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Prothena Corp

196 hedge funds and large institutions have $3.54B invested in Prothena Corp in 2023 Q2 according to their latest regulatory filings, with 31 funds opening new positions, 72 increasing their positions, 58 reducing their positions, and 26 closing their positions.

New
Increased
Maintained
Reduced
Closed

41% more capital invested

Capital invested by funds: $2.51B → $3.54B (+$1.03B)

24% more repeat investments, than reductions

Existing positions increased: 72 | Existing positions reduced: 58

19% more first-time investments, than exits

New positions opened: 31 | Existing positions closed: 26

3% more funds holding

Funds holding: 191196 (+5)

0.05% more ownership

Funds ownership: 98.44%98.49% (+0.05%)

14% less funds holding in top 10

Funds holding in top 10: 76 (-1)

36% less call options, than puts

Call options by funds: $19.7M | Put options by funds: $30.9M

Holders
196
Holders Change
+5
Holders Change %
+2.62%
% of All Funds
3.08%
Holding in Top 10
6
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-14.29%
% of All Funds
0.09%
New
31
Increased
72
Reduced
58
Closed
26
Calls
$19.7M
Puts
$30.9M
Net Calls
-$11.2M
Net Calls Change
-$15.4M
Name Holding Trade Value Shares
Change
Change in
Stake
ACM
51
Atika Capital Management
New York
$6.66M +$3.16M +48,922 +101%
TD Asset Management
52
TD Asset Management
Ontario, Canada
$6.11M +$949K +14,707 +20%
Swiss National Bank
53
Swiss National Bank
Switzerland
$5.87M +$826K +12,800 +18%
DA
54
DCF Advisers
Connecticut
$5.79M +$32.3K +500 +0.6%
Principal Financial Group
55
Principal Financial Group
Iowa
$5.07M +$1.25M +19,454 +35%
EGI
56
EAM Global Investors
California
$4.84M +$500K +7,752 +12%
Barclays
57
Barclays
United Kingdom
$4.63M +$207K +3,208 +5%
Bank of Montreal
58
Bank of Montreal
Ontario, Canada
$4.61M +$4.31M +66,767 New
Manulife (Manufacturers Life Insurance)
59
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$4.47M +$545K +8,444 +15%
Invesco
60
Invesco
Georgia
$4.37M +$2.3M +35,593 +126%
RhumbLine Advisers
61
RhumbLine Advisers
Massachusetts
$4.15M +$319K +4,946 +9%
Handelsbanken Fonder
62
Handelsbanken Fonder
Sweden
$4.02M +$445K +6,900 +13%
CS
63
Credit Suisse
Switzerland
$3.92M +$1.01M +15,682 +38%
Wells Fargo
64
Wells Fargo
California
$3.81M +$544K +8,434 +18%
Walleye Capital
65
Walleye Capital
New York
$3.8M +$3.59M +55,652 New
RC
66
RBF Capital
California
$3.71M
Jane Street
67
Jane Street
New York
$3.65M +$2.2M +34,082 +176%
PI
68
Putnam Investments
Massachusetts
$3.6M +$118K +1,823 +4%
IHAM
69
Integral Health Asset Management
New York
$3.55M +$3.35M +52,000 New
SCM
70
Silverarc Capital Management
Massachusetts
$3.39M +$3.21M +49,721 New
EI
71
EAM Investors
California
$3.39M +$871K +13,500 +37%
Jennison Associates
72
Jennison Associates
New York
$3.36M
AllianceBernstein
73
AllianceBernstein
Tennessee
$3.36M +$276K +4,280 +10%
California State Teachers Retirement System (CalSTRS)
74
California State Teachers Retirement System (CalSTRS)
California
$3.31M +$271K +4,196 +9%
Citigroup
75
Citigroup
New York
$3.25M -$4.34M -67,248 -59%

PRTA Hedge Fund Activity: Q2 2023 in Review

196 of the 6,369 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q2 2023, worth a combined $3.54B — up 41% from $2.51B a quarter earlier.

Buyers outnumbered sellers: 31 funds opened new PRTA positions and 26 closed out — a net gain of 5 holders — while 72 added to existing stakes and 58 trimmed.

The largest buyer was Fidelity Investments, adding an estimated $74.2M. The largest seller was Avidity Partners Management, cutting an estimated $34.4M.

  • 196 institutional investors held Prothena Corp (PRTA) as of Q2 2023, up from 191 in Q1 2023.
  • Funds reported $3.54B of Prothena Corp stock for Q2 2023, up 41% quarter-over-quarter.
  • 31 funds opened new Prothena Corp positions in Q2 2023 and 26 closed out, a net change of +5 holders.
  • The largest Prothena Corp buyer in Q2 2023 was Fidelity Investments, an estimated $74.2M added.
  • The largest Prothena Corp seller in Q2 2023 was Avidity Partners Management, an estimated $34.4M sold.

Based on aggregated 13F filings for Q2 2023.