Ouster (OUST) Rule 144 Notice: 19,168 Shares Proposed Sale on NASDAQ

Rhea-AI Filing Summary

Form 144 notice for Ouster, Inc. (OUST): An individual intends to sell 19,168 shares of Ouster common stock on or about September 12, 2025 through NASDAQ with an aggregate market value of $546,479.68. The securities were acquired as restricted stock awards or restricted stock units granted by the issuer on acquisition dates of 03/28/2024, 03/16/2023, and 08/10/2022, totaling 30,465, 7,000, and 1,294 units respectively. The filer also reported a prior sale on June 12, 2025 of 3,226 shares for gross proceeds of $60,532.99. The signer certifies no undisclosed material adverse information.

Insights

Securities Analyst

TL;DR: Insider sale disclosed; modest size relative to outstanding shares, likely neutral for investors.

The filing reports a proposed insider sale of 19,168 shares valued at $546,480, sourced from restricted stock/RSU grants dated 2022–2024. Compared with 57,819,244 shares outstanding, the proposed sale represents a de minimis portion of float, and prior recent sale of 3,226 shares generated ~$60.5k. There is no indication of material adverse nonpublic information and the notice follows Rule 144 disclosure. From a market-impact perspective this appears routine and not materially dilutive.

Corporate Governance Expert

TL;DR: Disclosure aligns with Rule 144 requirements; governance controls appear observed.

The filer documents the source of shares (restricted awards/RSUs) and affirms absence of undisclosed material information, consistent with compliance expectations. The scheduled sale date and broker (E*TRADE) are identified. The filing also lists a prior sale within three months, demonstrating ongoing disclosure. No evidence in this notice of unusual timing, related-party transactions, or breaches of trading-policy disclosure obligations.

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	19168	546479.68	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			7000	03/16/2023	Services rendered
Common Stock	09/11/2025	Restricted stock units awarded under incentive award plan	Issuer			1294	08/10/2022	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
Darien Spencer 350 Treat Avenue San Francisco CA 94110	Common Stock	06/12/2025	3226	60532.99

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 the Form 144 for OUST disclose about the planned sale?

The filer intends to sell 19,168 shares of Ouster common stock on or about 09/12/2025 via NASDAQ for an aggregate market value of $546,479.68.

How were the shares being sold acquired according to the filing?

The shares were acquired as restricted stock awards or restricted stock units granted by the issuer on 03/28/2024, 03/16/2023, and 08/10/2022.

Has the filer sold any OUST shares recently?

Yes, the filing reports a prior sale on 06/12/2025 of 3,226 shares for gross proceeds of $60,532.99.

Which broker is handling the proposed sale?

The broker named in the filing is E*TRADE Financial Corporation located at 3 Edison Drive, Alpharetta, GA.

Does the filing state whether there is any undisclosed material information?

Yes. By signing the notice, the person represents they do not know of any material adverse information about the issuer that has not been publicly disclosed.