Dennis J. Selkoe - 01 Oct 2021 Form 4 Insider Report for PROTHENA CORP PUBLIC LTD CO (PRTA)

Role: Director
Signature: /s/ Michael J. Malecek, as attorney-in-fact for Dennis J. Selkoe
Issuer symbol: PRTA
Transactions as of: 01 Oct 2021
Net transactions value: -$293,026
Form type: 4
Filing time: 01 Oct 2021, 21:18:16 UTC
Previous filing: 30 Jul 2021
Next filing: 05 Jan 2022
SEC: View on sec.gov

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	$46,150	+5,000	+176%	$9.23^*	7,845	01 Oct 2021	Direct
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	$116,584	-1,757	-22%	$66.35	6,088	01 Oct 2021	Direct	F1, F2
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	$88,353	-1,300	-21%	$67.96	4,788	01 Oct 2021	Direct	F1, F3
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	$85,037	-1,237	-26%	$68.74	3,551	01 Oct 2021	Direct	F1, F4
transaction	PRTA	Ordinary Shares, par value $0.01 per share	Sale	$49,202	-706	-20%	$69.69	2,845	01 Oct 2021	Direct	F1, F5
holding	PRTA	Ordinary Shares, par value $0.01 per share						1,363	01 Oct 2021	By wife

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	-5,000	-31%	$0.000000	11,000	01 Oct 2021	Ordinary Shares	5,000	$9.23	Direct

* 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 $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.