ACMR · ACM Research, Inc.

ACM Research, Inc. completed a registered direct offering, issuing 2,884,615 shares of Class A common stock pursuant to a Securities Purchase Agreement dated May 12, 2026. The offering was conducted under an effective shelf registration statement on Form S-3 (File No. 333-278041), with a prospectus supplement filed on the same date. Closing occurred on May 15, 2026, yielding net proceeds of approximately $149,849,980 after offering expenses. This capital raise significantly bolsters the company's cash position, potentially supporting growth initiatives, R&D, or operational expansion in the semiconductor equipment sector without immediate debt obligations. Investors should note the dilution effect from the new shares, though the transaction's registered nature ensures compliance and transparency.