Ambiq Micro (AMBQ)
Designs ultra-low-power Apollo SoCs and software for battery-powered edge AI.
Something off on this page? Send us feedback.
Designs ultra-low-power SoCs and software for battery-powered edge AI, earning primarily from Apollo chips used in personal devices and other embedded systems. Its fabless model depends on TSMC for every wafer, while a small group of end customers contributes most sales.
Designs ultra-low-power systems-on-chip and software for edge AI, where limited batteries constrain always-on sensing and compute. The Apollo family pairs general-purpose and vector-accelerated processing with connectivity, graphics, security, and sensing; AmbiqSuite, Helia, and neuralSPOT help customers build and deploy applications. The in-development Atomiq roadmap adds dedicated neural processing.
Serves personal devices, healthcare, industrial automation, and smart-home systems through direct sales and distributors across the United States, Europe, and Asia. Its SPOT design methods target ultra-low power using mature semiconductor processes, while tightly integrated software shortens development for constrained edge devices.
Operates as a fabless, single-segment semiconductor supplier. Personal devices generate most revenue, a small group of end customers accounts for most sales, and TSMC fabricates every wafer.
Company facts
Categories
Unavailable right now.
EPSReportedEstimate
RevenueReportedEstimate
Balance sheet, Jun 30, 2026Cash & short-term investments $366.8M · Total debt $4.6M · Total assets $435.6M · Shareholders' equity $404.7M
- Revenue
- $33.9M
- Operating income
- −$8.7M
- Net income
- −$7.1M
No dividends on record.
| Institutions191 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | ≈ 112.80% | 27.28M shares | |
| Insiders10 holders · as of Sep 2, 2026 | 7.23% | 1.75M shares | |
| Strategic holders1 holder · as of Nov 3, 2025 | 6.16% | 1.49M shares | |
| Adds to | 126.19% |
24.18M company shares as of Sep 3, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
These groups come from separate filings that can overlap, so they add to 126.19%; nothing is left for Other.
Top shareholders13F · 13D/G · Form 4
| Holder | Stake | Shares | Evidence |
|---|---|---|---|
Manufacturers Life Insurance Company, theInstitution | 42.60% | 10.30M | 13Fas of Jun 30, 2026 |
KPCB XVI Associates, LLCStrategic10 percent owner | 6.16% | 1.49M | 13Gfiled Nov 3, 2025 ↗ |
BlackRock, Inc.Institution | 5.71% | 1.38M | 13Fas of Jun 30, 2026 |
T. Rowe Price Investment Management, Inc.Institution | 4.16% | 1.01M | 13Fas of Jun 30, 2026 |
D. E. Shaw & Co., Inc.Institution | 4.07% | 983,916 | 13Fas of Jun 30, 2026 |
| See all 25 → | |||
13F — a manager's quarterly holdings · 13D/13G — an ownership statement filed at 5% or more
Insider tradesForm 4
| Date | Insider | Role | Shares | Avg price |
|---|---|---|---|---|
| Sep 2, 2026 | Fumihide Esaka | director, officer: Chief Executive Officer | −11,027 | $56.69 |
| Sep 1, 2026 | Fumihide Esaka | director, officer: Chief Executive Officer | −48,973 | $56.39 |
| Aug 31, 2026 | Fumihide Esaka | director, officer: Chief Executive Officer | −48,500 | $57.44 |
| Aug 27, 2026 | Scott McLean Hanson | director, officer: Chief Technology Officer | −27,500 | $59.80 |
| Aug 26, 2026 | Scott McLean Hanson | director, officer: Chief Technology Officer | −27,500 | $59.58 |
- STMicroelectronics (ADR)
Ultra-low-power STM32 MCUs across edge AI endpoints
- Silicon Labs
Wireless IoT SoCs for smart home and industrial edge
- NXP Semiconductors
Edge-processing MCUs and crossover processors
- Microchip Technology
Broad low-power MCU portfolio for embedded control
- Texas Instruments
Low-power embedded MCUs at broad industrial scale
ComparePre-market
| Company | Price | Change | |||||
|---|---|---|---|---|---|---|---|
| Ambiq Micro | $57.35 | +0.19% | $1.38B | — | — | 14.1 | +89.7% |
| STMicroelectronics (ADR) | $50.93 | +0.44% | $45.26B | 99.4 | 25.5 | 3.3 | +24.4% |
| Silicon Labs | $220.30 | +0.54% | $7.26B | — | 60.4 | 8.5 | +18.3% |
| NXP Semiconductors | $227.80 | −0.32% | $57.62B | 19.5 | 13.7 | 4.4 | +19.5% |
| Microchip Technology | $72.21 | −0.75% | $39.51B | 100.9 | 18.6 | 7.7 | +38.1% |
| Texas Instruments | $252.55 | −0.88% | $232.70B | 38.7 | 26.8 | 12.0 | +22.8% |
| Median | 69.1 | 25.5 | 7.7 | +22.8% |