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AEHR Insider Trading & Form 4 Activity

AEHR TEST SYSTEMS
Last filing: Oct 20, 2026·4 days ago
BEARISH · LAST 90 DAYS
0%
buyers
$0
0 buys
$16.2M
16 sells
-$16.2M
net selling
9
insiders
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ACTIVE SELLING CLUSTER

9 insiders sold a combined $16.2M of AEHR between Aug 4, 2026 and Aug 17, 2026.

Sporck Alistair N, Slayen Howard T, Posedel Rhea J, Engineer Adil, Erickson Gayn and 4 more

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Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Erickson Gayn
President and CEO
—
$5.2M
-$5.2M
Slayen Howard T
Director
—
$2.9M
-$2.9M
Scott Geoffrey Gates
Director
—
$2.6M
-$2.6M
Posedel Rhea J
Director
—
$1.9M
-$1.9M
Salamone Alberto
EVP, PPBI BUSINESS
—
$1.2M
-$1.2M
Engineer Adil
Chief Operating Officer
—
$982K
-$982K
Rogers Vernon
Exec VP of Sales & Mktg.
—
$708K
-$708K
Sporck Alistair N
VP Contactor Business Unit
—
$310K
-$310K

Recent transactions

Every Form 4 transaction for AEHR, newest first.

EXERCISE
Posedel Rhea J · Director
Tx Oct 20·Filed Oct 20·EDGAR ↗
18,000 sh @ $1.77
$32K
TAX
Siu Chris · CFO
Tx Oct 12·Filed Oct 13·EDGAR ↗
987 sh @ $84.64
$84K
TAX
Engineer Adil · Chief Operating Officer
Tx Oct 12·Filed Oct 13·EDGAR ↗
547 sh @ $84.64
$46K
TAX
Richmond Donald P. II · CTO
Tx Oct 12·Filed Oct 13·EDGAR ↗
388 sh @ $84.64
$33K
TAX
Erickson Gayn · President and CEO
Tx Oct 12·Filed Oct 13·EDGAR ↗
2,675 sh @ $84.64
$226K
TAX
Sporck Alistair N · VP Contactor Business Unit
Tx Oct 12·Filed Oct 13·EDGAR ↗
295 sh @ $84.64
$25K
TAX
Rogers Vernon · Exec VP of Sales & Mktg.
Tx Oct 12·Filed Oct 13·EDGAR ↗
426 sh @ $84.64
$36K
TAX
Rogers Vernon · Exec VP of Sales & Mktg.
Tx Oct 2·Filed Oct 5·EDGAR ↗
476 sh @ $107.21
$51K
TAX
Sporck Alistair N · VP Contactor Business Unit
Tx Oct 2·Filed Oct 5·EDGAR ↗
345 sh @ $107.21
$37K
TAX
Siu Chris · CFO
Tx Oct 2·Filed Oct 5·EDGAR ↗
1,164 sh @ $107.21
$125K
TAX
Engineer Adil · Chief Operating Officer
Tx Oct 2·Filed Oct 5·EDGAR ↗
620 sh @ $107.21
$66K
TAX
Richmond Donald P. II · CTO
Tx Oct 2·Filed Oct 5·EDGAR ↗
439 sh @ $107.21
$47K
TAX
Erickson Gayn · President and CEO
Tx Oct 2·Filed Oct 5·EDGAR ↗
3,239 sh @ $107.21
$347K
TAX
Salamone Alberto · EVP, PPBI BUSINESS
Tx Oct 2·Filed Oct 5·EDGAR ↗
556 sh @ $107.21
$60K
OTHER
Erickson Gayn · President and CEO
Tx Oct 1·Filed Oct 2·EDGAR ↗
1,053 sh @ $6.67
$7K
OTHER
Richmond Donald P. II · CTO
Tx Oct 1·Filed Oct 2·EDGAR ↗
1,064 sh @ $6.67
$7K
TAX
Wimmers Didier · Executive VP of R&D
Tx Oct 1·Filed Oct 2·EDGAR ↗
54 sh @ $101.60
$5K
OTHER
Sporck Alistair N · VP Contactor Business Unit
Tx Oct 1·Filed Oct 2·EDGAR ↗
1,221 sh @ $6.67
$8K
TAX
Sporck Alistair N · VP Contactor Business Unit
Tx Oct 1·Filed Oct 2·EDGAR ↗
54 sh @ $101.60
$5K
OTHER
Engineer Adil · Chief Operating Officer
Tx Oct 1·Filed Oct 2·EDGAR ↗
730 sh @ $6.67
$5K
OTHER
Rogers Vernon · Exec VP of Sales & Mktg.
Tx Oct 1·Filed Oct 2·EDGAR ↗
1,626 sh @ $6.67
$11K
TAX
Richmond Donald P. II · CTO
Tx Oct 1·Filed Oct 2·EDGAR ↗
76 sh @ $101.60
$8K
OTHER
Wimmers Didier · Executive VP of R&D
Tx Oct 1·Filed Oct 2·EDGAR ↗
1,311 sh @ $6.67
$9K
TAX
Engineer Adil · Chief Operating Officer
Tx Oct 1·Filed Oct 2·EDGAR ↗
98 sh @ $101.60
$10K
TAX
Rogers Vernon · Exec VP of Sales & Mktg.
Tx Oct 1·Filed Oct 2·EDGAR ↗
77 sh @ $101.60
$8K
TAX
Salamone Alberto · EVP, PPBI BUSINESS
Tx Oct 1·Filed Oct 2·EDGAR ↗
45 sh @ $101.60
$5K
TAX
Erickson Gayn · President and CEO
Tx Oct 1·Filed Oct 2·EDGAR ↗
499 sh @ $101.60
$51K
OTHER
Salamone Alberto · EVP, PPBI BUSINESS
Tx Oct 1·Filed Oct 2·EDGAR ↗
1,512 sh @ $6.67
$10K
TAX
Siu Chris · CFO
Tx Oct 1·Filed Oct 1·EDGAR ↗
194 sh @ $101.60
$20K
OTHER
Siu Chris · CFO
Tx Oct 1·Filed Oct 1·EDGAR ↗
1,089 sh @ $6.67
$7K
TAX
Wimmers Didier · Executive VP of R&D
Tx Sep 3·Filed Sep 3·EDGAR ↗
317 sh @ $76.27
$24K
TAX
Siu Chris · CFO
Tx Sep 1·Filed Sep 1·EDGAR ↗
496 sh @ $76.59
$38K
SELL
Rogers Vernon · Exec VP of Sales & Mktg.
Tx Aug 17·Filed Aug 18·EDGAR ↗
3,994 sh @ $143.77
$574K
SELL
Rogers Vernon · Exec VP of Sales & Mktg.
Tx Aug 14·Filed Aug 18·EDGAR ↗
1,000 sh @ $134.00
$134K
SELL
Slayen Howard T · Director
Tx Aug 14·Filed Aug 14·EDGAR ↗
5,700 sh @ $133.03
$758K
SELL
Posedel Rhea J · Director
Tx Aug 14·Filed Aug 14·EDGAR ↗
5,973 sh @ $140.00
$836K
GIFT
Engineer Adil · Chief Operating Officer
Tx Aug 14·Filed Aug 14·EDGAR ↗
500 sh
—
SELL
Salamone Alberto · EVP, PPBI BUSINESS
Tx Aug 13·Filed Aug 14·EDGAR ↗
4,200 sh @ $128.00
$538K
SELL
Salamone Alberto · EVP, PPBI BUSINESS
Tx Aug 13·Filed Aug 14·EDGAR ↗
5,472 sh @ $127.50
$698K
SELL
Erickson Gayn · President and CEO
Tx Aug 12·Filed Aug 13·EDGAR ↗
38,452 sh @ $130.79
$5.0M
SELL
Erickson Gayn · President and CEO
Tx Aug 12·Filed Aug 13·EDGAR ↗
1,548 sh @ $132.27
$205K
SELL
Engineer Adil · Chief Operating Officer
Tx Aug 12·Filed Aug 13·EDGAR ↗
7,500 sh @ $130.95
$982K
SELL
Posedel Rhea J · Director
Tx Aug 12·Filed Aug 13·EDGAR ↗
8,413 sh @ $130.00
$1.1M
SELL
Oliphant Laura · Director
Tx Aug 12·Filed Aug 13·EDGAR ↗
1,717 sh @ $133.00
$228K
EXERCISE
Engineer Adil · Chief Operating Officer
Tx Aug 12·Filed Aug 13·EDGAR ↗
15,000 sh @ $9.45
$142K
GIFT
Scott Geoffrey Gates · Director
Tx Aug 12·Filed Aug 13·EDGAR ↗
6,731 sh
—
SELL
Scott Geoffrey Gates · Director
Tx Aug 12·Filed Aug 13·EDGAR ↗
20,000 sh @ $131.51
$2.6M
SELL
Sporck Alistair N · VP Contactor Business Unit
Tx Aug 10·Filed Aug 11·EDGAR ↗
1,000 sh @ $108.49
$108K
SELL
Sporck Alistair N · VP Contactor Business Unit
Tx Aug 4·Filed Aug 6·EDGAR ↗
699 sh @ $100.69
$70K
SELL
Sporck Alistair N · VP Contactor Business Unit
Tx Aug 4·Filed Aug 6·EDGAR ↗
1,301 sh @ $101.10
$132K

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About AEHR insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for AEHR from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

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Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying AEHR always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on AEHR TEST SYSTEMS (AEHR) when they form.

Where does AEHR insider trading data come from?

Every Form 4 filing for AEHR is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

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