---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-015849"
form_type: "8-K"
ticker: "TSLX"
cik: "0001508655"
company_name: "Sixth Street Specialty Lending, Inc."
filed_at: "2024-02-15T23:59:59+00:00"
generated_at: "2026-06-06T01:10:39.987517+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# TSLX posts FY 2023 NII $2.31/sh, NAV $17.04; declares $0.46 base + $0.08 supplemental dividends

## Summary
- Full year 2023 NII per share $2.31, net income per share $2.61; Q4 NII $0.62, net income $0.58.
- NAV per share $17.04 at Dec 31, up from $16.97 at Sep 30; adjusted NAV $16.96.
- Q1 2024 base dividend $0.46/sh (record Mar 15, payable Mar 28); Q4 2023 supplemental $0.08/sh (record Feb 29, payable Mar 20). Full year 2023 total dividend $2.10/sh.
- Post-quarter issued $350M 6.125% unsecured notes due 2029; proceeds used to repay revolver; swapped to SOFR+243bps.
- Q4 new commitments $316.4M; portfolio yield 14.1% at fair value; non-accruals 0.62% of fair value.

## SEC filing metadata
- accession: 0000950170-24-015849
- form_type: 8-K
- ticker: TSLX
- cik: 0001508655
- company_name: Sixth Street Specialty Lending, Inc.
- filed_at: 2024-02-15T23:59:59+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/1508655/000095017024015849/0000950170-24-015849-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1508655/000095017024015849/tslx-20240215.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-015849
- JSON: https://secwatch.observer/filing/0000950170-24-015849.json
- Plain text: https://secwatch.observer/filing/0000950170-24-015849.txt

## Key facts
- Earnings Releases
  Sixth Street Specialty Lending, Inc. reported the quarter ended December 31, 2023 results: net income net income per share were $0.62 and $0.58, EPS net investment income and net income per share were $0.62 and $0.58.
  - Period: the quarter ended December 31, 2023
  - Net income: net income per share were $0.62 and $0.58
  - EPS: net investment income and net income per share were $0.62 and $0.58
  - Result: reported results
  source text: For the quarter ended December 31, 2023 net investment income and net income per share were $0.62 and $0.58, respectively.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1508655/000095017024015849/0000950170-24-015849-index.htm
- Earnings Releases
  Sixth Street Specialty Lending, Inc. reported the year ended December 31, 2023 results: net income net income of $2.61 per share, EPS net investment income of $2.31 per share and net income of $2.61 per share.
  - Period: the year ended December 31, 2023
  - Net income: net income of $2.61 per share
  - EPS: net investment income of $2.31 per share and net income of $2.61 per share
  - Result: reported results
  source text: Sixth Street Specialty Lending, Inc. (NYSE: TSLX, or the “Company”) today reported net investment income of $2.31 per share and net income of $2.61 per share, for the year ended December 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1508655/000095017024015849/0000950170-24-015849-index.htm

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