ACM Research, Inc. (ACMR) Institutional Ownership & Insider Trading

373 institutions reported holding ACM Research, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 72 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-06-30 · read by EquiReason

ACMRACM Research, Inc.Follow ACMR — free

Semiconductor Equipment & Materials · Technology

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Market cap: 3.5B
P/E TTM: 24.1
Dividend yield: —
52-week: —
Next earnings: 5 Nov, in 12 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

373 institutions held 69.6% of the shares. Across filers that reported both quarters, shares held changed +10.9%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	373	48	+10.9%	118	108	85	33
Mar 26	297	44	-2.4%	72	59	95	37
Dec 25	272	45	+8.4%	87	46	79	39
Sep 25	251	42	+12.2%	76	52	69	37
Jun 25	238	37	+4.6%	81	48	66	48
Mar 25	235	36	+1.0%	67	72	59	20
Dec 24	177	36	+4.0%	56	22	52	34
Sep 24	181	32	-8.6%	58	28	55	40

ACM Research, Inc. — questions

Who owns ACM Research, Inc. stock?: 373 institutions reported ACM Research, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (12.4%), VANGUARD PORTFOLIO MANAGEMENT LLC (4.8%), VANGUARD CAPITAL MANAGEMENT LLC (3.5%).
Are ACM Research, Inc. insiders buying or selling?: 72 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from ACM Research, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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