PRTA Stock Chart - Prothena Corporation plc logo

PRTA Stock Chart

Prothena Corporation plc

$8.35
-$0.15(-1.76%)
36
Overall
60
Value
10
Tech
39
Quality
How is this score calculated?
Market Cap
$428.66M
Volume
670.26K
52W Range
$7.73 - $11.80
Target Price
$19.33

PRTA stock chart: Prothena Corporation plc's price history from one week to all-time, with daily volume. The 52-week range is $7.73 to $11.80.

PRTA Stock Price History

Close (Oct 16, 2026)
$8.35
Return since Oct 15, 2025
-21.67%
High (period)
$11.51
Low (period)
$7.91
50-day moving average
$8.87
200-day moving average
$9.27
PRTA month-end closing prices
MonthClose
Oct 2026$8.35
Sep 2026$8.38
Aug 2026$9.35
Jul 2026$8.12
Jun 2026$9.79
May 2026$10.18
Apr 2026$11.06
Mar 2026$9.72
Feb 2026$8.67
Jan 2026$8.81
Dec 2025$9.55
Nov 2025$10.75
ABCD
1SymbolPriceChangeVol
2PRTA$8.35-1.8%670.26K
3
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5
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Stock data provided by MarketXLS.