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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
SCM
701
Southport Capital Management
Tennessee
$427K +$24.2K +80 +7%
VEA
702
Virtus ETF Advisers
New York
$426K -$400K -1,321 -52%
PAS
703
Park Avenue Securities
New York
$426K -$80.9K -267 -18%
TCM
704
Tributary Capital Management
Nebraska
$426K -$15.1K -50 -4%
LIA
705
LS Investment Advisors
Michigan
$425K -$1.02M -3,355 -73%
WPA
706
Winning Points Advisors
Florida
$422K – – –
NGA
707
Naples Global Advisors
Florida
$419K – – –
VFA
708
Valeo Financial Advisors
Indiana
$418K -$14.5K -48 -4%
FSA
709
Fort Sheridan Advisors
Illinois
$416K – – –
AIC
710
Archer Investment Corporation
Indiana
$416K -$303K -1,000 -45%
FFN
711
Focus Financial Network
Minnesota
$416K -$5.45K -18 -1%
WJWM
712
Williams Jones Wealth Management
New York
$411K -$1.51K -5 -0.4%
GF
713
Gries Financial
Ohio
$411K – – –
LP
714
LGL Partners
Pennsylvania
$407K -$36.4K -120 -9%
FFA
715
Founders Financial Alliance
North Carolina
$407K +$6.67K +22 +2%
SIC
716
Sigma Investment Counselors
Michigan
$405K +$33K +109 +10%
CCM
717
Coldstream Capital Management
Washington
$405K +$86.3K +285 +32%
HAG
718
HighPoint Advisor Group
Illinois
$403K +$8.48K +28 +2%
KA
719
Kercheville Advisors
Texas
$402K -$19.7K -65 -5%
SC
720
Savant Capital
Illinois
$401K -$4.24K -14 -1%
WWM
721
Western Wealth Management
Colorado
$397K +$31.5K +104 +10%
TFS
722
Thoroughbred Financial Services
Tennessee
$393K +$344K +1,136 New
PHS
723
Pekin Hardy Strauss
Illinois
$392K – – –
BB
724
Bell Bank
North Dakota
$390K – – –
DWM
725
Defined Wealth Management
Oregon
$390K – – –
27 28
29
30 31

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.