Michael J. Malecek - Chief Legal Officer at PROTHENA CORP PUBLIC LTD CO

Issuer-level insider activity

Role: Chief Legal Officer
Issuer ticker: PRTA on Nasdaq
Entity type: Individual
Source filing history: Open source filing history

No buys or sells have been reported by Michael J. Malecek since 12 Aug 2025

Reported holdings for Michael J. Malecek in PROTHENA CORP PUBLIC LTD CO

Form 4 holding Chief Legal Officer

PROTHENA CORP PUBLIC LTD CO

Security class: Ordinary Shares, par value $0.01 per share
Shares / value: 80,000
Estimated value: $485,600
Report date: 28 Jul 2025
Price: $6.07
Ownership: Direct

Form 4 holding Chief Legal Officer

PROTHENA CORP PUBLIC LTD CO

Security class: Stock Option (Right to Buy)
Shares / value: 190,000
Estimated value
Report date: 03 Mar 2026
Price
Ownership: Direct
Underlying class: Ordinary Shares
Underlying amount

Transaction history for Michael J. Malecek in PROTHENA CORP PUBLIC LTD CO

Sym	Class	Transaction	%	SEC-reported value	SEC-reported price	Shares	Shares after	Date	Ownership

^* marks a reported price that did not pass the local price check.

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. to update or revoke optional consent for future visits. For more information, see our Privacy Policy .