STMicroelectronics N.V. filed a Form 6-K on October 29, 2026, enclosing a press release announcing its financial results for the third quarter ended September 26, 2026.

Key Highlights

  • Net revenues of $3.76 billion for Q3 2026, up 17.9% year-over-year and up 7.7% sequentially, according to the filing.
  • Gross margin of 37.3%, an increase of 410 basis points year-over-year, with the company attributing the improvement mainly to lower unused capacity charges and better product mix.
  • U.S. GAAP operating income of $367 million (9.8% operating margin), compared to $180 million in Q3 2025; non-U.S. GAAP operating income was $429 million (11.4% margin).
  • Net income of $291 million, or $0.31 diluted earnings per share; non-U.S. GAAP net income was $344 million, or $0.37 diluted EPS.
  • Free cash flow of $351 million (non-U.S. GAAP) in Q3 2026, compared to $130 million in Q3 2025.
  • Q4 2026 outlook mid-point calls for net revenues of $4.15 billion and gross margin of approximately 39.0%, including about 40 basis points of unused capacity charges.
  • $750 million convertible bonds were fully converted by bondholders following ST's exercise of a call option for early redemption, with ST settling on a net-share basis.

STMicroelectronics Q3 2026 Results: Segment Performance and Balance Sheet Detail

According to the filing, STMicroelectronics (NYSE:STM) reported total net revenues of $3,757 million for the third quarter ended September 26, 2026, with year-over-year net sales to OEMs and Distribution increasing 10.2% and 38.8%, respectively. The company disclosed that revenues came in 150 basis points above the mid-point of its prior guidance range. Gross profit totaled $1.40 billion, a 32.2% year-over-year increase. Operating income included $55 million in impairment, restructuring charges and other related phase-out costs, as well as $7 million in purchase price allocation effects from the acquisition of NXP's MEMS sensor business.

By reportable segment, the filing showed the RF Optical Communications (RFOC) segment delivered the strongest year-over-year revenue growth at 46.2%, with operating profit rising 131.2% to $132 million and an operating margin of 26.2%. The Embedded Processing (EMP) segment reported 24.1% revenue growth, driven mainly by General Purpose MCU, with operating profit up 74.2% to $280 million. The Analog products, MEMS and Sensors (AM&S) segment grew revenues 8.8%, while its operating margin declined to 14.1% from 15.4%. The Power and Discrete products (P&D) segment reported an operating loss of $81 million, compared to a loss of $67 million in the year-ago quarter.

On the balance sheet, the filing reported inventory of $3.25 billion at quarter-end, with days sales of inventory at 126 days. Net cash from operating activities was $1.02 billion in Q3 2026. ST's net financial position (non-U.S. GAAP) was $2.11 billion as of September 26, 2026, reflecting total liquidity of $5.31 billion and total financial debt of $3.21 billion. During the quarter, the company paid $83 million in cash dividends and executed a $91 million share buyback. The company's full-year 2026 revenue outlook mid-point stands at approximately $14.5 billion, representing a 22.8% year-over-year increase, according to the filing.

What Was Disclosed

STMicroelectronics disclosed its Q3 2026 U.S. GAAP and non-U.S. GAAP financial results via a Form 6-K, covering revenues, margins, segment performance, cash flow, balance sheet, and a Q4 2026 business outlook, all as of or for the quarter ended September 26, 2026.