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Prothena Corp
PRTA

127 hedge funds and large institutions have $542M invested in Prothena Corp in 2014 Q4 according to their latest regulatory filings, with 24 funds opening new positions, 38 increasing their positions, 32 reducing their positions, and 22 closing their positions.

New
Increased
Maintained
Reduced
Closed

19% more repeat investments, than reductions

Existing positions increased: 38 | Existing positions reduced: 32

7% more capital invested

Capital invested by funds: $508M → $542M (+$34.7M)

9% more first-time investments, than exits

New positions opened: 24 | Existing positions closed: 22

0% more funds holding

Funds holding: 127 → 127 (0)

28% less call options, than puts

Call options by funds: $3.1M | Put options by funds: $4.28M

Holders
127
Holders Change
–
Holders Change %
0%
% of All Funds
3.39%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
% of All Funds
0.03%
New
24
Increased
38
Reduced
32
Closed
22
Calls
$3.1M
Puts
$4.28M
Net Calls
-$1.18M
Net Calls Change
-$4.07M

Top Buyers

Rank Fund Capital Flow
1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$10.2M
2
Millennium Management
Millennium Management
New York
+$4.22M
3
NI
Numeric Investors
Massachusetts
+$3.44M
4
State Street
State Street
Massachusetts
+$2.8M
5
BIT
BlackRock Institutional Trust
California
+$2.73M

Top Sellers

Rank Fund Capital Flow
1
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$6.65M
2
TCIM
TIAA CREF Investment Management
New York
-$6.57M
3
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
-$3.73M
4
OM
Opaleye Management
Massachusetts
-$3.48M
5
PC
PointState Capital
New York
-$3.13M
Name Holding Trade Value Shares
Change 		Change in
Stake
PSUF
101
People's United Financial
Connecticut
$3K – – –
AIM
102
Advantage Investment Management
Iowa
$3K +$3.13K +150 New
NPC
103
National Planning Corporation
California
$2.68K +$2.69K +129 New
LS
104
Lupo Securities
Illinois
$2.28K +$2.29K +110 New
HR
105
Howe & Rusling
New York
$2K – – –
HNB
106
Huntington National Bank
Ohio
$2K +$1.52K +73 New
LTFS
107
Ladenburg Thalmann Financial Services
Florida
$2K +$1.79K +86 +8,600%
JIC
108
Joel Isaacson & Co
New York
$1K – – –
PSI
109
Pinnacle Summer Investments
Virginia
$1K – – –
WT
110
Whittier Trust
California
$1K – – –
RC
111
RegentAtlantic Capital
New Jersey
$664 +$668 +32 New
Manulife (Manufacturers Life Insurance)
112
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$343 -$2.07K -99 -0.6%
Adage Capital Partners
113
Adage Capital Partners
Massachusetts
– -$6.65M -300,000 Closed
Arrowstreet Capital
114
Arrowstreet Capital
Massachusetts
– -$3.73M -168,562 Closed
OM
115
Opaleye Management
Massachusetts
– -$3.48M -157,000 Closed
Balyasny Asset Management
116
Balyasny Asset Management
Illinois
– -$3.09M -139,248 Closed
RG
117
Redmile Group
California
– -$2.79M -125,973 Closed
Alyeska Investment Group
118
Alyeska Investment Group
Illinois
– -$2.24M -101,131 Closed
CCA
119
Catalyst Capital Advisors
New York
– -$1.77M -80,000 Closed
OA
120
Omega Advisors
New York
– -$1.77M -80,000 Closed
Marshall Wace
121
Marshall Wace
United Kingdom
– -$964K -43,486 Closed
UOC
122
UBS O'Connor
Illinois
– -$776K -35,000 Closed
DM
123
Deerfield Management
New York
– -$609K -27,500 Closed
Citadel Advisors
124
Citadel Advisors
Florida
– -$585K -26,400 Closed
Renaissance Technologies
125
Renaissance Technologies
New York
– -$383K -17,300 Closed
2 3 4
5
6

PRTA Hedge Fund Activity: Q4 2014 in Review

127 of the 3,750 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q4 2014, worth a combined $542M — up 6.8% from $508M a quarter earlier.

Buyers outnumbered sellers: 24 funds opened new PRTA positions and 22 closed out — a net gain of 2 holders — while 38 added to existing stakes and 32 trimmed.

The largest buyer was T. Rowe Price Associates, adding an estimated $10.2M. The largest seller was Adage Capital Partners, exiting entirely with an estimated $6.65M sold.

  • 127 institutional investors held Prothena Corp (PRTA) as of Q4 2014, unchanged from Q3 2014.
  • Funds reported $542M of Prothena Corp stock for Q4 2014, up 6.8% quarter-over-quarter.
  • 24 funds opened new Prothena Corp positions in Q4 2014 and 22 closed out, a net change of +2 holders.
  • The largest Prothena Corp buyer in Q4 2014 was T. Rowe Price Associates, an estimated $10.2M added.
  • The largest Prothena Corp seller in Q4 2014 was Adage Capital Partners, an estimated $6.65M sold.

Based on aggregated 13F filings for Q4 2014.