Stock Ownership/ACMR

ACM RESH INC (ACMR): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in ACMR · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
17
13F filers
Aggregate Value
$276.1M
Across holders
Last Price
$77.34
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity11 increased6 reduced3 exited
Full exits: BALYASNY ASSET MANAGEMENT LLC, Magnetar Financial LLC, Brevan Howard Capital Management LP
Institutional Holders of ACMR
↗
17 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund637K$80.8M29.3%0.0%Added+$41.3MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund314K$39.9M14.4%0.0%Reduced+$38.9MQ2 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund280K$35.5M12.9%0.0%Reduced$-56.4MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund230K$29.2M10.6%0.0%Added+$13.6MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund213K$27.0M9.8%0.0%Added+$20.3MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund141K$17.8M6.5%0.0%Added+$9.5MQ2 2026
SOUTHEASTERN ASSET MANAGEMENT INC/TN/
CIK 0000807985
Hedge Fund139K$17.7M6.4%0.9%Reduced$-81.6MQ2 2026
DODGE & COX
CIK 0000200217
Institutional Manager116K$14.8M5.3%0.0%Reduced$-444KQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund34K$4.3M1.5%0.0%Added—Q2 2026
SOROS FUND MANAGEMENT LLC
CIK 0001029160
Family Office30K$3.8M1.4%0.0%Added—Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$80.8M· 29.3% of total· 0.0% port· 637K sh· +$41.3M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCReduced
Hedge Fund
$39.9M· 14.4% of total· 0.0% port· 314K sh· +$38.9M QoQ· Q2 2026
Qube Research & Technologies LtdReduced
Hedge Fund
$35.5M· 12.9% of total· 0.0% port· 280K sh· $-56.4M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCAdded
Hedge Fund
$29.2M· 10.6% of total· 0.0% port· 230K sh· +$13.6M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$27.0M· 9.8% of total· 0.0% port· 213K sh· +$20.3M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$17.8M· 6.5% of total· 0.0% port· 141K sh· +$9.5M QoQ· Q2 2026
SOUTHEASTERN ASSET MANAGEMENT INC/TN/Reduced
Hedge Fund
$17.7M· 6.4% of total· 0.9% port· 139K sh· $-81.6M QoQ· Q2 2026
DODGE & COXReduced
Institutional Manager
$14.8M· 5.3% of total· 0.0% port· 116K sh· $-444K QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$4.3M· 1.5% of total· 0.0% port· 34K sh· — QoQ· Q2 2026
SOROS FUND MANAGEMENT LLCAdded
Family Office
$3.8M· 1.4% of total· 0.0% port· 30K sh· — QoQ· Q2 2026
Pinpoint Asset Management LtdAdded
Hedge Fund
$2.9M· 1.0% of total· 0.5% port· 122K sh· +$359K QoQ· Q1 2025
MARSHALL WACE, LLPReduced
Hedge Fund
$715K· 0.3% of total· 0.0% port· 6K sh· $-11K QoQ· Q2 2026
MAVERICK CAPITAL LTDAdded
Hedge Fund
$674K· 0.2% of total· 0.0% port· 5K sh· — QoQ· Q2 2026
Grantham, Mayo, Van Otterloo & Co. LLCReduced
Institutional Manager
$471K· 0.2% of total· 0.0% port· 4K sh· $-821K QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$383K· 0.1% of total· 0.0% port· 3K sh· — QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$275K· 0.1% of total· 0.0% port· 2K sh· $-1.1M QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$60K· 0.0% of total· 0.0% port· 473 sh· +$55K QoQ· Q2 2026
1–10 of 17
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