---
schema_version: "secwatch.filing_event.v1"
accession: "0001564590-23-007071"
form_type: "8-K"
ticker: "TSLX"
cik: "0001508655"
company_name: "Sixth Street Specialty Lending, Inc."
filed_at: "2023-05-08T23:59:59+00:00"
generated_at: "2026-06-15T13:00:08.489747+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# TSLX Q1 net investment income $0.53/sh (adj $0.55), NAV $16.59; declares $0.46 base + $0.04 supplemental

## Summary
- Q1 2023 net investment income $42.8M ($0.53/sh); adjusted NII $44.6M ($0.55/sh).
- Net income $52.8M ($0.65/sh); adjusted net income $54.6M ($0.67/sh).
- NAV per share $16.59, up from $16.48 at Dec 31, 2022 (adjusted $16.55 incl supplemental).
- Declared Q2 base dividend $0.46/sh (payable June 30) and Q1 supplemental $0.04/sh (payable June 20).
- Weighted average yield on debt investments at fair value 13.9% (13.5% prior Q); 99.2% floating-rate.

## SEC filing metadata
- accession: 0001564590-23-007071
- form_type: 8-K
- ticker: TSLX
- cik: 0001508655
- company_name: Sixth Street Specialty Lending, Inc.
- filed_at: 2023-05-08T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1508655/000156459023007071/0001564590-23-007071-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1508655/000156459023007071/tslx-8k_20230508.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001564590-23-007071
- JSON: https://secwatch.observer/filing/0001564590-23-007071.json
- Plain text: https://secwatch.observer/filing/0001564590-23-007071.txt

## Key facts
- Earnings Releases
  Sixth Street Specialty Lending, Inc. reported the first quarter ended March 31, 2023 results: net income net income of $0.65 per share, EPS $0.65 per share.
  - Period: the first quarter ended March 31, 2023
  - Net income: net income of $0.65 per share
  - EPS: $0.65 per share
  - Result: reported results
  source text: Sixth Street Specialty Lending, Inc. (NYSE: TSLX, or the “Company”) today reported net investment income of $0.53 per share and net income of $0.65 per share for the first quarter ended March 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1508655/000156459023007071/0001564590-23-007071-index.htm

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