Aehr Test Systems
AEHR
89.37
-2.77
-3.01%
Aehr Test Systems
US · AEHR
#2391 by market cap
Listed 1970
89.37
-2.77
-3.01%
Live - 5344 symbols - heartbeat 361s ago
· 2026-10-08 08:30
Pre-market
86.90
-2.76%
After-hours
90.60
+1.38%
Overnight
88.84
-0.59%
- Market cap
- 2.92B
- P/E (TTM)i
- -388.57
- P/Bi
- 13.30
- EPSi
- -0.23
- Div yieldi
- 0.00%
- 52W posi
- 55%
Reader sentiment
Are you bullish or bearish on AEHR?
Anonymous reader poll. Unscientific, not investment advice.
✦ Quant Ownership Signal how this is computed
Accumulating
- The number of reporting institutions increased by 3 in the most recent period (2026/Q3).
- Total institutional ownership rose 0.7 percentage points.
Institutional ownership
- Held by institutions
- 75.37% +0.66pp
- Institutions
- 319 +3
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
DivergingInstitutions added shares last reporting period, and the stock has seen net outflows in main-fund flow over the last 20 trading sessions - the two are pointing in different directions.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Mutual Fund46.32%
Hedge Fund15.38%
Private Company6.24%
Public Company6.09%
Individual/Insider4.14%
Government Pension Fund0.73%
VC/PE Fund0.29%
Family Office/Trust0.20%
Insurance Company0.13%
Other20.49%
Top holders as of 2026-06-30
BlackRock
8.15% · 2.66M sh
Jane Street Group, LLC
5.05% · 1.65M sh
Vanguard Capital Management, LLC
4.70% · 1.53M sh
D. E. Shaw & Co., L.P.
3.61% · 1.18M sh
Two Sigma Investments, LP
3.57% · 1.16M sh
FMR
3.09% · 1.01M sh
Vanguard Portfolio Management, LLC
2.96% · 966.66K sh
Geode Capital Management, LLC
2.68% · 875.51K sh
T. Rowe Price Group, Inc.
2.53% · 825.16K sh
The Goldman Sachs Group, Inc.
2.30% · 750.86K sh
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 8 buys · 42 sells
| Name | Role | Stake |
|---|---|---|
| Rhea Posedel | Founder & Independent Chairman | 1.29% |
| Gayn Erickson | Chief Executive Officer | 0.76% |
| Donald Richmond | Chief Technology Officer | 0.51% |
| Vernon Rogers | Officer | 0.50% |
| Howard Slayen | Independent Director | 0.41% |
| Geoffrey Scott | Independent Director | 0.24% |
| Alberto Salamone | EVP, ppbi Business | 0.13% |
| Chris Siu | CFO, Executive VP of Finance & Secretary | 0.10% |
| Adil Engineer | Chief Operating Officer | 0.06% |
| Didier Wimmers | Officer | 0.04% |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-10-01 | Gayn Erickson | Chief Executive Officer | Sale to Issuer | -3,239 | $107.21 |
| 2026-10-01 | Chris Siu | CFO, Executive VP of Finance & Secretary | Sale to Issuer | -1,164 | $107.21 |
| 2026-10-01 | Donald Richmond | Chief Technology Officer | Sale to Issuer | -439 | $107.21 |
| 2026-10-01 | Vernon Rogers | Officer | Sale to Issuer | -476 | $107.21 |
| 2026-10-01 | Adil Engineer | Chief Operating Officer | Sale to Issuer | -620 | $107.21 |
| 2026-10-01 | Alistair Sporck | -- | Sale to Issuer | -345 | $107.21 |
| 2026-10-01 | Alberto Salamone | EVP, ppbi Business | Sale to Issuer | -556 | $107.21 |
| 2026-09-30 | Gayn Erickson | Chief Executive Officer | Sale to Issuer | -499 | $101.60 |
| 2026-09-30 | Gayn Erickson | Chief Executive Officer | Other Acquisition | +1,053 | $6.67 |
| 2026-09-30 | Chris Siu | CFO, Executive VP of Finance & Secretary | Sale to Issuer | -194 | $101.60 |
| 2026-09-30 | Chris Siu | CFO, Executive VP of Finance & Secretary | Other Acquisition | +1,089 | $6.67 |
| 2026-09-30 | Donald Richmond | Chief Technology Officer | Sale to Issuer | -76 | $101.60 |
| 2026-09-30 | Donald Richmond | Chief Technology Officer | Other Acquisition | +1,064 | $6.67 |
| 2026-09-30 | Vernon Rogers | Officer | Sale to Issuer | -77 | $101.60 |
| 2026-09-30 | Vernon Rogers | Officer | Other Acquisition | +1,626 | $6.67 |
| 2026-09-30 | Adil Engineer | Chief Operating Officer | Sale to Issuer | -98 | $101.60 |
| 2026-09-30 | Adil Engineer | Chief Operating Officer | Other Acquisition | +730 | $6.67 |
| 2026-09-30 | Alistair Sporck | -- | Sale to Issuer | -54 | $101.60 |
| 2026-09-30 | Alistair Sporck | -- | Other Acquisition | +1,221 | $6.67 |
| 2026-09-30 | Alberto Salamone | EVP, ppbi Business | Sale to Issuer | -45 | $101.60 |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-08 08:30:02 · For reference only, not investment advice and not tailored to your situation.