---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-224000"
form_type: "8-K"
ticker: "TSLX"
cik: "0001508655"
company_name: "Sixth Street Specialty Lending, Inc."
filed_at: "2026-05-14T20:08:13+00:00"
generated_at: "2026-05-14T20:58:40.705725+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Sixth Street Specialty Lending issues $300M of 5.650% notes due 2031

## Summary
- Issued $300M aggregate principal of 5.650% notes maturing August 15, 2031.
- Interest payable semiannually at 5.650%, first payment February 15, 2027.
- Notes are unsecured; redeemable at company's option at specified prices.
- Net proceeds to repay revolving credit facility and for general corporate purposes.
- Offering closed May 14, 2026; underwritten by BofA Securities and others.

## SEC filing metadata
- accession: 0001193125-26-224000
- form_type: 8-K
- ticker: TSLX
- cik: 0001508655
- company_name: Sixth Street Specialty Lending, Inc.
- filed_at: 2026-05-14T20:08:13+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 2.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1508655/000119312526224000/0001193125-26-224000-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1508655/000119312526224000/d553028d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-224000
- JSON: https://secwatch.observer/filing/0001193125-26-224000.json
- Plain text: https://secwatch.observer/filing/0001193125-26-224000.txt

## Key facts
- Debt Financings
  Sixth Street Specialty Lending, Inc. incurred senior notes of $300,000,000 aggregate principal amount with U.S. Bank Trust Company, National Association at 5.650% maturing August 15, 2031.
  - Instrument: senior notes
  - Principal: $300,000,000 aggregate principal amount
  - Counterparty: U.S. Bank Trust Company, National Association
  - Rate: 5.650%
  - Maturity: August 15, 2031
  - Event: incurrence
  source text: the Company and the Trustee (the “Base Indenture”; and together with the Third Supplemental Indenture, the “Indenture”), relating to the Company’s issuance, offer and sale of $ 300,000,000 aggregate principal amount of its 5.650% notes due 2031 (the “Notes”). The Notes will mature on August 15, 2031 and may be redeemed in whole or in part at the Company’s option at
  evidence_url: https://www.sec.gov/Archives/edgar/data/1508655/000119312526224000/0001193125-26-224000-index.htm
- Material Agreements
  Sixth Street Specialty Lending, Inc. entered into Third Supplemental Indenture with U.S. Bank Trust Company, National Association valued at $300,000,000 aggregate principal amount (effective 2026-05-14).
  - Action: entry
  - Agreement: notes offering
  - Counterparty: U.S. Bank Trust Company, National Association
  - Value: $300,000,000 aggregate principal amount
  - Effective: 2026-05-14
  source text: On May 14, 2026, Sixth Street Specialty Lending, Inc. (the “Company”) and U.S. Bank Trust Company, National Association (the “Trustee”), entered into a Third Supplemental Indenture (the “Third Supplemental Indenture”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/1508655/000119312526224000/0001193125-26-224000-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.