ACMR insider sells 15,000 shares via option

Lisa Yi Lu Feng reported an intended sale of 15,000 common shares of ACMR via stock option exercise on 03/06/2026 through Morgan Stanley Smith Barney LLC.

Rhea-AI Filing Summary

Lisa Yi Lu Feng reported an intended sale of 15,000 common shares of ACMR via stock option exercise on 03/06/2026 through Morgan Stanley Smith Barney LLC. The filing lists proceeds of $691,173.00. The record also shows a sale of 15,000 common shares on 03/05/2026 with proceeds of $750,148.50.

Insights

Insider Transactions Specialist

Routine Form 144 sale reported for 15,000 shares; appears administrative.

The filing lists a stock option exercise and planned sale of 15,000 common shares of ACMR on 03/06/2026 via Morgan Stanley Smith Barney LLC, with stated proceeds of $691,173.00. This matches a prior reported sale of 15,000 shares on 03/05/2026 with proceeds of $750,148.50.

These entries are typical insider disposition notices required by regulation; timing and exact settlement mechanics are set by the broker and exercise instructions. Subsequent public filings would show realized transfers; for now the record simply documents the intended transactions.

FAQ

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

What did the ACMR Form 144 disclose about the insider transaction?

The Form 144 disclosed a planned sale of 15,000 common shares. It lists a stock option exercise with proceeds of $691,173.00 on 03/06/2026, executed through Morgan Stanley Smith Barney LLC.

Who is the reporting person on the ACMR Form 144?

The reporting person is Lisa Yi Lu Feng. The filing attributes the transaction to her and provides an address in Fremont, CA, alongside broker details for Morgan Stanley Smith Barney LLC.

How many shares were reported sold in the past three months for ACMR?

The filing shows 15,000 shares sold on 03/05/2026. That prior sale lists proceeds of $750,148.50 and is included under the "Securities Sold During The Past 3 Months" section.

By what method were the ACMR shares to be sold according to Form 144?

The transaction method is listed as a stock option exercise and sale for cash. The broker listed is Morgan Stanley Smith Barney LLC and the sale date shown is 03/06/2026.

What broker handled the ACMR insider sale reported on Form 144?

The broker listed is Morgan Stanley Smith Barney LLC. The filing includes the brokers address at 1 New York Plaza, 8th Floor, New York, NY, and indicates the securities were to be sold through that firm.

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

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Accepted by SEC EDGAR 03/06/2026 - 04:03 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	0001779777
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	LISA YI LU FENG
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	Officer

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	691173.00	60705783	03/06/2026	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	03/06/2026	Stock Option Exercise	ISSUER			15000	03/06/2026	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
LISA YI LU FENG 42307 Osgood Road, Suite I Fremont CA 94539	Common	03/05/2026	15000	750148.50

144: Remarks and Signature

Remarks
Date of Notice	03/06/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/02/2025
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/ Lisa Yi Lu Feng
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)