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Aehr Test Systems (AEHR)

Technology Semiconductor Equipment & Materials
80.00 $
+4.0% vs. previous close
Closing price · As of: 31. Jul 2026

Who owns Aehr Test Systems (AEHR)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 90.3% of the shares are freely tradable; institutional investors hold 73.3%.

Ownership Structure

Institutional ownership
73.3%
Insiders
4.6%
Float
90.3%
Short % of float
13.4%
Shares Outstanding
32Mio.

Largest Shareholders

Institutions

Institutions AEHR
Name Stake (%) Shares Change (%) Date
Vanguard Group Inc 7.43 2,337,433 +2.2 12/31/2025
BlackRock Inc 7.27 2,286,899 +7.5 03/31/2026
FMR Inc 6.81 2,142,639 -14.6 03/31/2026
Awm Investment Company Inc 5.07 1,593,971 +3.7 03/31/2026
T. Rowe Price Associates, Inc. 4.29 1,349,351 +3,824.4 03/31/2026
Vanguard Capital Management, LLC 4.08 1,281,857 +0.0 03/31/2026
The Goldman Sachs Group Inc 4.01 1,262,043 +616.9 03/31/2026
Baillie Gifford & Co Limited. 3.18 1,001,018 -22.4 03/31/2026

Funds

Funds AEHR
Name Stake (%) Shares Change (%) Date
Fidelity Small Cap Growth 4.52 1,422,081 +0.0 03/31/2026
Vanguard Total Stock Mkt Idx Inv 2.96 930,536 +0.2 04/30/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Insider Transactions

Insider Transactions
Date Person Role Type Shares Price Value
30. Jul 2026 Slayen Howard T Director Other 5,000 0.00
27. Jul 2026 Erickson Gayn President and CEO Other 1,057 77.48 81,896
27. Jul 2026 Rogers Vernon Exec VP of Sales & Mktg. Other 198 77.48 15,341
27. Jul 2026 Sporck Alistair N VP Contactor Business Unit Other 133 77.48 10,305
27. Jul 2026 Richmond Donald P. Ii CTO Other 102 77.48 7,903
27. Jul 2026 Engineer Adil Chief Operating Officer Other 142 77.48 11,002
21. Jul 2026 Scott Geoffrey Gates Director Other 2,874 0.00
20. Jul 2026 Sporck Alistair N VP Contactor Business Unit Other 334 81.05 27,071
16. Jul 2026 Scott Geoffrey Gates Director Sell 20,000 82.13 1,642,650
16. Jul 2026 Scott Geoffrey Gates Director Other 10,000 0.00
14. Jul 2026 Erickson Gayn President and CEO Other 3,447 72.01 248,218
14. Jul 2026 Richmond Donald P. Ii CTO Other 328 72.01 23,619
14. Jul 2026 Rogers Vernon Exec VP of Sales & Mktg. Other 573 72.01 41,262
14. Jul 2026 Rogers Vernon Exec VP of Sales & Mktg. Other 3,538 1.64 5,785
13. Jul 2026 Rogers Vernon Exec VP of Sales & Mktg. Other 588 72.60 42,689
13. Jul 2026 Rogers Vernon Exec VP of Sales & Mktg. Other 15,262 1.64 24,953
13. Jul 2026 Rogers Vernon Exec VP of Sales & Mktg. Other 21,200 1.64 34,662
13. Jul 2026 Sporck Alistair N VP Contactor Business Unit Other 209 72.60 15,173
13. Jul 2026 Siu Chris CFO Other 988 72.60 71,729
13. Jul 2026 Richmond Donald P. Ii CTO Other 423 72.60 30,710
13. Jul 2026 Erickson Gayn President and CEO Other 4,404 72.60 319,730
13. Jul 2026 Engineer Adil Chief Operating Officer Other 387 72.60 28,096
22. Apr 2026 Alistair N Sporck VP Sell 2,000 93.50 187,000
22. Apr 2026 Rhea J Posedel Director Sell 17,115 100.00 1,711,500
22. Apr 2026 Rhea J Posedel Director Sell 604 95.00 57,380
21. Apr 2026 Rhea J Posedel Director Sell 8,787 96.02 843,728
20. Apr 2026 Alberto Salamone EVP Sell 15,000 89.57 1,343,550
20. Apr 2026 Rhea J Posedel Director Sell 7,500 88.09 660,675

Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character.

View all insider transactions →

Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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