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Prothena Corp

120 hedge funds and large institutions have $414M invested in Prothena Corp in 2018 Q4 according to their latest regulatory filings, with 19 funds opening new positions, 35 increasing their positions, 32 reducing their positions, and 29 closing their positions.

New
Increased
Maintained
Reduced
Closed

100% more funds holding in top 10

Funds holding in top 10: 12 (+1)

9% more repeat investments, than reductions

Existing positions increased: 35 | Existing positions reduced: 32

1.27% less ownership

Funds ownership: 102.1%100.83% (-1.3%)

8% less funds holding

Funds holding: 130120 (-10)

22% less capital invested

Capital invested by funds: $533M → $414M (-$119M)

34% less first-time investments, than exits

New positions opened: 19 | Existing positions closed: 29

67% less call options, than puts

Call options by funds: $3.91M | Put options by funds: $11.9M

Holders
120
Holders Change
-10
Holders Change %
-7.69%
% of All Funds
2.67%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.04%
New
19
Increased
35
Reduced
32
Closed
29
Calls
$3.91M
Puts
$11.9M
Net Calls
-$7.97M
Net Calls Change
+$11.1M
Name Holding Trade Value Shares
Change
Change in
Stake
Man Group
26
Man Group
United Kingdom
$1.3M -$364K -30,632 -20%
TCIM
27
TIAA CREF Investment Management
New York
$1.19M +$178K +14,996 +15%
TA
28
Teachers Advisors
New York
$1.04M +$9.5K +799 +0.8%
Morgan Stanley
29
Morgan Stanley
New York
$1.03M +$325K +27,366 +38%
Susquehanna International Group
30
Susquehanna International Group
Pennsylvania
$887K +$1.02M +86,145 New
Walleye Trading
31
Walleye Trading
New York
$853K +$340K +28,564 +53%
Millennium Management
32
Millennium Management
New York
$731K -$7.93M -667,063 -90%
Swiss National Bank
33
Swiss National Bank
Switzerland
$725K +$47.5K +4,000 +6%
California State Teachers Retirement System (CalSTRS)
34
California State Teachers Retirement System (CalSTRS)
California
$648K +$17.2K +1,443 +2%
D.E. Shaw & Co
35
D.E. Shaw & Co
New York
$603K +$199K +16,779 +40%
Russell Investments Group
36
Russell Investments Group
United Kingdom
$593K +$69.4K +5,839 +11%
RhumbLine Advisers
37
RhumbLine Advisers
Massachusetts
$591K +$209K +17,569 +44%
AllianceBernstein
38
AllianceBernstein
Tennessee
$578K
JP Morgan Chase
39
JP Morgan Chase
New York
$514K -$615K -51,738 -51%
Jacobs Levy Equity Management
40
Jacobs Levy Equity Management
New Jersey
$496K +$573K +48,175 New
TCM
41
Tang Capital Management
California
$490K +$566K +47,610 New
California Public Employees Retirement System
42
California Public Employees Retirement System
California
$477K -$88.3K -7,426 -14%
PI
43
PEAK6 Investments
Illinois
$458K +$494K +41,582 +1,432%
New York State Common Retirement Fund
44
New York State Common Retirement Fund
New York
$428K
State of Wisconsin Investment Board
45
State of Wisconsin Investment Board
Wisconsin
$427K +$7.13K +600 +1%
OAM
46
Oxford Asset Management
United Kingdom
$401K +$463K +38,913 New
Group One Trading
47
Group One Trading
Illinois
$395K +$22K +1,853 +5%
Invesco
48
Invesco
Georgia
$395K +$59.9K +5,039 +15%
CS
49
Credit Suisse
Switzerland
$362K +$57.7K +4,852 +16%
ARTA
50
A.R.T. Advisors
New York
$344K -$448K -37,691 -53%

PRTA Hedge Fund Activity: Q4 2018 in Review

120 of the 4,488 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q4 2018, worth a combined $414M — down 22% from $533M a quarter earlier.

Sellers outnumbered buyers: 29 funds closed out of PRTA and 19 opened new positions — a net loss of 10 holders — while 32 trimmed existing stakes and 35 added.

The largest buyer was EcoR1 Capital, opening a new position worth an estimated $9.96M. The largest seller was Wellington Management Group, cutting an estimated $14.5M.

  • 120 institutional investors held Prothena Corp (PRTA) as of Q4 2018, down from 130 in Q3 2018.
  • Funds reported $414M of Prothena Corp stock for Q4 2018, down 22% quarter-over-quarter.
  • 19 funds opened new Prothena Corp positions in Q4 2018 and 29 closed out, a net change of -10 holders.
  • The largest Prothena Corp buyer in Q4 2018 was EcoR1 Capital, an estimated $9.96M added.
  • The largest Prothena Corp seller in Q4 2018 was Wellington Management Group, an estimated $14.5M sold.

Based on aggregated 13F filings for Q4 2018.