BlackRock, Inc. - Sep 30, 2025 SCHEDULE 13G/A Report for PROTHENA CORPORATION PUBLIC LIMITED COMPANY Common Stock (PRTA)

Filing Manager: BlackRock, Inc.
Reporting Manager: BlackRock, Inc.
Security: PROTHENA CORPORATION PUBLIC LIMITED COMPANY Common Stock
Symbol: PRTA
Shares outstanding: 54.3M shares
Disclosed Ownership: 3.09M shares
Ownership: 5.7%
Form type: SCHEDULE 13G/A
Date filed: 10/17/2025, 04:07 PM
Date of event: Sep 30, 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
BlackRock, Inc.	5.7%	3.09M	3.02M	0	Spencer Fleming	Managing Director