---
schema_version: "secwatch.filing_event.v1"
accession: "0001396440-25-000179"
form_type: "8-K"
ticker: "MAIN"
cik: "0001396440"
company_name: "Main Street Capital CORP"
filed_at: "2025-11-07T23:59:59+00:00"
generated_at: "2026-05-16T23:00:58.079108+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Main Street Q3 NII $0.97, DNII $1.03; NAV $32.78 up 1.5%; dividend +4.1%

## Summary
- NII $86.5M ($0.97/sh) vs $84.4M ($0.96) in Q3 2024; DNII $92.7M ($1.03/sh)
- NAV $32.78/sh, up $0.48 from Q2 2025; annualized ROE 17.0%
- Regular monthly dividends $0.765 for Q4 2025 (+4.1% YoY); $0.30 supplemental paid
- $106.2M LMM and $113.3M private loan investments; issued $350M 5.40% notes due 2028
- Operating expense ratio 1.4% annualized; non-accrual 1.2% of portfolio fair value

## SEC filing metadata
- accession: 0001396440-25-000179
- form_type: 8-K
- ticker: MAIN
- cik: 0001396440
- company_name: Main Street Capital CORP
- filed_at: 2025-11-07T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1396440/000139644025000179/0001396440-25-000179-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1396440/000139644025000179/main-20251106.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001396440-25-000179
- JSON: https://secwatch.observer/filing/0001396440-25-000179.json
- Plain text: https://secwatch.observer/filing/0001396440-25-000179.txt

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