Institutional Ownership Biogen Inc. (BIIB)
This table provides information about the institutional ownership of Biogen Inc. (BIIB). We have compiled data on the 1,018 institutions that hold shares in the stock, with a total of 131 Million shares, which have been reported (via 13F filing form) to have a value of $18.8 Billion.
| Holding | Report Date | shares Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
First Trust Advisors LP
Wheaton, IL |
Aug 13, 2025 Q2 2025 |
873,823
shares
|
$125 Million
0.09% of portfolio
|
Q2 2025
Added 32.11%
|
|
|
Price T Rowe Associates Inc
Baltimore, MD |
Aug 14, 2025 Q2 2025 |
833,927
shares
|
$120 Million
0.01% of portfolio
|
Q2 2025
Reduced 27.56%
|
|
|
Balyasny Asset Management LLC
Chicago, IL |
Aug 14, 2025 Q2 2025 |
831,905
shares
|
$119 Million
0.17% of portfolio
|
Q2 2025
Added 5.81%
|
|
|
Barclays PLC
London, X0 |
Aug 14, 2025 Q2 2025 |
797,655
shares
|
$115 Million
0.02% of portfolio
|
Q2 2025
Reduced 13.14%
|
|
|
Man Group PLC
London, X0 |
Aug 14, 2025 Q2 2025 |
793,282
shares
|
$114 Million
0.2% of portfolio
|
Q2 2025
Added 3.65%
|
|
|
Qube Research & Technologies LTD
London, X0 |
Aug 14, 2025 Q2 2025 |
743,309
shares
|
$107 Million
0.1% of portfolio
|
Q2 2025
Reduced 39.41%
|
|
|
Australian Super Pty LTD
|
Aug 01, 2025 Q2 2025 |
739,416
shares
|
$106 Million
0.48% of portfolio
|
Q2 2025
Added 85.92%
|
|
|
Massachusetts Financial Services CO
Boston, MA |
Aug 08, 2025 Q2 2025 |
717,631
shares
|
$103 Million
0.03% of portfolio
|
Q2 2025
Added 1.3%
|
|
|
Israel Englander
Millennium Management LLC | New York, Ny
|
Aug 14, 2025 Q2 2025 |
675,502
shares
|
$97 Million
0.04% of portfolio
|
Q2 2025
Added 59.32%
|
|
|
Goldman Sachs Group Inc
New York, NY |
Aug 14, 2025 Q2 2025 |
670,852
shares
|
$96.3 Million
0.01% of portfolio
|
Q2 2025
Added 10.94%
|
|
|
Arrowstreet Capital, Limited Partnership
Boston, MA |
Aug 13, 2025 Q2 2025 |
624,371
shares
|
$89.7 Million
0.06% of portfolio
|
Q2 2025
Added 190.7%
|
|
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
Aug 14, 2025 Q2 2025 |
608,590
shares
|
$87.4 Million
0.01% of portfolio
|
Q2 2025
Added 12.33%
|
|
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
Aug 14, 2025 Q2 2025 |
594,099
shares
|
$85.3 Million
0.01% of portfolio
|
Q2 2025
Added 121.37%
|
|
|
Amundi
Paris, I0 |
Aug 13, 2025 Q2 2025 |
579,797
shares
|
$83.3 Million
0.03% of portfolio
|
Q2 2025
Reduced 55.94%
|
|
|
Allianz Asset Management Gmb H
Munich, 2M |
Jul 28, 2025 Q2 2025 |
527,060
shares
|
$75.7 Million
0.09% of portfolio
|
Q2 2025
Reduced 21.07%
|
|
|
Alyeska Investment Group, L.P.
Chicago, IL |
Aug 14, 2025 Q2 2025 |
508,773
shares
|
$73.1 Million
0.25% of portfolio
|
Q2 2025
New holding
|
|
|
Two Sigma Investments, LP
New York, NY |
Aug 14, 2025 Q2 2025 |
507,539
shares
|
$72.9 Million
0.13% of portfolio
|
Q2 2025
Reduced 42.28%
|
|
|
Royal Bank Of Canada
Toronto, A6 |
Aug 14, 2025 Q2 2025 |
496,152
shares
|
$71.2 Million
0.01% of portfolio
|
Q2 2025
Added 50.09%
|
|
|
Causeway Capital Management LLC
Los Angeles, CA |
Aug 13, 2025 Q2 2025 |
493,355
shares
|
$70.8 Million
1.44% of portfolio
|
Q2 2025
Added 13.8%
|
|
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
Aug 14, 2025 Q2 2025 |
455,500
shares
|
$65.4 Million
0.12% of portfolio
|
Q2 2025
Reduced 32.76%
|
|
|
Robeco Institutional Asset Management B.V.
|
Jul 18, 2025 Q2 2025 |
448,757
shares
|
$64.4 Million
0.09% of portfolio
|
Q2 2025
Reduced 1.05%
|
|
|
Ubs Group Ag
|
Aug 14, 2025 Q2 2025 |
445,684
shares
|
$64 Million
0.01% of portfolio
|
Q2 2025
Reduced 31.02%
|
|
|
Hsbc Holdings PLC
London, X0 |
Aug 13, 2025 Q2 2025 |
443,269
shares
|
$63.7 Million
0.03% of portfolio
|
Q2 2025
Reduced 8.42%
|
|
|
Sumitomo Mitsui Trust Holdings, Inc.
|
Jul 31, 2025 Q2 2025 |
414,830
shares
|
$59.6 Million
0.03% of portfolio
|
Q2 2025
Reduced 0.51%
|
|
|
Swiss National Bank
Zurich, V8 |
May 12, 2025 Q1 2025 |
411,000
shares
|
$59 Million
0.04% of portfolio
|
Q1 2025
Reduced 0.12%
|