---
schema_version: "secwatch.filing_event.v1"
accession: "0001396440-25-000045"
form_type: "8-K"
ticker: "MAIN"
cik: "0001396440"
company_name: "Main Street Capital CORP"
filed_at: "2025-04-16T23:59:59+00:00"
generated_at: "2026-05-23T13:17:36.024338+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Main Street Capital Q1 prelim NII $1.00-$1.02, NAV up to $32.00-$32.06 per share

## Summary
- Estimated Q1 2025 NII $1.00-$1.02 per share; DNII $1.06-$1.08 per share.
- NAV per share $32.00-$32.06, up 1.1%-1.3% from Dec 31, 2024, after $0.30 supplemental dividend.
- Estimated quarterly annualized ROE over 16% for Q1 2025.
- Non-accrual investments 1.7% at fair value, 4.5% at cost as of March 31, 2025.
- LMM portfolio net increase $57.3M; private loan net +$25.6M; middle market net -$44.2M.

## SEC filing metadata
- accession: 0001396440-25-000045
- form_type: 8-K
- ticker: MAIN
- cik: 0001396440
- company_name: Main Street Capital CORP
- filed_at: 2025-04-16T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1396440/000139644025000045/0001396440-25-000045-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1396440/000139644025000045/main-20250416.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001396440-25-000045
- JSON: https://secwatch.observer/filing/0001396440-25-000045.json
- Plain text: https://secwatch.observer/filing/0001396440-25-000045.txt

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