Ambiq Micro, a developer of ultra‑low‑power semiconductor solutions for edge AI, announced a secondary public offering of 2,200,000 shares of common stock. The offering consists of 2,157,051 shares sold directly by the company and 42,949 shares sold by existing shareholders. An option for underwriters to purchase up to 330,000 additional shares within 30 days is included.
BofA Securities and UBS Investment Bank are joint lead book‑running managers, with Needham & Company and Stifel as joint book‑running managers. The offering is priced at the public offering price, subject to market conditions and underwriting discounts and commissions. The registration statement on Form S‑1 has been filed with the SEC but has not yet become effective, so the shares cannot be sold until the registration becomes effective.
Ambiq expects the proceeds from its direct share sale to raise approximately $70 million, while the shares sold by existing shareholders will not generate proceeds for the company. The capital raised will be deployed to accelerate the development and commercialization of its Apollo and Atomiq product lines, expand sales and marketing efforts, and invest in research and development. Management highlighted that the funding will support the company’s strategy to capture growth in the edge AI market, where demand for ultra‑low‑power solutions is projected to reach $66.47 billion by 2030.
The announcement follows Ambiq’s Q3 2025 earnings, in which the company reported net sales of $18.2 million, a 10.4% decline year‑over‑year but an increase from the $17.9 million reported in Q2 2025. Non‑GAAP gross margin expanded to 44.8% from 42.7% in the prior quarter, driven by a shift toward higher‑margin customers and a more favorable product mix. Management emphasized that the margin improvement reflects disciplined cost management and the successful execution of its high‑value customer strategy.
Ambiq’s guidance for Q4 2025 remains unchanged, with expected net sales of $18.5 – $19.5 million, the highest quarterly revenue of 2025. The company reiterated its confidence in maintaining profitability while investing in the next generation of edge AI chips, including the Atomiq SoC with an integrated neural processing unit announced at CES 2026. The offering provides a buffer for continued investment in R&D and helps the company navigate the competitive landscape dominated by larger semiconductor players.
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