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Biogen
BIIB

1,104 hedge funds and large institutions have $43.5B invested in Biogen in 2021 Q2 according to their latest regulatory filings, with 136 funds opening new positions, 324 increasing their positions, 468 reducing their positions, and 110 closing their positions.

New
Increased
Maintained
Reduced
Closed

108% more funds holding in top 10

Funds holding in top 10: 13 → 27 (+14)

24% more first-time investments, than exits

New positions opened: 136 | Existing positions closed: 110

22% more capital invested

Capital invested by funds: $35.7B → $43.5B (+$7.81B)

1% more funds holding

Funds holding: 1,093 → 1,104 (+11)

0.17% less ownership

Funds ownership: 83.93% → 83.76% (-0.17%)

6% less call options, than puts

Call options by funds: $1.8B | Put options by funds: $1.91B

31% less repeat investments, than reductions

Existing positions increased: 324 | Existing positions reduced: 468

Holders
1,104
Holders Change
+11
Holders Change %
+1.01%
% of All Funds
19.22%
Holding in Top 10
27
Holding in Top 10 Change
+14
Holding in Top 10 Change %
+107.69%
% of All Funds
0.47%
New
136
Increased
324
Reduced
468
Closed
110
Calls
$1.8B
Puts
$1.91B
Net Calls
-$111M
Net Calls Change
-$185M

Top Buyers

1
JP Morgan Chase
JP Morgan Chase
New York
+$445M
2
Marshall Wace
Marshall Wace
United Kingdom
+$148M
3
SC
Samlyn Capital
New York
+$114M
4
Citadel Advisors
Citadel Advisors
Florida
+$101M
5
HM
HealthCor Management
New York
+$78.4M

Top Sellers

1
Renaissance Technologies
Renaissance Technologies
New York
-$184M
2
Berkshire Hathaway
Berkshire Hathaway
Nebraska
-$180M
3
Fidelity Investments
Fidelity Investments
Massachusetts
-$171M
4
LSV Asset Management
LSV Asset Management
Illinois
-$169M
5
SAM
Southeastern Asset Management
Tennessee
-$169M
Name Holding Trade Value Shares
Change 		Change in
Stake
Cetera Investment Advisers
476
Cetera Investment Advisers
Illinois
$1.51M +$68.8K +227 +5%
HVM
477
Harvest Volatility Management
Connecticut
$1.5M +$307K +1,013 +31%
ASN
478
Advisory Services Network
Georgia
$1.49M -$74.8K -247 -5%
CG
479
Caprock Group
Idaho
$1.49M -$97.2K -321 -7%
WB
480
WesBanco Bank
West Virginia
$1.49M +$3.94K +13 +0.3%
ACM
481
Argent Capital Management
Missouri
$1.48M -$14.2M -46,908 -92%
IRF
482
IBM Retirement Fund
New York
$1.47M -$303K -1,001 -19%
Fuller & Thaler Asset Management
483
Fuller & Thaler Asset Management
California
$1.46M -$212K -700 -14%
SWP
484
Stratos Wealth Partners
Ohio
$1.46M +$59.1K +195 +5%
IHL
485
Investment House LLC
California
$1.46M – – –
CP
486
Camelot Portfolios
Ohio
$1.45M -$308K -1,017 -20%
BAM
487
Belpointe Asset Management
Nevada
$1.45M +$352K +1,162 +39%
MFAM
488
Motley Fool Asset Management
Virginia
$1.43M +$270K +892 +28%
SF
489
Synovus Financial
Georgia
$1.43M -$28.8K -95 -2%
Los Angeles Capital Management
490
Los Angeles Capital Management
California
$1.42M -$11.2M -37,107 -90%
WI
491
WrapManager Inc
California
$1.42M +$10K +33 +0.8%
NAM
492
NorthCoast Asset Management
Connecticut
$1.39M -$10.3K -34 -0.8%
ECM
493
Estabrook Capital Management
New York
$1.39M -$1.51M -5,000 -56%
CK
494
Cohen Klingenstein
New York
$1.39M – – –
SM
495
Sabby Management
Florida
$1.39M +$1.21M +4,000 New
TYCC
496
Texas Yale Capital Corp
Florida
$1.38M – – –
Tudor Investment Corp
497
Tudor Investment Corp
Connecticut
$1.38M +$1.21M +3,989 New
DTL
498
Dynamic Technology Lab
Singapore
$1.38M +$1.21M +3,983 New
AI
499
Atria Investments
North Carolina
$1.37M -$697K -2,300 -37%
EF
500
Empirical Finance
Pennsylvania
$1.37M -$1.61M -5,325 -57%
18 19
20
21 22

BIIB Hedge Fund Activity: Q2 2021 in Review

1,104 of the 5,745 institutional investors tracked by Wall St. Rank reported a position in Biogen (BIIB) for Q2 2021, worth a combined $43.5B — up 22% from $35.7B a quarter earlier.

Buyers outnumbered sellers: 136 funds opened new BIIB positions and 110 closed out — a net gain of 26 holders — while 324 added to existing stakes and 468 trimmed.

The largest buyer was JP Morgan Chase, adding an estimated $445M. The largest seller was Renaissance Technologies, cutting an estimated $184M.

  • 1,104 institutional investors held Biogen (BIIB) as of Q2 2021, up from 1,093 in Q1 2021.
  • Funds reported $43.5B of Biogen stock for Q2 2021, up 22% quarter-over-quarter.
  • 136 funds opened new Biogen positions in Q2 2021 and 110 closed out, a net change of +26 holders.
  • The largest Biogen buyer in Q2 2021 was JP Morgan Chase, an estimated $445M added.
  • The largest Biogen seller in Q2 2021 was Renaissance Technologies, an estimated $184M sold.

Based on aggregated 13F filings for Q2 2021.