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ACM Research Ownership | Who Owns ACM Research?

OverviewForecastRevenueFinancialsChartTranscripts

ACM Research Ownership Summary

ACM Research is owned by 20.63% institutional investors, 15.00% insiders, and 64.37% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 11.86% of ACMR shares. H30 FSSA China Growth is the top mutual fund, with 2.60% of its assets in ACM Research shares.

ACMR Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockACM Research20.63%15.00%64.37%
SectorTechnology Stocks 50.69%12.56%36.75%
IdeaSemiconductor Stocks List 114.42%7.19%-21.61%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de7.59M11.86%$296.90M
Vanguard group4.85M7.58%$189.64M
Blackrock4.07M6.63%$93.87M
Lsv asset management2.50M3.91%$97.99M
Triata capital2.00M3.13%$78.39B
State street1.99M3.11%$77.88M
Southeastern asset management inc/tn/1.49M2.32%$58.13M
Mitsubishi ufj trust & banking1.36M2.13%$53.22B
Geode capital management1.32M2.07%$51.80M
Federated hermes1.06M1.66%$41.53M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Triata capital2.00M9.15%$78.39B
My.alpha management hk advisors360.24K9.13%$14.10M
Cederberg capital496.50K5.55%$19.43M
Steamboat capital partners525.00K5.35%$20.54M
Broad bay capital management, lp1.01M4.90%$39.62M
Panview asian equity master fund663.20K3.86%$15.29M
Kerrisdale advisers176.58K3.58%$6.91M
Southeastern asset management inc/tn/1.49M2.97%$58.13M
Seldon capital lp193.24K2.66%$7.56M
Matthews capital management203.51K1.85%$7.96M

Top Buyers

HolderShares% AssetsChange
Blackrock funding, inc. /de7.59M0.01%3.48M
Lsv asset management2.50M0.22%2.06M
State street1.99M0.00%735.55K
Vanguard group4.85M0.00%549.97K
Cederberg capital496.50K5.55%496.50K

Top Sellers

HolderShares% AssetsChange
Fuller & thaler asset management---1.27M
Pertento partners llp---1.02M
Mitsubishi ufj trust & banking1.36M0.12%-942.38K
Point72 hong kong---761.16K
Sg capital management---583.53K

New Positions

HolderShares% AssetsChangeValue
Cederberg capital496.50K5.55%496.50K$19.43M
Portolan capital management405.86K0.86%405.86K$15.88M
My.alpha management hk advisors360.24K9.13%360.24K$14.10M
Norges bank290.00K0.00%290.00K$4.38M
Public sector pension investment board205.12K0.03%205.12K$8.03M

Sold Out

HolderChange
Assetmark-1.00
Innealta capital-3.00
Hollencrest capital management-5.00
Us bancorp \de\-7.00
Nelson, van denburg & campbell wealth management group-10.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 2025104-60.31%13,195,748-64.68%200.60%56-59.71%28-58.21%
Jun 30, 2025261-0.38%37,343,1784.28%581.82%139-9.15%66-
Mar 31, 202525833.68%35,754,1310.15%561.73%14946.08%6617.86%
Dec 31, 2024191-3.54%35,683,26211.73%572.19%10212.09%54-15.63%
Sep 30, 2024197-9.22%31,919,660-4.89%511.75%92-23.97%6212.73%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
H30 FSSA China Growth1.66M2.60%-248.84K
Vanguard US Total Market Shares ETF1.53M2.43%-
Vanguard Total Stock Mkt Idx Inv1.54M2.40%-34.11K
Federated Hermes Asia exJpn Eq R EUR Acc1.38M2.16%-
Vanguard Information Technology ETF1.25M1.95%12.10K
iShares Russell 2000 ETF1.22M1.90%-
Panview Asian Equity Master Fund1.17M1.87%504.00K
Asia Pacific Separately Mangaed Account1.01M1.58%1.01M
R51 FSSA China Growth806.90K1.29%-
Invesco Semiconductors ETF714.45K1.11%-

Recent Insider Transactions

DateNameRoleActivityValue
Dec 02, 2025Chen Fuping See remarksSell$3.32M
Dec 03, 2025Chen Fuping See remarksSell$10.07K
Dec 03, 2025Chen Fuping See remarksSell$651.09K
Nov 12, 2025Feng Lisa See remarksSell$491.40K
Nov 13, 2025Feng Lisa See remarksSell$506.55K

Insider Transactions Trends

DateBuySell
2025 Q4-5
2025 Q3-11
2025 Q2-5
2025 Q1-11
2024 Q4-23

ACMR Ownership FAQ

Who owns the most shares of ACM Research?

ACM Research’s largest shareholders are Blackrock funding, inc. /de (7.59M shares, 11.86%), Vanguard group (4.85M shares, 7.58%), and Blackrock (4.07M shares, 6.63%). Together, they hold 26.07% 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?

Triata capital is ACM Research’s biggest shareholder by percentage of total assets invested, with 9.15% of its assets in 2M ACM Research shares, valued at 78.39B$.

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 2.60% of its total shares outstanding invested in 1.66M ACM Research shares.

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