HIGHOutside partyCustomer
95.6%
top ten end customers
“10-K Item 1A: 'our top ten end customers accounted for approximately 95.6% and 96.7% of our total net sales for the years ended December 31, 2025 and 2024 respectively.'”
AMBQ · Concentration risk · 10-K extracted
Ambiq Micro (AMBQ) concentration risks
Updated
The most significant concentration Ambiq Micro discloses is top ten end customers at 95.6%, classified HIGH by disclosed size. Below: the full set from the latest 10-K — verbatim quotes, filing references, and a synthesis of what these exposures mean together.
Model-generated analysis — not investment advice. Not a registered investment advisor. Past performance does not guarantee future results.
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Source: Ambiq Micro’s SEC Form 10-K filed — view the filing on SEC EDGAR ↗
At a glance
Disclosed-size breakdown · 3 disclosed concentrations
HIGH2
MEDIUM1
LOW0
Disclosed concentrations
Each card carries a disclosed-size chip (HIGH / MEDIUM / LOW — how large the exposure is as a share of revenue, not how dangerous it is) and a nature tag: Built-in(the company’s own model, geography, or products) or Outside party (an external customer, supplier, or distributor it relies on).
HIGHOutside partySupplier
single third-party wafer supplier
“10-K Item 1A: 'we rely on a single third-party supplier for the fabrication of semiconductor wafers and on a limited number of suppliers of other materials'”
MEDIUMOutside partyCustomer
35.6%
largest end customer
“10-K Item 1A: 'Our largest end customer historically has accounted for a large portion of our sales, representing approximately 35.6% and 40.9% of our net sales for the years ended December 31, 2025 and 2024 respectively.'”
TrendMatrix Research · concentration synthesis
What these concentrations mean together
updated 2026-07-06Ambiq Micro's revenue base is narrowly held: the top ten end customers accounted for approximately 95.6% of total net sales, essentially unchanged from 96.7% the year before — a high-share dependency that leaves little revenue base outside a small customer set. Within that group, the single largest end customer represented approximately 35.6% of net sales, down from 40.9% a year earlier — a medium-share dependency that, while easing, still represents a substantial single point of concentration. Layered onto customer concentration is supply-side dependency: Ambiq relies on a single third-party supplier for the fabrication of semiconductor wafers, a high-share exposure with no diversification cushion described in the cited claims. Taken together, these three exposures reinforce rather than offset one another: the customer base is narrow, the largest customer within that base is material on its own, and the manufacturing process depends on a single external fabricator. Any one of the three — loss of the top customer, disruption at the wafer supplier, or erosion of the broader top-ten relationships — could materially affect results, making concentration a first-order consideration for this name.
For the engine’s reasoning on AMBQ’s current verdict — including which dimensions drove the score — see the per-dimension breakdown.
Industry peers · Semiconductors
Peer concentration profile
| Symbol | Name | HIGH | MEDIUM | LOW | Total |
|---|---|---|---|---|---|
| ALAB | Astera Labs, Inc. | 3 | 0 | 0 | 3 |
| AMBQ● | Ambiq Micro, Inc. | 2 | 1 | 0 | 3 |
| ADI | Analog Devices, Inc. | 2 | 0 | 0 | 2 |
| ALGM | Allegro MicroSystems, Inc. | 1 | 2 | 0 | 3 |
| AMD | Advanced Micro Devices, Inc. | 1 | 2 | 0 | 3 |
| AIP | Arteris, Inc. | 0 | 1 | 0 | 1 |
Concentration counts reflect items disclosed in each peer’s most recent 10-K; disclosed-size classification uses TrendMatrix’s internal 10-K extraction taxonomy.