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Prothena Corp
PRTA

166 hedge funds and large institutions have $1.21B invested in Prothena Corp in 2022 Q2 according to their latest regulatory filings, with 16 funds opening new positions, 44 increasing their positions, 54 reducing their positions, and 21 closing their positions.

New
Increased
Maintained
Reduced
Closed

858% more call options, than puts

Call options by funds: $15.5M | Put options by funds: $1.62M

0.77% more ownership

Funds ownership: 94.4% → 95.16% (+0.77%)

0% more funds holding in top 10

Funds holding in top 10: 5 → 5 (0)

5% less funds holding

Funds holding: 174 → 166 (-8)

19% less repeat investments, than reductions

Existing positions increased: 44 | Existing positions reduced: 54

24% less first-time investments, than exits

New positions opened: 16 | Existing positions closed: 21

26% less capital invested

Capital invested by funds: $1.64B → $1.21B (-$427M)

Holders
166
Holders Change
-8
Holders Change %
-4.6%
% of All Funds
2.8%
Holding in Top 10
5
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.08%
New
16
Increased
44
Reduced
54
Closed
21
Calls
$15.5M
Puts
$1.62M
Net Calls
+$13.9M
Net Calls Change
+$807K

Top Buyers

1
FC
Finepoint Capital
Massachusetts
+$13.4M
2
PHS
PFM Health Sciences
California
+$10.1M
3
Renaissance Technologies
Renaissance Technologies
New York
+$8.54M
4
Fidelity Investments
Fidelity Investments
Massachusetts
+$7.31M
5
Janus Henderson Group
Janus Henderson Group
United Kingdom
+$5.19M

Top Sellers

1
BlackRock
BlackRock
New York
-$11.4M
2
PBA
Paradigm Biocapital Advisors
New York
-$9.8M
3
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
-$4.33M
4
State Street
State Street
Massachusetts
-$3.55M
5
Federated Hermes
Federated Hermes
Pennsylvania
-$2.83M
Name Holding Trade Value Shares
Change 		Change in
Stake
Wells Fargo
101
Wells Fargo
California
$332K -$440K -15,052 -55%
Mirae Asset Global Investments
102
Mirae Asset Global Investments
South Korea
$296K +$319K +10,890 New
EFM
103
E Fund Management
China
$254K +$62.7K +2,143 +30%
LNWWM
104
Laird Norton Wetherby Wealth Management
California
$247K +$73.1K +2,500 +38%
ASRS
105
Arizona State Retirement System
Arizona
$240K +$1.14K +39 +0.4%
BNP Paribas Financial Markets
106
BNP Paribas Financial Markets
France
$225K +$153K +5,226 +170%
ProShare Advisors
107
ProShare Advisors
Maryland
$207K -$116K -3,979 -34%
Zurich Cantonal Bank
108
Zurich Cantonal Bank
Switzerland
$190K – – –
Public Employees Retirement Association of Colorado
109
Public Employees Retirement Association of Colorado
Colorado
$178K – – –
FPS
110
Fieldpoint Private Securities
Connecticut
$163K +$58.5K +2,000 +50%
AB
111
Amalgamated Bank
New York
$153K +$2.63K +90 +2%
TRCT
112
Tower Research Capital (TRC)
New York
$137K -$92.7K -3,167 -39%
VEA
113
Virtus ETF Advisers
New York
$123K +$24.5K +837 +23%
Federated Hermes
114
Federated Hermes
Pennsylvania
$122K -$2.83M -96,726 -96%
Simplex Trading
115
Simplex Trading
Illinois
$87K +$94.5K +3,231 New
AIP
116
Ameritas Investment Partners
Nebraska
$73K – – –
MLICM
117
Metropolitan Life Insurance Company (MetLife)
New York
$63.2K – – –
BDWM
118
Brewin Dolphin Wealth Management
Ireland
$55K – – –
Barclays
119
Barclays
United Kingdom
$48K -$180K -6,149 -78%
Lazard Asset Management
120
Lazard Asset Management
New York
$47K – – –
Macquarie Group
121
Macquarie Group
Australia
$42K – – –
Osaic Holdings
122
Osaic Holdings
Arizona
$33K +$27K +923 +292%
CAPTRUST Financial Advisors
123
CAPTRUST Financial Advisors
North Carolina
$32K -$4.18K -143 -11%
HWM
124
HighMark Wealth Management
Minnesota
$32K – – –
US Bancorp
125
US Bancorp
Minnesota
$31K – – –
3 4
5
6 7

PRTA Hedge Fund Activity: Q2 2022 in Review

166 of the 5,936 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q2 2022, worth a combined $1.21B — down 26% from $1.64B a quarter earlier.

Sellers outnumbered buyers: 21 funds closed out of PRTA and 16 opened new positions — a net loss of 5 holders — while 54 trimmed existing stakes and 44 added.

The largest buyer was Finepoint Capital, opening a new position worth an estimated $13.4M. The largest seller was BlackRock, cutting an estimated $11.4M.

  • 166 institutional investors held Prothena Corp (PRTA) as of Q2 2022, down from 174 in Q1 2022.
  • Funds reported $1.21B of Prothena Corp stock for Q2 2022, down 26% quarter-over-quarter.
  • 16 funds opened new Prothena Corp positions in Q2 2022 and 21 closed out, a net change of -5 holders.
  • The largest Prothena Corp buyer in Q2 2022 was Finepoint Capital, an estimated $13.4M added.
  • The largest Prothena Corp seller in Q2 2022 was BlackRock, an estimated $11.4M sold.

Based on aggregated 13F filings for Q2 2022.