ON
ON Semiconductor insider trading
Information Technology · Heavy selling
Close · Oct 5, 2026
$85.93
+70.7% over 12 months
Share price and insider trades
ON closeInsider buyInsider sale
Bought, 12 months$0
Sold, 12 months$21.3M
Insiders buying0
Insiders selling4
Valuation, profit and volume
P/E (trailing)n/aSector median 32.1
Market value—
Profit margin—Revenue growth —
Volume vs. 50-day1.3×Last 5 sessions
Insiders' paper profit—On all tracked purchases —
Summary
Over the past 12 months, 0 ON Semiconductor insiders reported open-market purchases totaling $0, while 4 insiders reported sales totaling $21.3M. 8 of 15 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales. 45 grants, option exercises and tax withholdings are not shown.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Oct 2SEC | Sudhir GopalswamyPresident | Sell Plan | 15,578 | $80.00 | $1.2M | +7.4% | — |
| Apr 27SEC | Trent ThadCFO | Sell Plan | 30,000 | $100.00 | $3.0M | -14.1% | — |
| Apr 27SEC | Trent ThadCFO | Sell Plan | 30,000 | $93.00 | $2.8M | -7.6% | — |
| Apr 17SEC | Trent ThadCFO | Sell Plan | 30,000 | $80.00 | $2.4M | +7.4% | — |
| Mar 16SEC | Sudhir GopalswamyPresident | Sell | 6,114 | $58.67 | $359K | +46.5% | — |
| Feb 18SEC | Simon KeetonPresident | Sell | 44,263 | $71.77 | $3.2M | +19.7% | — |
| Feb 18SEC | Simon KeetonPresident | Sell | 4,597 | $71.56 | $329K | +20.1% | — |
| Feb 12SEC | Trent ThadCFO | Sell Plan | 49,500 | $70.87 | $3.5M | +21.2% | — |
| Feb 12SEC | Hassane El-khouryCEO, President | Sell | 19,900 | $73.02 | $1.5M | +17.7% | — |
| Feb 12SEC | Trent ThadCFO | Sell Plan | 7,000 | $72.88 | $510K | +17.9% | — |
| Feb 12SEC | Trent ThadCFO | Sell Plan | 2,200 | $73.39 | $161K | +17.1% | — |
| Feb 12SEC | Trent ThadCFO | Sell Plan | 1,300 | $71.70 | $93K | +19.8% | — |
| Feb 12SEC | Hassane El-khouryCEO, President | Sell | 100 | $73.56 | $7K | +16.8% | — |
| Dec 8SEC | Simon KeetonPresident | Sell | 21,000 | $55.72 | $1.2M | +54.2% | — |
| Dec 4SEC | Trent ThadCFO | Sell | 20,000 | $55.05 | $1.1M | +56.1% | — |
Insiders at ON Semiconductor
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Trent ThadCFO | — | $13.6M | Apr 27, 2026 | — |
| Simon KeetonPresident | — | $4.7M | Feb 24, 2026 | — |
| Sudhir GopalswamyPresident | — | $1.6M | Oct 2, 2026 | — |
| Hassane El-khouryCEO, President | — | $1.5M | Feb 24, 2026 | — |
| Paul Anthony MascarenasDirector | — | — | Oct 2, 2026 | — |
| Bruce E KiddooDirector | — | — | May 18, 2026 | — |
| Christine Y YanDirector | — | — | May 18, 2026 | — |
| Susan K CarterDirector | — | — | May 18, 2026 | — |
| Gregory L WatersDirector | — | — | May 18, 2026 | — |
| Thomas DeitrichDirector | — | — | May 18, 2026 | — |
Insider activity at other Information Technology companies
Same sector, ranked by insider buying in the last 90 days.
Common questions about ON insiders
Are ON Semiconductor insiders buying ON stock?
In the past 12 months, 0 insiders reported open-market purchases of ON worth $0.
Are ON Semiconductor insiders selling ON stock?
4 insiders reported sales worth $21.3M over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.