AMBA Form 144: 50,000-share proposed sale

AMBA submitted a Form 144 disclosing a proposed sale of 50,000 common shares by Morgan Stanley Smith Barney LLC tied to the exercise of stock options for cash on 03/02/2026.

Rhea-AI Filing Summary

AMBA submitted a Form 144 disclosing a proposed sale of 50,000 common shares by Morgan Stanley Smith Barney LLC tied to the exercise of stock options for cash on 03/02/2026. The filing also lists shares outstanding of 43,050,486 as of 03/02/2026.

The filing records prior sales by Feng‑Ming Wang: 15,000 shares on 01/20/2026 for $993,865.50 and 4,950 shares on 12/17/2025 for $355,509.00.

FAQ

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

What does AMBA's Form 144 disclose?

The Form 144 discloses a proposed sale of 50,000 common shares by Morgan Stanley Smith Barney LLC on 03/02/2026. It notes the sale is connected to the exercise of stock options and intended to be for cash.

How many shares outstanding does AMBA report in this filing?

The filing lists 43,050,486 shares outstanding as of 03/02/2026. This number appears on the securities information line and serves as a baseline context in the Form 144 excerpt provided.

Who previously sold AMBA shares in the past three months?

The filing records prior sales by Feng‑Ming Wang: 15,000 shares on 01/20/2026 for $993,865.50 and 4,950 shares on 12/17/2025 for $355,509.00 as listed in the excerpt.

What method of sale is indicated for the 50,000 shares?

The excerpt states the 50,000 shares relate to the exercise of stock options and that the sale method is for cash. The filing names Morgan Stanley Smith Barney LLC as the broker-dealer involved.

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

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Accepted by SEC EDGAR 03/02/2026 - 04:37 PM EST 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	0001558686
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	AMBARELLA INC.
SEC File Number	001-35667
Address of Issuer	3001 Tasman Drive Santa Clara, CALIFORNIA 95054
Phone	4087348888
Name of Person for Whose Account the Securities are To Be Sold	FENG-MING WANG
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
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	50000	3017000.00	43050486	03/02/2026	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	03/02/2026	Exercise of Stock Options	Issuer			50000	03/02/2026	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
FENG-MING WANG 3001 Tasman Drive Santa Clara, CA 95054	Common	01/20/2026	15000	993865.50
FENG-MING WANG 3001 Tasman Drive Santa Clara, CA 95054	Common	12/17/2025	4950	355509.00

144: Remarks and Signature

Remarks
Date of Notice	03/02/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	10/08/2025
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/ Feng-Ming Wang
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)