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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
GI
126
Gradient Investments
Minnesota
$1K
WT
127
Whittier Trust
California
$1K
Northwestern Mutual Wealth Management
128
Northwestern Mutual Wealth Management
Wisconsin
$1K +$509 +13 New
TSW
129
Thompson Siegel & Walmsley
Virginia
$1K +$822 +21 New
N
130
Nuveen
North Carolina
$534 +$508K +12,981 New
Citadel Advisors
131
Citadel Advisors
Florida
-$18.4M -469,605 Closed
Lord, Abbett & Co
132
Lord, Abbett & Co
New Jersey
-$10.4M -152,484 Closed
BNP Paribas Asset Management
133
BNP Paribas Asset Management
France
-$8.22M -120,667 Closed
Renaissance Technologies
134
Renaissance Technologies
New York
-$6.17M -90,600 Closed
GTC
135
Ghost Tree Capital
New York
-$6.13M -90,000 Closed
EI
136
EAM Investors
California
-$4.34M -63,746 Closed
CCP
137
Clough Capital Partners
Massachusetts
-$2.62M -38,400 Closed
Ameriprise
138
Ameriprise
Minnesota
-$2.23M -32,695 Closed
Two Sigma Investments
139
Two Sigma Investments
New York
-$1.75M -25,726 Closed
HI
140
HBK Investments
Texas
-$1.13M -16,600 Closed
TCM
141
Traynor Capital Management
Pennsylvania
-$1.1M -16,123 Closed
WSA
142
Wall Street Associates
California
-$1.05M -15,411 Closed
Simplex Trading
143
Simplex Trading
Illinois
-$593K -15,147 Closed
ACM
144
Atika Capital Management
New York
-$1.02M -15,000 Closed
Neuberger Berman Group
145
Neuberger Berman Group
New York
-$987K -14,490 Closed
Two Sigma Advisers
146
Two Sigma Advisers
New York
-$688K -10,100 Closed
PP
147
Paloma Partners
Connecticut
-$424K -6,233 Closed
CSS
148
Cubist Systematic Strategies
Connecticut
-$339K -4,978 Closed
Squarepoint
149
Squarepoint
New York
-$334K -4,900 Closed
QSS
150
Quantitative Systematic Strategies
Florida
-$312K -4,484 Closed

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.