GoPro, Inc. This prospectus supplement updates, amends and supplements the prospectus dated June 3, 2026 (assupplemented, the “Prospectus”), which forms a part of our Registration Statement on Form S-1 (Registration No. 333-294507). Capitalized terms used in this Prospectus Supplement and not otherwise defined herein have the meaningsspecified in the Prospectus. This Prospectus Supplement updates, amends and supplements the information in the Prospectus with theinformation contained in our Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission onAugust 10, 2026 (the “Quarterly Report”). Accordingly, we have attached the Quarterly Report to this ProspectusSupplement. You should read this Prospectus Supplement in conjunction with the Prospectus, including any amendments andsupplements thereto. This Prospectus Supplement is qualified by reference to the Prospectus, except to the extent thatthe information contained in this Prospectus Supplement supersedes the information contained in the Prospectus. ThisProspectus Supplement is not complete without, and may not be utilized except in connection with, the Prospectus. Investing in our securities involves significant risks. See “Risk Factors” beginning on page 4 of theProspectus, and under similar headings in any further amendments or supplements to the Prospectus, to readabout factors you should consider before investing in our securities. Neither the SEC nor any state securities commission has approved or disapproved of these securities ordetermined if the Prospectus or this prospectus supplement is truthful or complete. Any representation to thecontrary is a criminal offense. The date of this prospectus supplement is August 10, 2026. UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWASHINGTON, D.C. 20549FORM 10-Q ☑QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2026OR☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period from ________________ to ________________ GOPRO, INC. (Exact name of registrant as specified in its charter) 77-0629474 Delaware (I.R.S. Employer Identification No.) 94402 (Zip Code) (650) 332-7600 (Registrant’s telephone number, including area code)Securities registered pursuant to Section 12(b) of the Act: Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filingrequirements for the past 90 days.YesNo☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 ofRegulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit suchfiles).YesNo☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or anemerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growthcompany” in Rule 12b-2 of the Exchange Act. Large accelerated filer☐Non-accelerated filer☐ Accelerated filerSmaller reporting companyEmerging 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 newor revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes☐No☑ As of August 7, 2026, 158,245,863 and 26,258,546 shares of Class A and Class B common stock were outstanding, respectively. GoPro, Inc. Index PART I. FINANCIAL INFORMATION Financial Statements (unaudited)Condensed Consolidated Balance SheetsCondensed Consolidated Statements of OperationsCondensed Consolidated Statements of Cash FlowsCondensed Consolidated Statements of Stockholders’ Equity (Deficit)Notes to Condensed Consolidated Financial StatementsManagement’s Discussion and Analysis of Financial Condition and Results of OperationsQuantitative and Qualitative Disclosures About Market RiskControls and Procedures Item 1. PART II. OTHER INFORMATION Item 1.Item 1A.Item 2.Item 3.Item 4.Item 5.Item 6. Legal Proceedings64Risk Factors64Unregistered Sales of Equity Securities, Use of Proceeds, and Issuer Purchases of Equity Securities71Defaults Upon Senior Securities72Mine Safety Disclosures72Other Information72Exhibits73Signatures74 Special note regarding forward-looking statements This Quarterly Report on Form 10-Q of GoPro, Inc. (GoPro or we or the Company) includes forward-looki