NASDAQ:PRTA | Historical Stock Price | PROTHENA CORP PUBLIC LTD CO

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2012-12-18 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$4.47$7.97$14.21$25.36$45.25$80.732012-12-212026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2012

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2012-12-31$7.33$7.33283,300
2012-12-28$6.87$6.87712,700
2012-12-27$6.90$6.90159,200
2012-12-26$6.80$6.80256,400
2012-12-24$6.80$6.80130,700
2012-12-21$7.20$7.2068,600
2012-12-20$0.000
2012-12-19$0.000
2012-12-18$0.000