Canonical: https://ownershiptrace.com/13f/companies/2431

# Who owns ACM Research, Inc. (ACMR)? Elite investor 13F holders

8 tracked elite investors reported holding ACM Research, Inc as of 2026-06-30, including Oasis Management, Southeastern Asset Management, Renaissance Technologies LLC, Dodge & Cox Funds, D.E. Shaw. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.

8 tracked investors currently reported holding · Latest report period: 2026-06-30 · Industrials · Capital Goods

ACM Research, Inc., together with its subsidiaries, develops, manufactures, and sells capital equipment in Mainland China and internationally. It also develops, manufactures, and sells a range of packaging tools to wafer assembly and packaging customers. The company provides wet cleaning equipment for front end production processes; electrochemical plating, furnace, PECVD, and track platforms;…

## Reported holders and securities, including exits (up to 20)

| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|  --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [Oasis Management](https://ownershiptrace.com/13f/investors/141) | ACM Research, Inc. | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 34834477.00 USD | 274525.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1317904/0001317904-26-000005-index.html) |
| [Southeastern Asset Management](https://ownershiptrace.com/13f/investors/55) | ACM Research, Inc. | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 17698363.00 USD | 139478.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/807985/0001398344-26-014641-index.html) |
| [Renaissance Technologies LLC](https://ownershiptrace.com/13f/investors/63) | ACM Research, Inc. | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 29159322.00 USD | 229800.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1037389/0001037389-26-000059-index.html) |
| [Dodge & Cox Funds](https://ownershiptrace.com/13f/investors/29) | ACM Research, Inc. | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 14768981.00 USD | 116392.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/200217/0001193125-26-349535-index.html) |
| [D.E. Shaw](https://ownershiptrace.com/13f/investors/98) | ACM Research, Inc. | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 4250815.00 USD | 33500.000000 | Shares | buy | [Original filing](https://www.sec.gov/Archives/edgar/data/1009207/0001104659-26-097217-index.html) |
| [Maverick Capital](https://ownershiptrace.com/13f/investors/50) | ACM Research, Inc. | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 674420.00 USD | 5315.000000 | Shares | buy | [Original filing](https://www.sec.gov/Archives/edgar/data/934639/0000947871-26-000793-index.html) |
| [GMO](https://ownershiptrace.com/13f/investors/94674) | ACM Research, Inc. | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 471143.00 USD | 3713.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/1352662/0001072613-26-000636-index.html) |
| [Gotham Asset Management](https://ownershiptrace.com/13f/investors/94672) | ACM Research, Inc. | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 382827.00 USD | 3017.000000 | Shares | buy | [Original filing](https://www.sec.gov/Archives/edgar/data/1510387/0001398344-26-014644-index.html) |

Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.

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