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 Shares Owned: 5,281,846 shares
Security Ownership %: 9.8%

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

12 Nov 2025 - SCULLY WILLIAM P has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 5,281,846 shares of PROTHENA CORP PUBLIC LTD CO Ordinary Shares, par value $0.01 per share (PRTA). This represents 9.8% ownership of the company. In their previous filing dated 13 Aug 2025, William P. Scully had reported owning 5,351,846 shares, indicating a decrease of +1.3%. .

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filing time
SCULLY WILLIAM P	9.8%	-1%	$51,550,817	5,281,846	-70,000	-1.3%	$9.76	13G/A	30 Sep 2025	12 Nov 2025, 15:47
SCULLY WILLIAM P	9.9%	-5%	$33,823,667	5,351,846	-255,902	-4.6%	$6.32	13G/A	30 Jun 2025	13 Aug 2025, 16:14
SCULLY WILLIAM P	10%	+1%	$54,339,078	5,607,748	+49,458	+0.89%	$9.69	13G/A	31 Mar 2025	14 May 2025, 10:34
SCULLY WILLIAM P	10%		$53,859,830	5,558,290			$9.69	13G/A	31 Dec 2024	21 Feb 2025, 14:49