AEHR insider buying and SEC filings, explained
Aehr Test Systems · CIK 1040470
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- Instruments For Meas & Testing of Electricity & Elec Signals
- State of incorporation
- CA
- Fiscal year end
- Dec 31
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$57.8M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Aug 14–17, 2026 | Sale | Vernon Rogers (Exec VP of Sales & Mktg.) sold 5,994 shares between Aug 14 and Aug 17 at about $141.34 ($847K). Holdings down 3% to 186,232 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 18, 2026 |
| Aug 14, 2026 | Sale | Howard T. Slayen (Director) sold 5,700 shares at $133.03 ($758K). Holdings down 4% to 140,667 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 14, 2026 |
| Aug 14, 2026 | Sale | Rhea J. Posedel (Director) sold 5,973 shares indirectly (by trust) at $140.00 ($836K). Holdings by trust down 2% to 381,989 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 14, 2026 |
| Aug 13, 2026 | Sale | Alberto Salamone (EVP, Ppbi Business) sold 9,672 shares at about $127.72 ($1.2M). Holdings down 19% to 41,962 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 14, 2026 |
| Aug 12, 2026 | Sale | Gayn Erickson (CEO and Director) sold 40,000 shares indirectly (by trust) at about $130.85 ($5.2M). Holdings by trust down 20% to 157,723 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 13, 2026 |
| Aug 12, 2026 | Sale | Rhea J. Posedel (Director) sold 8,413 shares indirectly (by trust) at $130.00 ($1.1M). Holdings by trust down 2% to 387,962 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 13, 2026 |
| Aug 12, 2026 | Sale | Geoffrey Gates Scott (Director) sold 20,000 shares indirectly (by spouse) at $131.51 ($2.6M). Holdings by spouse down 67% to 10,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 13, 2026 |
| Aug 12, 2026 | Sale | Laura Oliphant (Director) sold 1,717 shares at $133.00 ($228K). Holdings down 10% to 16,100 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 13, 2026 |
| Aug 10, 2026 | Sale | Alistair N. Sporck (VP Contactor Business Unit) sold 1,000 shares at $108.49 ($108K). Holdings down 4% to 22,547 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 11, 2026 |
| Aug 4, 2026 | Sale | Alistair N. Sporck (VP Contactor Business Unit) sold 2,000 shares at about $100.96 ($202K). Holdings down 8% to 23,547 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 6, 2026 |
| Aug 4, 2026 | Sale | Howard T. Slayen (Director) sold 20,000 shares at $108.30 ($2.2M). Holdings down 12% to 146,367 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 4, 2026 |
| Jul 16, 2026 | Sale | Geoffrey Gates Scott (Director) sold 20,000 shares indirectly (by spouse) at $82.13 ($1.6M). Holdings by spouse down 40% to 30,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jul 17, 2026 |
| May 14, 2026 | Sale | Chris Siu (CFO) sold 2,070 shares directly and indirectly (by trust) at about $107.06 ($222K). Direct holdings down 1% to 70,270 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 15, 2026 |
| May 13, 2026 | Sale | Howard T. Slayen (Director) sold 6,819 shares at $104.73 ($714K). Holdings down 4% to 169,709 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 15, 2026 |
| Apr 22, 2026 | Sale | Rhea J. Posedel (Director) sold 17,719 shares directly and indirectly (by trust) at about $99.83 ($1.8M). Direct holdings down 27% to 45,261 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 22, 2026 |
| Apr 22, 2026 | Sale | Alistair N. Sporck (VP Contactor Business Unit) sold 2,000 shares indirectly (by trust) at $93.50 ($187K). Holdings by trust down 28% to 5,177 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 22, 2026 |
| Apr 20–21, 2026 | Sale | Alberto Salamone (EVP, Ppbi Business) sold 30,000 shares between Apr 20 and Apr 21 at about $92.07 ($2.8M). Holdings down 38% to 48,025 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 22, 2026 |
| Apr 21, 2026 | Sale | Geoffrey Gates Scott (Director) sold 60,000 shares indirectly (by spouse) at about $94.33 ($5.7M). Holdings by spouse down 50% to 50,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 21, 2026 |
| Apr 21, 2026 | Sale | Rhea J. Posedel (Director) sold 8,787 shares at $96.02 ($844K). Holdings down 12% to 62,376 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 21, 2026 |
| Apr 21, 2026 | Sale | Vernon Rogers (Exec VP of Sales & Mktg.) sold 6,486 shares at $94.09 ($610K). Holdings down 4% to 152,716 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 21, 2026 |
| Apr 20, 2026 | Sale | Vernon Rogers (Exec VP of Sales & Mktg.) sold 5,000 shares at $90.00 ($450K). Holdings down 3% to 147,716 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 21, 2026 |
| Apr 20, 2026 | Sale | Vernon Rogers (Exec VP of Sales & Mktg.) sold 2,431 shares at $90.00 ($219K). Holdings down 2% to 159,202 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 20, 2026 |
| Apr 20, 2026 | Sale | Rhea J. Posedel (Director) sold 7,500 shares indirectly (by trust) at $88.09 ($661K). Holdings by trust down 2% to 396,979 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 20, 2026 |
| Apr 17, 2026 | Sale | Rhea J. Posedel (Director) sold 7,500 shares indirectly (by trust) at $82.00 ($615K). Holdings by trust down 2% to 404,479 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 17, 2026 |
| Apr 17, 2026 | Sale | Howard T. Slayen (Director) sold 25,000 shares at $85.00 ($2.1M). Holdings down 12% to 178,328 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 17, 2026 |
| Apr 16, 2026 | Sale | Laura Oliphant (Director) sold 1,716 shares at $81.54 ($140K). Holdings down 9% to 16,716 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 17, 2026 |
| Apr 16, 2026 | Sale | Vernon Rogers (Exec VP of Sales & Mktg.) sold 5,000 shares at $86.88 ($434K). Holdings down 3% to 161,633 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 17, 2026 |
| Apr 16, 2026 | Sale | Alistair N. Sporck (VP Contactor Business Unit) sold 2,000 shares at $81.88 ($164K). Holdings down 9% to 20,635 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 17, 2026 |
| Apr 16, 2026 | Sale | Laura Oliphant (Director) sold 4,665 shares indirectly (by trust) at $85.59 ($399K). Holdings by trust down 100% to 0 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 16, 2026 |
| Apr 16, 2026 | Sale | Rhea J. Posedel (Director) sold 15,000 shares indirectly (by trust) at $80.72 ($1.2M). Holdings by trust down 4% to 411,979 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 16, 2026 |
| Apr 14, 2026 | Sale | Donald P. Richmond II (CTO) sold 17,011 shares at $73.18 ($1.2M). Holdings down 9% to 181,512 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 15, 2026 |
| Apr 13–15, 2026 | Sale | Didier Wimmers (Executive VP of R&D) sold 5,400 shares between Apr 13 and Apr 15 at about $71.43 ($386K). Holdings down 34% to 10,659 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 15, 2026 |
| Apr 9, 2026 | Sale Amended filing | Geoffrey Gates Scott (Director) sold 40,000 shares indirectly (by spouse) at about $68.02 ($2.7M). Holdings by spouse down 29% to 100,000 shares. Not marked as a 10b5-1 plan trade. This amends a filing from Apr 10. | SEC filing Filed Apr 15, 2026 |
| Apr 10, 2026 | Sale | Gayn Erickson (CEO and Director) sold 152,824 shares directly and indirectly (by trust) at $70.58 ($10.8M). Direct holdings down 23% to 191,999 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 14, 2026 |
| Apr 10, 2026 | Sale | Alistair N. Sporck (VP Contactor Business Unit) sold 2,000 shares at $67.37 ($135K). Holdings down 8% to 22,855 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 14, 2026 |
| Apr 9, 2026 | Sale | Adil Engineer (President / COO) sold 3,728 shares at about $66.30 ($247K). Holdings down 8% to 41,441 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 14, 2026 |
| Apr 10, 2026 | Sale | Fariba Danesh (Director) sold 3,500 shares at $70.05 ($245K). Holdings down 21% to 13,143 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 13, 2026 |
| Apr 10, 2026 | Sale | Vernon Rogers (Exec VP of Sales & Mktg.) sold 10,888 shares at $70.00 ($762K). Holdings down 6% to 167,540 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 10, 2026 |
| Apr 9, 2026 | Sale | Adil Engineer (President / COO) sold 13,085 shares at about $68.19 ($892K). Holdings down 22% to 45,169 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 10, 2026 |
| Apr 9, 2026 | Sale | Donald P. Richmond II (CTO) sold 15,751 shares at $68.68 ($1.1M). Holdings down 7% to 199,245 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 10, 2026 |
| Apr 9, 2026 | Sale | Laura Oliphant (Director) sold 3,000 shares indirectly (by trust) at $68.36 ($205K). Holdings by trust down 39% to 4,665 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 10, 2026 |
| Apr 9, 2026 | Sale | Rhea J. Posedel (Director) sold 30,000 shares indirectly (by trust) at $70.00 ($2.1M). Holdings by trust down 7% to 426,979 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 10, 2026 |
| Feb 13, 2026 | Sale | Rhea J. Posedel (Director) sold 13,998 shares indirectly (by trust) at $30.02 ($420K). Holdings by trust down 3% to 456,979 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 13, 2026 |
| Feb 9, 2026 | Sale | Alistair N. Sporck (VP Contactor Business Unit) sold 3,000 shares at about $27.57 ($83K). Holdings down 11% to 25,153 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 10, 2026 |
| Jan 22, 2026 | Sale | Laura Oliphant (Director) sold 4,546 shares at about $31.40 ($143K). Holdings down 20% to 18,432 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 26, 2026 |
| Nov 5, 2025 | Sale | Howard T. Slayen (Director) sold 6,000 shares at about $25.73 ($154K). Holdings down 3% to 218,328 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 5, 2025 |
129 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
| Filed | Items | Tag | Source |
|---|---|---|---|
| Nov 2, 2026, 4:21 PM ET 8-K | Earnings released (Item 2.02) | SEC filing | |
| Oct 29, 2026, 4:07 PM ET 8-K | Executive or director change (Item 5.02) | SEC filing |
Red flags are objective triggers only: the item or form filed, never an opinion.
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