Company profile
On Semiconductor Corp Insider Trading
ONEvery SEC Form 4 insider trading filing for On Semiconductor Corp (ON) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Semiconductors & Related Devices
- CIK
- 0001097864
- Filings
- 137
- Insiders
- 15
- Last filing
- 2026-07-02
Activity summary
No insider transactions in the last 30 days. The most recent was on July 2, 2026, when Paul Anthony Mascarenas bought 116 shares. 137 filings from 15 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. On Semiconductor Corp insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $21.3M.
90 day insight
Over the last 90 days, On Semiconductor Corp insiders bought $11K across 1 transaction with no open-market sales.
- Most active insider: Paul Anthony Mascarenas with 1 transaction totaling $11K.
- Largest single purchase: $11K by Paul Anthony Mascarenas on Jul 2, 2026.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 2, 2026 | Paul Anthony Mascarenas | ON | Award | 116 | $91.22 | $11K |
| May 26, 2026 | Sudhir Gopalswamy | ON | Tax Withholding | 470 | $127.00 | $60K |
| May 14, 2026 | Susan K Carter | ON | Award | 1,986 | — | — |
| May 14, 2026 | Thomas Deitrich | ON | Award | 1,986 | — | — |
| May 14, 2026 | Bruce E Kiddoo | ON | Award | 1,986 | — | — |
45 more transactions hidden
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curl "https://api.form4api.com/v1/transactions?ticker=ON" \
-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of On Semiconductor Corp as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →