As of September 09, 2026, the three largest insider holders of AEHR are Rhea J Posedel (Director, 478.67K shares), Gayn Erickson (President And Ceo, 438.92K shares), Rhea J Posedel (Director, 381.99K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Rhea J Posedel | Director | 0 | 381,989 | 381,989 | 23.3% | 14 Aug, 2026 |
| 2 | Kenneth B. Spink | Vp Of Finance And Cfo | 97,678 | 109,866 | 207,544 | 12.7% | 17 Jul, 2023 |
| 3 | Donald P. Ii Richmond | Cto | 186,567 | 0 | 186,567 | 11.4% | 27 Jul, 2026 |
| 4 | Vernon Rogers | Exec Vp Of Sales Mktg. | 186,232 | 0 | 186,232 | 11.4% | 18 Aug, 2026 |
| 5 | Gayn Erickson | President And Ceo | 0 | 157,723 | 157,723 | 9.6% | 13 Aug, 2026 |
| 6 | Howard T Slayen | Director | 140,667 | 0 | 140,667 | 8.6% | 14 Aug, 2026 |
| 7 | David S Hendrickson | Former Cto | 84,783 | 0 | 84,783 | 5.2% | 19 Jul, 2023 |
| 8 | Chris Siu | Cfo | 77,328 | 0 | 77,328 | 4.7% | 01 Sep, 2026 |
| 9 | Adil Engineer | Chief Operating Officer | 46,477 | 0 | 46,477 | 2.8% | 14 Aug, 2026 |
| 10 | Alberto Salamone | Evp, Ppbi Business | 41,962 | 0 | 41,962 | 2.6% | 14 Aug, 2026 |
| 11 | Geoffrey Gates Scott | Director | 0 | 33,955 | 33,955 | 2.1% | 13 Aug, 2026 |
| 12 | Avijit K. Ray-Chaudhuri | Executive Vp Of Rd | 28,318 | 0 | 28,318 | 1.7% | 29 Oct, 2024 |
| 13 | Alistair N Sporck | Vp Contactor Business Unit | 22,547 | 0 | 22,547 | 1.4% | 11 Aug, 2026 |
| 14 | Laura Oliphant | Director | 16,100 | 0 | 16,100 | 1.0% | 13 Aug, 2026 |
| 15 | Fariba Danesh | Director | 14,801 | 0 | 14,801 | 0.9% | 02 Jul, 2026 |
| 16 | Didier Wimmers | Executive Vp Of Rd | 12,379 | 0 | 12,379 | 0.8% | 03 Sep, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 01 Sep, 2026 | Chris Siu | Cfo | Disposed F | 496 | $76.59 | $37.99K | 77,328 | Direct |
| 14 Aug, 2026 | Vernon Rogers | Exec Vp Of Sales Mktg. | Disposed S | 1,000 | $134.00 | $134.00K | 191,226 | Direct |
| 14 Aug, 2026 | Vernon Rogers | Exec Vp Of Sales Mktg. | Disposed S | 1,000 | $139.00 | $139.00K | 190,226 | Direct |
| 17 Aug, 2026 | Vernon Rogers | Exec Vp Of Sales Mktg. | Disposed S | 3,994 | $143.77 | $574.22K | 186,232 | Direct |
| 14 Aug, 2026 | Howard T Slayen | Director | Disposed S | 5,700 | $133.03 | $758.26K | 140,667 | Direct |
| 14 Aug, 2026 | Rhea J Posedel | Director | Disposed S | 5,973 | $140.00 | $836.22K | 381,989 | Indirect |
| 14 Aug, 2026 | Adil Engineer | Chief Operating Officer | Disposed G | 500 | $0.00 | $0 | 46,477 | Direct |
| 13 Aug, 2026 | Alberto Salamone | Evp, Ppbi Business | Disposed S | 4,200 | $128.00 | $537.60K | 47,434 | Direct |
| 13 Aug, 2026 | Alberto Salamone | Evp, Ppbi Business | Disposed S | 5,472 | $127.50 | $697.69K | 41,962 | Direct |
| 12 Aug, 2026 | Adil Engineer | Chief Operating Officer | Acquired M | 15,000 | $9.45 | $141.75K | 61,977 | Direct |
| 12 Aug, 2026 | Gayn Erickson | President And Ceo | Disposed S | 1,548 | $132.27 | $204.75K | 196,175 | Indirect |
| 12 Aug, 2026 | Rhea J Posedel | Director | Disposed S | 8,413 | $130.00 | $1.09Mn | 387,962 | Indirect |
| 12 Aug, 2026 | Laura Oliphant | Director | Disposed S | 1,717 | $133.00 | $228.36K | 16,100 | Direct |
| 12 Aug, 2026 | Geoffrey Gates Scott | Director | Disposed G | 6,731 | $0.00 | $0 | 23,955 | Indirect |
| 12 Aug, 2026 | Geoffrey Gates Scott | Director | Disposed S | 20,000 | $131.51 | $2.63Mn | 10,000 | Indirect |
| 12 Aug, 2026 | Gayn Erickson | President And Ceo | Disposed S | 38,452 | $130.79 | $5.03Mn | 157,723 | Indirect |
| 12 Aug, 2026 | Adil Engineer | Chief Operating Officer | Disposed S | 7,500 | $130.95 | $982.16K | 54,477 | Direct |
| 12 Aug, 2026 | Adil Engineer | Chief Operating Officer | Disposed S | 7,500 | $131.10 | $983.21K | 46,977 | Direct |
| 12 Aug, 2026 | Adil Engineer | Chief Operating Officer | Disposed M | 7,500 | $0.00 | $0 | 31,330 | Direct |
| 12 Aug, 2026 | Adil Engineer | Chief Operating Officer | Disposed M | 7,500 | $0.00 | $0 | 28,088 | Direct |