PRTA

Prothena Corporation plc
$9.38-0.21 (-2.19%)HealthcareNASDAQ

Institutional Holders

50

as of Q4 2025

Total Shares Held

InfinityB

Total Value

$3.9000351183200022e+202T

% of Float

Infinity%

Price History

$4.58$8.94$13.30$17.66$22.02Sep 24Jun 25Mar 26

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1FMR LLC4,131,932$39.0M0.00%Share
2Rubric Capital Management LP3,677,331$35.1M0.42%Share
3FMR LLC3,419,286$32.0M0.00%Share
4STATE STREET CORP2,267,802$21.0M0.00%Share
5VANGUARD GROUP INC1,881,735$18.0M0.00%Share
6BlackRock, Inc.1,882,205$17.0M0.00%Share
7D. E. Shaw & Co., Inc.1,681,369$16.0M0.01%Share
8ARMISTICE CAPITAL, LLC1,500,000$14.3M0.17%Share
9ADAR1 Capital Management, LLC1,457,764$13.9M1.01%Share
10BlackRock, Inc.1,443,752$13.0M0.00%Share
11ACADIAN ASSET MANAGEMENT LLC1,437,358$13.0M0.02%Share
12Palo Alto Investors LP1,320,510$12.6M1.76%Share
13JACOBS LEVY EQUITY MANAGEMENT, INC978,011$9.0M0.03%Share
14FEDERATED HERMES, INC.933,582$8.0M0.01%Share
15GEODE CAPITAL MANAGEMENT, LLC919,039$8.0M0.00%Share
16Point72 Asset Management, L.P.860,018$8.0M0.01%Share
17GOLDMAN SACHS GROUP INC840,229$8.0M0.00%Share
18Nuveen, LLC755,382$7.0M0.00%Share
19DIMENSIONAL FUND ADVISORS LP744,446$7.0M0.00%Share
20TWO SIGMA INVESTMENTS, LP670,138$6.0M0.01%Share
21Rangeley Capital, LLC524,600$5.0M4.16%Share
22MORGAN STANLEY544,234$5.0M0.00%Share
23Mariner, LLC577,938$5.0M0.01%Share
24CITADEL ADVISORS LLC551,314$5.0M0.00%Share
25Birchview Capital, LP441,019$4.2M2.47%Share
26UBS Group AG425,304$4.1M0.00%Share
27TWO SIGMA ADVISERS, LP427,400$4.0M0.01%Share
28RENAISSANCE TECHNOLOGIES LLC435,515$4.0M0.01%Share
29BNP PARIBAS FINANCIAL MARKETS423,955$4.0M0.00%Share
30MORGAN STANLEY462,687$4.0M0.00%Share
31BANK OF AMERICA CORP /DE/404,861$3.0M0.00%Share
32NORTHERN TRUST CORP353,707$3.0M0.00%Share
33Qube Research & Technologies Ltd407,689$3.0M0.00%Share
34CHARLES SCHWAB INVESTMENT MANAGEMENT INC357,335$3.0M0.00%Share
35CITADEL ADVISORS LLC361,068$3.0M0.00%Share
36MONIMUS CAPITAL MANAGEMENT, LP254,122$2.4M1.60%Share
37VANGUARD GROUP INC240,925$2.3M0.00%Share
38BlackRock, Inc.273,701$2.0M0.00%Share
39ARROWSTREET CAPITAL, LIMITED PARTNERSHIP298,101$2.0M0.00%Share
40Squarepoint Ops LLC218,041$2.0M0.00%Share
41Man Group plc269,513$2.0M0.00%Share
42SUSQUEHANNA INTERNATIONAL GROUP, LLP236,800$2.0M0.00%Call
43SUSQUEHANNA INTERNATIONAL GROUP, LLP312,500$2.0M0.00%Put
44Jump Financial, LLC236,400$2.0M0.02%Share
45JANE STREET GROUP, LLC245,119$2.0M0.00%Share
46DCF Advisers, LLC195,747$1.9M0.50%Share
47Focused Wealth Management, Inc107,479$1.0M0.11%Share
48DIADEMA PARTNERS LP106,539$1.0M0.18%Share
49BlackRock, Inc.157,243$1.0M0.00%Share
50JPMORGAN CHASE & CO137,427$1.0M0.00%Share