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Home/Companies/Prothena Corporation plc

Prothena Corporation plc

52 insider trades tracked

PRTA
Insider trades
52
Bought (open market)
$4.1M
Sold (open market)
$2.9M
Unique insiders
16

12-month activity

Monthly insider buy vs sell totals for Prothena Corporation plc.

BuysSellsFilings with no price (gifts, grants)
Show data table
MonthBuysSellsFilings
October 2025$0$00
November 2025$0$00
December 2025$0$00
January 2026$0$00
February 2026$0$00
March 2026$0$07
April 2026$0$01
May 2026$981K$07
June 2026$2.1M$05
July 2026$0$136K17
August 2026$763K$06
September 2026$256K$01

Recent insider trades

Most recent Form 4 filings for Prothena Corporation plc.

  • SCULLY WILLIAM Pbought27,000 shares ofPRTAat $9.472$256KSep 2 · filed Sep 3Details
  • SCULLY WILLIAM Pbought50,000 shares ofPRTAat $8.789$439KAug 20 · filed Aug 21Details
  • SCULLY WILLIAM Pgifted627,553 shares ofPRTAat $0Aug 18Details

Insiders at this company

Executives and directors who have filed Form 4s.

  • SCULLY WILLIAM P13 trades
  • Swanson Chad J.6 trades
  • Nguyen Tran4 trades
  • Kinney Gene G.4 trades
  • Smith Brandon S.4 trades
  • Walker Karin L4 trades
  • Zago Wagner M.4 trades
  • Kingston Anne Evans3 trades

Explore insider screeners

Latest CEO & CFO PurchasesLatest CEO & CFO SalesDirector PurchasesOfficer PurchasesTop Purchases This WeekTop Sales This WeekTop Officer Buys (Month)10% Owner Filings10b5-1 Planned TradesDiscretionary TradesBuy/Sell RatiosPolitician-Insider Overlap
  • SCULLY WILLIAM Pgifted336,000 shares ofPRTAat $0Aug 17 · filed Aug 18Details
  • SCULLY WILLIAM Pgifted251,553 shares ofPRTAat $0Aug 10 · filed Aug 11Details
  • SCULLY WILLIAM Pbought3,500 shares ofPRTAat $8.619$30KAug 7 · filed Aug 10Details
  • SCULLY WILLIAM Pbought34,000 shares ofPRTAat $8.619$293KAug 7 · filed Aug 10Details
  • Isaacs Michael Johnsold8,386 shares ofPRTAat $8.473$71KJul 29 · filed Jul 30Details
  • Kingston Anne Evanssold7,662 shares ofPRTAat $8.473$65KJul 29 · filed Jul 30Details
  • Zago Wagner M.traded51,000 shares ofPRTAat $8.56$437KJul 28 · filed Jul 30Details
  • Zago Wagner M.exercised51,000 shares ofPRTAJul 28 · filed Jul 30Details
  • Walker Karin Ltraded15,000 shares ofPRTAat $8.56$128KJul 28 · filed Jul 30Details
  • Walker Karin Lexercised15,000 shares ofPRTAJul 28 · filed Jul 30Details
  • Isaacs Michael Johntax-withheld4,694 shares ofPRTAat $8.56$40KJul 28 · filed Jul 30Details
  • Kingston Anne Evanstax-withheld3,498 shares ofPRTAat $8.56$30KJul 28 · filed Jul 30Details
  • Nguyen Trantraded57,000 shares ofPRTAat $8.56$488KJul 28 · filed Jul 30Details
  • Nguyen Tranexercised57,000 shares ofPRTAJul 28 · filed Jul 30Details
  • Kinney Gene G.traded84,000 shares ofPRTAat $8.56$719KJul 28 · filed Jul 30Details
  • Kinney Gene G.exercised84,000 shares ofPRTAJul 28 · filed Jul 30Details
  • Smith Brandon S.traded78,000 shares ofPRTAat $8.56$668KJul 28 · filed Jul 30Details
  • Smith Brandon S.exercised78,000 shares ofPRTAJul 28 · filed Jul 30Details
  • Swanson Chad J.tax-withheld3,467 shares ofPRTAat $8.56$30KJul 28 · filed Jul 30Details
  • Swanson Chad J.traded40,800 shares ofPRTAat $8.56$349KJul 28 · filed Jul 30Details
  • Swanson Chad J.exercised51,000 shares ofPRTAJul 28 · filed Jul 30Details
  • SCULLY WILLIAM Pbought20,000 shares ofPRTAat $7.9$158KJun 16 · filed Jun 18Details
  • SCULLY WILLIAM Pgifted325,000 shares ofPRTAat $0Jun 15 · filed Jun 16Details
  • SCULLY WILLIAM Pbought125,000 shares ofPRTAat $8.17$1MJun 11 · filed Jun 12Details
  • SCULLY WILLIAM Pbought50,000 shares ofPRTAat $9.306$465KJun 4 · filed Jun 5Details
  • SCULLY WILLIAM Pbought50,000 shares ofPRTAat $9.426$471KJun 2 · filed Jun 3Details
  • SCULLY WILLIAM Pbought100,000 shares ofPRTAat $9.813$981KMay 22 · filed May 26Details
  • View all trades for PRTA →
    Malecek Michael J
    2 trades
  • Isaacs Michael John2 trades
  • COLLIER RICHARD T1 trades
  • WELCH DANIEL G1 trades
  • Ekman Lars1 trades
  • Cooke Shane1 trades
  • Dunn William H. Jr.1 trades
  • Selkoe Dennis J.1 trades