ACM Research Ownership | Who Owns ACM Research?

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ACM Research Ownership Summary

ACM Research is owned by 56.51% institutional investors, 15.04% insiders, and 28.45% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 7.84% of ACMR shares. H30 FSSA China Growth is the top mutual fund, with 3.00% of its assets in ACM Research shares.

ACMR Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	ACM Research	56.51%	15.04%	28.45%
Sector	Technology Stocks	38.43%	12.63%	48.94%
Idea	Semiconductor Stocks List	48.74%	7.10%	44.16%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	4.90M	7.84%	$74.04M
Vanguard group	4.20M	6.72%	$63.44M
Blackrock	4.07M	6.63%	$93.87M
Kerrisdale advisers	1.95M	3.12%	$29.41M
Mitsubishi ufj trust & banking	1.47M	2.35%	$22.17M
State street	1.25M	2.00%	$18.89M
Pertento partners llp	1.19M	1.90%	$17.89M
Geode capital management	1.18M	1.90%	$17.90M
Ubs asset management americas	1.17M	1.88%	$17.74M
Morgan stanley	1.14M	1.86%	$26.28M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Kerrisdale advisers	1.95M	9.94%	$29.41M
Panview asian equity master fund	663.20K	3.86%	$15.29M
Steamboat capital partners	748.92K	3.49%	$11.31M
Pertento partners llp	1.19M	1.51%	$17.89M
Oasis management	373.71K	1.19%	$5.64M
Matthews capital management	262.45K	0.81%	$3.96M
Collaborative management lp	17.00K	0.80%	$392.02K
Hussman strategic advisors	168.00K	0.75%	$2.54M
Connective capital management	14.03K	0.58%	$323.49K
Yiheng capital management	680.60K	0.40%	$10.28M

Top Buyers

Holder	Shares	% Assets	Change
Kerrisdale advisers	1.95M	9.94%	1.65M
Mitsubishi ufj trust & banking	1.47M	0.05%	1.41M
Ubs asset management americas	1.17M	0.00%	1.10M
Ubs group	1.13M	0.00%	1.03M
Blackrock funding, inc. /de	4.90M	0.00%	460.91K

Top Sellers

Holder	Shares	% Assets	Change
Fuller & thaler asset management	-	-	-1.27M
Portolan capital management	-	-	-921.45K
Voloridge investment management	88.47K	0.00%	-651.97K
Sg capital management	-	-	-583.53K
Bank of america corp /de/	228.08K	0.00%	-582.66K

New Positions

Holder	Shares	% Assets	Change	Value
Davidson kempner capital management lp	393.77K	0.14%	393.77K	$5.95M
Norges bank	290.00K	0.00%	290.00K	$4.38M
Pdt partners	108.03K	0.14%	108.03K	$1.63M
Raymond james financial	85.72K	0.00%	85.72K	$1.29M
Teacher retirement system of texas	56.33K	0.00%	56.33K	$851.00K

Sold Out

Holder	Change
Innealta capital	-3.00
Hollencrest capital management	-5.00
Nelson, van denburg & campbell wealth management group	-10.00
Stephens consulting	-15.00
North star investment management	-18.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2025	258	33.68%	35,754,131	0.15%	56	1.73%	149	46.08%	66	17.86%
Dec 31, 2024	191	-3.54%	35,683,262	11.73%	57	2.19%	102	12.09%	54	-15.63%
Sep 30, 2024	197	-9.22%	31,919,660	-4.89%	51	1.75%	92	-23.97%	62	12.73%
Jun 30, 2024	216	0.47%	33,561,633	3.17%	54	1.91%	120	-0.83%	55	1.85%
Mar 31, 2024	215	27.98%	32,530,618	-0.13%	53	1.83%	121	57.14%	54	-5.26%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
H30 FSSA China Growth	1.91M	3.00%	-61.93K
Vanguard Total Stock Mkt Idx Inv	1.57M	2.46%	-
Vanguard US Total Market Shares ETF	1.53M	2.43%	-
Federated Hermes Asia exJpn Eq R EUR Acc	1.38M	2.17%	221.87K
Vanguard Information Technology ETF	1.24M	1.93%	32.00
iShares Russell 2000 ETF	1.21M	1.90%	-19.66K
Panview Asian Equity Master Fund	1.17M	1.87%	504.00K
R51 FSSA China Growth	806.90K	1.29%	-
Vanguard Institutional Extnd Mkt Idx Tr	773.71K	1.21%	2.67K
Invesco Semiconductors ETF	735.39K	1.15%	1.23K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jul 15, 2025	Liu Tracy	-	Sell	$450.00K
Jul 07, 2025	Feng Lisa	See remarks	Sell	$420.00K
Jun 24, 2025	Feng Lisa	See remarks	Sell	$390.00K
May 21, 2025	Wang David H	See Remarks	Sell	$192.32
May 22, 2025	Wang David H	See Remarks	Sell	$1.36M

Insider Transactions Trends

Date	Buy	Sell
2025 Q3	-	2
2025 Q2	-	5
2025 Q1	-	11
2024 Q4	-	23
2024 Q3	-	2

ACMR Ownership FAQ

Who owns the most shares of ACM Research?

ACM Research’s largest shareholders are Blackrock funding, inc. /de (4.9M shares, 7.84%), Vanguard group (4.2M shares, 6.72%), and Blackrock (4.07M shares, 6.63%). Together, they hold 21.20% of ACM Research’s total shares outstanding.

Does Blackrock own ACM Research?

Yes, BlackRock owns 6.63% of ACM Research, totaling 4.07M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 93.87M$. In the last quarter, BlackRock increased its holdings by 109.3K shares, a 2.76% change.

Who is ACM Research’s biggest shareholder by percentage of total assets invested?

Kerrisdale advisers is ACM Research’s biggest shareholder by percentage of total assets invested, with 9.94% of its assets in 1.95M ACM Research shares, valued at 29.41M$.

Who is the top mutual fund holder of ACM Research shares?

H30 FSSA China Growth is the top mutual fund holder of ACM Research shares, with 3.00% of its total shares outstanding invested in 1.91M ACM Research shares.

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