$OMER
Omeros Corporation
XNAS•Health Care•Pharmaceutical Preparations
Why is OMER up today? It is at $18.50 (+0.60%), and our scanner flagged it 175 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment OMER spikes, and full due diligence on OMER — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $18.50
- Change today
- +0.60%
- Previous close
- $18.39
- 52-week range
- $3.94 – $18.89
- Market cap
- $1.24B
- Institutional own.
- 56.69%
- Total held
- 64.4%
- Tradeable float
- 25.8M 36% of shares · after 8% insiders + 57% institutions
- Short interest
- 15.4M ▲ +2% vs prior · as of 2026-07-31
- Short % of float
- 59.9%
- Days to cover
- 9.9d
- Avg daily volume
- 2.3M
- Sector
- Health Care
- Industry
- Pharmaceutical Preparations
- Exchange
- XNAS
- 5m
- 0.0x
- 15m
- 0.2x
- 1h
- 0.2x
- 1D
- 0.3x
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Why is $OMER up today?
OMER is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 1 unusual-volume and momentum alert on OMER today, peaking at 13.0x its normal volume.
Likely catalystExecutive / Board Change, from an SEC filing. Read it →Insiders
0 buys, 2 sells last 3 months (1/6 over 12 months)Show 11 recent transactionsMinimize 11 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Borges David J. Officer | Sold (automatic/other) | -5K | n/a | n/a | $85K at $16.95 | Aug 13, 26 |
Borges David J. Officer | Other | 5K | n/a | 5K | $20K at $3.93 | Aug 13, 26 |
Cable Thomas J. Director | Sold (automatic/other) | -8K 0.01% of company | sold 18% | 35K | $87K at $11.61 | May 22, 26 |
Cable Thomas J. Director | Other | 8K 0.01% of company | added 21% | 43K | $81K at $10.84 | May 22, 26 |
Demopulos Gregory A Md Officer | Sold (automatic/other) | -358K 0.5% of company | sold 20% | 1.47M | $4.3M at $11.93 | Feb 18, 26 |
Demopulos Gregory A Md Officer | Other | 400K 0.6% of company | added 28% | 1.83M | $4.1M at $10.27 | Feb 18, 26 |
Borges David J. Officer | Sold (automatic/other) | -30K 0.04% of company | n/a | n/a | $369K at $12.31 | Jan 13, 26 |
Borges David J. Officer | Other | 30K 0.04% of company | n/a | 30K | $92K at $3.06 | Jan 13, 26 |
Borges David J. Officer | Sold (automatic/other) | -30K 0.04% of company | n/a | n/a | $382K at $12.72 | Jan 12, 26 |
Demopulos Gregory A Md Officer | Sold (automatic/other) | -600K 0.8% of company | sold 30% | 1.43M | n/a | Oct 13, 25 |
Demopulos Gregory A Md Officer | Acquired (grant/award) | +600K 0.8% of company | added 100% | 724K | n/a | Oct 13, 25 |
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 $OMER. 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.
$OMER Sentiment
NeutralBlend of news sentiment, today’s move, and community votes. Not investment advice.
$OMER Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
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OMER stock FAQ
Why is $OMER up today?
OMER is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 1 unusual-volume and momentum alert on OMER today, peaking at 13.0x its normal volume.
What is the OMER stock price today?
OMER last traded at $18.50, up 0.60% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live OMER alerts?
The OMER 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 OMER 175 times in the last 30 days.
What exchange is OMER on?
OMER (Omeros Corporation) trades on XNAS, with a market cap of about $1.24B in the PHARMACEUTICAL PREPARATIONS sector.
Is OMER 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 OMER for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.