ON SEMICONDUCTOR CORP (ON)
Data as of , from SEC Form 4 filings.
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About ON SEMICONDUCTOR CORP (ON)
The SEC lists ON SEMICONDUCTOR CORP under CIK 0001097864, in semiconductors and related devices. It is grouped with Information Technology companies on this site. The registration was withdrawn on 2 October 2026, so the planned offering is not going ahead in its filed form.
ON Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 1 | 15,578 | $1.25M |
| Grant or award | 1 | 126 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
ON insider transactions (Form 4)
1848 Form 4 filings on record, the earliest from Oct 16, 2024, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Hassane El-Khoury - Officer | Open-market sale | Common | 15,000 | $51.22 | $768K | |
 Paul Anthony Mascarenas - Director | Grant or award | Common | 185 | $56.60 | $10K | |
| Alan Campbell - Director | Open-market sale | Common | 5,371 | $51.16 | $275K | |
| Sudhir Gopalswamy - Officer | Tax withholding / forfeiture | Common | 470 | $41.27 | $19K | |
| Paul Anthony Mascarenas - Director | Grant or award | Common | 5,054 | $0.00 | - | |
| Christine Y. Yan - Director | Grant or award | Common | 5,054 | $0.00 | - | |
| Bruce E. Kiddoo - Director | Grant or award | Common | 5,054 | $0.00 | - | |
| Thomas Deitrich - Director | Grant or award | Common | 5,054 | $0.00 | - | |
| Gregory L. Waters - Director | Grant or award | Common | 5,054 | $0.00 | - | |
 Susan K. Carter - Director | Grant or award | Common | 5,054 | $0.00 | - | |
| Alan Campbell - Director | Grant or award | Common | 5,054 | $0.00 | - | |
| Paul Anthony Mascarenas - Director | Grant or award | Common | 310 | $33.70 | $10K | |
| Paul Anthony Mascarenas - Director | Grant or award | Common | 160 | $65.50 | $10K | |
| Simon Keeton - Officer | Open-market sale | Common | 28,000 | $68.56 | $1.92M | |
| Sudhir Gopalswamy - Officer | Open-market sale | Common | 21,082 | $67.64 | $1.43M | |
| Hassane El-Khoury - Officer | Open-market sale | Common | 1,500 | $70.00 | $105K | |
| Hassane El-Khoury - Officer | Open-market sale | Common | 1,500 | $71.00 | $107K | |
| Hassane El-Khoury - Officer | Open-market sale | Common | 1,500 | $72.71 | $109K |
Recent ON Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| GOPALSWAMY SUDHIR | Officer | 15,578 | $1.25M | View on EDGAR | |
| - | - | - |
Stock trades in ON disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.
| Member | Type | Traded | Disclosed | Value range | Owner | Days to disclose | Filing |
|---|---|---|---|---|---|---|---|
 Gilbert Ray Cisneros, Jr.Democrat, CA-31 | Purchase |
ON insider trading FAQ
What is the latest insider trade for ON?
ON SEMICONDUCTOR CORP (ON) had 2 insider filings in the last 90 days, with the most recent on 2026-10-02. The full record for ON runs to 48 Form 4 filings, the earliest from 2024-10-16. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying ON stock?
No insider purchases of ON were filed in the last 90 days.
How many insiders are selling ON stock?
1 insider sale of ON was filed in the last 90 days, totaling $1.25M.
Where can I see ON SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects ON Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Information Technology companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Paul Anthony Mascarenas view on EDGAR
- - Sudhir Gopalswamy view on EDGAR
- - Paul Anthony Mascarenas view on EDGAR
- - Sudhir Gopalswamy view on EDGAR
- - Thomas Deitrich view on EDGAR
- - Gregory L. Waters view on EDGAR
- - Susan K. Carter view on EDGAR
- - Christine Y. Yan view on EDGAR
- - Bruce E. Kiddoo view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Information Technology
- Where ON's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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- Every ON Form 4 filing on record
- Up to 3 months of ON price history
- The daily trading plan of ranked insider buys, on a delay, with the plan archive
