AEHR TEST SYS AEHR
COM · Common Stock · CUSIP 00760J108 · ISIN US00760J1088
Semiconductor manufacturing support company
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($2.8m this quarter). Holder counts are more reliable. Shares outstanding: 27.8m as of 2022-12-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $20.05. Options: 18 managers hold calls ($47.4m notional), 16 hold puts ($21.0m).
Trends to Q4 2022
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 85 |
| Q4 2022 | 129 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $8.5m | $9.2m | 1.09 |
| Q4 2022 | $47.4m | $21.0m | 0.44 |
Biggest buyers
| Hood River Capital Management LLC | New | +1.4m |
| GOLDMAN SACHS GROUP INC | Added | +1.1m |
| Driehaus Capital Management LLC | Added | +610.4k |
| Point72 Asset Management, L.P. | Added | +384.6k |
| Sculptor Capital LP | New | +263.8k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +248.5k |
| MORGAN STANLEY | Added | +222.0k |
| ARDSLEY ADVISORY PARTNERS LP | Added | +207.0k |
| ROYCE & ASSOCIATES LP | Added | +144.8k |
| Lisanti Capital Growth, LLC | New | +139.2k |
Biggest sellers
| Ameritas Advisory Services, LLC | Sold out | -470.3k |
| GROUP ONE TRADING LLC | Reduced | -246.9k |
| JANE STREET GROUP, LLC | Reduced | -218.3k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -217.5k |
| Jetstream Capital LLC | Reduced | -190.0k |
| Weiss Asset Management LP | Sold out | -171.6k |
| SIMPLEX TRADING, LLC | Reduced | -169.8k |
| OSAIC HOLDINGS, INC. | Reduced | -149.7k |
| Informed Momentum Co LLC | Reduced | -144.5k |
| Crawford Lake Capital Management, LLC | Reduced | -105.5k |
Biggest calls
| Caption Management, LLC | New | $10.6m525.0k shares |
| CITADEL ADVISORS LLC | Added | $6.8m336.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $6.6m329.5k shares |
| SIMPLEX TRADING, LLC | Added | $4.5m221.6k shares |
| GROUP ONE TRADING LLC | Added | $4.1m202.2k shares |
| JANE STREET GROUP, LLC | Added | $3.5m175.3k shares |
| WOLVERINE TRADING, LLC | Added | $2.8m141.4k shares |
| PEAK6 Investments LLC | Added | $2.4m118.8k shares |
| Crawford Lake Capital Management, LLC | Added | $2.0m100.0k shares |
| Parallax Volatility Advisers, L.P. | Added | $1.6m77.5k shares |
Biggest puts
| Sculptor Capital LP | New | $5.3m263.8k shares |
| BARCLAYS PLC | First filing | $4.3m211.8k shares |
| CITADEL ADVISORS LLC | Reduced | $3.1m152.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.0m97.9k shares |
| Parallax Volatility Advisers, L.P. | Added | $1.9m96.9k shares |
| PEAK6 Investments LLC | Reduced | $1.1m54.1k shares |
| SIMPLEX TRADING, LLC | Added | $737.0k36.7k shares |
| Cubist Systematic Strategies, LLC | New | $601.0k29.9k shares |
| WOLVERINE TRADING, LLC | Added | $507.0k25.2k shares |
| BANK OF AMERICA CORP /DE/ | New | $448.2k22.3k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| JANE STREET GROUP, LLC 13G · passive investor new · filed 2026-07-29 | 5.1% |
Fell to 5% or below in the last year: AWM Investment Company, Inc. (1.1%, 2026-08-14), FMR LLC (3.2%, 2026-08-06), VANGUARD GROUP INC (0.0%, 2026-03-26), BAILLIE GIFFORD & CO (4.3%, 2026-02-09)
Insider purchases and sales in Q4 2022
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2021 | 0 | — | 0 | — | — |
| Q2 2021 | 0 | — | 0 | — | — |
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 0 | — | 8 | $14.1m | — |
| Q1 2022 | 0 | — | 2 | $220.3k | — |
| Q2 2022 | 0 | — | 1 | $47.1k | — |
| Q3 2022 | 0 | — | 2 | $1.0m | — |
| Q4 2022 | 0 | — | 9 | $5.9m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2022-12-01 | OLIPHANT LAURA Director · by Trust | Sold | $93.8k3.5k shares |
| 2022-11-23 | OLIPHANT LAURA Director · by Trust | Sold | $51.3k1.9k shares |
| 2022-11-15 | Erickson Gayn President and CEO, director | Sold | $1.8m69.7k shares |
| 2022-11-15 | ROGERS VERNON Exec. VP Sales and Marketing | Sold | $526.4k20.0k shares |
| 2022-11-15 | SCOTT GEOFFREY GATES Director | Sold | $378.1k15.0k shares |
| 2022-11-15 | SLAYEN HOWARD T Director | Sold | $153.2k6.0k shares |
| 2022-11-14 | SLAYEN HOWARD T Director | Sold | $553.3k22.1k shares |
| 2022-11-11 | SLAYEN HOWARD T Director | Sold | $497.4k19.9k shares |
| 2022-11-11 | OLIPHANT LAURA Director · by Trust | Sold | $168.3k6.7k shares |
| 2022-10-28 | RICHMOND DONALD P. II VP of Engineering | Sold | $460.1k21.9k shares |
| 2022-10-25 | OLIPHANT LAURA Director · by Trust | Sold | $23.9k1.1k shares |
| 2022-10-24 | OLIPHANT LAURA Director · by Trust | Sold | $127.7k5.8k shares |
| 2022-10-20 | SLAYEN HOWARD T Director | Sold | $360.0k18.0k shares |
| 2022-10-20 | DANESH FARIBA Director | Sold | $46.5k2.3k shares |
| 2022-10-18 | SPINK KENNETH B. VP of Finance and CFO · by Trust | Sold | $559.5k30.0k shares |
| 2022-10-10 | DANESH FARIBA Director | Sold | $25.0k1.6k shares |
| 2022-10-10 | ROSATI MARIO M Director | Sold | $21.0k1.3k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2022
| Manager | Shares | Change |
|---|---|---|
| AWM Investment Company, Inc. 4.78% of their portfolio | 1.6m $33.1m | Unchanged |
| Hood River Capital Management LLC 0.99% of their portfolio | 1.4m $27.3m | New |
| FMR LLC 0.00% of their portfolio | 1.3m $25.9m | Reduced -60.6k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 1.3m $25.7m | Added +1.1m |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.1m $22.8m | Added +3.6k |
| Driehaus Capital Management LLC 0.27% of their portfolio | 891.6k $17.9m | Added +610.4k |
| Point72 Asset Management, L.P. 0.05% of their portfolio | 721.6k $14.5m | Added +384.6k |
| OBERWEIS ASSET MANAGEMENT INC/ 2.60% of their portfolio | 607.6k $12.2m | Added +99.3k |
| BlackRock Inc. 0.00% of their portfolio | 501.3k $10.1m | Added +117.0k |
| ARDSLEY ADVISORY PARTNERS LP 2.04% of their portfolio | 401.0k $8.1m | Added +207.0k |
| ROYCE & ASSOCIATES LP 0.08% of their portfolio | 374.4k $7.5m | Added +144.8k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 365.7k $7.4m | Added +248.5k |
| MORGAN STANLEY 0.00% of their portfolio | 344.5k $6.9m | Added +222.0k |
| D L CARLSON INVESTMENT GROUP INC 1.37% of their portfolio | 318.3k $6.4m | Added +96.6k |
| Sculptor Capital LP 0.10% of their portfolio | 263.8k $5.3m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 243.7k $4.9m | Added +8.6k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.03% of their portfolio | 219.9k $4.4m | Reduced -40.1k |
| Informed Momentum Co LLC 0.69% of their portfolio | 165.1k $3.3m | Reduced -144.5k |
| STATE STREET CORP 0.00% of their portfolio | 156.2k $3.1m | Added +78.9k |
| ESSEX INVESTMENT MANAGEMENT CO LLC 0.46% of their portfolio | 148.3k $3.0m | Reduced -31.8k |
| NAVELLIER & ASSOCIATES INC 0.58% of their portfolio | 140.5k $2.8m | Added +3.1k |
| Lisanti Capital Growth, LLC 0.38% of their portfolio | 139.2k $2.8m | New |
| Pier Capital, LLC 0.46% of their portfolio | 138.8k $2.8m | New |
| Invesco Ltd. 0.00% of their portfolio | 138.5k $2.8m | New |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.02% of their portfolio | 131.7k $2.6m | New |
| BARCLAYS PLC 0.00% of their portfolio | 121.6k $2.4m | First filing |
| Cubist Systematic Strategies, LLC 0.02% of their portfolio | 116.3k $2.3m | Added +102.4k |
| Jetstream Capital LLC 5.02% of their portfolio | 110.0k $2.2m | Reduced -190.0k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 90.4k $1.8m | Added +18.8k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.00% of their portfolio | 89.7k $1.8m | New |
| Clear Sky Carbon Solutions Investment Management, LLC 0.80% of their portfolio | 89.0k $1.8m | Reduced -14.0k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 87.6k $1.8m | New |
| Roubaix Capital, LLC 1.40% of their portfolio | 86.0k $1.7m | New |
| Crawford Lake Capital Management, LLC 5.35% of their portfolio | 85.3k $1.7m | Reduced -105.5k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 83.7k $1.7m | Reduced -84.1k |
| LPL Financial LLC 0.00% of their portfolio | 83.2k $1.7m | Added +47.6k |
| WOLVERINE TRADING, LLC 0.03% of their portfolio | 81.9k $1.6m | Added +15.7k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 80.0k $1.6m | Unchanged |
| SIMPLEX TRADING, LLC 0.07% of their portfolio | 74.2k $1.5m | Reduced -169.8k |
| Global IMC LLC 0.37% of their portfolio | 70.6k $1.4m | Reduced -56.0k |
| GROUP ONE TRADING LLC 0.05% of their portfolio | 69.3k $1.4m | Reduced -246.9k |
| Portolan Capital Management, LLC 0.14% of their portfolio | 68.2k $1.4m | New |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 67.9k $1.4m | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 63.2k $1.3m | Reduced -218.3k |
| Swiss National Bank 0.00% of their portfolio | 63.0k $1.3m | New |
| HERITAGE INVESTORS MANAGEMENT CORP 0.05% of their portfolio | 56.9k $1.1m | Reduced -3.6k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 56.2k $1.1m | Added +12.9k |
| Legato Capital Management LLC 0.21% of their portfolio | 54.9k $1.1m | New |
| Alpha Paradigm Partners, LLC 0.38% of their portfolio | 46.0k $924.0k | New |
| RAYMOND JAMES & ASSOCIATES 0.00% of their portfolio | 42.6k $855.4k | New |
| Walleye Capital LLC 0.02% of their portfolio | 41.5k $833.7k | New |
| BOOTHBAY FUND MANAGEMENT, LLC 0.02% of their portfolio | 40.1k $805.9k | Reduced -5.5k |
| THOMPSON SIEGEL & WALMSLEY LLC 0.01% of their portfolio | 38.4k $773.0k | New |
| Virtu Financial LLC 0.10% of their portfolio | 36.2k $728.0k | New |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 36.0k $724.0k | Reduced -217.5k |
| Raymond James Financial Services Advisors, Inc. 0.00% of their portfolio | 32.8k $660.0k | Reduced -18.6k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 32.5k $653.1k | Added +8.4k |
| UBS Group AG 0.00% of their portfolio | 31.8k $640.0k | Added +4.4k |
| GREENWOOD CAPITAL ASSOCIATES LLC 0.10% of their portfolio | 31.6k $636.0k | Added +4.8k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 30.7k $617.5k | New |
| HBK Sorce Advisory LLC 0.00% of their portfolio | 30.0k $32.0k | Added +15.0k |
| THOMPSON DAVIS & CO., INC. 0.85% of their portfolio | 29.7k $596.4k | Reduced -13.4k |
| Atria Wealth Solutions, Inc. 0.01% of their portfolio | 27.7k $556.0k | Unchanged |
| Artemis Investment Management LLP 0.01% of their portfolio | 25.5k $514.1k | New |
| Triatomic Management LP 1.70% of their portfolio | 24.5k $492.4k | New |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 23.8k $477.9k | Added +9.2k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 23.7k $476.0k | Reduced -149.7k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 22.7k $456.2k | New |
| ADVISORY RESEARCH INC 0.04% of their portfolio | 21.9k $440.7k | Not comparable |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 21.7k $436.7k | New |
| Concentrum Wealth Management 0.38% of their portfolio | 21.0k $421.3k | Reduced -520 |
| Parallax Volatility Advisers, L.P. 0.01% of their portfolio | 18.9k $379.3k | New |
| Jump Financial, LLC 0.02% of their portfolio | 18.6k $373.6k | New |
| SEI INVESTMENTS CO 0.00% of their portfolio | 16.6k $334.4k | Reduced -14.1k |
| Graham Capital Management, L.P. 0.01% of their portfolio | 15.7k $315.6k | New |
| B. Riley Wealth Advisors, Inc. 0.01% of their portfolio | 15.5k $312.3k | Reduced -9.7k |
| TOWNSQUARE CAPITAL LLC 0.01% of their portfolio | 15.5k $311.1k | New |
| JFG Wealth Management, LLC 0.10% of their portfolio | 15.0k $301.5k | Reduced -20.0k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 14.7k $294.0k | Added +2.7k |
| Belvedere Trading LLC 0.16% of their portfolio | 14.1k $282.8k | Reduced -36.3k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 13.2k $265.0k | Unchanged |
| BIT Capital GmbH 0.05% of their portfolio | 13.0k $261.3k | Reduced -5.0k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 12.8k $258.0k | Reduced -2.7k |
| Kestra Advisory Services, LLC 0.00% of their portfolio | 12.7k $255.3k | New |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 0.02% of their portfolio | 12.3k $248.1k | New |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 11.4k $229.1k | New |
| Calamos Advisors LLC 0.00% of their portfolio | 11.4k $228.9k | New |
| LMR Partners LLP 0.00% of their portfolio | 11.3k $227.5k | New |
| Dakota Wealth Management 0.02% of their portfolio | 11.2k $225.5k | New |
| Steward Partners Investment Advisory, LLC 0.00% of their portfolio | 11.2k $225.1k | Added +2.7k |
| CHAPIN DAVIS, INC. 0.13% of their portfolio | 10.8k $217.7k | First filing |
| Gotham Asset Management, LLC 0.01% of their portfolio | 10.0k $201.5k | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 10.0k $201.2k | Unchanged |
| Aquatic Capital Management LLC 0.01% of their portfolio | 9.0k $181.0k | New |
| Jefferies Financial Group Inc. 0.00% of their portfolio | 8.5k $170.8k | New |
| NewEdge Advisors, LLC 0.00% of their portfolio | 7.8k $8.1k | New |
| Legal & General Group Plc 0.00% of their portfolio | 7.0k $139.7k | New |
| Truvestments Capital LLC 0.05% of their portfolio | 4.4k $88.2k | Added +3.2k |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 4.2k $84.4k | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 4.0k $80.0k | Reduced -2.8k |