Michael J. Malecek - Nov 30, 2022 Form 4 Insider Report for PROTHENA CORP PUBLIC LTD CO (PRTA)

Role: Chief Legal Officer
Signature: /s/ Michael J. Malecek
Stock symbol: PRTA
Transactions as of: Nov 30, 2022
Transactions value $: -$260,026
Form type: 4
Date filed: 12/2/2022, 08:30 PM
Previous filing: Oct 28, 2022
Next filing: Mar 3, 2023

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	$51.4K	+5K		$10.27^*	5K	Nov 30, 2022	Direct
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$8.51K	-142	-2.84%	$59.92	4.86K	Nov 30, 2022	Direct	F1, F2
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$103K	-1.7K	-34.91%	$60.96	3.16K	Nov 30, 2022	Direct	F1, F3
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$101K	-1.63K	-51.39%	$62.06	1.54K	Nov 30, 2022	Direct	F1, F4
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$28.7K	-456	-29.67%	$62.85	1.08K	Nov 30, 2022	Direct	F1, F5
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$31.7K	-494	-45.7%	$64.13	587	Nov 30, 2022	Direct	F1, F6
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$26.7K	-411	-70.02%	$64.96	176	Nov 30, 2022	Direct	F1, F7
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$11.6K	-176	-100%	$65.87	0	Nov 30, 2022	Direct	F1, F8

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	-5K	-3.45%	$0.00	140K	Nov 30, 2022	Ordinary Shares	5K	$10.27	Direct	F9

* 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 transaction was executed in multiple trades in prices ranging from $59.32 to $60.01, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The reporting person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in footnotes 2 through 8 of this Form 4.
F3	The transaction was executed in multiple trades in prices ranging from $60.565 to $61.50, inclusive.
F4	The transaction was executed in multiple trades in prices ranging from $61.57 to $62.56, inclusive.
F5	The transaction was executed in multiple trades in prices ranging from $62.575 to $63.295, inclusive.
F6	The transaction was executed in multiple trades in prices ranging from $63.82 to $64.815, inclusive.
F7	The transaction was executed in multiple trades in prices ranging from $64.82 to $65.725, inclusive.
F8	The transaction was executed in multiple trades in prices ranging from $65.82 to $65.94, inclusive.
F9	The shares subject to the option vested and became exercisable as to 25% of the total number of shares subject to the option on July 1, 2020, and vest and become exercisable 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.