ON Semiconductor (NASDAQ: ON) insider transactions
In the twelve months to 10 November 2026, executives and directors of ON Semiconductor reported 15 open-market sales of 281,552 shares ($21.3m) and 0 open-market purchases, by 4 people, according to the Form 4 filings they submitted to the SEC.
Latest transactions
| Date | Insider | Role | Transaction | Shares | Price | Held after | Filing |
|---|---|---|---|---|---|---|---|
| 2 October 2026 | Mascarenas Paul Anthony | Director | Grant or award | +126 | $84.89 | 57,716 | Form 4 |
| 1 October 2026 | Gopalswamy Sudhir | Group President, AMG & ISG | Open-market sale, 10b5-1 plan | −15,578 | $80.00 | 158,177 | Form 4 |
| 2 July 2026 | Mascarenas Paul Anthony | Director | Grant or award | +116 | $91.22 | 57,590 | Form 4 |
| 26 May 2026 | Gopalswamy Sudhir | Group President, AMG & ISG | Shares withheld for tax | −470 | $127.00 | 173,588 | Form 4 |
| 14 May 2026 | Mascarenas Paul Anthony | Director | Grant or award | +1,986 | — | 57,474 | Form 4 |
| 14 May 2026 | Kiddoo Bruce E | Director | Grant or award | +1,986 | — | 19,216 | Form 4 |
| 14 May 2026 | Yan Christine Y | Director | Grant or award | +1,986 | — | 48,655 | Form 4 |
| 14 May 2026 | Carter Susan K | Director | Grant or award | +1,986 | — | 25,638 | Form 4 |
| 14 May 2026 | Waters Gregory L | Director | Grant or award | +1,986 | — | 24,524 | Form 4 |
| 14 May 2026 | Deitrich Thomas | Director | Grant or award | +1,986 | — | 26,060 | Form 4 |
| 24 April 2026 | Thad Trent | Exec VP & CFO | Open-market sale, 10b5-1 plan | −30,000 | $100.00 | 271,194 | Form 4 |
| 23 April 2026 | Thad Trent | Exec VP & CFO | Open-market sale, 10b5-1 plan | −30,000 | $93.00 | 301,194 | Form 4 |
| 16 April 2026 | Thad Trent | Exec VP & CFO | Open-market sale, 10b5-1 plan | −30,000 | $80.00 | 331,194 | Form 4 |
| 3 April 2026 | Mascarenas Paul Anthony | Director | Grant or award | +168 | $62.19 | 55,488 | Form 4 |
| 13 March 2026 | Gopalswamy Sudhir | Group President, AMG & ISG | Open-market sale | −6,114 | $58.67 | 173,943 | Form 4 |
| 21 February 2026 | Keeton Simon | Group President, PSG | Shares withheld for tax | −7,788 | $69.11 | 214,123 | Form 4 |
| 21 February 2026 | Thad Trent | Exec VP & CFO | Shares withheld for tax | −10,383 | $69.11 | 361,079 | Form 4 |
| 21 February 2026 | Gopalswamy Sudhir | Group President, AMG & ISG | Shares withheld for tax | −9,583 | $69.11 | 180,057 | Form 4 |
| 21 February 2026 | El-Khoury Hassane | CEO & President | Shares withheld for tax | −36,802 | $69.11 | 1,054,123 | Form 4 |
| 20 February 2026 | Keeton Simon | Group President, PSG | Grant or award | +26,046 | — | 225,041 | Form 4 |
Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.
How to read the table
Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.
Where each row comes from
From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the ON Semiconductor page; the method, in data sources.
Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.