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William P Scully, 10% owner at Prothena Corp Public, bought PRTA on Oct 13, 2026

Data as of Oct 16

▲ BUY$835K100,000 shares at $8.35William P Scully 10% ownerPRTA Prothena Corp Public Ltd Co
Watch PRTA
Traded
Oct 13, 2026
Disclosed
Oct 15, 2026
Filed
2 days after the trade

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

William P Scully, 10% owner at Prothena Corp Public, bought PRTA on Oct 13, 2026TRADEDDISCLOSED
PRTASimilar stocks (XLV — its sector index fund), rebased to PRTA's price on the disclosure day
PRTA since disclosure
−1.8%
Similar stocks (XLV) since disclosure
−0.3%
XLV — its sector index fund

Change in closing price from Oct 15, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.

Our take

None of our tested rules fired on this trade.

Other trades in the same filing

  1. ▲ BUYWilliam P Scully 10% ownerPRTA Prothena Corp Public Ltd Co$84.6Kdisclosed Oct 15 · filed 1 day after the trade

See every trade on PRTA →