Material Agreement Form 8 K

Item 1.01. Entry Into a Material Definitive Agreement.

On August 16, 2024, Gladstone Capital Corporation (the "Company") entered into an Equity Distribution Agreement, dated August 16, 2024 (the "Sales Agreement"), by and among the Company, Gladstone Management Corporation, Gladstone Administration, LLC and Jefferies LLC and Huntington Securities, Inc., as sales agents (together, the "Sales Agents"), providing for the issuance of up to an aggregate of $150 million of the Company's common stock, par value $0.001 per share (the "Shares"). In connection with the signing of the Sales Agreement, the Company, Gladstone Management Corporation, Gladstone Administration, LLC and the Sales Agents terminated the Amended and Restated Equity Distribution, dated July 28, 2023. The Shares will be offered pursuant to the Company's registration statement on Form N-2(File No. 333-275934)declared effective by the Securities and Exchange Commission on January 17, 2024 and the base prospectus dated January 17, 2024 and prospectus supplement dated August 16, 2024. Subject to the terms of the Sales Agreement, the Sales Agents are not required to sell any specific number or dollar amount of securities but will act as the Company's sales agents using commercially reasonable efforts consistent with their normal trading and sales practices, on mutually agreed terms between the Sales Agents and the Company.

The Sales Agents will be entitled to compensation under the terms of the Sales Agreement at a commission of up to 2.0% of the gross sales price per Share sold pursuant to the Sales Agreement. In connection with the sale of Shares on the Company's behalf, the Sales Agents will be deemed to be "underwriters" within the meaning of the Securities Act of 1933, as amended (the "Securities Act"), and the compensation of the Sales Agents will be deemed to be underwriting commissions or discounts. The Company has also agreed to provide indemnification and contribution to the Sales Agents against certain civil liabilities, including liabilities under the Securities Act,

The foregoing description of the Sales Agreement is not complete and is qualified in its entirety by reference to the full text of the Sales Agreement, which is filed as Exhibit 1.1 to this Current Report on Form 8-Kand is incorporated herein by reference.

This Current Report on Form 8-Kshall not constitute an offer to sell or a solicitation of an offer to buy any securities, nor shall there be any sale of these securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or other jurisdiction.

On August 16, 2024, Venable LLP delivered its legality opinion with respect to the Shares to be sold pursuant to the Sales Agreement, which is filed as Exhibit 5.1 to this Current Report on Form 8-K.