Prothena Corporation plc - Ordinary Shares (NQ:PRTA)
Price and Volume
Detailed Quote| Volume | 24 |
| Open | 7.890 |
| Bid (Size) | 7.000 (500) |
| Ask (Size) | 8.000 (500) |
| Prev. Close | 7.890 |
| Today's Range | 7.890 - 7.890 |
| 52wk Range | 7.730 - 11.80 |
| Shares Outstanding | 45,047,449 |
| Dividend Yield | N/A |
Top News
More News
Prothena (NASDAQ:PRTA) Posts Q3 2026 Revenue Miss but Narrows Loss ↗
November 05, 2026
Performance
52-Week Range
33.1% below 52-week high
7.890
7.7352W Low
11.8052W High
1 Week
11.3% below 1-week high
7.871W Low
8.901W High
Prothena Corporation plc - Ordinary Shares (PRTA) traded between $7.73 and $11.80 over the past 52 weeks and last traded at $7.89, 33.1% below its 52-week high. Over the past week it ranged between $7.87 and $8.90.
Past 12 Months
1W
-$0.58
1M
-$0.13
3M
-$0.69
6M
-$2.63
YTD
-$1.31
1Y
-$2.38
PRTA was -23.2% over the past year, -25.0% over six months, -14.2% year to date, -6.8% in the last week.
12 Months vs Market
PRTA
-23.2%
DIA
+8.7%
SPY
+8.2%
QQQ
+3.8%
IWM
+10.7%
Over the past 12 months PRTA returned -23.2% versus DIA (Dow) +8.7%, SPY (S&P 500) +8.2%, QQQ (Nasdaq 100) +3.8% and IWM (Russell 2000) +10.7%.
Volume & Liquidity
0.00× 3-mo avg
Today 24
3-mo avg 466.7K
1W
402.3K
1M
521.2K
3M
466.7K
6M
524.2K
YTD
509.6K
1Y
537.1K
PRTA most recently traded 24 shares against a 3-month average daily volume of 466.7K.
More News
Read More
What's going on in today's after hours session ↗
April 27, 2026
Prothena Announces Leadership Team Updates
April 10, 2026
Prothena Announces up to $100 Million Share Repurchase Plan
February 27, 2026
Prothena Announces Board of Directors Update
December 12, 2025
Frequently Asked Questions
Is Prothena Corporation plc - Ordinary Shares publicly traded?
Yes, Prothena Corporation plc - Ordinary Shares is publicly traded.
What exchange does Prothena Corporation plc - Ordinary Shares trade on?
Prothena Corporation plc - Ordinary Shares trades on the Nasdaq Stock Market
What is the ticker symbol for Prothena Corporation plc - Ordinary Shares?
The ticker symbol for Prothena Corporation plc - Ordinary Shares is PRTA on the Nasdaq Stock Market
What is the current price of Prothena Corporation plc - Ordinary Shares?
The current price of Prothena Corporation plc - Ordinary Shares is 7.890
When was Prothena Corporation plc - Ordinary Shares last traded?
The last trade of Prothena Corporation plc - Ordinary Shares was at 11/05/26 04:00 PM ET
What is the market capitalization of Prothena Corporation plc - Ordinary Shares?
The market capitalization of Prothena Corporation plc - Ordinary Shares is 355.42M
How many shares of Prothena Corporation plc - Ordinary Shares are outstanding?
Prothena Corporation plc - Ordinary Shares has 355M shares outstanding.
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