Ouster Inc — Current Report (Form 8-K)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 2, 2026

Ouster, Inc.

(Exact name of registrant as specified in its charter)

350 Treat Avenue

San Francisco, California 94110

(Address of principal executive offices, including Zip Code)

(415) 949-0108

(Registrant’s telephone number, including area code)

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01 Other Events.

On July 2, 2026, Ouster, Inc. (the “Company”) entered into an underwriting agreement (the “Underwriting Agreement”) with Northland Securities, Inc. as underwriter (the “Underwriter”), pursuant to which the Company agreed to issue and sell an aggregate of 3,621,876 shares (the “Firm Shares”) of its common stock, par value $0.0001 per share (“Common Stock”) to the Underwriter (the “Offering”). Additionally, under the terms of the Underwriting Agreement, the Company granted the Underwriter a 30-day option, solely for the purpose of covering over-allotments, if any, to purchase up to an additional 543,281 shares of Common Stock (the “Optional Shares,” and together with the Firm Shares, the “Shares”). The price to the public in the Offering was $55.22 per share.

The Offering was made under a prospectus supplement and related prospectus filed with the Securities and Exchange Commission pursuant to the Company’s effective shelf registration statement on Form S-3 (Registration No. 333-297220).

On July 6, 2026, the Company completed the sale and issuance of an aggregate of 3,621,876 shares of Common Stock. The Company received net proceeds of approximately $191.9 million, after deducting the Underwriter’s discounts and commissions.

The Underwriting Agreement contains customary representations, warranties, covenants and agreements by the Company, customary conditions to closing, indemnification obligations of the Company and the Underwriter, including for liabilities under the Securities Act of 1933, as amended, other obligations of the parties and termination provisions. The representations, warranties and covenants contained in the Underwriting Agreement were made only for purposes of such agreement and as of specific dates, were solely for the benefit of the parties to such agreement, and may be subject to limitations agreed upon by the contracting parties. The Company and the Company’s directors and executive officers also agreed not to sell or transfer any Common Stock for 60 days after July 2, 2026, without first obtaining the written consent of the Underwriter, subject to certain exceptions as described in the prospectus supplement.

A copy of the Underwriting Agreement, including the form of lock-up agreement, is attached as Exhibit 1.1 hereto and is incorporated herein by reference. The foregoing descriptions of the Underwriting Agreement and lock-up agreements are not complete descriptions thereof, and are qualified in their entirety by reference to such exhibit.

A copy of the opinion of Latham & Watkins LLP relating to the validity of the securities issued in the Offering is filed herewith as Exhibit 5.1.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.