Prothena Stock (PRTA)

Track Prothena stock through TheStreet Pro's latest coverage, including articles, Daily Diary mentions, TheStreet Pro portfolio activity, contributor watchlist signals, and Pro price levels.

At close

$9.82

▲ +0.22 (+2.29%)

Sep 4, 4:00 PM ET

After-hours

$9.75

▼ -0.07 (-0.71%)

Sep 4, 7:30 PM ET

Market Cap

$504.13M

P/E Ratio

—

1Y Return

+14.85%

EPS (TTM)

-$0.83

Read the latest TheStreet Pro articles mentioning Prothena, including market roundups, portfolio updates, trade ideas, and investing analysis.

Articles

1 article

trade-ideas Inside My Portfolio Part II: 15 More Positions I'm Holding
James "Rev Shark" DePorreDec 26, 2025
PRTA QQQ HUMA

Daily Diary Mentions

0 mentions

No diary mentions for PRTA yet.