0001097864 2026-08-21 2026-08-21 0001097864 1 2026-08-21 2026-08-21 shares iso4217:USD pure iso4217:USD shares S-4 S-4 ON SEMICONDUCTOR CORPORATION false Equity Common Stock (par value of $0.01 per share) true 61448587 4522160743.85 0.0001381 624510.4 4522160743.85 624510.4 0 0 624510.4 <table style="font-size: 12pt; border-spacing: 0px; border-collapse: collapse; width: 100%;"> <tr style="height: 0px; font-size: 0px;"><td style="width: 1%;"> </td><td style="width: 99%;"> </td></tr><tr style="vertical-align: top;"> <td style="padding: 0px 0pt;"> <div style="margin-bottom: 4pt;"> <span style="font-size: 10.0pt;">(1)</span> </div> </td> <td style="padding: 0px 5.4pt; text-align: left;"> <div style="margin-bottom: 4pt;"> <span style="font-size: 10.0pt;">Rule 457(f) Fee Calculation Details<br/><br/>This registration statement relates to the registration of the maximum number of shares of common stock, par value $0.01 per share, of ON Semiconductor Corporation (“onsemi” and such common stock, “onsemi Common Stock”) estimated to be issuable by onsemi pursuant to the merger described in this registration statement and the Agreement and Plan of Reorganization, dated as of June 25, 2026 (as may be amended, restated, supplemented or otherwise modified from time to time, the “Merger Agreement”), by and among onsemi, Sonic Acquisition Corp. and Synaptics Incorporated (“Synaptics”).<br/><br/>The amount in the “Amount Registered” column represents the maximum number of shares of onsemi Common Stock estimated to be issuable at the effective time (as defined in this registration statement). The number of shares of onsemi Common Stock being registered is based on: (1) 56,684,018, which represents (a) the maximum number of shares of common stock, par value $0.001 per share, of Synaptics (“Synaptics Common Stock”) estimated to be outstanding immediately prior to the merger described in this registration statement and in the Merger Agreement (calculated as the sum of an estimate of the maximum number of shares of Synaptics Common Stock outstanding as of August 20, 2026, and the number of shares of Synaptics Common Stock issuable or expected to be issued, converted or exchanged (including in respect of Synaptics’ equity awards (including Company Accelerated RSUs, Company Accelerated PSUs and Company Accelerated MSUs, in each case as defined in the Merger Agreement)) in connection with the merger), multiplied by (b) the exchange ratio of 1.350 shares of onsemi Common Stock for each share of Synaptics Common Stock entitled to receive onsemi Common Stock in the merger; and (2) 4,764,569, which represents (a) the maximum number of shares of Synaptics Common Stock issuable in respect of Company Converted RSUs, Company Converted PSUs and Company Converted MSUs (in each case, as defined in the Merger Agreement), multiplied by (b) the exchange ratio of 1.350.<br/><br/>The “Maximum Aggregate Offering Price” is estimated solely for the purpose of calculating the registration fee required by Section 6(b) of the Securities Act (as defined in this registration statement) and calculated in accordance with Rules 457(c), 457(f)(1) and 457(f)(3) under the Securities Act, based on $4,522,160,743.85, the market value of the estimated maximum number of shares of Synaptics Common Stock that may be canceled and exchanged in the merger (as set forth in the preceding paragraph), as established by the average of the high and low sales prices of Synaptics Common Stock on Nasdaq (as defined in this registration statement) on August 20, 2026, of $99.35.</span> </div> </td> </tr> </table><table style="border-spacing: 0px; border-collapse: collapse; margin-left: -0.25pt; width: 100%; font-size: 10pt;"> <tr style="height: 0px; font-size: 0px;"><td style="width: 17%;"> </td><td style="width: 15%;"> </td><td style="width: 17%;"> </td><td style="width: 17%;"> </td><td style="width: 17%;"> </td><td style="width: 17%;"> </td></tr> <tr style="vertical-align: top;"> <td style="padding: 2pt 1.25pt 1.75pt 5.4pt; border-width: 1pt; border-style: solid; border-color: black; vertical-align: bottom; text-align: center;"> <div> <b style="letter-spacing: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">Amount of Securities to be Received or Cancelled</b> </div> </td> <td style="border-width: 1pt; border-style: solid; border-color: black; padding: 2pt 1.25pt 1.75pt 1px; vertical-align: bottom; text-align: center; height: 11pt;"><b>Value per Share of Securities to be Received or Cancelled</b> </td> <td style="border-width: 1pt; border-style: solid; border-color: black; padding: 2pt 1.25pt 1.75pt 1px; vertical-align: bottom; text-align: center; height: 11pt;"><b>Total Value of Securities to be Received or Cancelled</b> </td> <td style="border-width: 1pt; border-style: solid; border-color: black; padding: 2pt 1.25pt 1.75pt 1px; vertical-align: bottom; text-align: center; height: 11pt;"><b>Cash Consideration Received by the registrant</b> </td> <td style="border-width: 1pt; border-style: solid; border-color: black; padding: 2pt 1.25pt 1.75pt 1px; vertical-align: bottom; text-align: center; height: 11pt;"><b>Cash Consideration (Paid) by the registrant</b> </td> <td style="border-width: 1pt; border-style: solid; border-color: black; padding: 2pt 1.25pt 1.75pt 1px; vertical-align: bottom; text-align: center; height: 11pt;"><b>Maximum Aggregate Offering Price</b> </td> </tr> <tr style="vertical-align: top; background-color: rgb(204, 238, 255);"> <td style="padding: 2pt 1.25pt 1.75pt 5.4pt; border-width: 1pt; border-style: solid; border-color: black; vertical-align: bottom; text-align: center;"> <div> 45,517,471 </div> </td> <td style="border-width: 1pt; border-style: solid; border-color: black; padding: 2pt 1.25pt 1.75pt 1px; vertical-align: bottom; text-align: center; height: 11pt;">$99.35</td> <td style="border-width: 1pt; border-style: solid; border-color: black; padding: 2pt 1.25pt 1.75pt 1px; vertical-align: bottom; text-align: center; height: 11pt;"><span style="letter-spacing: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;"><span style="text-decoration-thickness: initial; float: none; display: inline !important;">$4,522,160,743.85</span></span></td> <td style="border-width: 1pt; border-style: solid; border-color: black; padding: 2pt 1.25pt 1.75pt 1px; vertical-align: bottom; text-align: center; height: 11pt;"> </td> <td style="border-width: 1pt; border-style: solid; border-color: black; padding: 2pt 1.25pt 1.75pt 1px; vertical-align: bottom; text-align: center; height: 11pt;"> </td> <td style="border-width: 1pt; border-style: solid; border-color: black; padding: 2pt 1.25pt 1.75pt 1px; vertical-align: bottom; text-align: center;"><span style="letter-spacing: normal; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; float: none; display: inline !important;"><span style="text-decoration-thickness: initial; float: none; display: inline !important;">$4,522,160,743.85</span></span></td> </tr> </table> 45517471 99.35 4522160743.85 4522160743.85 N/A N/A 0001097864 EX-FILING FEES