AEHR TEST SYSTEMS
Aehr Test Systems, Inc. (NASDAQ: AEHR) is a leading provider of test solutions for semiconductor devices, headquartered in Fremont, California. The company's website is www.aehr.com. From the company’s description.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What AEHR TEST SYSTEMS does
In the company’s own words
Aehr Test Systems, Inc. (NASDAQ: AEHR) is a leading provider of test solutions for semiconductor devices, headquartered in Fremont, California. The company's website is www.aehr.com.
Aehr Test designs, manufactures, and markets advanced test and burn-in systems that screen semiconductor devices for defects and reliability across wafer level, singulated die, and package level applications. The company serves semiconductor manufacturers, contract assemblers, electronics manufacturers, and independent test and burn-in service companies worldwide.
The company operates through two primary product categories. Wafer level and die level test and burn-in systems, which accounted for 63 percent of fiscal 2026 revenues, include the FOX-XP, FOX-NP, and FOX-CP platforms designed for testing entire wafers or singulated die and modules. These systems incorporate proprietary WaferPak Contactors, DiePak Carriers, WaferPak Aligners, and DiePak Loaders that enable high-throughput, cost-effective testing. Package level test and burn-in systems, representing 37 percent of fiscal 2026 revenues, comprise the Sonoma series for ultra-high-power applications, the Tahoe series for medium-power reliability testing, and the Echo series for low-power applications.
Aehr Test's solutions address mission-critical applications including artificial intelligence processors, silicon carbide and gallium nitride power semiconductors for electric vehicles, silicon photonics for data centers, automotive sensors, and memory devices. The company holds 125 active patents with expiration dates ranging from 2028 to 2045.
As of May 29, 2026, Aehr Test employed 138 regular full-time employees across principal offices in the United States, Germany, Taiwan, and the Philippines, with additional service personnel located at customer facilities worldwide. The company maintains a concentrated customer base, with five largest customers accounting for approximately 70 percent of fiscal 2026 net revenues. Fiscal 2026 net revenues totaled approximately $50 million, with backlog of $80.6 million as of May 29, 2026.
Company details
- Sector
- Healthcare
- Industry
- Medical Instruments
- Headquarters
- FREMONT, CA
- Fiscal year end
- December
- CIK
- 1040470
- SIC
- 3825
Financial performance, year by year
Fiscal 2012–2023 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns AEHR TEST SYSTEMS — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Superinvestors in AEHR TEST SYSTEMS · what they did last quarter
Share of each manager’s reported 13F portfolio. Change is in shares held, since the previous quarter.
Largest fund holders · AEHR TEST SYSTEMS’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Fund ownership is a subset of institutional 13F ownership — the two describe overlapping populations and must not be added together.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
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