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AFTER HRS · 18:25 ET
Market ClerkRecap
Wed Oct 21 · after hours2 signals today106 insider buys this week · $305.5MCIRO short report next: Oct 31The week ahead

PRTA

PROTHENA CORP PUBLIC LTD CO
NASDAQ · HEALTH CARE · PHARMACEUTICAL PREPARATIONS
8.50
+0.02 +0.24%
USD · Oct 20, 07:41 p.m. ET

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MKT CAP $436.4MP/E —DIV YIELD —FCF YIELD —REV TTM $54.5M +427.3%NET INCOME −$44MNET CASH —52W 7.91 – 11.51NEXT EARNINGS Nov 5 EST.SEC XBRL · TTM TO Invalid Date

Short interest

FINRA · TWICE MONTHLY
Report dateShares shortChange% of shares outAvg daily volumeDays to cover
2026-08-318.5M−49K16.55%342K24.9
2026-08-148.5M+373K16.65%437K19.6
2026-07-318.2M−25K15.92%585K14.0
2026-07-158.2M−173K15.97%500K16.4

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