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 |
|---|---|---|---|---|---|---|---|
|
Nov 06, 2025
Q3 2025
|
Abrdn PLC
|
SELL
|
- |
-17.9K- 11.41% |
$2.19M - $2.66M
|
139K
$23.3M
|
|
|
Nov 12, 2025
Q3 2025
|
Thompson Siegel & Walmsley LLC
|
SELL
|
- |
-16.6K- 5.13% |
$2.03M - $2.47M
|
306K
$51.3M
|
|
|
Nov 13, 2025
Q3 2025
|
Canada Pension Plan Investment Board
Toronto Ontario, A6 |
SELL
|
- |
-15.8K- 6.19% |
$1.94M - $2.35M
|
239K
$40.1M
|
|
|
Nov 14, 2025
Q3 2025
|
Point72 (Difc) LTD
Dubai, C0 |
SELL
|
- |
-15.5K- 95.26% |
$1.91M - $2.31M
|
772
$129K
|
|
|
Nov 13, 2025
Q3 2025
|
Entropy Technologies, LP
New York, NY |
SELL
|
- |
-14.9K- 86.06% |
$1.83M - $2.22M
|
2.41K
$404K
|
|
|
Nov 13, 2025
Q3 2025
|
Hudson Bay Capital Management LP
Greenwich, CT |
SELL
|
- |
-14.6K- 5.45% |
$1.79M - $2.17M
|
253K
$42.4M
|
|
|
Nov 13, 2025
Q3 2025
|
Peak6 LLC
Chicago, IL |
SELL
|
PUT |
-13.9K- 15.17% |
$1.71M - $2.07M
|
77.7K
$13M
|
|
|
Oct 23, 2025
Q3 2025
|
Sg Americas Securities, LLC
|
SELL
|
- |
-12.8K- 56.8% |
$1.57M - $1.9M
|
9.71K
$1.63M
|
|
|
Nov 12, 2025
Q3 2025
|
Ken Fisher
Fisher Asset Management, LLC | Camas, Wa
|
SELL
|
- |
-11.9K- 4.1% |
$1.45M - $1.76M
|
277K
$46.5M
|
|
|
Nov 14, 2025
Q3 2025
|
Paul Tudor Jones
Tudor Investment Corp Et Al | Stamford, Ct
|
SELL
|
PUT |
-11.6K- 33.62% |
$1.42M - $1.73M
|
22.9K
$3.84M
|
|
|
Nov 06, 2025
Q3 2025
|
Rhumbline Advisers
Boston, MA |
SELL
|
- |
-10.9K- 3.65% |
$1.34M - $1.63M
|
289K
$48.5M
|
|
|
Nov 12, 2025
Q3 2025
|
American Century Companies Inc
Kansas City, MO |
SELL
|
- |
-10.9K- 13.37% |
$1.33M - $1.62M
|
70.4K
$11.8M
|
|
|
Nov 03, 2025
Q3 2025
|
Quest Partners LLC
New York, NY |
SELL
|
- |
-10.8K- 96.64% |
$1.32M - $1.61M
|
375
$62.8K
|
|
|
Nov 14, 2025
Q3 2025
|
Natixis
Paris, I0 |
SELL
|
- |
-10.7K- 30.89% |
$1.32M - $1.6M
|
24K
$4.03M
|
|
|
Oct 22, 2025
Q3 2025
|
Commonwealth Equity Services, LLC
|
SELL
|
- |
-10.5K- 36.9% |
$1.29M - $1.57M
|
18K
$3.02M
|
|
|
Nov 14, 2025
Q3 2025
|
Cubist Systematic Strategies, LLC
Stamford, CT |
SELL
|
PUT |
-10.1K- 46.98% |
$1.24M - $1.5M
|
11.4K
$1.91M
|
|
|
Nov 12, 2025
Q3 2025
|
Nuveen, LLC
Charlotte, NC |
SELL
|
- |
-9.2K- 2.69% |
$1.13M - $1.37M
|
332K
$55.7M
|
|
|
Nov 14, 2025
Q3 2025
|
Walleye Trading LLC
Plymouth, MN |
SELL
|
PUT |
-8.4K- 72.41% |
$1.03M - $1.25M
|
3.2K
$536K
|
|
|
Nov 13, 2025
Q3 2025
|
Healthcare Of Ontario Pension Plan Trust Fund
Toronto, A6 |
SELL
|
- |
-8.29K- 14.74% |
$1.02M - $1.23M
|
47.9K
$8.03M
|
|
|
Nov 14, 2025
Q3 2025
|
Toronto Dominion Bank
Toronto, Ontario, A6 |
SELL
|
- |
-7.93K- 11.85% |
$973K - $1.18M
|
59K
$9.88M
|
|
|
Nov 14, 2025
Q3 2025
|
Shelton Capital Management
Denver, CO |
SELL
|
- |
-7.92K- 45.62% |
$972K - $1.18M
|
9.44K
$1.58M
|
|
|
Nov 13, 2025
Q3 2025
|
Van Eck Associates Corp
|
SELL
|
- |
-7.88K- 0.73% |
$967K - $1.17M
|
1.07M
$179M
|
|
|
Oct 09, 2025
Q3 2025
|
Voya Investment Management LLC
Atlanta, GA |
SELL
|
- |
-6.93K- 9.87% |
$850K - $1.03M
|
63.3K
$10.6M
|
|
|
Nov 12, 2025
Q3 2025
|
Jefferies Financial Group Inc.
New York, NY |
SELL
|
- |
-6.52K- 17.56% |
$800K - $970K
|
30.6K
$5.13M
|
|
|
Nov 14, 2025
Q3 2025
|
Caption Management, LLC
Oklahoma City, OK |
SELL
|
- |
-6K- 54.55% |
$736K - $893K
|
5K
$838K
|
|
|
Nov 10, 2025
Q3 2025
|
Fox Run Management, L.L.C.
Greenwich, CT |
SELL
|
- |
-5.92K- 45.94% |
$727K - $881K
|
6.97K
$1.17M
|
|
|
Oct 27, 2025
Q3 2025
|
Grimes & Company, Inc.
|
SELL
|
- |
-5.73K- 13.96% |
$703K - $852K
|
35.3K
$5.91M
|
|
|
Nov 12, 2025
Q3 2025
|
Simplex Trading, LLC
|
SELL
|
- |
-5.48K- 83.09% |
$673K - $816K
|
1.12K
$187K
|
|
|
Nov 14, 2025
Q3 2025
|
Boothbay Fund Management, LLC
New York, NY |
SELL
|
- |
-5.42K- 49.64% |
$665K - $807K
|
5.5K
$922K
|
|
|
Nov 05, 2025
Q3 2025
|
Twin Capital Management Inc
|
SELL
|
- |
-5.25K- 43.59% |
$644K - $781K
|
6.79K
$1.14M
|
|
|
Nov 14, 2025
Q3 2025
|
Motley Fool Asset Management LLC
Alexandria, VA |
SELL
|
- |
-5.11K- 68.15% |
$627K - $760K
|
2.39K
$400K
|
|
|
Oct 28, 2025
Q3 2025
|
Campbell & CO Investment Adviser LLC
Baltimore, MD |
SELL
|
- |
-4.67K- 69.02% |
$572K - $694K
|
2.09K
$351K
|
|
|
Nov 05, 2025
Q3 2025
|
Candriam S.C.A.
|
SELL
|
- |
-4.49K- 2.75% |
$551K - $669K
|
159K
$26.6M
|
|
|
Nov 13, 2025
Q3 2025
|
Acadian Asset Management LLC
Boston, MA |
SELL
|
- |
-4.21K- 2.11% |
$517K - $627K
|
195K
$32.7M
|
|
|
Nov 14, 2025
Q3 2025
|
Squarepoint Ops LLC
New York, NY |
SELL
|
PUT |
-4.2K- 53.85% |
$515K - $625K
|
3.6K
$603K
|
|
|
Nov 13, 2025
Q3 2025
|
Inceptionr LLC
Lafayette, CA |
SELL
|
- |
-4.2K- 44.19% |
$515K - $625K
|
5.3K
$888K
|
|
|
Oct 07, 2025
Q3 2025
|
Assenagon Asset Management S.A.
|
SELL
|
- |
-4.02K- 36.79% |
$494K - $599K
|
6.91K
$1.16M
|
|
|
Nov 14, 2025
Q3 2025
|
California State Teachers Retirement System
West Sacramento, CA |
SELL
|
- |
-3.87K- 1.62% |
$475K - $576K
|
235K
$39.3M
|
|
|
Nov 12, 2025
Q3 2025
|
Brinker Capital Investments, LLC
|
SELL
|
- |
-3.76K- 43.78% |
$461K - $559K
|
4.83K
$809K
|
|
|
Nov 14, 2025
Q3 2025
|
Hillman Capital Management, Inc.
Bethesda, MD |
SELL
|
- |
-3.62K- 8.62% |
$444K - $539K
|
38.4K
$6.43M
|
|
|
Oct 01, 2025
Q3 2025
|
Farmers Trust CO
|
SELL
|
- |
-3.56K- 12.04% |
$436K - $529K
|
26K
$4.35M
|
|
|
Nov 14, 2025
Q3 2025
|
State Board Of Administration Of Florida Retirement System
|
SELL
|
- |
-3.46K- 2.56% |
$424K - $515K
|
131K
$22M
|
|
|
Oct 23, 2025
Q3 2025
|
Nisa Investment Advisors, LLC
|
SELL
|
- |
-3.35K- 6.57% |
$410K - $498K
|
47.6K
$7.97M
|
|
|
Nov 13, 2025
Q3 2025
|
Banque Cantonale Vaudoise
|
SELL
|
- |
-3.34K- 18.05% |
$409K - $496K
|
15.1K
$2.54M
|
|
|
Nov 13, 2025
Q3 2025
|
Ensign Peak Advisors, Inc
Salt Lake City, UT |
SELL
|
- |
-3.33K- 8.73% |
$408K - $495K
|
34.8K
$5.83M
|
|
|
Nov 10, 2025
Q3 2025
|
China Universal Asset Management Co., Ltd.
Shanghai, F4 |
SELL
|
- |
-3.19K- 9.73% |
$391K - $474K
|
29.6K
$4.95M
|
|
|
Oct 30, 2025
Q3 2025
|
Teacher Retirement System Of Texas
Austin, TX |
SELL
|
- |
-3.18K- 7.77% |
$390K - $474K
|
37.8K
$6.33M
|
|
|
Nov 14, 2025
Q3 2025
|
Ostrum Asset Management
Paris, I0 |
SELL
|
- |
-3.07K- 21.12% |
$376K - $456K
|
11.5K
$1.92M
|
|
|
Nov 05, 2025
Q3 2025
|
Profund Advisors LLC
|
SELL
|
- |
-3.04K- 11.2% |
$373K - $453K
|
24.1K
$4.04M
|
|
|
Nov 07, 2025
Q3 2025
|
Shell Asset Management CO
The Hague, P7 |
SELL
|
- |
-2.99K- 35.45% |
$367K - $445K
|
5.45K
$913K
|
|