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 ($215.2k this quarter). Holder counts are more reliable. Shares outstanding: 28.3m as of 2023-03-31, 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 ≈ $41.26. Options: 18 managers hold calls ($61.7m notional), 16 hold puts ($41.6m).
Trends to Q2 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 85 |
| Q4 2022 | 129 |
| Q1 2023 | 145 |
| Q2 2023 | 153 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 77 | 38 |
| Q1 2023 | 85 | 69 |
| Q2 2023 | 94 | 76 |
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 |
| Q1 2023 | $58.4m | $39.1m | 0.67 |
| Q2 2023 | $61.7m | $41.6m | 0.68 |
Biggest buyers
| BlackRock Inc. | Added | +1.3m |
| STATE STREET CORP | Added | +388.9k |
| D. E. Shaw & Co., Inc. | Added | +315.6k |
| Driehaus Capital Management LLC | Added | +315.0k |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC | New | +292.4k |
| VANGUARD GROUP INC | Added | +276.1k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +265.4k |
| NORTHERN TRUST CORP | Added | +188.1k |
| OBERWEIS ASSET MANAGEMENT INC/ | Added | +174.0k |
| PICTON MAHONEY ASSET MANAGEMENT | New | +154.3k |
Biggest sellers
| AMERIPRISE FINANCIAL INC | Reduced | -1.1m |
| FMR LLC | Reduced | -1.0m |
| GOLDMAN SACHS GROUP INC | Reduced | -540.7k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -441.3k |
| RENAISSANCE TECHNOLOGIES LLC | Sold out | -294.5k |
| D L CARLSON INVESTMENT GROUP INC | Reduced | -221.0k |
| Point72 Asset Management, L.P. | Reduced | -195.2k |
| ARDSLEY ADVISORY PARTNERS LP | Sold out | -185.0k |
| Hood River Capital Management LLC | Reduced | -149.3k |
| Nishkama Capital, LLC | Sold out | -142.7k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $19.7m477.2k shares |
| CITADEL ADVISORS LLC | Reduced | $12.9m312.7k shares |
| JANE STREET GROUP, LLC | Reduced | $5.3m128.8k shares |
| Caption Management, LLC | Unchanged | $5.2m125.0k shares |
| Cubist Systematic Strategies, LLC | Reduced | $4.4m106.3k shares |
| PEAK6 Investments LLC | Reduced | $3.6m87.0k shares |
| GROUP ONE TRADING LLC | Added | $2.7m64.6k shares |
| CAPITAL FUND MANAGEMENT S.A. | New | $2.6m62.9k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.2m53.8k shares |
| XR Securities LLC | Reduced | $1.4m33.7k shares |
Biggest puts
| CITADEL ADVISORS LLC | Reduced | $12.9m312.1k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $8.2m198.7k shares |
| Caption Management, LLC | Unchanged | $5.2m125.0k shares |
| Cubist Systematic Strategies, LLC | Reduced | $2.7m65.5k shares |
| GROUP ONE TRADING LLC | Added | $2.6m62.1k shares |
| G2 Investment Partners Management LLC | New | $2.1m50.0k shares |
| CAPITAL FUND MANAGEMENT S.A. | New | $2.0m48.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.0m48.0k shares |
| JANE STREET GROUP, LLC | Reduced | $1.8m42.7k shares |
| D. E. Shaw & Co., Inc. | New | $1.2m30.0k 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 Q2 2023
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 |
|---|---|---|---|---|---|
| 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 | — |
| Q1 2023 | 0 | — | 11 | $25.4m | $2.0m |
| Q2 2023 | 0 | — | 4 | $1.5m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-06-08 | ROSATI MARIO M Director | Sold | $49.4k1.2k shares |
| 2023-06-06 | ROSATI MARIO M Director | Sold | $21.9k541 shares |
| 2023-05-17 | POSEDEL RHEA J Director | Sold | $522.0k18.0k shares |
| 2023-05-05 | SPORCK ALISTAIR N VP, CONTACTOR BUSINESS UNIT | Sold | $26.0k960 shares |
| 2023-04-06 | SCOTT GEOFFREY GATES Director | Sold | $846.3k30.0k 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, Q2 2023
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.00% of their portfolio | 1.8m $75.5m | Added +1.3m |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.5m $60.1m | Added +276.1k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 1.4m $58.2m | Reduced -540.7k |
| Hood River Capital Management LLC 1.71% of their portfolio | 1.4m $57.5m | Reduced -149.3k |
| Driehaus Capital Management LLC 0.70% of their portfolio | 1.3m $55.6m | Added +315.0k |
| AWM Investment Company, Inc. 7.20% of their portfolio | 1.3m $53.1m | Reduced -42.1k |
| FMR LLC 0.00% of their portfolio | 890.8k $36.7m | Reduced -1.0m |
| OBERWEIS ASSET MANAGEMENT INC/ 4.38% of their portfolio | 873.1k $36.0m | Added +174.0k |
| LORD, ABBETT & CO. LLC 0.06% of their portfolio | 789.5k $32.6m | Added +131.6k |
| D. E. Shaw & Co., Inc. 0.04% of their portfolio | 596.3k $24.6m | Added +315.6k |
| STATE STREET CORP 0.00% of their portfolio | 553.1k $22.8m | Added +388.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 519.0k $21.4m | Added +265.4k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 448.1k $18.5m | Added +119.9k |
| MORGAN STANLEY 0.00% of their portfolio | 437.3k $18.0m | Added +51.4k |
| NEXT CENTURY GROWTH INVESTORS LLC 1.16% of their portfolio | 292.7k $12.1m | Added +4.1k |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC 0.94% of their portfolio | 292.4k $12.1m | New |
| ROYCE & ASSOCIATES LP 0.11% of their portfolio | 275.0k $11.3m | Added +34.7k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 259.3k $10.7m | Reduced -1.1m |
| GROUP ONE TRADING LLC 0.43% of their portfolio | 243.9k $10.1m | Reduced -3.6k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 242.0k $10.0m | Added +188.1k |
| AGF MANAGEMENT LTD 0.06% of their portfolio | 215.2k $8.9m | Unchanged |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 193.2k $8.0m | Reduced -43.4k |
| PICTON MAHONEY ASSET MANAGEMENT 0.31% of their portfolio | 154.3k $6.4m | New |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.04% of their portfolio | 146.4k $6.0m | Added +20.7k |
| Pier Capital, LLC 0.83% of their portfolio | 139.7k $5.8m | Added +32.5k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 132.8k $5.5m | New |
| DISCOVERY CAPITAL MANAGEMENT, LLC / CT 0.64% of their portfolio | 132.6k $5.5m | Reduced -13.8k |
| Invesco Ltd. 0.00% of their portfolio | 124.5k $5.1m | Added +14.2k |
| Lisanti Capital Growth, LLC 0.61% of their portfolio | 106.8k $4.4m | Reduced -104.3k |
| ESSEX INVESTMENT MANAGEMENT CO LLC 0.61% of their portfolio | 106.2k $4.4m | Added +12.4k |
| CAPITAL FUND MANAGEMENT S.A. 0.07% of their portfolio | 104.9k $4.3m | New |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 102.2k $4.2m | Reduced -195.2k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 97.8k $4.0m | Added +13.3k |
| Informed Momentum Co LLC 0.70% of their portfolio | 92.2k $3.8m | Reduced -23 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 90.2k $3.7m | Added +8.6k |
| ADVISORY RESEARCH INC 0.42% of their portfolio | 79.1k $3.3m | Added +50.2k |
| Symmetry Investments LP 0.94% of their portfolio | 79.0k $3.3m | New |
| LPL Financial LLC 0.00% of their portfolio | 77.0k $3.2m | Reduced -30.6k |
| PFS INVESTMENTS INC. 0.05% of their portfolio | 70.8k $2.9m | Added +4.9k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 70.7k $2.9m | Added +59.5k |
| UBS Group AG 0.00% of their portfolio | 68.3k $2.8m | Added +14.9k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.00% of their portfolio | 67.4k $2.8m | Reduced -14.0k |
| Jetstream Capital LLC 5.13% of their portfolio | 64.0k $2.6m | Reduced -28.0k |
| AXIOM INVESTORS LLC /DE 0.04% of their portfolio | 62.4k $2.6m | Reduced -11.8k |
| Swiss National Bank 0.00% of their portfolio | 58.6k $2.4m | Added +2.2k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 54.8k $2.3m | Added +45.6k |
| SIMPLEX TRADING, LLC 0.10% of their portfolio | 54.4k $2.2m | Added +51.1k |
| Legato Capital Management LLC 0.29% of their portfolio | 52.1k $2.2m | Added +22.5k |
| HERITAGE INVESTORS MANAGEMENT CORP 0.08% of their portfolio | 51.4k $2.1m | Reduced -750 |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 46.1k $1.9m | Added +40.3k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 45.4k $1.9m | Added +477 |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 44.9k $1.8m | Added +17.9k |
| Dakota Wealth Management 0.08% of their portfolio | 43.6k $1.8m | Added +25.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 41.7k $1.7m | Reduced -441.3k |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.17% of their portfolio | 40.4k $1.7m | New |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 39.7k $1.6m | Reduced -2.6k |
| THOMPSON SIEGEL & WALMSLEY LLC 0.03% of their portfolio | 39.4k $1.6m | Added +2.1k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 37.2k $1.5m | New |
| ROMAN BUTLER FULLERTON & CO 0.79% of their portfolio | 34.6k $1.7m | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 32.3k $1.3m | Added +9.3k |
| Jump Financial, LLC 0.05% of their portfolio | 31.7k $1.3m | New |
| RAYMOND JAMES & ASSOCIATES 0.00% of their portfolio | 30.1k $1.2m | Reduced -3.1k |
| CREDIT SUISSE AG/ 0.00% of their portfolio | 27.5k $1.1m | Added +5.7k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 26.6k $1.1m | New |
| Walleye Trading LLC 0.06% of their portfolio | 26.2k $1.1m | Added +25.0k |
| Legal & General Group Plc 0.00% of their portfolio | 25.7k $1.1m | Added +14.8k |
| DARK FOREST CAPITAL MANAGEMENT LP 0.10% of their portfolio | 24.7k $1.0m | Added +4.4k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 24.3k $1.0m | Added +5.1k |
| GREENWOOD CAPITAL ASSOCIATES LLC 0.14% of their portfolio | 24.0k $990.2k | Added +3.3k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 22.6k $932.7k | Reduced -2.2k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 21.0k $864.8k | Added +19.4k |
| Virtu Financial LLC 0.06% of their portfolio | 19.2k $790.0k | New |
| Raymond James Financial Services Advisors, Inc. 0.00% of their portfolio | 18.7k $769.5k | Added +385 |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 17.5k $723.0k | Added +628 |
| CAXTON ASSOCIATES LP 0.10% of their portfolio | 16.5k $679.4k | New |
| Cetera Advisors LLC 0.01% of their portfolio | 15.9k $656.1k | New |
| Concentrum Wealth Management 0.41% of their portfolio | 15.6k $641.7k | Added +360 |
| Steward Partners Investment Advisory, LLC 0.01% of their portfolio | 15.5k $639.4k | Added +2.3k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 15.4k $635.9k | Reduced -110.3k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 13.7k $563.2k | New |
| Artemis Investment Management LLP 0.01% of their portfolio | 13.6k $558.8k | Reduced -5.9k |
| TOWNSQUARE CAPITAL LLC 0.01% of their portfolio | 13.5k $555.2k | Reduced -401 |
| Inspire Advisors, LLC 0.10% of their portfolio | 13.0k $537.7k | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 12.7k $524.7k | Reduced -11.0k |
| Kestra Advisory Services, LLC 0.01% of their portfolio | 12.6k $519.4k | Reduced -110 |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 12.5k $518.0k | New |
| AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio | 12.5k $513.7k | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 12.3k $506.3k | Added +11.0k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 12.1k $500.1k | Added +11.8k |
| Mirae Asset Global Investments Co., Ltd. 0.00% of their portfolio | 11.9k $491.5k | New |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 11.9k $489.9k | New |
| JANUS HENDERSON GROUP PLC 0.00% of their portfolio | 11.8k $486.8k | Reduced -7 |
| BARCLAYS PLC 0.00% of their portfolio | 11.0k $452.2k | Reduced -12.7k |
| ALPS ADVISORS INC 0.00% of their portfolio | 10.9k $448.2k | Added +85 |
| BIT Capital GmbH 0.05% of their portfolio | 10.5k $431.8k | Added +468 |
| B. Riley Wealth Advisors, Inc. 0.01% of their portfolio | 10.3k $425.2k | Reduced -258 |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 10.2k $421.5k | New |
| CITIGROUP INC 0.00% of their portfolio | 10.1k $416.9k | Added +6.1k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 10.1k $415.1k | New |
| THOMPSON DAVIS & CO., INC. 0.43% of their portfolio | 9.2k $378.5k | Reduced -34.4k |