[144] Ouster, Inc. SEC Filing

Rhea-AI Filing Summary

OUST (Etrade Financial Corporation) filing a Form 144 notice for proposed sales of Common Stock by an affiliate. The filing lists restricted stock units awarded on 03/11/2026 and earlier award dates, and discloses prior sales by Megan Chung of $158,999.88 for 5,837 shares on 01/16/2026 and $267,165.76 for 10,696 shares on 12/12/2025.

Insights

Securities Compliance Attorney

Form 144 notifies the market of proposed affiliate sales under Rule 144.

The notice lists proposed sales of Common Stock tied to restricted stock units awarded on 03/11/2026 and earlier award dates; it also records completed sales by Megan Chung on 12/12/2025 and 01/16/2026 with the disclosed share counts and proceeds.

These filings are administrative disclosures required before public sales by affiliates; cash‑flow treatment and exact proposed sale amounts are not specified in the excerpt.

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	10958	225186.90	62803991	03/12/2026	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 Stock	03/11/2026	Restricted stock units awarded under incentive award plan	Issuer			13333	03/21/2025	Services rendered
Common Stock	03/11/2026	Restricted stock units awarded under incentive award plan	Issuer			4500	03/16/2023	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	01/16/2026	5837	158999.88
Megan Chung 350 Treat Avenue San Francisco CA 94110	Common Stock	12/12/2025	10696	267165.76

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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)