Aehr Test Systems (AEHR) Insider Trading
Over the last 3 months, AEHR insiders made 0 open-market buys and 42 sales, a net sale of -$41.4M (SEC Form 4). Over the last 6 months, 134 institutions increased and 93 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
42
Net (3m)
-$41.4M
Insider trades by month Buys Sells
Oct
Nov
Jan
Feb
Apr
May
Context3-month price +187.9%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 4, 2026 | WIMMERS DIDIERofficer: Executive VP of R&D | Tax | 332 | $114.59 |
| Jun 1, 2026 | Siu Chrisofficer: CFO | Tax | 350 | $93.62 |
| May 15, 2026 | Siu Chrisofficer: CFO | Sell | 1,600 | $106.78 |
| May 15, 2026 | SLAYEN HOWARD Tdirector | Sell | 6,819 | $104.73 |
| May 15, 2026 | Siu Chrisofficer: CFO | Sell | 470 | $108.00 |
| May 1, 2026 | SALAMONE ALBERTOofficer: EVP, PPBI BUSINESS | Tax | 204 | $93.07 |
| Apr 29, 2026 | SCOTT GEOFFREY GATESdirector: Director | Tax | 10,000 | — |
| Apr 27, 2026 | SPORCK ALISTAIR Nofficer: VP Contactor Business Unit | Tax | 133 | $88.48 |
| Apr 27, 2026 | ENGINEER ADILofficer: Chief Operating Officer | Tax | 143 | $88.48 |
| Apr 27, 2026 | Erickson Gayndirector, officer: President and CEO | Tax | 851 | $88.48 |
| Apr 27, 2026 | ROGERS VERNONofficer: Exec VP of Sales & Mktg. | Tax | 139 | $88.48 |
| Apr 27, 2026 | RICHMOND DONALD P. IIofficer: CTO | Tax | 102 | $88.48 |
| Apr 22, 2026 | POSEDEL RHEA Jdirector: Director | Sell | 604 | $95.00 |
| Apr 22, 2026 | SPORCK ALISTAIR Nofficer: VP Contactor Business Unit | Sell | 2,000 | $93.50 |
| Apr 22, 2026 | SALAMONE ALBERTOofficer: EVP, PPBI BUSINESS | Sell | 15,000 | $89.57 |
| Apr 22, 2026 | POSEDEL RHEA Jdirector: Director | Sell | 17,115 | $100.00 |
| Apr 21, 2026 | POSEDEL RHEA Jdirector: Director | Sell | 8,787 | $96.02 |
| Apr 21, 2026 | SCOTT GEOFFREY GATESdirector: Director | Sell | 50,000 | $95.00 |
| Apr 21, 2026 | SCOTT GEOFFREY GATESdirector: Director | Sell | 10,000 | $91.00 |
| Apr 21, 2026 | ROGERS VERNONofficer: Exec VP of Sales & Mktg. | Sell | 5,000 | $90.00 |
| Apr 21, 2026 | ROGERS VERNONofficer: Exec VP of Sales & Mktg. | Sell | 6,486 | $94.09 |
| Apr 20, 2026 | SPORCK ALISTAIR Nofficer: VP Contactor Business Unit | Tax | 341 | $83.86 |
| Apr 20, 2026 | ROGERS VERNONofficer: Exec VP of Sales & Mktg. | Sell | 2,431 | $90.00 |
| Apr 20, 2026 | POSEDEL RHEA Jdirector: Director | Sell | 7,500 | $88.09 |
| Apr 17, 2026 | SPORCK ALISTAIR Nofficer: VP Contactor Business Unit | Sell | 2,000 | $81.88 |
| Apr 17, 2026 | DANESH FARIBAdirector: Director | Option | 8,000 | $2.25 |
| Apr 17, 2026 | POSEDEL RHEA Jdirector: Director | Sell | 7,500 | $82.00 |
| Apr 17, 2026 | DANESH FARIBAdirector: Director | Sell | 8,000 | $82.63 |
| Apr 17, 2026 | OLIPHANT LAURAdirector: Director | Sell | 1,716 | $81.54 |
| Apr 17, 2026 | SLAYEN HOWARD Tdirector: Director | Sell | 25,000 | $85.00 |
Source: AEHR SEC Form 4 filings, latest Jun 4, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their AEHR positions over the last 6 months (SEC Form 13F).
Increased
134
New positions
82
Reduced
93
Sold out
45
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| FMR LLC | Reduced | 2.5M | Feb 17, 2026 |
| VANGUARD GROUP INC | Increased | 2.3M | Jan 29, 2026 |
| BLACKROCK, INC. | Increased | 2.3M | May 13, 2026 |
| FMR LLC | Reduced | 2.1M | May 15, 2026 |
| BLACKROCK, INC. | Increased | 2.1M | Feb 12, 2026 |
| AWM INVESTMENT COMPANY, INC. | Increased | 1.6M | May 15, 2026 |
| AWM INVESTMENT COMPANY, INC. | Reduced | 1.5M | Feb 13, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 1.3M | May 15, 2026 |
| BAILLIE GIFFORD & CO | Reduced | 1.3M | Jan 23, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 1.3M | May 15, 2026 |
| GOLDMAN SACHS GROUP INC | Increased | 1.3M | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 1.2M | Feb 17, 2026 |
| BAILLIE GIFFORD & CO | Reduced | 1.0M | May 8, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 918K | May 8, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 831K | Feb 17, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.