---
schema_version: "secwatch.filing_event.v1"
accession: "0001396440-24-000078"
form_type: "8-K"
ticker: "MAIN"
cik: "0001396440"
company_name: "Main Street Capital CORP"
filed_at: "2024-05-09T23:59:59+00:00"
generated_at: "2026-06-02T05:18:54.350746+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Main Street Q1 NII $1.05/share, DNII $1.11/share; NAV per share record $29.54

## Summary
- Total investment income $131.6M (+9% YoY); NII $89.8M ($1.05/share) and DNII $94.4M ($1.11/share).
- NAV per share $29.54, up 1.2% from Q4 2023; ROE 17.2% annualized for Q1, 19.3% trailing 12 months.
- Regular monthly dividends increased 6.7% to $0.24/month for Q2 2024; supplemental dividend $0.30/share declared.
- Portfolio growth: LMM net +$67M, private loan net +$54.9M, middle market net -$21.9M; issued $350M 6.95% notes due 2029.
- Non-accrual investments only 0.5% of portfolio at fair value; cost efficiency ratio 1.3% annualized.

## SEC filing metadata
- accession: 0001396440-24-000078
- form_type: 8-K
- ticker: MAIN
- cik: 0001396440
- company_name: Main Street Capital CORP
- filed_at: 2024-05-09T23:59:59+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/1396440/000139644024000078/0001396440-24-000078-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1396440/000139644024000078/main-20240509.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001396440-24-000078
- JSON: https://secwatch.observer/filing/0001396440-24-000078.json
- Plain text: https://secwatch.observer/filing/0001396440-24-000078.txt

## Key facts
- Earnings Releases
  Main Street Capital CORP reported the first quarter ended March 31, 2024 results: revenue Total investment income of $131.6 million, net income Net investment income of $89.8 million (or $1.05 per share), EPS $1.05 per share.
  - Period: the first quarter ended March 31, 2024
  - Revenue: Total investment income of $131.6 million
  - Net income: Net investment income of $89.8 million (or $1.05 per share)
  - EPS: $1.05 per share
  - Result: reported results
  source text: • Net investment income of $89.8 million (or $1.05 per share) • Distributable net investment income (1) of $94.4 million (or $1.11 per share) • Total investment income of $131.6 million • An industry leading position in cost efficiency, with a ratio of total non-interest operating expenses as a percentage of quarterly average total assets (“Operating Expenses to
  evidence_url: https://www.sec.gov/Archives/edgar/data/1396440/000139644024000078/0001396440-24-000078-index.htm

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