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1,122 hedge funds and large institutions have $60B invested in Biogen in 2017 Q4 according to their latest regulatory filings, with 167 funds opening new positions, 399 increasing their positions, 384 reducing their positions, and 48 closing their positions.

New
Increased
Maintained
Reduced
Closed

248% more first-time investments, than exits

New positions opened: 167 | Existing positions closed: 48

11% more funds holding

Funds holding: 1,0141,122 (+108)

4% more repeat investments, than reductions

Existing positions increased: 399 | Existing positions reduced: 384

2% more capital invested

Capital invested by funds: $59B → $60B (+$967M)

0.05% less ownership

Funds ownership: 89.15%89.1% (-0.05%)

26% less funds holding in top 10

Funds holding in top 10: 3828 (-10)

32% less call options, than puts

Call options by funds: $989M | Put options by funds: $1.44B

Holders
1,122
Holders Change
+108
Holders Change %
+10.65%
% of All Funds
25.45%
Holding in Top 10
28
Holding in Top 10 Change
-10
Holding in Top 10 Change %
-26.32%
% of All Funds
0.64%
New
167
Increased
399
Reduced
384
Closed
48
Calls
$989M
Puts
$1.44B
Net Calls
-$456M
Net Calls Change
-$187M
Name Holding Trade Value Shares
Change
Change in
Stake
Balyasny Asset Management
51
Balyasny Asset Management
Illinois
$174M +$124M +385,130 +237%
Prudential Financial
52
Prudential Financial
New Jersey
$172M -$12.2M -38,027 -7%
FCM
53
Farallon Capital Management
California
$172M +$20.9M +65,000 +14%
California Public Employees Retirement System
54
California Public Employees Retirement System
California
$170M +$9.21M +28,718 +6%
VOYA Investment Management
55
VOYA Investment Management
Georgia
$160M +$8.77M +27,339 +6%
LSV Asset Management
56
LSV Asset Management
Illinois
$157M +$2.47M +7,705 +2%
D.E. Shaw & Co
57
D.E. Shaw & Co
New York
$152M -$42.9M -133,795 -22%
CS
58
Credit Suisse
Switzerland
$144M -$9.5M -29,625 -6%
Swedbank
59
Swedbank
Sweden
$144M -$2.31M -7,191 -2%
TCM
60
Tekla Capital Management
Massachusetts
$142M -$14.1M -43,997 -9%
UBS Group
61
UBS Group
Switzerland
$141M +$77.7M +242,120 +121%
Principal Financial Group
62
Principal Financial Group
Iowa
$139M -$5.51M -17,175 -4%
Mitsubishi UFJ Trust & Banking
63
Mitsubishi UFJ Trust & Banking
Japan
$138M -$3.72M -11,609 -3%
TA
64
Teachers Advisors
New York
$138M +$26.6M +82,966 +24%
APG Asset Management
65
APG Asset Management
Netherlands
$138M +$14M +43,603 +9%
EVM
66
Eaton Vance Management
Massachusetts
$137M -$6.34M -19,771 -4%
PNC Financial Services Group
67
PNC Financial Services Group
Pennsylvania
$133M -$4.65M -14,499 -3%
SCM
68
Sarissa Capital Management
Connecticut
$132M +$9.62M +30,000 +8%
MNG
69
Manning & Napier Group
New York
$130M +$130M +406,653 New
FWIA
70
Fort Washington Investment Advisors
Ohio
$123M +$22.8M +71,037 +23%
Axa
71
Axa
France
$121M -$12.8M -40,016 -9%
New York State Teachers Retirement System (NYSTRS)
72
New York State Teachers Retirement System (NYSTRS)
New York
$119M -$930K -2,900 -0.8%
WIM
73
Woodford Investment Management
United Kingdom
$118M +$3.36M +10,480 +3%
Nordea Investment Management
74
Nordea Investment Management
Sweden
$115M +$1.83M +5,710 +2%
Asset Management One
75
Asset Management One
Japan
$114M -$1.82M -5,673 -2%

BIIB Hedge Fund Activity: Q4 2017 in Review

1,122 of the 4,409 institutional investors tracked by Wall St. Rank reported a position in Biogen (BIIB) for Q4 2017, worth a combined $60B — up 1.6% from $59B a quarter earlier.

Buyers outnumbered sellers: 167 funds opened new BIIB positions and 48 closed out — a net gain of 119 holders — while 399 added to existing stakes and 384 trimmed.

The largest buyer was Fidelity Investments, adding an estimated $623M. The largest seller was T. Rowe Price Associates, cutting an estimated $689M.

  • 1,122 institutional investors held Biogen (BIIB) as of Q4 2017, up from 1,014 in Q3 2017.
  • Funds reported $60B of Biogen stock for Q4 2017, up 1.6% quarter-over-quarter.
  • 167 funds opened new Biogen positions in Q4 2017 and 48 closed out, a net change of +119 holders.
  • The largest Biogen buyer in Q4 2017 was Fidelity Investments, an estimated $623M added.
  • The largest Biogen seller in Q4 2017 was T. Rowe Price Associates, an estimated $689M sold.

Based on aggregated 13F filings for Q4 2017.