AEHR
AEHR TEST SYSTEMS
Instruments For Meas & Testing of Electricity & Elec SignalsNasdaqNon-accelerated filer<br>Smaller reporting company
Total Trades
90
Buys
3
Sells
79
Largest Trade
$1M+
Insiders
15
Institutional Funds
114
Inst. Value
$1M+
Activist Filings
16
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| POSEDEL RHEA J | Director | SELL | $100K–$500K | 14K | $30.02 | Feb 13, 2026 |
| SPORCK ALISTAIR N | VP Contactor Busin… | SELL | $50K–$100K | 3K | $27.57 | Feb 10, 2026 |
| OLIPHANT LAURA | Director | SELL | $100K–$500K | 5K | $31.40 | Jan 26, 2026 |
| SLAYEN HOWARD T | Director | SELL | $100K–$500K | 6K | $25.73 | Nov 5, 2025 |
| OLIPHANT LAURA | Director | SELL | $100K–$500K | 5K | $21.50 | Jul 25, 2025 |
| POSEDEL RHEA J | Director | SELL | $100K–$500K | 18K | $19.83 | Jul 24, 2025 |
| POSEDEL RHEA J | Director | EXERCISE | $15K–$50K | 18K | $2.40 | Jul 24, 2025 |
| SPORCK ALISTAIR N | VP Contactor Busin… | SELL | $15K–$50K | 3K | $14.13 | Jul 19, 2025 |
| SALAMONE ALBERTO | EVP, PPBI BUSINESS | SELL | $15K–$50K | 5K | $9.08 | May 12, 2025 |
| SLAYEN HOWARD T | Director | BUY | $100K–$500K | 20K | $15.50 | Aug 3, 2024 |
| RICHMOND DONALD P. II | CTO | SELL | $15K–$50K | 1K | $17.39 | Jan 20, 2024 |
| Erickson Gayn | President and CEO | SELL | $50K–$100K | 5K | $17.39 | Jan 20, 2024 |
| ROGERS VERNON | Exec VP of Sales &… | SELL | $15K–$50K | 1K | $17.39 | Jan 20, 2024 |
| Erickson Gayn | President and CEO | SELL | $15K–$50K | 1K | $17.24 | Jan 18, 2024 |
| ROGERS VERNON | Exec VP of Sales &… | SELL | $1K–$15K | 244 | $17.24 | Jan 18, 2024 |
| RICHMOND DONALD P. II | CTO | SELL | $1K–$15K | 180 | $17.24 | Jan 17, 2024 |
| Ray-Chaudhuri Avijit K. | Executive VP of R&D | BUY | $50K–$100K | 3K | $17.87 | Jan 13, 2024 |
| SPORCK ALISTAIR N | VP | SELL | $15K–$50K | 955 | $37.65 | Oct 17, 2023 |
| SLAYEN HOWARD T | Director | BUY | $15K–$50K | 700 | $40.20 | Oct 12, 2023 |
| RICHMOND DONALD P. II | VP of Engineering | SELL | $1M+ | 30K | $48.76 | Aug 11, 2023 |
| SCOTT GEOFFREY GATES | Director | SELL | $500K+ | 14K | $50.91 | Aug 4, 2023 |
| OLIPHANT LAURA | Director | EXERCISE | $15K–$50K | 10K | $1.59 | Aug 2, 2023 |
| OLIPHANT LAURA | Director | SELL | $500K+ | 11K | $51.75 | Aug 2, 2023 |
| SLAYEN HOWARD T | Director | SELL | $100K–$500K | 5K | $52.82 | Jul 31, 2023 |
| SLAYEN HOWARD T | Director | SELL | $500K+ | 15K | $51.91 | Jul 27, 2023 |
| SCOTT GEOFFREY GATES | Director | SELL | $100K–$500K | 10K | $48.25 | Jul 25, 2023 |
| ROGERS VERNON | Exec. VP Sales and… | SELL | $1M+ | 40K | $50.24 | Jul 20, 2023 |
| POSEDEL RHEA J | Director | SELL | $1M+ | 100K | $51.85 | Jul 19, 2023 |
| SPINK KENNETH B. | VP of Finance and … | SELL | $1M+ | 37K | $51.39 | Jul 19, 2023 |
| SPINK KENNETH B. | VP of Finance and … | EXERCISE | $50K–$100K | 37K | $1.88 | Jul 19, 2023 |
| HENDRICKSON DAVID S | Former CTO | SELL | $1M+ | 28K | $51.45 | Jul 19, 2023 |
| Erickson Gayn | President and CEO | SELL | $1M+ | 124K | $51.29 | Jul 19, 2023 |
| Erickson Gayn | President and CEO | SELL | $1M+ | 50K | $45.00 | Jul 17, 2023 |
| ROSATI MARIO M | Director | SELL | $50K–$100K | 2K | $40.95 | Jun 12, 2023 |
| POSEDEL RHEA J | Director | SELL | $500K+ | 18K | $29.00 | May 19, 2023 |
| POSEDEL RHEA J | Director | EXERCISE | $15K–$50K | 18K | $1.68 | May 19, 2023 |
| SPORCK ALISTAIR N | VP | SELL | $15K–$50K | 960 | $27.08 | May 9, 2023 |
| SCOTT GEOFFREY GATES | Director | SELL | $500K+ | 30K | $28.21 | Apr 10, 2023 |
| Erickson Gayn | President and CEO | SELL | $1M+ | 50K | $40.00 | Mar 27, 2023 |
| SPINK KENNETH B. | VP of Finance and … | SELL | $500K+ | 25K | $35.22 | Mar 3, 2023 |
| ROSATI MARIO M | Director | SELL | $1M+ | 98K | $36.42 | Feb 9, 2023 |
| RICHMOND DONALD P. II | VP of Engineering | SELL | $1M+ | 30K | $35.66 | Feb 8, 2023 |
| ROSATI MARIO M | Director | SELL | $1M+ | 53K | $36.19 | Feb 7, 2023 |
| ROSATI MARIO M | Director | SELL | $1M+ | 50K | $36.25 | Feb 6, 2023 |
| ROSATI MARIO M | Director | EXERCISE | $100K–$500K | 64K | $2.14 | Feb 2, 2023 |
| ROSATI MARIO M | Director | SELL | $1M+ | 91K | $34.37 | Feb 2, 2023 |
| OLIPHANT LAURA | Director | SELL | $15K–$50K | 504 | $33.89 | Feb 2, 2023 |
| SCOTT GEOFFREY GATES | Director | SELL | $500K+ | 25K | $33.89 | Feb 1, 2023 |
| ROGERS VERNON | Exec. VP Sales and… | SELL | $1M+ | 38K | $35.39 | Jan 31, 2023 |
| Erickson Gayn | President and CEO | SELL | $1M+ | 50K | $35.00 | Jan 26, 2023 |
🔓Seeing ranges? Sign in for exact trade values — free forever
Institutional Ownership
13F filings as of Dec 31, 2025 · 114 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| AWM Investment Company, Inc. | 1.5M | $1M+ | SH |
| Halter Ferguson Financial Inc. | 642K | $1M+ | SH |
| STATE STREET CORP | 624K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 595K | $1M+ | SH |
| NEXT CENTURY GROWTH INVESTORS LLC | 553K | $1M+ | SH |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 496K | $1M+ | SH |
| KENNEDY CAPITAL MANAGEMENT LLC | 360K | $1M+ | SH |
| Sculptor Capital LP | 300K | $1M+ | SH |
| BAILLIE GIFFORD & CO | 298K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 238K | $1M+ | SH |
| Pier Capital, LLC | 212K | $1M+ | SH |
| TUDOR INVESTMENT CORP ET AL | 182K | $1M+ | SH |
| BARD ASSOCIATES INC | 180K | $1M+ | SH |
| MORGAN STANLEY | 175K | $1M+ | SH |
| JANE STREET GROUP, LLC | 120K | $1M+ | SH |
| Penbrook Management LLC | 115K | $1M+ | SH |
| Squarepoint Ops LLC | 100K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 96K | $1M+ | SH |
| Point72 Asset Management, L.P. | 82K | $1M+ | SH (Call) |
| KLCM Advisors, Inc. | 75K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 9, 2026
4.3%
1.3M shares
SC 13G/A · Nov 10, 2025
5.1%
1.5M shares
SC 13G/A · Nov 5, 2025
9.0%
2.7M shares
SC 13G/A · Jul 8, 2025
5.0%
1.5M shares
SC 13G/A · May 12, 2025
11.3%
3.4M shares
SC 13G · May 7, 2025
5.3%
1.6M shares
SC 13G/A · Nov 12, 2024
7.2%
2.1M shares
SC 13G/A · Nov 7, 2024
10.3%
3.1M shares
SC 13G · Nov 7, 2024
8.9%
2.6M shares
SC 13G · Nov 4, 2024
7.2%
2.1M shares
The Vanguard Group - 23-1945930
SC 13G · Feb 13, 2024
5.2%
1.5M shares
SC 13G · Jan 26, 2024
7.2%
2.1M shares
SC 13G/A · Apr 11, 2023
4.8%
1.3M shares
SC 13G · Feb 14, 2023
5.9%
1.6M shares
Collaborative Holdings Master Fund LP
SC 13G/A · Feb 14, 2023
0.0%
0 shares
Collaborative Holdings Master Fund LP
SC 13G/A · Feb 14, 2022
5.7%
1.5M shares