[144] Ambarella, Inc. SEC Filing

Rhea-AI Filing Summary

Ambarella, Inc. (AMBA) Form 144 notice reports a proposed sale of 8,492 shares of Ambarella common stock through Morgan Stanley Smith Barney LLC. The filer acquired these shares as restricted stock on 06/15/2019. The planned approximate sale date is 09/10/2025 on the NASDAQ, with an aggregate market value reported at $716,894.64. The filing lists 42,689,006 shares outstanding, and indicates no related sales in the past three months. The notice includes the standard representation that the seller is unaware of any undisclosed material adverse information and a signature declaration regarding the accuracy of the notice.

Positive

• Complete transaction details provided: class, quantity (8,492), acquisition date (06/15/2019), broker, and planned sale date (09/10/2025).
• No sales in prior three months, which clarifies recent disposition activity for the account.
• Filer includes required representation affirming no undisclosed material adverse information and signature declaration.

Negative

• Filer identification incomplete: CIK/CCC and submission contact fields are blank in the provided content.
• Limited context on materiality: filing contains no statement about reason for sale or whether proceeds affect control interests.

Insights

Securities Compliance Analyst

TL;DR: Routine insider sale notice for 8,492 restricted shares to be sold through Morgan Stanley on NASDAQ.

The Form 144 is a standard compliance disclosure required when affiliated persons propose to sell restricted or control securities. Key facts are explicit: 8,492 shares originated as restricted stock on 06/15/2019, listed broker is Morgan Stanley Smith Barney LLC, planned sale date 09/10/2025, and aggregate market value $716,894.64. The notice states no other sales in the prior three months and includes the customary representation about lack of undisclosed material adverse information. From a compliance standpoint, the filing meets the Rule 144 public notice function by providing the necessary transaction and acquisition details.

Equity Capital Markets Analyst

TL;DR: This is a routine disclosure of an insider intending to sell a small block relative to total shares outstanding.

The document quantifies the sale as 8,492 shares with an aggregate value of $716,894.64 against 42,689,006 shares outstanding. These explicit figures allow investors to assess the size of the proposed sale relative to the public float. The filing does not include any execution details beyond the approximate sale date and broker, and it records that the shares were issued as restricted stock in 2019. There is no report of prior sales in the last three months. Overall, the filing is informational and procedural rather than material on its face.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	8492	716894.64	42689006	09/10/2025	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	06/15/2019	Restricted Stock	Issuer			8492	06/15/2019	Not Applicable

* 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

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does Ambarella's (AMBA) Form 144 disclose?

The Form 144 discloses a proposed sale of 8,492 Ambarella common shares through Morgan Stanley Smith Barney LLC with an approximate sale date of 09/10/2025 and aggregate market value of $716,894.64.

When were the shares to be sold originally acquired?

The shares were acquired as restricted stock on 06/15/2019.

How many Ambarella shares outstanding does the filing list?

The filing lists 42,689,006 shares outstanding.

Does the Form 144 report any sales in the past three months?

The filing explicitly states Nothing to Report for securities sold during the past three months.

Which broker is named for the proposed sale?

The named broker is Morgan Stanley Smith Barney LLC, Executive Financial Services, 1 New York Plaza 8th Floor, New York, NY 10004.