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Prothena Corp
PRTA

138 hedge funds and large institutions have $409M invested in Prothena Corp in 2019 Q2 according to their latest regulatory filings, with 25 funds opening new positions, 44 increasing their positions, 28 reducing their positions, and 24 closing their positions.

New
Increased
Maintained
Reduced
Closed

167% more call options, than puts

Call options by funds: $823K | Put options by funds: $308K

57% more repeat investments, than reductions

Existing positions increased: 44 | Existing positions reduced: 28

4% more first-time investments, than exits

New positions opened: 25 | Existing positions closed: 24

0% more funds holding in top 10

Funds holding in top 10: 2 → 2 (0)

1% less funds holding

Funds holding: 139 → 138 (-1)

2.18% less ownership

Funds ownership: 99.27% → 97.09% (-2.2%)

15% less capital invested

Capital invested by funds: $480M → $409M (-$71M)

Holders
138
Holders Change
-1
Holders Change %
-0.72%
% of All Funds
3%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.04%
New
25
Increased
44
Reduced
28
Closed
24
Calls
$823K
Puts
$308K
Net Calls
+$515K
Net Calls Change
+$3.4M

Top Buyers

1
GPP
Great Point Partners
Connecticut
+$17.2M
2
O
OrbiMed
New York
+$6.47M
3
Millennium Management
Millennium Management
New York
+$5.17M
4
N
Nuveen
North Carolina
+$2.6M
5
Marshall Wace
Marshall Wace
United Kingdom
+$1.78M

Top Sellers

1
WIM
Woodford Investment Management
United Kingdom
-$32.4M
2
SCM
Scopia Capital Management
New York
-$7.28M
3
HT
HAP Trading
New York
-$5.56M
4
MSE
MUFG Securities EMEA
United Kingdom
-$2.25M
5
State Street
State Street
Massachusetts
-$1.44M
Name Holding Trade Value Shares
Change 		Change in
Stake
HI
126
HBK Investments
Texas
– -$182K -15,000 Closed
ECM
127
Element Capital Management
New York
– -$168K -13,881 Closed
CANY
128
Caxton Associates (New York)
New York
– -$165K -13,610 Closed
Renaissance Technologies
129
Renaissance Technologies
New York
– -$155K -12,800 Closed
EMG
130
Ellington Management Group
Connecticut
– -$129K -10,600 Closed
SG Americas Securities
131
SG Americas Securities
New York
– -$114K -9,364 Closed
PI
132
PEAK6 Investments
Illinois
– -$91K -7,518 Closed
Walleye Capital
133
Walleye Capital
New York
– -$89K -7,319 Closed
TRCT
134
Tower Research Capital (TRC)
New York
– -$56K -4,626 Closed
OWD
135
Osborn Williams & Donohoe
Ohio
– -$3K -243 Closed
QCG
136
Quadrant Capital Group
Ohio
– -$1K -105 Closed
FHB
137
First Hawaiian Bank
Hawaii
– -$1K -45 Closed
TF
138
TimeScale Financial
Massachusetts
– +$21 +2 New
TPWA
139
TRUE Private Wealth Advisors
Oregon
– +$41 +4 New
NFG
140
Next Financial Group
Texas
– +$92 +9 New
AG
141
Advisor Group
Arizona
– +$164 +16 +800%
GSWM
142
Golden State Wealth Management
California
– +$246 +24 New
CAM
143
ClariVest Asset Management
California
– +$431 +42 New
2 3 4 5
6

PRTA Hedge Fund Activity: Q2 2019 in Review

138 of the 4,604 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q2 2019, worth a combined $409M — down 15% from $480M a quarter earlier.

Buyers outnumbered sellers: 25 funds opened new PRTA positions and 24 closed out — a net gain of 1 holder — while 44 added to existing stakes and 28 trimmed.

The largest buyer was Great Point Partners, opening a new position worth an estimated $17.2M. The largest seller was Woodford Investment Management, cutting an estimated $32.4M.

  • 138 institutional investors held Prothena Corp (PRTA) as of Q2 2019, down from 139 in Q1 2019.
  • Funds reported $409M of Prothena Corp stock for Q2 2019, down 15% quarter-over-quarter.
  • 25 funds opened new Prothena Corp positions in Q2 2019 and 24 closed out, a net change of +1 holder.
  • The largest Prothena Corp buyer in Q2 2019 was Great Point Partners, an estimated $17.2M added.
  • The largest Prothena Corp seller in Q2 2019 was Woodford Investment Management, an estimated $32.4M sold.

Based on aggregated 13F filings for Q2 2019.