Ambiq Micro Doubles Sales to $38.1 Million on Edge AI Demand

Ambiq Micro reported third-quarter net sales of $38.1 million, up 110 percent from a year earlier, and guided to $43.5 million to $44.5 million for the fourth quarter as demand for edge AI hardware accelerates. The Austin-based company, which sells ultra-low-power processors for wearables, health devices and other battery-constrained products, also widened its GAAP gross margin to 46.7 percent from 42.3 percent a year ago, according to its Nov. 10 earnings release.

The numbers mark the strongest quarter yet for a company that went public in 2025. Sales rose 12.5 percent sequentially from $33.9 million in the second quarter. For the first nine months of the year, revenue reached $97.1 million, nearly double the $51.8 million recorded in the same period a year earlier. Sales have now risen for six consecutive quarters, the company said.

What did the P&L show?

GAAP gross profit rose 132 percent year over year to $17.8 million. The net loss narrowed to $7.1 million, or $0.29 a share, from $9.0 million, or $0.72 a share, a year earlier. The per-share comparison is distorted by share count: Ambiq had fewer shares outstanding before and around its 2025 IPO.

Not everything moved in the right direction. Operating expense grew faster than sales on a sequential basis, up 16 percent to $27.9 million, driven largely by research and development spending that rose to $16.3 million from $8.9 million a year earlier. A company that nearly doubles revenue while R&D spending almost doubles with it is telling investors where it believes the next product cycle comes from.

$ millions	Q3 2026	Q2 2026	Q3 2025
Net sales	38.1	33.9	18.2
Gross margin	46.7%	45.0%	42.3%
Operating expense	27.9	24.0	17.7
Net loss	(7.1)	(7.1)	(9.0)
Loss per share	($0.29)	($0.32)	($0.72)

How broad is the customer base?

Seven customers each generated more than $1 million of quarterly sales, up from three a year earlier. Ambiq said its active customer base grew about 50 percent year over year. That diversification matters more than the headline growth rate, because a revenue base concentrated in a handful of wearable makers is vulnerable to single-product cycles.

One caveat: Ambiq did not break out how much revenue comes from AI workloads specifically. The company attributes its growth to edge AI demand, but the disclosure does not separate AI-driven sales from the rest of the portfolio. Investors are being asked to take the edge AI framing on faith, supported only by the aggregate figures.

What does the balance sheet look like?

Cash rose to $363.5 million at Sept. 30, up from $140.3 million at the end of 2025. The increase came mainly from $245.5 million of net proceeds from follow-on stock offerings, not operations. The company remains loss-making. Inventories also rose, to $30.1 million from $16.9 million, a build that could reflect anticipation of demand or a warning sign if fourth-quarter shipments disappoint.

What is the fourth-quarter guidance?

For the quarter ending Dec. 31, Ambiq guided to net sales of $43.5 million to $44.5 million. The midpoint would be about 15 percent above the third quarter and more than double the $20.7 million reported for the fourth quarter of 2025.

On margins, the company expects non-GAAP gross margin roughly flat with the third quarter's 48.7 percent. It said manufacturing efficiencies and product mix should offset rising supply chain costs. That claim deserves scrutiny: supply chain costs are rising across the industry, and Ambiq is counting on internal execution to absorb them without a margin hit.

Non-GAAP operating expense is guided to $25.5 million to $26.5 million, including tape-out costs for two new chips, the Atomiq110 and the Apollo340. Ambiq expects a non-GAAP net loss of $0.03 to $0.09 a share on about 24.6 million shares.

What did the CEO say?

CEO Fumihide Esaka tied the outlook directly to edge AI momentum. "With demand for edge AI accelerating, we expect to deliver a meaningful step-up in net sales in the fourth quarter and another year of strong growth in 2027," Esaka said.

The promise covers 2027, but the disclosure does not quantify it. No full-year revenue target, no margin trajectory, no timeline for reaching profitability. The gap between confident language and thin guidance is the defining feature of this earnings release.

On the software side, Ambiq released heliaPROFILER and heliaAOT 1.0 during the quarter. The company counts these as the seventh launch or major release this year in its HELIA AI software line, a cadence that suggests the company is investing in the tooling layer around its silicon, not just the chips themselves.

What happens next?

The fourth quarter will test whether the guidance holds. Ambiq must convert rising inventories into shipments, absorb supply chain costs against a flat margin target, and fund two chip tape-outs while still losing money on a non-GAAP basis. The company has the cash cushion to do it, with $363.5 million on hand; what it does not yet have is a quarter of GAAP profitability, and it gave no date for one.