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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1559053	Prothena Corp Public Ltd Co	PRTA	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1376117	Lars Ekman	C/O Prothena Biosciences Inc 331 Oyster Point Boulevard South San Francisco CA 94080		Yes	No	No	Yes

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Ordinary Shares, Par Value $0.01 Per Share	Acquisiton	2023-01-03	15,834	$6.41	16,077	No	4	M	Direct
Ordinary Shares, Par Value $0.01 Per Share	Disposition	2023-01-03	3,411	$54.15	12,666	No	4	S	Direct
Ordinary Shares, Par Value $0.01 Per Share	Disposition	2023-01-03	2,897	$55.35	9,769	No	4	S	Direct
Ordinary Shares, Par Value $0.01 Per Share	Disposition	2023-01-03	6,621	$56.33	3,148	No	4	S	Direct
Ordinary Shares, Par Value $0.01 Per Share	Disposition	2023-01-03	1,303	$56.98	1,845	No	4	S	Direct
Ordinary Shares, Par Value $0.01 Per Share	Disposition	2023-01-03	1,523	$58.67	322	No	4	S	Direct
Ordinary Shares, Par Value $0.01 Per Share	Disposition	2023-01-03	10	$59.46	312	No	4	S	Direct
Ordinary Shares, Par Value $0.01 Per Share	Disposition	2023-01-03	69	$60.85	243	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Ordinary Shares	Stock Option (right to buy)	Disposition	2023-01-03	15,834	$0.00	15,834	$6.41

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0		2023-01-29	No	4	M	Direct

Footnotes

The transactions reported in the Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
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.
The transaction was executed in multiple trades in prices ranging from $54.75 to $55.74, inclusive.
The transaction was executed in multiple trades in prices ranging from $55.76 to $56.755, inclusive.
The transaction was executed in multiple trades in prices ranging from $56.76 to $57.31, inclusive.
The transaction was executed in multiple trades in prices ranging from $58.195 to $58.92, inclusive.
The transaction was executed in multiple trades in prices ranging from $60.77 to $61.00, inclusive.
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.