Arthur W. Homan, Chief Legal Officer at Prothena Corp plc (PRTA), sold 3,125 shares at $59.28 ($185K) on 2017-03-01, disclosed to the SEC on 2017-03-03.
Open-market sale of $185k PRTA by Chief Legal Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
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| PRTA | BUY | 2026-10-09 | $1.8M | — | Filing → |
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| PRTA | BUY | 2026-09-30 | $1.4M | — | Filing → |