UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2025

or

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _____ to _____

Commission file number of the issuing entity: 333-206677-15

Central Index Key Number of the issuing entity: 0001698685

BANK 2017-BNK4

(exact name of the issuing entity as specified in its charter)

Central Index Key Number of the depositor: 0000850779

Wells Fargo Commercial Mortgage Securities, Inc.

(exact name of the depositor as specified in its charter)

Central Index Key Number of the sponsor: 0000740906

Wells Fargo Bank, National Association

(exact name of the sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001102113

Bank of America, National Association

(exact name of the sponsor as specified in its charter)

Central Index Key Number of the sponsor: 0001541557

Morgan Stanley Mortgage Capital Holdings LLC

(exact name of the sponsor as specified in its charter)

New York
(State or other jurisdiction of
incorporation or organization of

the issuing entity)

38-4032075

38-4032076

38-7170551

(I.R.S. Employer

Identification Numbers)

c/o Computershare Trust Company, National Association, as agent for

Wells Fargo Bank, National Association

as Certificate Administrator

9062 Old Annapolis Road

Columbia, MD

(Address of principal executive offices of the issuing entity)

21045

(Zip Code)

Registrant’s telephone number, including area code:

(704) 374-6161

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

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
None

Securities registered pursuant to Section 12(g) of the Act: None.

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. o Yes ⌧ No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. o Yes ⌧ No

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. ⌧ Yes o No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (Section 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Not applicable.

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer o Accelerated filer o

Non-accelerated filer ⌧ Smaller reporting company o

Emerging growth company o

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. o

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. o

If securities are registered pursuant to Section 12(b) of the Act, indicate by check mark whether the financial statements of the registrant included in the filing reflect the correction of an error to previously issued financial statements. o

Indicate by check mark whether any of those error corrections are restatements that required a recovery analysis of incentive-based compensation received by any of the registrant’s executive officers during the relevant recovery period pursuant to §240.10D-1(b). o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). o Yes ⌧ No

State the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant’s most recently completed second fiscal quarter.

Not applicable.

Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Section 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court. o Yes o No

Not applicable.

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date.

Not applicable.

DOCUMENTS INCORPORATED BY REFERENCE

List hereunder the following documents if incorporated by reference and the Part of the Form 10-K (e.g., Part I, Part II, etc.) into which the document is incorporated: (1) Any annual report to security holders; (2) Any proxy or information statement; and (3) Any prospectus filed pursuant to Rule 424(b) or (c) under the Securities Act of 1933. The listed documents should be clearly described for identification purposes (e.g., annual report to security holders for fiscal year ended December 24, 1980).

Not applicable.

EXPLANATORY NOTES

The D.C. Office Portfolio Mortgage Loan, the One West 34th Street Mortgage Loan, the American Greetings HQ Mortgage Loan and the Ralph’s Food Warehouse Portfolio Mortgage Loan, which constituted approximately 6.9%, 6.0%, 3.7% and 2.5%, respectively, of the asset pool of the issuing entity as of its cut-off date, are each an asset of the issuing entity and are each part of a loan combination that includes (a) with respect to the D.C. Office Portfolio Mortgage Loan, one other pari passu loan, which is not an asset of the issuing entity, (b) with respect to the One West 34th Street Mortgage Loan, two other pari passu loans, which are not assets of the issuing entity, (c) with respect to the American Greetings HQ Mortgage Loan, two other pari passu loans and one subordinate companion loan, each of which are not assets of the issuing entity and (d) with respect to the Ralph’s Food Warehouse Portfolio Mortgage Loan, one other pari passu loan, which is not an asset of the issuing entity. These loan combinations, including the D.C. Office Portfolio Mortgage Loan, the One West 34th Street Mortgage Loan, the American Greetings HQ Mortgage Loan and the Ralph’s Food Warehouse Portfolio Mortgage Loan, are being serviced and administered pursuant to the Pooling and Servicing Agreement, which is incorporated by reference as Exhibit 4.1 to this Annual Report on Form 10-K.

The Exhibit Index describes exhibits provided by certain parties (in their capacities indicated on the Exhibit Index) with respect to The Summit Birmingham Mortgage Loan, which constituted approximately 6.1% of the asset pool of the issuing entity as of its cut-off date. The Summit Birmingham Mortgage Loan is an asset of the issuing entity and is part of a loan combination that includes The Summit Birmingham Mortgage Loan and three other pari passu loans, which are not assets of the issuing entity. A pari passu portion of the loan combination was securitized in the Bank of America Merrill Lynch Commercial Mortgage Trust 2017-BNK3 transaction, Commission File Number 333-206847-05 (the “BACM 2017-BNK3 Transaction”). This loan combination, including The Summit Birmingham Mortgage Loan, is being serviced and administered pursuant to the pooling and servicing agreement for the BACM 2017-BNK3 Transaction, which is incorporated by reference as Exhibit 4.2 to this Annual Report on Form 10-K. The JW Marriott Desert Springs Mortgage Loan, previously an asset of the issuing entity, was not an asset of the issuing entity during the reporting period and is omitted from this Annual Report on Form 10-K and will be omitted from subsequent Annual Reports on Form 10-K.

The Exhibit Index describes exhibits provided by certain parties (in their capacities indicated on the Exhibit Index) with respect to The Davenport Mortgage Loan, which constituted approximately 5.0% of the asset pool of the issuing entity as of its cut-off date. The Davenport Mortgage Loan is an asset of the issuing entity and is part of a loan combination that includes The Davenport Mortgage Loan and one other pari passu loan, which is not an asset of the issuing entity. The other pari passu portion of the loan combination was securitized in the Wells Fargo Commercial Mortgage Trust 2017-RB1 transaction, Commission File Number 333-206677-14 (the “WFCM 2017-RB1 Transaction”). This loan combination, including The Davenport Mortgage Loan, is being serviced and administered pursuant to the pooling and servicing agreement for the WFCM 2017-RB1 Transaction, which is incorporated by reference as Exhibit 4.3 to this Annual Report on Form 10-K.

The Exhibit Index describes exhibits provided by certain parties (in their capacities indicated on the Exhibit Index) with respect to the Key Center Cleveland Mortgage Loan, which constituted approximately 4.0% of the asset pool of the issuing entity as of its cut-off date. The Key Center Cleveland Mortgage Loan is an asset of the issuing entity and is part of a loan combination that includes the Key Center Cleveland Mortgage Loan and five other pari passu loans, which are not assets of the issuing entity. A pari passu portion of the loan combination was securitized in the Citigroup Commercial Mortgage Trust 2017-P7 transaction, Commission File Number 333-207132-11 (the “CGCMT 2017-P7 Transaction”). This loan combination, including the Key Center Cleveland Mortgage Loan, is being serviced and administered pursuant to the pooling and servicing agreement for the CGCMT 2017-P7 Transaction, which is incorporated by reference as Exhibit 4.4 to this Annual Report on Form 10-K.

The Exhibit Index describes exhibits provided by certain parties (in their capacities indicated on the Exhibit Index) with respect to the Pentagon Center Mortgage Loan, which constituted approximately 5.5% of the asset pool of the issuing entity as of its cut-off date. The Pentagon Center Mortgage Loan is an asset of the issuing entity and is part of a loan combination that includes the Pentagon Center Mortgage Loan and three other pari passu loans, which are not assets of the issuing entity. This loan combination, including the Pentagon Center Mortgage Loan, was serviced under the pooling and servicing agreement for the GS Mortgage Securities Trust 2017-GS5 transaction prior to the closing of the securitization of a pari passu portion of the Pentagon Center loan combination in the GS Mortgage Securities Trust 2017-GS6 transaction, Commission File Number 333-207677-05 (the “GSMS 2017-GS6 Transaction”). After the closing of the GSMS 2017-GS6 Transaction on May 31, 2017, this loan combination, including the Pentagon Center Mortgage Loan was, and will continue to be, serviced and administered pursuant to the pooling and servicing agreement with respect to the GSMS 2017-GS6 Transaction, which is incorporated by reference as Exhibit 4.5 to this Annual Report on Form 10-K.

The master servicer of a pooling and servicing agreement or trust and servicing agreement also functions as the primary servicer of the related mortgage loans serviced and administered pursuant to such agreement unless a separate primary servicer is identified herein. If this report does not identify a separate primary servicer, the servicer compliance statement provided by the master servicer under any such agreement also encompasses its responsibilities as primary servicer of the related mortgage loan or mortgage loans.

Wells Fargo Bank, National Association is the certificate administrator of the mortgage loans serviced under the Pooling and Servicing Agreement, the master servicer of the mortgage loans serviced under the Pooling and Servicing Agreement prior to March 1, 2025 and the primary servicer of The Summit Birmingham Mortgage Loan, The Davenport Mortgage Loan and the Key Center Cleveland Mortgage Loan prior to March 1, 2025. As a result, Wells Fargo Bank, National Association is a “servicer” as defined in Item 1108(a)(2)(iii) of Regulation AB, in the capacities described above, because it is servicing mortgage loans that constituted 10% or more of the assets of the issuing entity as of its cut-off date. The assessments of compliance with applicable servicing criteria, accountants’ attestation reports and servicer compliance statements delivered by Wells Fargo Bank, National Association in the capacities described above are listed in the Exhibit Index.

Trimont LLC is the master servicer of the mortgage loans serviced under the Pooling and Servicing Agreement on and after March 1, 2025 and the primary servicer of The Summit Birmingham Mortgage Loan, The Davenport Mortgage Loan and the Key Center Cleveland Mortgage Loan on and after March 1, 2025. As a result, Trimont LLC is a “servicer” as defined in Item 1108(a)(2)(iii) of Regulation AB, in the capacities described above, because it is servicing mortgage loans that constituted 10% or more of the assets of the issuing entity as of its cut-off date. The assessments of compliance with applicable servicing criteria, accountants’ attestation reports and servicer compliance statements delivered by Trimont LLC in the capacities described above are listed in the Exhibit Index.

Wells Fargo Bank, National Association is the custodian of the mortgage loans serviced under the Pooling and Servicing Agreement, The Summit Birmingham Mortgage Loan, the Pentagon Center Mortgage Loan and The Davenport Mortgage Loan. As a result, Wells Fargo Bank, National Association is a servicing function participant in the capacities described above, because it is servicing mortgage loans that constituted 5% or more of the assets of the issuing entity as of its cut-off date. The assessments of compliance with applicable servicing criteria and accountants’ attestation reports delivered by Wells Fargo Bank, National Association in the capacities described above are listed in the Exhibit Index.

Rialto Capital Advisors, LLC is the special servicer of the mortgage loans serviced under the Pooling and Servicing Agreement, The Summit Birmingham Mortgage Loan and the Key Center Cleveland Mortgage Loan. As a result, Rialto Capital Advisors, LLC is a “servicer” as defined in Item 1108(a)(2)(iii) of Regulation AB, in the capacities described above, because it is servicing mortgage loans that constituted 10% or more of the assets of the issuing entity as of its cut-off date. The assessments of compliance with applicable servicing criteria, accountants’ attestation reports and servicer compliance statements delivered by Rialto Capital Advisors, LLC in the capacities described above are listed in the Exhibit Index.

Park Bridge Lender Services LLC is the operating advisor of The Summit Birmingham Mortgage Loan and the Key Center Cleveland Mortgage Loan. As a result, Park Bridge Lender Services LLC is a servicing function participant in the capacities described above, because it is servicing mortgage loans that constituted 5% or more of the assets of the issuing entity as of its cut-off date. The assessments of compliance with applicable servicing criteria and accountants’ attestation reports delivered by Park Bridge Lender Services LLC in the capacities described above are listed in the Exhibit Index.

Wells Fargo Bank, National Association acts as trustee of the Pentagon Center Mortgage Loan. Pursuant to the pooling and servicing agreement for the GSMS 2017-GS6 Transaction, the trustee is required to provide an assessment of compliance with applicable servicing criteria solely with respect to Item 1122(d)(2)(iii) of Regulation AB (regarding advances of funds or guarantees regarding collections, cash flows or distributions, and any interest or other fees charged for such advances, are made, reviewed and approved as specified in the transaction agreements). However, during the reporting period, the trustee did not perform any servicing function with respect to the servicing criteria specified in Item 1122(d)(2)(iii) of Regulation AB. The master servicer or the special servicer, to the extent required, performed the servicing function identified with respect to Item 1122(d)(2)(iii) of Regulation AB, and each such party included Item 1122(d)(2)(iii) of Regulation AB in the assessment of compliance with applicable servicing criteria and accountant’s attestation report for the subject transaction. As a result, this Annual Report on Form 10-K does not include an assessment of compliance with applicable servicing criteria of the trustee. One or more other servicers of the Pentagon Center Mortgage Loan have delivered one or more assessments of compliance with respect to Item 1122(d)(2)(iii) of Regulation AB.

Wilmington Trust, National Association acts as trustee of the mortgage loans serviced under the Pooling and Servicing Agreement, The Summit Birmingham Mortgage Loan and The Davenport Mortgage Loan. Pursuant to the Pooling and Servicing Agreement, the pooling and servicing agreement for the BACM 2017-BNK3 Transaction and the pooling and servicing agreement for the WFCM 2017-RB1 Transaction, the trustee is required to provide an assessment of compliance with applicable servicing criteria solely with respect to Item 1122(d)(2)(iii) of Regulation AB (regarding advances of funds or guarantees regarding collections, cash flows or distributions, and any interest or other fees charged for such advances, are made, reviewed and approved as specified in the transaction agreements). However, during the reporting period, the trustee did not perform any servicing function with respect to the servicing criteria specified in Item 1122(d)(2)(iii) of Regulation AB. The master servicer or the special servicer, to the extent required, performed the servicing function identified with respect to Item 1122(d)(2)(iii) of Regulation AB, and each such party included Item 1122(d)(2)(iii) of Regulation AB in the assessment of compliance with applicable servicing criteria and accountant’s attestation report for the subject transaction. As a result, this Annual Report on Form 10-K does not include an assessment of compliance with applicable servicing criteria of the trustee. One or more other servicers of the mortgage loans serviced under the Pooling and Servicing Agreement, The Summit Birmingham Mortgage Loan and The Davenport Mortgage Loan have delivered one or more assessments of compliance with respect to Item 1122(d)(2)(iii) of Regulation AB.

Deutsche Bank Trust Company Americas acts as trustee of the Key Center Cleveland Mortgage Loan. Pursuant to the pooling and servicing agreement for the CGCMT 2017-P7 Transaction, the trustee is required to provide an assessment of compliance with applicable servicing criteria solely with respect to Item 1122(d)(2)(iii) of Regulation AB (regarding advances of funds or guarantees regarding collections, cash flows or distributions, and any interest or other fees charged for such advances, are made, reviewed and approved as specified in the transaction agreements). However, during the reporting period, the trustee did not perform any servicing function with respect to the servicing criteria specified in Item 1122(d)(2)(iii) of Regulation AB. The master servicer or the special servicer, to the extent required, performed the servicing function identified with respect to Item 1122(d)(2)(iii) of Regulation AB, and each such party included Item 1122(d)(2)(iii) of Regulation AB in the assessment of compliance with applicable servicing criteria and accountant’s attestation report for the subject transaction. As a result, this Annual Report on Form 10-K does not include an assessment of compliance with applicable servicing criteria of the trustee. One or more other servicers of the Key Center Cleveland Mortgage Loan have delivered one or more assessments of compliance with respect to Item 1122(d)(2)(iii) of Regulation AB.

This Annual Report on Form 10-K includes assessments of compliance with applicable servicing criteria and accountants’ attestation reports from CoreLogic Solutions, LLC. This entity was engaged by each master servicer under the Pooling and Servicing Agreement and each primary servicer of The Summit Birmingham Mortgage Loan, The Davenport Mortgage Loan and the Key Center Cleveland Mortgage Loan to remit tax payments received from the escrow accounts of borrowers to local taxing authorities, to report tax amounts due, to verify tax parcel information, and to verify non-escrow tax payments. These servicing functions are included within the servicing criteria set forth in Item 1122(d)(4)(xi) of Regulation AB. Therefore, under the principles-based definition of “servicer” set forth in Item 1101(j) of Regulation AB that looks to the functions that an entity performs, this vendor is a “servicer” for the purposes of Item 1122 of Regulation AB. See Compliance and Disclosure Interpretations, Section 301.01 (Item 1101(j)).

This Annual Report on Form 10-K includes an assessment of compliance with applicable servicing criteria, accountants’ attestation report and servicer compliance statement from Computershare Trust Company, National Association (“CTCNA”). CTCNA was engaged by Wells Fargo Bank, National Association (“Wells Fargo”), in its capacity as certificate administrator and custodian, to perform certain specified servicing functions identified in the assessment of compliance with applicable servicing criteria and accountants’ attestation reports. Wells Fargo engaged CTCNA in connection with the sale of Wells Fargo’s corporate trust services business to CTCNA and its affiliates. Further, under the principles-based definition of “servicer” set forth in Item 1101(j) of Regulation AB that looks to the functions that an entity performs, this party is a “servicer” for the purposes of Item 1123 of Regulation AB. See Compliance and Disclosure Interpretations, Section 301.01 (Item 1101(j)).

The assessments of compliance with applicable servicing criteria, accountants’ attestation reports and servicer compliance statements of the certificate administrator of The Summit Birmingham Mortgage Loan, The Davenport Mortgage Loan, the Pentagon Center Mortgage Loan and the Key Center Cleveland Mortgage Loan are omitted from this Annual Report on Form 10-K as the certificate administrator pursuant to the related pooling and servicing agreement or trust and servicing agreement does not perform any activities that address servicing criteria with respect to the issuing entity and because they are each not a “servicer” that meets the criteria in Item 1108(a)(2)(i) through (iii) of Regulation AB.

With respect to the pari passu loan combinations that include The Davenport Mortgage Loan, the Pentagon Center Mortgage Loan and the Key Center Cleveland Mortgage Loan, (i) the report on assessment of compliance with servicing criteria and attestation report on assessment of compliance with servicing criteria of Deutsche Bank Trust Company Americas as custodian of the Key Center Cleveland Mortgage Loan, listed on the Exhibit Index are omitted from this Annual Report on Form 10-K as they are not required to be included on this Annual Report on Form 10-K per Instruction 3 to Item 1122 of Regulation AB because it is a party performing activities that address servicing criteria relating to 5% or less of the assets of the issuing entity; and (ii) the servicer compliance statements of Greystone Servicing Company LLC (as successor to C-III Asset Management LLC) as special servicer of The Davenport Mortgage Loan, Midland Loan Services, a Division of PNC Bank, National Association as primary servicer of the Pentagon Center Mortgage Loan and K-Star Asset Management LLC as special servicer of the Pentagon Center Mortgage Loan, listed on the Exhibit Index are omitted from this Annual Report on Form 10-K as they are not required by Item 1123 of Regulation AB to be included on this Annual Report on Form 10-K because they are each an unaffiliated party that is not a “servicer” that meets the criteria in Item 1108(a)(2)(i) through (iii) of Regulation AB.

PART I

Item 1. Business.

Omitted.

Item 1A. Risk Factors.

Omitted.

Item 1B. Unresolved Staff Comments.

None.

Item 1C. Cybersecurity.

Omitted.

Item 2. Properties.

Omitted.

Item 3. Legal Proceedings.

Omitted.

Item 4. Mine Safety Disclosures.

Not applicable.

PART II

Omitted.

Item 6. [Reserved]

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Omitted.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

Omitted.

Item 8. Financial Statements and Supplementary Data.

Omitted.

Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.

Omitted.

Item 9A. Controls and Procedures.

Omitted.

Item 9B. Other Information.

None.

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.

None.

PART III

Item 10. Directors, Executive Officers and Corporate Governance.

Omitted.

Item 11. Executive Compensation.

Omitted.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

Omitted.

Item 14. Principal Accountant Fees and Services.

Omitted.

ADDITIONAL DISCLOSURE ITEMS FOR REGULATION AB

Item 1112(b) of Regulation AB, Significant Obligor Financial Information.

No single obligor represents 10% or more of the pool assets held by the issuing entity.

Item 1114(b)(2) of Regulation AB, Significant Enhancement Provider Financial Information.

No entity or group of affiliated entities provides any external credit enhancement or other support for the certificates within this transaction as described under Item 1114(a) of Regulation AB.

Item 1115(b) of Regulation AB, Certain Derivatives Instruments (Financial Information).

No entity or group of affiliated entities provides any derivative instruments or other support for the certificates within this transaction as described under Item 1115 of Regulation AB.

Item 1117 of Regulation AB, Legal Proceedings.

The registrant knows of no material pending legal proceeding involving the trust or any party related to the trust, other than routine litigation incidental to the duties of those respective parties, and the following, with respect to Deutsche Bank Trust Company Americas, as trustee and custodian.

In 2014 and 2015, several investors sued several trustees of residential mortgage-backed securities (“RMBS”) trusts, including Deutsche Bank Trust Company Americas (“DBTCA”), concerning the trustees’ administration of RMBS trusts. These cases generally alleged that the RMBS trustees failed to perform purported duties, as trustees for private-label RMBS trusts, to enforce breaches of representations and warranties as to mortgage loans held by the trusts and to enforce breaches by servicers of their mortgage loan servicing obligations for the trusts. Investors have sued DBTCA in six of these cases. DBTCA has settled two cases brought by funds managed by Blackrock Advisors, LLC, PIMCO-Advisors, L.P. and others; and obtained summary judgment in one case, brought by certain special purpose entities including Phoenix Light SF Limited. In addition, the two cases described below remain active.

On November 30, 2017, DBTCA was added as a defendant to a case brought by Commerzbank AG (“Commerzbank”) in the U.S. District Court for the Southern District of New York, in which Commerzbank previously alleged incorrectly that Deutsche Bank National Trust Company (“DBNTC”) served as trustee for all 50 of the trusts at issue. On November 30, 2017, Commerzbank filed a second amended complaint that names DBTCA as a defendant in addition to DBNTC. DBTCA serves as trustee for 1 of the 50 trusts at issue. DBNTC serves as trustee for the other 49 trusts at issue. Commerzbank’s second amended complaint brings claims for violation of the U.S. Trust Indenture Act of 1939 (“TIA”); breach of contract; breach of fiduciary duty; negligence; violation of the New York Streit Act (“Streit Act”); and breach of the covenant of good faith. However, in the second amended complaint, Commerzbank acknowledges that, before DBTCA was added to the case, the court dismissed Commerzbank’s TIA claims for the trusts governed by pooling and servicing agreements, as well as its Streit Act claims and claims for breach of the covenant of good faith, and Commerzbank only includes these claims to preserve any rights on appeal. The second amended complaint alleges that DBNTC and DBTCA caused Commerzbank to suffer “hundreds of millions of dollars in losses,” but the complaint does not include a demand for money damages in a sum certain. On January 29, 2018, DBNTC and DBTCA filed an answer to the second amended complaint. On December 7, 2018, DBNTC and DBTCA filed a motion for summary judgment. Also on December 7, 2018, Commerzbank, jointly with the Phoenix Light plaintiffs, filed a motion for partial summary judgment. On February 8, 2022, the court issued an order in which it granted in part DBNTC and DBTCA’s motion for summary judgment and denied plaintiffs’ motion for partial summary judgment. As a result of that order, many of plaintiffs’ claims and theories were dismissed with prejudice. On September 26, 2024, DBNTC and DBTCA filed a motion for summary judgment, which has been fully briefed.

On December 30, 2015, IKB International, S.A. in Liquidation and IKB Deutsche Industriebank A.G. (collectively, “IKB”), as an investor in 37 RMBS trusts, filed a summons with notice in the Supreme Court of the State of New York, New York County, against DBNTC and DBTCA as trustees of the trusts. On May 27, 2016, IKB served its complaint asserting claims for breach of contract, breach of fiduciary duty, breach of duty to avoid conflicts of interest, violation of the Streit Act, violation of the TIA, violation of Regulation AB, and violation of Section 9 of the Uniform Commercial Code. IKB alleges that DBNTC and DBTCA are liable for over U.S. $268 million in damages. On October 5, 2016, DBNTC and DBTCA, together with several other trustees defending lawsuits by IKB, filed a joint motion to dismiss. On January 6, 2017, IKB filed a notice of discontinuance, voluntarily dismissing with prejudice all claims as to three trusts. On June 20, 2017, the parties filed a stipulation, voluntarily dismissing with prejudice all claims as to four additional trusts. On January 27, 2021, the court granted in part and denied in part DBNTC and DBTCA’s motion to dismiss. The court granted the motion to dismiss with respect to IKB’s claims for violations of the Streit Act, Regulation AB, and Section 9 of the Uniform Commercial Code, as well as certain aspects of IKB’s claims for breach of contract, breach of fiduciary duty, and violation of the TIA. The court denied the remainder of the motion to dismiss. IKB’s remaining claims for breach of contract, breach of fiduciary duty, breach of duty to avoid conflicts of interest, and violation of the TIA will proceed. On May 10, 2021, DBNTC and DBTCA filed a notice of appeal with the New York Supreme Court Appellate Division, First Department, regarding certain aspects of the court’s order on the motion to dismiss. On May 20, 2021, IKB filed a notice of cross appeal with respect to other aspects of that order. On August 30, 2022, the New York Supreme Court, Appellate Division, First Department affirmed in part and reversed in part the court’s order on the motion to dismiss. After DBNTC and DBTCA appealed the First Department’s decision, on June 15, 2023, the New York Court of Appeals reversed the First Department’s decision in part, dismissing certain additional contract claims, as well as IKB’s claims for breach of fiduciary duty and breach of duty to avoid conflicts of interest. On June 2, 2021, IKB filed a motion for re-argument regarding certain aspects of the court’s order on the motion to dismiss, which the court denied on August 3, 2021. On May 13, 2021, DBNTC and DBTCA filed an answer to the complaint. On October 28, 2021, the parties filed a stipulation, voluntarily dismissing with prejudice all claims as to seven additional trusts. On December 29, 2021, the parties filed a stipulation, voluntarily dismissing with prejudice all claims as to one additional trust. On April 22, 2022, the parties filed a stipulation, voluntarily dismissing with prejudice all claims as to 17 certificates at issue, including all claims as to 5 trusts. On February 28, 2023, the parties filed a stipulation, voluntarily dismissing with prejudice all claims as to two trusts, leaving 15 trusts at issue. On November 21, 2023, the parties filed a stipulation, voluntarily dismissing with prejudice all claims as to three trusts, leaving 12 trusts at issue. On November 14, 2024, DBNTC and DBTCA filed a motion for summary judgment. Also on November 14, 2024, IKB filed a motion for partial summary judgment. On August 11, 2025, the court granted in part and denied in part certain aspects of both motions. On October 20, 2025, the court resolved the remainder of both motions and dismissed certain additional claims. All parties have filed notices of appeal with respect to certain aspects of the court’s summary judgment orders.

It is DBTCA’s belief that it has no pending legal proceedings (including, based on DBTCA’s current evaluation, the litigation disclosed in the foregoing paragraphs) that would materially affect its ability to perform its duties under the applicable servicing agreement.

Item 1119 of Regulation AB, Affiliations and Certain Relationships and Related Transactions.

The information regarding this Item has been previously provided in the prospectus of the Registrant relating to the issuing entity filed on April 19, 2017 pursuant to Rule 424(b)(2).

Item 1122 of Regulation AB, Compliance with Applicable Servicing Criteria.

The reports on assessments of compliance with the servicing criteria for asset-backed securities and related attestation reports on such assessments of compliance with respect to the mortgage loans are attached hereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit Z to the Pooling and Servicing Agreement incorporated by reference as Exhibit 4.1 to this Annual Report on Form 10-K is a chart identifying the entities participating in a servicing function for the transaction responsible for each applicable servicing criteria set forth in Item 1122(d).

The reports on assessments of compliance with the servicing criteria for asset-backed securities and related attestation reports on such assessments of compliance with respect to The Summit Birmingham Mortgage Loan, which is being serviced and administered pursuant to the pooling and servicing agreement for the BACM 2017-BNK3 Transaction, are attached hereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit Z to the pooling and servicing agreement for the BACM 2017-BNK3 Transaction incorporated by reference as Exhibit 4.2 to this Annual Report on Form 10-K is a chart identifying the entities participating in a servicing function for the BACM 2017-BNK3 Transaction responsible for each applicable servicing criteria set forth in Item 1122(d).

The reports on assessments of compliance with the servicing criteria for asset-backed securities and related attestation reports on such assessments of compliance with respect to The Davenport Mortgage Loan, which is being serviced and administered pursuant to the pooling and servicing agreement for the WFCM 2017-RB1 Transaction, are attached hereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit AA to the pooling and servicing agreement for the WFCM 2017-RB1 Transaction incorporated by reference as Exhibit 4.3 to this Annual Report on Form 10-K is a chart identifying the entities participating in a servicing function for the WFCM 2017-RB1 Transaction responsible for each applicable servicing criteria set forth in Item 1122(d).

The reports on assessments of compliance with the servicing criteria for asset-backed securities and related attestation reports on such assessments of compliance with respect to the Key Center Cleveland Mortgage Loan, which is being serviced and administered pursuant to the pooling and servicing agreement for the CGCMT 2017-P7 Transaction, are attached hereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit O to the pooling and servicing agreement for the CGCMT 2017-P7 Transaction incorporated by reference as Exhibit 4.4 to this Annual Report on Form 10-K is a chart identifying the entities participating in a servicing function for the CGCMT 2017-P7 Transaction responsible for each applicable servicing criteria set forth in Item 1122(d).

The reports on assessments of compliance with the servicing criteria for asset-backed securities and related attestation reports on such assessments of compliance with respect to the Pentagon Center Mortgage Loan, which is being serviced and administered pursuant to the pooling and servicing agreement for the GSMS 2017-GS6 Transaction, are attached hereto under Item 15 to this Annual Report on Form 10-K. Attached as Exhibit AA to the pooling and servicing agreement for the GSMS 2017-GS6 Transaction incorporated by reference as Exhibit 4.5 to this Annual Report on Form 10-K is a chart identifying the entities participating in a servicing function for the GSMS 2017-GS6 Transaction responsible for each applicable servicing criteria set forth in Item 1122(d).

Item 1123 of Regulation AB, Servicer Compliance Statement.

The servicer compliance statements are attached as Exhibits to this Annual Report on Form 10-K.

PART IV

Item 15. Exhibits and Financial Statement Schedules

(a) The following is a list of documents filed as part of this Annual Report on Form 10-K:

(1) Not applicable

(2) Not applicable

(3) See below

4.1 Pooling and Servicing Agreement, dated as of April 1, 2017, by and among Wells Fargo Commercial Mortgage Securities, Inc., as Depositor, Wells Fargo Bank, National Association, as Master Servicer, Rialto Capital Advisors, LLC, as Special Servicer, Wells Fargo Bank, National Association, as Certificate Administrator, Wilmington Trust, National Association, as Trustee, and Pentalpha Surveillance LLC, as Operating Advisor and as Asset Representations Reviewer (filed as Exhibit 4.1 to the registrant’s Current Report on Form 8-K/A filed on June 6, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein), as amended by Amendment No. 1 to Pooling and Servicing Agreement, dated as of June 18, 2018, by and among Wells Fargo Commercial Mortgage Securities, Inc., as Depositor, Wells Fargo Bank, National Association, as Master Servicer, Rialto Capital Advisors, LLC, as Special Servicer, Wells Fargo Bank, National Association, as Certificate Administrator, Wilmington Trust, National Association, as Trustee, and Pentalpha Surveillance LLC, as Operating Advisor and as Asset Representations Reviewer (filed as Exhibit 4.1 to the registrant's Current Report on Form 8-K filed on June 19, 2018 under Commission File No. 333-206677-15 and incorporated by reference herein).

4.2 Pooling and Servicing Agreement, dated as of February 1, 2017, by and among Banc of America Merrill Lynch Commercial Mortgage Inc., as Depositor, Wells Fargo Bank, National Association, as Master Servicer, Midland Loan Services, a Division of PNC Bank, National Association, as Special Servicer, Wells Fargo Bank, National Association, as Certificate Administrator, Wilmington Trust, National Association, as Trustee, and Park Bridge Lender Services LLC, as Operating Advisor and as Asset Representations Reviewer (filed as Exhibit 99.4 to the registrant’s Current Report on Form 8-K filed on April 19, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein).

4.3 Pooling and Servicing Agreement, dated as of March 1, 2017, by and among Wells Fargo Commercial Mortgage Securities, Inc., as Depositor, Wells Fargo Bank, National Association, as Master Servicer, C-III Asset Management LLC, as Special Servicer, Wells Fargo Bank, National Association, as Certificate Administrator, Wilmington Trust, National Association, as Trustee, and Trimont Real Estate Advisors, LLC, as Operating Advisor and as Asset Representations Reviewer (filed as Exhibit 99.6 to the registrant’s Current Report on Form 8-K filed on April 19, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein).

4.4 Pooling and Servicing Agreement, dated as of April 1, 2017, by and among Citigroup Commercial Mortgage Securities Inc., as Depositor, Wells Fargo Bank, National Association, as Master Servicer, Rialto Capital Advisors, LLC, as Special Servicer, Park Bridge Lender Services LLC, as Operating Advisor and as Asset Representations Reviewer, Citibank, N.A., as Certificate Administrator and Deutsche Bank Trust Company Americas, as Trustee (filed as Exhibit 99.8 to the registrant’s Current Report on Form 8-K filed on April 19, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein).

4.5 Pooling and Servicing Agreement, dated as of May 1, 2017, by and among GS Mortgage Securities Corporation II, as Depositor, Midland Loan Services, a Division of PNC Bank, National Association, as Master Servicer, Midland Loan Services, a Division of PNC Bank, National Association, as Special Servicer, Wells Fargo Bank, National Association, as Certificate Administrator, Wells Fargo Bank, National Association, as Trustee, and Pentalpha Surveillance LLC, as Operating Advisor and as Asset Representations Reviewer (filed as Exhibit 99.19 to the registrant’s Current Report on Form 8-K/A filed on June 6, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein).

4.6 Agreement Between Note Holders, dated as of February 13, 2017, by and between Bank of America, N.A., as Initial Note A-1 Holder, and Bank of America, N.A., as Initial Note A-2 Holder (filed as Exhibit 99.9 to the registrant’s Current Report on Form 8-K filed on April 19, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein).

4.7 Agreement Between Note Holders, dated as of December 20, 2016, by and between Bank of America, N.A., as Initial Note A-1 Holder, Bank of America, N.A., as Initial Note A-2 Holder, Barclays Bank PLC, as Initial Note A-3 Holder, and Barclays Bank PLC, as Initial Note A-4 Holder (filed as Exhibit 99.10 to the registrant’s Current Report on Form 8-K filed on April 19, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein).

4.8 Agreement Between Note Holders, dated as of March 15, 2017, by and between Wells Fargo Bank, National Association, as Initial Note A-1 Holder, Wells Fargo Bank, National Association, as Initial Note A-2 Holder, and Goldman Sachs Mortgage Company, as Initial Note A-3 Holder (filed as Exhibit 99.11 to the registrant’s Current Report on Form 8-K filed on April 19, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein).

4.9 Co-Lender Agreement, dated as of March 16, 2017, by and between Goldman Sachs Mortgage Company, as Initial Note A-1 Holder and Initial Note A-2 Holder, and Morgan Stanley Bank, N.A., as Initial Note A-3 Holder, Initial Note A-4 Holder, Initial Note A-5 Holder and Initial Note A-6 Holder (filed as Exhibit 99.12 to the registrant’s Current Report on Form 8-K filed on April 19, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein).

4.10 Agreement Between Note Holders, dated as of March 30, 2017, by and between Wells Fargo Bank, National Association, as Initial Note A-1 Holder, and Wells Fargo Bank, National Association, as Initial Note A-2 Holder (filed as Exhibit 99.14 to the registrant’s Current Report on Form 8-K filed on April 19, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein).

4.11 Co-Lender Agreement, dated as of January 31, 2017, by and between Citi Real Estate Funding Inc., as Initial Note A-1 Holder and Initial Note A-4 Holder, Bank of America, N.A., as Initial Note A-2 Holder and Initial Note A-5 Holder, and Deutsche Bank AG, New York Branch, as Initial Note A-3 Holder and initial note A-6 holder (filed as Exhibit 99.16 to the registrant’s Current Report on Form 8-K filed on April 19, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein).

4.12 Agreement Between Note Holders, dated as of October 27, 2016, by and between Bank of America, N.A., as Initial Note A-1-1 Holder, Bank of America, N.A., as Initial Note A-1-2 Holder, and Bank of America, N.A., as Initial Note A-2 Holder (filed as Exhibit 99.17 to the registrant’s Current Report on Form 8-K filed on April 19, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein).

4.13 Agreement Between Note Holders, dated as of April 13, 2017, by and between Morgan Stanley Bank, N.A., as Initial Note A-1 Holder, and Morgan Stanley Bank, N.A., as Initial Note A-2 Holder (filed as Exhibit 99.18 to the registrant’s Current Report on Form 8-K filed on April 19, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein).

31 Rule 13a-14(d)/15d-14(d) Certifications.

33 Reports on assessment of compliance with servicing criteria for asset-backed securities.

33.1 Wells Fargo Bank, National Association, as Master Servicer prior to March 1, 2025

33.2 Trimont LLC, as Master Servicer on and after March 1, 2025

33.3 Rialto Capital Advisors, LLC, as Special Servicer

33.4 Wilmington Trust, National Association, as Trustee (Omitted. See Explanatory Notes.)

33.5 Wells Fargo Bank, National Association, as Certificate Administrator

33.6 Wells Fargo Bank, National Association, as Custodian

33.7 Pentalpha Surveillance LLC, as Operating Advisor

33.8 CoreLogic Solutions, LLC, as Servicing Function Participant

33.9 Computershare Trust Company, National Association, as Servicing Function Participant for the Certificate Administrator

33.10 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian

33.11 Wells Fargo Bank, National Association, as Primary Servicer of the D.C. Office Portfolio Mortgage Loan prior to March 1, 2025 (see Exhibit 33.1)

33.12 Trimont LLC, as Primary Servicer of the D.C. Office Portfolio Mortgage Loan on and after March 1, 2025 (see Exhibit 33.2)

33.13 Rialto Capital Advisors, LLC, as Special Servicer of the D.C. Office Portfolio Mortgage Loan (see Exhibit 33.3)

33.14 Wilmington Trust, National Association, as Trustee of the D.C. Office Portfolio Mortgage Loan (Omitted. See Explanatory Notes.)

33.15 Wells Fargo Bank, National Association, as Custodian of the D.C. Office Portfolio Mortgage Loan (see Exhibit 33.6)

33.16 Pentalpha Surveillance LLC, as Operating Advisor of the D.C. Office Portfolio Mortgage Loan (see Exhibit 33.7)

33.17 CoreLogic Solutions, LLC, as Servicing Function Participant of the D.C. Office Portfolio Mortgage Loan (see Exhibit 33.8)

33.18 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.19 Wells Fargo Bank, National Association, as Primary Servicer of the One West 34th Street Mortgage Loan prior to March 1, 2025 (see Exhibit 33.1)

33.20 Trimont LLC, as Primary Servicer of the One West 34th Street Mortgage Loan on and after March 1, 2025 (see Exhibit 33.2)

33.21 Rialto Capital Advisors, LLC, as Special Servicer of the One West 34th Street Mortgage Loan (see Exhibit 33.3)

33.22 Wilmington Trust, National Association, as Trustee of the One West 34th Street Mortgage Loan (Omitted. See Explanatory Notes.)

33.23 Wells Fargo Bank, National Association, as Custodian of the One West 34th Street Mortgage Loan (see Exhibit 33.6)

33.24 Pentalpha Surveillance LLC, as Operating Advisor of the One West 34th Street Mortgage Loan (see Exhibit 33.7)

33.25 CoreLogic Solutions, LLC, as Servicing Function Participant of the One West 34th Street Mortgage Loan (see Exhibit 33.8)

33.26 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.27 Wells Fargo Bank, National Association, as Primary Servicer of the American Greetings HQ Mortgage Loan prior to March 1, 2025 (see Exhibit 33.1)

33.28 Trimont LLC, as Primary Servicer of the American Greetings HQ Mortgage Loan on and after March 1, 2025 (see Exhibit 33.2)

33.29 Rialto Capital Advisors, LLC, as Special Servicer of the American Greetings HQ Mortgage Loan (see Exhibit 33.3)

33.30 Wilmington Trust, National Association, as Trustee of the American Greetings HQ Mortgage Loan (Omitted. See Explanatory Notes.)

33.31 Wells Fargo Bank, National Association, as Custodian of the American Greetings HQ Mortgage Loan (see Exhibit 33.6)

33.32 Pentalpha Surveillance LLC, as Operating Advisor of the American Greetings HQ Mortgage Loan (see Exhibit 33.7)

33.33 CoreLogic Solutions, LLC, as Servicing Function Participant of the American Greetings HQ Mortgage Loan (see Exhibit 33.8)

33.34 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.35 Wells Fargo Bank, National Association, as Primary Servicer of the Ralph’s Food Warehouse Portfolio Mortgage Loan prior to March 1, 2025 (see Exhibit 33.1)

33.36 Trimont LLC, as Primary Servicer of the Ralph’s Food Warehouse Portfolio Mortgage Loan on and after March 1, 2025 (see Exhibit 33.2)

33.37 Rialto Capital Advisors, LLC, as Special Servicer of the Ralph’s Food Warehouse Portfolio Mortgage Loan (see Exhibit 33.3)

33.38 Wilmington Trust, National Association, as Trustee of the Ralph’s Food Warehouse Portfolio Mortgage Loan (Omitted. See Explanatory Notes.)

33.39 Wells Fargo Bank, National Association, as Custodian of the Ralph’s Food Warehouse Portfolio Mortgage Loan (see Exhibit 33.6)

33.40 Pentalpha Surveillance LLC, as Operating Advisor of the Ralph’s Food Warehouse Portfolio Mortgage Loan (see Exhibit 33.7)

33.41 CoreLogic Solutions, LLC, as Servicing Function Participant of the Ralph’s Food Warehouse Portfolio Mortgage Loan (see Exhibit 33.8)

33.42 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.43 Wells Fargo Bank, National Association, as Primary Servicer of The Summit Birmingham Mortgage Loan prior to March 1, 2025 (see Exhibit 33.1)

33.44 Trimont LLC, as Primary Servicer of The Summit Birmingham Mortgage Loan on and after March 1, 2025 (see Exhibit 33.2)

33.45 Rialto Capital Advisors, LLC, as Special Servicer of The Summit Birmingham Mortgage Loan (see Exhibit 33.3)

33.46 Wilmington Trust, National Association, as Trustee of The Summit Birmingham Mortgage Loan (Omitted. See Explanatory Notes.)

33.47 Wells Fargo Bank, National Association, as Custodian of The Summit Birmingham Mortgage Loan (see Exhibit 33.6)

33.48 Park Bridge Lender Services LLC, as Operating Advisor of The Summit Birmingham Mortgage Loan

33.49 CoreLogic Solutions, LLC, as Servicing Function Participant of The Summit Birmingham Mortgage Loan (see Exhibit 33.8)

33.50 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.51 Wells Fargo Bank, National Association, as Primary Servicer of The Davenport Mortgage Loan prior to March 1, 2025 (see Exhibit 33.1)

33.52 Trimont LLC, as Primary Servicer of The Davenport Mortgage Loan on and after March 1, 2025 (see Exhibit 33.2)

33.53 Greystone Servicing Company LLC (as successor to C-III Asset Management LLC), as Special Servicer of The Davenport Mortgage Loan

33.54 Wilmington Trust, National Association, as Trustee of The Davenport Mortgage Loan (Omitted. See Explanatory Notes.)

33.55 Wells Fargo Bank, National Association, as Custodian of The Davenport Mortgage Loan (see Exhibit 33.6)

33.56 BellOak, LLC, as Operating Advisor of The Davenport Mortgage Loan

33.57 CoreLogic Solutions, LLC, as Servicing Function Participant of The Davenport Mortgage Loan (see Exhibit 33.8)

33.58 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.10)

33.59 Wells Fargo Bank, National Association, as Primary Servicer of the Key Center Cleveland Mortgage Loan prior to March 1, 2025 (see Exhibit 33.1)

33.60 Trimont LLC, as Primary Servicer of the Key Center Cleveland Mortgage Loan on and after March 1, 2025 (see Exhibit 33.2)

33.61 Rialto Capital Advisors, LLC, as Special Servicer of the Key Center Cleveland Mortgage Loan (see Exhibit 33.3)

33.62 Deutsche Bank Trust Company Americas, as Trustee and Custodian of the Key Center Cleveland Mortgage Loan (Omitted. See Explanatory Notes.)

33.63 Park Bridge Lender Services LLC, as Operating Advisor of the Key Center Cleveland Mortgage Loan (see Exhibit 33.48)

33.64 CoreLogic Solutions, LLC, as Servicing Function Participant of the Key Center Cleveland Mortgage Loan (see Exhibit 33.8)

33.65 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Pentagon Center Mortgage Loan

33.66 K-Star Asset Management LLC, as Special Servicer of the Pentagon Center Mortgage Loan

33.67 Wells Fargo Bank, National Association, as Trustee of the Pentagon Center Mortgage Loan (Omitted. See Explanatory Notes.)

33.68 Wells Fargo Bank, National Association, as Custodian of the Pentagon Center Mortgage Loan (see Exhibit 33.6)

33.69 Pentalpha Surveillance LLC, as Operating Advisor of the Pentagon Center Mortgage Loan (see Exhibit 33.7)

33.70 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 33.10)

34 Attestation reports on assessment of compliance with servicing criteria for asset-backed securities.

34.1 Wells Fargo Bank, National Association, as Master Servicer prior to March 1, 2025

34.2 Trimont LLC, as Master Servicer on and after March 1, 2025

34.3 Rialto Capital Advisors, LLC, as Special Servicer

34.4 Wilmington Trust, National Association, as Trustee (Omitted. See Explanatory Notes.)

34.5 Wells Fargo Bank, National Association, as Certificate Administrator

34.6 Wells Fargo Bank, National Association, as Custodian

34.7 Pentalpha Surveillance LLC, as Operating Advisor

34.8 CoreLogic Solutions, LLC, as Servicing Function Participant

34.9 Computershare Trust Company, National Association, as Servicing Function Participant for the Certificate Administrator

34.10 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian

34.11 Wells Fargo Bank, National Association, as Primary Servicer of the D.C. Office Portfolio Mortgage Loan prior to March 1, 2025 (see Exhibit 34.1)

34.12 Trimont LLC, as Primary Servicer of the D.C. Office Portfolio Mortgage Loan on and after March 1, 2025 (see Exhibit 34.2)

34.13 Rialto Capital Advisors, LLC, as Special Servicer of the D.C. Office Portfolio Mortgage Loan (see Exhibit 34.3)

34.14 Wilmington Trust, National Association, as Trustee of the D.C. Office Portfolio Mortgage Loan (Omitted. See Explanatory Notes.)

34.15 Wells Fargo Bank, National Association, as Custodian of the D.C. Office Portfolio Mortgage Loan (see Exhibit 34.6)

34.16 Pentalpha Surveillance LLC, as Operating Advisor of the D.C. Office Portfolio Mortgage Loan (see Exhibit 34.7)

34.17 CoreLogic Solutions, LLC, as Servicing Function Participant of the D.C. Office Portfolio Mortgage Loan (see Exhibit 34.8)

34.18 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.19 Wells Fargo Bank, National Association, as Primary Servicer of the One West 34th Street Mortgage Loan prior to March 1, 2025 (see Exhibit 34.1)

34.20 Trimont LLC, as Primary Servicer of the One West 34th Street Mortgage Loan on and after March 1, 2025 (see Exhibit 34.2)

34.21 Rialto Capital Advisors, LLC, as Special Servicer of the One West 34th Street Mortgage Loan (see Exhibit 34.3)

34.22 Wilmington Trust, National Association, as Trustee of the One West 34th Street Mortgage Loan (Omitted. See Explanatory Notes.)

34.23 Wells Fargo Bank, National Association, as Custodian of the One West 34th Street Mortgage Loan (see Exhibit 34.6)

34.24 Pentalpha Surveillance LLC, as Operating Advisor of the One West 34th Street Mortgage Loan (see Exhibit 34.7)

34.25 CoreLogic Solutions, LLC, as Servicing Function Participant of the One West 34th Street Mortgage Loan (see Exhibit 34.8)

34.26 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.27 Wells Fargo Bank, National Association, as Primary Servicer of the American Greetings HQ Mortgage Loan prior to March 1, 2025 (see Exhibit 34.1)

34.28 Trimont LLC, as Primary Servicer of the American Greetings HQ Mortgage Loan on and after March 1, 2025 (see Exhibit 34.2)

34.29 Rialto Capital Advisors, LLC, as Special Servicer of the American Greetings HQ Mortgage Loan (see Exhibit 34.3)

34.30 Wilmington Trust, National Association, as Trustee of the American Greetings HQ Mortgage Loan (Omitted. See Explanatory Notes.)

34.31 Wells Fargo Bank, National Association, as Custodian of the American Greetings HQ Mortgage Loan (see Exhibit 34.6)

34.32 Pentalpha Surveillance LLC, as Operating Advisor of the American Greetings HQ Mortgage Loan (see Exhibit 34.7)

34.33 CoreLogic Solutions, LLC, as Servicing Function Participant of the American Greetings HQ Mortgage Loan (see Exhibit 34.8)

34.34 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.35 Wells Fargo Bank, National Association, as Primary Servicer of the Ralph’s Food Warehouse Portfolio Mortgage Loan prior to March 1, 2025 (see Exhibit 34.1)

34.36 Trimont LLC, as Primary Servicer of the Ralph’s Food Warehouse Portfolio Mortgage Loan on and after March 1, 2025 (see Exhibit 34.2)

34.37 Rialto Capital Advisors, LLC, as Special Servicer of the Ralph’s Food Warehouse Portfolio Mortgage Loan (see Exhibit 34.3)

34.38 Wilmington Trust, National Association, as Trustee of the Ralph’s Food Warehouse Portfolio Mortgage Loan (Omitted. See Explanatory Notes.)

34.39 Wells Fargo Bank, National Association, as Custodian of the Ralph’s Food Warehouse Portfolio Mortgage Loan (see Exhibit 34.6)

34.40 Pentalpha Surveillance LLC, as Operating Advisor of the Ralph’s Food Warehouse Portfolio Mortgage Loan (see Exhibit 34.7)

34.41 CoreLogic Solutions, LLC, as Servicing Function Participant of the Ralph’s Food Warehouse Portfolio Mortgage Loan (see Exhibit 34.8)

34.42 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.43 Wells Fargo Bank, National Association, as Primary Servicer of The Summit Birmingham Mortgage Loan prior to March 1, 2025 (see Exhibit 34.1)

34.44 Trimont LLC, as Primary Servicer of The Summit Birmingham Mortgage Loan on and after March 1, 2025 (see Exhibit 34.2)

34.45 Rialto Capital Advisors, LLC, as Special Servicer of The Summit Birmingham Mortgage Loan (see Exhibit 34.3)

34.46 Wilmington Trust, National Association, as Trustee of The Summit Birmingham Mortgage Loan (Omitted. See Explanatory Notes.)

34.47 Wells Fargo Bank, National Association, as Custodian of The Summit Birmingham Mortgage Loan (see Exhibit 34.6)

34.48 Park Bridge Lender Services LLC, as Operating Advisor of The Summit Birmingham Mortgage Loan

34.49 CoreLogic Solutions, LLC, as Servicing Function Participant of The Summit Birmingham Mortgage Loan (see Exhibit 34.8)

34.50 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.51 Wells Fargo Bank, National Association, as Primary Servicer of The Davenport Mortgage Loan prior to March 1, 2025 (see Exhibit 34.1)

34.52 Trimont LLC, as Primary Servicer of The Davenport Mortgage Loan on and after March 1, 2025 (see Exhibit 34.2)

34.53 Greystone Servicing Company LLC (as successor to C-III Asset Management LLC), as Special Servicer of The Davenport Mortgage Loan

34.54 Wilmington Trust, National Association, as Trustee of The Davenport Mortgage Loan (Omitted. See Explanatory Notes.)

34.55 Wells Fargo Bank, National Association, as Custodian of The Davenport Mortgage Loan (see Exhibit 34.6)

34.56 BellOak, LLC, as Operating Advisor of The Davenport Mortgage Loan

34.57 CoreLogic Solutions, LLC, as Servicing Function Participant of The Davenport Mortgage Loan (see Exhibit 34.8)

34.58 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.10)

34.59 Wells Fargo Bank, National Association, as Primary Servicer of the Key Center Cleveland Mortgage Loan prior to March 1, 2025 (see Exhibit 34.1)

34.60 Trimont LLC, as Primary Servicer of the Key Center Cleveland Mortgage Loan on and after March 1, 2025 (see Exhibit 34.2)

34.61 Rialto Capital Advisors, LLC, as Special Servicer of the Key Center Cleveland Mortgage Loan (see Exhibit 34.3)

34.62 Deutsche Bank Trust Company Americas, as Trustee and Custodian of the Key Center Cleveland Mortgage Loan (Omitted. See Explanatory Notes.)

34.63 Park Bridge Lender Services LLC, as Operating Advisor of the Key Center Cleveland Mortgage Loan (see Exhibit 34.48)

34.64 CoreLogic Solutions, LLC, as Servicing Function Participant of the Key Center Cleveland Mortgage Loan (see Exhibit 34.8)

34.65 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Pentagon Center Mortgage Loan

34.66 K-Star Asset Management LLC, as Special Servicer of the Pentagon Center Mortgage Loan

34.67 Wells Fargo Bank, National Association, as Trustee of the Pentagon Center Mortgage Loan (Omitted. See Explanatory Notes.)

34.68 Wells Fargo Bank, National Association, as Custodian of the Pentagon Center Mortgage Loan (see Exhibit 34.6)

34.69 Pentalpha Surveillance LLC, as Operating Advisor of the Pentagon Center Mortgage Loan (see Exhibit 34.7)

34.70 Computershare Trust Company, National Association, as Servicing Function Participant for the Custodian (see Exhibit 34.10)

35 Servicer compliance statements.

35.1 Wells Fargo Bank, National Association, as Master Servicer prior to March 1, 2025

35.2 Trimont LLC, as Master Servicer on and after March 1, 2025

35.3 Rialto Capital Advisors, LLC, as Special Servicer

35.4 Wells Fargo Bank, National Association, as Certificate Administrator

35.5 Computershare Trust Company, National Association, as Servicing Function Participant for the Certificate Administrator

35.6 Wells Fargo Bank, National Association, as Primary Servicer of the D.C. Office Portfolio Mortgage Loan prior to March 1, 2025 (see Exhibit 35.1)

35.7 Trimont LLC, as Primary Servicer of the D.C. Office Portfolio Mortgage Loan on and after March 1, 2025 (see Exhibit 35.2)

35.8 Rialto Capital Advisors, LLC, as Special Servicer of the D.C. Office Portfolio Mortgage Loan (see Exhibit 35.3)

35.9 Wells Fargo Bank, National Association, as Primary Servicer of the One West 34th Street Mortgage Loan prior to March 1, 2025 (see Exhibit 35.1)

35.10 Trimont LLC, as Primary Servicer of the One West 34th Street Mortgage Loan on and after March 1, 2025 (see Exhibit 35.2)

35.11 Rialto Capital Advisors, LLC, as Special Servicer of the One West 34th Street Mortgage Loan (see Exhibit 35.3)

35.12 Wells Fargo Bank, National Association, as Primary Servicer of the American Greetings HQ Mortgage Loan prior to March 1, 2025 (see Exhibit 35.1)

35.13 Trimont LLC, as Primary Servicer of the American Greetings HQ Mortgage Loan on and after March 1, 2025 (see Exhibit 35.2)

35.14 Rialto Capital Advisors, LLC, as Special Servicer of the American Greetings HQ Mortgage Loan (see Exhibit 35.3)

35.15 Wells Fargo Bank, National Association, as Primary Servicer of the Ralph’s Food Warehouse Portfolio Mortgage Loan prior to March 1, 2025 (see Exhibit 35.1)

35.16 Trimont LLC, as Primary Servicer of the Ralph’s Food Warehouse Portfolio Mortgage Loan on and after March 1, 2025 (see Exhibit 35.2)

35.17 Rialto Capital Advisors, LLC, as Special Servicer of the Ralph’s Food Warehouse Portfolio Mortgage Loan (see Exhibit 35.3)

35.18 Wells Fargo Bank, National Association, as Primary Servicer of The Summit Birmingham Mortgage Loan prior to March 1, 2025 (see Exhibit 35.1)

35.19 Trimont LLC, as Primary Servicer of The Summit Birmingham Mortgage Loan on and after March 1, 2025 (see Exhibit 35.2)

35.20 Rialto Capital Advisors, LLC, as Special Servicer of The Summit Birmingham Mortgage Loan (see Exhibit 35.3)

35.21 Wells Fargo Bank, National Association, as Primary Servicer of The Davenport Mortgage Loan prior to March 1, 2025 (see Exhibit 35.1)

35.22 Trimont LLC, as Primary Servicer of The Davenport Mortgage Loan on and after March 1, 2025 (see Exhibit 35.2)

35.23 Greystone Servicing Company LLC (as successor to C-III Asset Management LLC), as Special Servicer of The Davenport Mortgage Loan (Omitted. See Explanatory Notes.)

35.24 Wells Fargo Bank, National Association, as Primary Servicer of the Key Center Cleveland Mortgage Loan prior to March 1, 2025 (see Exhibit 35.1)

35.25 Trimont LLC, as Primary Servicer of the Key Center Cleveland Mortgage Loan on and after March 1, 2025 (see Exhibit 35.2)

35.26 Rialto Capital Advisors, LLC, as Special Servicer of the Key Center Cleveland Mortgage Loan (see Exhibit 35.3)

35.27 Midland Loan Services, a Division of PNC Bank, National Association, as Primary Servicer of the Pentagon Center Mortgage Loan (Omitted. See Explanatory Notes.)

35.28 K-Star Asset Management LLC, as Special Servicer of the Pentagon Center Mortgage Loan (Omitted. See Explanatory Notes.)

99.1 Mortgage Loan Purchase Agreement, dated as of April 5, 2017, between Wells Fargo Bank, National Association, as seller, and Wells Fargo Commercial Mortgage Securities, Inc., as purchaser (filed as Exhibit 99.3 to the registrant’s Current Report on Form 8-K/A filed on June 6, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein)

99.2 Mortgage Loan Purchase Agreement, dated as of April 5, 2017, between Bank of America, National Association, as seller, and Wells Fargo Commercial Mortgage Securities, Inc., as purchaser (filed as Exhibit 99.1 to the registrant’s Current Report on Form 8-K/A filed on June 6, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein)

99.3 Mortgage Loan Purchase Agreement, dated as of April 5, 2017, between Morgan Stanley Mortgage Capital Holdings LLC, as seller, and Wells Fargo Commercial Mortgage Securities, Inc., as purchaser (filed as Exhibit 99.2 to the registrant’s Current Report on Form 8-K/A filed on June 6, 2017 under Commission File No. 333-206677-15 and incorporated by reference herein)

(b) The exhibits required to be filed by the Registrant pursuant to Item 601 of Regulation S-K are listed above.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Wells Fargo Commercial Mortgage Securities, Inc.
(Depositor)

/s/ Anthony Sfarra

Anthony Sfarra, President

(senior officer in charge of securitization of the depositor)

Date: March 17, 2026

BANK 2017-BNK4 10-K