greeksoup/ stock research
Stock research / United States / ON / Planned sales

ON Semiconductor Corp. planned insider sales

In the last twelve months insiders at ON Semiconductor Corp. filed 14 Form 144 notices of planned sales, 371,765 shares worth $31.2 million at the time of filing, from 6 sellers. The latest, filed 1 October 2026: Gopalswamy Sudhir (officer), 15,578 shares worth $1.2 million, planned for around 1 October 2026 through Rockefeller Capital Management.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
1 October 2026Gopalswamy SudhirOfficer15,578$1.2 million1 October 202615,578 shares from 1 October 2026Rockefeller Capital ManagementStock AwardForm 144
10 June 2026Alan CampbellDirector16,660$1.8 million10 June 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
3 June 2026Keeton SimonOfficer19,902$2.6 million3 June 2026No matching Form 4 saleRockefeller Capital ManagmentStock AwardForm 144
15 May 2026Alan CampbellDirector22,188$2.5 million15 May 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
11 May 2026Simon KeetonOfficer31,463$3.3 million11 May 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesEmployee Stock Purchase Plan; Performance Shares; Restricted StockForm 144
24 April 2026Thad TrentOfficer30,000$2.9 million24 April 202660,000 shares from 23 April 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock Units and Performance Stock UnitsForm 144
23 April 2026Thad TrentOfficer30,000$2.7 million23 April 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock Units and Performance Stock UnitsForm 144
16 April 2026Thad TrentOfficer30,000$2.2 million16 April 202630,000 shares from 16 April 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock Units and Performance Stock UnitsForm 144
13 March 2026Gopalswamy SudhirOfficer6,114$358,70813 March 20266,114 shares from 13 March 2026Rockefeller Capital ManagementStock AwardForm 144
17 February 2026Simon KeetonOfficer48,860$3.5 million17 February 202648,860 shares from 17 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesEmployee Stock Purchase Plan; Performance Shares; Restricted StockForm 144
12 February 2026El-Khoury Living TrustOfficer, Director20,000$1.5 million12 February 202620,000 shares from 12 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted stock vesting under a registered planForm 144
12 February 2026Thad TrentOfficer60,000$4.3 million12 February 202660,000 shares from 12 February 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted Stock Units and Performance Stock UnitsForm 144
4 December 2025Simon KeetonOfficer21,000$1.2 million4 December 202521,000 shares from 4 December 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesPerformance SharesForm 144
3 December 2025Thad TrentOfficer20,000$1.1 million3 December 202520,000 shares from 3 December 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesPerformance Stock UnitsForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?