Welcome to our dedicated page for On Semiconductr SEC filings (Ticker: ON), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The SEC filings page for onsemi (ON) provides direct access to the company’s regulatory disclosures as ON Semiconductor Corporation, a Nasdaq-listed semiconductor and related device manufacturer. These documents include current reports on Form 8-K, annual reports on Form 10-K, quarterly reports on Form 10-Q, and other materials that together describe the company’s financial condition, risk factors, capital allocation, and strategic initiatives in intelligent power and sensing technologies.
Recent 8-K filings illustrate how onsemi uses SEC reports to communicate material events. Examples include announcements of quarterly financial results, descriptions of restructuring and cost reduction initiatives with associated non-cash impairment and accelerated depreciation charges on manufacturing assets, and details of material definitive agreements such as the Master Framework Agreement related to Vcore power technologies from Aura Semiconductor. Filings also cover governance developments, including changes in Board leadership, and provide furnished earnings releases that outline segment revenue, margins, and cash flow.
For investors analyzing ON stock, these filings are central to understanding how onsemi is aligning its manufacturing footprint with anticipated long-term needs, expanding its power management portfolio for AI data centers, and managing capital through share repurchase programs. Forms 10-K and 10-Q discuss risk factors, the cyclical nature of the semiconductor industry, and other considerations that can affect results in automotive, industrial, AI data center, and advanced imaging markets.
On Stock Titan, SEC documents for onsemi are updated from EDGAR and paired with AI-powered summaries that highlight key points from lengthy filings such as 10-Ks and 10-Qs. Users can quickly see the main themes in each report, track material 8-K events, and review disclosures related to transactions, restructuring, and other significant corporate actions, without reading every page in detail.
ON Semiconductor Corp Schedule 13G: Vanguard Capital Management reports beneficial ownership of 29,575,202 shares of Common Stock, representing 7.50% of the class. The filing shows sole dispositive power over 29,575,202 shares and sole voting power for 3,942,003 shares. The filing identifies affiliated Vanguard investment entities and states the holdings include securities held for Vanguard funds and managed accounts.
ON Semiconductor Corp is reported as having 20,112,107 shares beneficially owned by Vanguard Portfolio Management, representing 5.10% of the outstanding common stock as of 03/31/2026. The filing states Vanguard has sole dispositive power over all 20,112,107 shares and sole voting power over 49,547 shares. The Schedule 13G discloses ownership on behalf of Vanguard funds and managed accounts; signature is dated 04/29/2026.
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.
Thad Trent reported multiple Rule 144 sales of Common Stock under pre-arranged 10b5-1 plans. The filing lists sales of 30,000 shares on 04/23/2026 for $2,790,000, 30,000 shares on 04/16/2026 for $2,400,000, and 60,000 shares on 02/12/2026 for $4,272,975. Securities originate from RSUs and PSUs with a grant date of 02/15/2022.
Morgan Stanley Smith Barney LLC submitted a Form 144 notice relating to proposed sales of Common shares tied to previously issued Restricted Stock Units and Performance Stock Units. The filing lists a 30,000-share 10b5-1 sale on 04/16/2026 for $2,400,000.00 and a 60,000-share 10b5-1 sale on 02/12/2026 for $4,272,975.00.
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.
Thad Trent filed a Form 144 proposing the sale of 30,000 shares of common stock in connection with a brokered transaction. The filing cites Restricted Stock Units and Performance Stock Units dated 02/15/2022 totaling 30,000 shares. The record also shows a 10b5-1 sale of 60,000 shares on 02/12/2026 for $4,272,975.
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 Corporation (onsemi) is asking stockholders to vote at its 2026 annual meeting on four items: electing seven directors, an advisory say‑on‑pay vote, ratifying PricewaterhouseCoopers as auditor for 2026, and a stockholder proposal on simple majority voting.
The proxy highlights 2025 results, including $6.0 billion in revenue, with Power Solutions, Analog and Mixed-Signal, and Intelligent Sensing generating 47%, 38% and 15% of revenue. Aerospace, defense and security revenue grew 70% year over year. onsemi generated $1.8 billion of cash from operations and $1.4 billion of free cash flow, achieving a record 24% free cash flow margin and returning 100% of annual free cash flow to stockholders through share repurchases.
The company reports GAAP operating income of $84.2 million, non‑GAAP operating income of $1.1 billion, GAAP gross margin of 33.1% and non‑GAAP gross margin of 38.4%. GAAP diluted EPS was $0.29 and non‑GAAP diluted EPS was $2.35. The proxy also details governance practices, ESG initiatives, and a pay‑for‑performance executive compensation program, including performance‑based equity and clawback policies.