Latest Institutional Sells of Biogen Inc. (BIIB)
This list provides information on the latest institutional transactions involving Biogen Inc. (BIIB) stock that were sells. The list includes the name of the institution, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the sale has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Jan 08, 2026
Q4 2025
|
Nordea Investment Management Ab
Stockholm, V7 |
SELL
|
- |
-119K- 89.42% |
$16.9M - $19.9M
|
14K
$2.35M
|
|
|
Jan 22, 2026
Q4 2025
|
Robeco Institutional Asset Management B.V.
|
SELL
|
- |
-60.1K- 8.96% |
$8.56M - $10.1M
|
611K
$102M
|
|
|
Jan 23, 2026
Q4 2025
|
Sumitomo Mitsui Trust Holdings, Inc.
|
SELL
|
- |
-45K- 10.82% |
$6.4M - $7.54M
|
371K
$62.1M
|
|
|
Jan 26, 2026
Q4 2025
|
Mirae Asset Global Investments Co., Ltd.
|
SELL
|
- |
-31.9K- 47.61% |
$4.54M - $5.35M
|
35.1K
$5.88M
|
|
|
Jan 26, 2026
Q4 2025
|
Gf Fund Management Co. Ltd.
Guangzhou, F4 |
SELL
|
- |
-29.5K- 81.1% |
$4.2M - $4.95M
|
6.88K
$1.15M
|
|
|
Jan 28, 2026
Q4 2025
|
Universal Beteiligungs Und Servicegesellschaft Mb H
Frankfurt Am Main, 2M |
SELL
|
- |
-23.9K- 16.19% |
$3.4M - $4.01M
|
124K
$20.7M
|
|
|
Jan 28, 2026
Q4 2025
|
Teacher Retirement System Of Texas
Austin, TX |
SELL
|
- |
-14.3K- 37.85% |
$2.03M - $2.4M
|
23.5K
$3.94M
|
|
|
Jan 29, 2026
Q4 2025
|
Comerica Bank
|
SELL
|
- |
-14.2K- 42.16% |
$2.02M - $2.38M
|
19.5K
$3.26M
|
|
|
Jan 27, 2026
Q4 2025
|
Oversea Chinese Banking Corp LTD
Great Eastern Centre, U0 |
SELL
|
- |
-11.8K- 25.62% |
$1.68M - $1.98M
|
34.4K
$5.76M
|
|
|
Jan 16, 2026
Q4 2025
|
Louisiana State Employees Retirement System
|
SELL
|
- |
-10.9K- 59.24% |
$1.55M - $1.83M
|
7.5K
$1.26M
|
|
|
Jan 15, 2026
Q4 2025
|
Nisa Investment Advisors, LLC
|
SELL
|
- |
-9.12K- 19.18% |
$1.3M - $1.53M
|
38.4K
$6.44M
|
|
|
Jan 14, 2026
Q4 2025
|
Fluent Financial, LLC
|
SELL
|
- |
-6.4K- 25.05% |
$910K - $1.07M
|
19.1K
$3.21M
|
|
|
Jan 28, 2026
Q4 2025
|
China Universal Asset Management Co., Ltd.
Shanghai, F4 |
SELL
|
- |
-5.67K- 19.16% |
$806K - $949K
|
23.9K
$4.01M
|
|
|
Jan 15, 2026
Q4 2025
|
Mn Services Vermogensbeheer B.V.
|
SELL
|
- |
-3.3K- 12.41% |
$469K - $553K
|
23.3K
$3.9M
|
|
|
Jan 28, 2026
Q4 2025
|
Arizona State Retirement System
|
SELL
|
- |
-3.2K- 7.37% |
$455K - $536K
|
40.2K
$6.74M
|
|
|
Jan 15, 2026
Q4 2025
|
J. Safra Sarasin Holding Ag
Basel, V8 |
SELL
|
- |
-2.61K- 28.71% |
$371K - $437K
|
6.47K
$1.08M
|
|
|
Jan 28, 2026
Q4 2025
|
Calamos Advisors LLC
|
SELL
|
- |
-1.44K- 3.9% |
$205K - $242K
|
35.5K
$5.95M
|
|
|
Jan 21, 2026
Q4 2025
|
Yousif Capital Management, LLC
|
SELL
|
- |
-1.16K- 6.77% |
$164K - $194K
|
15.9K
$2.67M
|
|
|
Jan 06, 2026
Q4 2025
|
Board Of The Pension Protection Fund
Croydon, X0 |
SELL
|
- |
-1.1K- 78.57% |
$156K - $184K
|
300
$50.3K
|
|
|
Jan 23, 2026
Q4 2025
|
State Of Alaska, Department Of Revenue
|
SELL
|
- |
-995- 5.47% |
$142K - $167K
|
17.2K
$2.88M
|
|
|
Jan 29, 2026
Q4 2025
|
Impax Asset Management Group PLC
|
SELL
|
- |
-932- 2.82% |
$133K - $156K
|
32.1K
$5.38M
|
|
|
Jan 09, 2026
Q4 2025
|
Assenagon Asset Management S.A.
|
SELL
|
- |
-713- 10.31% |
$101K - $119K
|
6.2K
$1.04M
|
|
|
Jan 12, 2026
Q4 2025
|
E. Ohman J:Or Asset Management Ab
Stockholm, V7 |
SELL
|
- |
-680- 10.63% |
$96.7K - $114K
|
5.72K
$958K
|
|
|
Jan 16, 2026
Q4 2025
|
Trust CO Of Vermont
|
SELL
|
- |
-660- 62.92% |
$93.9K - $111K
|
389
$65.2K
|
|
|
Jan 21, 2026
Q4 2025
|
Flagship Harbor Advisors, LLC
|
SELL
|
- |
-607- 26.4% |
$86.4K - $102K
|
1.69K
$283K
|
|
|
Jan 23, 2026
Q4 2025
|
Patton Fund Management, Inc.
|
SELL
|
- |
-602- 32.61% |
$85.6K - $101K
|
1.24K
$208K
|
|
|
Jan 12, 2026
Q4 2025
|
Avanza Fonder Ab
Stockholm, V7 |
SELL
|
- |
-544- 3.56% |
$77.4K - $91.1K
|
14.7K
$2.47M
|
|
|
Jan 21, 2026
Q4 2025
|
Prime Capital Investment Advisors, LLC
Overland Park, KS |
SELL
|
- |
-525- 14.0% |
$74.7K - $88K
|
3.23K
$541K
|
|
|
Jan 27, 2026
Q4 2025
|
Asset Management One Co., Ltd.
|
SELL
|
- |
-454- 0.67% |
$64.6K - $76.1K
|
67.5K
$11.3M
|
|
|
Jan 14, 2026
Q4 2025
|
Hourglass Capital, LLC
|
SELL
|
- |
-420- 2.34% |
$59.7K - $70.4K
|
17.6K
$2.94M
|
|
|
Jan 05, 2026
Q4 2025
|
Park Avenue Securities LLC
|
SELL
|
- |
-417- 12.1% |
$59.3K - $69.9K
|
3.03K
$508K
|
|
|
Jan 26, 2026
Q4 2025
|
Whittier Trust CO
|
SELL
|
- |
-410- 34.86% |
$58.3K - $68.7K
|
766
$128K
|
|
|
Jan 27, 2026
Q4 2025
|
City State Bank
Norwalk, IA |
SELL
|
- |
-370- 53.47% |
$52.6K - $62K
|
322
$54K
|
|
|
Jan 14, 2026
Q4 2025
|
Exchange Traded Concepts, LLC
|
SELL
|
- |
-367- 14.97% |
$52.2K - $61.5K
|
2.08K
$349K
|
|
|
Jan 16, 2026
Q4 2025
|
Ronald Blue Trust, Inc.
Brentwood, TN |
SELL
|
- |
-362- 30.12% |
$51.5K - $60.7K
|
840
$141K
|
|
|
Jan 23, 2026
Q4 2025
|
Sage Mountain Advisors LLC
|
SELL
|
- |
-348- 14.56% |
$49.5K - $58.3K
|
2.04K
$342K
|
|
|
Jan 16, 2026
Q4 2025
|
Linden Thomas Advisory Services, LLC
Charlotte, NC |
SELL
|
- |
-329- 4.33% |
$46.8K - $55.1K
|
7.26K
$1.22M
|
|
|
Jan 16, 2026
Q4 2025
|
Banque Pictet & Cie Sa
|
SELL
|
- |
-305- 0.43% |
$43.4K - $51.1K
|
71.4K
$12M
|
|
|
Jan 14, 2026
Q4 2025
|
Beacon Investment Advisory Services, Inc.
|
SELL
|
- |
-256- 1.98% |
$36.4K - $42.9K
|
12.7K
$2.12M
|
|
|
Jan 29, 2026
Q4 2025
|
Camelot Portfolios, LLC
|
SELL
|
- |
-200- 9.52% |
$28.5K - $33.5K
|
1.9K
$318K
|
|
|
Jan 13, 2026
Q4 2025
|
Capital Investment Advisors, LLC
|
SELL
|
- |
-144- 6.71% |
$20.5K - $24.1K
|
2K
$335K
|
|
|
Jan 23, 2026
Q4 2025
|
Nbt Bank N A
|
SELL
|
- |
-108- 46.15% |
$15.4K - $18.1K
|
126
$21.1K
|
|
|
Jan 27, 2026
Q4 2025
|
Td Waterhouse Canada Inc.
Toronto, A6 |
SELL
|
- |
-106- 14.44% |
$15.1K - $17.8K
|
628
$105K
|
|
|
Jan 20, 2026
Q4 2025
|
Cidel Asset Management Inc
Toronto, Ontario, A6 |
SELL
|
- |
-85- 4.2% |
$12.1K - $14.2K
|
1.94K
$325K
|
|
|
Jan 28, 2026
Q4 2025
|
Citizens & Northern Corp
|
SELL
|
- |
-84- 1.2% |
$11.9K - $14.1K
|
6.91K
$1.16M
|
|
|
Jan 29, 2026
Q4 2025
|
Verdence Capital Advisors LLC
Hunt Valley, MD |
SELL
|
- |
-80- 5.36% |
$11.4K - $13.4K
|
1.41K
$237K
|
|
|
Jan 23, 2026
Q4 2025
|
Bsw Wealth Partners
Boulder, CO |
SELL
|
- |
-79- 3.97% |
$11.2K - $13.2K
|
1.91K
$320K
|
|
|
Jan 23, 2026
Q4 2025
|
Choreo, LLC
Minneapolis, MN |
SELL
|
- |
-67- 2.74% |
$9.53K - $11.2K
|
2.38K
$398K
|
|
|
Jan 15, 2026
Q4 2025
|
Retirement Systems Of Alabama
|
SELL
|
- |
-65- 0.21% |
$9.25K - $10.9K
|
31.2K
$5.23M
|
|
|
Jan 14, 2026
Q4 2025
|
First County Bank /Ct/
Stamford, CT |
SELL
|
- |
-65- 1.45% |
$9.25K - $10.9K
|
4.41K
$739K
|
|