Biogen Inc.
US ˙ NasdaqGS ˙ US09062X1037

SecurityBIIB / Biogen Inc.
InstitutionWELLS FARGO VARIABLE TRUST - Wells Fargo VT Index Asset Allocation Fund Class 2
Latest Disclosed Ownership115 shares
Latest Disclosed Value $ 14,442
WELLS FARGO VARIABLE TRUST - Wells Fargo VT Index Asset Allocation Fund Class 2 reports 4.17% decrease in ownership of BIIB / Biogen Inc.

On August 26, 2025 - WELLS FARGO VARIABLE TRUST - Wells Fargo VT Index Asset Allocation Fund Class 2 filed a NPORT-P form disclosing ownership of 115 shares of Biogen Inc. (US:BIIB) valued at $14,443 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 27, 2025 disclosing 120 shares of Biogen Inc.. This represents a change in shares of -4.17% during the quarter. The current value of the position is $22,464 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)
2025-08-26 2025-06-30 NP Biogen EC US09062X1037 115 -5 -4.17 14 -12.50 0.0213
2025-05-27 2025-03-31 NP Biogen EC US09062X1037 120 -4 -3.23 16 -11.11 0.0247
2025-02-26 2024-12-31 NP Biogen EC US09062X1037 124 -8 -6.06 19 -28.00 0.0271
2024-11-25 2024-09-30 NP Biogen EC US09062X1037 132 -3 -2.22 26 -19.35 0.0353
2024-08-26 2024-06-30 NP Biogen EC US09062X1037 135 -3 -2.17 31 6.90 0.0448
2024-05-28 2024-03-31 NP Biogen EC US09062X1037 138 -7 -4.83 30 -21.62 0.0427
2024-02-28 2023-12-31 NP Biogen EC US09062X1037 145 -3 -2.03 38 -2.63 0.0563
2023-11-22 2023-09-30 NP Biogen EC US09062X1037 148 -17 -10.30 38 -19.15 0.0612
2023-08-28 2023-06-30 NP Biogen EC US09062X1037 165 1 0.61 47 4.44 0.0709
2023-05-25 2023-03-31 NP Biogen EC US09062X1037 164 -3 -1.80 46 -2.17 0.0707
2023-02-24 2022-12-31 NP Biogen EC US09062X1037 167 -4 -2.34 46 2.22 0.0739
2022-11-29 2022-09-30 NP BIOGEN INC USD.0005 EC US09062X1037 171 -6 -3.39 46 25.00 0.0745
2022-08-29 2022-06-30 NP BIOGEN INC USD.0005 EC US09062X1037 177 -5 -2.75 36 -5.26 0.0549
2022-05-31 2022-03-31 NP BIOGEN INC USD.0005 EC US09062X1037 182 -5 -2.67 38 -13.64 0.0502
2022-02-28 2021-12-31 NP BIOGEN INC USD.0005 EC US09062X1037 187 -10 -5.08 45 -20.00 0.0540
2021-11-24 2021-09-30 NP BIOGEN INC USD.0005 EC US09062X1037 197 -10 -4.83 56 -22.54 0.0693
2021-08-27 2021-06-30 NP BIOGEN INC USD.0005 EC US09062X1037 207 -14 -6.33 72 16.39 0.0874
2021-06-01 2021-03-31 NP BIOGEN INC USD.0005 EC US09062X1037 221 -15 -6.36 62 7.02 0.0779
2021-03-01 2020-12-31 NP BIOGEN INC USD.0005 EC US09062X1037 236 -22 -8.53 58 -21.92 0.0733
2020-11-25 2020-09-30 NP BIOGEN INC USD.0005 EC US09062X1037 258 -18 -6.52 73 0.00 0.0982
2020-08-28 2020-06-30 NP BIOGEN INC USD.0005 EC US09062X1037 276 -14 -4.83 74 -19.78 0.1037
2020-05-28 2020-03-31 NP BIOGEN INC USD.0005 EC US09062X1037 290 -6 -2.03 92 4.60 0.1436
2020-02-28 2019-12-31 NP BIOGEN INC USD.0005 EC 09062X103 296 -26 -8.07 88 17.57 0.1216
2019-11-26 2019-09-30 NP BIOGEN INC USD.0005 EC US09062X1037 322 322 75 0.1038
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.