$ON
ON Semiconductor Corp
XNAS•Technology•Semiconductors & Related Devices
Why is ON up today? It is at $72.69 (+0.06%), and our scanner flagged it 143 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment ON spikes, and full due diligence on ON — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $72.69
- Change today
- +0.06%
- Previous close
- $72.65
- 52-week range
- $44.56 – $134.92
- Market cap
- $28.84B
- Institutional own.
- 99.9%
- Total held
- 100.0%
- Short interest
- 29.2M ▼ -6% vs prior · as of 2026-08-14
- Days to cover
- 2.7d
- Avg daily volume
- 9.8M
- Sector
- Technology
- Industry
- Semiconductors & Related Devices
- Exchange
- XNAS
- 5m
- 0.3x
- 15m
- 0.4x
- 1h
- 0.7x
- 1D
- 0.0x
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Why is $ON moving today?
ON 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 ON today.
Likely catalystMerger / acquisition communication (425), from an SEC filing. Read it →Latest filingS-4Filing (S-4)Aug 21, 2026 · 12 days agoAnalyst data via Nasdaq. Not investment advice.
Insiders
Insiders buying1 buys, 0 sells last 3 months (18/26 over 12 months)Show 12 recent transactionsMinimize 12 recent transactions
| Insider | Action | Shares | % of position | Owns after | Value | Date |
|---|---|---|---|---|---|---|
Mascarenas Paul Anthony Director | Acquired (grant/award) | +116 | added 0.2% | 58K | $11K at $91.22 | Jul 2, 26 |
Gopalswamy Sudhir Officer | Sold (automatic/other) | -470 | sold 0.3% | 174K | $60K at $127.00 | May 26, 26 |
Mascarenas Paul Anthony Director | Acquired (grant/award) | +2K | added 3.6% | 57K | n/a | May 14, 26 |
Kiddoo Bruce E Director | Acquired (grant/award) | +2K | added 12% | 19K | n/a | May 14, 26 |
Yan Christine Y Director | Acquired (grant/award) | +2K | added 4.3% | 49K | n/a | May 14, 26 |
Carter Susan K Director | Acquired (grant/award) | +2K | added 8.4% | 26K | n/a | May 14, 26 |
Waters Gregory L Director | Acquired (grant/award) | +2K | added 8.8% | 25K | n/a | May 14, 26 |
Deitrich Thomas Director | Acquired (grant/award) | +2K | added 8.2% | 26K | n/a | May 14, 26 |
Thad Trent Officer | Sold (automatic/other) | -30K | sold 10.0% | 271K | $3.0M at $100.00 | Apr 24, 26 |
Thad Trent Officer | Sold (automatic/other) | -30K | sold 9.1% | 301K | $2.8M at $93.00 | Apr 23, 26 |
Thad Trent Officer | Sold (automatic/other) | -30K | sold 8.3% | 331K | $2.4M at $80.00 | Apr 16, 26 |
Mascarenas Paul Anthony Director | Acquired (grant/award) | +168 | added 0.3% | 55K | $10K at $62.19 | Apr 3, 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.
$ON Sentiment
BullishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$ON Activity
News, unusual-volume alerts, AI-trader trades and community chatter - the whole story, newest first.
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ON stock FAQ
Why is $ON moving today?
ON 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 ON today.
What is the ON stock price today?
ON last traded at $72.69, up 0.06% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live ON alerts?
The ON 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 ON 143 times in the last 30 days.
What exchange is ON on?
ON (ON Semiconductor Corp) trades on XNAS, with a market cap of about $28.84B in the SEMICONDUCTORS & RELATED DEVICES sector.
Is ON 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 ON for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.