ACM Research

ACMR • NASDAQ

ACM Research is a semiconductors company in the technology sector on NASDAQ, led by David H. Wang, with a market cap of $2.5B. As of Q3 2025, 65% of shares are held by 250 institutional investors, with BlackRock, Inc. as the largest holder at 11.82%.

Chief Executive OfficerDavid H. Wang

Market Cap$2.5B

Semiconductors

Technology

Employees1.6K

Websiteacmrcsh.com

Country

United States of America

Overview

Overview of institutional ownership in ACMR as of Q3 2025 with a market cap of $2.5B

All Institutions

Institutions: 250
Value Held: $1.6B
Shares Held: 41.7M
Avg Position: $6.5M
Median Position: $703.9K

Hedge Funds

Hedge Funds: 30
Value Held: $202.7M
Shares Held: 5.2M
Avg Position: $6.8M
Median Position: $2.5M

Ownership Breakdown

Institutional (non-HF)

56.93%

$1.4B

Hedge Funds

8.07%

$202.7M

Retail & Other

35.0%

$879.0M

Based on market cap of $2.5B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in ACMR as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$296.9M 0.01% of portfolio	11.82% 7.6M shares	Q2 2018 Held for 7y 5m	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$189.6M 0.00% of portfolio	7.55% 4.8M shares	Q1 2018 Held for 7y 8m	$6.69T
L LSV ASSET MANAGEMENT Long Only Manager	Josef Nmn Lakonishok CEO	$98.0M 0.22% of portfolio	3.90% 2.5M shares	Q2 2025 Held for 5 months	$45.1B
Triata Capital Ltd Private Equity	Blake Ransom Battaglia Managing Partner	$78.4M 9.15% of portfolio	3.12% 2.0M shares	Q4 2024 Held for 11 months	$856.8M
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$77.9M 0.00% of portfolio	3.10% 2.0M shares	Q4 2019 Held for 5y 11m	$2.88T
S SOUTHEASTERN ASSET MANAGEMENT INC/TN/ Long Only Manager	Raymond Eugene Glotzbach CEO	$58.1M 2.97% of portfolio	2.31% 1.5M shares	Q2 2025 Held for 5 months	$2.0B
M Mitsubishi UFJ Trust & Banking Corp Institution	-	$53.2M 0.12% of portfolio	2.12% 1.4M shares	Q2 2020 Held for 5y 5m	$45.5B
GEODE CAPITAL MANAGEMENT LLC ETF Provider	David Kenneth Lane CEO	$51.8M 0.00% of portfolio	2.06% 1.3M shares	Q2 2018 Held for 7y 5m	$1.57T
FEDERATED INVESTORS INC /PA/ Long Only Manager	Gregory Philip Dulski Chairman	$41.5M 0.07% of portfolio	1.65% 1.1M shares	Q3 2023 Held for 2y 2m	$56.6B
Broad Bay Capital Management, LP Hedge Fund•Long/Short	Richard Scott Greeder Founder	$39.6M 4.90% of portfolio	1.58% 1.0M shares	Q1 2025 Held for 8 months	$808.0M

Net Capital Flow

Institutional buying and selling activity for ACMR in Q3 2025

Traded: +$217.2M
Buyers: 144
Sellers: 117
Total Bought: +$520.7M
Total Sold: −$303.5M
Avg Position: $5.6M

Biggest Buyers

Institution	Net Bought	Current Position
B BlackRock, Inc. Institution	+$136.2M +3.5M shares	$296.9M 7.6M shares
L LSV ASSET MANAGEMENT Long Only Manager	+$80.6M +2.1M shares	$98.0M 2.5M shares
STATE STREET CORP Institution	+$28.8M +735.6K shares	$77.9M 2.0M shares
VANGUARD GROUP INC Institution	+$21.5M +550.0K shares	$189.6M 4.8M shares
Cederberg Capital Ltd Hedge Fund•Long/Short	+$19.4M +496.5K shares	$19.4M 496.5K shares
Triata Capital Ltd Private Equity	+$16.2M +413.0K shares	$78.4M 2.0M shares
Portolan Capital Management, LLC Hedge Fund•Long/Short	+$15.9M +405.9K shares	$15.9M 405.9K shares
M MY.Alpha Management HK Advisors Ltd Institution	+$14.1M +360.2K shares	$14.1M 360.2K shares
MORGAN STANLEY RIA/Wealth	+$12.7M +325.2K shares	$34.3M 877.0K shares
S SOUTHEASTERN ASSET MANAGEMENT INC/TN/ Long Only Manager	+$11.7M +299.9K shares	$58.1M 1.5M shares

Biggest Sellers

Institution	Net Sold	Current Position
M Mitsubishi UFJ Trust & Banking Corp Institution	−$36.9M −942.4K shares	$53.2M 1.4M shares
P Pertento Partners LLP Hedge Fund•Long/Short	−$26.5M −1.0M shares	Sold Off 0 shares
Invesco Ltd. ETF Provider	−$22.7M −579.5K shares	$9.6M 246.5K shares
N Nuveen, LLC Institution	−$21.6M −551.5K shares	$6.4M 162.8K shares
UBS GLOBAL ASSET MANAGEMENT AMERICAS INC Long Only Manager	−$18.4M −469.1K shares	$2.8M 72.7K shares
FEDERATED INVESTORS INC /PA/ Long Only Manager	−$14.1M −360.5K shares	$41.5M 1.1M shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	−$12.1M −308.0K shares	$8.2M 210.3K shares
Q Qube Research & Technologies Ltd Institution	−$9.5M −365.3K shares	Sold Off 0 shares
CITIGROUP INC Institution	−$8.4M −213.8K shares	$948.1K 24.2K shares
ALGERT COLDIRON INVESTORS LLC Hedge Fund•Quant	−$7.0M −177.8K shares	$2.3M 58.8K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited ACMR in Q3 2025

New Positions: 30
New Value: $53.5M
Exited Positions: 44
Exited Value: $87.4M

New Positions

Institution	Position Value
Cederberg Capital Ltd Hedge Fund•Long/Short	$19.4M 496.5K shares
M MY.Alpha Management HK Advisors Ltd Institution	$14.1M 360.2K shares
SELDON CAPITAL LP Hedge Fund•Multi-Strategy	$7.6M 193.2K shares
PRUDENTIAL FINANCIAL INC Institution	$2.1M 52.7K shares
THRIVENT FINANCIAL FOR LUTHERANS Insurance Manager	$1.5M 38.0K shares
S State of Alaska, Department of Revenue Institution	$1.0M 25.9K shares
Belpointe Asset Management LLC RIA/Wealth	$988.9K 25.3K shares
Empirical Financial Services, LLC RIA/Wealth	$831.4K 21.2K shares
G Grantham, Mayo, Van Otterloo & Co. LLC Long Only Manager	$727.9K 18.6K shares
YOUSIF CAPITAL MANAGEMENT, LLC Long Only Manager	$649.6K 16.6K shares

Exited Positions

Institution	Previous Position
P Pertento Partners LLP Hedge Fund•Long/Short	$26.5M 1.0M shares
Q Qube Research & Technologies Ltd Institution	$9.5M 365.3K shares
OSTERWEIS CAPITAL MANAGEMENT INC Long Only Manager	$6.9M 266.4K shares
R Ruffer LLP Long Only Manager	$6.9M 264.7K shares
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	$6.5M 252.3K shares
OBERWEIS ASSET MANAGEMENT INC/ Long Only Manager	$6.4M 247.0K shares
S Squarepoint Ops LLC Hedge Fund•Quant	$4.0M 155.1K shares
Centiva Capital, LP Hedge Fund•Multi-Strategy	$3.4M 132.9K shares
A AXA Institution	$2.3M 87.5K shares
Jackson Creek Investment Advisors LLC Long Only Manager	$2.0M 77.1K shares

Options Activity

Institutions with the largest Call and Put options positions in ACMR as of Q3 2025

Call Positions: 16
Call Value: $119.4M
Put Positions: 14
Put Value: $84.5M

Call Positions

Institution	Position Value
P PEAK6 LLC Institution	$50.2M 12.8K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$27.3M 7.0K contracts
J JANE STREET GROUP, LLC Institution	$11.3M 2.9K contracts
W WOLVERINE TRADING, LLC Institution	$7.5M 1.9K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$6.2M 1.6K contracts
N NOMURA HOLDINGS INC Institution	$3.9M 1.0K contracts
Caption Management, LLC Hedge Fund•Long/Short	$3.7M 951.0 contracts
Toroso Investments, LLC ETF Provider	$3.0M 759.0 contracts
UBS Group AG Institution	$2.0M 507.0 contracts
S Squarepoint Ops LLC Hedge Fund•Quant	$1.3M 330.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$25.7M 6.6K contracts
J JANE STREET GROUP, LLC Institution	$19.3M 4.9K contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$16.6M 4.2K contracts
P PEAK6 LLC Institution	$8.4M 2.1K contracts
W WOLVERINE TRADING, LLC Institution	$4.7M 1.2K contracts
B BNP PARIBAS ARBITRAGE, SA Institution	$4.3M 11.0 contracts
S Squarepoint Ops LLC Hedge Fund•Quant	$2.0M 516.0 contracts
UBS Group AG Institution	$1.4M 368.0 contracts
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	$1.3M 338.0 contracts
C Cubist Systematic Strategies, LLC Institution	$375.6K 96.0 contracts

Most Committed Institutions

Institutions with ACMR as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
Cederberg Capital Ltd Hedge Fund•Long/Short	Dawid Nmn Krige CEO	76.01% $19.4M	0.77% 496.5K shares	Q3 2025 Held for 2 months	$25.6M
Triata Capital Ltd Private Equity	Blake Ransom Battaglia Managing Partner	9.15% $78.4M	3.12% 2.0M shares	Q4 2024 Held for 11 months	$856.8M
M MY.Alpha Management HK Advisors Ltd Institution	-	9.13% $14.1M	0.56% 360.2K shares	Q3 2025 Held for 2 months	$154.5M
S Steamboat Capital Partners, LLC Hedge Fund•Long/Short	Parsa Nmn Kiai Managing Partner	5.35% $20.5M	0.82% 525.0K shares	Q1 2024 Held for 1y 8m	$384.1M
Broad Bay Capital Management, LP Hedge Fund•Long/Short	Richard Scott Greeder Founder	4.90% $39.6M	1.58% 1.0M shares	Q1 2025 Held for 8 months	$808.0M
YIHENG CAPITAL LLC Hedge Fund•Long/Short	Yuanshan Guo Managing Partner	3.68% $11.0M	0.44% 280.2K shares	Q1 2020 Held for 5y 8m	$297.8M
Kerrisdale Advisers, LLC Hedge Fund•Long/Short	Sahm Adrangi CIO	3.58% $6.9M	0.28% 176.6K shares	Q3 2024 Held for 1y 2m	$192.9M
S SOUTHEASTERN ASSET MANAGEMENT INC/TN/ Long Only Manager	Raymond Eugene Glotzbach CEO	2.97% $58.1M	2.31% 1.5M shares	Q2 2025 Held for 5 months	$2.0B
SELDON CAPITAL LP Hedge Fund•Multi-Strategy	Matthew A Fong Managing Partner	2.66% $7.6M	0.30% 193.2K shares	Q3 2025 Held for 2 months	$284.5M
WEXFORD CAPITAL LP Hedge Fund•Multi-Strategy	Charles Eugene Davidson Chairman	2.20% $7.3M	0.29% 185.9K shares	Q1 2025 Held for 8 months	$330.0M

Hedge Fund Spotlight

Discover hedge funds investing in ACMR

GSA CAPITAL PARTNERS LLP

Hedge Fund • Quant

Portfolio ManagerDavid Khabie-Zeitoune

Portfolio Value: $1.1B
Positions: 1,504
Last Reported: Q3 2025

Sector Allocation

Position in ACM Research

Market Value: $447.0K
Shares Held: 11.4K
Portfolio Weight: 0.04%
Owned Since: 2022-Q4

Top Holding	Sector	Market Value	Weight
1 Accenture ACN	Information Technology Services Technology	$5.6M	0.50%
2 Sprouts Farmers Market SFM	Grocery Stores Consumer Defensive	$5.2M	0.46%
3 Microsoft MSFT	Software - Infrastructure Technology	$4.8M	0.43%