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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
FDCDDQ
326
Federation des caisses Desjardins du Quebec
Quebec, Canada
$4.81M -$1.03M -3,404 -20%
YIH
327
Y-Intercept (HK)
Hong Kong
$4.79M +$3.38M +11,168 +419%
HF
328
HRT Financial
New York
$4.51M +$3.95M +13,039 New
Creative Planning
329
Creative Planning
Kansas
$4.5M -$3.81M -12,580 -49%
SAM
330
Securian Asset Management
Minnesota
$4.5M -$83K -274 -2%
CCP
331
Cardan Capital Partners
Colorado
$4.47M -$77.9K -257 -2%
Schroder Investment Management Group
332
Schroder Investment Management Group
United Kingdom
$4.46M -$1.2M -3,946 -23%
6M
333
6 Meridian
Kansas
$4.45M -$627K -2,070 -14%
SG Americas Securities
334
SG Americas Securities
New York
$4.45M -$5.2M -17,157 -57%
Twin Tree Management
335
Twin Tree Management
Texas
$4.42M -$26.2M -86,648 -87%
MCM
336
Mengis Capital Management
Oregon
$4.38M – – –
FNBOO
337
First National Bank of Omaha
Nebraska
$4.35M – – –
EIM
338
Essex Investment Management
Massachusetts
$4.34M -$88.5K -292 -2%
NLGIA
339
Nippon Life Global Investors Americas
New York
$4.3M +$3.76M +12,410 New
Brown Advisory
340
Brown Advisory
Maryland
$4.28M +$1.2M +3,953 +47%
Daiwa Securities Group
341
Daiwa Securities Group
Japan
$4.24M -$1.41M -4,667 -28%
BC
342
Birchview Capital
Vermont
$4.19M – – –
KeyBank National Association
343
KeyBank National Association
Ohio
$4.17M +$370K +1,223 +11%
AAIM
344
American Assets Investment Management
California
$4.16M – – –
PDN
345
Pensionfund DSM Netherlands
Netherlands
$4.16M – – –
TRSOTSOK
346
Teachers Retirement System of the State of Kentucky
Kentucky
$4.07M -$21.1M -69,490 -86%
GFA
347
Gifford Fong Associates
California
$3.98M – – –
BCM
348
Bayesian Capital Management
New York
$3.98M +$3.48M +11,500 New
Mariner
349
Mariner
Kansas
$3.97M -$137K -452 -4%
BBVA
350
Banco Bilbao Vizcaya Argentaria
Spain
$3.95M +$93.3K +308 +3%
12 13
14
15 16

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.