Lars Ekman - Jan 3, 2023 Form 4 Insider Report for PROTHENA CORP PUBLIC LTD CO (PRTA)

Role: Director, Chair of the Board
Signature: /s/ Michael J. Malecek, as attorney-in-fact for Lars G. Ekman
Stock symbol: PRTA
Transactions as of: Jan 3, 2023
Transactions value $: -$784,911
Form type: 4
Date filed: 1/5/2023, 08:42 PM
Previous filing: Dec 2, 2022
Next filing: May 19, 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	$101K	+15.8K	+6516.05%	$6.41	16.1K	Jan 3, 2023	Direct
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$185K	-3.41K	-21.22%	$54.15	12.7K	Jan 3, 2023	Direct	F1, F2
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$160K	-2.9K	-22.87%	$55.35	9.77K	Jan 3, 2023	Direct	F1, F3
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$373K	-6.62K	-67.78%	$56.33	3.15K	Jan 3, 2023	Direct	F1, F4
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$74.2K	-1.3K	-41.39%	$56.98	1.85K	Jan 3, 2023	Direct	F1, F5
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$89.4K	-1.52K	-82.55%	$58.67	322	Jan 3, 2023	Direct	F1, F6
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$595	-10	-3.11%	$59.46	312	Jan 3, 2023	Direct	F1
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	-$4.2K	-69	-22.12%	$60.85	243	Jan 3, 2023	Direct	F1, F7

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	-15.8K	-100%	$0.00^*	0	Jan 3, 2023	Ordinary Shares	15.8K	$6.41	Direct	F8

* 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 $53.74 to $54.68, 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 7 of this Form 4.
F3	The transaction was executed in multiple trades in prices ranging from $54.75 to $55.74, inclusive.
F4	The transaction was executed in multiple trades in prices ranging from $55.76 to $56.755, inclusive.
F5	The transaction was executed in multiple trades in prices ranging from $56.76 to $57.31, inclusive.
F6	The transaction was executed in multiple trades in prices ranging from $58.195 to $58.92, inclusive.
F7	The transaction was executed in multiple trades in prices ranging from $60.77 to $61.00, inclusive.
F8	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 would have expired in approximately one month and would have been forfeited to the extent it was not exercised on or prior to January 29, 2023.