---
schema_version: "secwatch.filing_event.v1"
accession: "0001396440-25-000054"
form_type: "8-K"
ticker: "MAIN"
cik: "0001396440"
company_name: "Main Street Capital CORP"
filed_at: "2025-05-01T23:59:59+00:00"
generated_at: "2026-05-23T00:06:04.568477+00:00"
event_type: "debt"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Main Street Capital amends credit facility: lowers interest rate, extends maturity to April 2030

## Summary
- Total commitments increased from $1.110B to $1.145B; accordion feature raised to $1.718B.
- Interest rate decreased to SOFR + 0.10% plus spread of 1.775% (1.65% after step-down).
- Revolving period extended through April 2029, final maturity to April 2030.
- Option to extend both revolving period and maturity up to two additional years subject to lender approval.

## SEC filing metadata
- accession: 0001396440-25-000054
- form_type: 8-K
- ticker: MAIN
- cik: 0001396440
- company_name: Main Street Capital CORP
- filed_at: 2025-05-01T23:59:59+00:00
- event_type: debt
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 2.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1396440/000139644025000054/0001396440-25-000054-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1396440/000139644025000054/main-20250430.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001396440-25-000054
- JSON: https://secwatch.observer/filing/0001396440-25-000054.json
- Plain text: https://secwatch.observer/filing/0001396440-25-000054.txt

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