Richard T. Collier - Sep 28, 2022 Form 4 Insider Report for PROTHENA CORP PUBLIC LTD CO (PRTA)

Role: Director
Signature: /s/ Michael Malecek, as Attorney in Fact for Richard T. Collier
Stock symbol: PRTA
Transactions as of: Sep 28, 2022
Transactions value $: -$1,042,000
Form type: 4
Date filed: 9/30/2022, 09:31 PM
Previous filing: May 27, 2022
Next filing: Oct 7, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Options Exercise	$160K	+25K	+2050.86%	$6.41^*	26.2K	Sep 28, 2022	Direct
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$1.2M	-25K	-95.35%	$48.09	1.22K	Sep 28, 2022	Direct	F1

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)	Options Exercise	$0	-25K	-55.56%	$0.00	20K	Sep 28, 2022	Ordinary Shares	25K	$6.41	Direct	F2

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

Explanation of Responses:

Id	Content
F1	The transactions reported in the Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
F2	The option was granted on January 29, 2013, and all shares subject to the option were fully vested and exercisable January 29, 2014. The option will expire in approximately four months and be forfeited to the extent it is not exercised on or prior to January 29, 2023.