ACMR

ACM Research, Inc.

Special Industry Machinery, NEC · SIC 3559CIK 1680062Held by 9 tracked managersEDGAR filings ↗10-K/10-Q ↗

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9 managers · Q2 2026 13F

13F bookWeight

12 West Capital Management

12 West Capital ManagementPosition history →

5.3%

+3,588.5%

$28.6M

$0.53B13F book · 2026-06-30

Southeastern Asset Management

Mason HawkinsPosition history →

0.92%

(82.2%)

$17.7M

$1.92B13F book · 2026-06-30

Fuller & Thaler Asset Management

Fuller & Thaler Asset ManagementPosition history →

0.22%

NEW

$81.1M

$36.70B13F book · 2026-06-30

WCM Investment Management

WCM Investment ManagementPosition history →

0.20%

(50.7%)

$109.1M

$55.16B13F book · 2026-06-30

Soros Fund Management

Soros family officePosition history →

0.05%

NEW

$3.8M

$7.62B13F book · 2026-06-30

Renaissance Technologies

Renaissance TechnologiesPosition history →

0.04%

+87.4%

$29.2M

$72.62B13F book · 2026-06-30

Capital World Investors

Capital World InvestorsPosition history →

0.04%

NEW

$304.3M

$846.43B13F book · 2026-06-30

Dodge & Cox

Dodge & CoxPosition history →

0.01%

(2.9%)

$14.8M

$191.01B13F book · 2026-06-30

Maverick Capital

Lee AinsliePosition history →

0.01%

NEW

$0.7M

$11.08B13F book · 2026-06-30

Weight = position value ÷ the manager's total 13F long-equity value in the same filing — one definition for every row. “1st obs.” marks a position with no earlier stored 13F to compare against — it is not shown as a purchase.