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Prothena Corp

144 hedge funds and large institutions have $1.48B invested in Prothena Corp in 2016 Q1 according to their latest regulatory filings, with 20 funds opening new positions, 63 increasing their positions, 34 reducing their positions, and 35 closing their positions.

New
Increased
Maintained
Reduced
Closed

85% more repeat investments, than reductions

Existing positions increased: 63 | Existing positions reduced: 34

11% less funds holding

Funds holding: 161144 (-17)

15% less call options, than puts

Call options by funds: $10.5M | Put options by funds: $12.3M

31% less capital invested

Capital invested by funds: $2.13B → $1.48B (-$651M)

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

43% less first-time investments, than exits

New positions opened: 20 | Existing positions closed: 35

Holders
144
Holders Change
-17
Holders Change %
-10.56%
% of All Funds
3.84%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.05%
New
20
Increased
63
Reduced
34
Closed
35
Calls
$10.5M
Puts
$12.3M
Net Calls
-$1.82M
Net Calls Change
+$400K
Name Holding Trade Value Shares
Change
Change in
Stake
OM
76
Opaleye Management
Massachusetts
$576K +$548K +14,000 New
CA
77
Commerzbank Aktiengesellschaft
Germany
$468K +$445K +11,372 New
Public Employees Retirement Association of Colorado
78
Public Employees Retirement Association of Colorado
Colorado
$390K -$68.8K -1,758 -16%
SG Americas Securities
79
SG Americas Securities
New York
$334K +$111K +2,843 +54%
UOC
80
UBS O'Connor
Illinois
$320K +$304K +7,763 New
SGAM
81
Smith Group Asset Management
Texas
$303K -$3.13K -80 -1%
TI
82
Trexquant Investment
Connecticut
$300K +$285K +7,295 New
CPIG
83
Chicago Partners Investment Group
Illinois
$251K -$14.8K -379 -6%
GCP
84
GSA Capital Partners
United Kingdom
$247K -$318K -8,120 -58%
OAC
85
OMERS Administration Corp
Ontario, Canada
$247K +$39.1K +1,000 +20%
Principal Financial Group
86
Principal Financial Group
Iowa
$245K +$21.3K +543 +10%
EMG
87
Ellington Management Group
Connecticut
$239K +$227K +5,800 New
WC
88
Whitnell & Co
Illinois
$226K
MC
89
Moors & Cabot
Massachusetts
$224K +$3.05K +78 +1%
CG
90
Cutler Group
California
$198K -$548K -13,996 -74%
RFC
91
Russell Frank Company
Washington
$197K -$536K -13,686 -74%
FWM
92
Focused Wealth Management
New York
$185K +$137K +3,500 +350%
VEA
93
Virtus ETF Advisers
New York
$150K +$143K +3,650 New
Teacher Retirement System of Texas
94
Teacher Retirement System of Texas
Texas
$145K +$23.7K +606 +21%
Group One Trading
95
Group One Trading
Illinois
$139K -$953K -24,350 -88%
Barclays
96
Barclays
United Kingdom
$135K +$53.4K +1,365 +71%
BNP Paribas Financial Markets
97
BNP Paribas Financial Markets
France
$111K -$357K -9,125 -77%
BlackRock
98
BlackRock
New York
$110K +$69K +1,764 +198%
Bank of America
99
Bank of America
North Carolina
$89K -$242K -6,191 -74%
CCMH
100
Cornerstone Capital Management Holdings
New York
$77K -$50.9K -1,300 -41%

PRTA Hedge Fund Activity: Q1 2016 in Review

144 of the 3,753 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q1 2016, worth a combined $1.48B — down 31% from $2.13B a quarter earlier.

Sellers outnumbered buyers: 35 funds closed out of PRTA and 20 opened new positions — a net loss of 15 holders — while 34 trimmed existing stakes and 63 added.

The largest buyer was Woodford Investment Management, adding an estimated $114M. The largest seller was Citadel Advisors, exiting entirely with an estimated $18.4M sold.

  • 144 institutional investors held Prothena Corp (PRTA) as of Q1 2016, down from 161 in Q4 2015.
  • Funds reported $1.48B of Prothena Corp stock for Q1 2016, down 31% quarter-over-quarter.
  • 20 funds opened new Prothena Corp positions in Q1 2016 and 35 closed out, a net change of -15 holders.
  • The largest Prothena Corp buyer in Q1 2016 was Woodford Investment Management, an estimated $114M added.
  • The largest Prothena Corp seller in Q1 2016 was Citadel Advisors, an estimated $18.4M sold.

Based on aggregated 13F filings for Q1 2016.