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. officer Mark McKechnie exercised stock options and sold the resulting shares. He exercised options covering 98,551 shares of Class A common stock at exercise prices of $13.89 and $19.49 per share, then sold 98,551 shares in open-market transactions at weighted average prices in the mid-$40s. The sales were carried out under a pre-arranged Rule 10b5-1 trading plan adopted on August 27, 2025, indicating the transactions were scheduled in advance rather than timed discretionarily.
ACM Research insider David H. Wang, a director, officer and more than 10% owner, exercised stock options and sold shares of Class A Common Stock. On March 11–12, 2026, he exercised options for a total of 110,000 shares at an exercise price of $1.00 per share.
Over the same two days, Wang executed open-market sales totaling 110,000 shares at weighted average prices ranging from the mid‑$44 to high‑$48 range, under a pre-arranged Rule 10b5‑1 trading plan adopted on November 29, 2024. After these transactions, he held 802,708 shares directly, plus additional indirect holdings through family members and family trusts.
ACM Research, Inc. director Tracy Liu reported an exercise-and-sell transaction involving company stock. On March 10–11, 2026, Liu exercised stock options to acquire a total of 60,000 shares of Class A Common Stock at an exercise price of $1.00 per share. The same 60,000 shares were then sold in open-market transactions at weighted average prices within ranges from $46.67 to $48.50, under a pre-arranged Rule 10b5-1 trading plan adopted on December 4, 2025. After these transactions, Liu directly held 110,772 shares of Class A Common Stock.
Morgan Stanley Smith Barney LLC submitted a Form 144 notice for the proposed sale of 50,000 shares of Common Stock related to a stock option exercise dated 03/12/2026. The filing records the method as cash and lists the transaction in connection with securities traded on NASDAQ.
The notice also discloses a prior sale of 60,000 shares on 03/11/2026 with an aggregate reported value of $2,875,386.00.
ACM Research, Inc. director Haiping Dun exercised stock options for 5,000 shares of Class A Common Stock at $5.60 per share, then sold 5,000 shares in open-market transactions around $43–$44 per share. These sales were made under a pre-arranged Rule 10b5-1 trading plan adopted on August 13, 2025. Following the trades, Dun reported no direct Class A Common Stock holdings, while continuing to hold 55,000 stock options and indirect ownership of 100,000 and 755,090 Class A shares through family trusts.
ACMR affiliate reported a proposed sale of 15,000 common shares under a Form 144. The filing lists the planned sale as a stock option exercise to be effected on 03/11/2026 and indicates cash as the method. The excerpt also shows 45,000 common shares sold on 03/10/2026 for 2,132,248.50 as a recent disposition.
ACM Research director Charles C. Pappis reported a stock option exercise and related share sale. On March 5, 2026, he exercised a previously issued option for 5,000 shares of Class A Common Stock, receiving the shares at an exercise price of $29.1800 per share.
That same day, he sold 5,000 shares of Class A Common Stock in an open-market transaction at $50.0900 per share, leaving him with 0 shares directly owned after the transactions. The sale was carried out under a pre-established Rule 10b5-1 trading plan adopted on November 20, 2025, and the option was fully vested and exercisable.