---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-008558"
form_type: "8-K"
ticker: "TSLX"
cik: "0001508655"
company_name: "Sixth Street Specialty Lending, Inc."
filed_at: "2024-01-16T23:59:59+00:00"
generated_at: "2026-06-06T23:07:47.658647+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Sixth Street Specialty Lending issues $350M of 6.125% notes due 2029

## Summary
- $350M aggregate principal of 6.125% notes due March 1, 2029; interest payable semiannually.
- Notes are direct unsecured obligations; net proceeds to repay revolving credit facility.
- Change-of-control repurchase event triggers offer at 100% principal plus accrued interest.
- Offering closed January 16, 2024; underwriting agreement with BofA Securities as representative.

## SEC filing metadata
- accession: 0001193125-24-008558
- form_type: 8-K
- ticker: TSLX
- cik: 0001508655
- company_name: Sixth Street Specialty Lending, Inc.
- filed_at: 2024-01-16T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 2.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1508655/000119312524008558/0001193125-24-008558-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1508655/000119312524008558/d652899d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-008558
- JSON: https://secwatch.observer/filing/0001193125-24-008558.json
- Plain text: https://secwatch.observer/filing/0001193125-24-008558.txt

## Key facts
- Debt Financings
  Sixth Street Specialty Lending, Inc. incurred senior notes of $350,000,000 with U.S. Bank Trust Company, National Association at 6.125% per year maturing March 1, 2029.
  - Instrument: senior notes
  - Principal: $350,000,000
  - Counterparty: U.S. Bank Trust Company, National Association
  - Rate: 6.125% per year
  - Maturity: March 1, 2029
  - Event: incurrence
  source text: On January 16, 2024, Sixth Street Specialty Lending, Inc. (the “Company”) and U.S. Bank Trust Company, National Association (the “Trustee”), entered into a First Supplemental Indenture (the “First Supplemental Indenture”) to the Indenture, dated as of January 16, 2024, between the Company and the Trustee (the “Base Indenture”; and together with the First Supplemental Indenture, the “Indenture”), relating to the Company’s issuance, offer and sale of $ 350,000,000 aggregate principal amount of its 6.125% notes due 2029 (the “Notes”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1508655/000119312524008558/0001193125-24-008558-index.htm
- Material Agreements
  Sixth Street Specialty Lending, Inc. entered into First Supplemental Indenture with U.S. Bank Trust Company, National Association valued at $350,000,000 (effective 2024-01-16).
  - Action: entry
  - Agreement: notes offering
  - Counterparty: U.S. Bank Trust Company, National Association
  - Value: $350,000,000
  - Effective: 2024-01-16
  source text: On January 16, 2024, Sixth Street Specialty Lending, Inc. (the “Company”) and U.S. Bank Trust Company, National Association (the “Trustee”), entered into a First Supplemental Indenture (the “First Supplemental Indenture”) to the Indenture, dated as of January 16, 2024, between the Company and the Trustee (the “Base Indenture”; and together with the First Supplemental Indenture, the “Indenture”), relating to the Company’s issuance, offer and sale of $ 350,000,000 aggregate principal amount of its 6.125% notes due 2029 (the “Notes”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1508655/000119312524008558/0001193125-24-008558-index.htm

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