Insider Trading January 28, 2026

Ambiq Micro Director Sells $241,800 in Stock as Company Prices Upsized Offering and Unveils Edge AI Chip

Director Joseph A. Tautges disposes of 7,800 shares; Ambiq prices 2.68M-share offering at $31 and reports modest revenue growth alongside a new ultra-low power AI SoC

By Caleb Monroe AMBQ
Ambiq Micro Director Sells $241,800 in Stock as Company Prices Upsized Offering and Unveils Edge AI Chip
AMBQ

Ambiq Micro director Joseph A. Tautges sold 7,800 shares on January 26, 2026, for $31.00 apiece, totaling $241,800. The transaction leaves Tautges with 48,746 shares. Separately, Ambiq priced an upsized public offering at $31.00 per share for 2,679,600 shares, expected to generate about $81.7 million in gross proceeds. The company posted third-quarter 2025 revenue of $18.2 million, a 1.6% sequential increase and ahead of Stifel’s $17.8 million estimate, and reported a net GAAP loss per share of ($0.22), $0.10 better than Stifel’s projection. Stifel maintained a Buy rating with a $40 target, citing robust wearables demand. Ambiq also introduced the Atomiq system-on-chip for edge AI, delivering over 200 GOPS and incorporating the Arm Ethos-U85 NPU.

Key Points

  • Ambiq priced an upsized 2,679,600-share offering at $31.00, expected to raise about $81.7 million in gross proceeds - impacts corporate finance and equity holders.
  • Q3 2025 revenue of $18.2 million represented a 1.6% sequential increase and beat Stifel’s $17.8 million estimate; GAAP loss per share was ($0.22), $0.10 better than expected - relevant to investor earnings expectations.
  • Ambiq introduced the Atomiq SoC for edge AI delivering over 200 GOPS and integrating the Arm Ethos-U85 NPU - relevant to semiconductor, AI hardware, and wearable device markets.

Insider transaction

Director Joseph A. Tautges of Ambiq Micro, Inc. (AMBQ) sold 7,800 shares of the company's common stock on January 26, 2026, at $31.00 per share. The sale generated $241,800 in proceeds. After the disposition, Tautges directly holds 48,746 shares of Ambiq Micro.


Capital raise details

Ambiq Micro also announced the pricing of an upsized public offering at $31.00 per share. The offering comprises 2,679,600 shares of common stock and is expected to bring in approximately $81.7 million in gross proceeds for the company.


Quarterly results and analyst view

For the third quarter of fiscal 2025, Ambiq reported revenue of $18.2 million, representing a 1.6% increase from the prior quarter. That top-line result exceeded Stifel’s estimate of $17.8 million. On the profitability front, Ambiq posted a net GAAP loss per share of ($0.22), which was $0.10 better than the loss projected by Stifel. Stifel reiterated a Buy rating on Ambiq Micro stock and maintained a $40 price target, pointing to strong demand from wearables customers as a supporting factor in its coverage.


Product development - Atomiq SoC

Ambiq unveiled its new Atomiq system-on-chip, aimed at edge AI applications with an emphasis on ultra-low power consumption. The Atomiq chip is described as delivering over 200 GOPS of on-device AI performance and integrates the Arm Ethos-U85 neural processing unit.


What this collection of moves represents

Taken together, the insider sale, the upsized offering, the quarterly results, the analyst commentary, and the Atomiq product launch outline a period of active financing and product development for Ambiq Micro. The company’s financial metrics show a slight sequential revenue increase and a smaller-than-expected GAAP loss per share, while management has sought additional capital via the priced offering. Stifel’s maintained Buy rating and $40 target, backed by wearable customer demand, is explicitly cited in the company’s reported results and commentary.


Summary points

  • Director Joseph A. Tautges sold 7,800 shares on January 26, 2026, at $31.00 per share, netting $241,800 and leaving him with 48,746 shares.
  • Ambiq priced an upsized public offering of 2,679,600 shares at $31.00 each, expected to raise about $81.7 million in gross proceeds.
  • Q3 2025 revenue was $18.2 million, up 1.6% sequentially and above Stifel’s $17.8 million estimate; GAAP loss per share was ($0.22), $0.10 better than Stifel’s estimate.
  • Ambiq introduced the Atomiq SoC for edge AI, offering over 200 GOPS and incorporating the Arm Ethos-U85 NPU.

Key points

  • Corporate finance activity - The upsized offering at $31.00 per share is expected to provide roughly $81.7 million in gross proceeds, affecting Ambiq’s capital structure and market liquidity.
  • Product and market focus - The Atomiq SoC emphasizes Ambiq’s push into ultra-low power edge AI, relevant to semiconductor and AI hardware markets as well as wearable device customers.
  • Analyst support and demand signal - Stifel’s reiterated Buy rating and $40 target references demand from wearables customers as a positive factor for the company’s outlook.

Risks and uncertainties

  • Share dilution - The upsized public offering of 2,679,600 shares could dilute existing equity holders, an outcome tied directly to the offering as described.
  • Ongoing GAAP losses - The company reported a net GAAP loss per share of ($0.22) for Q3 2025, indicating that Ambiq remains unprofitable on a GAAP basis.
  • Customer concentration - Stifel’s commentary highlights strong demand from wearables customers; reliance on this demand is an explicit factor mentioned by the analyst.

Note: The facts in this report are limited to the company-reported figures, the priced offering terms, the insider transaction details, the analyst commentary reported, and the technical specifications disclosed for the Atomiq chip.

Risks

  • The upsized public offering of 2,679,600 shares may dilute existing shareholders - a corporate finance risk tied to the offering.
  • Ambiq reported a net GAAP loss per share of ($0.22) for Q3 2025, indicating continued GAAP-level unprofitability.
  • The company’s outlook and analyst rationale reference strong demand from wearables customers, suggesting exposure to customer concentration in that sector.

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