OUST Insider Notice: 18,011 Shares Proposed Sale on NASDAQ

Rhea-AI Filing Summary

Ouster, Inc. (OUST) filed a Form 144 notifying the proposed sale of 18,011 shares of its common stock, with an aggregate market value of $513,493.61, expected to be sold on 09/12/2025 on the NASDAQ. The securities were acquired as restricted stock awards and restricted stock units awarded under the company's incentive award plan on various grant dates, with amounts totaling 30,465, 4,500, 225, and 2,083 across the listed grants. The filer previously sold 2,828 shares on 06/12/2025 for gross proceeds of $53,066.29. The filer certifies they are not aware of undisclosed material adverse information about the issuer.

Insights

Securities Analyst

TL;DR: Insider intends to sell 18,011 restricted shares worth $513k; recent small sale occurred in June 2025.

The Form 144 documents a proposed sale by an insider of 18,011 shares of Ouster common stock, to be executed on the NASDAQ on 09/12/2025, with an indicated aggregate market value of $513,493.61. The shares originate from restricted stock awards and restricted stock units issued under the company's incentive award plan on multiple grant dates. The filing also discloses a prior sale of 2,828 shares on 06/12/2025 for $53,066.29. For investors, this is a routine Rule 144 notice that provides transparency on insider liquidity but does not, by itself, convey information about company operations or financial performance.

Corporate Governance Specialist

TL;DR: This is a compliance disclosure of an insider sale under Rule 144, showing grant-origin and prior disposition.

The filing specifies the nature of acquisition as restricted stock awards and RSUs from the issuer, listing grant-specific amounts and original acquisition dates. The signer affirms no undisclosed material adverse information. The disclosure aligns with Rule 144 requirements and assists in assessing timing and source of insider sales, but it does not indicate any change in governance or control.

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 Stock	ETRADE FINANCIAL CORPORATION 3 EDISON DRIVE ALPHARETTA GA 30005	18011	513493.61	57819244	09/12/2025	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 Stock	09/11/2025	Restricted stock awards awarded under incentive award plan	Issuer			30465	03/28/2024	Services rendered
Common Stock	09/11/2025	Restricted stock units awarded under incentive award plan	Issuer			4500	03/16/2023	Services rendered
Common Stock	09/11/2025	Restricted stock units awarded under incentive award plan	Issuer			225	08/10/2022	Services rendered
Common Stock	09/11/2025	Restricted stock units awarded under incentive award plan	Issuer			2083	01/25/2023	Services rendered

* 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
Megan Chung 350 Treat Avenue San Francisco CA 94110	Common Stock	06/12/2025	2828	53066.29

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 OUST's Form 144 disclose about insider sales?

The filing discloses a proposed sale of 18,011 shares (aggregate market value $513,493.61) scheduled for 09/12/2025, and a prior sale of 2,828 shares on 06/12/2025 for $53,066.29.

Where will the shares be sold according to the Form 144 for OUST?

The proposed sale is listed to occur on the NASDAQ exchange.

How were the securities being sold acquired?

The securities were acquired as restricted stock awards and restricted stock units awarded under Ouster's incentive award plan on various grant dates.

Does the filer state any undisclosed material information about Ouster?

The filer represents by signature that they do not know of any material adverse information about the issuer that has not been publicly disclosed.

Who previously sold OUST shares and what were the proceeds?

The Form 144 lists a prior sale by Megan Chung of 2,828 shares on 06/12/2025 for gross proceeds of $53,066.29.