Brandon S. Smith - Sep 29, 2021 Form 4 Insider Report for PROTHENA CORP PUBLIC LTD CO (PRTA)

Role: Chief Operating Officer
Signature: /s/ Michael J. Malecek as Attorney in Fact for Brandon S. Smith
Stock symbol: PRTA
Transactions as of: Sep 29, 2021
Transactions value $: $0
Form type: 4
Date filed: 10/1/2021, 04:31 PM
Next filing: Feb 25, 2022

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	PRTA	Stock Option (Right to Buy)	Award	$0	+25K		$0.00	25K	Sep 29, 2021	Ordinary Shares	25K	$70.81	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The shares subject to the option will vest and become exercisable as to 25% of the total number of shares subject to the option on September 29, 2022 and with respect to 1/48th of the total number of shares subject to the option in successive, equal monthly installments on each monthly anniversary thereafter, subject to the Reporting Person's continued employment with the Issuer on each such vesting date.

Content

The shares subject to the option will vest and become exercisable as to 25% of the total number of shares subject to the option on September 29, 2022 and with respect to 1/48th of the total number of shares subject to the option in successive, equal monthly installments on each monthly anniversary thereafter, subject to the Reporting Person's continued employment with the Issuer on each such vesting date.