BBCMS Mortgage Trust 2026-M1

Item 8.01. Other Events. On September 17, 2026, Barclays Capital Inc. (“Barclays”), SG Americas Securities, LLC (“SGAS”), BMO Capital Markets Corp. (“BMO Capital Markets”), Goldman Sachs & Co. LLC (“GS&Co. ”), Citigroup Global Markets Inc. (“CGMI”), Academy Securities, Inc. (“Academy”) and Drexel Hamilton, LLC (“Drexel” and, together in such capacity with Barclays, SGAS, BMO Capital Markets, GS&Co., CGMI and Academy, the “Underwriters”) entered into an agreement with Barclays Commercial Mortgage Securities LLC (the “Registrant”) and Barclays Capital Real Estate Inc. (“BCREI”), dated as of September 17, 2026 (the “Underwriting Agreement”), an executed version of which is attached hereto as Exhibit 1.1, with respect to the sale of the Public Certificates (as defined below) scheduled to occur on September 30, 2026 (the “Closing Date”). The Public Certificates will have an aggregate initial principal amount of $548,273,000. The Registrant also entered into an agreement to sell the Private Certificates, having an aggregate initial principal amount of $105,406,600, to Barclays, SGAS, BMO Capital Markets, GS&Co., CGMI, Academy and Drexel (collectively in such capacity, the “Initial Purchasers”), pursuant to a certificate purchase agreement, dated as of September 17, 2026 (the “Certificate Purchase Agreement”), among the Registrant, BCREI and the Initial Purchasers. The Private Certificates will be sold in a transaction exempt from registration under the Securities Act of 1933, as amended, pursuant to Section 4(a)(2) of the Act. On the Closing Date, Barclays Commercial Mortgage Securities LLC (the “Depositor”) will cause the issuance of the BBCMS Mortgage Trust 2026-M1, Commercial Mortgage Pass-Through Certificates, Series 2026-M1 (the “Certificates”), pursuant to a pooling and servicing agreement, dated and effective as of September 1, 2026, an executed version of which is attached hereto as Exhibit 4.1 (the “Pooling and Servicing Agreement”), among the Registrant, Midland Loan Services, a Division of PNC Bank, National Association, as master servicer, CWCapital Asset Management LLC, as special servicer, Computershare Trust Company, National Association, as certificate administrator and as trustee, and Pentalpha Surveillance LLC, as operating advisor and as asset representations reviewer. The Certificates will consist of the following classes, designated as (i) Class A-2, Class A-3, Class X-A, Class A-S and Class B Certificates (collectively, the “Public Certificates”) and (ii) Class C, Class D, Class E, Class F, Class G-RR, Class J-RR, Class K-RR, Class L-RR and Class R Certificates (the “Private Certificates”). Several Mortgage Loans that are among the assets of the Issuing Entity are part of a Whole Loan. Each Whole Loan is governed by a co-lender, intercreditor or similar agreement (each, an “Intercreditor Agreement”) between the holders of the promissory notes comprising such Whole Loan, the terms of which are described under “Description of the Mortgage Pool - The Whole Loans” in the Prospectus described below. Each Intercreditor Agreement is attached as an exhibit hereto as described in the following table. Moreover, certain of such Whole Loans will not be serviced pursuant to the Pooling and Servicing Agreement but will instead be serviced pursuant to a different servicing agreement (each, a “Non-Serviced PSA”). Each such Non-Serviced PSA is attached as an exhibit hereto as described in the following table. For a description of the servicing of the affected Whole Loans under such Non-Serviced PSAs, see “Pooling and Servicing Agreement - Servicing of the Non-Serviced Mortgage Loans” in the Prospectus described below. Name of Mortgage Loan Intercreditor Agreement Non-Serviced PSA (if any) ───────────────────────────────────────────────────────────────────────────────────── Franklin 8 Pack 4.4 N/A Wescott Apartments 4.5 N/A(1) Edison Grand 4.6 4.2 1351 Jerome Avenue 4.7 N/A The Landing 4.8 4.3 Summit Orange Crossing 4.9 N/A(1) (1) The subject Whole Loan will be serviced under the Pooling and Servicing Agreement until the securitization of the applicable controlling pari passu companion loan, after which the subject Whole Loan will be serviced pursuant to the pooling and servicing agreement for such securitization. That pooling and servicing agreement will be identified and filed on a Form 8-K following such securitization. The Certificates represent, in the aggregate, the entire beneficial ownership in BBCMS Mortgage Trust 2026-M1 (the “Issuing Entity”), a common law trust fund to be formed on September 30, 2026 under the laws of the State of New York pursuant to the Pooling and Servicing Agreement. The assets of the Issuing Entity consist primarily of thirty-seven multifamily and/or manufactured housing community mortgage loans (the “Mortgage Loans”). The Mortgage Loans will be acquired by the Registrant from (i) Barclays Capital Real Estate Inc. (“BCREI”) pursuant to a Mortgage Loan Purchase Agreement, attached hereto as