Welcome to our dedicated page for Acm Research SEC filings (Ticker: ACMR), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
ACM Research, Inc. filings document the company’s semiconductor process-equipment business, reported operating results, governance matters, and capital-structure events tied to its U.S.-listed parent company and ACM Research (Shanghai), Inc. Forms 8-K furnish quarterly and annual results releases, preliminary revenue and shipment disclosures, subsidiary public-market announcements, and completed changes in ACM’s ownership interest in ACM Shanghai.
Proxy filings cover annual meeting proposals, including director elections and auditor ratification. The filing record also includes disclosures on ACM Shanghai’s STAR Market listing context, shareholder voting matters, material-event reporting, and related governance and ownership information for the company’s operating structure.
ACM Research, Inc. director and officer David H. Wang reported a mix of open-market sales and option exercises in Class A common stock. On June 3–4, he sold a total of 100,002 shares in multiple open-market transactions, including sales of 1,187 shares at $93.04 and 2,060 shares at $83.86 per share.
Over the same two days, Wang exercised stock options to acquire 100,002 shares of Class A common stock at a $1.00 per share exercise price, with the options fully vested and exercisable. Following these transactions, he holds 842,710 Class A shares directly, along with several indirect positions through family trusts and related accounts. The filing notes that the sales were made under a Rule 10b5-1 trading plan adopted on November 29, 2024, indicating the trades were pre-scheduled rather than discretionary.
ACMR notices a proposed sale of Common Stock via a Form 144 filing. The excerpt lists a Stock Option Exercise with an entry of 5,399 shares dated 06/05/2026 and a reported sale of 13,351 shares on 06/04/2026 for $1,136,821.63.
ACMR filed a Rule 144 notice reporting recent dispositions of Common Stock and a related option exercise. The filing lists three past sales by Hui Wang: 60,000 shares on 06/03/2026, 50,000 shares on 03/12/2026, and 60,000 shares on 03/11/2026 with dollar amounts shown. It also lists a stock option exercise on 06/04/2026 for 40,002 shares classified as ISSUER and paid in cash.
ACMR reports a proposed sale of 60,000 common shares under Rule 144. The filing lists 06/03/2026 as the sale date and identifies Morgan Stanley Smith Barney LLC Executive Financial Services as the broker. The method is described as a Stock Option Exercise with Cash settlement. The excerpt also shows prior sales by Hui Wang of 50,000 shares on 03/12/2026 for $2,278,825.00 and 60,000 shares on 03/11/2026 for $2,875,386.00.
ACM Research, Inc. reports that its operating subsidiary ACM Research (Shanghai), Inc. has board approval to pursue an H share offering and listing on the Main Board of the Hong Kong Stock Exchange. ACM Shanghai plans to issue H shares representing no more than 7% of its total issued share capital upon completion of the offering, with an over-allotment option of up to 15% of the initial H shares.
The H shares will be ordinary shares with a par value of RMB 1.00, offered through a Hong Kong public offering and international placing. Net proceeds are intended for product development, strengthening research and development, expanding global market and service capabilities, general working capital, and repayment of bank loans.
The plan, along with extensive related governance and structural changes, has been unanimously approved by ACM Shanghai’s board but remains subject to shareholder approval and multiple regulatory filings and clearances in mainland China and Hong Kong. The resolution for the H share listing would be valid for 24 months from shareholder approval, with automatic extension until completion of the listing and any over-allotment exercise if approvals are obtained within that period.
ACM Research, Inc. reported that its subsidiary ACM Research (Shanghai), Inc. held an investor earnings conference call on May 14, 2026, in connection with its listing on the STAR Market of the Shanghai Stock Exchange. Management said new orders signed in the first quarter of 2026 grew 65% year over year, which they described as a favorable foundation for future revenue. They explained that order delivery and revenue recognition depend on installation, commissioning, inspection and customer acceptance, with an average delivery cycle of about six months.
ACM Shanghai highlighted progress in its high-temperature single-wafer SPM cleaning tools, stating these can control down to 15 particles at the 15 nm level and avoid periodic DI water cleaning through a patented nozzle design. Management plans to further improve performance toward 13 nm particle sizes and expects to deliver more than 20 medium- to low-temperature and high-temperature SPM tools to multiple customers in 2026. The company emphasized forward-looking risks, including order timing, qualification and acceptance of tools, supply constraints, market acceptance, competition and global regulatory and macroeconomic conditions.
ACM Research, Inc. director Haiping Dun reported a mix of option exercises and share sales in Class A Common Stock. On May 19, 2026, he exercised stock options for 5,000 shares at an exercise price of $5.60 per share, then sold 5,000 shares in multiple open-market transactions at prices between $63.84 and $67.54. The filing notes these sales were made under a pre-arranged Rule 10b5-1 trading plan adopted on August 13, 2025. After these transactions, he reported no directly held Class A Common Stock, while indirect holdings include 755,090 shares held by the Haiping Dun & Chi-Pin H Dun Revocable Trust and 100,000 shares held by the Dun Family GST Trust.
ACMR submission notifies the proposed sale of 5,000 shares via a stock option exercise by an issuer-related plan on 05/19/2026. The filing shows prior sales of 5,000 shares on 03/09/2026 with a listed amount of $217,344.00.
The filing lists cash as the consideration method for the exercise and identifies the broker as Morgan Stanley Smith Barney LLC. The notice is an offering-related disclosure under Form 144 and records transaction details rather than company operating results.
ACM Research, Inc. completed a registered direct stock offering of 2,884,615 shares of Class A common stock at $52.00 per share under an effective Form S-3 shelf registration. The transaction closed on May 15, 2026, and the company received approximately $149,849,980 in net proceeds after estimated expenses.