Sanjiv Patel - May 19, 2021 Form 4 Insider Report for PROTHENA CORP PUBLIC LTD CO (PRTA)

Role: Director
Signature: /s/ Michael J. Malecek, as attorney-in-fact for Sanjiv Patel
Stock symbol: PRTA
Transactions as of: May 19, 2021
Transactions value $: $0
Form type: 4
Date filed: 5/21/2021, 05:05 PM
Next filing: Jul 12, 2021

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	+30K		$0.00	30K	May 19, 2021	Ordinary Shares	30K	$23.97	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 33 1/3% of the total number of shares subject to the option on the first anniversary of the grant date, 33 1/3% on the second anniversary of the grant date, and the remaining 33 1/3% on the earlier of the third anniversary of the grant date or the day of the annual general meeting in 2024 of the Issuer's shareholders, assuming continuous services as a director until each such vesting date.

Content

The shares subject to the option will vest and become exercisable as to 33 1/3% of the total number of shares subject to the option on the first anniversary of the grant date, 33 1/3% on the second anniversary of the grant date, and the remaining 33 1/3% on the earlier of the third anniversary of the grant date or the day of the annual general meeting in 2024 of the Issuer's shareholders, assuming continuous services as a director until each such vesting date.