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NYSE: TSLX Sixth Street Specialty Lending, Inc. 8-K

TSLX raises $300M in 5.650% senior notes due 2031 to refinance credit facility debt

Filed May 14, 2026 · Period ending May 14, 2026 · ~1 min read

4 key changes 2 high relevance 3 sections

Key Changes

  • high

    Issued $300 million of unsecured notes maturing August 2031 with 5.650% fixed interest rate, paid semiannually. Notes are direct unsecured obligations and may be redeemed early at the company's option.

  • high

    Proceeds will pay down existing revolving credit facility debt and fund new investments. This refinances shorter-term revolving debt with longer-term fixed-rate notes, extending maturity profile.

  • medium

    Notes include change-of-control protection: if TSLX is acquired and notes are downgraded below investment grade by all three major rating agencies, company must offer to repurchase at par plus accrued interest.

  • low

    BofA Securities led the underwritten public offering. U.S. Bank Trust Company serves as trustee under the supplemental indenture executed May 14, 2026.

Summary

Sixth Street Specialty Lending completed a $300 million debt offering on May 14, issuing senior unsecured notes with a 5.650% coupon maturing in 2031. This is a straightforward refinancing transaction: the company is replacing shorter-term revolving credit facility borrowings with longer-term fixed-rate debt.

For a business development company like TSLX, this type of capital raise is routine and provides more stable, predictable financing to support its lending operations. Retail investors should view this neutrally to positively. The 5.650% rate reflects current market conditions for BDC debt, and locking in fixed-rate financing for five years reduces refinancing risk compared to revolving facilities.

The change-of-control provisions offer standard noteholder protections. Watch the company's next quarterly earnings report to see how the refinancing impacts net interest margin and whether management deploys the capital into new investments as stated, which would indicate confidence in the current lending environment.

Section-by-Section Diff

Event · Item 1.01 — Entry into a Material Definitive Agreement

~500 words

Item 1.01 — Entry into a Material Definitive Agreement filed; see Key Changes for terms.

1 Added
Added Use of proceeds medium

Added in current filing · verify on EDGAR →

The Company expects to use the net proceeds of this offering to pay down debt under its revolving credit facility and for general corporate purposes, including making new investments in accordance with the Company’s investment objective and strategies.

The net proceeds from the $300 million note issuance will be used to reduce existing revolving credit facility debt and to fund new investments aligned with the Company's investment strategy. This represents a refinancing of shorter-term revolving debt with longer-term fixed-rate notes.

Event · Item 2.03 — Creation of a Direct Financial Obligation

~45 words

Company created a direct financial obligation or off-balance sheet arrangement, with details incorporated by reference from Item 1.01.

1 Added
Added Direct financial obligation or off-balance sheet arrangement high

Added in current filing · verify on EDGAR →

Item 2.03 - Creation of a Direct Financial Obligation or an Obligation Under an Off-Balance Sheet Arrangement of a Registrant The information set forth under Item 1.01 of this Form 8-K is incorporated herein by reference.

The company disclosed the creation of a direct financial obligation or an off-balance sheet arrangement under Item 2.03. The specific details of this obligation are referenced in Item 1.01 of the same 8-K filing, which is not included in the provided text. This typically indicates new debt, credit facility, guarantee, or similar financial commitment.

Event · Item 9.01 — Financial Statements and Exhibits

~200 words

Item 9.01 — Financial Statements and Exhibits filed; see Key Changes for terms.

3 Added
Added Debt issuance - 5.650% Notes Due 2031 high

Added in current filing · verify on EDGAR →

Underwriting Agreement dated May 7, 2026 by and among Sixth Street Specialty Lending, Inc., Sixth Street Specialty Lending Advisers, LLC and BofA Securities, Inc. as representative of the several underwriters named therein.

The company entered into an underwriting agreement with BofA Securities to issue new senior notes. This represents a capital raise through debt financing, expanding the company's borrowing capacity to fund lending operations or refinance existing obligations.

Added New note series - 5.650% coupon rate high

Added in current filing · verify on EDGAR →

Third Supplemental Indenture, dated as of May 14, 2026, between Sixth Street Specialty Lending, Inc. and U.S. Bank Trust Company, National Association, as Trustee.

The company executed a supplemental indenture creating a new series of notes with a 5.650% coupon maturing in 2031. This establishes the legal framework and terms for the new debt securities, including interest rate and maturity date.

Added Note form and structure medium

Added in current filing · verify on EDGAR →

Form of 5.650% Note Due 2031 (included as part of Exhibit 4.2).

The filing includes the standardized form of the new notes, documenting the specific terms and conditions that will govern each individual note certificate issued under this offering.

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Figures/quotes linked to EDGAR · Narrative written by AI · May 25, 2026 · How we verify