Turtle Beach Corp

The Company is providing the following disclosure in lieu of a Current Report on Form 8-K under Item 5.03. On November 2, 2026, the Company filed two Certificates of Withdrawal of Certificate of Designation with the Secretary of State of the State of Nevada (the “Certificates of Withdrawal”). The Certificates of Withdrawal withdrew the Certificates of Designation of Series A Junior Participating Preferred Stock of the Company (the “Series A Preferred Stock”) and Series B Junior Participating Preferred Stock of the Company (the “Series B Preferred Stock”), which were designated in connection with the Company's Rights Agreement dated March 28, 2023, which terminated on June 15, 2023, and its Rights Agreement dated June 9, 2025, which expired on June 9, 2026. No shares of Series A Preferred Stock or Series B Preferred Stock were issued or outstanding at the time of the filing of the Certificates of Withdrawal. Copies of the Certificates of Withdrawal are attached as Exhibits 3.4 and 3.5 for the Series A Preferred Stock and Series B Preferred Stock, respectively, and incorporated herein by reference.

None of our directors or executive officers adopted orterminated a “Rule 10b5-1 trading arrangement”, or a “non-Rule 10b5-1 trading

arrangement” (as each term is defined in Item 408(a) of Regulation S-K) during the three months ended September 30, 2026.