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Prothena Corp

145 hedge funds and large institutions have $2.3B invested in Prothena Corp in 2017 Q2 according to their latest regulatory filings, with 17 funds opening new positions, 54 increasing their positions, 34 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed

59% more repeat investments, than reductions

Existing positions increased: 54 | Existing positions reduced: 34

1% less funds holding

Funds holding: 146145 (-1)

1% less capital invested

Capital invested by funds: $2.32B → $2.3B (-$18.6M)

6% less first-time investments, than exits

New positions opened: 17 | Existing positions closed: 18

6.53% less ownership

Funds ownership: 118.37%111.84% (-6.5%)

17% less call options, than puts

Call options by funds: $9.05M | Put options by funds: $10.9M

50% less funds holding in top 10

Funds holding in top 10: 21 (-1)

Holders
145
Holders Change
-1
Holders Change %
-0.68%
% of All Funds
3.62%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.02%
New
17
Increased
54
Reduced
34
Closed
18
Calls
$9.05M
Puts
$10.9M
Net Calls
-$1.8M
Net Calls Change
+$702K
Name Holding Trade Value Shares
Change
Change in
Stake
WIM
1
Woodford Investment Management
United Kingdom
$617M +$15.7M +294,213 +3%
Fidelity Investments
2
Fidelity Investments
Massachusetts
$308M +$2.13M +39,926 +0.7%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$239M -$3.22M -60,499 -1%
Wellington Management Group
4
Wellington Management Group
Massachusetts
$177M +$6.12M +114,850 +4%
BlackRock
5
BlackRock
New York
$160M +$11.4M +213,578 +8%
Capital World Investors
6
Capital World Investors
California
$71.6M
State Street
7
State Street
Massachusetts
$63.9M +$6.03M +113,193 +11%
PAI
8
Palo Alto Investors
California
$58.1M +$964K +18,100 +2%
AllianceBernstein
9
AllianceBernstein
Tennessee
$48.5M +$3.04M +57,002 +7%
Vanguard Group
10
Vanguard Group
Pennsylvania
$38.6M +$705K +13,226 +2%
Westfield Capital Management
11
Westfield Capital Management
Massachusetts
$37M +$23.7M +444,966 +186%
RG
12
Redmile Group
California
$27.6M -$18.1M -339,785 -40%
Jennison Associates
13
Jennison Associates
New York
$22.3M +$124K +2,321 +0.6%
ORI
14
Oak Ridge Investments
Illinois
$21.9M -$778K -14,598 -3%
Northern Trust
15
Northern Trust
Illinois
$21.8M -$1.05M -19,680 -5%
PA
16
Pinnacle Associates
New York
$20M -$972K -18,250 -5%
BB
17
BB Biotech
Switzerland
$18.9M
Geode Capital Management
18
Geode Capital Management
Massachusetts
$18.3M +$1.04M +19,511 +6%
Loomis, Sayles & Company
19
Loomis, Sayles & Company
Massachusetts
$18.1M +$380K +7,139 +2%
Norges Bank
20
Norges Bank
Norway
$16.8M -$2.58M -48,469 -13%
RSCM
21
Rock Springs Capital Management
Maryland
$16.8M
Goldman Sachs
22
Goldman Sachs
New York
$16.6M -$1.08M -20,357 -6%
Wells Fargo
23
Wells Fargo
California
$15.1M -$1.95M -36,619 -12%
PC
24
PointState Capital
New York
$14.7M +$14.5M +272,500 New
Invesco
25
Invesco
Georgia
$13.9M -$248K -4,653 -2%

PRTA Hedge Fund Activity: Q2 2017 in Review

145 of the 4,011 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q2 2017, worth a combined $2.3B — down 0.8% from $2.32B a quarter earlier.

Sellers outnumbered buyers: 18 funds closed out of PRTA and 17 opened new positions — a net loss of 1 holder — while 34 trimmed existing stakes and 54 added.

The largest buyer was Westfield Capital Management, adding an estimated $23.7M. The largest seller was Redmile Group, cutting an estimated $18.1M.

  • 145 institutional investors held Prothena Corp (PRTA) as of Q2 2017, down from 146 in Q1 2017.
  • Funds reported $2.3B of Prothena Corp stock for Q2 2017, down 0.8% quarter-over-quarter.
  • 17 funds opened new Prothena Corp positions in Q2 2017 and 18 closed out, a net change of -1 holder.
  • The largest Prothena Corp buyer in Q2 2017 was Westfield Capital Management, an estimated $23.7M added.
  • The largest Prothena Corp seller in Q2 2017 was Redmile Group, an estimated $18.1M sold.

Based on aggregated 13F filings for Q2 2017.