William P. Scully

Holdings History for PROTHENA CORP PUBLIC LTD CO - Ordinary Shares, par value $0.01 per share (PRTA)

Symbol: PRTA on Nasdaq
Investment type: Equity / Ordinary Shares, par value $0.01 per share
Latest Disclosed Ownership: 5.28M shares
Security Ownership: 9.8%

SCULLY WILLIAM P ownership in PROTHENA CORP PUBLIC LTD CO Ordinary Shares, par value $0.01 per share (PRTA)

2025-11-12 - SCULLY WILLIAM P has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 5.28M shares of PROTHENA CORP PUBLIC LTD CO Ordinary Shares, par value $0.01 per share (PRTA). This represents 9.8% percent ownership of the company. In their previous filing dated 2025-08-13, SCULLY WILLIAM P had reported owning 5.35M shares, indicating a decrease of -1.31% percent.

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filed at
SCULLY WILLIAM P	9.8%	-1%	$51.6M	5.28M	-70,000	-1.31%	$9.76	13G/A	9/30/2025	12 Nov 2025 15:47:28
SCULLY WILLIAM P	9.9%	-5%	$44.1M	5.35M	-255,902	-4.56%	$8.24	13G/A	6/30/2025	13 Aug 2025 16:14:07
SCULLY WILLIAM P	10.4%	+1%	$57.3M	5.61M	+49,458	+0.89%	$10.22	13G/A	3/31/2025	14 May 2025 10:34:49
SCULLY WILLIAM P	10.3%		$56.8M	5.56M			$10.22	13G/A	12/31/2024	21 Feb 2025 14:49:19