Who owns ACM Research, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of ACMR from SEC Form 13F filings across 377 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, 377 institutions disclosed 48.5M shares of ACM Research, Inc. worth $6.11B — about 71.4% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
377
13F holders
$6.11B
value, 2026 filers
71.4%
of shares outstanding (48.5M sh)
122
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 ACMR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 8.7M | $1.10B | 0.0% | 12.8% | +8.5% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 3.3M | $425.0M | 0.0% | 4.9% | +52.0% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 2.5M | $312.5M | 0.0% | 3.6% | +8.8% |
| 4 | Capital World InvestorsNEW | 2.4M | $304.3M | 0.0% | 3.5% | new |
| 5 | STATE STREET CORP | 2.2M | $277.7M | 0.0% | 3.2% | +9.1% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 1.5M | $188.8M | 0.0% | 2.2% | +8.5% |
| 7 | Invesco Ltd. | 1.2M | $148.5M | 0.0% | 1.7% | +48.7% |
| 8 | Value Aligned Research Advisors, LLC | 1.1M | $133.7M | 0.3% | 1.6% | +10.3% |
| 9 | WFM ASIA (BVI) LtdNEW | 969,200 | $123.0M | 18.6% | 1.4% | new |
| 10 | DIMENSIONAL FUND ADVISORS LP | 954,474 | $121.1M | 0.0% | 1.4% | +32.7% |
| 11 | WCM INVESTMENT MANAGEMENT, LLC | 917,651 | $109.1M | 0.2% | 1.4% | -50.7% |
| 12 | Polunin Capital Partners Ltd | 748,498 | $77.1M | 18.9% | 1.1% | -1.9% |
| 13 | Tekne Capital Management, LLC | 737,500 | $93.6M | 30.6% | 1.1% | +3.1% |
| 14 | MORGAN STANLEY | 700,185 | $88.8M | 0.0% | 1% | -41.3% |
| 15 | FMR LLC | 672,184 | $85.3M | 0.0% | 1% | +6.8% |
| 16 | FULLER & THALER ASSET MANAGEMENT, INC.NEW | 639,448 | $81.1M | 0.2% | 0.9% | new |
| 17 | GILDER GAGNON HOWE & CO LLC | 637,058 | $80.8M | 0.8% | 0.9% | +794.2% |
| 18 | CITADEL ADVISORS LLC | 636,836 | $80.8M | 0.0% | 0.9% | +213.1% |
| 19 | Capital International InvestorsNEW | 623,429 | $79.1M | 0.0% | 0.9% | new |
| 20 | PRICE T ROWE ASSOCIATES INC /MD/ | 591,573 | $75.1M | 0.0% | 0.9% | +172.7% |
| 21 | NORTHERN TRUST CORP | 569,126 | $72.2M | 0.0% | 0.8% | +1.2% |
| 22 | Jupiter Topco LLCNEW | 553,768 | $70.2M | 0.0% | 0.8% | new |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 526,760 | $66.8M | 0.0% | 0.8% | +9.5% |
| 24 | BANK OF AMERICA CORP /DE/ | 479,706 | $60.9M | 0.0% | 0.7% | +19.2% |
| 25 | Tidal Investments LLC | 470,937 | $59.8M | 0.1% | 0.7% | +50.1% |
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.