Latest Institutional Purchases of Prothena Corp Public LTD CO (PRTA)
This list provides information on the latest institutional transactions involving Prothena Corp Public LTD CO (PRTA) stock that were buys. The list includes the name of the institution, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the purchase has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Nov 14, 2025
Q3 2025
|
Rubric Capital Management LP
New York, NY |
BUY
|
- |
1.54MNew |
$9.58M - $15M
|
1.54M
$15.8M
|
|
|
Nov 14, 2025
Q3 2025
|
D. E. Shaw & Co., Inc.
New York, NY |
BUY
|
- |
924K+ 236.0% |
$5.75M - $9.02M
|
1.32M
$13.5M
|
|
|
Nov 13, 2025
Q3 2025
|
Arrowstreet Capital, Limited Partnership
Boston, MA |
BUY
|
- |
654KNew |
$4.07M - $6.39M
|
654K
$6.71M
|
|
|
Nov 14, 2025
Q3 2025
|
Steven Cohen
Point72 Asset Management, L.P. | Stamford, Ct
|
BUY
|
- |
647KNew |
$4.02M - $6.31M
|
647K
$6.63M
|
|
|
Nov 12, 2025
Q3 2025
|
Nuveen, LLC
Charlotte, NC |
BUY
|
- |
546K+ 447.08% |
$3.4M - $5.33M
|
668K
$6.85M
|
|
|
Nov 13, 2025
Q3 2025
|
Jane Street Group, LLC
New York, NY |
BUY
|
- |
502K+ 427.69% |
$3.12M - $4.9M
|
620K
$6.35M
|
|
|
Nov 14, 2025
Q3 2025
|
Israel Englander
Millennium Management LLC | New York, Ny
|
BUY
|
- |
451K+ 264.11% |
$2.8M - $4.4M
|
621K
$6.37M
|
|
|
Nov 14, 2025
Q3 2025
|
Algert Global LLC
San Francisco, CA |
BUY
|
- |
398K+ 825.88% |
$2.47M - $3.88M
|
446K
$4.57M
|
|
|
Nov 07, 2025
Q3 2025
|
Jpmorgan Chase & CO
New York, NY |
BUY
|
- |
364K+ 97.8% |
$2.26M - $3.55M
|
736K
$7.54M
|
|
|
Nov 13, 2025
Q3 2025
|
Ubs Group Ag
|
BUY
|
- |
340K+ 560.77% |
$2.12M - $3.32M
|
401K
$4.11M
|
|
|
Nov 13, 2025
Q3 2025
|
Jim Simons
Renaissance Technologies LLC | New York, Ny
|
BUY
|
- |
281K+ 311.64% |
$1.75M - $2.74M
|
371K
$3.81M
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
PUT |
261K+ 54.39% |
$1.62M - $2.55M
|
740K
$7.59M
|
|
|
Nov 14, 2025
Q3 2025
|
Two Sigma Investments, LP
New York, NY |
BUY
|
- |
225K+ 111.77% |
$1.4M - $2.2M
|
427K
$4.37M
|
|
|
Nov 13, 2025
Q3 2025
|
Acadian Asset Management LLC
Boston, MA |
BUY
|
- |
221K+ 21.71% |
$1.38M - $2.16M
|
1.24M
$12.7M
|
|
|
Nov 14, 2025
Q3 2025
|
Aqr Capital Management LLC
Greenwich, CT |
BUY
|
- |
215KNew |
$1.33M - $2.09M
|
215K
$2.2M
|
|
|
Nov 14, 2025
Q3 2025
|
Mariner, LLC
Overland Park, KS |
BUY
|
- |
204K+ 52.8% |
$1.27M - $1.99M
|
591K
$6.06M
|
|
|
Nov 13, 2025
Q3 2025
|
Jump Financial, LLC
Chicago, IL |
BUY
|
- |
186KNew |
$1.16M - $1.82M
|
186K
$1.91M
|
|
|
Nov 17, 2025
Q3 2025
|
Jacobs Levy Equity Management, Inc
Florham Park, NJ |
BUY
|
- |
183K+ 26.46% |
$1.14M - $1.79M
|
877K
$8.98M
|
|
|
Nov 14, 2025
Q3 2025
|
David A. Siegel
Two Sigma Advisers, LP | New York, Ny
|
BUY
|
- |
126K+ 90.06% |
$783K - $1.23M
|
266K
$2.72M
|
|
|
Oct 27, 2025
Q3 2025
|
Janney Montgomery Scott LLC
|
BUY
|
- |
107KNew |
$665K - $1.04M
|
107K
$1.1M
|
|
|
Oct 20, 2025
Q3 2025
|
Los Angeles Capital Management LLC
|
BUY
|
- |
103K+ 615.03% |
$639K - $1M
|
119K
$1.22M
|
|
|
Nov 13, 2025
Q3 2025
|
Birchview Capital, LP
Burlington, VT |
BUY
|
- |
98K+ 21.73% |
$610K - $956K
|
549K
$5.63M
|
|
|
Oct 07, 2025
Q3 2025
|
Assenagon Asset Management S.A.
|
BUY
|
- |
89.7KNew |
$558K - $876K
|
89.7K
$919K
|
|
|
Nov 14, 2025
Q3 2025
|
Man Group PLC
London, X0 |
BUY
|
- |
89.2K+ 208.69% |
$555K - $871K
|
132K
$1.35M
|
|
|
Nov 12, 2025
Q3 2025
|
Duncan Williams Asset Management, LLC
Memphis, TN |
BUY
|
- |
88.3KNew |
$549K - $862K
|
88.3K
$905K
|
|
|
Nov 12, 2025
Q3 2025
|
Geode Capital Management, LLC
Boston, MA |
BUY
|
- |
86K+ 9.22% |
$535K - $840K
|
1.02M
$10.4M
|
|
|
Nov 10, 2025
Q3 2025
|
Charles Schwab Investment Management Inc
San Francisco, CA |
BUY
|
- |
75.7K+ 27.53% |
$471K - $739K
|
351K
$3.6M
|
|
|
Nov 14, 2025
Q3 2025
|
Bank Of America Corp
Charlotte, NC |
BUY
|
- |
66.2K+ 31.36% |
$411K - $646K
|
277K
$2.84M
|
|
|
Nov 14, 2025
Q3 2025
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
BUY
|
- |
65.5K+ 71.23% |
$407K - $639K
|
157K
$1.61M
|
|
|
Nov 14, 2025
Q3 2025
|
Monimus Capital Management, LP
Woodbridge, NJ |
BUY
|
- |
51.6K+ 24.98% |
$321K - $503K
|
258K
$2.65M
|
|
|
Nov 14, 2025
Q3 2025
|
Palo Alto Investors LP
Palo Alto, CA |
BUY
|
- |
49.3K+ 3.87% |
$306K - $481K
|
1.32M
$13.6M
|
|
|
Nov 10, 2025
Q3 2025
|
Fox Run Management, L.L.C.
Greenwich, CT |
BUY
|
- |
44.3KNew |
$276K - $433K
|
44.3K
$454K
|
|
|
Nov 12, 2025
Q3 2025
|
Dcf Advisers, LLC
Greenwich, CT |
BUY
|
- |
44.2K+ 28.27% |
$275K - $432K
|
201K
$2.06M
|
|
|
Nov 14, 2025
Q3 2025
|
Quantinno Capital Management LP
New York, NY |
BUY
|
- |
41.6K+ 69.73% |
$259K - $406K
|
101K
$1.04M
|
|
|
Nov 13, 2025
Q3 2025
|
Jane Street Group, LLC
New York, NY |
BUY
|
PUT |
35.9K+ 25.1% |
$223K - $350K
|
179K
$1.83M
|
|
|
Nov 13, 2025
Q3 2025
|
Russell Investments Group, Ltd.
|
BUY
|
- |
31.6K+ 32.81% |
$196K - $308K
|
128K
$1.31M
|
|
|
Nov 14, 2025
Q3 2025
|
Hrt Financial LP
New York, NY |
BUY
|
- |
31.1KNew |
$193K - $304K
|
31.1K
$319K
|
|
|
Nov 12, 2025
Q3 2025
|
Proficio Capital Partners LLC
Newton, MA |
BUY
|
- |
30.1KNew |
$187K - $294K
|
30.1K
$309K
|
|
|
Nov 14, 2025
Q3 2025
|
Boothbay Fund Management, LLC
New York, NY |
BUY
|
- |
30KNew |
$187K - $293K
|
30K
$308K
|
|
|
Nov 14, 2025
Q3 2025
|
Sandia Investment Management LP
Boston, MA |
BUY
|
- |
30KNew |
$186K - $292K
|
30K
$307K
|
|
|
Nov 14, 2025
Q3 2025
|
Arizona Psprs Trust
Phoenix, AZ |
BUY
|
- |
27.7KNew |
$172K - $270K
|
27.7K
$284K
|
|
|
Oct 10, 2025
Q3 2025
|
Focused Wealth Management, Inc
|
BUY
|
- |
25K+ 77.81% |
$156K - $244K
|
57.1K
$586K
|
|
|
Nov 14, 2025
Q3 2025
|
Atom Investors LP
Austin, TX |
BUY
|
- |
21.3KNew |
$133K - $208K
|
21.3K
$218K
|
|
|
Nov 14, 2025
Q3 2025
|
Graham Capital Management, L.P.
Rowayton, CT |
BUY
|
- |
19.4K+ 56.84% |
$120K - $189K
|
53.4K
$547K
|
|
|
Nov 03, 2025
Q3 2025
|
Ballentine Partners, LLC
Waltham, MA |
BUY
|
- |
18.3KNew |
$114K - $179K
|
18.3K
$188K
|
|
|
Nov 14, 2025
Q3 2025
|
Xtx Topco LTD
London, X0 |
BUY
|
- |
15.8KNew |
$98.3K - $154K
|
15.8K
$162K
|
|
|
Nov 14, 2025
Q3 2025
|
Engineers Gate Manager LP
New York, NY |
BUY
|
- |
15.1K+ 36.89% |
$94K - $148K
|
56.1K
$575K
|
|
|
Nov 14, 2025
Q3 2025
|
Creative Planning
Overland Park, KS |
BUY
|
- |
13.6K+ 26.84% |
$84.4K - $132K
|
64.1K
$657K
|
|
|
Nov 03, 2025
Q3 2025
|
Great Lakes Advisors, LLC
Chicago, IL |
BUY
|
- |
13.3KNew |
$82.6K - $130K
|
13.3K
$136K
|
|
|
Oct 30, 2025
Q3 2025
|
Strs Ohio
|
BUY
|
- |
12.4K+ 75.61% |
$77.1K - $121K
|
28.8K
$295K
|
|