Prothena CORP Public LTD CO Form 4 insider transactions

Insider transactions: buys and sells by directors, officers and ten percent owners, filed within two business days of the trade.

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William P Scully, a 10% owner of Prothena Corp Public Ltd Co, reported a transaction in 251,553 shares of common stock on August 10, 2026.
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William P Scully, a 10% owner of Prothena Corp Public Ltd Co, purchased 37,500 shares of common stock on August 7, 2026 for $8.62 per share.
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Wagner M. Zago, Chief Scientific Officer of Prothena Corp Public Ltd Co, reported multiple transactions in common stock on July 28, 2026.
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Karin L Walker, Chief Accounting Officer of Prothena Corp Public Ltd Co, reported multiple transactions in common stock on July 28, 2026.
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Chad J. Swanson, Chief Development Officer of Prothena Corp Public Ltd Co, reported multiple transactions in common stock on July 28, 2026.
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Brandon S. Smith, Chief Operating Officer of Prothena Corp Public Ltd Co, reported multiple transactions in common stock on July 28, 2026.
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Tran Nguyen, Chief Strategy Officer and CFO of Prothena Corp Public Ltd Co, reported multiple transactions in common stock on July 28, 2026.
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Gene G. Kinney, President and CEO and a Director of Prothena Corp Public Ltd Co, reported multiple transactions in common stock on July 28, 2026.
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Anne Evans Kingston, Chief Strategy Officer of Prothena Corp Public Ltd Co, sold 7,662 shares of common stock on July 28, 2026 for $8.47 per share.
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Michael John Isaacs, General Counsel & Company Sec. of Prothena Corp Public Ltd Co, sold 8,386 shares of common stock on July 28, 2026 for $8.47 per share.
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William P. Scully, a Director at Prothena Corp, has acquired 20,000 ordinary shares in a series of transactions.
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Reporting person William P. Scully gifted 325,000 ordinary shares of Prothena Corp, reducing his direct holdings.
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10% owner William P. Scully acquired 125,000 shares of Prothena Corp at a weighted average price of $8.1698.
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10% owner William P. Scully acquired 50,000 shares of Prothena Corp at a weighted average price of $9.3059.
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Director William P. Scully of Prothena Corp Public Ltd Co acquired 50,000 ordinary shares in a transaction on June 2, 2026.
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Director William P. Scully acquired 100,000 ordinary shares of Prothena Corp Public Ltd Co for approximately $9.81 per share.
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Director Daniel G. Welch was granted 27,000 stock options in Prothena Corporation as part of standard equity compensation.
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Director Dennis J. Selkoe was granted 27,000 stock options in Prothena Corporation as part of standard director compensation.
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Director Lars Ekman was granted 27,000 stock options in Prothena Corporation as part of standard equity compensation.
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Director William H. Dunn Jr. was granted 27,000 stock options in Prothena Corporation as part of standard equity compensation.
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Prothena Corporation director Shane Cooke was granted 27,000 stock options as part of standard equity compensation.
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Director Richard T. Collier was granted 27,000 stock options in Prothena Corporation as part of standard equity compensation.
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Anne Evans Kingston, Chief Strategy Officer at Protana Corp., was granted 100,000 stock options with an exercise price of $10.50, vesting over four years.
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Prothena's Chief Scientific Officer, Wagner M. Zago, was granted 190,000 stock options with an exercise price of $9.36, vesting over four years.
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Prothena's Chief Accounting Officer, Karin L. Walker, reported the acquisition of 150,000 stock options with an exercise price of $9.36.
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Prothena's Chief Development Officer, Chad J. Swanson, was granted 190,000 stock options with an exercise price of $9.36, vesting over four years.
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Prothena's Chief Operating Officer, Brandon S. Smith, was granted 190,000 stock options with an exercise price of $9.36, vesting over four years.
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Prothena Corp Public Ltd Co's Chief Strategy Officer and CFO, Tran Nguyen, was granted 230,000 stock options with a vesting schedule tied to continued employment.
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Prothena Corp Public Ltd Co's Chief Legal Officer, Michael J. Malecek, was granted 190,000 stock options with an exercise price of $9.36, vesting over four years.
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Prothena's President and CEO, Gene G. Kinney, was granted 520,000 stock options with an exercise price of $9.36, vesting over a four-year period.