---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-063983"
form_type: "8-K"
ticker: "TSLX"
cik: "0001508655"
company_name: "Sixth Street Specialty Lending, Inc."
filed_at: "2026-02-23T23:59:59+00:00"
generated_at: "2026-05-16T01:07:58.604454+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Joshua Easterly to retire as Chairman and Co-CIO; Bo Stanley named Co-CIO of Adviser

## Summary
- Joshua Easterly not seeking re-election at May 21, 2026 Annual Meeting; will retire from Sixth Street effective June 30, 2026.
- Bo Stanley named Co-Chief Investment Officer of the Adviser; Easterly steps down as Co-CIO as of June 30, 2026.
- Investment team continues under Stanley, Co-Head Michael Griffin, and Co-Founding Partner Alan Waxman; no disagreement cited.
- Easterly will continue as Chairman of the Board until the Annual Meeting; Board to appoint successor Chairman.
- Internal letter from CEO Stanley expresses confidence in platform and team.

## SEC filing metadata
- accession: 0001193125-26-063983
- form_type: 8-K
- ticker: TSLX
- cik: 0001508655
- company_name: Sixth Street Specialty Lending, Inc.
- filed_at: 2026-02-23T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1508655/000119312526063983/0001193125-26-063983-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1508655/000119312526063983/d53156d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-063983
- JSON: https://secwatch.observer/filing/0001193125-26-063983.json
- Plain text: https://secwatch.observer/filing/0001193125-26-063983.txt

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