ACMR affiliate files Form 144 to sell 15,000 shares

ACMR affiliate reported a proposed sale of 15,000 common shares under a Form 144.

Rhea-AI Filing Summary

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.

Insights

Securities Compliance Counsel

Form 144 notifies the market of an affiliate sale via option exercise on 03/11/2026.

The filing lists 15,000 common shares to be sold following a stock option exercise with cash proceeds. It also records a recent sale of 45,000 common shares on 03/10/2026 for 2,132,248.50.

These notices are procedural disclosures under resale rules; cash‑flow treatment is stated as Cash. Subsequent filings may report completion details and any changes in quantities.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the ACMR Form 144 report say about the sale?

The filing reports a proposed sale of 15,000 common shares via a stock option exercise on 03/11/2026. It also discloses a recent sale of 45,000 common shares on 03/10/2026 for $2,132,248.50.

Who is the seller listed on the ACMR Form 144?

The excerpt identifies an affiliate relationship through the Form 144 header; a specific seller address is shown for a recent sale: Tracy Dong Liu at the Fremont, CA address listed with the prior transaction.

What sale method and proceeds are shown in the filing?

The proposed sale of 15,000 shares is listed as occurring through a stock option exercise with payment in Cash. A prior sale of 45,000 shares generated $2,132,248.50 as disclosed.

When are the transactions dated in the ACMR excerpt?

The proposed sale is dated 03/11/2026 and the prior sale is dated 03/10/2026. Both dates are presented verbatim in the filing excerpt.

Does the Form 144 show who receives the cash proceeds?

The excerpt states the sale method as Cash for the proposed transaction; it does not specify the recipient of proceeds beyond listing the issuer/method in the provided lines.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/11/2026 - 04:06 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001721299
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	ACM RESEARCH, INC.
SEC File Number	001-38273
Address of Issuer	42307 Osgood Road, Suite I Fremont CALIFORNIA 94539
Phone	(510) 445-3700
Name of Person for Whose Account the Securities are To Be Sold	TRACY DONG LIU
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	15000	718666.50	65705783	03/11/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	03/11/2026	Stock Option Exercise	ISSUER			15000	03/11/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
TRACY DONG LIU 42307 Osgood Road, Suite I Fremont CA 94539	Common	03/10/2026	45000	2132248.50

144: Remarks and Signature

Remarks
Date of Notice	03/11/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/04/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Tracy Dong Liu
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)