---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-051245"
form_type: "8-K"
ticker: "TSLX"
cik: "0001508655"
company_name: "Sixth Street Specialty Lending, Inc."
filed_at: "2024-05-01T23:59:59+00:00"
generated_at: "2026-06-03T02:43:24.511000+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# TSLX Q1 net investment income $0.59/share; NAV $17.17; declares base $0.46 + supplemental $0.06

## Summary
- Net investment income $52.4M ($0.59/share); adjusted $0.58; net income $47.5M ($0.53/share).
- Investment income $117.8M, up 22% YoY; weighted average yield on debt portfolio 13.8% at fair value.
- NAV per share $17.17 at March 31, 2024 vs $17.04 at Dec 31, 2023; adjusted NAV $17.11.
- Declared Q2 base dividend $0.46/share (record 6/14, pay 6/28) and Q1 supplemental $0.06/share (record 5/31, pay 6/20).
- Portfolio: $3.38B fair value, 92.3% first-lien, 99.6% floating rate; non-accrual 1.1% of fair value.

## SEC filing metadata
- accession: 0000950170-24-051245
- form_type: 8-K
- ticker: TSLX
- cik: 0001508655
- company_name: Sixth Street Specialty Lending, Inc.
- filed_at: 2024-05-01T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1508655/000095017024051245/0000950170-24-051245-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1508655/000095017024051245/tslx-20240501.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-051245
- JSON: https://secwatch.observer/filing/0000950170-24-051245.json
- Plain text: https://secwatch.observer/filing/0000950170-24-051245.txt

## Key facts
- Earnings Releases
  Sixth Street Specialty Lending, Inc. reported first quarter ended March 31, 2024 results: net income $0.53 per share.
  - Period: first quarter ended March 31, 2024
  - Net income: $0.53 per share
  - Result: reported results
  source text: Sixth Street Specialty Lending, Inc. (NYSE: TSLX, or the “Company”) today reported net investment income of $0.59 per share and net income of $0.53 per share for the first quarter ended March 31, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1508655/000095017024051245/0000950170-24-051245-index.htm

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