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

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

~~August~~March 292, ~~2025~~2026 Date of Report (Date of Earliest Event Reported)

Central Index Key Number of the issuing entity: 0001630513
Wells Fargo Commercial Mortgage Trust 2015-C26
(Exact name of issuing entity)

Central Index Key Number of the registrant: 0000850779
Wells Fargo Commercial Mortgage Securities, Inc.
(Exact name of registrant as specified in its charter)

Central Index Key Number of the sponsor: 0000740906
Wells Fargo Bank, National Association
(Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001541214
C-III Commercial Mortgage LLC
(Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001542105
Basis Real Estate Capital II, LLC
(Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001555501
Liberty Island Group I LLC
(Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001592182
LMF Commercial, LLC (formerly known as Rialto Mortgage Finance, LLC)
(Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001624053
Argentic Real Estate Finance LLC (formerly known as Silverpeak Real Estate Finance LLC)
(Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001617874
Walker & Dunlop Commercial Property Funding I WF, LLC
(Exact name of sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001577313
National Cooperative Bank, N.A.
(Exact name of sponsor as specified in its charter)

New York		333-195164-04		38-3952049 38-3952050 38-3952051 38-7127884
(State or other jurisdiction of incorporation of issuing entity)		(Commission File Number of issuing entity)		(I.R.S. Employer Identification Numbers)

c/o Computershare Trust Company, N.A., as agent for
Wells Fargo Bank, National Association
9062 Old Annapolis Road
Columbia, MD 21045
(Address of principal executive offices of the issuing entity) (Zip Code)

(212) 214-5600
Registrant's Telephone number, including area code

Former name or former address, if changed since last report: Not Applicable

Check 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:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act(17 CFR 240.14d-2(b))

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

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

Title of each class	Trading Symbol(s)	Name of each exchange on which registered

Indicate by check mark whether 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).

☐ Emerging growth company

☐ 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 6.0204 ~~Change~~Failure ofto ~~Servicer~~Make ora ~~Trustee~~Required Distribution.

~~Pursuant~~The Certificate toAdministrator ~~Section~~made ~~6.05(b)~~distributions ofto the ~~pooling~~Certificateholders ~~and~~on the ~~servicing~~February ~~agreement~~18, ~~dated~~2026 asDistribution ofDate. The ~~February~~Certificate 1,Administrator ~~2015 (the “Pooling and~~was ~~Servicing~~subsequently ~~Agreement”),~~notified ~~among~~by ~~Wells~~the ~~Fargo~~Master ~~Commercial~~Servicer ~~Mortgage Securities,~~on ~~Inc.,~~March ~~as depositor~~2, ~~Trimont~~2026 ~~LLC,~~of asa ~~successor~~payment revision to ~~Wells~~the ~~Fargo~~Class ~~Bank~~D, ~~National~~ ~~Association~~Class E, asClass ~~general~~F ~~master~~and ~~servicer,~~Class ~~Midland~~G ~~Loan Services, a~~Certificateholders. ~~Division~~The ofpayment ~~PNC~~revision ~~Bank,~~was ~~National~~due ~~Association~~to ~~(“Midland”),~~the ~~as general~~ special servicer, ~~National~~providing ~~Cooperative Bank, N.A., as NCB master~~updated ~~servicer~~reporting ~~and~~regarding ~~NCB~~the ~~special~~release ~~servicer~~of $55,300,000 ~~Pentalpha~~in ~~Surveillance~~funds ~~LLC,~~previously aswithheld ~~trust~~in ~~advisor,~~relation ~~Computershare~~to ~~Trust~~certain ~~Company,~~litigation ~~National~~matters. This ~~Association,~~resulted ~~acting~~in as an ~~agent~~additional ~~for~~principal ~~Wells~~payment ~~Fargo~~to ~~Bank,~~the ~~National~~Class ~~Association,~~D asCertificateholders ~~certificate~~in ~~administrator,~~an ~~tax administrator~~amount ~~and~~equal ~~custodian~~to $3, ~~and Wilmington Trust~~712.50, ~~National~~an ~~Association,~~additional ~~as trustee,~~interest ~~relating~~payment to the ~~issuing~~Class ~~entity~~D ~~known~~Certificateholders ~~as Wells Fargo Commercial~~in ~~Mortgage~~an ~~Trust~~amount ~~2015-C26~~equal ~~(the~~to ~~“Issuing Entity”)~~$118, ~~effective as of August 29~~790.27, ~~2025,~~an ~~Midland~~additional ~~was~~interest ~~removed~~payment asto ~~general~~the ~~special~~Class ~~servicer and~~E ~~Torchlight~~Certificateholders ~~Loan~~in ~~Services,~~an ~~LLC~~amount ~~(“Torchlight”),~~equal ato ~~Delaware limited liability company~~$19,356,149.13, ~~was~~an ~~appointed~~additional ~~as the successor general special~~interest ~~servicer~~payment ~~(except with respect~~ to ~~any~~the ~~Non-Serviced~~Class ~~Loan~~F ~~Combination~~Certificateholders ~~and~~in ~~any~~an ~~NCB Mortgage~~amount ~~Loan).~~equal Into ~~its capacity as general special servicer~~$9, ~~Torchlight will be~~672,108.34 ~~responsible for the servicing~~ and ~~administration~~an ofadditional ~~the~~interest ~~Specially~~payment ~~Serviced Mortgage Loans and REO Properties pursuant~~ to the ~~Pooling~~Class ~~and~~G ~~Servicing Agreement~~Certificateholders ~~(except~~in ~~with~~an amount ~~respect~~equal to ~~any~~$25,149,239.76. The ~~Non-Serviced~~additional ~~Loan~~payments ~~Combination~~were ~~and~~made ~~any~~to ~~NCB~~the ~~Mortgage~~impacted ~~Loan),~~Certificateholders aon ~~copy~~March of3, ~~which~~2026. An ~~was~~additional ~~filed as Exhibit 4.~~$1,000,000 ~~to the Current Report~~is onbeing ~~Form~~withheld ~~8-K/A~~from ~~filed by~~ the ~~Issuing~~released ~~Entity~~funds ~~with~~by the ~~Securities~~Certificate ~~and~~Administrator ~~Exchange~~for ~~Commission~~anticipated onfuture ~~February~~litigation ~~25, 2015~~expenses.

~~Capitalized terms used, but not defined, in this Current Report on Form~~SIGNATURES ~~8‑K have the meanings set forth in the Pooling and Servicing Agreement.~~

~~Torchlight~~Pursuant ~~Loan Services~~to the requirements of the Securities Exchange Act of 1934, ~~LLC~~the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

~~Torchlight is~~Wells aFargo ~~Delaware~~Commercial ~~limited~~Mortgage ~~liability~~Securities, ~~company and will act as general special~~Inc. ~~servicer under the Pooling and Servicing Agreement~~ (~~the “General Special Servicer”~~Depositor)~~. Its~~ executive office and principal special servicing office are located at 90 Park Avenue, 20th Floor, New York, New York 10016. Torchlight is wholly owned by Torchlight Investors, LLC, which invests across a broad array of commercial real estate investments, including senior and mezzanine loans, preferred equity, equity and investment grade and non-investment grade CMBS on behalf of institutional investors.

~~Torchlight~~/s/ ~~has~~Anthony ~~substantial experience in working out loans and has been engaged in servicing CMBS assets since December 2007~~J. ~~Torchlight’s~~ ~~then affiliated predecessor had been engaged in servicing~~Sfarra ~~CMBS~~Anthony ~~assets since 1998~~J. ~~In the past twenty-six years~~Sfarra, ~~Torchlight has resolved over $11.8 billion of U.S. commercial and multifamily loans.~~President

~~The table~~Date: March ~~below~~5, ~~sets forth information about Torchlight’s portfolio of specially serviced commercial and multifamily mortgage loans as of the dates indicated:~~2026

CMBS Pools	As of 12/31/2022	As of 12/31/2023	As of 12/31/2024	As of 6/30/2025
By Approximate Number.......................	17	19	18	30
Named Specially Serviced Portfolio By
Approximate Aggregate Unpaid Principal Balance(1)	$6,677,010,984	$8,187,369,702	$9,980,161,249	$15,418,121,278
Actively Specially Serviced Portfolio By Approximate Number of Loans(2).............	11	41	42	49
Actively Specially Serviced Portfolio By
Approximate Aggregate Unpaid Principal Balance(2)..................................................................	$ 461,535,412	$ 2,555,583,096	$2,756,939,609	$3,105,933,376

(1) Includes all loans in Torchlight’s portfolio for which Torchlight is the named special servicer, regardless of whether such loans are, as of the specified date, specially serviced loans.

(2) Includes only those loans in the portfolio that, as of the specified date, are specially serviced loans, including REO loans.

As of June 30, 2025, 21 personnel were involved in the special servicing of commercial real estate assets for Torchlight, of which 4 were dedicated to the special servicing business unit. As of June 30, 2025, Torchlight specially serviced a portfolio that included approximately 49 loans secured by properties throughout the United States, the District of Columbia and Puerto Rico with a then-current face value in excess of $3.1 billion, all of which are commercial or multifamily real estate assets. The portfolio includes commercial real estate mortgage loans secured by the same types of income producing properties as those securing the Mortgage Loans backing the Certificates. Accordingly, the assets that Torchlight services as well as assets owned by its affiliates may, depending upon the particular circumstances, including the nature and location of such assets, compete with the mortgaged real properties securing the Mortgage Loans for tenants, purchasers, financing and so forth. Torchlight does not service or manage any assets other than commercial and multifamily real estate assets.

Torchlight has developed policies and procedures for the performance of its special servicing obligations in compliance with applicable servicing criteria set forth in Item 1122 of Regulation AB, including managing delinquent loans and loans subject to the bankruptcy of the borrower. Torchlight has recognized that technology can greatly improve its performance as a special servicer, and Torchlight’s intranet-based infrastructure provides improved controls for compliance with trust/pooling and servicing agreements, loan administration and procedures in workout/resolution. Standardization and automation have been pursued, and continue to be pursued, wherever practicable to provide for improved accuracy, efficiency, transparency, monitoring and controls. Torchlight’s Special Servicing Policies and Procedures Manual (the “Manual”) is reviewed annually, or more frequently if necessary, and updates to the Manual are made in conjunction with such reviews where applicable. Material changes to the Manual were made in 2018 to fully incorporate the rollout of Backshop. More recent updates to the Manual were completed in the last three years to incorporate updates to policies related to REO Bank Accounts (including the implementation of ACH positive pay and additional security protocols for wire transfers) and annual compliance.

Torchlight utilizes the services of certain contractors to augment its personnel. Such contractors are included in the personnel numbers above. Torchlight does not have any material primary advancing obligations with respect to the CMBS pools as to which it acts as special servicer and accordingly Torchlight does not believe that its financial condition will have any adverse effect on the performance of its duties under the Pooling and Servicing Agreement nor any material impact on the mortgage pool performance or the performance of the certificates.

Torchlight will not have primary responsibility for custody services of original documents evidencing the Mortgage Loans. On occasion, Torchlight may have custody of certain of such documents as necessary for enforcement actions involving the Mortgage Loans or otherwise. To the extent that Torchlight has custody of any such documents, such documents will be maintained in a manner consistent with the Servicing Standard.

There are currently no legal proceedings pending against Torchlight, nor are any known to be contemplated by governmental authorities, that are material to the Certificateholders. From time to time, Torchlight and its affiliates are parties to lawsuits and other legal proceedings arising in the ordinary course of business. Torchlight does not believe that any such lawsuits or legal proceedings would, individually or in the aggregate, have a material adverse effect on its business or its ability to serve as General Special Servicer.

No securitization transaction involving commercial or multifamily mortgage loans in which Torchlight was acting as special servicer has experienced an event of default as a result of any action or inaction performed by Torchlight as special servicer. In addition, there has been no previous disclosure of material non-compliance with servicing criteria by Torchlight with respect to any other securitization transaction involving commercial or multifamily mortgage loans in which Torchlight was acting as special servicer.

Torchlight is not an affiliate of the Depositor, the Mortgage Loan Sellers, the Issuing Entity, the General Master Servicer, the NCB Master Servicer, the NCB Special Servicer the Trustee, the Certificate Administrator, the Trust Advisor or any originator of the Mortgage Loans. There are no specific relationships involving or relating to this transaction or the securitized mortgage loans between Torchlight or any of its affiliates, on the one hand, and the Depositor or the Issuing Entity, on the other hand, that currently exist or that existed during the past two (2) years.

Neither Torchlight nor any of its affiliates currently owns any Certificates issued by the issuing entity or any other economic interest in this securitization. Torchlight or its affiliates may, in the future, retain or own interests in certain classes of certificates. Any such party will have the right to dispose of such certificates at any time.

A description of additional material terms of the Pooling and Servicing Agreement regarding the role of the General Special Servicer, including limitations on the General Special Servicer’s liability under the Pooling and Servicing Agreement and terms regarding the General Special Servicer’s removal, replacement, resignation or transfer, is included in the prospectus supplement and filed with the Securities and Exchange Commission.

Torchlight may enter into one or more arrangements with the Subordinate Class Representative or any person with the right to appoint or remove and replace the General Special Servicer to provide for a discount and/or revenue sharing with respect to certain of the General Special Servicer compensation in consideration of, among other things, Torchlight’s appointment as General Special Servicer under the Pooling and Servicing Agreement and any related intercreditor agreement and limitations on such person’s right to replace the General Special Servicer.

The Depositor, the Mortgage Loan Sellers, the Borrowers, the guarantors, the General Master Servicer, the NCB Master Servicer, the NCB Special Servicer, the Trustee and the Certificate Administrator may maintain banking and other commercial relationships with Torchlight and its affiliates.

The foregoing information set forth under this heading “—Torchlight Loan Services, LLC” has been provided by Torchlight.

SIGNATURES

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

Wells Fargo Commercial Mortgage Securities, Inc. (Depositor)

/s/ Anthony J. Sfarra Anthony J. Sfarra, President

Date: August 29, 2025

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

FORM 8-K

CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

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

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Filing Compare · Wells Fargo Commercial Mortgage Trust 2015-C26