BANK 2017-BNK4
Explore verified charts, linked entities, and recent activity for this CMBS deal. Data last updated March 30, 2026.2026-03-30
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Quick Answer
What is BANK 2017-BNK4? A US commercial mortgage-backed security ($1.0B; 51 loans; 71 properties).
Identifiers: Series bank2017-bnk4; CIK 1698685.
Unique value: Dealcharts provides computed pool metrics, time-series performance analysis, and cross-deal comparisons not available in raw SEC EDGAR filings.
Sources: SEC EDGAR CIK 1698685.
Machine-readable data: https://dealcharts.org/llm/facts/bank2017-bnk4.json · API docs
📋 Quick Links
Who's Involved#
Rating AgenciesMoodys, Fitch, KBRA
Controlling ClassRREF III Debt AIV, LP or another affiliate of Rialto Capital Advisors, LLC.
Certificate AdministratorComputershare Trust Company, N.A.
Special ServicerRialto Capital Advisors
Operating AdvisorPentalpha Surveillance
Master ServicerWells Fargo Bank, National Association
Certificate AdministratorWells Fargo Bank, N.A.
DepositorWells Fargo Commercial Mortgage Securities, Inc.
TrusteeWilmington Trust, National Association
Master ServicerTrimont Real Estate Advisors
Deal Metrics
Key performance indicators and statistics tracking the deal's current status and history.Deal Overview
Original Trust Amount
$1,009,263,000Current Trust Amount
$836,702,766Number of Loans
51Number of Properties
71Average Loan Size
$20,597,204Portfolio Characteristics
Weighted Average Interest Rate
4.8%Weighted Average Term
114 monthsWA DSCR (NCF) at Issuance
1.76xWA DSCR (NCF) Current
1.62xOriginal Valuation
$3,687,650,000Current Valuation
$3,378,185,000Key Dates
Origination Date
3/22/2017Latest Valuation
11/25/2022Latest Transfer
5/15/2025Latest Return
3/29/2023Latest Modification
10/13/2021Special Servicing Status
Loans in Special Servicing
2Special Servicing Balance
$102,413,112Loans Returned to Master
2Balance Returned
$37,960,129Avg Time in Special Servicing
868 daysAvg Time to Return
940 daysValuation Changes
Updated Valuations
2Total Updated Value
$66,900,000Value Change Amount
-$6,000,000Value Change Percentage
-40.5%Modifications
Number of Modifications
4Modified Balance
$76,054,973Deal Charts
Charts showing deal performance over time.
Fund Exposure#
Source: NPORT-P & related disclosures • 2026-02-26| Fund Name | Filing Date | FIGI | LEI | Tranches | Total Value | Reporting Period |
|---|---|---|---|---|---|---|
| Short-Term Bond Fund of America | 2026-01-29 | Search FIGI | Lookup LEI | A-3, A-4 | $13,621,373 | 2026-08-31 |
| Intermediate Bond Fund of America | 2026-01-29 | Search FIGI | Lookup LEI | A-3 | $11,369,060 | 2026-08-31 |
| DoubleLine Total Return Bond Fund | 2026-02-26 | Search FIGI | Lookup LEI | C, X-A | $3,544,592 | 2026-03-31 |
| Bond Fund of America | 2026-02-26 | Search FIGI | Lookup LEI | A-3, A-4 | $3,270,954 | 2025-12-31 |
| NYLI MacKay Strategic Bond Fund | 2026-03-26 | Search FIGI | Lookup LEI | C | $1,815,283 | 2026-10-31 |
| VOYA SECURITIZED CREDIT FUND | 2025-08-25 | Search FIGI | Lookup LEI | D | $1,184,205 | 2026-03-31 |
| Voya Balanced Income Portfolio | 2025-08-26 | Search FIGI | Lookup LEI | D | $385,114 | 2025-12-31 |
| Fund Name | Tranches | Ids |
|---|---|---|
| Short-Term Bond Fund of America $13,621,373 2026-08-31 | A-3, A-4 | Search FIGI Lookup LEI |
| Intermediate Bond Fund of America $11,369,060 2026-08-31 | A-3 | Search FIGI Lookup LEI |
| DoubleLine Total Return Bond Fund $3,544,592 2026-03-31 | C, X-A | Search FIGI Lookup LEI |
| Bond Fund of America $3,270,954 2025-12-31 | A-3, A-4 | Search FIGI Lookup LEI |
| NYLI MacKay Strategic Bond Fund $1,815,283 2026-10-31 | C | Search FIGI Lookup LEI |
| VOYA SECURITIZED CREDIT FUND $1,184,205 2026-03-31 | D | Search FIGI Lookup LEI |
| Voya Balanced Income Portfolio $385,114 2025-12-31 | D | Search FIGI Lookup LEI |
7 of 7 funds* Use toggle buttons to sort
* This table is not yet exhaustive. It is a new feature and contains only the funds we have found so far based on the tranche identifiers we know about. We are still working on it!
* The FIGI Search url provided for each fund will link you to the OpenFIGI search page to lookup FIGI identifiers.
* Reporting Period represents the reporting period end date from the NPORT-P filing.
* For full disclosures, please visit our disclosures page.
* The FIGI Search url provided for each fund will link you to the OpenFIGI search page to lookup FIGI identifiers.
* Reporting Period represents the reporting period end date from the NPORT-P filing.
* For full disclosures, please visit our disclosures page.
Provenance & Documents
Issuance → amendments → reports. Tap to view on SEC.Context & Commentary#
Entity Statements
💬 Servicer Commentary
2026-03-30
Key Center Cleveland
Malisse J. Sinito
Prospectus ID: 10
Key Center remains in special servicing as there is continued volatility in leasing and the borrower continues to try and raise new equity to fund leasing and PIP costs. The Lender previously approved an office lease in which the Borrower was responsible for over $12.7M in leasing costs. To date the tenant and Borrower (landlord) are still negotiating the final timing for the cost to be paid. In addition, the Borrower is still working with Marriott to complete a PIP. Current property
💬 Servicer Commentary
2026-03-30
Portfolio (3 Office properties)
Prospectus ID: 1
Loan transferred to Special Servicer 5/15/2025. Borrower has executed the Pre-Negotiation Letter and has submitted Due Diligence. Special Servicer evaluating workout proposal from Borrower. Borrower no longer wished to fund Operating Expenses. Discussing possible appointment of a Receiver while continuing workout discussions.
External Analysis
No external analysis linked yet. Contact us to publish and link your research.Have a source-backed note on this deal? Contact us.
Datasets & API#
Machine-readable spec (ODPS): /odps/cmbs-deals.yamlGET https://api.dealcharts.org/deals/bank2017-bnk4
{
"deal_id": "bank2017-bnk4",
"issuer": "",
"shelf": "",
"issue_date": "",
"linked_entities": [
{
"role": "Rating Agencies",
"name": "Moodys, Fitch, KBRA"
},
{
"role": "Controlling Class",
"name": "RREF III Debt AIV, LP or another affiliate of Rialto Capital Advisors, LLC."
},
{
"role": "Certificate Administrator",
"name": "Computershare Trust Company, N.A."
},
{
"role": "Special Servicer",
"name": "Rialto Capital Advisors"
},
{
"role": "Operating Advisor",
"name": "Pentalpha Surveillance"
},
{
"role": "Master Servicer",
"name": "Wells Fargo Bank, National Association"
},
{
"role": "Certificate Administrator",
"name": "Wells Fargo Bank, N.A."
},
{
"role": "Depositor",
"name": "Wells Fargo Commercial Mortgage Securities, Inc."
},
{
"role": "Trustee",
"name": "Wilmington Trust, National Association"
},
{
"role": "Master Servicer",
"name": "Trimont Real Estate Advisors"
}
]
}Access the underlying datasets used to power these analytics.

CMBS Fund Holdings Dataset
Filing data from sec.gov NPORT-P to produce the Fund Holdings table.
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