WIMMERS DIDIER
- Shares
- 10.33K
- % company
- 0.03%
- Price
- $114.59
- Value
- $1,183,371
Filed Jun 3, 2026
Methodology published · Market data, model notes, and corrections process are public · Data policy · Corrections policy
NASDAQ · TECHNOLOGY · Holders
Aehr Test Systems (AEHR) Institutional Ownership & Insider Trading History
Recent insider purchases and sales for AEHR from Form 4 filings. Institutional holdings surface here when ownership sources publish.
Section freshness
Price Jun 26, 4:00 PM EDT · Statements Feb 27, 7:00 PM EST
Source timingDetailsHide
Data freshness
Prices update fastest. Fundamentals, analyst data, and news update on their own schedules, so check these timestamps before comparing signals.
Price time means the latest available trade or regular-market close. Other times show when that section was checked or published.
PriceLive
Last traded •
Source: Market data provider
Fundamentalsevery 1 day
Provider checked •
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Analystevery 1 day
Provider checked •
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Latest item •
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Ownership read
AEHR insider sentiment: Net selling.
53 sales and 0 purchases appear in the recent Form 4 filings. Use the filters below to separate real buying and selling from option exercises, gifts, awards, and tax withholding.
Insider flow
AEHR
Purchases—
Sales5.95M
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
—
Institutional data pending
Insider stance
Net selling
$449.57M sold / — bought
Latest filing
Jun 3, 2026
Most recent holder or insider filing date
Filings shown
120
0 holder / 120 insider
- Holder rows
- Pending
- Market data source
- Latest filing
- Jun 3, 2026
- Most recent holder or insider filing date
- Increased / initiated
- Pending
- 0 decreased
- Insider rows
- 120
- Market data source
Recent insider transactions
Aehr Test Systems (AEHR) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
Siu Chris
- Shares
- 69.92K
- % company
- 0.22%
- Price
- $93.62
- Value
- $6,545,910
Filed Jun 1, 2026
Siu Chris
- Shares
- 5.71K
- % company
- 0.02%
- Price
- $106.78
- Value
- $609,287
Filed May 14, 2026
Siu Chris
- Shares
- 70.27K
- % company
- 0.22%
- Price
- $108.00
- Value
- $7,589,160
Filed May 14, 2026
SLAYEN HOWARD T
- Shares
- 169.71K
- % company
- 0.54%
- Price
- $104.73
- Value
- $17,773,624
Filed May 13, 2026
SALAMONE ALBERTO
- Shares
- 47.82K
- % company
- 0.15%
- Price
- $93.07
- Value
- $4,450,700
Filed May 1, 2026
SCOTT GEOFFREY GATES
- Shares
- 40.69K
- % company
- 0.13%
- Price
- Non-cash
- Value
- Non-cash
Filed Apr 29, 2026
SCOTT GEOFFREY GATES
- Shares
- 40.69K
- % company
- 0.13%
- Price
- Withheld
- Value
- Withheld
Filed Apr 29, 2026
SPORCK ALISTAIR N
- Shares
- 20.16K
- % company
- 0.06%
- Price
- $88.48
- Value
- $1,783,845
Filed Apr 27, 2026
ROGERS VERNON
- Shares
- 147.58K
- % company
- 0.47%
- Price
- $88.48
- Value
- $13,057,613
Filed Apr 27, 2026
RICHMOND DONALD P. II
- Shares
- 181.41K
- % company
- 0.58%
- Price
- $88.48
- Value
- $16,051,157
Filed Apr 27, 2026
Erickson Gayn
- Shares
- 184.66K
- % company
- 0.59%
- Price
- $88.48
- Value
- $16,338,717
Filed Apr 27, 2026
ENGINEER ADIL
- Shares
- 40.91K
- % company
- 0.13%
- Price
- $88.48
- Value
- $3,619,894
Filed Apr 27, 2026
POSEDEL RHEA J
- Shares
- 396.38K
- % company
- 1.26%
- Price
- $95.00
- Value
- $37,655,625
Filed Apr 22, 2026
POSEDEL RHEA J
- Shares
- 45.26K
- % company
- 0.14%
- Price
- $100.00
- Value
- $4,526,100
Filed Apr 22, 2026
SPORCK ALISTAIR N
- Shares
- 5.18K
- % company
- 0.02%
- Price
- $93.50
- Value
- $484,024
Filed Apr 22, 2026
SLAYEN HOWARD T
- Shares
- 176.53K
- % company
- 0.56%
- Price
- Non-cash
- Value
- Non-cash
Filed Apr 22, 2026
SALAMONE ALBERTO
- Shares
- 48.02K
- % company
- 0.15%
- Price
- $94.56
- Value
- $4,541,244
Filed Apr 21, 2026
SCOTT GEOFFREY GATES
- Shares
- 50.00K
- % company
- 0.16%
- Price
- $95.00
- Value
- $4,750,000
Filed Apr 21, 2026
SCOTT GEOFFREY GATES
- Shares
- 50.69K
- % company
- 0.16%
- Price
- $91.00
- Value
- $4,612,426
Filed Apr 21, 2026
POSEDEL RHEA J
- Shares
- 62.38K
- % company
- 0.20%
- Price
- $96.02
- Value
- $5,989,549
Filed Apr 21, 2026
ROGERS VERNON
- Shares
- 152.72K
- % company
- 0.49%
- Price
- $94.09
- Value
- $14,369,110
Filed Apr 21, 2026
SALAMONE ALBERTO
- Shares
- 63.02K
- % company
- 0.20%
- Price
- $89.57
- Value
- $5,645,149
Filed Apr 20, 2026
ROGERS VERNON
- Shares
- 147.72K
- % company
- 0.47%
- Price
- $90.00
- Value
- $13,294,440
Filed Apr 20, 2026
ROGERS VERNON
- Shares
- 159.20K
- % company
- 0.51%
- Price
- $90.00
- Value
- $14,328,180
Filed Apr 20, 2026
POSEDEL RHEA J
- Shares
- 396.98K
- % company
- 1.26%
- Price
- $88.09
- Value
- $34,969,880
Filed Apr 20, 2026
SPORCK ALISTAIR N
- Shares
- 20.29K
- % company
- 0.06%
- Price
- $83.86
- Value
- $1,701,855
Filed Apr 18, 2026
POSEDEL RHEA J
- Shares
- 404.48K
- % company
- 1.29%
- Price
- $82.00
- Value
- $33,167,278
Filed Apr 17, 2026
SLAYEN HOWARD T
- Shares
- 178.33K
- % company
- 0.57%
- Price
- $85.00
- Value
- $15,157,880
Filed Apr 17, 2026
DANESH FARIBA
- Shares
- —
- % company
- —
- Price
- No cash value
- Value
- No cash value
Filed Apr 16, 2026
DANESH FARIBA
- Shares
- 13.14K
- % company
- 0.04%
- Price
- $82.63
- Value
- $1,086,006
Filed Apr 16, 2026
DANESH FARIBA
- Shares
- 21.14K
- % company
- 0.07%
- Price
- $2.25
- Value
- $47,572
Filed Apr 16, 2026
| # | Insider | % company | Action | Shares | Price | Value | Filing date |
|---|---|---|---|---|---|---|---|
| 1 | WIMMERS DIDIER | 0.03% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 10.33K | $114.59 | $1,183,371 | Jun 3, 2026 |
| 2 | Siu Chris | 0.22% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 69.92K | $93.62 | $6,545,910 | Jun 1, 2026 |
| 3 | Siu Chris | 0.02% | SaleOpen-market or direct sale reported on Form 4. | 5.71K | $106.78 | $609,287 | May 14, 2026 |
| 4 | Siu Chris | 0.22% | SaleOpen-market or direct sale reported on Form 4. | 70.27K | $108.00 | $7,589,160 | May 14, 2026 |
| 5 | SLAYEN HOWARD T | 0.54% | SaleOpen-market or direct sale reported on Form 4. | 169.71K | $104.73 | $17,773,624 | May 13, 2026 |
| 6 | SALAMONE ALBERTO | 0.15% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 47.82K | $93.07 | $4,450,700 | May 1, 2026 |
| 7 | SCOTT GEOFFREY GATES | 0.13% | GiftGift transfer. Usually non-cash and not an open-market sale. | 40.69K | Non-cash | Non-cash | Apr 29, 2026 |
| 8 | SCOTT GEOFFREY GATES | 0.13% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 40.69K | Withheld | Withheld | Apr 29, 2026 |
| 9 | SPORCK ALISTAIR N | 0.06% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 20.16K | $88.48 | $1,783,845 | Apr 27, 2026 |
| 10 | ROGERS VERNON | 0.47% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 147.58K | $88.48 | $13,057,613 | Apr 27, 2026 |
| 11 | RICHMOND DONALD P. II | 0.58% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 181.41K | $88.48 | $16,051,157 | Apr 27, 2026 |
| 12 | Erickson Gayn | 0.59% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 184.66K | $88.48 | $16,338,717 | Apr 27, 2026 |
| 13 | ENGINEER ADIL | 0.13% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 40.91K | $88.48 | $3,619,894 | Apr 27, 2026 |
| 14 | POSEDEL RHEA J | 1.26% | SaleOpen-market or direct sale reported on Form 4. | 396.38K | $95.00 | $37,655,625 | Apr 22, 2026 |
| 15 | POSEDEL RHEA J | 0.14% | SaleOpen-market or direct sale reported on Form 4. | 45.26K | $100.00 | $4,526,100 | Apr 22, 2026 |
| 16 | SPORCK ALISTAIR N | 0.02% | SaleOpen-market or direct sale reported on Form 4. | 5.18K | $93.50 | $484,024 | Apr 22, 2026 |
| 17 | SLAYEN HOWARD T | 0.56% | GiftGift transfer. Usually non-cash and not an open-market sale. | 176.53K | Non-cash | Non-cash | Apr 22, 2026 |
| 18 | SALAMONE ALBERTO | 0.15% | SaleOpen-market or direct sale reported on Form 4. | 48.02K | $94.56 | $4,541,244 | Apr 21, 2026 |
| 19 | SCOTT GEOFFREY GATES | 0.16% | SaleOpen-market or direct sale reported on Form 4. | 50.00K | $95.00 | $4,750,000 | Apr 21, 2026 |
| 20 | SCOTT GEOFFREY GATES | 0.16% | SaleOpen-market or direct sale reported on Form 4. | 50.69K | $91.00 | $4,612,426 | Apr 21, 2026 |
| 21 | POSEDEL RHEA J | 0.20% | SaleOpen-market or direct sale reported on Form 4. | 62.38K | $96.02 | $5,989,549 | Apr 21, 2026 |
| 22 | ROGERS VERNON | 0.49% | SaleOpen-market or direct sale reported on Form 4. | 152.72K | $94.09 | $14,369,110 | Apr 21, 2026 |
| 23 | SALAMONE ALBERTO | 0.20% | SaleOpen-market or direct sale reported on Form 4. | 63.02K | $89.57 | $5,645,149 | Apr 20, 2026 |
| 24 | ROGERS VERNON | 0.47% | SaleOpen-market or direct sale reported on Form 4. | 147.72K | $90.00 | $13,294,440 | Apr 20, 2026 |
| 25 | ROGERS VERNON | 0.51% | SaleOpen-market or direct sale reported on Form 4. | 159.20K | $90.00 | $14,328,180 | Apr 20, 2026 |
| 26 | POSEDEL RHEA J | 1.26% | SaleOpen-market or direct sale reported on Form 4. | 396.98K | $88.09 | $34,969,880 | Apr 20, 2026 |
| 27 | SPORCK ALISTAIR N | 0.06% | Tax withholdingShares withheld to cover tax obligations. Usually administrative, not an open-market sale. | 20.29K | $83.86 | $1,701,855 | Apr 18, 2026 |
| 28 | POSEDEL RHEA J | 1.29% | SaleOpen-market or direct sale reported on Form 4. | 404.48K | $82.00 | $33,167,278 | Apr 17, 2026 |
| 29 | SLAYEN HOWARD T | 0.57% | SaleOpen-market or direct sale reported on Form 4. | 178.33K | $85.00 | $15,157,880 | Apr 17, 2026 |
| 30 | DANESH FARIBA | — | Option exerciseDerivative exercise or conversion before any separate sale row. | — | No cash value | No cash value | Apr 16, 2026 |
| 31 | DANESH FARIBA | 0.04% | SaleOpen-market or direct sale reported on Form 4. | 13.14K | $82.63 | $1,086,006 | Apr 16, 2026 |
| 32 | DANESH FARIBA | 0.07% | Option exerciseDerivative exercise or conversion before any separate sale row. | 21.14K | $2.25 | $47,572 | Apr 16, 2026 |
Showing 32 of 120 matching Form 4 rows. Percent of company uses current shares outstanding when available.Load more insiders
Frequently asked
Common questions.
Who are the largest AEHR shareholders?
Aehr Test Systems (AEHR) institutional holders are ranked by reported share count when ownership data publishes filing rows.
What is institutional ownership of AEHR?
Aehr Test Systems (AEHR) institutional ownership appears when filing-based market data returns holder rows. TECHi does not fill unavailable ownership fields with placeholder shareholders.
Where can I see Aehr Test Systems insider transactions?
Aehr Test Systems (AEHR) has 120 Form 4 insider transactions on file, most recently on Jun 3, 2026, separated into purchases, sales, option exercises, awards, gifts, and tax withholding so administrative transactions are distinguished from open-market trades.
Are AEHR insiders buying or selling?
Recent AEHR insider activity reads Net selling: 53 sales and 0 purchases. Awards, gifts, conversions, and tax withholding are listed separately because they do not carry the same signal as open-market trades.
Who is the most active AEHR insider?
Erickson Gayn is the most active AEHR insider by absolute share movement, with 2.75 million shares moving across the filing history. Review the action labels before treating that activity as buying or selling.