AEHR TEST SYSTEMS

Instruments For Meas & Testing of Electricity & Elec Signals

AEHR Industrial Machinery & Equipment People in Industrial Machinery & Equipment SEC CIK 0001040470 ↗

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Market capitalisation
$3.09B
32,620,450 shares Covers every share class this company has on file.
Insiders on file
14
people who have filed Form 3, 4 or 5 naming this issuer
Value of insider-held stock
$192.71M
from the holdings reported on Forms 3/4/5; this figure has no separate as-of date on file
Insider-held share of market cap
6.23%
insider-held value divided by market capitalisation

What AEHR TEST SYSTEMS reports

Revenue and net income below are for fiscal period FY2026, the period label carried by this company’s own annual XBRL filings to the SEC. Fiscal years do not line up between companies — one company’s FY2026 can cover much the same months as another’s FY2025 — so compare the periods, not just the numbers.

Revenue
$50.00M
FY2026 annual revenue, from this company’s own annual XBRL filings to the SEC
Net income
-$7.13M
FY2026 a loss for the period, from this company’s own annual XBRL filings to the SEC
Employees
138
Yahoo Finance
Where the employee count comes from

Headcount comes from Yahoo Finance, not from a filing. The date beside it is the day we retrieved the figure — it is not the date the company counted its staff, and Yahoo does not publish that date. Unlike the SEC filings behind the other figures on this page, this one carries no open licence, so we publish the number and nothing else from that source.

Insiders at AEHR TEST SYSTEMS

Shares is what each person last reported holding here.

Everyone below has filed at least one insider report against this company.

Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.

Rows are grouped by the role each person reports.

The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.

People who file insider reports against AEHR TEST SYSTEMS.
Insider Reported role Shares Value Last action
Officers 8
Donald P. Richmond II CTO 213,217 $18.39M F Shares withheld for taxes Jul 27, 2026 position reported
Vernon Rogers Vernon Rogers EVP 177,206 $15.29M S Open-market sale Aug 17, 2026 position reported
Chris Siu Chris Siu CFO 77,469 $6.68M F Shares withheld for taxes Sep 1, 2026 position reported
Alberto Salamone Alberto Salamone EVP 76,906 $6.63M S Open-market sale Aug 13, 2026 position reported
Adil Engineer Adil Engineer COO 45,676 $3.94M G Bona fide gift Aug 14, 2026 position reported
Alistair N. Sporck VP 30,367 $2.62M S Open-market sale Aug 10, 2026 position reported
Avijit K Ray-Chaudhuri EVP 28,318 $2.44M position reported
Didier Wimmers Didier Wimmers EVP 14,186 $1.22M F Shares withheld for taxes Sep 3, 2026 position reported
Officers who also sit on the board 1
Gayn Erickson Gayn Erickson CEO 542,927 $46.83M S Open-market sale Aug 12, 2026 position reported
Directors 5
Rhea J. Posedel Board Member 528,142 $45.56M S Open-market sale Aug 14, 2026 position reported
Geoffrey Gates Scott Geoffrey Gates Scott Board Member 253,550 $21.87M S Open-market sale Aug 12, 2026 position reported
Howard T. Slayen Howard T. Slayen Board Member 203,328 $17.54M S Open-market sale Aug 14, 2026 position reported
Laura Oliphant Laura Oliphant Board Member 26,097 $2.25M S Open-market sale Aug 12, 2026 position reported
Fariba Danesh Fariba Danesh Board Member 16,643 $1.44M A Grant or award Jul 1, 2026 position reported

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

Alberto Salamone sold 15,000 AEHR TEST SYSTEMS (AEHR) shares for $1,418,400 on Apr 21, 2026

Unusual change in a direct holding

Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line.

Alberto Salamone sold 15,000 AEHR TEST SYSTEMS (AEHR) shares for $1,418,400 on Apr 21, 2026
Date Insider Transaction Shares Price Value Filing
Apr 21, 2026 Alberto Salamone S Open-market sale 15,000 held after: 48,025 $94.56 $1,418,400 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Laura Oliphant sold 4,665 AEHR TEST SYSTEMS (AEHR) shares for $399,277 on Apr 16, 2026

Large trade for this person

Flagged because this trade was large compared with this person’s own earlier open-market trades in the same currency — not because it is large in absolute terms. A trade that is routine for one insider can be flagged for another.

Laura Oliphant sold 4,665 AEHR TEST SYSTEMS (AEHR) shares for $399,277 on Apr 16, 2026
Date Insider Transaction Shares Price Value Filing
Apr 16, 2026 Laura Oliphant S Open-market sale 4,665 held after: 0 $85.59 $399,277 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Gayn Erickson sold 56,788 AEHR TEST SYSTEMS (AEHR) shares for $4,008,097 on Apr 10, 2026

Unusual change in a direct holding

Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line.

Gayn Erickson sold 56,788 AEHR TEST SYSTEMS (AEHR) shares for $4,008,097 on Apr 10, 2026
Date Insider Transaction Shares Price Value Filing
Apr 10, 2026 Gayn Erickson S Open-market sale 56,788 held after: 191,999 $70.58 $4,008,097 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Laura Oliphant sold 3,000 AEHR TEST SYSTEMS (AEHR) shares for $205,080 on Apr 9, 2026

Large trade for this person

Flagged because this trade was large compared with this person’s own earlier open-market trades in the same currency — not because it is large in absolute terms. A trade that is routine for one insider can be flagged for another.

Laura Oliphant sold 3,000 AEHR TEST SYSTEMS (AEHR) shares for $205,080 on Apr 9, 2026
Date Insider Transaction Shares Price Value Filing
Apr 9, 2026 Laura Oliphant S Open-market sale 3,000 held after: 4,665 $68.36 $205,080 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Recent insider transactions

Of the 437 rows we hold, 3 are open-market purchases (P) and 78 open-market sales (S) — the only codes we count as buying or selling.

The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.

A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.

Insider transactions disclosed to the SEC for AEHR TEST SYSTEMS, newest first, each with the filing behind it.
Date Insider Transaction Shares Price Value Filing
Sep 3, 2026 Didier Wimmers F Shares withheld for taxes 317 $76.27 $24.2K SEC filing ↗
Sep 1, 2026 Chris Siu F Shares withheld for taxes 496 $76.59 $38.0K SEC filing ↗
Aug 17, 2026 Vernon Rogers S Open-market sale 3,994 $143.77 $574.2K SEC filing ↗
Aug 14, 2026 Vernon Rogers S Open-market sale 1,000 $139.00 $139.0K SEC filing ↗
Aug 14, 2026 Vernon Rogers S Open-market sale 1,000 $134.00 $134.0K SEC filing ↗
Aug 14, 2026 Adil Engineer G Bona fide gift 500 $0.00 $0 SEC filing ↗
Aug 14, 2026 Howard T. Slayen S Open-market sale 5,700 $133.03 $758.3K SEC filing ↗
Aug 14, 2026 Rhea J. Posedel S Open-market sale 5,973 $140.00 $836.2K SEC filing ↗
Aug 13, 2026 Alberto Salamone S Open-market sale 5,472 $127.50 $697.7K SEC filing ↗
Aug 13, 2026 Alberto Salamone S Open-market sale 4,200 $128.00 $537.6K SEC filing ↗
Aug 12, 2026 Gayn Erickson S Open-market sale 38,452 $130.79 $5.03M SEC filing ↗
Aug 12, 2026 Gayn Erickson S Open-market sale 1,548 $132.27 $204.8K SEC filing ↗
Aug 12, 2026 Rhea J. Posedel S Open-market sale 8,413 $130.00 $1.09M SEC filing ↗
Aug 12, 2026 Geoffrey Gates Scott S Open-market sale 20,000 $131.51 $2.63M SEC filing ↗
Aug 12, 2026 Geoffrey Gates Scott G Bona fide gift 6,731 $0.00 $0 SEC filing ↗
Aug 12, 2026 Adil Engineer S Open-market sale 7,500 $131.10 $983.3K SEC filing ↗
Aug 12, 2026 Adil Engineer S Open-market sale 7,500 $130.95 $982.1K SEC filing ↗
Aug 12, 2026 Adil Engineer M Option exercise or conversion 15,000 $9.45 $141.8K SEC filing ↗
Aug 12, 2026 Laura Oliphant S Open-market sale 1,717 $133.00 $228.4K SEC filing ↗
Aug 10, 2026 Alistair N. Sporck S Open-market sale 1,000 $108.49 $108.5K SEC filing ↗
Aug 4, 2026 Alistair N. Sporck S Open-market sale 1,301 $101.10 $131.5K SEC filing ↗
Aug 4, 2026 Alistair N. Sporck S Open-market sale 699 $100.70 $70.4K SEC filing ↗
Aug 4, 2026 Howard T. Slayen S Open-market sale 20,000 $108.30 $2.17M SEC filing ↗
Aug 4, 2026 Laura Oliphant G Bona fide gift 500 $0.00 $0 SEC filing ↗
Aug 3, 2026 Alberto Salamone F Shares withheld for taxes 204 $79.98 $16.3K SEC filing ↗

From SEC Form 4 filings. Every row links to the filing it came from. How we calculate this.

What a Form 4 is

The report an officer, director or large shareholder must file after trading their own company’s stock.

Subsidiaries — 4 legal entities

Subsidiaries of AEHR TEST SYSTEMS

4 legal entities named in the subsidiary exhibit filed with this company’s most recent 10-K. . Filing on SEC.gov.

This is not the full list. SEC rules only require a company to name its significant subsidiaries.

What that leaves out

Smaller entities are left out of the exhibit entirely. A short list here means a short exhibit — it does not mean the company owns nothing else. Nothing on this page is inferred: every name below is copied from the filing.

Subsidiaries AEHR TEST SYSTEMS names in its most recent annual report, with the place each one is organised.
Subsidiary Organised in
Aehr Test Systems GmbH, incorporated in Germany
Aehr Test Systems Japan Limited, incorporated in Japan
Aehr Test Systems Philippines Inc., incorporated in Philippines
Incal Technology, Inc., incorporated in California
What counts as a subsidiary

A subsidiary is a separate legal entity this company controls; it is not the same thing as a brand, a division or an office. These entities do not file with the SEC in their own right, so there is no separate page to open for them.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Sources and technical notes

Every figure on this page comes from filings to the U.S. SEC via EDGAR. Nothing here is estimated, and nothing is taken from press coverage or company websites.

Share count: cover page of the latest filing (dei:EntityCommonStockSharesOutstanding), taken from AEHR TEST SYSTEMS’s own filings and multiplied by our closing price. Full method.

What that share count means

the share count the company itself prints on the cover of its most recent filing, as of the date it signed that filing.

We do not take a market cap from a data vendor, and we do not estimate one: the figure is a share count from AEHR TEST SYSTEMS’s own SEC filings multiplied by the closing price we hold for the same stock.