Ambiq Micro (AMBQ) upsized its IPO at pricing to 4 million shares – up from 3.4 million shares – and priced the IPO at $24.00 – $1.00 below the top of its $22.00-to-$25.00 price range – to raise $96.0 million on Tuesday night, July 29, 2025. Ambiq Micro’s stock scored a moonshot in its NYSE debut. Ambiq Micro’s stock doubled in its New York Stock Exchange debut – climbing above $48.00 – or a little more than twice its $24.00 IPO price – at around 1:18 p.m. EDT after opening at $38.00 early Wednesday afternoon, July 30, 2025. (Editor’s Note: This column, published Tuesday night, July 29, 2025, was updated at midday on Wednesday, July 30, with news of Ambiq Micro’s debut on the NYSE.)
BofA Securities and UBS Investment Bank were the joint book-runners.
Ambiq Micro’s IPO attracted strong interest from retail investors who like its story as a company focused on cutting the energy use of tech devices and AI computing at the edge – often in the devices themselves.
Arm Holdings (ARM) is among Ambiq Micro’s shareholders.
Ambiq Micro (AMBQ), based in Austin, Texas, said in the prospectus that its ultra-low-power semiconductor solutions platform – known as SPOT – will cut power consumption of battery-operated and wireline-driven devices alike.
Ambiq’s IPO comes at a time when the company is facing a lot of competition and it’s focused on repositioning its business from being overly dependent on mainland China. In 2024, half of its sales were to mainland China – and that’s perceived as a risk.
In the prospectus, Ambiq Micro said:
“Our customers rely on Ambiq to deliver AI compute closer to end users (edge environments) where power consumption challenges are the most severe. Our leading position is built upon our hardware and software innovations that deliver two to five times lower power consumption than traditional semiconductor designs.
“Our products power over 270 million devices today,” Ambiq Micro said in the prospectus. “We shipped more than 42 million units in 2024, and we estimate that over 40 percent of them ran AI algorithms. We seek to drive growth in AI adoption at the edge in the personal devices, medical/healthcare, industrial edge, and smart home and building markets, and (we) continue to set new standards in edge AI performance and power efficiency. Over time, we expect to integrate our ultra-low power technology into additional chip products that benefit from greater power efficiency, including high-performance compute applications such as AI data centers and automotive.”
Ambiq Micro (AMBQ) is not profitable, according to the financial statements in the prospectus. For the 12 months that ended March 31, 2025, Ambiq Micro (AMBQ) reported a net loss of $38.6 million on revenue of $76.6 million.
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