---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-264683"
form_type: "8-K"
ticker: "TSLX"
cik: "0001508655"
company_name: "Sixth Street Specialty Lending, Inc."
filed_at: "2025-11-04T23:59:59+00:00"
generated_at: "2026-05-17T00:36:27.963288+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Sixth Street Specialty Lending Q3 NII $0.54/sh; CEO Easterly to resign, Bo Stanley appointed Co-CEO

## Summary
- Q3 NII $0.54 per share ($50.7M); adjusted NII $0.53; total investment income $109.4M, vs $119.2M YoY.
- NAV per share $17.14 at Sep 30, 2025 vs $17.17 at Jun 30; weighted average yield on debt at fair value 11.4%.
- Declared Q4 base dividend $0.46/sh payable Dec 31, 2025 to holders of record Dec 15; Q3 supplemental $0.03/sh payable Dec 19.
- Joshua Easterly to resign as CEO effective Dec 31, 2025; remains Chairman. Robert (Bo) Stanley appointed Co-CEO and to Board, will become sole CEO.
- Board amended bylaws to increase maximum directors from 10 to 15; size increased to 11.

## SEC filing metadata
- accession: 0001193125-25-264683
- form_type: 8-K
- ticker: TSLX
- cik: 0001508655
- company_name: Sixth Street Specialty Lending, Inc.
- filed_at: 2025-11-04T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.02, 5.02, 5.03, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1508655/000119312525264683/0001193125-25-264683-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1508655/000119312525264683/tslx-20251104.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-264683
- JSON: https://secwatch.observer/filing/0001193125-25-264683.json
- Plain text: https://secwatch.observer/filing/0001193125-25-264683.txt

## Key facts
- Governance Changes
  Sixth Street Specialty Lending, Inc.: Board amended and restated bylaws to increase maximum board size from 10 to 15 and to increase current board from 10 to 11 directors (effective 2025-11-04).
  - Change: bylaw amendment
  - Effective: 2025-11-04
  source text: On November 4, 2025, the Board amended and restated the Company’s Bylaws, effective as of that date, to increase the maximum number of members of the Board from ten (10) to fifteen (15) and to increase the number of directors serving on the Board from ten (10) to eleven (11).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1508655/000119312525264683/0001193125-25-264683-index.htm

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