Ticker archive · $PRTA

$PRTA Filing Signals & Market Reactions

Delayed, SEO-crawlable recaps of AI-scored catalysts for $PRTA — including observed post-filing price moves. Live streaming stays exclusive to VIP.

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$PRTA

$PRTA – Prothena: Bristol Myers Squibb Discontinues Clinical Development of PRX019

PROTHENA CORP PUBLIC LTD CO

2026-10-29 00:00:00 UTC · SEC_8K · All $PRTA

?? Negative AI Sentiment (-6.5 / 10)

BMS informed Prothena of its decision not to advance PRX019 further in clinical trials.
The drug candidate was licensed exclusively to BMS under a global agreement signed in May 2024.
Termination results in the loss of future potential development and commercial milestone payments.

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$PRTA

$PRTA – Prothena 10% Owner Scully Purchases $1.22M in Common Stock

PROTHENA CORP PUBLIC LTD CO

2026-10-26 00:00:00 UTC · SEC_FORM4 · All $PRTA

?? Positive AI Sentiment (+5.0 / 10)

Insider William P. Scully (10% owner) bought 150,000 PRTA shares
Total transaction value: ~$1.22M on the open market
Direct purchase conducted without a Rule 10b5-1 trading plan

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