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Prothena Corp

145 hedge funds and large institutions have $1.86B invested in Prothena Corp in 2016 Q4 according to their latest regulatory filings, with 20 funds opening new positions, 40 increasing their positions, 49 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed

109.84% more ownership

Funds ownership: 0%109.84% (+110%)

43% more call options, than puts

Call options by funds: $7.06M | Put options by funds: $4.94M

11% more first-time investments, than exits

New positions opened: 20 | Existing positions closed: 18

1% less funds holding

Funds holding: 146145 (-1)

16% less capital invested

Capital invested by funds: $2.22B → $1.86B (-$360M)

18% less repeat investments, than reductions

Existing positions increased: 40 | Existing positions reduced: 49

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
3.63%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.03%
New
20
Increased
40
Reduced
49
Closed
18
Calls
$7.06M
Puts
$4.94M
Net Calls
+$2.12M
Net Calls Change
+$20.3M
Name Holding Trade Value Shares
Change
Change in
Stake
WIM
1
Woodford Investment Management
United Kingdom
$507M +$483K +8,760 +0.1%
Fidelity Investments
2
Fidelity Investments
Massachusetts
$254M +$766K +13,883 +0.3%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$163M -$2.5M -45,373 -1%
Wellington Management Group
4
Wellington Management Group
Massachusetts
$149M +$338K +6,117 +0.2%
BFA
5
BlackRock Fund Advisors
California
$74.5M +$9.83M +178,097 +13%
Capital World Investors
6
Capital World Investors
California
$65.1M
State Street
7
State Street
Massachusetts
$53.4M +$756K +13,694 +1%
PAI
8
Palo Alto Investors
California
$48.9M +$3.28M +59,400 +6%
BIT
9
BlackRock Institutional Trust
California
$42.9M -$192K -3,486 -0.4%
AllianceBernstein
10
AllianceBernstein
Tennessee
$40.5M +$2.35M +42,672 +5%
RG
11
Redmile Group
California
$32.2M -$2.64M -47,934 -7%
Vanguard Group
12
Vanguard Group
Pennsylvania
$29.6M +$571K +10,348 +2%
ORI
13
Oak Ridge Investments
Illinois
$23.7M +$8.03M +145,580 +43%
Jennison Associates
14
Jennison Associates
New York
$20.1M +$92.4K +1,675 +0.4%
PA
15
Pinnacle Associates
New York
$20M -$1.32M -23,950 -6%
Northern Trust
16
Northern Trust
Illinois
$19.5M +$144K +2,616 +0.7%
Wells Fargo
17
Wells Fargo
California
$18.3M -$105K -1,910 -0.5%
Norges Bank
18
Norges Bank
Norway
$18.3M
BB
19
BB Biotech
Switzerland
$17.2M
Westfield Capital Management
20
Westfield Capital Management
Massachusetts
$16.1M +$2.82M +51,125 +18%
RSCM
21
Rock Springs Capital Management
Maryland
$15.2M +$82.8K +1,500 +0.5%
Geode Capital Management
22
Geode Capital Management
Massachusetts
$13.8M +$833K +15,099 +6%
Invesco
23
Invesco
Georgia
$12.9M -$1.49K -27 -0%
VOYA Investment Management
24
VOYA Investment Management
Georgia
$12.2M -$701K -12,712 -5%
Loomis, Sayles & Company
25
Loomis, Sayles & Company
Massachusetts
$9.64M +$10.8M +195,970 New

PRTA Hedge Fund Activity: Q4 2016 in Review

145 of the 4,000 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q4 2016, worth a combined $1.86B — down 16% from $2.22B a quarter earlier.

Buyers outnumbered sellers: 20 funds opened new PRTA positions and 18 closed out — a net gain of 2 holders — while 40 added to existing stakes and 49 trimmed.

The largest buyer was Loomis, Sayles & Company, opening a new position worth an estimated $10.8M. The largest seller was PointState Capital, exiting entirely with an estimated $21M sold.

  • 145 institutional investors held Prothena Corp (PRTA) as of Q4 2016, down from 146 in Q3 2016.
  • Funds reported $1.86B of Prothena Corp stock for Q4 2016, down 16% quarter-over-quarter.
  • 20 funds opened new Prothena Corp positions in Q4 2016 and 18 closed out, a net change of +2 holders.
  • The largest Prothena Corp buyer in Q4 2016 was Loomis, Sayles & Company, an estimated $10.8M added.
  • The largest Prothena Corp seller in Q4 2016 was PointState Capital, an estimated $21M sold.

Based on aggregated 13F filings for Q4 2016.