BlackRock, Inc.

13F Holdings History for ACM Research, Inc. - Class A Stock (ACMR)

Symbol: ACMR on Nasdaq
Investment type: Equity / Class A Stock
Latest Disclosed Ownership: 7.42M shares
Security Ownership: 12.6%

Shares, Excluding Options vs Price

Value, Excluding Options

BlackRock, Inc. ownership in ACM Research, Inc. Class A Stock (ACMR)

2025-10-02 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 7.42M shares of ACM Research, Inc. Class A Stock (ACMR). This represents 12.6% percent ownership of the company. In their previous filing dated 2025-04-17, BlackRock, Inc. had reported owning 3.83M shares, indicating an increase of 93.8% percent.

Reporting Name	Ownership %	Change	Value $	Shares owned	Change	Activity %	Price	Form	Report date	Filed at
BlackRock, Inc.	12.6%	+85.7%	$200M	7.42M	+3,591,868	+93.8%	$26.97	13G/A	9/30/2025	2 Oct 2025 18:46:03
BlackRock, Inc.	6.6%		$70.5M	3.83M			$18.42	13G/A	3/31/2025	17 Apr 2025 09:35:26

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
6/30/2025	0%	0%	$106M	4.11M	-106,364	-2.52%	$25.90	Q2 2025
3/31/2025	0%	0%	$98.3M	4.21M	-690,735		$23.34	Q1 2025
12/31/2024	0%	+0%	$74M	4.9M	+460,908	+10.4%	$15.10	Q4 2024
9/30/2024	0%		$90.2M	4.44M			$20.30	Q3 2024

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.