Latest Institutional Purchases of Biogen Inc. (BIIB)
This list provides information on the latest institutional transactions involving Biogen Inc. (BIIB) stock that were buys. 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 purchase has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Nov 14, 2025
Q3 2025
|
Ameriprise Financial Inc
Minneapolis, MN |
BUY
|
- |
19.4K+ 15.35% |
$2.37M - $2.88M
|
145K
$24.4M
|
|
|
Nov 12, 2025
Q3 2025
|
Handelsbanken Fonder Ab
|
BUY
|
- |
19.1K+ 23.75% |
$2.34M - $2.84M
|
99.3K
$16.6M
|
|
|
Nov 14, 2025
Q3 2025
|
Nomura Holdings Inc
Tokyo, M0 |
BUY
|
PUT |
19K+ 316.67% |
$2.33M - $2.83M
|
25K
$4.19M
|
|
|
Nov 17, 2025
Q3 2025
|
Morningstar Investment Management LLC
Chicago, IL |
BUY
|
- |
18.8KNew |
$2.3M - $2.8M
|
18.8K
$3.15M
|
|
|
Oct 15, 2025
Q3 2025
|
Swedbank Ab
Stockholm, V7 |
BUY
|
- |
18.7K+ 8.76% |
$2.3M - $2.79M
|
232K
$38.9M
|
|
|
Nov 10, 2025
Q3 2025
|
Td Asset Management Inc
|
BUY
|
- |
18.2K+ 12.7% |
$2.23M - $2.7M
|
161K
$27M
|
|
|
Nov 13, 2025
Q3 2025
|
Twin Tree Management, LP
Dallas, TX |
BUY
|
PUT |
17.4K+ 259.7% |
$2.13M - $2.59M
|
24.1K
$4.04M
|
|
|
Nov 14, 2025
Q3 2025
|
Suvretta Capital Management, LLC
New York, NY |
BUY
|
- |
16.3K+ 10.73% |
$2M - $2.43M
|
168K
$28.2M
|
|
|
Dec 18, 2025
Q3 2025
|
Aia Group LTD
Hong Kong, K3 |
BUY
|
- |
15.3K+ 223.42% |
$1.88M - $2.28M
|
22.2K
$3.71M
|
|
|
Nov 14, 2025
Q3 2025
|
Ossiam
Paris, I0 |
BUY
|
- |
15.1K+ 29.94% |
$1.85M - $2.25M
|
65.6K
$11M
|
|
|
Nov 14, 2025
Q3 2025
|
Quantinno Capital Management LP
New York, NY |
BUY
|
- |
13.7K+ 25.27% |
$1.68M - $2.04M
|
67.9K
$11.4M
|
|
|
Nov 14, 2025
Q3 2025
|
Creative Planning
Overland Park, KS |
BUY
|
- |
13.2K+ 23.78% |
$1.62M - $1.96M
|
68.6K
$11.5M
|
|
|
Nov 10, 2025
Q3 2025
|
Mitsubishi Ufj Kokusai Asset Management Co., Ltd.
|
BUY
|
- |
13.1K+ 4.46% |
$1.61M - $1.95M
|
307K
$51.5M
|
|
|
Nov 14, 2025
Q3 2025
|
Manufacturers Life Insurance Company, The
Toronto, A6 |
BUY
|
- |
13.1K+ 12.16% |
$1.61M - $1.95M
|
121K
$20.2M
|
|
|
Nov 12, 2025
Q3 2025
|
Nomura Asset Management CO LTD
Tokyo, M0 |
BUY
|
- |
13K+ 23.97% |
$1.6M - $1.94M
|
67.4K
$11.3M
|
|
|
Nov 14, 2025
Q3 2025
|
Adar1 Capital Management, LLC
Austin, TX |
BUY
|
- |
12.9K+ 252.94% |
$1.58M - $1.92M
|
18K
$3.02M
|
|
|
Oct 15, 2025
Q3 2025
|
Cwm, LLC
|
BUY
|
- |
12.7K+ 36.44% |
$1.55M - $1.89M
|
47.5K
$7.95M
|
|
|
Nov 14, 2025
Q3 2025
|
Isam Funds (Uk) LTD
London, X0 |
BUY
|
- |
12.7K+ 279.91% |
$1.55M - $1.89M
|
17.2K
$2.88M
|
|
|
Nov 13, 2025
Q3 2025
|
Comerica Bank
|
BUY
|
- |
12.6K+ 59.51% |
$1.54M - $1.87M
|
33.7K
$5.64M
|
|
|
Nov 03, 2025
Q3 2025
|
National Pension Service
Jeonju Si, Jeollabuk Do, M5 |
BUY
|
- |
12.1K+ 4.45% |
$1.49M - $1.81M
|
285K
$47.8M
|
|
|
Nov 03, 2025
Q3 2025
|
Australian Super Pty LTD
|
BUY
|
- |
12K+ 1.62% |
$1.47M - $1.78M
|
751K
$126M
|
|
|
Oct 29, 2025
Q3 2025
|
Massachusetts Financial Services CO
Boston, MA |
BUY
|
- |
11.7K+ 1.63% |
$1.43M - $1.74M
|
729K
$122M
|
|
|
Nov 14, 2025
Q3 2025
|
Mariner, LLC
Overland Park, KS |
BUY
|
- |
11.6K+ 32.3% |
$1.42M - $1.73M
|
47.5K
$7.96M
|
|
|
Nov 13, 2025
Q3 2025
|
Swiss National Bank
Zurich, V8 |
BUY
|
- |
11.4K+ 2.77% |
$1.4M - $1.7M
|
422K
$70.8M
|
|
|
Nov 05, 2025
Q3 2025
|
Oppenheimer & CO Inc
New York, NY |
BUY
|
- |
11.3K+ 501.15% |
$1.39M - $1.69M
|
13.6K
$2.28M
|
|
|
Nov 13, 2025
Q3 2025
|
Wells Fargo & Company
San Francisco, CA |
BUY
|
- |
10.3K+ 6.21% |
$1.26M - $1.53M
|
176K
$29.5M
|
|
|
Nov 14, 2025
Q3 2025
|
Capula Management LTD
Grand Cayman, E9 |
BUY
|
- |
10.2KNew |
$1.25M - $1.52M
|
10.2K
$1.71M
|
|
|
Nov 10, 2025
Q3 2025
|
K.J. Harrison & Partners Inc
|
BUY
|
- |
10KNew |
$1.23M - $1.49M
|
10K
$1.68M
|
|
|
Nov 14, 2025
Q3 2025
|
Krensavage Asset Management, LLC
New York, NY |
BUY
|
- |
10KNew |
$1.23M - $1.49M
|
10K
$1.68M
|
|
|
Nov 04, 2025
Q3 2025
|
Convergence Investment Partners, LLC
|
BUY
|
- |
9.58KNew |
$1.18M - $1.43M
|
9.58K
$1.61M
|
|
|
Nov 03, 2025
Q3 2025
|
Great Lakes Advisors, LLC
Chicago, IL |
BUY
|
- |
9.48KNew |
$1.16M - $1.41M
|
9.48K
$1.59M
|
|
|
Oct 28, 2025
Q3 2025
|
Sequoia Financial Advisors, LLC
|
BUY
|
- |
9.1KNew |
$1.12M - $1.35M
|
9.1K
$1.52M
|
|
|
Nov 14, 2025
Q3 2025
|
Shay Capital LLC
New York, NY |
BUY
|
- |
9KNew |
$1.1M - $1.34M
|
9K
$1.51M
|
|
|
Nov 06, 2025
Q3 2025
|
Baader Bank Aktiengesellschaft
Unterschleissheim, 2M |
BUY
|
PUT |
8.2KNew |
$1.01M - $1.22M
|
8.2K
$1.37M
|
|
|
Nov 13, 2025
Q3 2025
|
Baird Financial Group, Inc.
Milwaukee, WI |
BUY
|
- |
8.08K+ 172.8% |
$991K - $1.2M
|
12.7K
$2.14M
|
|
|
Nov 14, 2025
Q3 2025
|
Bank Of Nova Scotia
|
BUY
|
- |
8.02K+ 49.08% |
$984K - $1.19M
|
24.4K
$4.08M
|
|
|
Nov 12, 2025
Q3 2025
|
Generali Investments, Management CO LLC
Ljubljana, 2A |
BUY
|
- |
8.01K+ 408.15% |
$982K - $1.19M
|
9.97K
$1.67M
|
|
|
Nov 14, 2025
Q3 2025
|
Cetera Investment Advisers
Schaumburg, IL |
BUY
|
- |
8K+ 62.07% |
$981K - $1.19M
|
20.9K
$3.5M
|
|
|
Nov 06, 2025
Q3 2025
|
Krilogy Financial LLC
|
BUY
|
- |
7.71KNew |
$945K - $1.15M
|
7.71K
$1.29M
|
|
|
Nov 14, 2025
Q3 2025
|
Parallax Volatility Advisers, L.P.
San Francisco, CA |
BUY
|
CALL |
7.5KNew |
$920K - $1.12M
|
7.5K
$1.26M
|
|
|
Nov 13, 2025
Q3 2025
|
Edmond De Rothschild Holding S.A.
Chambesy, V8 |
BUY
|
- |
7.29K+ 12.22% |
$894K - $1.09M
|
67K
$11.2M
|
|
|
Nov 13, 2025
Q3 2025
|
Landscape Capital Management, L.L.C.
|
BUY
|
- |
7.12KNew |
$874K - $1.06M
|
7.12K
$1.19M
|
|
|
Nov 13, 2025
Q3 2025
|
Aviva PLC
|
BUY
|
- |
7.03K+ 6.47% |
$863K - $1.05M
|
116K
$19.4M
|
|
|
Nov 14, 2025
Q3 2025
|
Verition Fund Management LLC
Greenwich, CT |
BUY
|
- |
6.72K+ 28.84% |
$825K - $1M
|
30K
$5.03M
|
|
|
Oct 15, 2025
Q3 2025
|
Vontobel Holding Ltd.
|
BUY
|
- |
6.54K+ 48.63% |
$802K - $973K
|
20K
$3.35M
|
|
|
Nov 13, 2025
Q3 2025
|
Orion Investment CO
St. Louis, MO |
BUY
|
- |
6.53K+ 19.84% |
$801K - $972K
|
39.4K
$6.61M
|
|
|
Nov 14, 2025
Q3 2025
|
New Edge Advisors, LLC
New Orleans, LA |
BUY
|
- |
6.47K+ 241.86% |
$793K - $962K
|
9.14K
$1.53M
|
|
|
Nov 14, 2025
Q3 2025
|
Alliancebernstein L.P.
New York, NY |
BUY
|
- |
6.17K+ 2.67% |
$757K - $918K
|
237K
$39.8M
|
|
|
Nov 03, 2025
Q3 2025
|
Mirae Asset Global Investments Co., Ltd.
|
BUY
|
- |
5.99K+ 9.81% |
$734K - $891K
|
67K
$11.2M
|
|
|
Nov 14, 2025
Q3 2025
|
Holocene Advisors, LP
New York, NY |
BUY
|
- |
5.98KNew |
$734K - $890K
|
5.98K
$1M
|
|