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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
Swiss National Bank
51
Swiss National Bank
Switzerland
$1.95M +$235K +6,000 +14%
Westfield Capital Management
52
Westfield Capital Management
Massachusetts
$1.89M
CCM
53
Cupps Capital Management
Illinois
$1.79M +$1.7M +43,545 New
American Century Companies
54
American Century Companies
Missouri
$1.72M +$31.6K +807 +2%
SM
55
Sabby Management
Florida
$1.65M +$1.57M +40,000 New
MIG
56
Mariner Investment Group
New York
$1.57M +$783K +20,000 +110%
PPA
57
Parametric Portfolio Associates
Washington
$1.43M +$1.03M +26,314 +312%
New York State Common Retirement Fund
58
New York State Common Retirement Fund
New York
$1.42M +$133K +3,400 +11%
RhumbLine Advisers
59
RhumbLine Advisers
Massachusetts
$1.42M +$141K +3,600 +12%
Thrivent Financial for Lutherans
60
Thrivent Financial for Lutherans
Minnesota
$1.32M +$747K +19,100 +147%
BG
61
Bellevue Group
Switzerland
$1.28M +$1.21M +31,000 New
ProShare Advisors
62
ProShare Advisors
Maryland
$1.22M -$13.9K -356 -1%
Citigroup
63
Citigroup
New York
$1.13M +$772K +19,715 +253%
Fisher Asset Management
64
Fisher Asset Management
Washington
$903K +$1.41K +36 +0.2%
UBS Group
65
UBS Group
Switzerland
$886K +$43.1K +1,101 +5%
Morgan Stanley
66
Morgan Stanley
New York
$824K +$48.6K +1,243 +7%
Manulife (Manufacturers Life Insurance)
67
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$822K +$32.7K +835 +4%
AQR Capital Management
68
AQR Capital Management
Connecticut
$821K -$139K -3,550 -15%
BG
69
BlackRock Group
United Kingdom
$785K +$140K +3,577 +23%
SAMC
70
Shinko Asset Management Company
Japan
$784K
AIG
71
American International Group
New York
$754K
State Board of Administration of Florida Retirement System
72
State Board of Administration of Florida Retirement System
Florida
$732K +$16.4K +420 +2%
DekaBank Deutsche Girozentrale
73
DekaBank Deutsche Girozentrale
Germany
$622K -$19.6K -500 -3%
DCM
74
Dupont Capital Management
Delaware
$596K +$376K +9,596 +197%
CCA
75
Checchi Capital Advisers
California
$577K

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.