AEHR TEST SYS (AEHR)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
255
Reporting holders
$3.0B
Reported value
68.1%
Of shares outstanding
28.5%
Held as options
+71
Holder change
Institutions report 22,227,829 shares against 32,620,450 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $255.5M | 2,659,542 | 0.00% | 8q | +16.3%+$35.8M |
| JANE STREET GROUP, LLC | $216.2M | 753,523 | 0.02% | 11q | +172.0%+$136.7M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $193.0M | 16,850 | 0.02% | 20q | -91.7%-$2.1B |
| CITADEL ADVISORS LLC | $170.6M | 400,732 | 0.02% | 21q | +183.6%+$110.5M |
| VANGUARD CAPITAL MANAGEMENT LLC | $126.8M | 1,320,350 | 0.00% | 2q | +3.0%+$3.7M |
| D. E. Shaw & Co., Inc. | $125.0M | 1,177,421 | 0.06% | 14q | +244.6%+$88.7M |
| TWO SIGMA INVESTMENTS, LP | $113.5M | 1,164,614 | 0.08% | 4q | +443.3%+$92.6M |
| IMC-Chicago, LLC | $111.8M | options only | 0.03% | 10q | OPTIONS |
| FMR LLC | $96.7M | 1,006,830 | 0.00% | 19q | -53.0%-$109.1M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $92.9M | 966,659 | 0.00% | 2q | +5.3%+$4.7M |
| GEODE CAPITAL MANAGEMENT, LLC | $84.1M | 875,505 | 0.00% | 31q | +20.6%+$14.4M |
| GROUP ONE TRADING LLC | $82.4M | 17,271 | 0.12% | 20q | +35.4%+$21.5M |
| GOLDMAN SACHS GROUP INC | $77.8M | 810,036 | 0.01% | 18q | -35.8%-$43.4M |
| JPMORGAN CHASE & CO | $69.6M | 732,547 | 0.00% | 15q | +284.9%+$51.5M |
| STATE STREET CORP | $68.5M | 712,926 | 0.00% | 20q | +14.4%+$8.6M |
| Connor, Clark & Lunn Investment Management Ltd. | $64.4M | 670,758 | 0.12% | 2q | +206.5%+$43.4M |
| GRATIA CAPITAL, LLC | $55.3M | options only | 33.43% | 4q | OPTIONS |
| Caption Management, LLC | $47.0M | options only | 0.22% | 2q | OPTIONS |
| MORGAN STANLEY | $46.1M | 480,400 | 0.00% | 35q | +190.0%+$30.2M |
| NEXT CENTURY GROWTH INVESTORS LLC | $39.5M | 410,731 | 2.09% | 4q | -45.6%-$33.0M |
| MARSHALL WACE, LLP | $36.8M | 382,738 | 0.03% | 2q | +3648.3%+$35.8M |
| AWM Investment Company, Inc. | $36.0M | 374,808 | 3.12% | 31q | -76.5%-$117.1M |
| UBS Group AG | $33.5M | 169,123 | 0.00% | 19q | -31.5%-$15.4M |
| Invesco Ltd. | $28.5M | 296,226 | 0.00% | 15q | +3.7%+$1.0M |
| NORTHERN TRUST CORP | $26.6M | 277,020 | 0.00% | 31q | +9.9%+$2.4M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $24.0M | 249,512 | 0.00% | 19q | +5.9%+$1.3M |
| Sixth Street Partners Management Company, L.P. | $24.0M | 249,512 | 0.00% | new | NEW |
| Science & Technology Partners, L.P. | $23.9M | 249,000 | 4.03% | new | NEW |
| WELLINGTON MANAGEMENT GROUP LLP | $22.9M | 238,453 | 0.00% | 10q | +56.0%+$8.2M |
| Driehaus Capital Management LLC | $22.9M | 238,422 | 0.13% | new | NEW |
| Point72 Asset Management, L.P. | $21.1M | options only | 0.02% | 3q | OPTIONS |
| VANGUARD FIDUCIARY TRUST CO | $20.4M | 212,881 | 0.00% | 2q | +8.0%+$1.5M |
| TUDOR INVESTMENT CORP ET AL | $20.1M | 204,550 | 0.03% | 8q | +324.4%+$15.4M |
| BAILLIE GIFFORD & CO | $19.6M | 203,878 | 0.02% | 12q | -79.6%-$76.6M |
| Trexquant Investment LP | $19.4M | 201,892 | 0.11% | new | NEW |
| NEUBERGER BERMAN GROUP LLC | $16.1M | 167,664 | 0.01% | new | NEW |
| BARD ASSOCIATES INC | $15.1M | 156,900 | 3.35% | 5q | -12.4%-$2.1M |
| KADENSA CAPITAL Ltd | $14.9M | 155,299 | 3.18% | new | NEW |
| Penn Capital Management Company, LLC | $14.5M | 150,547 | 0.92% | new | NEW |
| BNP PARIBAS FINANCIAL MARKETS | $14.0M | 145,612 | 0.00% | 16q | +2205.1%+$13.4M |
| BERKSHIRE CAPITAL HOLDINGS INC | $13.7M | 142,640 | 2.96% | new | NEW |
| NEW YORK STATE COMMON RETIREMENT FUND | $13.3M | 138,047 | 0.02% | 20q | +124.2%+$7.3M |
| RENAISSANCE TECHNOLOGIES LLC | $12.9M | 134,500 | 0.02% | new | NEW |
| Walleye Trading LLC | $12.6M | 11,663 | 0.01% | 14q | -2.8%-$360.8K |
| PEAK6 LLC | $11.8M | options only | 0.02% | 2q | OPTIONS |
| BANK OF AMERICA CORP /DE/ | $11.6M | 121,056 | 0.00% | 15q | +113.1%+$6.2M |
| Kultura Capital Management LP | $11.3M | 117,865 | 2.05% | 2q | +47.0%+$3.6M |
| MILLENNIUM MANAGEMENT LLC | $10.5M | 108,877 | 0.00% | 4q | +13.6%+$1.3M |
| Nuveen, LLC | $9.9M | 102,621 | 0.00% | 6q | +45.9%+$3.1M |
| BARCLAYS PLC | $9.7M | 101,249 | 0.00% | 16q | +93.9%+$4.7M |
| GILDER GAGNON HOWE & CO LLC | $9.6M | 100,204 | 0.10% | 4q | -77.4%-$33.1M |
| Bank of New York Mellon Corp | $9.0M | 93,571 | 0.00% | 31q | +4.7%+$400.2K |
| DIMENSIONAL FUND ADVISORS LP | $9.0M | 93,404 | 0.00% | 31q | HELD |
| RICE HALL JAMES & ASSOCIATES, LLC | $8.4M | 87,546 | 0.41% | 10q | -67.8%-$17.7M |
| RAYMOND JAMES FINANCIAL INC | $8.3M | 86,773 | 0.00% | 5q | +15.3%+$1.1M |
| ALGERT GLOBAL LLC | $7.9M | 82,275 | 0.09% | new | NEW |
| OSAIC HOLDINGS, INC. | $7.3M | 75,960 | 0.01% | 24q | -27.7%-$2.8M |
| POLEN CAPITAL MANAGEMENT LLC | $6.4M | 66,157 | 0.05% | 5q | -16.7%-$1.3M |
| FRANKLIN RESOURCES INC | $6.2M | 64,831 | 0.00% | 11q | +389.3%+$5.0M |
| Evergreen Quality Fund GP, Ltd. | $6.0M | 62,380 | 0.10% | new | NEW |
| SIMPLEX TRADING, LLC | $6.0M | options only | 0.00% | 19q | OPTIONS |
| Pier Capital, LLC | $5.8M | 60,394 | 0.77% | 10q | -52.4%-$6.4M |
| Swiss National Bank | $5.8M | 59,900 | 0.00% | 3q | +4.2%+$230.5K |
| ROYAL BANK OF CANADA | $5.4M | 56,027 | 0.00% | 20q | -6.5%-$374.9K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $5.1M | 52,815 | 0.00% | 3q | +53.6%+$1.8M |
| Bouvel Investment Partners, LLC | $4.7M | 48,852 | 1.06% | 11q | -32.0%-$2.2M |
| CAPITAL FUND MANAGEMENT S.A. | $4.3M | 44,892 | 0.02% | new | NEW |
| Harvest Investment Services, LLC | $4.3M | 44,359 | 0.66% | 4q | +91.0%+$2.0M |
| Schonfeld Strategic Advisors LLC | $4.2M | 44,106 | 0.02% | new | NEW |
| Russell Investments Group, Ltd. | $4.0M | 41,611 | 0.00% | 13q | +412.1%+$3.2M |
| DEUTSCHE BANK AG\ | $3.9M | 40,960 | 0.00% | 14q | +53.3%+$1.4M |
| RHUMBLINE ADVISERS | $3.7M | 38,835 | 0.00% | 13q | +5.4%+$192.3K |
| CITIGROUP INC | $3.6M | 37,518 | 0.00% | 16q | +426.3%+$2.9M |
| INTRINSIC EDGE CAPITAL MANAGEMENT LLC | $3.5M | 36,600 | 0.36% | new | NEW |
| Informed Momentum Co LLC | $3.5M | 36,322 | 0.31% | new | NEW |
| Alphadyne Asset Management LP | $3.5M | options only | 0.03% | 2q | OPTIONS |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $3.5M | 35,987 | 0.00% | new | NEW |
| SHARIAPORTFOLIO, INC. | $3.3M | 34,460 | 1.17% | new | NEW |
| WELLS FARGO & COMPANY/MN | $3.3M | 34,170 | 0.00% | 20q | -27.5%-$1.2M |
| LPL Financial LLC | $3.1M | 32,430 | 0.00% | 7q | +191.8%+$2.0M |
| AMERIPRISE FINANCIAL INC | $3.1M | 31,946 | 0.00% | new | NEW |
| Havemeyer Place LP | $3.0M | 31,246 | 0.30% | new | NEW |
| Sand Hill Global Advisors, LLC | $2.5M | 25,700 | 0.07% | new | NEW |
| Quantinno Capital Management LP | $2.3M | 24,017 | 0.00% | 5q | -15.8%-$432.6K |
| Legal & General Group Plc | $2.3M | 23,821 | 0.00% | 15q | -4.0%-$96.0K |
| Capstone Capital Management Ltd | $2.1M | 21,867 | 0.94% | new | NEW |
| Engineers Gate Manager LP | $2.1M | 21,542 | 0.03% | 3q | +5.2%+$102.7K |
| VOYA INVESTMENT MANAGEMENT LLC | $2.1M | 21,484 | 0.00% | new | NEW |
| VANGUARD ASSET MANAGEMENT, Ltd | $2.0M | 20,929 | 0.00% | 2q | +9.1%+$167.4K |
| KP Management LLC | $1.9M | 20,000 | 0.36% | new | NEW |
| Universal- Beteiligungs- und Servicegesellschaft mbH | $1.8M | 19,035 | 0.00% | 3q | -37.8%-$1.1M |
| Vanguard Global Advisers, LLC | $1.7M | 17,841 | 0.00% | 2q | -9.3%-$176.1K |
| BLAIR WILLIAM & CO/IL | $1.7M | 17,838 | 0.00% | new | NEW |
| MetLife Investment Management, LLC | $1.7M | 17,837 | 0.01% | 13q | +7.8%+$123.7K |
| LAUREL OAK WEALTH MANAGEMENT, LLC | $1.7M | 17,670 | 0.25% | 2q | -54.3%-$2.0M |
| STATE OF WISCONSIN INVESTMENT BOARD | $1.7M | 17,618 | 0.00% | 4q | -19.7%-$415.1K |
| Pictet Asset Management Holding SA | $1.6M | 16,654 | 0.00% | 2q | +187.7%+$1.0M |
| Cetera Investment Advisers | $1.6M | 16,652 | 0.00% | 4q | +19.6%+$262.4K |
| Tidal Investments LLC | $1.5M | 15,737 | 0.00% | new | NEW |
| Johnson Financial Group, LLC | $1.5M | 15,255 | 0.08% | 2q | -77.9%-$5.2M |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G/A | AWM Investment Company, Inc. | 1.1% |
| 2026-08-06 | 13G/A | FMR LLCwith 1 co-filers | 3.2% |
| 2026-07-29 | 13G | JANE STREET GROUP, LLCwith 2 co-filers | 5.1% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 255 | $3.0B | 22,227,829 | 99 | 69 | 67 | 28.5% |
| Q1 2026 | 184 | $953.8M | 20,882,569 | 52 | 61 | 41 | 19.2% |
| Q4 2025 | 146 | $544.0M | 21,084,021 | 25 | 55 | 35 | 22.0% |
| Q3 2025 | 143 | $787.7M | 20,097,871 | 40 | 37 | 40 | 23.2% |
| Q2 2025 | 120 | $258.4M | 17,381,948 | 25 | 41 | 27 | 13.1% |
| Q1 2025 | 115 | $158.4M | 19,121,119 | 19 | 34 | 38 | 11.8% |
| Q4 2024 | 129 | $388.4M | 20,593,088 | 24 | 37 | 42 | 11.8% |
| Q3 2024 | 119 | $289.8M | 20,526,649 | 24 | 39 | 33 | 9.0% |
| Q2 2024 | 115 | $235.2M | 18,829,805 | 24 | 43 | 32 | 10.6% |
| Q1 2024 | 127 | $275.9M | 19,011,504 | 27 | 35 | 43 | 13.1% |
| Q4 2023 | 160 | $584.6M | 19,711,937 | 42 | 59 | 35 | 10.8% |
| Q3 2023 | 150 | $942.2M | 18,490,318 | 29 | 58 | 37 | 10.4% |
| Q2 2023 | 146 | $856.1M | 18,348,538 | 32 | 50 | 40 | 11.6% |
| Q1 2023 | 137 | $662.2M | 18,409,914 | 38 | 38 | 41 | 13.8% |
| Q4 2022 | 111 | $356.7M | 14,865,238 | 44 | 25 | 24 | 16.7% |
| Q3 2022 | 85 | $184.7M | 11,814,541 | 31 | 24 | 15 | 9.6% |
| Q2 2022 | 74 | $72.1M | 8,799,809 | 13 | 21 | 24 | 8.4% |
| Q1 2022 | 82 | $122.0M | 10,822,617 | 22 | 31 | 11 | 9.9% |
| Q4 2021 | 78 | $345.6M | 11,654,792 | 40 | 15 | 18 | 18.5% |
| Q3 2021 | 42 | $128.6M | 7,992,191 | 29 | 7 | 5 | 14.7% |
| Q2 2021 | 18 | $12.7M | 4,619,074 | 2 | 3 | 3 | 0.0% |
| Q1 2021 | 20 | $12.2M | 4,851,985 | 3 | 7 | 4 | 0.0% |
| Q4 2020 | 21 | $12.6M | 4,981,122 | 3 | 7 | 4 | 0.0% |
| Q3 2020 | 21 | $7.8M | 5,584,536 | 4 | 4 | 6 | 0.0% |
| Q2 2020 | 19 | $11.8M | 6,060,456 | 1 | 6 | 3 | 0.0% |
| Q1 2020 | 21 | $10.0M | 5,966,584 | 2 | 6 | 5 | 0.0% |
| Q4 2019 | 24 | $11.2M | 5,593,190 | 5 | 2 | 6 | 0.0% |
| Q3 2019 | 22 | $10.2M | 5,701,289 | 3 | 1 | 8 | 0.0% |
| Q2 2019 | 20 | $9.6M | 5,834,992 | 0 | 3 | 4 | 0.0% |
| Q1 2019 | 23 | $9.4M | 6,828,990 | 3 | 3 | 7 | 0.0% |
| Q4 2018 | 24 | $8.5M | 5,994,795 | 1 | 0 | 1 | 0.0% |