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Prothena Corp

138 hedge funds and large institutions have $1.62B invested in Prothena Corp in 2015 Q2 according to their latest regulatory filings, with 25 funds opening new positions, 48 increasing their positions, 35 reducing their positions, and 10 closing their positions.

New
Increased
Maintained
Reduced
Closed

150% more first-time investments, than exits

New positions opened: 25 | Existing positions closed: 10

59% more capital invested

Capital invested by funds: $1.02B → $1.62B (+$599M)

50% more funds holding in top 10

Funds holding in top 10: 23 (+1)

37% more repeat investments, than reductions

Existing positions increased: 48 | Existing positions reduced: 35

15% more call options, than puts

Call options by funds: $12.2M | Put options by funds: $10.6M

11% more funds holding

Funds holding: 124138 (+14)

Holders
138
Holders Change
+14
Holders Change %
+11.29%
% of All Funds
3.72%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.08%
New
25
Increased
48
Reduced
35
Closed
10
Calls
$12.2M
Puts
$10.6M
Net Calls
+$1.56M
Net Calls Change
+$6.55M
Name Holding Trade Value Shares
Change
Change in
Stake
Group One Trading
51
Group One Trading
Illinois
$1.8M +$668K +16,932 +98%
GIM
52
Granahan Investment Management
Massachusetts
$1.78M
New York State Common Retirement Fund
53
New York State Common Retirement Fund
New York
$1.7M +$1.28M +32,360 New
UBS Group
54
UBS Group
Switzerland
$1.61M +$808K +20,481 +203%
ProShare Advisors
55
ProShare Advisors
Maryland
$1.52M +$68.4K +1,733 +6%
RhumbLine Advisers
56
RhumbLine Advisers
Massachusetts
$1.46M -$153K -3,880 -12%
SG Americas Securities
57
SG Americas Securities
New York
$1.39M +$252K +6,387 +32%
Connor, Clark & Lunn Investment Management (CC&L)
58
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$1.34M -$497K -12,600 -33%
MIG
59
Mariner Investment Group
New York
$1.24M -$789K -20,000 -46%
California Public Employees Retirement System
60
California Public Employees Retirement System
California
$1.19M
CI
61
Cowen Inc
New York
$1.19M +$890K +22,556 New
Neuberger Berman Group
62
Neuberger Berman Group
New York
$1.13M +$296K +7,498 +53%
ICAP
63
Independence Capital Asset Partners
Colorado
$1.08M +$810K +20,530 New
NFA
64
Nationwide Fund Advisors
Ohio
$1.07M +$28.8K +729 +4%
HI
65
HBK Investments
Texas
$1.01M +$758K +19,200 New
AIG
66
American International Group
New York
$966K +$62.1K +1,574 +9%
D.E. Shaw & Co
67
D.E. Shaw & Co
New York
$862K -$1.13M -28,731 -64%
Bank of America
68
Bank of America
North Carolina
$824K +$576K +14,601 +1,408%
State Board of Administration of Florida Retirement System
69
State Board of Administration of Florida Retirement System
Florida
$813K +$31.4K +796 +5%
VOYA Investment Management
70
VOYA Investment Management
Georgia
$800K +$78K +1,976 +15%
DekaBank Deutsche Girozentrale
71
DekaBank Deutsche Girozentrale
Germany
$785K +$82.9K +2,100 +16%
Susquehanna International Group
72
Susquehanna International Group
Pennsylvania
$779K +$289K +7,330 +98%
Goldman Sachs
73
Goldman Sachs
New York
$743K -$1.21M -30,569 -68%
CCA
74
Checchi Capital Advisers
California
$739K +$554K +14,028 New
BAMS
75
Bellevue Asset Management (Switzerland)
Switzerland
$685K +$513K +13,000 New

PRTA Hedge Fund Activity: Q2 2015 in Review

138 of the 3,711 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q2 2015, worth a combined $1.62B — up 59% from $1.02B a quarter earlier.

Buyers outnumbered sellers: 25 funds opened new PRTA positions and 10 closed out — a net gain of 15 holders — while 48 added to existing stakes and 35 trimmed.

The largest buyer was Woodford Investment Management, adding an estimated $71.8M. The largest seller was Westfield Capital Management, cutting an estimated $13.5M.

  • 138 institutional investors held Prothena Corp (PRTA) as of Q2 2015, up from 124 in Q1 2015.
  • Funds reported $1.62B of Prothena Corp stock for Q2 2015, up 59% quarter-over-quarter.
  • 25 funds opened new Prothena Corp positions in Q2 2015 and 10 closed out, a net change of +15 holders.
  • The largest Prothena Corp buyer in Q2 2015 was Woodford Investment Management, an estimated $71.8M added.
  • The largest Prothena Corp seller in Q2 2015 was Westfield Capital Management, an estimated $13.5M sold.

Based on aggregated 13F filings for Q2 2015.