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AEHR · Aehr Test Systems
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AEHR Aehr Test Systems (AEHR) Insider Trading, Ownership & Congress Trades

Industrials · Instruments for meas & testing of electricity & elec signals · CIK 0001040470
Quote by TradingView
Form 144 · 13
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
177
13F, latest reported quarter
Conversions, 180 days
5
Codes C/M, not in net · $239.0K priced

What the filings say about AEHR

Insiders, 180 days
-$19.9M net sold
10 sellers · 0% of sales under a 10b5-1 plan
Planned sales (Form 144), 90 days
$17.3M
13 notices

Aehr Test Systems insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, AEHR TEST SYSTEMS insiders sold a net $19.9M of stock across 211 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-28.

Insider
Filed
Shares
Value
Since filing
ROGERS VERNON
Exec VP of Sales & Mktg.
SELL
2026-08-18 SECtraded 2026-08-17
3,994
$574.2K
-40.8%
Context
  • 13 earlier Form 4 trades (code P or S) here by this insider (13 sales), the last on Aug 14, 2026.
  • The trade is 2.1% of the 186,232 shares held after it.
  • 8 other insiders sold within 30 days.
  • 177 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Exec VP of Sales & Mktg. ROGERS VERNON sold about $574.2K of AEHR on Aug 17, 2026; 8 other insiders sold within 30 days and 177 funds added in the latest 13F quarter.
POSEDEL RHEA J
Director
SELL
2026-08-14 SEC
5,973
$836.2K
-56.1%
Context
  • 27 earlier Form 4 trades (code P or S) here by this insider (27 sales), the last on Aug 12, 2026.
  • The trade is 1.6% of the 381,989 shares held after it.
  • 8 other insiders sold within 30 days.
  • 177 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director POSEDEL RHEA J sold about $836.2K of AEHR on Aug 14, 2026; 8 other insiders sold within 30 days and 177 funds added in the latest 13F quarter.
SLAYEN HOWARD T
Director
SELL
2026-08-14 SEC
5,700
$758.3K
-56.1%
Context
  • 23 earlier Form 4 trades (code P or S) here by this insider (2 buys, 21 sales), the last on Aug 4, 2026.
  • -23.3% median (-23.3% mean) 90-day return after 2 previous buys.
  • The trade is 4.1% of the 140,667 shares held after it.
  • 8 other insiders sold within 30 days.
  • 177 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director SLAYEN HOWARD T sold about $758.3K of AEHR on Aug 14, 2026; 8 other insiders sold within 30 days and 177 funds added in the latest 13F quarter.
ROGERS VERNON
Exec VP of Sales & Mktg.
SELL
2026-08-18 SECtraded 2026-08-14
1,000
$134.0K
-40.8%
Context
  • 11 earlier Form 4 trades (code P or S) here by this insider (11 sales), the last on Apr 21, 2026.
  • The trade is 0.5% of the 191,226 shares held after it.
  • 8 other insiders sold within 30 days.
  • 177 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Exec VP of Sales & Mktg. ROGERS VERNON sold about $134.0K of AEHR on Aug 14, 2026; 8 other insiders sold within 30 days and 177 funds added in the latest 13F quarter.
ROGERS VERNON
Exec VP of Sales & Mktg.
SELL
2026-08-18 SECtraded 2026-08-14
1,000
$139.0K
-40.8%
Context
  • 11 earlier Form 4 trades (code P or S) here by this insider (11 sales), the last on Apr 21, 2026.
  • The trade is 0.5% of the 190,226 shares held after it.
  • 8 other insiders sold within 30 days.
  • 177 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Exec VP of Sales & Mktg. ROGERS VERNON sold about $139.0K of AEHR on Aug 14, 2026; 8 other insiders sold within 30 days and 177 funds added in the latest 13F quarter.
211 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
See all insider buying · insider selling
Showing the latest few. to see 206 more transactions and use the screener and CSV export. We store only your email; there is no password.
Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$19.9M over 180 days
-$17.3M over 90 days
below 86% of Industrials
Congress
no House purchase disclosed in the last 12 months
Funds
177 funds bought in last quarter
more than 55% of Industrials
Revenue
-15.2% year over year
below 91% of Industrials
Margin
-14.3% net margin
below 83% of Industrials
Buybacks
no share repurchases reported
Short interest
16.7% of the float short (float per yahoo 2026-10-26) · 2.4 days to cover · settled 2026-09-30
more than 98% of Industrials
What changed in the last 30 days
Nothing new filed in the last 30 days

Watch AEHR

A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.

The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+154.9%12M
-23%+145%+313%+480%2025-102025-122026-022026-042026-062026-082026-10 2026-04-10 · Erickson Gayn sold $6.8M2026-08-12 · Erickson Gayn sold $5.0M2026-04-21 · SCOTT GEOFFREY GATES sold $4.8M2026-04-10 · Erickson Gayn sold $4.0M2026-08-12 · SCOTT GEOFFREY GATES sold $2.6M2026-08-04 · SLAYEN HOWARD T sold $2.2M2026-04-17 · SLAYEN HOWARD T sold $2.1M2026-04-09 · POSEDEL RHEA J sold $2.1M2026-04-22 · POSEDEL RHEA J sold $1.7M2026-04-09 · SCOTT GEOFFREY GATES sold $1.7M2026-07-16 · SCOTT GEOFFREY GATES sold $1.6M2026-04-21 · SALAMONE ALBERTO sold $1.4M2026-04-20 · SALAMONE ALBERTO sold $1.3M2026-04-14 · RICHMOND DONALD P. II sold $1.2M2026-04-16 · POSEDEL RHEA J sold $1.2M2026-08-12 · POSEDEL RHEA J sold $1.1M2026-04-09 · RICHMOND DONALD P. II sold $1.1M2026-08-12 · ENGINEER ADIL sold $983.2K2026-08-12 · ENGINEER ADIL sold $982.2K2026-04-21 · SCOTT GEOFFREY GATES sold $910.0K2026-04-21 · POSEDEL RHEA J sold $843.7K2026-08-14 · POSEDEL RHEA J sold $836.2K2026-04-10 · ROGERS VERNON sold $762.2K2026-08-14 · SLAYEN HOWARD T sold $758.3K2026-04-09 · ENGINEER ADIL sold $721.2K2026-05-13 · SLAYEN HOWARD T sold $714.2K2026-08-13 · SALAMONE ALBERTO sold $697.7K2026-04-09 · SCOTT GEOFFREY GATES sold $677.9K2026-04-16 · DANESH FARIBA sold $661.0K2026-04-20 · POSEDEL RHEA J sold $660.7K2026-04-17 · POSEDEL RHEA J sold $615.0K2026-04-21 · ROGERS VERNON sold $610.3K2026-08-17 · ROGERS VERNON sold $574.2K2026-08-13 · SALAMONE ALBERTO sold $537.6K2026-04-13 · DANESH FARIBA sold $500.4K2026-04-20 · ROGERS VERNON sold $450.0K2026-04-16 · ROGERS VERNON sold $434.4K2026-02-13 · POSEDEL RHEA J sold $420.2K2026-04-16 · OLIPHANT LAURA sold $399.3K2026-04-09 · SCOTT GEOFFREY GATES sold $340.0K2026-04-13 · WIMMERS DIDIER sold $248.9K2026-04-10 · DANESH FARIBA sold $245.2K2026-08-17 · ROGERS VERNON filed to sell $574.2K2026-08-14 · POSEDEL RHEA J filed to sell $836.2K2026-08-14 · SLAYEN HOWARD T filed to sell $753.9K2026-08-14 · ROGERS VERNON filed to sell $273.0K2026-08-13 · SALAMONE ALBERTO filed to sell $1.2M2026-08-12 · POSEDEL RHEA J filed to sell $1.1M2026-08-12 · ENGINEER ADIL filed to sell $2.0M2026-08-12 · Erickson Gayn filed to sell $5.2M2026-08-12 · OLIPHANT LAURA filed to sell $228.4K2026-08-12 · SCOTT GEOFFREY GATES filed to sell $2.6M2026-08-10 · SPORCK ALISTAIR N filed to sell $108.5K2026-08-04 · SLAYEN HOWARD T filed to sell $2.2M2026-08-04 · SPORCK ALISTAIR N filed to sell $201.9K2026-07-16 · SCOTT GEOFFREY GATES filed to sell $1.6M
Insider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns AEHR: institutional holders (13F)

13F holdings, latest reported quarter
BlackRock, Inc.
2,659,542 sh
$255.5M
VANGUARD CAPITAL MANAGEMENT LLC
1,320,350 sh
$126.8M
D. E. Shaw & Co., Inc.
1,177,421 sh
$113.1M
TWO SIGMA INVESTMENTS, LP
1,164,614 sh
$111.9M
FMR LLC
1,006,830 sh
$96.7M

Congress trades in AEHR

No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.

Activist and 5% holders (13D/13G)

No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.

AEHR planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
ROGERS VERNON
Filed 2026-08-17
$574.2K
POSEDEL RHEA J
Filed 2026-08-14
$836.2K
SLAYEN HOWARD T
Filed 2026-08-14
$753.9K
ROGERS VERNON
Filed 2026-08-14
$273.0K
SALAMONE ALBERTO
Filed 2026-08-13
$1.2M

AEHR mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
Invesco Dorsey Wright Technology Momentum ETF
$17.4M position · as of 2026-07-31
3.0%
Berkshire Focus Fund
$13.7M position · as of 2026-06-30
3.0%
Lord Abbett Micro-Cap Growth Fund
$5.5M position · as of 2026-07-31
2.6%
RiverPark/Next Century Growth Fund
$252.6K position · as of 2026-06-30
2.1%
1290 VT Micro Cap Portfolio
$3.3M position · as of 2026-06-30
1.5%
Corgi Lithography & Semiconductor Photonics ETF
$4.4M position · as of 2026-06-30
1.0%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Executive pay vs shareholder return · Mr. Erickson
CEO pay, headline and as actually paid, against the company's return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2025
$3.2M
$22.4M
$1.2M
+180%
n/a
2024
$3.4M
$2.3M
$1.2M
-71%
n/a
2023
$1.4M
-$927.7K
$958.2K
-65%
n/a
2022
$1.7M
$6.9M
$720.3K
+294%
n/a
Tagged by the company under SEC Item 402(v). Returns are cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders have filed to sell, before selling.
The record shows a net $19.9M sold by insiders over 180 days, 177 funds added last quarter, $17.3M in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
Backtest this pattern Open the screener
Same sector, ranked by filing activity
Sector by SEC SIC code
AXONTMOROKPKOHOFLXXPELSYMLIIITRIWABSNASXI

AEHR financials

Revenue growth
-15.2%
XBRL, annual
Net margin
-14.3%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$50.0M
four quarters, 2025-05-31 to 2026-05-29
Net margin, TTM
-14.3%
net income over revenue, 2025-05-31 to 2026-05-29
Free cash flow, TTM
-$5.4M
operating cash flow minus capex, 2025-05-31 to 2026-05-29
Debt to equity
0.00x
long-term 2021-05-31 (60 months older than the period end) plus current 2022-05-31 (48 months older than the period end); equity 2026-05-29
Cash flow to debt
n/a
no debt to cover
Return on equity
-4.2%
TTM net income over average of 2025-05-30 and 2026-05-29
Return on assets
-3.6%
TTM net income over average of 2025-05-30 and 2026-05-29
Return on invested capital
n/a
pre-tax loss, no effective tax rate to apply
Return on capital employed
-7.8%
operating income (EBIT proxy) over average of 2025-05-30 and 2026-05-29 minus current liabilities
P/E, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Enterprise value
$2.0B
market value at close 2026-10-27 on 2026-07-20 shares, plus long-term 2021-05-31 (60 months older than the period end) plus current 2022-05-31 (48 months older than the period end), minus cash 2026-05-29
FCF yield
-0.3%
TTM free cash flow over market value at close 2026-10-27
PEG, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Price as of 2026-10-27. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2026-052025-052024-052023-05
Revenue$50.0M$59.0M$66.2M$65.0M
Gross profit$17.7M$23.9M$32.5M$32.7M
Operating income-$14.1M-$5.7M$10.1M$13.4M
Net income-$7.1M-$3.9M$33.2M$14.6M
EPS (diluted)-0.23-0.131.120.50
Operating cash flow-$3.3M-$7.4M$1.8M$10.0M
Cash$116.4M$24.5M$49.2M$30.1M
SEC XBRL, fiscal years, as known on 2026-10-28

AEHR Stock Sonar score 6/7 axes

Find similar shapesCompare

AEHR ranks highest on financial health (99th percentile) and institutional and government (54th), and lowest on insider conviction (7th), among Industrials peers.

ProfitHealthGrowthInsidersInstitutionsRisk
Profitability
23
Inputs
  • Return on equity-4.2% · 22 pct, sector of 198
  • Return on assets-3.6% · 26 pct, sector of 224
  • Return on invested capitalpre-tax loss, no effective tax rate to apply
  • Return on capital employed-7.8% · 21 pct, sector of 195
Financial health
100
Inputs
  • Debt to equity0.00x · 100 pct, sector of 214
  • Cash flow to debtno debt to cover
Growth
12
Inputs
  • Revenue growth, YoY-15.2% · 9 pct, sector of 254
  • Backlog growth, YoY-24.4% · 15 pct, sector of 89
Insider conviction
7
Inputs
  • Net Form 4 buying (codes P and S), 180d-$19.9M · 14 pct, sector of 170
  • Insider buyers, 180d0 · 0 pct, sector of 172
Institutional and government
54
Inputs
  • Funds adding, latest quarter177 · 54 pct, sector of 201
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quartersno lobbying filings in the last four quarters
Risk and compliance
53
Inputs
  • Short interest, % of float+16.7% · 8 pct, sector of 269
  • Recalls per $1B revenue, 3ynot measured for this sector, almost no peer has an event
  • EPA cases per $1B revenue, 5y0.00 per $1B · 100 pct, sector of 191
  • New text in Risk Factors, latest 10-K+10.9% · 50 pct, sector of 197
1 not measured: US patents
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

6 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

AEHR filings, in plain words

Are Aehr Test Systems insiders buying or selling AEHR?

In the 180 days to 2026-10-28, Aehr Test Systems insiders were net sellers, a net $19.9M across purchases and sales reported on Form 4, by 10 sellers.

Are there planned insider sales of AEHR?

Yes. 13 Form 144 notices of planned insider sales were filed in the 90 days to 2026-10-28, covering $17.3M of stock; the latest, by ROGERS VERNON, was filed 2026-08-17.

Read the full summary

In the 180 days to 2026-10-28, Aehr Test Systems insiders were net sellers of AEHR, a net $19.9M across purchases and sales reported on Form 4 by 10 sellers. None of the 22 insider sales was flagged as made under a Rule 10b5-1 plan. Insiders filed 13 Form 144 notices of intent to sell in the 90 days to 2026-10-28, covering $17.3M of stock. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.

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