UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549

SECURITIESFORM AND EXCHANGE COMMISSION8-K

Washington,CURRENT D.C.REPORT 20549Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

~~FORM~~July 8-K, 2026 Date of Report (Date of Earliest Event Reported)

~~CURRENT~~Central ~~REPORT Pursuant~~Index toKey ~~Section~~Number 13of orthe issuing ~~15(d)~~entity: 0002077702 of BBCMS ~~the~~Mortgage ~~Securities~~Trust ~~Exchange~~2025-5C37 (Exact ~~Act~~name of ~~1934~~issuing entity)

~~Date~~Central Index Key Number of ~~Report~~the registrant: 0001541480 ~~September~~ Barclays ~~29,~~Commercial ~~2025~~Mortgage Securities LLC (~~Date~~Exact name of ~~earliest~~registrant ~~event~~as ~~reported~~specified in its charter)

~~BBCMS~~Central ~~Mortgage~~Index ~~Trust~~Key ~~2025-5C37~~Number of the sponsor: 0001549574 Barclays Capital Real Estate Inc. (~~Central~~Exact ~~Index~~name ~~Key~~of ~~Number~~sponsor ~~0002077702~~as specified in its charter)

Central Index Key Number of the sponsor: 0002058685 3650 Capital SCF LOE I(A), LLC (Exact name of ~~issuing~~sponsor ~~entity~~as specified in its charter)

~~Barclays~~Central ~~Capital~~Index Key Number of the sponsor: 0001701238 Citi Real Estate Funding Inc. (~~Central~~Exact ~~Index~~name ~~Key~~of ~~Number~~sponsor ~~0001549574~~as specified in its charter)

Central Index Key Number of the sponsor: 0001541502 Goldman Sachs Mortgage Company (Exact name of sponsor as specified in its charter)

~~3650~~Central ~~Capital~~Index ~~SCF~~Key ~~LOE~~Number ~~I(A),~~of ~~LLC~~the ~~(Central~~sponsor: 0000927971 ~~Index~~ Bank ~~Key~~of ~~Number 0002058685)~~Montreal (Exact name of sponsor as specified in its charter)

~~Citi~~Central ~~Real~~Index ~~Estate~~Key ~~Funding~~Number ~~Inc.~~of the sponsor: 0001755531 Societe Generale Financial Corporation (Exact name of sponsor as specified in its charter)

(Central Index Key Number ~~0001701238~~of the sponsor: 0001722518 BSPRT CMBS Finance, LLC (Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001685185 UBS AG New York Branch (Exact name of sponsor as specified in its charter)

Goldman Sachs Mortgage Company

New York		333-286968-03		38-4361644 38-4361645
(State or other jurisdiction of incorporation of issuing entity)		(Commission File Number of issuing entity)		(I.R.S. Employer Identification Numbers)

~~(Central~~c/o Computershare ~~Index~~Trust ~~Key~~Company, ~~Number~~N.A. 9062 ~~0001541502)~~Old Annapolis Road ~~(Exact~~Columbia, ~~name~~MD 21045 (Address of ~~sponsor~~principal asexecutive ~~specified~~offices inof ~~its~~the ~~charter~~issuing entity) (Zip Code)

~~Bank of Montreal~~ (~~Central Index Key Number 0000927971~~212) ~~(Exact~~526-7000 Registrant's ~~name~~Telephone ofnumber, ~~sponsor~~including asarea ~~specified~~code ~~in its charter)~~

~~Societe~~Former ~~Generale~~name ~~Financial~~or ~~Corporation (Central~~former ~~Index~~address, ~~Key Number 0001755531)~~if ~~(Exact~~changed ~~name~~since oflast ~~sponsor~~report: Not asApplicable ~~specified in its charter)~~

~~BSPRT~~Check ~~CMBS~~the ~~Finance,~~appropriate ~~LLC (Central~~box ~~Index~~below ~~Key~~if ~~Number~~the ~~0001722518)~~Form 8-K filing is intended to ~~(Exact~~simultaneously ~~name~~satisfy the filing obligation of ~~sponsor~~the asregistrant ~~specified~~under inany ~~its~~of ~~charter)~~the following provisions:

~~UBS AG~~☐ Written ~~(Central~~communications ~~Index~~pursuant ~~Key~~to ~~Number~~Rule ~~0001685185) (Exact~~425 ~~name~~under ofthe ~~sponsor~~Securities asAct ~~specified~~(17 inCFR ~~its charter~~230.425)

~~Barclays~~☐ Soliciting material ~~Commercial~~pursuant ~~Mortgage~~to ~~Securities~~Rule ~~LLC (Central~~14a-12 ~~Index~~under ~~Key~~the ~~Number~~Exchange ~~0001541480~~Act (17 CFR 240.14a-12)

~~(Exact~~☐ Pre-commencement communications ~~name~~pursuant ofto ~~registrant~~Rule as14d-2(b) ~~specified~~under inthe ~~its~~Exchange ~~charter~~Act(17 CFR 240.14d-2(b))

Delaware	333-286968-03	27-010880
(State or other jurisdiction of incorporation)	(Commission File No.)	(IRS Employer Identification No.)

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act(17 CFR 240.13e-4(c))

745 Seventh Avenue New York, New York	10019
(Address of principal executive offices)	(Zip Code)

Securities registered pursuant to Section 12(b) of the Act:

~~Registrant’s~~Title ~~telephone~~of ~~number,~~each ~~including~~class ~~area~~Trading ~~code~~ Symbol(~~212~~s) ~~412-4000~~Name of each exchange on which registered

~~Not~~Indicate ~~Applicable~~by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (~~Former~~§230.405 ~~name~~of this chapter) or ~~former~~Rule ~~address,~~12b-2 ifof ~~changed~~the ~~since~~Securities ~~last~~Exchange ~~report~~Act of 1934 (§240.12b-2 of this chapter).

~~Check~~☐ Emerging growth ~~the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:~~company

~~[_]~~☐ If an ~~Written~~emerging ~~communications~~growth ~~pursuant~~company, toindicate ~~Rule~~by ~~425~~check ~~under~~mark if the ~~Securities~~registrant ~~Act~~has elected not to use the extended transition period for complying with any new or revised Financial accounting standards provided pursuant to Section 13(17a) ~~CFR~~of the ~~230~~Exchange Act.~~425)~~

~~[_]~~Item ~~Soliciting~~8.01 ~~material~~Other ~~pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240~~Events.~~14a-12)~~

~~[_]~~The 1000 ~~Pre~~Portside Drive Mortgage Loan, which constituted approximately 1.3% of the asset pool of the issuing entity as of its cut-~~commencement~~off ~~communications~~date, ~~pursuant~~is an asset of the issuing entity and is part of a loan combination that is being serviced and administered under the pooling and servicing agreement, dated as of September 1, 2025, relating to ~~Rule~~the ~~14d~~Benchmark 2025-V17 Mortgage Trust filed as Exhibit 4.1 to the registrant’s Current Report on Form 8-K filed on October 2, 2025 (the “BMARK 2025-V17 PSA”). Pursuant to Section 3.22(b) ~~under~~of the ~~Exchange~~BMARK ~~Act~~2025-V17 PSA, Greystone Servicing Company LLC was removed as special servicer of the 1000 Portside Drive Mortgage Loan and Torchlight Loan Services, LLC (17“Torchlight”), ~~CFR~~a ~~240~~Delaware limited liability company, was appointed as the successor special servicer of the 1000 Portside Drive Mortgage Loan under the BMARK 2025-V17 PSA.~~14d~~ In the interest of transaction management, this Current Report on Form 8-~~2(b))~~K is being filed to record that, effective as of July 8, 2026, the 1000 Portside Drive Mortgage Loan will be specially serviced, if necessary, pursuant to the BMARK 2025-V17 PSA, by Torchlight. Torchlight maintains its principal special servicing office at 90 Park Avenue, 20th Floor, New York, New York 10016 and its telephone number is 212-883-2800.

~~[_] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))~~SIGNATURES

Pursuant to the requirements of the Securities ~~registered~~Exchange ~~pursuant~~Act of 1934, the registrant has duly caused this report to ~~Section~~be ~~12(b)~~signed ofon its behalf by the undersigned ~~Act:~~hereunto duly authorized.

~~Title~~Barclays ofCommercial ~~each~~Mortgage ~~class~~Securities ~~Trading Symbol~~LLC (sDepositor) ~~Name of each exchange on which registered~~

~~Indicate~~/s/ byDaniel ~~check~~Schmidt Daniel ~~mark~~Schmidt, ~~whether~~Authorized the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).Signatory

~~Emerging~~Date: July ~~growth~~8, ~~company [_]~~2026

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 new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. [_]

Item 1.01. Entry into a Material Definitive Agreement.

On September 25, 2025, Barclays Commercial Mortgage Securities LLC (the “Depositor”) caused the issuance of the BBCMS Mortgage Trust 2025-5C37, Commercial Mortgage Pass-Through Certificates, Series 2025-5C37 (the “Certificates”), pursuant to a pooling and servicing agreement, dated and effective as of September 1, 2025 (the “Pooling and Servicing Agreement”), among the Depositor, as depositor, Midland Loan Services, a Division of PNC Bank, National Association, as master servicer, 3650 REIT Loan Servicing 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 represent, in the aggregate, the entire beneficial ownership in BBCMS Mortgage Trust 2025-5C37 (the “Issuing Entity”), a common law trust formed on September 25, 2025 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 30 commercial and/or multifamily mortgage loans (the “Mortgage Loans”).

The Mortgage Loan secured by the mortgaged property identified as “1000 Portside Drive” on Exhibit B to the Pooling and Servicing Agreement (the “1000 Portside Drive Mortgage Loan”), which is an asset of the Issuing Entity, is part of a whole loan (the “1000 Portside Drive Whole Loan”) that also includes two (2) additional pari passu promissory notes which are not assets of the Issuing Entity. Prior to September 29, 2025, the 1000 Portside Drive Whole Loan was being serviced and administered pursuant to the Pooling and Servicing Agreement.

As of September 29, 2025, the 1000 Portside Drive Whole Loan is being serviced and administered pursuant to a pooling and servicing agreement, dated as of September 1, 2025 (the “Benchmark 2025-V17 Pooling and Servicing Agreement”), among Deutsche Mortgage & Asset Receiving Corporation, as depositor, Trimont LLC, as master servicer, Greystone Servicing Company LLC, as special servicer, Park Bridge Lender Services LLC, as operating advisor and as asset representations reviewer, Computershare Trust Company, National Association, as certificate administrator, and Computershare Trust Company, National Association, as trustee.

The servicing terms of the Benchmark 2025-V17 Pooling and Servicing Agreement applicable to the servicing of the 1000 Portside Drive Mortgage Loan are substantially similar to the terms and conditions of the Pooling and Servicing Agreement applicable to the servicing of the other Mortgage Loans, but will differ in certain respects, as described under “Pooling and Servicing Agreement—Servicing of the Non-Serviced Mortgage Loans” in the Prospectus filed by the Issuing Entity pursuant to Rule 424(b)(2) with respect to the Certificates on September 9, 2025 (the “Prospectus”). The Benchmark 2025-V17 Pooling and Servicing Agreement is attached hereto as Exhibit 4.1.

Item 9.01. Financial Statements, Pro Forma Financial Information and Exhibits.

(d)	Exhibits
Exhibit No.	Description
Exhibit 4.1	Pooling and Servicing Agreement, dated as of September 1, 2025, between Deutsche Mortgage & Asset Receiving Corporation, as depositor, Trimont LLC, as master servicer, Greystone Servicing Company LLC, as special servicer, Computershare Trust Company, National Association, as trustee, certificate administrator, paying agent and custodian, and Park Bridge Lender Services LLC, as operating advisor and asset representations reviewer.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Date: October 2, 2025	BARCLAYS COMMERCIAL MORTGAGE
	SECURITIES LLC
	(Registrant)
	By:	/s/ Daniel Schmidt
		Name:	Daniel Schmidt
		Title:	Chief Executive Officer

Filing Compare · BBCMS Mortgage Trust 2025-5C37