$PRME
Prime Medicine, Inc. Common Stock
XNAS
Why is PRME down today? It is at $3.28 (-7.34%), and our scanner flagged it 122 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment PRME spikes, and full due diligence on PRME — key stats, earnings, dilution and insider activity. Free.
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Our scanner flagged $PRME 122 times in the last 30 days. Create a free account to track $PRME, 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.
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Key Stats
- Price
- $3.28
- Change today
- -7.34%
- Previous close
- $3.54
- 52-week range
- $2.67 – $6.94
- Market cap
- $553M
- Shares outstanding
- 181.4M
- Short interest
- 35.0M ▲ +4% vs prior · as of 2026-07-31
- Short % of float
- 19.3%
- Days to cover
- 12.9d
- Avg daily volume
- 3.2M
- Exchange
- XNAS
- 5m
- 0.5x
- 15m
- 1.0x
- 1h
- 1.3x
- 1D
- 0.4x
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Why is $PRME down today?
PRME is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 7 unusual-volume and momentum alerts on PRME today, peaking at 9.1x its normal volume. A move this size is almost always tied to a specific catalyst. Most of the time that is an earnings report, a guidance update, or a company announcement. If none is shown above, the release may not be in our news feed yet. It will show up here as soon as it is.
Analyst data via Nasdaq. Not investment advice.
From the trading subreddits (WallStreetBets, r/stocks and more). Retail chatter, not a signal. Do your own research.
Insiders
7 open-market buys0 buys, 0 sells last 3 months (0/0 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Arch Venture Partners X, Llc Beneficial Owner (10%) | Bought (open market) | +3.03M 1.7% of company | added 20% | 18.49M | $10.0M at $3.30 | Aug 1, 25 |
Arch Venture Partners Xii, Llc Beneficial Owner (10%) | Bought (open market) | +3.03M 1.7% of company | added 20% | 18.49M | $10.0M at $3.30 | Aug 1, 25 |
Nelsen Robert Director | Bought (open market) | +3.03M 1.7% of company | added 20% | 18.50M | $10.0M at $3.30 | Aug 1, 25 |
Gv 2021 Gp, L.L.C. Beneficial Owner (10%) | Bought (open market) | +1.50M 0.8% of company | added 85% | 3.26M | $5.0M at $3.30 | Aug 1, 25 |
Liu David R. Beneficial Owner (10%) | Acquired (grant/award) | +21K 0.01% of company | added 0.1% | 20.24M | $53K at $2.52 | Jun 30, 25 |
Liu David R. Beneficial Owner (10%) | Acquired (grant/award) | +21K 0.01% of company | added 0.1% | 20.22M | $45K at $2.16 | Jun 23, 25 |
Liu David R. Beneficial Owner (10%) | Acquired (grant/award) | +21K 0.01% of company | added 0.1% | 20.20M | $31K at $1.49 | Jun 16, 25 |
Liu David R. Beneficial Owner (10%) | Acquired (grant/award) | +21K 0.01% of company | added 0.1% | 20.18M | $34K at $1.60 | Jun 11, 25 |
Reine Allan Officer | Bought (open market) | +125K 0.07% of company | n/a | 125K | $148K at $1.18 | May 21, 25 |
Lee Ann L. Officer | Bought (open market) | +100K 0.06% of company | n/a | 100K | $113K at $1.13 | May 21, 25 |
Brudnick Richard Officer | Bought (open market) | +20K 0.01% of company | n/a | 20K | $24K at $1.19 | May 20, 25 |
Gottesdiener Keith Michael Officer | Sold (automatic/other) | -227K 0.1% of company | sold 82% | 50K | n/a | Oct 8, 24 |
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.
Dilution watch
UnavailableWe could not reach SEC EDGAR, so the dilution check did not run for $PRME. This is not a clean result: there may be an offering, a registration or a shelf on file that we were unable to read. Check it yourself on SEC EDGAR before trading it.
$PRME Sentiment
NeutralBlend of news sentiment, today’s move, and community votes. Not investment advice.
$PRME Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
PRME stock FAQ
Why is $PRME down today?
PRME is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 7 unusual-volume and momentum alerts on PRME today, peaking at 9.1x its normal volume. A move this size is almost always tied to a specific catalyst. Most of the time that is an earnings report, a guidance update, or a company announcement. If none is shown above, the release may not be in our news feed yet. It will show up here as soon as it is.
What is the PRME stock price today?
PRME last traded at $3.28, down 7.34% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live PRME alerts?
The PRME 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 PRME 122 times in the last 30 days.
What exchange is PRME on?
PRME (Prime Medicine, Inc. Common Stock) trades on XNAS, with a market cap of about $553M.
Is PRME good for day trading?
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 PRME for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.