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ON Semiconductor SEC filings, summarized

We read every ON Semiconductor 8-K filing and insider trade the night it hits SEC EDGAR, and turn it into a two-minute plain-English summary.

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Recent filings

Form 4 · Insider TradeOctober 2, 2026

ON Semiconductor Group President sells $1.25M in stock

Gopalswamy Sudhir, Group President, AMG & ISG at ON Semiconductor, sold 15,578 shares in an open-market transaction at $80.00 per share, for approximately…

8-KOctober 1, 2026

Onsemi Cuts Synaptics Deal Price to $123 per Share in Amended Agreement

Onsemi and Synaptics amended their merger agreement on October 1, 2026, with onsemi agreeing to acquire Synaptics for $123 per share in cash, or…

8-KOctober 1, 2026

onsemi Revises Synaptics Deal to $123-Per-Share All-Cash Offer

onsemi amended its merger agreement to acquire Synaptics for $123 per share in cash, or approximately $5.7 billion, after Synaptics received an unsolicited…

8-KAugust 13, 2026

FTC Clears Onsemi-Synaptics Deal for Early Antitrust Termination

The FTC granted early termination of the Hart-Scott-Rodino waiting period on August 12, 2026, removing one antitrust-related closing condition for onsemi’s…

8-KAugust 3, 2026

onsemi reports 9% revenue growth and raises third-quarter outlook

onsemi reported second-quarter 2026 revenue of $1.604 billion for the quarter ended July 3, up 9% year over year, with GAAP diluted EPS of $0.56 and…

8-KMarch 11, 2026

ON Semiconductor ($ON): Group President Simon Keeton agreed to resign from all employment positions…

ON Semiconductor ($ON): Group President Simon Keeton agreed to resign from all employment positions effective June 30, 2026. He stepped down from officer…

8-KFebruary 9, 2026

ON Semiconductor ($ON) filed Form 8‑K (Item 9.01) furnishing Exhibit 99.1 — news release dated Feb 9, 2026…

ON Semiconductor ($ON) filed Form 8‑K (Item 9.01) furnishing Exhibit 99.1 — news release dated Feb 9, 2026 announcing financial results for Q4 and FY ended…

8-KFebruary 9, 2026

ON Semiconductor announced on Feb 9, 2026 its earnings release for Q4 and FY2025 (period ended Dec 31,…

ON Semiconductor announced on Feb 9, 2026 its earnings release for Q4 and FY2025 (period ended Dec 31, 2025); Exhibit 99.1 attached with results & related…