PROTHENA CORP PUBLIC LTD CO — Director's Dealing 2021

Oct 1, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PROTHENA CORP PUBLIC LTD CO (PRTA)
CIK: 0001559053
Period of Report: 2021-10-01

Reporting Person: Selkoe Dennis J. (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-10-01	Ordinary Shares, par value $0.01 per share	M	5000	$9.23	Acquired	7845	Direct
2021-10-01	Ordinary Shares, par value $0.01 per share	S	1757	$66.3542	Disposed	6088	Direct
2021-10-01	Ordinary Shares, par value $0.01 per share	S	1300	$67.9637	Disposed	4788	Direct
2021-10-01	Ordinary Shares, par value $0.01 per share	S	1237	$68.7449	Disposed	3551	Direct
2021-10-01	Ordinary Shares, par value $0.01 per share	S	706	$69.6907	Disposed	2845	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-10-01	Stock Option (Right to Buy)	$9.23	M	5000	Disposed	2029-05-22	Ordinary Shares (5000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Ordinary Shares, par value $0.01 per share	1363	Indirect

Footnotes

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 $66.14 to $67.04, 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 this footnote.

F3: The transaction was executed in multiple trades in prices ranging from $67.33 to $68.26, 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 this footnote.

F4: The transaction was executed in multiple trades in prices ranging from $68.44 to $69.30, 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 this footnote.

F5: The transaction was executed in multiple trades in prices ranging from $69.49 to $70.44, 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 this footnote.