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Prothena Corp
PRTA

Overview Fund Activity

125 hedge funds and large institutions have $610M invested in Prothena Corp in 2018 Q2 according to their latest regulatory filings, with 22 funds opening new positions, 35 increasing their positions, 37 reducing their positions, and 39 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
125
Holders Change
-17
Holders Change %
-11.97%
% of All Funds
2.87%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
22
Increased
35
Reduced
37
Closed
39
Calls
$9.92M
Puts
$6.78M
Net Calls
+$3.14M
Net Calls Change
-$40.3M

Top Buyers

1
SCM
1
Scopia Capital Management
New York
$51.2M
2
State Street
2
State Street
Massachusetts
$49.9M
3
DM
3
Deerfield Management
New York
$9.16M
4
Citadel Advisors
4
Citadel Advisors
Florida
$8.48M
5
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$7.8M

Top Sellers

1
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$11.6M
2
AllianceBernstein
2
AllianceBernstein
Tennessee
$819K
3
BB
3
BB Biotech
Switzerland
$0
4
RSCM
4
Rock Springs Capital Management
Maryland
$0
5
Westfield Capital Management
5
Westfield Capital Management
Massachusetts
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
HT
26
HAP Trading
New York
$1.88M +$1.23M +84,102 +188%
Citigroup
27
Citigroup
New York
$1.66M +$995K +68,242 +149%
ERSOT
28
Employees Retirement System of Texas
Texas
$1.65M – – –
TCIM
29
TIAA CREF Investment Management
New York
$1.51M -$416K -28,521 -22%
ARTA
30
A.R.T. Advisors
New York
$1.45M +$847K +58,100 +140%
TA
31
Teachers Advisors
New York
$1.43M -$938K -64,344 -40%
Thrivent Financial for Lutherans
32
Thrivent Financial for Lutherans
Minnesota
$1.42M +$3.43K +235 +0.2%
Deutsche Bank
33
Deutsche Bank
Germany
$1.36M -$2.35M -161,525 -63%
Swiss National Bank
34
Swiss National Bank
Switzerland
$968K – – –
California State Teachers Retirement System (CalSTRS)
35
California State Teachers Retirement System (CalSTRS)
California
$897K +$34.3K +2,352 +4%
California Public Employees Retirement System
36
California Public Employees Retirement System
California
$834K -$42.8K -2,932 -5%
D.E. Shaw & Co
37
D.E. Shaw & Co
New York
$825K -$92.7K -6,358 -10%
AllianceBernstein
38
AllianceBernstein
Tennessee
$819K -$14.7M -1,007,495 -95%
VEA
39
Virtus ETF Advisers
New York
$793K +$495K +33,902 +166%
Group One Trading
40
Group One Trading
Illinois
$703K +$453K +31,069 +181%
PCM
41
Price Capital Management
Louisiana
$689K +$689K +47,232 New
New York State Common Retirement Fund
42
New York State Common Retirement Fund
New York
$607K -$945K -64,798 -61%
State of Wisconsin Investment Board
43
State of Wisconsin Investment Board
Wisconsin
$596K +$43.7K +3,000 +8%
CS
44
Credit Suisse
Switzerland
$595K -$156K -10,675 -21%
RhumbLine Advisers
45
RhumbLine Advisers
Massachusetts
$579K +$48.3K +3,309 +9%
Parallax Volatility Advisers
46
Parallax Volatility Advisers
California
$509K -$674K -46,293 -57%
Invesco
47
Invesco
Georgia
$488K +$298K +20,446 +157%
Russell Investments Group
48
Russell Investments Group
United Kingdom
$467K – – –
Balyasny Asset Management
49
Balyasny Asset Management
Illinois
$461K +$324K +22,202 +236%
Manulife (Manufacturers Life Insurance)
50
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$437K +$29.6K +2,035 +7%
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