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Prothena Corp
PRTA

153 hedge funds and large institutions have $2.79B invested in Prothena Corp in 2017 Q3 according to their latest regulatory filings, with 25 funds opening new positions, 51 increasing their positions, 34 reducing their positions, and 16 closing their positions.

New
Increased
Maintained
Reduced
Closed

100% more funds holding in top 10

Funds holding in top 10: 1 → 2 (+1)

56% more first-time investments, than exits

New positions opened: 25 | Existing positions closed: 16

50% more repeat investments, than reductions

Existing positions increased: 51 | Existing positions reduced: 34

21% more capital invested

Capital invested by funds: $2.3B → $2.79B (+$490M)

6% more funds holding

Funds holding: 145 → 153 (+8)

0.75% more ownership

Funds ownership: 111.84% → 112.59% (+0.75%)

7% less call options, than puts

Call options by funds: $10.9M | Put options by funds: $11.7M

Holders
153
Holders Change
+8
Holders Change %
+5.52%
% of All Funds
3.81%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.05%
New
25
Increased
51
Reduced
34
Closed
16
Calls
$10.9M
Puts
$11.7M
Net Calls
-$849K
Net Calls Change
+$954K

Top Buyers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$62.9M
2
PI
Putnam Investments
Massachusetts
+$15.9M
3
Wellington Management Group
Wellington Management Group
Massachusetts
+$5.98M
4
PC
PointState Capital
New York
+$4.89M
5
BlackRock
BlackRock
New York
+$3.6M

Top Sellers

1
RG
Redmile Group
California
-$27.6M
2
Citadel Advisors
Citadel Advisors
Florida
-$14.9M
3
Wells Fargo
Wells Fargo
California
-$14.7M
4
ORI
Oak Ridge Investments
Illinois
-$7.21M
5
OM
Opaleye Management
Massachusetts
-$4.6M
Name Holding Trade Value Shares
Change 		Change in
Stake
Thrivent Financial for Lutherans
51
Thrivent Financial for Lutherans
Minnesota
$2.76M – – –
AQR Capital Management
52
AQR Capital Management
Connecticut
$2.65M -$53.2K -868 -2%
Wells Fargo
53
Wells Fargo
California
$2.49M -$14.7M -240,622 -86%
BG
54
Bellevue Group
Switzerland
$2.42M -$221K -3,600 -9%
Russell Investments Group
55
Russell Investments Group
United Kingdom
$2.42M +$211K +3,449 +10%
UBS Group
56
UBS Group
Switzerland
$2.17M +$322K +5,256 +19%
ARTA
57
A.R.T. Advisors
New York
$1.93M +$815K +13,300 +81%
Barclays
58
Barclays
United Kingdom
$1.87M +$975K +15,922 +123%
Manulife (Manufacturers Life Insurance)
59
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$1.81M -$33K -539 -2%
State of Wisconsin Investment Board
60
State of Wisconsin Investment Board
Wisconsin
$1.75M – – –
Royal Bank of Canada
61
Royal Bank of Canada
Ontario, Canada
$1.74M -$144K -2,358 -8%
PPA
62
Parametric Portfolio Associates
Washington
$1.67M +$463K +7,560 +41%
AIG
63
American International Group
New York
$1.67M +$118K +1,925 +8%
Handelsbanken Fonder
64
Handelsbanken Fonder
Sweden
$1.62M – – –
ProShare Advisors
65
ProShare Advisors
Maryland
$1.57M +$78.8K +1,287 +6%
American Century Companies
66
American Century Companies
Missouri
$1.55M +$208K +3,398 +17%
Fisher Asset Management
67
Fisher Asset Management
Washington
$1.41M -$551 -9 -0%
WBC
68
Westpac Banking Corp
Australia
$1.37M +$1.3M +21,200 New
NFA
69
Nationwide Fund Advisors
Ohio
$1.32M -$1.6M -26,182 -56%
Hudson Bay Capital Management
70
Hudson Bay Capital Management
Connecticut
$1.29M -$1.84M -30,000 -60%
DekaBank Deutsche Girozentrale
71
DekaBank Deutsche Girozentrale
Germany
$1.28M – – –
Bank of America
72
Bank of America
North Carolina
$1.25M +$466K +7,613 +65%
State Board of Administration of Florida Retirement System
73
State Board of Administration of Florida Retirement System
Florida
$1.25M – – –
N
74
Nuveen
North Carolina
$1.22M -$1.1K -18 -0.1%
CCMH
75
Cornerstone Capital Management Holdings
New York
$1.17M – – –
1 2
3
4 5

PRTA Hedge Fund Activity: Q3 2017 in Review

153 of the 4,011 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q3 2017, worth a combined $2.79B — up 21% from $2.3B a quarter earlier.

Buyers outnumbered sellers: 25 funds opened new PRTA positions and 16 closed out — a net gain of 9 holders — while 51 added to existing stakes and 34 trimmed.

The largest buyer was T. Rowe Price Associates, adding an estimated $62.9M. The largest seller was Redmile Group, exiting entirely with an estimated $27.6M sold.

  • 153 institutional investors held Prothena Corp (PRTA) as of Q3 2017, up from 145 in Q2 2017.
  • Funds reported $2.79B of Prothena Corp stock for Q3 2017, up 21% quarter-over-quarter.
  • 25 funds opened new Prothena Corp positions in Q3 2017 and 16 closed out, a net change of +9 holders.
  • The largest Prothena Corp buyer in Q3 2017 was T. Rowe Price Associates, an estimated $62.9M added.
  • The largest Prothena Corp seller in Q3 2017 was Redmile Group, an estimated $27.6M sold.

Based on aggregated 13F filings for Q3 2017.