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Prothena Corp

139 hedge funds and large institutions have $480M invested in Prothena Corp in 2019 Q1 according to their latest regulatory filings, with 29 funds opening new positions, 39 increasing their positions, 30 reducing their positions, and 10 closing their positions.

New
Increased
Maintained
Reduced
Closed

190% more first-time investments, than exits

New positions opened: 29 | Existing positions closed: 10

30% more repeat investments, than reductions

Existing positions increased: 39 | Existing positions reduced: 30

16% more capital invested

Capital invested by funds: $414M → $480M (+$66M)

16% more funds holding

Funds holding: 120139 (+19)

0% more funds holding in top 10

Funds holding in top 10: 22 (0)

1.56% less ownership

Funds ownership: 100.83%99.27% (-1.6%)

86% less call options, than puts

Call options by funds: $487K | Put options by funds: $3.38M

Holders
139
Holders Change
+19
Holders Change %
+15.83%
% of All Funds
3.01%
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.04%
New
29
Increased
39
Reduced
30
Closed
10
Calls
$487K
Puts
$3.38M
Net Calls
-$2.89M
Net Calls Change
+$5.08M
Name Holding Trade Value Shares
Change
Change in
Stake
HI
76
HBK Investments
Texas
$182K +$187K +15,000 New
CSS
77
Cubist Systematic Strategies
Connecticut
$171K +$36.1K +2,890 +26%
ECM
78
Element Capital Management
New York
$168K +$173K +13,881 New
CANY
79
Caxton Associates (New York)
New York
$165K +$170K +13,610 New
MLICM
80
Metropolitan Life Insurance Company (MetLife)
New York
$158K
Renaissance Technologies
81
Renaissance Technologies
New York
$155K +$160K +12,800 New
BNP Paribas Financial Markets
82
BNP Paribas Financial Markets
France
$134K +$104K +8,360 +310%
AG
83
Aperio Group
California
$134K +$138K +11,056 New
EMG
84
Ellington Management Group
Connecticut
$129K +$132K +10,600 New
FWM
85
Focused Wealth Management
New York
$126K
SG Americas Securities
86
SG Americas Securities
New York
$114K +$117K +9,364 New
Legal & General Group
87
Legal & General Group
United Kingdom
$95K -$84.5K -6,765 -46%
PI
88
PEAK6 Investments
Illinois
$91K -$462K -36,968 -83%
Walleye Capital
89
Walleye Capital
New York
$89K +$91.4K +7,319 New
Public Employees Retirement Association of Colorado
90
Public Employees Retirement Association of Colorado
Colorado
$84K
Group One Trading
91
Group One Trading
Illinois
$69K -$408K -32,657 -85%
TRCT
92
Tower Research Capital (TRC)
New York
$56K +$57.7K +4,621 +92,420%
UBS Group
93
UBS Group
Switzerland
$51K -$1.57M -125,477 -97%
QT
94
Quantamental Technologies
New York
$50K +$30.3K +2,429 +143%
AIP
95
Ameritas Investment Partners
Nebraska
$39K
Royal Bank of Canada
96
Royal Bank of Canada
Ontario, Canada
$27K
Zurich Cantonal Bank
97
Zurich Cantonal Bank
Switzerland
$25K -$13.9K -1,113 -35%
BDWM
98
Brewin Dolphin Wealth Management
Ireland
$24.4K
FPS
99
Fieldpoint Private Securities
Connecticut
$24K
RE
100
RBC Europe
United Kingdom
$15.4K

PRTA Hedge Fund Activity: Q1 2019 in Review

139 of the 4,620 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q1 2019, worth a combined $480M — up 16% from $414M a quarter earlier.

Buyers outnumbered sellers: 29 funds opened new PRTA positions and 10 closed out — a net gain of 19 holders — while 39 added to existing stakes and 30 trimmed.

The largest buyer was OrbiMed, opening a new position worth an estimated $30.4M. The largest seller was Scopia Capital Management, cutting an estimated $50.2M.

  • 139 institutional investors held Prothena Corp (PRTA) as of Q1 2019, up from 120 in Q4 2018.
  • Funds reported $480M of Prothena Corp stock for Q1 2019, up 16% quarter-over-quarter.
  • 29 funds opened new Prothena Corp positions in Q1 2019 and 10 closed out, a net change of +19 holders.
  • The largest Prothena Corp buyer in Q1 2019 was OrbiMed, an estimated $30.4M added.
  • The largest Prothena Corp seller in Q1 2019 was Scopia Capital Management, an estimated $50.2M sold.

Based on aggregated 13F filings for Q1 2019.