ON · Insider Trading
ON Semiconductor Corp
Every open-market purchase and sale reported by ON officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-02 | Paul Anthony Mascarenas | Director | A | +126 | +$10.70K |
| 2026-10-02 | Sudhir Gopalswamy | Group President, AMG & ISG | Sell | −15,578 | −$1.25M |
| 2026-07-02 | Paul Anthony Mascarenas | Director | A | +116 | +$10.58K |
| 2026-05-27 | Sudhir Gopalswamy | Group President, AMG & ISG | F | −470 | −$59.69K |
| 2026-05-18 | Paul Anthony Mascarenas | Director | A | +1,986 | — |
| 2026-05-18 | Bruce E Kiddoo | Director | A | +1,986 | — |
| 2026-05-18 | Christine Y Yan | Director | A | +1,986 | — |
| 2026-05-18 | Susan K Carter | Director | A | +1,986 | — |
| 2026-05-18 | Gregory L Waters | Director | A | +1,986 | — |
| 2026-05-18 | Thomas Deitrich | Director | A | +1,986 | — |
| 2026-04-27 | Trent Thad | Exec VP & CFO | Sell | −60,000 | −$5.79M |
| 2026-04-17 | Trent Thad | Exec VP & CFO | Sell | −30,000 | −$2.40M |
| 2026-04-06 | Paul Anthony Mascarenas | Director | A | +168 | +$10.45K |
| 2026-03-16 | Sudhir Gopalswamy | Group President, AMG & ISG | Sell | −6,114 | −$358.71K |
| 2026-02-24 | Simon Keeton | Group President, PSG | MIXED | +15,128 | −$754.54K |
| 2026-02-24 | Trent Thad | Exec VP & CFO | MIXED | +21,619 | −$1.01M |
| 2026-02-24 | Sudhir Gopalswamy | Group President, AMG & ISG | MIXED | +20,796 | −$762.84K |
| 2026-02-24 | Hassane El-Khoury | CEO & President | MIXED | +38,513 | −$2.54M |
| 2026-02-18 | Simon Keeton | Group President, PSG | Sell | −48,860 | −$3.51M |
| 2026-02-13 | Bruce E Kiddoo | Director | G | −3,570 | — |
| 2026-02-12 | Sudhir Gopalswamy | Group President, AMG & ISG | F | −6,191 | −$417.15K |
| 2026-02-12 | Trent Thad | Exec VP & CFO | MIXED | −66,709 | −$4.73M |
| 2026-02-12 | Hassane El-Khoury | CEO & President | MIXED | −40,762 | −$2.86M |
| 2026-02-12 | Simon Keeton | Group President, PSG | F | −5,032 | −$339.06K |
| 2026-02-09 | Hassane El-Khoury | CEO & President | MIXED | +78,312 | −$2.25M |
| 2026-02-09 | Trent Thad | Exec VP & CFO | MIXED | +26,592 | −$800.00K |
| 2026-02-09 | Simon Keeton | Group President, PSG | MIXED | +19,915 | −$601.93K |
| 2026-02-09 | Sudhir Gopalswamy | Group President, AMG & ISG | MIXED | +21,467 | −$393.87K |
| 2025-12-19 | Paul Anthony Mascarenas | Director | A | +189 | +$10.43K |
| 2025-12-08 | Simon Keeton | Group President, PSG | Sell | −21,000 | −$1.17M |
| 2025-12-04 | Trent Thad | Exec VP & CFO | Sell | −20,000 | −$1.10M |
| 2025-10-06 | Paul Anthony Mascarenas | Director | A | +212 | +$10.45K |
| 2025-08-15 | Hassane El-Khoury | CEO & President | Sell | −15,000 | −$768.26K |
| 2025-07-07 | Paul Anthony Mascarenas | Director | A | +185 | +$10.47K |
| 2025-06-12 | Alan Campbell | Director | Sell | −5,371 | −$274.78K |
| 2025-05-27 | Sudhir Gopalswamy | Group President, AMG & ISG | F | −470 | −$19.40K |
| 2025-05-16 | Alan Campbell | Director | A | +5,054 | — |
| 2025-05-16 | Susan K Carter | Director | A | +5,054 | — |
| 2025-05-16 | Thomas Deitrich | Director | A | +5,054 | — |
| 2025-05-16 | Gregory L Waters | Director | A | +5,054 | — |
| 2025-05-16 | Bruce E Kiddoo | Director | A | +5,054 | — |
| 2025-05-16 | Paul Anthony Mascarenas | Director | A | +5,054 | — |
| 2025-05-16 | Christine Y Yan | Director | A | +5,054 | — |
| 2025-04-07 | Paul Anthony Mascarenas | Director | A | +310 | +$10.45K |
| 2025-03-12 | Alan Campbell | Director | Sell | −10,000 | −$432.26K |
| 2025-03-10 | Sudhir Gopalswamy | Group President, AMG & ISG | F | −3,306 | −$150.09K |
| 2025-02-24 | Trent Thad | Exec VP & CFO | MIXED | +35,969 | −$462.96K |
| 2025-02-24 | Sudhir Gopalswamy | Group President, AMG & ISG | MIXED | +27,925 | −$293.13K |
| 2025-02-24 | Hassane El-Khoury | CEO & President | MIXED | +69,423 | −$1.27M |
| 2025-02-24 | Simon Keeton | Group President, PSG | MIXED | +26,976 | −$347.26K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Hassane El-Khoury | CEO & President | 1,054,123 | $77.19M |
| Trent Thad | Exec VP & CFO | 301,194 | $22.06M |
| Simon Keeton | Group President, PSG | 225,041 | $16.48M |
| Sudhir Gopalswamy | Group President, AMG & ISG | 158,177 | $11.58M |
| Alan Campbell | Director | 84,689 | $6.20M |
| Paul Anthony Mascarenas | Director | 57,716 | $4.23M |
| Christine Y Yan | Director | 48,655 | $3.56M |
| Gregory L Waters | Director | 41,524 | $3.04M |
| Thomas Deitrich | Director | 26,060 | $1.91M |
| Susan K Carter | Director | 25,638 | $1.88M |
| Bruce E Kiddoo | Director | 19,216 | $1.41M |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the ON quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.