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ACM Research Ownership | Who Owns ACM Research?

OverviewForecastRevenueFinancialsChartTranscripts

ACM Research Ownership Summary

ACM Research is owned by 23.24% institutional investors, 12.78% insiders, and 63.98% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 12.44% of ACMR shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 4.90% of its assets in ACM Research shares.

ACMR Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockACM Research23.24%12.78%63.98%
SectorTechnology Stocks 36.93%14.89%48.18%
IdeaSemiconductor Stocks List 48.16%6.95%44.89%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de7.98M12.44%$314.20M
Vanguard group4.97M7.72%$196.15M
Blackrock4.07M6.63%$93.87M
Triata capital2.00M3.13%$78.39B
State street2.01M3.13%$78.94M
Wcm investment management1.86M2.90%$70.58M
Geode capital management1.37M2.14%$53.97M
Morgan stanley1.19M1.86%$46.93M
Janus henderson group1.09M1.69%$42.70M
Invesco787.10K1.23%$30.97M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Cederberg capital599.20K12.65%$23.58M
Tekne capital management715.00K11.89%$28.14M
Triata capital2.00M9.15%$78.39B
My.alpha management hk advisors360.24K9.13%$14.10M
Polunin capital partners763.32K8.25%$31.81M
Oxbow capital management (hk)596.69K6.33%$23.48M
Panview asian equity master fund663.20K3.86%$15.29M
Wexford capital lp599.25K3.42%$23.58M
Kerrisdale advisers223.75K3.35%$8.80M
Matthews capital management138.81K2.22%$5.46M

Top Buyers

HolderShares% AssetsChange
Wcm investment management1.86M0.16%1.85M
Polunin capital partners763.32K8.25%763.32K
Longaeva partners708.38K1.03%708.38K
Oxbow capital management (hk)596.69K6.33%596.69K
Qube research724.40K0.03%578.35K

Top Sellers

HolderShares% AssetsChange
Lsv asset management545.31K0.05%-1.84M
Fuller & thaler asset management---1.27M
Pertento partners llp---1.02M
Southeastern asset management inc/tn/782.90K1.52%-897.28K
Point72 hong kong---761.16K

New Positions

HolderShares% AssetsChangeValue
Polunin capital partners763.32K8.25%763.32K$31.81M
Longaeva partners708.38K1.03%708.38K$27.87M
Oxbow capital management (hk)596.69K6.33%596.69K$23.48M
My.alpha management hk advisors360.24K9.13%360.24K$14.10M
Vanguard fiduciary trust341.40K0.00%341.40K$13.43M

Sold Out

HolderChange
Assetmark-1.00
Clearstead advisors-1.00
Innealta capital-3.00
Hollencrest capital management-5.00
Turning point benefit group-9.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Mar 31, 2026149-50.66%14,914,946-67.03%230.47%65-61.54%53-37.65%
Dec 31, 202579-72.08%8,417,862-79.85%130.31%45-70.20%24-68.42%
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%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
iShares Core S&P Small-Cap ETF3.25M4.90%723.00
Vanguard Total Stock Mkt Idx Inv1.62M2.47%4.61K
Vanguard US Total Market Shares ETF1.53M2.43%-
Federated Hermes Asia exJpn Eq R EUR Acc1.38M2.16%-
Vanguard Information Technology ETF1.31M2.00%6.96K
Panview Asian Equity Master Fund1.17M1.87%504.00K
iShares Russell 2000 ETF1.21M1.83%10.20K
R51 FSSA China Growth806.90K1.29%-
Invesco Semiconductors ETF825.81K1.26%-
Janus Henderson Hrzn GlbTechLdrs A2USD699.27K1.06%232.63K

Recent Insider Transactions

DateNameRoleActivityValue
May 19, 2026Dun Haiping-Sell$125.49K
May 19, 2026Dun Haiping-Sell$87.98K
May 19, 2026Dun Haiping-Sell$32.55K
May 19, 2026Dun Haiping-Sell$85.10K
Apr 17, 2026Pappis Charles C-Sell$260.00K

Insider Transactions Trends

DateBuySell
2026 Q2-5
2026 Q1-22
2025 Q4-12
2025 Q3-11
2025 Q2-5

ACMR Ownership FAQ

Who owns the most shares of ACM Research?

ACM Research’s largest shareholders are Blackrock funding, inc. /de (7.98M shares, 12.44%), Vanguard group (4.97M shares, 7.72%), and Blackrock (4.07M shares, 6.63%). Together, they hold 26.80% 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?

Cederberg capital is ACM Research’s biggest shareholder by percentage of total assets invested, with 12.65% of its assets in 599.2K ACM Research shares, valued at 23.58M$.

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

iShares Core S&P Small-Cap ETF is the top mutual fund holder of ACM Research shares, with 4.90% of its total shares outstanding invested in 3.25M ACM Research shares.

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