X0306 4 2022-05-26 0001097864 ON SEMICONDUCTOR CORP ON 0001195562 DELFASSY GILLES 5005 EAST MCDOWELL ROAD PHOENIX AZ 85008 1 Common 2022-05-26 4 A 0 3624.0000 0.0000 A 55667.0000 D Represents restricted stock granted under the Issuer's Amended and Restated Stock Incentive Plan on May 26, 2022. The stock will vest on the day prior to the Issuer's next Annual Meeting of Stockholders. Pamela L. Tondreau is signing on behalf of the Reporting Person pursuant to a Power of Attorney attached hereto as Exhibit 24. /s/ Pamela L. Tondreau, Attorney-in-Fact 2022-05-27