGEN COM 09062X103 2,262 -20 -0.88 488 -17.46 0.0124
2024-02-09 2023-12-31 13F BIOGEN COM 09062X103 2,282 333 17.09 591 18.00 0.0165
2023-11-02 2023-09-30 13F BIOGEN COM 09062X103 1,949 -241 -11.00 501 -19.74 0.0164
2023-08-03 2023-06-30 13F BIOGEN COM 09062X103 2,190 40 1.86 624 4.36 0.0198
2023-05-15 2023-03-31 13F BIOGEN COM 09062X103 2,150 -20 -0.92 598 -0.50 0.0201
2023-01-10 2022-12-31 13F BIOGEN COM 09062X103 2,170 168 8.39 601 47.06 0.0220
2022-08-08 2022-06-30 13F/A-1 BIOGEN COM 09062X103 2,002 799 66.42 408 61.26 0.0159
2022-08-08 2022-06-30 13F BIOGEN COM 09062X103 1,461 258 298 0.0127
2022-05-11 2022-03-31 13F BIOGEN COM 09062X103 1,203 -269 -18.27 253 -28.33 0.0087
2022-02-11 2021-12-31 13F BIOGEN COM 09062X103 1,472 378 34.55 353 13.87 0.0111
2021-11-12 2021-09-30 13F BIOGEN COM 09062X103 1,094 -76 -6.50 310 -23.46 0.0150
2021-08-16 2021-06-30 13F BIOGEN COM 09062X103 1,170 285 32.20 405 63.31 0.0163
2021-06-16 2021-03-31 13F BIOGEN COM 09062X103 885 -199 -18.36 248 -6.42 0.0145
2021-02-16 2020-12-31 13F BIOGEN COM 09062X103 1,084 1,084 265 0.0160
2020-11-16 2020-09-30 13F BIOGEN COM 09062X103 0 -772 -100.00 0 -100.00
2020-08-12 2020-06-30 13F BIOGEN COM 09062X103 772 -44 -5.39 207 -19.77 0.0186
2020-05-27 2020-03-31 13F BIOGEN COM 09062X103 816 -177 -17.82 258 -12.24 0.0282
2020-02-13 2019-12-31 13F BIOGEN COM 09062X103 993 99 11.07 294 41.35 0.0241
2019-11-15 2019-09-30 13F BIOGEN COM 09062X103 894 894 208 0.0175
2019-02-26 2018-12-31 13F BIOGEN COM 09062X103 0 -742 -100.00 0 -100.00
2018-11-14 2018-09-30 13F BIOGEN COM 09062X103 742 742 262 0.0237
2018-05-15 2018-03-31 13F BIOGEN COM 09062X103 0 -987 -100.00 0 -100.00
2018-02-14 2017-12-31 13F BIOGEN COM 09062X103 987 225 29.53 314 31.38 0.0341
2017-11-15 2017-09-30 13F BIOGEN COM 09062X103 762 762 239 0.0278
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.