AMBA Form 144: Insider sales of 48,704 shares

AMBA Regulation 144 notice reporting recent sales of Common stock by affiliated parties.

Rhea-AI Filing Summary

AMBA Regulation 144 notice reporting recent sales of Common stock by affiliated parties. The filing lists three dispositions: 6,204 shares sold on 06/17/2026 for $421,065.48; 10,000 shares sold on 06/17/2026 for $660,820.00; and a 10b5-1 plan sale of 32,500 shares on 05/26/2026 for $2,957,755.13. The filing identifies 16,250 shares of Restricted Stock Units dated 06/15/2015 and lists a broker affiliation as Morgan Stanley Smith Barney LLC.

Insights

Securities Compliance Counsel

Regulation 144 report of multiple sales, including a 10b5-1 plan sale; disclosure is routine.

The notice documents dispositions of Common stock by named parties, including a 10b5-1 sale of 32,500 shares on 05/26/2026 and two sales on 06/17/2026 totaling 16,204 shares. The filing also lists 16,250 Restricted Stock Units dated 06/15/2015.

Cash‑flow treatment and any issuer proceeds are not stated in the excerpt; timing and broker information are provided. Subsequent filings or broker confirmations would show settlement details and whether these sales satisfied holding‑period or volume conditions.

Key Figures

Restricted Stock Units: 16,250 shares 10b5-1 sale: 32,500 shares Sale by Feng‑Ming Wang: 6,204 shares +2 more

5 metrics

Restricted Stock Units 16,250 shares grant date 06/15/2015

10b5-1 sale 32,500 shares sale date 05/26/2026 for <money>$2,957,755.13</money>

Sale by Feng‑Ming Wang 6,204 shares sale date 06/17/2026 for <money>$421,065.48</money>

Sale by Fermi & Aida Wang Donation Fund 10,000 shares sale date 06/17/2026 for <money>$660,820.00</money>

Broker listed Morgan Stanley Smith Barney LLC 1 New York Plaza, 8th Floor (listed in filing)

Key Terms

Restricted Stock Units, 10b5-1, Form 144

3 terms

Restricted Stock Units financial

"Restricted Stock Units | Issuer | 16250 | 06/15/2015"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

10b5-1 regulatory

"10b5-1 Sales for FENG-MING WANG | Common | 05/26/2026 | 32500"

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

FAQ

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

What sales does AMBA's Form 144 list?

The Form 144 shows three dispositions: 32,500 shares sold under a 10b5-1 plan on 05/26/2026 for $2,957,755.13, and sales of 6,204 and 10,000 shares on 06/17/2026 for $421,065.48 and $660,820.00, respectively.

Who executed the sales reported in AMBA's filing?

The filing identifies individual and entity sellers: Feng‑Ming Wang (6,204 shares), and Fermi & Aida Wang Donation Fund (10,000 shares). The 10b5-1 sale is also attributed to Feng‑Ming Wang in the excerpt.

Does the filing show restricted awards for AMBA?

Yes. The excerpt lists Restricted Stock Units with a grant date of 06/15/2015 and a quantity of 16,250 units under the issuer line shown in the notice.

Which broker or dealer is listed on the Form 144?

The filing lists Morgan Stanley Smith Barney LLC at 1 New York Plaza, New York, NY, as the broker/dealer affiliation associated with the reported securities transactions.

Are proceeds or issuer receipt of funds specified in this Form 144?

The excerpt lists gross sale amounts for each disposition (e.g., $2,957,755.13), but it does not state whether the issuer received any proceeds or how proceeds were treated in the provided text.

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

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Accepted by SEC EDGAR 07/01/2026 - 04:17 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	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	16250	1394250.00	43868185	07/01/2026	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	06/15/2015	Restricted Stock Units	Issuer			16250	06/15/2015	N/A

* 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	06/17/2026	6204	421065.48
Fermi & Aida Wang Donation Fund 3001 Tasman Drive Santa Clara CA 95054	Common	06/17/2026	10000	660820.00
10b5-1 Sales for FENG-MING WANG 3001 Tasman Drive Santa Clara CA 95054	Common	05/26/2026	32500	2957755.13

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units during the period of 06/15/2015 through 03/15/2022.
Date of Notice	07/01/2026
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)