LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
PRTACIK 0001559053

PROTHENA CORP PUBLIC LTD CO

58 transactions by 16 insiders, from March 3, 2026 to October 14, 2026.

Transactions
5816 insiders
Bought · P
$10.9Mopen market
Sold · S
$136Kopen market
Net
+$10.7Mnet buying

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Chad J. SwansonChief5———
Tran NguyenCFO4———
Wagner M. ZagoChief4———
Karin L. WalkerCAO4———
Brandon S. SmithCOO4———
Gene G. KinneyCEO4———
Anne Evans KingstonChief32/3—$65K
Michael John IsaacsGC22/2—$71K
Shane CookeDir1———
Michael J. MalecekGC1———
Lars EkmanDir1———
William H. Dunn Jr.Dir1———
Daniel G. WelchDir1———
Dennis J. SelkoeDir1———
Richard T. CollierDir1———

Large holders and funds

Holders above 10%, often funds. They file the same form, but they trade for portfolio reasons, not because of what they know.

InsiderTradesPlannedBoughtSold
William P. Scully10%21—$10.9M—

All transactions

58 in total, newest filings first.

InsiderDateCodeSharesPriceValue
William P. Scully10%Oct 14P10,000$8.46$85K
William P. Scully10%Oct 13P100,000$8.35$835K
William P. Scully10%Oct 8P90,000$8.57$771K
William P. Scully10%Oct 7P125,000$8.40$1.1M
William P. Scully10%Oct 2P100,000$8.57$857K
William P. Scully10%Sep 29P162,000$8.68$1.4M
William P. Scully10%Sep 28P103,500$8.60$890K
William P. Scully10%Sep 18P100,000$8.43$843K
William P. Scully10%Sep 2P27,000$9.47$256K
William P. Scully10%Aug 20P50,000$8.79$439K
William P. Scully10%Aug 18G627,553$0.00—
William P. Scully10%Aug 17G336,000$0.00—
William P. Scully10%Aug 10G251,553$0.00—
William P. Scully10%Aug 7P3,500$8.62$30K
William P. Scully10%Aug 7P34,000$8.62$293K
Wagner M. ZagoChiefDERIVJul 28M51,000$0.00—?
Wagner M. ZagoChiefJul 28D51,000$8.56$437K
Wagner M. ZagoChiefJul 28M51,000——
Karin L. WalkerCAODERIVJul 28M15,000$0.00—?
Karin L. WalkerCAOJul 28D15,000$8.56$128K
Karin L. WalkerCAOJul 28M15,000——
Chad J. SwansonChiefDERIVJul 28M51,000$0.00—?
Chad J. SwansonChiefJul 28F3,467$8.56$30K
Chad J. SwansonChiefJul 28D40,800$8.56$349K
Chad J. SwansonChiefJul 28M51,000——
Brandon S. SmithCOODERIVJul 28M78,000$0.00—?
Brandon S. SmithCOOJul 28D78,000$8.56$668K
Brandon S. SmithCOOJul 28M78,000——
Tran NguyenCFODERIVJul 28M57,000$0.00—?
Tran NguyenCFOJul 28D57,000$8.56$488K
Tran NguyenCFOJul 28M57,000——
Gene G. KinneyCEODERIVJul 28M84,000$0.00—?
Gene G. KinneyCEOJul 28D84,000$8.56$719K
Gene G. KinneyCEOJul 28M84,000——
Anne Evans KingstonChiefJul 29SPLAN7,662$8.47$65K
Anne Evans KingstonChiefJul 28FPLAN3,498$8.56$30K
Michael John IsaacsGCJul 29SPLAN8,386$8.47$71K
Michael John IsaacsGCJul 28FPLAN4,694$8.56$40K
William P. Scully10%Jun 16P20,000$7.90$158K
William P. Scully10%Jun 15G325,000$0.00—
William P. Scully10%Jun 11P125,000$8.17$1.0M
William P. Scully10%Jun 4P50,000$9.31$465K
William P. Scully10%Jun 2P50,000$9.43$471K
William P. Scully10%May 22P100,000$9.81$981K
Daniel G. WelchDirDERIVMay 15A27,000$0.00—?
Dennis J. SelkoeDirDERIVMay 15A27,000$0.00—?
Lars EkmanDirDERIVMay 15A27,000$0.00—?
William H. Dunn Jr.DirDERIVMay 15A27,000$0.00—?
Shane CookeDirDERIVMay 15A27,000$0.00—?
Richard T. CollierDirDERIVMay 15A27,000$0.00—?
Anne Evans KingstonChiefDERIVApr 10A100,000$0.00—?
Wagner M. ZagoChiefDERIVMar 3A190,000$0.00—?
Karin L. WalkerCAODERIVMar 3A150,000$0.00—?
Chad J. SwansonChiefDERIVMar 3A190,000$0.00—?
Brandon S. SmithCOODERIVMar 3A190,000$0.00—?
Tran NguyenCFODERIVMar 3A230,000$0.00—?
Michael J. MalecekGCDERIVMar 3A190,000$0.00—?
Gene G. KinneyCEODERIVMar 3A520,000$0.00—?