Form4insider filings, from the source

Company · CIK 0001040470 · SIC 3825 — Instruments For Meas & Testing of Electricity & Elec Signals · Nasdaq

AEHR TEST SYSTEMS · AEHR

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $18.9M · 13net −$18.9M
$10k$10k$1M$1M$100M$100MbuyssalesJun 27Jul 12Jul 27Aug 12Aug 27Sep 12Sep 27

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 3, 2026 FForm 4 →Sep 3, 9:17 pm EDTDidier WimmersExecutive VP of R&D317$76.27$24,17812,379—
Sep 1, 2026 FForm 4 →Sep 1, 6:02 pm EDTChris SiuCFO496$76.59$37,98977,328—
Aug 14, 2026 SForm 4 →Aug 18, 1:56 pm EDTVernon RogersExec VP of Sales & Mktg.5,994$141.34$847,217186,232−3.12%
Aug 14, 2026 GForm 4 →Aug 14, 6:00 pm EDTAdil EngineerChief Operating Officer500——46,477—
Aug 14, 2026 SForm 4 →Aug 14, 5:52 pm EDTHoward T SlayenDirector5,700$133.03$758,264140,667−3.89%
Aug 14, 2026 SForm 4 →Aug 14, 5:46 pm EDTRhea J PosedelDirector5,973$140.00$836,220381,989−1.54%
Aug 13, 2026 SForm 4 →Aug 14, 2:28 pm EDTAlberto SalamoneEVP, PPBI BUSINESS9,672$127.72$1,235,28841,962−18.7%
Aug 12, 2026 SForm 4 →Aug 13, 6:12 pm EDTGayn EricksonPresident and CEO, Director40,000$130.84$5,233,718157,723−20.2%
Aug 12, 2026 SForm 4 →Aug 13, 5:28 pm EDTRhea J PosedelDirector8,413$130.00$1,093,690387,962−2.12%
Aug 12, 2026 SForm 4 →Aug 13, 5:11 pm EDTGeoffrey Gates ScottDirector20,000$131.51$2,630,12010,000−66.7%
Aug 12, 2026 GForm 4 →Aug 13, 5:11 pm EDTGeoffrey Gates ScottDirector6,731——23,955—
Aug 12, 2026 SForm 4 →Aug 13, 5:10 pm EDTAdil EngineerChief Operating Officer15,000$131.02$1,965,37446,977−24.2%
Aug 12, 2026 MForm 4 →Aug 13, 5:10 pm EDTAdil EngineerChief Operating Officer15,000$9.45$141,75061,977—
Aug 12, 2026 SForm 4 →Aug 13, 5:09 pm EDTLaura OliphantDirector1,717$133.00$228,36116,100−9.64%
Aug 10, 2026 SForm 4 →Aug 11, 2:18 pm EDTAlistair N SporckVP Contactor Business Unit1,000$108.49$108,49022,547−4.25%
Aug 4, 2026 SForm 4 →Aug 6, 4:46 pm EDTAlistair N SporckVP Contactor Business Unit2,000$100.96$201,91723,547−7.83%
Aug 4, 2026 SForm 4 →Aug 4, 9:16 pm EDTHoward T SlayenDirector20,000$108.30$2,165,922146,367−12.0%
Aug 4, 2026 GForm 4 →Aug 4, 9:14 pm EDTLaura OliphantDirector500——17,817—
Aug 3, 2026 FForm 4 →Aug 3, 7:56 pm EDTAlberto SalamoneEVP, PPBI BUSINESS204$79.98$16,31651,634—
Jul 30, 2026 GForm 4 →Jul 30, 7:52 pm EDTHoward T SlayenDirector5,000——166,367—
Jul 27, 2026 FForm 4 →Jul 27, 9:11 pm EDTGayn EricksonPresident and CEO, Director1,057$77.48$81,896197,521—
Jul 27, 2026 FForm 4 →Jul 27, 9:08 pm EDTVernon RogersExec VP of Sales & Mktg.198$77.48$15,341192,226—
Jul 27, 2026 FForm 4 →Jul 27, 8:52 pm EDTAlistair N SporckVP Contactor Business Unit133$77.48$10,30525,547—
Jul 27, 2026 FForm 4 →Jul 27, 8:11 pm EDTDonald P. Richmond IICTO102$77.48$7,903186,567—
Jul 27, 2026 FForm 4 →Jul 27, 8:08 pm EDTAdil EngineerChief Operating Officer142$77.48$11,00246,977—
Jul 21, 2026 GForm 4 →Jul 21, 5:42 pm EDTGeoffrey Gates ScottDirector2,874——51,648—
Jul 20, 2026 FForm 4 →Jul 20, 7:19 pm EDTAlistair N SporckVP Contactor Business Unit334$81.05$27,07125,680—
Jul 16, 2026 SForm 4 →Jul 17, 2:23 pm EDTGeoffrey Gates ScottDirector20,000$82.13$1,642,65030,000−40.0%
Jul 16, 2026 GForm 4 →Jul 17, 2:23 pm EDTGeoffrey Gates ScottDirector10,000——30,686—
Jul 14, 2026 FForm 4 →Jul 15, 4:33 pm EDTGayn EricksonPresident and CEO, Director3,447$72.01$248,218198,578—
Jul 14, 2026 FForm 4 →Jul 14, 9:19 pm EDTDonald P. Richmond IICTO328$72.01$23,619186,669—
Jul 13, 2026 FMForm 4 →Jul 14, 6:49 pm EDTVernon RogersExec VP of Sales & Mktg.41,161$3.63$149,351192,424—
Jul 13, 2026 FForm 4 →Jul 13, 6:00 pm EDTAlistair N SporckVP Contactor Business Unit209$72.60$15,17326,014—
Jul 13, 2026 FForm 4 →Jul 13, 5:51 pm EDTChris SiuCFO988$72.60$71,72977,824—
Jul 13, 2026 FForm 4 →Jul 13, 5:42 pm EDTDonald P. Richmond IICTO423$72.60$30,710186,997—
Jul 13, 2026 FForm 4 →Jul 13, 5:23 pm EDTGayn EricksonPresident and CEO, Director4,404$72.60$319,730202,025—
Jul 13, 2026 FForm 4 →Jul 13, 5:06 pm EDTAdil EngineerChief Operating Officer387$72.60$28,09647,119—
Jul 1, 2026 AForm 4 →Jul 2, 7:49 pm EDTDidier WimmersExecutive VP of R&D2,369——12,696—
Jul 1, 2026 AFForm 4 →Jul 2, 7:37 pm EDTChris SiuCFO15,596$79.51$266,51778,812—
Jul 1, 2026 AFForm 4 →Jul 2, 7:31 pm EDTAlistair N SporckVP Contactor Business Unit11,006$82.91$204,95226,223—
Jul 1, 2026 AFForm 4 →Jul 2, 7:20 pm EDTAlberto SalamoneEVP, PPBI BUSINESS8,035$80.42$161,56751,838—
Jul 1, 2026 AFForm 4 →Jul 2, 7:01 pm EDTDonald P. Richmond IICTO11,058$82.64$208,590187,420—
Jul 1, 2026 AFForm 4 →Jul 2, 6:52 pm EDTVernon RogersExec VP of Sales & Mktg.11,108$82.51$210,409153,585—
Jul 1, 2026 AFForm 4 →Jul 2, 6:42 pm EDTGayn EricksonPresident and CEO, Director73,801$82.71$2,151,689206,429—
Jul 1, 2026 AFForm 4 →Jul 2, 6:27 pm EDTAdil EngineerChief Operating Officer11,894$82.04$217,40547,506—
Jul 1, 2026 AForm 4 →Jul 2, 5:37 pm EDTFariba DaneshDirector1,658——14,801—
Jul 1, 2026 AForm 4 →Jul 2, 5:32 pm EDTGeoffrey Gates ScottDirector1,658——54,522—
Jul 1, 2026 AForm 4 →Jul 2, 5:26 pm EDTLaura OliphantDirector1,658——18,317—
Jul 1, 2026 AForm 4 →Jul 2, 5:22 pm EDTHoward T SlayenDirector1,658——171,367—
Jul 1, 2026 AForm 4 →Jul 2, 5:18 pm EDTRhea J PosedelDirector1,895——47,156—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 12, 2026 MForm 4 →Aug 13, 5:10 pm EDTAdil EngineerChief Operating Officer15,000——28,088—
Jul 13, 2026 MForm 4 →Jul 14, 6:49 pm EDTVernon RogersExec VP of Sales & Mktg.40,000——0—