$PRTA
Prothena Corporation plc Ordinary Shares
XNAS•Health Care•Pharmaceutical Preparations
$8.44
▼-0.24%-$0.020
Subscriptions are live. Early access $24.99/mo, or start with 5 free premium days.
Plans & pricingDonateProthena Corporation plc Ordinary Shares
XNAS•Health Care•Pharmaceutical Preparations
Why is PRTA up today? It is at $8.44 (+0.00%), and our scanner flagged it 11 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment PRTA spikes, and full due diligence on PRTA — key stats, earnings, dilution and insider activity. Free.
Our scanner flagged $PRTA 11 times in the last 30 days. Create a free account to track $PRTA, build a watchlist, and get instant unusual-volume alerts, with a full day of premium now and 5 more when you verify your email, no card needed.
No card · 5 premium days · join 800+ traders
The top plays and unusual-volume catches our scanner flags, emailed to you. No account needed.
No spam. Unsubscribe anytime. Not investment advice.
Here is the latest on PRTA from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for PRTA today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Scully William P Beneficial Owner (10%) | Bought (open market) | +27K 0.05% of company | added 3.4% | 827K | $256K at $9.47 | Sep 2, 26 |
Scully William P Beneficial Owner (10%) | Bought (open market) | +50K 0.10% of company | added 6.7% | 800K | $439K at $8.79 | Aug 20, 26 |
Scully William P Beneficial Owner (10%) | Sold (automatic/other) | -628K 1.2% of company | sold 46% | 750K | n/a | Aug 18, 26 |
Scully William P Beneficial Owner (10%) | Acquired (grant/award) | +336K 0.7% of company | added 32% | 1.38M | n/a | Aug 17, 26 |
Scully William P Beneficial Owner (10%) | Acquired (grant/award) | +252K 0.5% of company | added 32% | 1.04M | n/a | Aug 10, 26 |
Scully William P Beneficial Owner (10%) | Bought (open market) | +34K 0.07% of company | added 4.5% | 790K | $293K at $8.62 | Aug 7, 26 |
Scully William P Beneficial Owner (10%) | Bought (open market) | +4K | added 2.7% | 136K | $30K at $8.62 | Aug 7, 26 |
Isaacs Michael John Officer | Sold (automatic/other) | -8K 0.02% of company | sold 19% | 36K | $71K at $8.47 | Jul 29, 26 |
Kingston Anne Evans Officer | Sold (automatic/other) | -8K 0.01% of company | sold 12% | 56K | $65K at $8.47 | Jul 29, 26 |
Isaacs Michael John Officer | Sold (automatic/other) | -5K | sold 9.6% | 44K | $40K at $8.56 | Jul 28, 26 |
Kingston Anne Evans Officer | Sold (automatic/other) | -3K | sold 5.2% | 63K | $30K at $8.56 | Jul 28, 26 |
Kinney Gene G. Officer | Sold (automatic/other) | -84K 0.2% of company | sold 55% | 69K | $719K at $8.56 | Jul 28, 26 |
Recent Form-4 filings via Nasdaq. Open-market buys are the signal worth watching. Grants and automatic (10b5-1) sells are routine. “% of position” is the share of that insider’s own holding the trade moved. Not investment advice.
Blend of news sentiment, today’s move, and community votes. Not investment advice.
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
Comparable names in pharmaceutical preparations, closest in size first.
Here is the latest on PRTA from our scanner (live price and day move above). We have not detected an unusual-volume catalyst for PRTA today, so it is trading in line with its recent range. The moment our scanner flags unusual activity, the reason will appear here.
PRTA last traded at $8.44, up 0.00% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Prothena Corporation plc Ordinary Shares (PRTA) is next expected to report earnings on Thursday, November 5, 2026, about 49 days away. Earnings reports often cause large overnight gaps, so many traders manage risk around the date. The date can shift until the company officially confirms it.
The PRTA Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged PRTA 11 times in the last 30 days.
PRTA (Prothena Corporation plc Ordinary Shares) trades on XNAS, with a market cap of about $423M in the Pharmaceutical Preparations sector.
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge PRTA for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.
$PRTA discussion
Sign in to ask a question or join the discussion.