SEC Form 4 · accession 0001209191-15-012628

PROTHENA CORP PUBLIC LTD CO · PRTA

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — See Remarks

Period of report

Feb 10, 2015

Accepted (ET)

Feb 12, 2015 · 4:06 pm EST

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0001559053

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Ordinary Shares, par value $0.01 per share	Feb 10, 2015	M	2,500	$9.75	A	2,500	D
Ordinary Shares, par value $0.01 per share^F2	Feb 10, 2015	S	2,500	$21.5265	D	0	D

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Stock Option (right to buy)^F3	$9.75	Feb 10, 2015	M	2,500	D	—	Jun 2, 2023	Ordinary Shares	2,500	27,000	D

F1The sale reported in the Form 4 was effected pursuant to a Rule 10b5 1 trading plan adopted by the Reporting Person on February 28, 2014.
F2The transaction was executed in multiple trades in prices ranging from $21.07 to $21.69, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a stockholder of the Issuer, information regarding the number of shares and prices at which the transaction was effected.
F3The shares subject to the option will vest and become exercisable as to 25% of the total number of shares subject to the option on May 20, 2014 and 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 or service relationship with the Issuer on each such vesting date.

Controller, Chief Accounting Officer and Head of Accounting