Biogen Inc.
US ˙ NasdaqGS ˙ US09062X1037

SecurityBIIB / Biogen Inc.
InstitutionAlps Advisors Inc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Alps Advisors Inc closes position in BIIB / Biogen Inc.

On May 8, 2026 - Alps Advisors Inc filed a 13F-HR form disclosing ownership of 0 shares of Biogen Inc. (US:BIIB) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 3,178 shares of Biogen Inc.. The current value of the position is $0 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 0 -100.00 0
2026-02-12 2025-12-31 13F BIOGEN COM 09062X103 3,178 35 1.11 559 27.05 0.0033
2025-11-05 2025-09-30 13F BIOGEN COM 09062X103 3,143 612 24.18 440 38.80 0.0025
2025-08-11 2025-06-30 13F BIOGEN COM 09062X103 2,531 31 1.24 318 -7.31 0.0018
2025-04-30 2025-03-31 13F BIOGEN COM 09062X103 2,500 2,500 342 0.0020
2023-11-14 2023-09-30 13F BIOGEN COM 09062X103 0 -1,240 -100.00 0 -100.00
2023-08-14 2023-06-30 13F BIOGEN COM 09062X103 1,240 10 0.81 353 3.52 0.0031
2023-05-10 2023-03-31 13F BIOGEN COM 09062X103 1,230 1,230 342 0.0030
2020-08-05 2020-06-30 13F BIOGEN COM 09062X103 0 -722 -100.00 0 -100.00
2020-05-06 2020-03-31 13F BIOGEN COM 09062X103 722 -744 -50.75 228 -47.59 0.0035
2020-02-07 2019-12-31 13F BIOGEN COM 09062X103 1,466 -63 -4.12 435 22.19 0.0034
2019-11-04 2019-09-30 13F BIOGEN COMMON STOCK 09062X103 1,529 305 24.92 356 24.48 0.0028
2019-08-07 2019-06-30 13F BIOGEN COMMON STOCK 09062X103 1,224 -313 -20.36 286 -21.21 0.0021
2019-05-01 2019-03-31 13F BIOGEN COMMON STOCK 09062X103 1,537 -7,153 -82.31 363 -86.12 0.0026
2019-02-04 2018-12-31 13F BIOGEN COMMON STOCK 09062X103 8,690 3,167 57.34 2,615 34.03 0.0203
2018-10-25 2018-09-30 13F BIOGEN COMMON STOCK 09062X103 5,523 3,638 193.00 1,951 256.67 0.0128
2018-08-02 2018-06-30 13F/A-2 Biogen COMMON STOCK 09062X103 1,885 -352 -15.74 547 -10.77 0.0036
2018-07-31 2018-06-30 13F/A-1 Biogen COMMON STOCK 09062X103 1,802 -83 574 0.0037
2018-07-25 2018-06-30 13F Biogen COMMON STOCK 09062X103 1,802 -435 574
2018-05-01 2018-03-31 13F Biogen COMMON STOCK 09062X103 2,237 435 24.14 613 6.79 0.0049
2018-02-20 2017-12-31 13F/A-1 Biogen COMMON STOCK 09062X103 1,802 -198 -9.90 574 -8.31 0.0040
2018-02-05 2017-12-31 13F Biogen COMMON STOCK 09062X103 1,802 -198 574
2017-11-03 2017-09-30 13F Biogen COMMON STOCK 09062X103 2,000 -109 -5.17 626 9.44 0.0044
2017-08-03 2017-06-30 13F Biogen COMMON STOCK 09062X103 2,109 209 11.00 572 10.21 0.0040
2017-05-12 2017-03-31 13F Biogen COMMON STOCK 09062X103 1,900 177 10.27 519 6.13 0.0036
2017-01-24 2016-12-31 13F Biogen Common Stock 09062X103 1,723 -113 -6.15 489 -14.96 0.0036
2016-11-02 2016-09-30 13F Biogen Common Stock 09062X103 1,836 -228 -11.05 575 15.23 0.0047
2016-07-27 2016-06-30 13F Biogen Common Stock 09062X103 2,064 204 10.97 499 3.10 0.0044
2016-05-10 2016-03-31 13F Biogen Common Stock 09062X103 1,860 176 10.45 484 -6.20 0.0050
2016-02-05 2015-12-31 13F Biogen Common Stock 09062X103 1,684 -172 -9.27 516 -90.47 0.0050
2015-11-13 2015-09-30 13F Biogen Common Stock 09062X103 1,856 510 37.89 5,416 895.59 0.0057
2015-08-12 2015-06-30 13F BIOGEN Common Stock 09062X103 1,346 30 2.28 544 -2.16 0.0046
2015-05-15 2015-03-31 13F BIOGEN Common Stock 09062X103 1,316 -330 -20.05 556 -0.54 0.0046
2015-02-13 2014-12-31 13F BIOGEN IDEC Common Stock 09062X103 1,646 -347 -17.41 559 -15.17 0.0044
2014-12-18 2014-09-30 13F/A-1 BIOGEN IDEC Common Stock 09062X103 1,993 206 11.53 659 17.05 0.0051
2014-11-24 2014-09-30 13F BIOGEN IDEC Common Stock 09062X103 1,993 659
2014-08-20 2014-06-30 13F/A-1 BIOGEN IDEC Common Stock 09062X103 1,787 57 3.29 563 6.43 0.0048
2014-08-15 2014-06-30 13F BAIDU INC - SPON ADR Common Stock 09062X103 3,157 590
2014-05-15 2014-03-31 13F BIOGEN IDEC Common Stock 09062X103 1,730 -284 -14.10 529 -16.03 0.0052
2014-02-11 2013-12-31 13F BIOGEN IDEC Common Stock 09062X103 2,014 980 94.78 630 153.01 0.0064
2013-11-13 2013-09-30 13F BIOGEN IDEC Common Stock 09062X103 1,034 1,034 249 0.0028
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.