ACM Research, Inc.

ACMR

Exchange: Nasdaq
Industry: Special Industry Machinery, NEC
SEC CIK: 0001680062

SEC filings (opens in a new tab)

In the last 90 days, ACM Research, Inc. insiders filed 0 open-market purchases and 3 sales; 377 institutions reported holding it in 13F filings for Q2 2026, worth $6.11B in total; 3 superinvestors hold it, including Southeastern Asset Management (Longleaf) and Soros Fund Management.

Q4 2025 vs. Q3 2025

How the institutions holding ACM Research, Inc. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025 All holders in Q3 2025

13F holders of ACMR: Q3 2025 compared with Q4 2025
Measure	Q3 2025	Of which not filed for Q4 2025	Q4 2025	Change
Holders	260	6	279	+25
Shares	41.8M	75.1K	45.2M	+3.55M (+8.5%)
Value	$1.63B	$2.92M	$1.79B	+$154.5M (+9.5%)

6 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (68)

Institutions that held ACM Research, Inc. at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to ACMR in Q4 2025
Institution	Shares	Value	% of portfolio
Tekne Capital Management, LLC	715,000	$28.2M	10.07%
Penn Capital Management Co Inc	435,843	$17.2M	1.37%
Nearwater Capital Markets, Ltd	350,800	$13.8M	0.24%
Dimensional Fund Advisors LP	233,741	$9.22M	0.00%
Qube Research & Technologies Ltd	146,059	$5.76M	0.01%
Kennedy Capital Management, Inc.	139,885	$5.52M	0.12%
Centiva Capital, LP	81,967	$3.23M	0.20%
Inspire Advisors, LLC	71,067	$2.80M	0.26%
Yong Rong (HK) Asset Management Ltd	60,000	$2.37M	0.72%
Quantinno Capital Management LP	55,306	$2.18M	0.00%
Massar Capital Management, LP	54,135	$2.14M	0.42%
Capelight Capital Asset Management LP	50,000	$1.97M	1.95%
Weiss Asset Management LP	49,170	$1.94M	0.03%
Colony Group, LLC	42,398	$1.67M	0.00%
FirstWave Capital Management LLC	29,491	$1.16M	0.69%
Nomura Asset Management International Inc.	29,400	$1.16M	0.00%
Oakum Bay Capital LLC	28,798	$1.14M	0.59%
Norges Bank	28,528	$1.13M	0.00%
Jefferies Financial Group Inc.	26,727	$1.05M	0.01%
Louisiana State Employees Retirement System	24,400	$962.6K	0.02%
Illinois Municipal Retirement Fund	24,155	$952.9K	0.01%
State of Tennessee, Treasury Department	15,757	$915.8K	0.00%
Fideuram Asset Management (Ireland) dac	30,975	$864.4K	0.07%
Nkcfo LLC	18,000	$710.0K	0.21%
Handelsbanken Fonder AB	15,900	$627.0K	0.00%
Odyssean, LLC	15,137	$597.2K	0.43%
WCM Investment Management, LLC	10,960	$440.6K	0.00%
Watershed Asset Management, L.L.C.	10,845	$427.8K	0.40%
Freestone Grove Partners LP	10,153	$400.5K	0.00%
Prudential PLC	10,113	$399.0K	0.00%
CAPROCK Group, Inc.	10,050	$396.5K	0.01%
Amundi	9,833	$387.9K	0.00%
Vident Advisory, LLC	9,712	$383.1K	0.00%
First Growth Capital LLC	5,313	$375.5K	0.33%
Landscape Capital Management, L.L.C.	9,191	$362.6K	0.02%
Fund Advisors of America Inc	8,604	$339.4K	0.31%
Leuthold Group, LLC	8,362	$329.9K	0.04%
VARCOV Co.	7,758	$306.1K	0.12%
OP Asset Management Ltd	7,390	$291.5K	0.00%
TCG Advisory Services, LLC	6,439	$254.0K	0.01%
IFG Advisory, LLC	6,250	$246.6K	0.01%
Walleye Capital LLC	6,225	$245.6K	0.00%
Man Group plc	5,307	$209.4K	0.00%
Contravisory Investment Management, Inc.	5,101	$201.2K	0.04%
Penserra Capital Management LLC	2,748	$108.0K	0.00%
Erste Asset Management GmbH	2,250	$88.8K	0.00%
University of Texas/Texas Am Investment Managment Co	449	$17.7K	0.00%
Torren Management, LLC	424	$16.7K	0.01%
Estate Planners Group, LLC	421	$16.6K	0.01%
Pinnacle Wealth Planning Services, Inc.	403	$15.9K	0.00%
Commonwealth Retirement Investments LLC	250	$9.86K	0.00%
Mark Sheptoff Financial Planning, LLC	200	$7.89K	0.00%
Los Angeles Capital Management LLC	161	$6.64K	0.00%
Umb Bank N A	138	$5.44K	0.00%
Quadrant Capital Group LLC	130	$5.13K	0.00%
Sunbelt Securities, Inc.	120	$4.73K	0.00%
Fifth Third Bancorp	98	$3.87K	0.00%
Cornerstone Financial Management LLC	69	$2.72K	0.00%
SageView Advisory Group, LLC	25	$987	0.00%
Farmers & Merchants Investments Inc	25	$986	0.00%
Westside Investment Management, Inc.	13	$513	0.00%
Keating Financial Advisory Services, Inc.	10	$395	0.00%
Ankerstar Wealth, LLC	5	$197	0.00%
Stone House Investment Management, LLC	4	$158	0.00%
Abound Wealth Management	4	$158	0.00%
Rachor Investment Advisory Services, LLC	4	$158	0.00%
Meramec Financial Planners, LLC	2	$125	0.00%
Gilpin Wealth Management, LLC	3	$119	0.00%

Sold out (43)

Institutions that held ACM Research, Inc. at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of ACMR in Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Two Sigma Investments, LP	194,338	$7.60M
Jane Street Group, LLC	175,317	$6.86M
Marshall Wace, LLP	113,530	$4.44M
Tudor Investment Corp Et Al	74,474	$2.91M
Campbell & CO Investment Adviser LLC	51,822	$2.03M
ExodusPoint Capital Management, LP	47,411	$1.86M
Ieq Capital, LLC	35,805	$1.40M
Two Sigma Advisers, LP	35,400	$1.39M
Franklin Resources Inc	33,245	$1.30M
Dark Forest Capital Management LP	24,096	$942.9K
Picton Mahoney Asset Management	20,542	$804.0K
RBF Capital, LLC	20,000	$782.6K
Macquarie Group Ltd	18,100	$708.0K
Cynosure Management, LLC	15,797	$618.1K
Danske Bank A/S	14,249	$557.6K
Eschler Asset Management LLP	13,904	$544.1K
Private Advisor Group, LLC	13,543	$529.9K
Gsa Capital Partners LLP	11,423	$447.0K
Martingale Asset Management L P	11,242	$439.9K
Marex Group plc	10,869	$425.3K
Cornerstone Investment Partners, LLC	10,170	$398.0K
Entropy Technologies, LP	9,880	$386.6K
XTX Topco Ltd	9,116	$356.7K
Apollon Wealth Management, LLC	9,025	$353.1K
DRW Securities, LLC	8,946	$350.6K
Savvy Advisors, Inc.	7,943	$310.8K
Perigon Wealth Management, LLC	7,402	$289.6K
Mariner, LLC	7,167	$280.4K
Caxton Associates LLP	6,738	$263.7K
Numerai GP LLC	6,114	$239.2K
Zacks Investment Management	5,756	$225.2K
Commonwealth Equity Services, LLC	5,575	$218.0K
Aquatic Capital Management LLC	5,539	$216.7K
Quantbot Technologies LP	280	$11.0K
Optiver Holding B.V.	170	$6.65K
Wealthspire Advisors, LLC	100	$3.91K
Rise Advisors, LLC	52	$2.04K
Salem Investment Counselors Inc	50	$1.96K
Advisory Services Network, LLC	41	$1.60K
Principal Securities, Inc.	41	$1.60K
Turning Point Benefit Group, Inc.	9	$394
Clearstead Advisors, LLC	1	$40
FNY Investment Advisers, LLC	14	$0

Not filed for Q4 2025 yet (6)

Institutions that held ACM Research, Inc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ACMR in Q3 2025 that haven't filed for Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Wolverine Trading, LLC	29,275	$1.13M
FCG Investment Co	27,700	$1.08M
AXA Investment Managers S.A.	12,576	$492.1K
CIBC Bancorp USA Inc.	5,388	$210.8K
Binnacle Investments Inc	122	$4.77K
Guerra Advisors Inc	34	$1.33K