SEC Form 4 reporting owner

Keeton Simon

Keeton Simon has filed 11 Form 4 transactions reported between December 4, 2025 and February 21, 2026, as Group President, PSG of ON SEMICONDUCTOR CORP.

Name as filed: KEETON SIMON

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$4.7M

3 lines

Companies

with Form 4 filings

Latest transaction

Feb 21, 2026

transaction date

Roles and reported holdings

ONON SEMICONDUCTOR CORP
Dec 4, 2025 – Feb 21, 2026
Group President, PSG
Held directly214,123 sh as of Feb 21, 2026 · Form 4
24 months: $4.7M sold

Transaction history

All 11 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Feb 21, 2026	ONGroup President, PSG	Shares withheld for tax or exercise priceCode F · direct	7,788	$69.11	$538K@ $69.11	214,123	Form 4
Feb 20, 2026	ONGroup President, PSG	Shares withheld for tax or exercise priceCode F · direct	3,130	$69.11	$216K@ $69.11	221,911	Form 4
Feb 20, 2026	ONGroup President, PSG	Grant or awardCode A · direct	26,046	—	—	225,041	Form 4
Feb 17, 2026	ONGroup President, PSG	Open-market saleCode S · direct	44,263	$71.77	$3.2M@ $71.77	198,995	Form 4
Feb 17, 2026	ONGroup President, PSG	Open-market saleCode S · direct	4,597	$71.56	$329K@ $71.56	243,258	Form 4
Feb 10, 2026	ONGroup President, PSG	Shares withheld for tax or exercise priceCode F · direct	5,032	$67.38	$339K@ $67.38	247,855	Form 4
Feb 6, 2026	ONGroup President, PSG	Shares withheld for tax or exercise priceCode F · direct	9,232	$65.20	$602K@ $65.20	252,887	Form 4
Feb 5, 2026	ONGroup President, PSG	Grant or awardCode A · direct	2,581	—	—	262,119	Form 4
Feb 5, 2026	ONGroup President, PSG	Grant or awardCode A · direct	3,279	—	—	259,538	Form 4
Feb 5, 2026	ONGroup President, PSG	Grant or awardCode A · direct	23,287	—	—	256,259	Form 4
Dec 4, 2025	ONGroup President, PSG	Open-market saleCode S · direct	21,000	$55.72	$1.2M@ $55.72	232,843	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.