X0306 4 2016-03-25 0001097864 ON SEMICONDUCTOR CORP ON 0001558921 GUTMANN BERNARD 5005 EAST MCDOWELL ROAD PHOENIX AZ 85008 1 Exec VP & CFO Common 2016-03-25 4 F 0 2538.0000 9.3900 D 371486.0000 D Common 2016-03-25 4 F 0 3966.0000 9.3900 D 367520.0000 D This disposition transaction represents shares withheld by the Issuer pursuant to the Reporting Person's 2013 PBRSU Award and related award agreements. On March 25, 2016, certain of these units vested. The shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of Reporting Person. This disposition transaction represents shares withheld by the Issuer in connection with the March 25, 2013 restricted stock units award to the Reporting Person under the Issuer's Amended and Restated Stock Incentive Plan. On March 25, 2016, certain of these units vested. These shares were withheld to satisfy the Reporting Person's withholding obligations for various taxes and similar items. The Issuer will pay these taxes on behalf of the Reporting Person. Mark N. Rogers, Attorney-in-Fact 2016-03-29