SEC Form 4 · Updated Daily
AEHR
— AEHR TEST SYSTEMS OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| ANDERSON ROBERT R | Director | 762,075 | 2017-10-24 | M |
| PATEL MUKESH | Director | 455,676 | 2014-11-24 | P |
| Schneider John M. | Director | 371,442 | 2020-07-14 | A |
| Erickson Gayn | Director · Officer | 191,108 | 2026-10-12 | F |
| ROGERS VERNON | Officer | 186,879 | 2026-10-12 | F |
| RICHMOND DONALD P. II | Officer | 186,728 | 2026-10-12 | F |
| LARSON GARY L | Officer | 150,665 | 2015-08-14 | S |
| SLAYEN HOWARD T | Director | 140,667 | 2026-08-14 | S |
| HENDRICKSON DAVID S | Officer | 84,783 | 2023-07-17 | S |
| Siu Chris | Officer | 74,983 | 2026-10-12 | F |
| POSEDEL RHEA J | Director | 65,156 | 2026-10-20 | M |
| ENGINEER ADIL | Officer | 45,942 | 2026-10-12 | F |
| ELDER WILLIAM W R | Director | 43,927 | 2017-11-06 | M |
| SALAMONE ALBERTO | Officer | 42,873 | 2026-10-02 | F |
| SPINK KENNETH B. | Officer | 36,511 | 2023-07-17 | M |
| Ray-Chaudhuri Avijit K. | Officer | 28,318 | 2024-10-27 | F |
| SCOTT GEOFFREY GATES | Director | 23,955 | 2026-08-12 | G |
| SPORCK ALISTAIR N | Officer | 21,853 | 2026-10-12 | F |
| FUCCI DAVID | Reporting Owner | 20,454 | 2020-09-02 | M |
| OLIPHANT LAURA | Director | 16,100 | 2026-08-12 | S |
| DANESH FARIBA | Director | 14,801 | 2026-07-01 | A |
| ALLISON MARK D. | Officer | 13,882 | 2017-07-11 | A |
| WIMMERS DIDIER | Officer | 13,690 | 2026-10-01 | J |
| ANDERSON LARRY | Officer | 13,000 | 2013-04-01 | J |
| Perkins Gregory M | Officer | 10,000 | 2008-04-23 | M |
| BUCK CARL N | Reporting Owner | 4,698 | 2019-04-30 | M |
| SANO KUNIO | Officer | 1,000 | 2020-02-12 | M |
| BUSTOS JOEL | Officer | 768 | 2008-10-01 | J |
| ROSATI MARIO M | Director | 0 | 2023-06-08 | S |
| Brannan Michael A. | Reporting Owner | 0 | 2022-01-26 | S |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-20 | POSEDEL RHEA J | Option exercise (derivative) | 18,000 | $0.00 | 0 |
| 2026-10-20 | POSEDEL RHEA J | Option exercise | 18,000 | $1.77 | 65,156 |
| 2026-10-12 | Erickson Gayn | Tax withholding | 2,675 | $84.64 | 191,108 |
| 2026-10-12 | ENGINEER ADIL | Tax withholding | 547 | $84.64 | 45,942 |
| 2026-10-12 | RICHMOND DONALD P. II | Tax withholding | 388 | $84.64 | 186,728 |
| 2026-10-12 | ROGERS VERNON | Tax withholding | 426 | $84.64 | 186,879 |
| 2026-10-12 | SPORCK ALISTAIR N | Tax withholding | 295 | $84.64 | 21,853 |
| 2026-10-12 | Siu Chris | Tax withholding | 987 | $84.64 | 74,983 |
| 2026-10-02 | SPORCK ALISTAIR N | Tax withholding | 345 | $107.21 | 22,148 |
| 2026-10-02 | Siu Chris | Tax withholding | 1,164 | $107.21 | 75,970 |
| 2026-10-02 | SALAMONE ALBERTO | Tax withholding | 556 | $107.21 | 42,873 |
| 2026-10-02 | ROGERS VERNON | Tax withholding | 476 | $107.21 | 187,305 |
| 2026-10-02 | RICHMOND DONALD P. II | Tax withholding | 439 | $107.21 | 187,116 |
| 2026-10-02 | ENGINEER ADIL | Tax withholding | 620 | $107.21 | 46,489 |
| 2026-10-02 | Erickson Gayn | Tax withholding | 3,239 | $107.21 | 193,783 |
| 2026-10-01 | ENGINEER ADIL | Tax withholding | 98 | $101.60 | 47,109 |
| 2026-10-01 | ENGINEER ADIL | J | 730 | $6.67 | 47,207 |
| 2026-10-01 | RICHMOND DONALD P. II | Tax withholding | 76 | $101.60 | 187,555 |
| 2026-10-01 | RICHMOND DONALD P. II | J | 1,064 | $6.67 | 187,631 |
| 2026-10-01 | ROGERS VERNON | Tax withholding | 77 | $101.60 | 187,781 |
| 2026-10-01 | ROGERS VERNON | J | 1,626 | $6.67 | 187,858 |
| 2026-10-01 | SALAMONE ALBERTO | Tax withholding | 45 | $101.60 | 43,429 |
| 2026-10-01 | SALAMONE ALBERTO | J | 1,512 | $6.67 | 43,474 |
| 2026-10-01 | WIMMERS DIDIER | Tax withholding | 54 | $101.60 | 13,636 |
| 2026-10-01 | WIMMERS DIDIER | J | 1,311 | $6.67 | 13,690 |
| 2026-10-01 | SPORCK ALISTAIR N | J | 1,221 | $6.67 | 6,398 |
| 2026-10-01 | SPORCK ALISTAIR N | Tax withholding | 54 | $101.60 | 22,493 |
| 2026-10-01 | Erickson Gayn | J | 1,053 | $6.67 | 158,776 |
| 2026-10-01 | Erickson Gayn | Tax withholding | 499 | $101.60 | 197,022 |
| 2026-10-01 | Siu Chris | J | 1,089 | $6.67 | 6,795 |
| 2026-10-01 | Siu Chris | Tax withholding | 194 | $101.60 | 77,134 |
| 2026-09-03 | WIMMERS DIDIER | Tax withholding | 317 | $76.27 | 12,379 |
| 2026-09-01 | Siu Chris | Tax withholding | 496 | $76.59 | 77,328 |
| 2026-08-17 | ROGERS VERNON | Open-market sale | 3,994 | $143.77 | 186,232 |
| 2026-08-14 | POSEDEL RHEA J | Open-market sale | 5,973 | $140.00 | 381,989 |
| 2026-08-14 | SLAYEN HOWARD T | Open-market sale | 5,700 | $133.03 | 140,667 |
| 2026-08-14 | ENGINEER ADIL | Gift | 500 | $0.00 | 46,477 |
| 2026-08-14 | ROGERS VERNON | Open-market sale | 1,000 | $139.00 | 190,226 |
| 2026-08-14 | ROGERS VERNON | Open-market sale | 1,000 | $134.00 | 191,226 |
| 2026-08-13 | SALAMONE ALBERTO | Open-market sale | 5,472 | $127.50 | 41,962 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.