Prothena Corp Public Ltd Co (PRTA) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

53,830,000Shares Outstanding
47,026,532Shares held by institutions
$478,730,096Value of institutional holdings
87.36%Institutional ownership %
1.51%Shares Changed QoQ
182No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

1,049 Institutional Holders

47,026,532 Total Shares Held
Download Data
Owner Name Date Shares Held Change (QoQ) Change (%) Value (USD)
FMR LLC 31 Dec, 2025 7,551,218 -350,000 -4.43% $72,114,132.00
FMR LLC 31 Dec, 2025 7,551,218 -350,000 -4.43% $72,114,132.00
FMR LLC 31 Dec, 2025 7,551,218 -350,000 -4.43% $72,114,132.00
FMR LLC 31 Dec, 2025 7,551,218 0 0.00% $73,397,839.00
FMR LLC 31 Dec, 2025 7,551,218 -350,000 -4.43% $72,114,132.00
FMR LLC 31 Dec, 2025 7,551,218 -350,000 -4.43% $72,114,132.00
Rubric Capital Management LP 31 Dec, 2025 5,000,000 1,322,669 35.97% $48,600,000.00
BlackRock, Inc. 31 Dec, 2025 4,644,160 536,701 13.07% $45,141,233.00
BlackRock, Inc. 31 Dec, 2025 4,107,459 509,042 14.15% $39,226,235.00
BlackRock, Inc. 31 Dec, 2025 4,107,459 509,042 14.15% $39,226,235.00
BlackRock, Inc. 31 Dec, 2025 4,107,459 509,042 14.15% $39,226,235.00
BlackRock, Inc. 31 Dec, 2025 4,107,459 509,042 14.15% $39,226,235.00
BlackRock, Inc. 31 Dec, 2025 4,107,459 509,042 14.15% $39,226,235.00
Rubric Capital Management LP 31 Dec, 2025 3,677,331 2,136,958 138.73% $35,118,511.00
Rubric Capital Management LP 31 Dec, 2025 3,677,331 2,136,958 138.73% $35,118,511.00
Rubric Capital Management LP 31 Dec, 2025 3,677,331 2,136,958 138.73% $35,118,511.00
Rubric Capital Management LP 31 Dec, 2025 3,677,331 2,136,958 138.73% $35,118,511.00
Rubric Capital Management LP 31 Dec, 2025 3,677,331 2,136,958 138.73% $35,118,511.00
ADAR1 Capital Management, LLC 31 Dec, 2025 2,915,528 1,446,430 98.46% $27,843,292.00
ADAR1 Capital Management, LLC 31 Dec, 2025 2,915,528 1,446,430 98.46% $27,843,292.00