ACMRACM Research, Inc.

$79.06

Who owns ACMR

294 institutions reported holding ACMR for 2026Q1, together 63% of the company, more than the 272 a quarter earlier.

294

Institutions reporting a position · as of 2026Q1 · up from 272 the quarter before

Shares held by institutions
44.0M

Shares held by institutions · 63% of the company · long US equity positions only, as reported on Form 13F

Reported value
$1.73B

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
26%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
34
New positions
67
Positions exited
49
Added to
72
Reduced
97
Top 10 holdersof the company
33%
Institutional ownership by quarter, 2017Q4 to 2026Q1
QuarterFilersSharesReported value
2026Q129444.0M$1.73B
2025Q427244.9M$1.77B
2025Q325641.7M$1.63B
2025Q224237.4M$969M
2025Q124035.9M$838M
2024Q418235.7M$539M
2024Q318432.3M$657M
2024Q220133.6M$774M
2024Q120032.8M$956M
2023Q415532.9M$643M
2023Q315431.1M$563M
2023Q212129.2M$382M
2023Q112929.4M$343M
2022Q412130.5M$235M
2022Q311634.9M$435M
2022Q29636.0M$606M
Largest reported holders, 2026Q1
HolderShares% of companyValue
BlackRock Inc.8.0M11%$314M
VANGUARD GROUP INC4.9M7.0%$192M
STATE STREET CORP2.0M2.9%$79M
WCM INVESTMENT MANAGEMENT, LLC1.9M2.7%$71M
GEODE CAPITAL MANAGEMENT LLC1.4M2.0%$54M
MORGAN STANLEY1.2M1.7%$47M
HENDERSON GROUP PLC1.1M1.6%$43M
Value Aligned Research Advisors, LLC1.0M1.4%$38M
Invesco Ltd.0.8M1.1%$31M
SOUTHEASTERN ASSET MANAGEMENT INC/TN/0.8M1.1%$31M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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