SEC Form 4
ON Semiconductor Corp (ON) insider trading
In the 12 months to Oct 24, 2026, 4 ON insiders reported open-market sales of $21.3M across 9 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $21.3M
- 9 filings · 4 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 4 of 9
- $13.7M of $21.3M sold (64%)
Who traded ON, and when
- Sale
- Sale, pre-arranged (10b5-1)
ON daily close from Oct 24, 2025 to Oct 23, 2026, between $44.90 and $133.93, last $72.25. 9 sale and 0 purchase filings by 4 insiders, marked at their filing dates. Trent Thad, Exec VP & CFO: sold $13.6M across 4 filings, first filed Dec 4, 2025, last Apr 27, 2026. Simon Keeton, Group President, PSG: sold $4.7M across 2 filings, first filed Dec 8, 2025, last Feb 18, 2026. Sudhir Gopalswamy, Group President, AMG & ISG: sold $1.6M across 2 filings, first filed Mar 16, 2026, last Oct 2, 2026. Hassane El-Khoury, CEO & President: sold $1.5M across 1 filing, first filed Feb 12, 2026, last Feb 12, 2026.
Largest mark · tap a row for others
Trent Thad · Exec VP & CFO
Sale $5,790,000
60,000 shares at $96.50 avg
Filed Apr 27, 2026 · traded Apr 23
Pre-arranged (10b5-1) · close on filing date $98.04
Trent Thad · Exec VP & CFO
Exec VP & CFO
$13.6M soldSimon Keeton · Group President, PSG
Group President, PSG
$4.7M soldSudhir Gopalswamy · Group President, AMG & ISG
Group President, AMG & ISG
$1.6M soldHassane El-Khoury · CEO & President
CEO & President
$1.5M soldHas ON Semiconductor Corp's CEO sold stock?
Yes. Hassane El-Khoury (CEO) sold 20,000 shares ($1.5M) in Feb 2026.
Open-market trades
9 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Trent Thad | Exec VP & CFO | $13.6M | — | 4 | 92% of sales | |
| Simon Keeton | Group President, PSG | $4.7M | — | 2 | — | |
| Sudhir Gopalswamy | Group President, AMG & ISG | $1.6M | — | 2 | 78% of sales | |
| Hassane El-Khoury | CEO & President | $1.5M | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Sudhir Gopalswamy Group President, AMG & ISG | SalePre-arranged (10b5-1) | 15,578 | $80.00 | $1.2M | 158,177 | |
traded | Trent Thad Exec VP & CFO | SalePre-arranged (10b5-1) | 60,000 | $96.50 | $5.8M | 271,194 | |
traded | Trent Thad Exec VP & CFO | SalePre-arranged (10b5-1) | 30,000 | $80.00 | $2.4M | 331,194 | |
traded | Sudhir Gopalswamy Group President, AMG & ISG | Sale | 6,114 | $58.67 | $358.7K | 173,943 | |
traded | Simon Keeton Group President, PSG | Sale | 48,860 | $71.75 | $3.5M | 198,995 | |
traded | Trent Thad Exec VP & CFO | SalePre-arranged (10b5-1) | 60,000 | $71.22 | $4.3M | 339,460 | |
traded | Hassane El-Khoury CEO & President | Sale | 20,000 | $73.02 | $1.5M | 1,035,510 | |
traded | Simon Keeton Group President, PSG | Sale | 21,000 | $55.72 | $1.2M | 232,843 | |
traded | Trent Thad Exec VP & CFO | Sale | 20,000 | $55.05 | $1.1M | 379,448 |
GET /stocks/filings/vX/form-4?tickers=ON&filing_date.gte=2025-10-24&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"ON"
],
"issuer_cik": "0001097864",
"owner_cik": "0001722291",
"accession_number": "0001225208-26-008113",
"form_type": "4",
"filing_date": "2026-10-02",
"period_of_report": "2026-10-01",
"issuer_name": "ON SEMICONDUCTOR CORP",
"issuer_trading_symbol": "ON",
"owner_name": "GOPALSWAMY SUDHIR",
"is_officer": true,
"officer_title": "Group President, AMG & ISG",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-01",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 15578,
"transaction_price_per_share": 80,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 158177,
"transaction_value": 1246240,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "Includes an additional 167 shares that were acquired by the Reporting Person under the Issuer's Employee Stock Purchase Plan since his last Section 16 filing."
}
]
},
{
"tickers": [
"ON"
],
"issuer_cik": "0001097864",
"owner_cik": "0001607990",
"accession_number": "0001225208-26-004632",
"form_type": "4",
"filing_date": "2026-04-27",
"period_of_report": "2026-04-23",
"issuer_name": "ON SEMICONDUCTOR CORP",
"issuer_trading_symbol": "ON",
"owner_name": "Thad Trent",
"is_officer": true,
"officer_title": "Exec VP & CFO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-04-24",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 30000,
"transaction_price_per_share": 100,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 271194,
"transaction_value": 3000000,
"direct_or_indirect": "D"
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 44 records
- Tax withholding16 records
- Grants and awards27 records
- Gifts1 record
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for ON every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.