Altera files confidentially for initial public offering backed by Silver Lake and Intel

Altera, the San Jose-based maker of programmable logic devices, has quietly filed for an initial public offering with the SEC, setting the stage for what could become one of the bigger semiconductor market debuts in recent years.

The confidential filing, dated September 15, 2026, doesn’t yet reveal a share count or price range. But the offering could raise north of $2B, putting it in the same weight class as recent blockbuster chip IPOs like Arm Holdings and Cerebras.

From Intel subsidiary to standalone contender

Founded in 1983, the company built its reputation on field-programmable gate arrays, the Swiss Army knives of the semiconductor world. These chips can be reprogrammed after manufacturing, making them invaluable for data centers, telecom infrastructure, aerospace, and industrial automation.

Intel acquired Altera in 2015 for roughly $16.7B. In September 2025, Silver Lake acquired a controlling 51% stake in Altera for $4.46B, valuing the entire company at $8.75B. Intel retained the remaining 49%.

Growth numbers that caught Wall Street’s attention

CEO Raghib Hussain has been painting an aggressive growth picture. Revenue grew by more than 20% in the year prior, and Hussain has projected mid-20% revenue growth for 2026.

Silver Lake has assembled a heavyweight roster of underwriters: Barclays, Citi, JPMorgan, and Morgan Stanley are all lined up to manage the offering.

What the IPO means for the semiconductor landscape

Silver Lake’s playbook here is textbook private equity: acquire a controlling stake at a discount, install competent leadership, grow the top line, and exit through a public offering at a significantly higher valuation. If the IPO prices anywhere near or above the $8.75B valuation from the September 2025 deal, Silver Lake stands to make a tidy return on its $4.46B investment in just about a year.

For Intel, the company’s 49% stake means it still has significant exposure to Altera’s upside. A successful IPO could provide Intel with a liquid, publicly traded asset it could eventually sell down to raise cash for its own struggling foundry ambitions.

The FPGA market is competitive, with Xilinx (now owned by AMD) representing a formidable rival. The confidential filing means Altera can test investor appetite and refine its prospectus before making anything public.

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