ACM Research (ACMR) Institutional Ownership

$87.98 -0.66 (-0.74%)

As of 09:57 AM Eastern

Current Institutional Ownership Percentage: 66.75%
Number of Institutional Buyers (last 12 months): 189
Total Institutional Inflows (last 12 months): $704.29M

Number of Institutional Sellers (last 12 months): 101
Total Institutional Outflows (last 12 months): $339.06M

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ACMR Institutional Buying and Selling by Quarter

ACM Research Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
5/22/2026	Segall Bryant & Hamill LLC	87,964	$3.46M	0.0%	-17.4%	0.144%
5/19/2026	Bank of America Corp DE	402,412	$15.84M	0.0%	+33.4%	0.657%
5/19/2026	Janus Henderson Group PLC	1,085,634	$42.70M	0.0%	+0.2%	1.773%
5/19/2026	Cim LLC	14,749	$580K	0.1%	-8.9%	0.024%
5/18/2026	California State Teachers Retirement System	63,131	$2.48M	0.0%	+32.4%	0.103%
5/18/2026	Royal Bank of Canada	4,118	$162K	0.0%	+26.0%	0.007%
5/16/2026	The Manufacturers Life Insurance Company	24,785	$975K	0.0%	-0.7%	0.040%
5/16/2026	Quantinno Capital Management LP	53,925	$2.12M	0.0%	-2.5%	0.088%
5/16/2026	Lazard Asset Management LLC	43,034	$1.69M	0.0%	N/A	0.070%
5/15/2026	Cypress Capital Group	15,820	$623K	0.1%	N/A	0.026%
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5/14/2026	Healthcare of Ontario Pension Plan Trust Fund	57,148	$2.25M	0.0%	N/A	0.093%
5/14/2026	Renaissance Technologies LLC	122,600	$4.82M	0.0%	-1.5%	0.200%
5/14/2026	Public Employees Retirement System of Ohio	26,055	$1.03M	0.0%	N/A	0.043%
5/14/2026	Inceptionr LLC	6,203	$244K	0.1%	N/A	0.010%
5/14/2026	Sei Investments Co.	85,005	$3.35M	0.0%	+45.4%	0.139%
5/13/2026	Cetera Investment Advisers	8,796	$346K	0.0%	+22.6%	0.014%
5/13/2026	First Trust Advisors LP	373,987	$14.72M	0.0%	+73.7%	0.611%
5/8/2026	Summit Global Investments	8,592	$338K	0.0%	N/A	0.014%
5/7/2026	WCM Investment Management LLC	1,860,874	$70.58M	0.2%	+16,878.8%	3.040%
5/7/2026	Dimensional Fund Advisors LP	719,023	$28.29M	0.0%	+207.6%	1.174%
5/7/2026	KBC Group NV	1,698	$67K	0.0%	-25.4%	0.003%
5/7/2026	Swiss National Bank	106,600	$4.20M	0.0%	+1.5%	0.174%
5/6/2026	Bessemer Group Inc.	55,933	$2.20M	0.0%	-33.2%	0.091%
5/6/2026	Allspring Global Investments Holdings LLC	14,815	$599K	0.0%	-39.3%	0.024%
5/5/2026	Bank of New York Mellon Corp	314,609	$12.38M	0.0%	-3.2%	0.514%
5/5/2026	Illinois Municipal Retirement Fund	31,532	$1.24M	0.0%	+30.5%	0.052%
5/5/2026	Harel Insurance Investments & Financial Services Ltd.	2,040	$80K	0.0%	N/A	0.003%
5/4/2026	Empirical Financial Services LLC d.b.a. Empirical Wealth Management	23,427	$922K	0.0%	-10.3%	0.038%
5/4/2026	Illumine Investment Management LLC	21,916	$862K	0.7%	-21.8%	0.036%
5/4/2026	Principal Financial Group Inc.	340,724	$13.41M	0.0%	-11.1%	0.557%
5/4/2026	First Growth Capital LLC	5,598	$226K	0.2%	+5.4%	0.009%
5/4/2026	Chicago Partners Investment Group LLC	4,576	$180K	0.0%	-7.9%	0.007%
5/4/2026	Matthews International Capital Management LLC	138,815	$5.46M	2.2%	-25.9%	0.227%
5/1/2026	Fifth Third Bancorp	11,414	$449K	0.0%	+11,546.9%	0.019%
4/27/2026	New York State Teachers Retirement System	33,740	$1.33M	0.0%	-2.9%	0.056%
4/27/2026	Capelight Capital Asset Management LP	30,000	$1.18M	0.8%	-40.0%	0.049%
4/27/2026	Y Intercept Hong Kong Ltd	76,212	$3.00M	0.1%	N/A	0.126%
4/25/2026	Strs Ohio	15,500	$610K	0.0%	+131.3%	0.026%
4/24/2026	Palouse Capital Management Inc.	3,218	$127K	0.1%	-13.4%	0.005%
4/23/2026	Inspire Investing LLC	62,712	$2.47M	0.2%	+16.3%	0.103%
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4/22/2026	Sterling Capital Management LLC	1,703	$67K	0.0%	-41.8%	0.003%
4/21/2026	Louisiana State Employees Retirement System	23,600	$929K	0.0%	N/A	0.039%
4/20/2026	Blue Trust Inc.	5,150	$203K	0.0%	-10.2%	0.008%
4/16/2026	SG Americas Securities LLC	21,351	$840K	0.0%	-90.7%	0.035%
3/13/2026	Fund Advisors of America Inc FL	8,604	$339K	0.3%	N/A	0.014%
3/10/2026	MY.Alpha Management HK Advisors Ltd	105,605	$4.17M	2.2%	-70.7%	0.174%
3/4/2026	OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC	35,958	$1.42M	0.2%	-54.7%	0.060%
2/19/2026	Invesco Ltd.	1,342,136	$52.95M	0.0%	+444.5%	2.242%
2/18/2026	Cederberg Capital Ltd	693,900	$27.37M	8.8%	+39.8%	1.159%
2/18/2026	Vident Advisory LLC	9,712	$383K	0.0%	N/A	0.016%
2/18/2026	State of Tennessee Department of Treasury	15,757	$622K	0.0%	N/A	0.026%
2/18/2026	Mackenzie Financial Corp	56,681	$2.27M	0.0%	+4.3%	0.095%
2/18/2026	Cim LLC	16,184	$638K	0.1%	-5.5%	0.027%
2/18/2026	Yiheng Capital Management L.P.	174,447	$6.88M	1.4%	-37.7%	0.291%
2/18/2026	VARCOV Co.	7,758	$306K	0.1%	N/A	0.013%
2/18/2026	Odyssean LLC	15,137	$597K	0.4%	N/A	0.025%
2/18/2026	Millennium Management LLC	23,500	$927K	0.0%	-88.8%	0.039%
2/18/2026	Man Group plc	5,307	$209K	0.0%	N/A	0.009%
2/18/2026	Inspire Investing LLC	53,932	$2.13M	0.2%	+82.8%	0.090%
2/18/2026	Janus Henderson Group PLC	1,082,982	$42.74M	0.0%	+1,406.4%	1.809%
2/18/2026	Boothbay Fund Management LLC	119,094	$4.70M	0.1%	-39.0%	0.199%
2/17/2026	Freestone Grove Partners LP	10,153	$401K	0.0%	N/A	0.017%
2/17/2026	Guggenheim Capital LLC	54,571	$2.15M	0.0%	+318.9%	0.091%
2/17/2026	Seldon Capital LP	10,000	$394K	0.1%	-94.8%	0.017%
2/17/2026	PDT Partners LLC	6,241	$246K	0.0%	-37.2%	0.010%
2/17/2026	AQR Capital Management LLC	343,603	$13.56M	0.0%	-3.7%	0.574%
2/17/2026	Cetera Investment Advisers	7,175	$283K	0.0%	-11.3%	0.012%
2/17/2026	Amundi	9,833	$388K	0.0%	N/A	0.016%
2/17/2026	Nearwater Capital Markets Ltd	350,800	$13.84M	0.2%	N/A	0.586%
2/17/2026	Price T Rowe Associates Inc. MD	47,349	$1.87M	0.0%	+4.4%	0.079%
2/17/2026	Broad Bay Capital Management LP	652,214	$25.73M	2.7%	-35.6%	1.090%
2/17/2026	Steamboat Capital Partners LLC	504,161	$19.89M	5.5%	-4.0%	0.842%
2/17/2026	Weiss Asset Management LP	49,170	$1.94M	0.0%	N/A	0.082%
2/17/2026	Watershed Asset Management L.L.C.	10,845	$428K	0.4%	N/A	0.018%
2/17/2026	Kerrisdale Advisers LLC	263,482	$10.39M	4.9%	+49.2%	0.440%
2/17/2026	Russell Investments Group Ltd.	164,308	$6.48M	0.0%	+47.9%	0.275%
2/17/2026	Maryland State Retirement & Pension System	7,764	$306K	0.0%	+2.2%	0.013%
2/17/2026	State of Wisconsin Investment Board	12,157	$480K	0.0%	-56.0%	0.020%
2/17/2026	Royal Bank of Canada	3,269	$128K	0.0%	-92.9%	0.005%
2/17/2026	Triata Capital Ltd	1,929,919	$76.14M	9.2%	-3.7%	3.225%
2/16/2026	OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC	35,958	$1.42M	0.2%	-54.7%	0.060%
2/16/2026	Verition Fund Management LLC	66,652	$2.63M	0.0%	+283.1%	0.111%
2/16/2026	MML Investors Services LLC	22,851	$901K	0.0%	+1.0%	0.038%
2/16/2026	Focus Partners Wealth	42,398	$1.67M	0.0%	N/A	0.071%
2/16/2026	Kennedy Capital Management LLC	139,885	$5.52M	0.1%	N/A	0.234%
2/16/2026	Landscape Capital Management L.L.C.	9,191	$363K	0.0%	N/A	0.015%
2/16/2026	Arax Advisory Partners	1,006	$40K	0.0%	-90.2%	0.002%
2/16/2026	Barclays PLC	106,904	$4.22M	0.0%	+10.6%	0.179%
2/13/2026	The Manufacturers Life Insurance Company	24,956	$985K	0.0%	-7.2%	0.042%
2/13/2026	Inspire Advisors LLC	71,067	$2.80M	0.3%	N/A	0.119%
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2/13/2026	Segall Bryant & Hamill LLC	106,555	$4.20M	0.1%	-1.3%	0.178%
2/13/2026	Advisory Research Inc.	27,324	$1.08M	0.1%	+5.4%	0.046%
2/13/2026	Virtus Advisers LLC	4,694	$185K	0.1%	-83.8%	0.008%
2/13/2026	Dodge & Cox	112,392	$4.43M	0.0%	-8.5%	0.188%
2/13/2026	Morgan Stanley	1,392,306	$54.93M	0.0%	+58.8%	2.326%
2/13/2026	Public Sector Pension Investment Board	184,345	$7.27M	0.0%	-10.1%	0.308%
2/13/2026	First Trust Advisors LP	215,323	$8.49M	0.0%	+182.4%	0.360%
2/13/2026	FirstWave Capital Management LLC	29,491	$1.16M	0.7%	N/A	0.049%
2/13/2026	Charles Schwab Investment Management Inc.	478,333	$18.87M	0.0%	+9.4%	0.799%
2/13/2026	State Street Corp	1,958,041	$77.25M	0.0%	-1.6%	3.272%

ACMR Institutional Ownership - Frequently Asked Questions

During the previous two years, 303 institutional investors and hedge funds held shares of ACM Research. The most heavily invested institutionals were Vanguard Group Inc. ($196.15M), LSV Asset Management ($93.91M), State Street Corp ($77.25M), Triata Capital Ltd ($76.14M), WCM Investment Management LLC ($70.58M), Morgan Stanley ($54.93M), and Geode Capital Management LLC ($52.99M).Learn more on ACM Research's institutional investors.

66.75% of ACM Research's stock is owned by institutional investors. Learn more on ACMR's institutional investor holdings.

Of the 259 institutional investors that purchased ACM Research's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: LSV Asset Management ($2.50M), Mitsubishi UFJ Trust & Banking Corp ($2.06M), WCM Investment Management LLC ($1.85M), Triata Capital Ltd ($1.78M), Kerrisdale Advisers LLC ($1.74M), Federated Hermes Inc. ($1.42M), and Panview Capital Ltd ($1.37M).

Institutional investors have bought a total of 19,257,145 shares in the last 24 months. This purchase volume represents approximately $704.29M in transactions.

Of the 101 institutional investors that sold ACM Research's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Mitsubishi UFJ Trust & Banking Corp ($1.47M), Federated Hermes Inc. ($1.40M), Invesco Ltd. ($1.09M), Millennium Management LLC ($486.55K), UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC ($469.07K), Broad Bay Capital Management LP ($360.20K), and Goldman Sachs Group Inc. ($311.65K).

Institutional investors have sold a total of 9,031,299 shares in the last 24 months. This volume of shares sold represents approximately $339.06M in transactions.

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This page (NASDAQ:ACMR) was last updated on 5/28/2026 by MarketBeat.com Staff.

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ACM Research (ACMR) Institutional Ownership

ACMR Institutional Buying and Selling by Quarter

ACM Research Major Shareholders & Ownership History

ACMR Institutional Ownership - Frequently Asked Questions

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ACM Research (ACMR) Institutional Ownership

Institutional Ownership Changes (13F Filings) for ACM Research (NASDAQ:ACMR)

ACMR Institutional Buying and Selling by Quarter

ACM Research Major Shareholders & Ownership History

ACMR Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of ACMR shares?

What percentage of ACM Research's stock is owned by institutional investors?

Which institutional investors have been buying ACM Research's stock?

How much institutional buying is happening at ACM Research?

Which of ACM Research's major shareholders have been selling company stock?

How much institutional selling is happening at ACM Research?

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