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Prothena Corp
PRTA

Overview Fund Activity

191 hedge funds and large institutions have $2.51B invested in Prothena Corp in 2023 Q1 according to their latest regulatory filings, with 27 funds opening new positions, 70 increasing their positions, 56 reducing their positions, and 32 closing their positions.

Holders
191
Holders Change
-10
Holders Change %
-4.98%
% of All Funds
3.06%
Holding in Top 10
7
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-12.5%
% of All Funds
0.11%
New
27
Increased
70
Reduced
56
Closed
32
Calls
$7.72M
Puts
$3.57M
Net Calls
+$4.15M
Net Calls Change
-$12.3M

Top Buyers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$328M
2
Wellington Management Group
2
Wellington Management Group
Massachusetts
$110M
3
Bank of America
3
Bank of America
North Carolina
$27.4M
4
Janus Henderson Group
4
Janus Henderson Group
United Kingdom
$77.4M
5
Two Sigma Investments
5
Two Sigma Investments
New York
$17.7M

Top Sellers

1
APM
1
Avidity Partners Management
Texas
$51.8M
2
SCM
2
Suvretta Capital Management
New York
$0
3
WP
3
Woodline Partners
California
$0
4
MRCP
4
Maple Rock Capital Partners
Ontario, Canada
$14.2M
5
PHS
5
PFM Health Sciences
California
$37.5M
Name Holding Trade Value Shares
Change 		Shares
Change %
FC
26
Finepoint Capital
Massachusetts
$16.1M +$422K +8,700 +3%
JPMorgan Chase & Co
27
JPMorgan Chase & Co
New York
$15.9M -$3.72M -76,833 -19%
BC
28
Boxer Capital
California
$14.5M – – –
Charles Schwab
29
Charles Schwab
California
$14.5M -$91.1K -1,879 -0.6%
MRCP
30
Maple Rock Capital Partners
Ontario, Canada
$14.2M -$5.13M -105,830 -26%
Morgan Stanley
31
Morgan Stanley
New York
$13.8M +$5.07M +104,504 +58%
PA
32
Perceptive Advisors
New York
$11.5M – – –
GIM
33
Granahan Investment Management
Massachusetts
$11.3M +$1.59M +32,702 +16%
UBS AM
34
UBS AM
Illinois
$11M -$105K -2,166 -0.9%
Goldman Sachs
35
Goldman Sachs
New York
$10.9M +$437K +9,022 +4%
Norges Bank
36
Norges Bank
Norway
$10.6M +$7.73M +159,555 +269%
Millennium Management
37
Millennium Management
New York
$9.43M -$920K -18,971 -9%
Bank of New York Mellon
38
Bank of New York Mellon
New York
$7.95M +$1.31M +27,095 +20%
Rafferty Asset Management
39
Rafferty Asset Management
New York
$6.87M +$162K +3,336 +2%
PA
40
Pinnacle Associates
New York
$6.56M -$111K -2,290 -2%
BC
41
Birchview Capital
Vermont
$6.22M +$58.2K +1,200 +0.9%
FLSM
42
Frazier Life Sciences Management
California
$6.2M – – –
Ensign Peak Advisors
43
Ensign Peak Advisors
Utah
$6.09M +$9.69K +200 +0.2%
SAM
44
Sectoral Asset Management
Quebec, Canada
$5.95M +$366K +7,550 +7%
Man Group
45
Man Group
United Kingdom
$5.71M -$1.43M -23,697 Closed
Citigroup
46
Citigroup
New York
$5.56M +$2.49M +51,400 +81%
SG Americas Securities
47
SG Americas Securities
New York
$5.3M +$1.48M +30,629 +39%
Mariner
48
Mariner
Kansas
$5.19M +$3.89M +80,180 +298%
Connor, Clark & Lunn Investment Management (CC&L)
49
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$4.33M +$1.41M +28,992 +48%
DA
50
DCF Advisers
Connecticut
$4.08M +$492K +10,150 +14%
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