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Prothena Corp

140 hedge funds and large institutions have $355M invested in Prothena Corp in 2020 Q3 according to their latest regulatory filings, with 19 funds opening new positions, 32 increasing their positions, 49 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed

6% more first-time investments, than exits

New positions opened: 19 | Existing positions closed: 18

1% more funds holding

Funds holding: 139140 (+1)

3.69% less ownership

Funds ownership: 94.43%90.74% (-3.7%)

10% less capital invested

Capital invested by funds: $394M → $355M (-$39.6M)

22% less call options, than puts

Call options by funds: $1.6M | Put options by funds: $2.05M

35% less repeat investments, than reductions

Existing positions increased: 32 | Existing positions reduced: 49

50% less funds holding in top 10

Funds holding in top 10: 21 (-1)

Holders
140
Holders Change
+1
Holders Change %
+0.72%
% of All Funds
2.82%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.02%
New
19
Increased
32
Reduced
49
Closed
18
Calls
$1.6M
Puts
$2.05M
Net Calls
-$449K
Net Calls Change
+$1.15M
Name Holding Trade Value Shares
Change
Change in
Stake
Acadian Asset Management
26
Acadian Asset Management
Massachusetts
$2.1M -$192K -15,939 -7%
Adage Capital Partners
27
Adage Capital Partners
Massachusetts
$2M +$2.11M +175,000 +700%
EP
28
Eversept Partners
New York
$1.97M +$539K +44,815 +29%
Charles Schwab
29
Charles Schwab
California
$1.83M -$657K -54,627 -23%
TCM
30
Tang Capital Management
California
$1.78M -$1.14M -95,135 -35%
WP
31
Woodline Partners
California
$1.77M -$5.1M -423,694 -71%
Axa
32
Axa
France
$1.76M
Bank of New York Mellon
33
Bank of New York Mellon
New York
$1.49M -$131K -10,867 -7%
PIM
34
Platinum Investment Management
Australia
$1.28M
Citadel Advisors
35
Citadel Advisors
Florida
$1.22M -$884K -73,474 -38%
Two Sigma Investments
36
Two Sigma Investments
New York
$997K -$175K -14,513 -13%
Russell Investments Group
37
Russell Investments Group
United Kingdom
$960K -$186K -15,441 -14%
PPA
38
Parametric Portfolio Associates
Washington
$920K +$294K +24,457 +36%
Morgan Stanley
39
Morgan Stanley
New York
$882K -$144K -11,990 -12%
Massachusetts Financial Services
40
Massachusetts Financial Services
Massachusetts
$871K +$1.05M +87,221 New
Prudential Financial
41
Prudential Financial
New Jersey
$712K -$141K -11,697 -14%
Man Group
42
Man Group
United Kingdom
$697K +$28.9K +2,400 +4%
California Public Employees Retirement System
43
California Public Employees Retirement System
California
$696K +$18K +1,500 +2%
State of Wisconsin Investment Board
44
State of Wisconsin Investment Board
Wisconsin
$619K
RhumbLine Advisers
45
RhumbLine Advisers
Massachusetts
$612K -$84.8K -7,046 -10%
Swiss National Bank
46
Swiss National Bank
Switzerland
$578K
AllianceBernstein
47
AllianceBernstein
Tennessee
$550K
Bank of America
48
Bank of America
North Carolina
$504K +$230K +19,131 +61%
Ameriprise
49
Ameriprise
Minnesota
$499K +$36.2K +3,008 +6%
Susquehanna International Group
50
Susquehanna International Group
Pennsylvania
$481K +$43.6K +3,626 +8%

PRTA Hedge Fund Activity: Q3 2020 in Review

140 of the 4,956 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q3 2020, worth a combined $355M — down 10% from $394M a quarter earlier.

Buyers outnumbered sellers: 19 funds opened new PRTA positions and 18 closed out — a net gain of 1 holder — while 32 added to existing stakes and 49 trimmed.

The largest buyer was BlackRock, adding an estimated $8.32M. The largest seller was Soleus Capital Management, exiting entirely with an estimated $7.06M sold.

  • 140 institutional investors held Prothena Corp (PRTA) as of Q3 2020, up from 139 in Q2 2020.
  • Funds reported $355M of Prothena Corp stock for Q3 2020, down 10% quarter-over-quarter.
  • 19 funds opened new Prothena Corp positions in Q3 2020 and 18 closed out, a net change of +1 holder.
  • The largest Prothena Corp buyer in Q3 2020 was BlackRock, an estimated $8.32M added.
  • The largest Prothena Corp seller in Q3 2020 was Soleus Capital Management, an estimated $7.06M sold.

Based on aggregated 13F filings for Q3 2020.