Riding the edge AI wave, US’s Ambiq Micro prepares for a $85 million IPO, banking on energy-efficient chips powering wearables, automation, and smart devices.
Ambiq Micro, a Texas-based developer of energy-efficient chips for edge artificial intelligence (AI), is planning to raise up to $85 million through an initial public offering (IPO) expected to price before the end of July.
According to a filing with the US Securities and Exchange Commission, Ambiq aims to sell 3.4 million common shares at a price range of $22 to $25 each. If priced at the top of that range, the company would be valued at approximately $426 million; close to its $450 million valuation following a $94.6 million funding round in 2023.
The IPO will be led by Bank of America and UBS, with shares expected to trade under the symbol “AMBQ” on the New York Stock Exchange. According to a Bloomberg report, the announcement comes as investor interest in tech IPOs shows signs of revival, with Figma and BitGo also filing on the same day.
Ambiq specialises in ultra-low-power chips for edge computing, using its proprietary subthreshold power optimised technology (SPOT) architecture. The chips are designed for use in wearables, smart home devices, industrial automation, and agricultural monitoring.
The firm claims its processors consume up to five times less energy than conventional chips and offer significant advantages for real-time AI processing on devices with limited power.
One of Ambiq’s key products, the Apollo 510 system-on-chip, currently powers Samsung’s Galaxy Watch series. Over the past year, the company reports shipping more than 270 million SPOT-based devices, with about 40% being AI-enabled.
Despite facing competition from firms like STMicroelectronics and Nordic Semiconductor, Ambiq maintains its edge through deeper subthreshold optimisation, enabling greater energy efficiency. Its collaboration with EdgeImpulse, which supports AI model deployment on low-powered chips, has further broadened its reach.
Ambiq posted a net loss of $8.3 million on $15.7 million in revenue for the quarter ending 31 March 2025, showing a slight improvement from a year earlier.
