OUST insider sale: 15,689 shares for $367,637

Mark Frichtl reported a proposed sale and a recent sale of common shares of OUST.

Accepted by SEC EDGAR 03/25/2026 - 04:24 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Mark Frichtl reported a proposed sale and a recent sale of common shares of OUST. The filing lists a sale of $367,637.20 for 15,689 shares on 03/12/2026. It also lists an intended exercise of stock options to acquire up to 40,000 shares for cash on 03/25/2026, with transactions shown on NASDAQ.

Insights

Securities Counsel

Routine insider sale notice and planned option exercise; primarily reporting compliance.

The excerpt shows a reported sale by Mark Frichtl of 15,689 common shares for $367,637.20 on 03/12/2026.

The filing also lists an intended exercise of stock options to acquire up to 40,000 shares for cash on 03/25/2026. These items follow standard disclosure practices for officer/director transactions and provide a factual record of recent and planned transactions.

FAQ

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

What did Mark Frichtl report in the Form 144 filing for OUST?

He reported a sale of 15,689 shares for $367,637.20 on 03/12/2026. The filing also lists an intended exercise of options to acquire 40,000 shares on 03/25/2026, with proceeds from a cash exercise.

How many shares is the filing showing for planned option exercise?

The filing lists an exercise to acquire up to 40,000 shares via stock options on 03/25/2026. The method shown for the exercise is cash, indicating payment to the issuer upon exercise.

When was the reported sale transaction executed and for what amount?

The reported sale occurred on 03/12/2026 and involved 15,689 shares for total consideration of $367,637.20. The entry appears as a completed sale in the filing excerpt.

On which market are the securities referenced in the filing listed?

The securities in the excerpt are listed on NASDAQ. The filing associates the reported sales and the planned option exercise with common shares traded on that exchange.

Does the filing specify how the exercised options will be paid?

Yes. The excerpt shows the option exercise listed with a cash payment method for acquisition of up to 40,000 shares on 03/25/2026. This indicates cash will be used to satisfy exercise price.

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

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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	0001847596
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	Ouster, Inc.
SEC File Number	001-39463
Address of Issuer	350 Treat Avenue San Francisco CALIFORNIA 94110
Phone	(415)949-0108
Name of Person for Whose Account the Securities are To Be Sold	MARK FRICHTL
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	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	40000	822800.00	62803991	03/25/2026	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	03/25/2026	Exercise of Stock Options	Issuer			40000	03/25/2026	Cash

* 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
MARK FRICHTL 350 Treat Avenue San Francisco CA 94110	Common	03/12/2026	15689	367637.20

144: Remarks and Signature

Remarks
Date of Notice	03/25/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/15/2025
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/ Mark Frichtl
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)