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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
WW
826
Waterfront Wealth
Kansas
$268K -$2.12K -7 -0.9%
HI
827
Harbour Investments
Wisconsin
$267K +$8.18K +27 +4%
IFG
828
Independent Financial Group
California
$267K +$234K +771 New
CWA
829
Canvas Wealth Advisors
Kansas
$266K +$233K +769 New
CCM
830
Compton Capital Management
Rhode Island
$265K – – –
PWLP
831
Prio Wealth Limited Partnership
Massachusetts
$265K +$231K +764 New
SRC
832
Sage Rhino Capital
California
$264K +$3.63K +12 +2%
TFCP
833
Twin Focus Capital Partners
Massachusetts
$264K +$5.15K +17 +2%
KMWM
834
Keudell/Morrison Wealth Management
Oregon
$261K +$228K +753 New
BAM
835
Barrett Asset Management
New York
$260K -$29.7K -98 -12%
CG
836
Colony Group
Massachusetts
$260K -$25.8K -85 -10%
LBC
837
Lowe Brockenbrough & Co
Virginia
$260K – – –
ML
838
McAdam LLC
Pennsylvania
$258K -$107K -353 -31%
WPW
839
Waldron Private Wealth
Pennsylvania
$257K -$303 -1 -0.1%
ABTD
840
Arvest Bank Trust Division
Oklahoma
$257K +$225K +743 New
ABC
841
Associated Banc-Corp
Wisconsin
$256K -$117K -387 -34%
AIP
842
Ahrens Investment Partners
Louisiana
$256K – – –
ETM
843
Euclidean Technologies Management
Washington
$256K +$224K +739 New
FCI
844
Financial Counselors Inc
Kansas
$255K -$14.5K -48 -6%
DS
845
DRW Securities
Illinois
$253K -$12.4K -41 -5%
MW
846
Marcum Wealth
Ohio
$251K -$5.45K -18 -2%
PCA
847
Personal Capital Advisors
California
$251K -$4.85K -16 -2%
IAN
848
Integrated Advisors Network
Texas
$250K +$218K +721 New
CCM
849
Cohen Capital Management
California
$249K – – –
ARC
850
Advisor Resource Council
Texas
$247K +$216K +712 New
32 33
34
35 36

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.