---
schema_version: "secwatch.filing_event.v1"
accession: "0001396440-25-000033"
form_type: "8-K"
ticker: "MAIN"
cik: "0001396440"
company_name: "Main Street Capital CORP"
filed_at: "2025-03-05T23:59:59+00:00"
generated_at: "2026-05-25T09:51:28.922400+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Main Street Capital authorizes up to 20M share ATM offering, 1M DRSPP shares

## Summary
- Up to 20,000,000 shares of common stock may be sold in at-the-market transactions; no obligation to sell.
- Net proceeds initially to repay outstanding Credit Facility (Corporate and SPV) debt, then re-borrow for investments.
- Equity distribution agreements with Truist, RBC, Raymond James, B. Riley; 1.0% commission on gross proceeds.
- Also filed prospectus supplement for 1,000,000 shares under existing dividend reinvestment and direct stock purchase plan.

## SEC filing metadata
- accession: 0001396440-25-000033
- form_type: 8-K
- ticker: MAIN
- cik: 0001396440
- company_name: Main Street Capital CORP
- filed_at: 2025-03-05T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1396440/000139644025000033/0001396440-25-000033-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1396440/000139644025000033/main-20250304.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001396440-25-000033
- JSON: https://secwatch.observer/filing/0001396440-25-000033.json
- Plain text: https://secwatch.observer/filing/0001396440-25-000033.txt

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