GS Mortgage Securities Trust 2016-GS4 Annual Report - How They Did This Year

1. What does this company do and how did they perform this year?

Okay, first things first. GS Mortgage Securities Trust 2016-GS4 is not a typical company selling products or services. It's a Commercial Mortgage-Backed Securities (CMBS) trust. This trust holds many commercial mortgage loans. Imagine it as a large collection of loans. These loans are backed by properties that generate income. The trust sells different types of investments, called securities or bonds, to investors. Payments from the commercial mortgage loans then go directly to these bondholders. So, the trust itself doesn't "make money" like a regular business. It simply passes along the cash from the loans.

The trust started in 2016 with a diverse group of commercial mortgage loans. For instance, it held loans for shopping centers (like Simon Premium Outlets, 6.5% of the initial total). It also had loans for hotels (like Residence Inn and SpringHill Suites North Shore, 2.1%). Industrial properties (like the U.S. Industrial Portfolio, 7.3%) were also included. These figures show the trust's original mix of properties.

The trust's "performance" depends on how well its mortgage loans are doing. Are borrowers paying on time? Are properties holding their value? This annual report (Form 10-K) covers the year ending December 31, 2025. It mainly focuses on the trust's structure. It also details how various parties, like Wells Fargo and Midland Loan Services, manage and service these loans. For a CMBS trust, the 10-K shows details about the loans, their servicing, and regulatory compliance. It does not provide typical company financial statements.

CMBS trusts are pass-through entities; they don't earn profit like a regular company. This report focuses on the trust's operational structure and compliance. It lists the many companies that handle the loans, ensuring smooth operations and adherence to regulations. Think of it as the trust's "plumbing" — its operations and compliance. This report focuses on managing the loan portfolio.

We received Wells Fargo's "Annual Statement of Compliance." Brian Murdock, a Managing Director, signed it on March 10, 2026. This statement covers Wells Fargo's servicing from January 1 to February 28, 2025. This period is shorter than the 10-K's full fiscal year (ending December 31, 2025). Still, it offers key insight into Wells Fargo's adherence to procedures during part of the year. Wells Fargo certified they reviewed their activities. They fulfilled all obligations under Servicing Agreements for transactions in "Schedule I." However, our trust, GS Mortgage Securities Trust 2016-GS4, is not specifically named in "Schedule I." This offers general assurance about Wells Fargo's servicing. It's still highly relevant to how this trust's loans are handled. Wells Fargo is a key servicer for CMBS transactions. For added confidence, KPMG LLP, an independent accounting firm, reviewed Wells Fargo's compliance. They approved it, validating the servicer's processes externally.

2. Financial health - cash, debt, liquidity

Here's what we learned about the trust's structure and financial health:

• No Outside Guarantees: The trust's certificates lack extra support from other companies. There are no external credit enhancements. These outside guarantees can be bond insurance, letters of credit, or third-party promises. They aim to cover losses before affecting top-tier bondholders. Without these, the trust's certificates depend solely on the mortgage loans' performance. Their financial strength and credit quality are tied to these loans. If loans struggle, no outside party guarantees payments. Investors are directly exposed to the properties' performance.
• Diverse Borrowers: No single borrower (or "obligor") holds more than 10% of the trust's total loans. This is a key structural feature. This is good for financial health. It shows the loan pool is diversified. The trust doesn't rely too much on one large loan or borrower's stability. If one borrower defaults, the impact on the trust's cash flow and payments is less severe. This differs from trusts with many loans from one borrower.
• No Complex Instruments: The trust does not use "derivatives" to back its certificates. These are complex financial tools. This simplifies the trust's structure. It also lowers risks from volatility and counterparty issues often linked to derivatives. Derivatives can hedge risks. But their absence here means a simple pass-through system. This avoids extra financial complexity, which helps transparency and risk management.

3. Key risks that could hurt the stock price

For this CMBS trust, main risks link to its commercial mortgage loans and the wider commercial real estate market. Investors should know these inherent risks:

• Loan Payment Risk: This is the main risk. Businesses might struggle to pay their commercial mortgages. This happens due to economic slowdowns, falling property performance, or borrower financial trouble. Then, the trust's ability to pay certificate holders suffers. Defaults cause losses if a foreclosed property's value is too low. It might not cover the remaining loan amount.
• Individual Property Risk: How each property backing a loan performs is vital. Tenant bankruptcies, expiring leases, or local market changes can hurt properties. Physical decay of properties (like shopping centers, hotels, industrial sites) also matters. All these directly affect a borrower's ability to repay.
• Real Estate Market Risk: Wider market trends can cause issues. Too much supply in some property types, rising interest rates, or a recession are examples. These can lower property values and rental income. This increases the chance of loan defaults.
• Early Payoff Risk: Borrowers might pay off loans early. This happens if interest rates fall or they sell the property. Some CMBS loans have penalties for early payoff. But early repayment can still cut the trust's total interest income. It may force reinvestment at lower rates.
• Servicer Performance Risk: Compliance reports exist, but servicer effectiveness is key. The master servicer (like Wells Fargo) and special servicers must collect payments well. They must also manage late loans and recover money from defaulted assets. Poor servicing worsens losses.
• Selling Difficulty Risk: CMBS certificates might not be easy to sell quickly. This is especially true for smaller or less traded trusts. Investors may struggle to sell their certificates fast at a good price. This is common during stressful market times.
• Interest Rate Risk: Many CMBS loans have fixed rates. Still, changing interest rates can affect the certificates' market value. Higher rates usually lower the value of existing fixed-rate bonds.
• Concentration Risk: No single borrower holds over 10% of loans. However, risks remain if too many loans are in one property type (like retail). Or if they are in one geographic area. Downturns in those areas or sectors would then pose a risk.

4. Key Regulatory Compliance

This report strongly highlights compliance with servicing rules. These rules come from Regulation AB, an SEC guideline for asset-backed securities. This means a big focus is on ensuring all parties follow rules. Servicers and trustees managing these loans must follow procedures correctly. The document lists many entities servicing specific loans. This shows the complex regulatory environment for these trusts.

What we learned about servicing compliance: We got Wells Fargo's "Annual Statement of Compliance." Brian Murdock, Managing Director, signed it on March 10, 2026. This statement covers Wells Fargo's operations from January 1 to February 28, 2025. This partial-year report is in the 10-K filing for 2025. It shows servicer adherence during the fiscal year's first months.

• Wells Fargo's Self-Assessment: Wells Fargo certified two key things in this statement. These are vital for investor confidence and following regulations:
  1. They reviewed their activities and performance. This covered January 1 to February 28, 2025, under Servicing Agreements. This internal review is key for Regulation AB compliance.
  2. Based on that review, Wells Fargo believes it met all its obligations. This applies to the Servicing Agreements in all important ways. This assures investors the servicer met its duties. They use outside vendors for tasks like tax payments. Wells Fargo oversees these vendors. They found no major compliance issues or monitoring problems. This shows strong oversight, even for outsourced work.
• General, Not Specific: This statement covers many Wells Fargo transactions. It's relevant to how this trust's loans are handled. But our trust, GS Mortgage Securities Trust 2016-GS4, is not explicitly named in "Schedule I." This offers general assurance about the servicer's processes. It's not a direct update for our trust. Still, it provides comfort that Wells Fargo's operations are sound.
• Independent Check by KPMG: Here's an extra layer of assurance! KPMG LLP, an independent accounting firm, reviewed Wells Fargo's self-assessment. KPMG, as an independent third party, examined Wells Fargo's claim. They checked if Wells Fargo followed all servicing rules for its loans. This covered January 1 to February 28, 2025. This independent audit is vital for Regulation AB. It externally validates the servicer's internal controls and compliance.
  • KPMG's Opinion: After review, KPMG found Wells Fargo's compliance assertion "fairly stated." This means it was correct in all important ways. This "clean opinion" from an independent auditor means Wells Fargo's claim is reliable. They complied with servicing rules, based on KPMG's review. So, an outside expert believes Wells Fargo is servicing correctly. This indirectly helps all trusts they service, including our trust.
  • Scope Details: KPMG's report noted some servicing rules were "not applicable" to Wells Fargo's activities. For example, if no loan changes happened, those rules didn't apply. Wells Fargo uses outside vendors for tasks like tax payments. They ensure these vendors follow the rules. SEC guidance allows this practice. KPMG didn't check Wells Fargo's vendor eligibility. But they confirmed Wells Fargo's overall compliance for applicable rules.