Every Form 4 that ON Semiconductor Corp (ON) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow ON and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full ON filings page.
ON Semiconductor Corp. director Paul Anthony Mascarenas acquired 126 fully vested common shares on October 2, 2026, in lieu of part of his third-quarter 2026 cash retainers, based on an election he had previously submitted. The transaction lists $84.89 per share; his directly held common shares following the transaction totaled 57,716.
ON Semiconductor Corp reported that Sudhir Gopalswamy, its Group President, AMG & ISG, sold 15,578 common shares at $80 per share on October 1, 2026, under a Rule 10b5-1 trading plan. His reported direct holdings afterward were 158,177 shares, including 167 shares acquired under the Employee Stock Purchase Plan since his last Section 16 filing.
MASCARENAS PAUL ANTHONY reported acquisition or exercise transactions in this Form 4 filing.
ON Semiconductor director Paul Anthony Mascarenas received 116 fully vested common shares as part of his board compensation. The shares were issued in lieu of a portion of his quarterly cash retainers for the second quarter of 2026, based on his prior election. Following this grant, he directly holds 57,590 common shares of ON Semiconductor.
ON Semiconductor Group President Sudhir Gopalswamy reported a small tax-related share disposition. 470 common shares were withheld at $127 per share to cover taxes due on vesting of restricted stock units. After this, he directly holds 173,588 shares, including 115 shares acquired through the Employee Stock Purchase Plan.
Deitrich Thomas reported acquisition or exercise transactions in this Form 4 filing.
ON Semiconductor director Thomas Deitrich received a grant of 1,986 shares of common stock as restricted stock. The award was granted on May 14, 2026 under the company’s Amended and Restated Stock Incentive Plan at no cash cost to him. After this grant, he directly holds 26,060 common shares. The restricted stock will vest on the day prior to ON Semiconductor’s next Annual Meeting of Stockholders, aligning the director’s compensation with shareholder interests over that period.
WATERS GREGORY L reported acquisition or exercise transactions in this Form 4 filing.
ON Semiconductor director Gregory L. Waters reported a compensation-related stock award and updated holdings. He received 1,986 shares of restricted common stock under the company’s Amended and Restated Stock Incentive Plan at a grant price of $0.00 per share.
The restricted stock granted on May 14, 2026 will vest on the day prior to the company’s next Annual Meeting of Stockholders. Following this award, Waters directly holds 24,524 shares of ON Semiconductor common stock and indirectly holds 17,000 shares through the Waters Family Trust.
CARTER SUSAN K reported acquisition or exercise transactions in this Form 4 filing.
ON Semiconductor director Susan K. Carter received a grant of 1,986 shares of common stock as restricted stock. The award was granted under the company’s Amended and Restated Stock Incentive Plan at no cash cost per share and is part of her equity compensation. After this grant, Carter directly holds 25,638 common shares. The restricted stock will vest on the day prior to the company’s next Annual Meeting of Stockholders, tying the award to her continuing board service over that period.
Yan Christine Y reported acquisition or exercise transactions in this Form 4 filing.
ON Semiconductor director Christine Y. Yan reported an equity grant of 1,986 shares of common stock in the form of restricted stock units. The award was granted on May 14, 2026 under the company’s Amended and Restated Stock Incentive Plan and is compensation, not an open-market purchase.
The restricted stock units will vest on the day before ON Semiconductor’s next Annual Meeting of Stockholders. However, the actual issuance of the underlying shares will be deferred to a later date based on Yan’s prior deferral election. After this grant, she directly holds 48,655 common shares.
KIDDOO BRUCE E reported acquisition or exercise transactions in this Form 4 filing.
ON Semiconductor Corp director Bruce E. Kiddoo received an equity award. He was granted 1,986 shares of restricted common stock on May 14, 2026 under the company’s Amended and Restated Stock Incentive Plan. These shares will vest the day before ON’s next Annual Meeting of Stockholders.
After this award, Kiddoo directly holds 19,216 common shares. The transaction is a compensation-related grant, not an open-market purchase or sale.
MASCARENAS PAUL ANTHONY reported acquisition or exercise transactions in this Form 4 filing.
ON Semiconductor director Paul Anthony Mascarenas received an equity award of 1,986 restricted stock units (RSUs). The RSUs were granted on May 14, 2026 under the company’s Amended and Restated Stock Incentive Plan and carry no purchase price.
The award will vest on the day before ON Semiconductor’s next Annual Meeting of Stockholders, with actual share delivery deferred to a later date based on Mascarenas’s prior election. After this grant, he directly holds 57,474 shares of ON Semiconductor common stock.
ON Semiconductor’s Exec VP & CFO Thad Trent reported open‑market sales of company common stock. He sold 30,000 shares at $93.00 per share on April 23, 2026 and another 30,000 shares at $100.00 per share on April 24, 2026, for a total of 60,000 shares.
After these transactions, Trent directly owns 271,194 shares of ON Semiconductor common stock. The filing does not list any option exercises or derivative positions, indicating these were straightforward stock sales rather than part of an option exercise sequence.
ON Semiconductor Corp Executive VP & CFO Thad Trent executed an open-market sale of 30,000 shares of Common Stock on April 16, 2026 at $80.00 per share.
After this transaction, he directly holds 331,194 shares of ON Semiconductor Common Stock, which includes an additional 115 shares acquired through the company’s Employee Stock Purchase Plan since his last Section 16 filing.
MASCARENAS PAUL ANTHONY reported acquisition or exercise transactions in this Form 4 filing.
ON Semiconductor Corp director Paul Anthony Mascarenas received a grant of 168 shares of common stock valued at $62.19 per share. These fully-vested shares were issued in lieu of a portion of his quarterly cash retainers for the first quarter of 2026, based on his prior election. Following this compensation-related award, he directly holds 55,488 common shares.
ON Semiconductor Group President Sudhir Gopalswamy completed an open-market sale of 6,114 shares of common stock. The shares were sold at a price of $58.67 per share. After this transaction, he directly holds 173,943 shares, indicating he retained the vast majority of his position.
ON Semiconductor CEO & President Hassane El-Khoury reported equity compensation and related tax withholding transactions. On February 20, 2026, he acquired 75,315 shares of common stock at $0.00 per share as a grant/award acquisition, representing time-based restricted stock units that vest in three equal annual installments beginning on the first anniversary of the grant date, subject to his continued employment through each vesting date. On February 21, 2026, 36,802 shares of common stock were disposed of at $69.11 per share as a tax-withholding disposition to cover taxes due upon the vesting of restricted stock units, rather than an open-market sale. Following these transactions, he held 1,054,123 shares of ON Semiconductor common stock directly.
ON Semiconductor Group President Sudhir Gopalswamy reported equity compensation activity involving company common shares. On February 20, 2026, he acquired 31,834 shares through a grant of time-based restricted stock units, which will vest in three equal annual installments, subject to continued employment.
To cover taxes upon vesting of restricted stock units, there were tax-withholding dispositions of 1,455 shares on February 20, 2026 and 9,583 shares on February 21, 2026 at a price of $69.11 per share. After these transactions, he held 180,057 common shares directly.
ON Semiconductor’s Executive VP & CFO Thad Trent reported equity compensation activity and related tax withholding in company stock. He acquired 36,175 shares of common stock as a grant of time-based restricted stock units that vest in three equal annual installments, subject to continued employment.
To cover taxes due upon RSU vesting, a total of 14,556 common shares (10,383 shares and 4,173 shares) were disposed of as stock withheld at a price of $69.11 per share, a tax-withholding disposition rather than an open-market sale.
ON Semiconductor Group President, PSG Simon Keeton reported equity compensation and related tax share withholdings. On February 20, 2026, he acquired 26,046 shares of common stock at $0.00 per share as a grant of time-based restricted stock units that vest in three equal annual installments, subject to continued employment.
On February 20, 2026 and February 21, 2026, a total of 10,918 shares were disposed of at $69.11 per share through tax-withholding dispositions to cover taxes due upon vesting of restricted stock units, rather than open-market sales. After these transactions, he directly owned 214,123 common shares.
ON Semiconductor executive Simon Keeton reported open-market sales of 48,860 common shares. The transactions occurred on February 17, 2026 in two trades: 4,597 shares at $71.5551 and 44,263 shares at $71.7701 per share.
After these sales, Keeton directly owned 198,995 common shares. The filing classifies both trades as open-market or private sales and lists his role as Group President, PSG.
ON Semiconductor Corp director Bruce E. Kiddoo reported a bona fide gift of company stock. On 02/12/2026, he transferred 3,570 shares of ON Semiconductor common stock at a reported price of $0.0000 per share as a gift. After this disposition, he directly owned 17,230 shares of ON Semiconductor common stock.
ON Semiconductor’s Group President, PSG, Keeton Simon reported a tax-withholding share disposition related to equity compensation. On February 10, 2026, 5,032 shares of common stock were disposed of at $67.38 per share to cover taxes upon vesting of performance-based restricted stock units.
After this transaction, Simon directly beneficially owned 247,855 shares of ON Semiconductor common stock. The filing characterizes the move as a payment of tax liability using shares, rather than an open-market purchase or sale.
ON Semiconductor CEO & President Hassane El‑Khoury reported multiple share disposals. On February 10, 2026, 20,762 common shares were withheld at $67.38 to cover taxes from vesting performance-based restricted stock units. On February 12, 2026, he made open‑market sales of 100 shares at $73.56 and 19,900 shares at $73.018. After these transactions, he directly beneficially owned 1,015,610 common shares of ON Semiconductor.
ON Semiconductor Corp executive Thad Trent, the Exec VP & CFO, reported several stock transactions. On February 10, 2026, he disposed of 6,709 common shares at $67.38 per share to cover taxes owed on vesting performance-based restricted stock units.
On February 12, 2026, he executed open-market sales totaling 60,000 common shares in multiple trades, including 1,300 shares at a weighted average of $71.7031, 2,200 at $73.3936, 7,000 at $72.8766, and 49,500 at $70.8719. After these transactions, he directly owned 339,460 common shares of ON Semiconductor Corp.
ON Semiconductor Corp executive reports tax-related share withholding. Group President, AMG & ISG, Sudhir Gopalswamy reported a disposition of 6,191 shares of ON common stock on February 10, 2026, at a value of $67.38 per share. The filing explains these shares were withheld to cover taxes due upon the vesting of performance-based restricted stock units, rather than sold in the open market. After this transaction, Gopalswamy directly beneficially owned 159,261 shares of ON common stock.
ON Semiconductor Group President Sudhir Gopalswamy reported multiple equity compensation transactions in ON common stock. On February 5, 2026, he acquired 23,287, 2,581, 1,239 and 401 shares at $0.0000 per share, reflecting performance-based restricted stock units that were earned based on company performance. These units have vesting schedules extending through February 2026, subject to his continued employment. On February 6, 2026, 6,041 shares were withheld at $65.20 per share to cover taxes due on the vesting. After these transactions, he directly owned 165,452 ON shares, including 402 shares acquired through the employee stock purchase plan.
ON Semiconductor Group President, PSG Simon Keeton reported multiple equity-related transactions. On February 5, 2026, he acquired 23,287, 3,279 and 2,581 common shares at $0.00 per share as performance-based restricted stock units that were earned under awards originally granted in 2023, 2024 and 2025.
These units vest over time, including three annual installments beginning February 10, 2026 and specific vesting on February 6, 2026 for two grants, contingent on continued employment. On February 6, 2026, 9,232 shares were withheld at $65.20 per share to cover taxes upon vesting, leaving him with 252,887 directly held shares, including 129 acquired through the employee stock purchase plan.
ON Semiconductor (ON) executive vice president and CFO Thad Trent updated his shareholdings through performance-based stock vesting and tax withholding transactions. On February 5, 2026, he acquired 31,050, 4,371, and 3,441 common shares at $0.0000 per share from performance-based restricted stock unit awards that were earned based on company performance, with future vesting schedules extending to February 2026 and beyond.
On February 6, 2026, 12,270 shares at $65.20 per share were withheld to cover taxes due upon vesting. After these transactions, he directly beneficially owned 406,169 common shares, including 129 shares acquired under the employee stock purchase plan since his prior filing.
ON Semiconductor CEO and President Hassane El-Khoury reported equity award activity and tax withholding transactions. On February 5, 2026, he received three grants of common stock: 90,966, 12,202, and 9,604 shares at $0.0000 per share, representing performance-based restricted stock units earned under awards originally granted in 2023, 2024, and 2025. Portions of these awards vest on February 6, 2026, and in three annual installments beginning February 10, 2026, subject to continued employment. On February 6, 2026, 34,460 shares were withheld at $65.2 per share to cover taxes upon vesting. Following these transactions, he directly beneficially owned 1,056,372 common shares, including 246 shares acquired through the employee stock purchase plan.