AEHR
Aehr Test System (AEHR)
NASDAQ
$55.72-$8.16 (-12.78%)
Price as of Oct 22, 2026 6:45 PM EDT
  • $3.4B
    Market Cap
  • 169.76%
    1-Year Change
  • Semiconductor Equipment & Materials
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
8.14%
2.7M
+372,643 (+14.01%)
Jun 30, 2026
VANGUARD GROUP INC
7.16%
2.3M
+49,243 (+2.11%)
Dec 31, 2025
BLACKROCK FUNDING, INC. /DE
6.27%
2.0M
+24,835 (+1.21%)
Dec 31, 2024
BLACKROCK INC.
5.83%
1.9M
-131,869 (-6.93%)
Jun 30, 2024
COLLABORATIVE HOLDINGS MANAGEMENT LP
4.70%
1.5M
+297,846 (+19.42%)
Dec 31, 2021
VANGUARD CAPITAL MANAGEMENT LLC
4.04%
1.3M
+38,493 (+2.92%)
Jun 30, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP
3.65%
1.2M
+374,800 (+31.46%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions356.2M (72.97%)
  • Mutual Funds129.4M (26.50%)
  • Insiders2.6M (0.52%)
  • Other0 (0.00%)

Insider Transactions

  • 0.52% (2.6M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 10
    Number of InsiderSelling (last 12 months)
  • $335.2M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
POSEDEL RHEA J
Director
Exempt
Oct 20, 2026
$0.00
18,000
$0.00
0
POSEDEL RHEA J
Director
Exempt
Oct 20, 2026
$31,860.00
18,000
$1.77
65,156
RICHMOND DONALD P. II
CTO
In Kind
Oct 12, 2026
$32,840.32
388
$84.64
186,728
ENGINEER ADIL
Chief Operating Officer
In Kind
Oct 12, 2026
$46,298.08
547
$84.64
45,942
ROGERS VERNON
Exec VP of Sales & Mktg.
In Kind
Oct 12, 2026
$36,056.64
426
$84.64
186,879
Erickson Gayn
President and CEO
In Kind
Oct 12, 2026
$226,412.00
2,675
$84.64
191,108
SPORCK ALISTAIR N
VP Contactor Business Unit
In Kind
Oct 02, 2026
$36,987.45
345
$107.21
22,148
ROGERS VERNON
Exec VP of Sales & Mktg.
In Kind
Oct 02, 2026
$51,031.96
476
$107.21
187,305
ENGINEER ADIL
Chief Operating Officer
In Kind
Oct 02, 2026
$66,470.20
620
$107.21
46,489
Siu Chris
CFO
In Kind
Oct 02, 2026
$124,792.44
1,164
$107.21
75,970
RICHMOND DONALD P. II
CTO
In Kind
Oct 02, 2026
$47,065.19
439
$107.21
187,116
Erickson Gayn
President and CEO
In Kind
Oct 02, 2026
$347,253.19
3,239
$107.21
193,783
SALAMONE ALBERTO
EVP, PPBI BUSINESS
In Kind
Oct 02, 2026
$59,608.76
556
$107.21
42,873
RICHMOND DONALD P. II
CTO
Other
Oct 01, 2026
$7,099.54
1,064
$6.67
187,631
Erickson Gayn
President and CEO
In Kind
Oct 01, 2026
$50,698.40
499
$101.60
197,022
ROGERS VERNON
Exec VP of Sales & Mktg.
Other
Oct 01, 2026
$10,849.49
1,626
$6.67
187,858
SALAMONE ALBERTO
EVP, PPBI BUSINESS
Other
Oct 01, 2026
$10,088.82
1,512
$6.67
43,474
RICHMOND DONALD P. II
CTO
In Kind
Oct 01, 2026
$7,721.60
76
$101.60
187,555
SPORCK ALISTAIR N
VP Contactor Business Unit
In Kind
Oct 01, 2026
$5,486.40
54
$101.60
22,493
ROGERS VERNON
Exec VP of Sales & Mktg.
In Kind
Oct 01, 2026
$7,823.20
77
$101.60
187,781
SALAMONE ALBERTO
EVP, PPBI BUSINESS
In Kind
Oct 01, 2026
$4,572.00
45
$101.60
43,429
Siu Chris
CFO
In Kind
Oct 01, 2026
$19,710.40
194
$101.60
77,134
SPORCK ALISTAIR N
VP Contactor Business Unit
Other
Oct 01, 2026
$8,147.12
1,221
$6.67
6,398
Erickson Gayn
President and CEO
Other
Oct 01, 2026
$7,026.14
1,053
$6.67
158,776
Siu Chris
CFO
Other
Oct 01, 2026
$7,266.35
1,089
$6.67
6,795
WIMMERS DIDIER
Executive VP of R&D
In Kind
Sep 03, 2026
$24,177.59
317
$76.27
12,379
ROGERS VERNON
Exec VP of Sales & Mktg.
Sell
Aug 17, 2026
$574,217.38
3,994
$143.77
186,232
SLAYEN HOWARD T
Director
Sell
Aug 14, 2026
$758,264.16
5,700
$133.03
140,667
ROGERS VERNON
Exec VP of Sales & Mktg.
Sell
Aug 14, 2026
$134,000.00
1,000
$134.00
191,226
POSEDEL RHEA J
Director
Sell
Aug 14, 2026
$836,220.00
5,973
$140.00
381,989