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738 hedge funds and large institutions have $60.8B invested in Biogen in 2013 Q4 according to their latest regulatory filings, with 121 funds opening new positions, 247 increasing their positions, 264 reducing their positions, and 30 closing their positions.

New
Increased
Maintained
Reduced
Closed

303% more first-time investments, than exits

New positions opened: 121 | Existing positions closed: 30

54% more funds holding in top 10

Funds holding in top 10: 2437 (+13)

18% more call options, than puts

Call options by funds: $913M | Put options by funds: $771M

16% more capital invested

Capital invested by funds: $52.6B → $60.8B (+$8.27B)

13% more funds holding

Funds holding: 656738 (+82)

6% less repeat investments, than reductions

Existing positions increased: 247 | Existing positions reduced: 264

Holders
738
Holders Change
+82
Holders Change %
+12.5%
% of All Funds
21.42%
Holding in Top 10
37
Holding in Top 10 Change
+13
Holding in Top 10 Change %
+54.17%
% of All Funds
1.07%
New
121
Increased
247
Reduced
264
Closed
30
Calls
$913M
Puts
$771M
Net Calls
+$142M
Net Calls Change
+$212M
Name Holding Trade Value Shares
Change
Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$6.73B -$414M -1,598,992 -6%
Primecap Management
2
Primecap Management
California
$4.97B -$49.3M -190,570 -1%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$3.26B +$213M +823,942 +8%
Vanguard Group
4
Vanguard Group
Pennsylvania
$3.25B +$27.4M +105,771 +0.9%
State Street
5
State Street
Massachusetts
$2.84B -$27M -104,496 -1%
Capital Research Global Investors
6
Capital Research Global Investors
California
$2.56B +$81.5M +315,000 +4%
ClearBridge Investments
7
ClearBridge Investments
New York
$2.29B -$5.7M -22,029 -0.3%
JP Morgan Chase
8
JP Morgan Chase
New York
$1.92B -$493M -1,905,162 -22%
Jennison Associates
9
Jennison Associates
New York
$1.82B +$30.5M +117,882 +2%
BIT
10
BlackRock Institutional Trust
California
$1.7B -$28.2M -108,958 -2%
Sands Capital Management
11
Sands Capital Management
Virginia
$1.33B +$30.8M +118,919 +3%
Invesco
12
Invesco
Georgia
$1.03B -$19.3M -74,468 -2%
BFA
13
BlackRock Fund Advisors
California
$985M -$27.9M -107,721 -3%
Northern Trust
14
Northern Trust
Illinois
$895M -$3.42M -13,226 -0.4%
Wellington Management Group
15
Wellington Management Group
Massachusetts
$888M -$153M -593,207 -16%
Bank of New York Mellon
16
Bank of New York Mellon
New York
$832M -$19.4M -74,917 -2%
TCIM
17
TIAA CREF Investment Management
New York
$828M -$42.2M -163,286 -5%
Winslow Capital Management
18
Winslow Capital Management
Minnesota
$712M -$19.2M -74,286 -3%
MCM
19
Marsico Capital Management
Colorado
$705M -$92M -355,788 -12%
Ameriprise
20
Ameriprise
Minnesota
$686M +$74.7M +288,758 +13%
Wells Fargo
21
Wells Fargo
California
$597M +$40M +154,502 +8%
AllianceBernstein
22
AllianceBernstein
Tennessee
$584M -$74.2M -286,897 -12%
WRF
23
Waddell & Reed Financial
Kansas
$579M +$160M +616,724 +42%
BG
24
BlackRock Group
United Kingdom
$524M -$5.66M -21,899 -1%
Franklin Resources
25
Franklin Resources
California
$519M +$45.5M +175,987 +10%

BIIB Hedge Fund Activity: Q4 2013 in Review

738 of the 3,446 institutional investors tracked by Wall St. Rank reported a position in Biogen (BIIB) for Q4 2013, worth a combined $60.8B — up 16% from $52.6B a quarter earlier.

Buyers outnumbered sellers: 121 funds opened new BIIB positions and 30 closed out — a net gain of 91 holders — while 247 added to existing stakes and 264 trimmed.

The largest buyer was T. Rowe Price Associates, adding an estimated $213M. The largest seller was JP Morgan Chase, cutting an estimated $493M.

  • 738 institutional investors held Biogen (BIIB) as of Q4 2013, up from 656 in Q3 2013.
  • Funds reported $60.8B of Biogen stock for Q4 2013, up 16% quarter-over-quarter.
  • 121 funds opened new Biogen positions in Q4 2013 and 30 closed out, a net change of +91 holders.
  • The largest Biogen buyer in Q4 2013 was T. Rowe Price Associates, an estimated $213M added.
  • The largest Biogen seller in Q4 2013 was JP Morgan Chase, an estimated $493M sold.

Based on aggregated 13F filings for Q4 2013.