Who owns AEHR TEST SYSTEMS?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of AEHR from SEC Form 13F filings across 262 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 262 institutions disclosed 23.2M shares of AEHR TEST SYSTEMS worth $2.23B — about 75.8% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
262
13F holders
$2.23B
value, 2026 filers
75.8%
of shares outstanding (23.2M sh)
106
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of AEHR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 2.7M | $255.5M | 0.0% | 8.7% | +16.3% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 1.3M | $126.8M | 0.0% | 4.3% | +3.0% |
| 3 | D. E. Shaw & Co., Inc. | 1.2M | $113.1M | 0.1% | 3.8% | +244.6% |
| 4 | TWO SIGMA INVESTMENTS, LP | 1.2M | $111.9M | 0.1% | 3.8% | +443.3% |
| 5 | FMR LLC | 1.0M | $96.7M | 0.0% | 3.3% | -53.0% |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | 966,659 | $92.9M | 0.0% | 3.2% | +5.3% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 875,505 | $84.1M | 0.0% | 2.9% | +20.6% |
| 8 | GOLDMAN SACHS GROUP INC | 810,036 | $77.8M | 0.0% | 2.6% | -35.8% |
| 9 | JANE STREET GROUP, LLC | 753,523 | $72.4M | 0.0% | 2.5% | +172.0% |
| 10 | JPMORGAN CHASE & CO | 732,547 | $69.6M | 0.0% | 2.4% | +284.9% |
| 11 | STATE STREET CORP | 712,926 | $68.5M | 0.0% | 2.3% | +14.4% |
| 12 | Connor, Clark & Lunn Investment Management Ltd. | 670,758 | $64.4M | 0.1% | 2.2% | +206.5% |
| 13 | PRICE T ROWE ASSOCIATES INC /MD/ | 507,035 | $48.7M | 0.0% | 1.7% | -62.4% |
| 14 | MORGAN STANLEY | 480,400 | $46.1M | 0.0% | 1.6% | +190.0% |
| 15 | NEXT CENTURY GROWTH INVESTORS LLC | 410,731 | $39.5M | 2.1% | 1.3% | -45.6% |
| 16 | CITADEL ADVISORS LLC | 400,732 | $38.5M | 0.0% | 1.3% | +183.6% |
| 17 | MARSHALL WACE, LLP | 382,738 | $36.8M | 0.0% | 1.2% | +3648.3% |
| 18 | AWM Investment Company, Inc. | 374,808 | $36.0M | 3.1% | 1.2% | -76.5% |
| 19 | T. Rowe Price Investment Management, Inc.NEW | 318,127 | $30.6M | 0.0% | 1% | new |
| 20 | Invesco Ltd. | 296,226 | $28.5M | 0.0% | 1% | +3.7% |
| 21 | NORTHERN TRUST CORP | 277,020 | $26.6M | 0.0% | 0.9% | +9.9% |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 249,512 | $24.0M | 0.0% | 0.8% | +5.9% |
| 23 | Science & Technology Partners, L.P.NEW | 249,000 | $23.9M | 4.0% | 0.8% | new |
| 24 | LORD, ABBETT & CO. LLC | 247,640 | $23.8M | 0.1% | 0.8% | +38.1% |
| 25 | WELLINGTON MANAGEMENT GROUP LLP | 238,453 | $22.9M | 0.0% | 0.8% | +56.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.