Bloomin' Brands, Inc.

Item 1.01 Entry into a Material Definitive Agreement On September 25, 2026, Bloomin’ Brands, Inc. (the “Company”) and its wholly-owned subsidiary, OSI Restaurant Partners, LLC, as co-borrowers (each, a “Borrower” and together, the “Borrowers”), certain lenders and Wells Fargo Bank, National Association, as administrative agent (the “Administrative Agent”), entered into a Fourth Amended and Restated Credit Agreement (the “New Credit Agreement”). The New Credit Agreement amends and restates the Third Amended and Restated Credit Agreement, dated September 19, 2024 (as previously amended, the “Existing Credit Agreement”). The New Credit Agreement extends the maturity date to September 25, 2031. The amount of the revolving credit commitments, terms regarding the potential increase of commitments and interest rate elections and spreads remained substantially unchanged. The New Credit Agreement continues to include a financial covenant requiring that the Borrowers’ Total Net Leverage Ratio not exceed 4.50 to 1.00, and adds a new financial covenant requiring that the Borrowers’ Consolidated Senior Secured Net Leverage Ratio not exceed 3.50 to 1.00 (in each case with a limited ability to temporarily increase such ratios in connection with material acquisitions). The New Credit Agreement also includes other affirmative and negative covenants that are in each case substantially similar to those contained in the Existing Credit Agreement. The New Credit Agreement remains guaranteed by each of the Company’s current and future domestic 100% owned subsidiaries (other than the co-Borrower), subject to certain exceptions (the “Guarantors”), and secured by substantially all owned or later acquired assets of the Borrowers and Guarantors, including a pledge of all the capital stock of substantially all of the Company’s domestic subsidiaries. Certain of the lenders and certain of their affiliates have performed investment banking, commercial lending and advisory services for the Company and its subsidiaries from time to time, for which they have received customary fees and expenses, including in connection with prior credit facilities and prior securities offerings. These parties may, from time to time, engage in transactions with, and perform services for, the Company and its subsidiaries in the ordinary course of their business. The foregoing description of the New Credit Agreement does not purport to be complete and is subject to, and qualified in its entirety by, the full text of the New Credit Agreement that is attached to this Current Report on Form 8-K as Exhibit 10.1 and incorporated herein by reference.

Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant The information set forth under Item 1.01 of this Current Report on Form 8-K is incorporated by reference into this Item 2.03.

Item 7.01 Regulation FD Disclosure On September 29, 2026, the Company issued a press release announcing the New Credit Agreement. A copy of the press release is furnished as Exhibit 99.1 hereto. The information contained in this Item 7.01, including Exhibit 99.1 attached hereto, is being furnished and shall not be deemed “filed” for any purpose, and shall not be deemed incorporated by reference in any document whether or not filed under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in any such document.