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PRTA insider trading

PROTHENA CORP PUBLIC LTD CO — open-market insider buys and $1M+ sells from SEC Forms 3, 4 and 5.
Insider buys · 24 mo
8
Bought · 24 mo
$6.6M
Buys · last 90 days
5 · $2.4M
Most recent buy
2026-08-21

Recent insider filings

FiledInsiderTypeSharesPriceValue
2026-08-21SCULLY WILLIAM P
10% owner
Bought50,000$8.79$439k
2026-08-10SCULLY WILLIAM P
10% owner
Bought37,500$8.62$323k
2026-06-18SCULLY WILLIAM P
10% owner
Bought20,000$7.90$158k
2026-06-12SCULLY WILLIAM P
10% owner
Bought125,000$8.17$1.0M
2026-06-05SCULLY WILLIAM P
10% owner
Bought50,000$9.31$466k
2026-06-03SCULLY WILLIAM P
10% owner
Bought50,000$9.43$472k
2026-05-26SCULLY WILLIAM P
10% owner
Bought100,000$9.81$981k
2025-05-06EcoR1 Capital, LLC
10% owner
Sold6,279,684$8.09$50.8M
2025-05-02SCULLY WILLIAM P
10% owner
Bought207,436$13.26$2.8M

Most active insider buyers

InsiderRoleBuysTotal bought
SCULLY WILLIAM P10% owner8$6.6M

See PRTA on the chart

Every insider buy and sell for PRTA plotted on the price, the full two-year history, cluster scores and daily updates — in the members area, $29/month. A free quarterly sample of the whole dataset needs no account.

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Data from the SEC EDGAR ownership filings, refreshed daily. Only open-market purchases (transaction code P) and sales of $1M or more are shown; grants, option exercises and tax withholding are excluded because they run on schedules set years earlier. Not investment advice.