PRTA

Prothena Corp Public Ltd Co

Company with tickers: PRTA

CIK

1559053

CUSIP

G72800108

Shares Outstanding

52,353,237

13F Activity (30d)

104 filings 100 filers

Trades by corporate insiders — officers, directors and holders of more than 10% of the shares — disclosed to the SEC on Forms 3, 4 and 5. Form 4 must be filed within two business days of the trade.

Date	Insider	Role	Type	Shares	Price	Value	After
2026-06-04	SCULLY WILLIAM P	10% Owner	Other	52,000	—	—	52,000
2026-06-04	SCULLY WILLIAM P	10% Owner	Other	80,000	—	—	80,000
2026-06-04	SCULLY WILLIAM P	10% Owner	Buy	50,000	$9.31	$465,295	936,000
2026-06-02	SCULLY WILLIAM P	10% Owner	Other	52,000	—	—	52,000
2026-06-02	SCULLY WILLIAM P	10% Owner	Buy	50,000	$9.43	$471,300	886,000
2026-06-02	SCULLY WILLIAM P	10% Owner	Other	80,000	—	—	80,000
2026-05-22	SCULLY WILLIAM P	10% Owner	Other	52,000	—	—	52,000
2026-05-22	SCULLY WILLIAM P	10% Owner	Other	80,000	—	—	80,000
2026-05-22	SCULLY WILLIAM P	10% Owner	Buy	100,000	$9.81	$981,300	836,000
2026-05-15	Cooke Shane	Director	Award	27,000	—	—	27,000
2026-05-15	Selkoe Dennis J.	Director	Award	27,000	—	—	27,000
2026-05-15	Dunn William H. Jr.	Director	Award	27,000	—	—	27,000
2026-05-15	WELCH DANIEL G	Director	Award	27,000	—	—	27,000
2026-05-15	COLLIER RICHARD T	Director	Award	27,000	—	—	27,000
2026-05-15	Ekman Lars	Director	Award	27,000	—	—	27,000
2026-05-07	SCULLY WILLIAM P	10% Owner	Other	80,000	—	—	80,000
2026-05-07	SCULLY WILLIAM P	10% Owner	Other	52,000	—	—	52,000
2026-05-07	SCULLY WILLIAM P	10% Owner	Other	736,000	—	—	736,000
2026-04-10	Kingston Anne Evans	Chief Strategy Officer	Other	0	—	—	0
2026-04-10	Kingston Anne Evans	Chief Strategy Officer	Other	66,942	—	—	66,942
2026-04-10	Kingston Anne Evans	Chief Strategy Officer	Other	0	—	—	0
2026-04-10	Kingston Anne Evans	Chief Strategy Officer	Award	100,000	—	—	100,000
2026-04-10	Kingston Anne Evans	Chief Strategy Officer	Other	0	—	—	0
2026-03-03	Kinney Gene G.	Director, President and CEO	Award	520,000	—	—	520,000
2026-03-03	Zago Wagner M.	Chief Scientific Officer	Award	190,000	—	—	190,000
2026-03-03	Malecek Michael J	Chief Legal Officer	Award	190,000	—	—	190,000
2026-03-03	Nguyen Tran	Chief Strategy Officer and CFO	Award	230,000	—	—	230,000
2026-03-03	Smith Brandon S.	Chief Operating Officer	Award	190,000	—	—	190,000
2026-03-03	Swanson Chad J.	Chief Development Officer	Award	190,000	—	—	190,000
2026-03-03	Walker Karin L	Director	Award	150,000	—	—	150,000
2025-07-28	Nguyen Tran	Chief Strategy Officer and CFO	Award	95,000	—	—	97,205
2025-07-28	Zago Wagner M.	Chief Scientific Officer	Award	85,000	—	—	85,000
2025-07-28	Swanson Chad J.	Chief Development Officer	Award	85,000	—	—	85,000
2025-07-28	Walker Karin L	Director	Award	25,000	—	—	25,000
2025-07-28	Malecek Michael J	Chief Legal Officer	Award	80,000	—	—	80,000
2025-07-28	Kinney Gene G.	Director, President and CEO	Award	140,000	—	—	152,793
2025-07-28	Smith Brandon S.	Chief Operating Officer	Award	130,000	—	—	130,000
2025-05-14	Dunn William H. Jr.	Director	Award	20,183	—	—	20,183
2025-05-14	Cooke Shane	Director	Award	20,183	—	—	20,183
2025-05-14	Kim Helen Susan	Director, 10% Owner	Award	20,183	—	—	20,183
2025-05-14	Selkoe Dennis J.	Director	Award	20,183	—	—	20,183
2025-05-14	Cobb Paula K	Director	Award	20,183	—	—	20,183
2025-05-14	WELCH DANIEL G	Director	Award	20,183	—	—	20,183
2025-05-14	COLLIER RICHARD T	Director	Award	20,183	—	—	20,183
2025-05-14	Ekman Lars	Director	Award	20,183	—	—	20,183
2025-05-06	EcoR1 Capital, LLC	Director, 10% Owner	Sell	1,984,053	$7.64	$15,164,712	5,304,596
2025-05-05	EcoR1 Capital, LLC	Director, 10% Owner	Sell	977,693	$8.11	$7,930,166	7,288,649
2025-05-02	EcoR1 Capital, LLC	Director, 10% Owner	Sell	3,317,938	$8.36	$27,744,929	8,266,342
2025-03-05	Karp Carol D.	Chief Regulatory Officer	Award	107,500	—	—	107,500
2025-03-05	Zago Wagner M.	Chief Scientific Officer	Award	107,500	—	—	107,500

Showing 1–50 of 770 transactions