Prothena stock price

NASDAQ:PRTA · Nasdaq · Healthcare · sector #16
$8.03-5.53%Oct 21 close · provisional
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Prothena's chart data is dated 2026-10-21. There is no active technical signal. The display ticker is PRTA.

Prothena last closed at $8.03 (-5.53%) on 2026-10-21. Listed on Nasdaq. Trailing 12 months PER is -10.1×. Its overall grade ranks 129 of 726 stocks in Healthcare.

About this company

Prothena last closed at $8.03 (-5.53%) on 2026-10-21. Listed on Nasdaq.

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Reported results

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Position in sector

Healthcare · Overall A · 129/726

Valuation grade A-

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Related stocks

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About Prothena
What technical signals does Prothena (PRTA) have?
Prothena current technical signals: no active technical signal.
Is Prothena a cup-and-handle pattern?
No. Prothena has no valid Cup signal right now.
What published figures are available for Prothena?
Market cap: $432.25M. Trailing 12 months PER: -10.1×. Latest quarter PBR: 1.54×. Dividend yield: 0.00%.

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2026-10-21 dataset

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