---
schema_version: "secwatch.filing_event.v1"
accession: "0001396440-25-000042"
form_type: "8-K"
ticker: "MAIN"
cik: "0001396440"
company_name: "Main Street Capital CORP"
filed_at: "2025-04-10T23:59:59+00:00"
generated_at: "2026-05-23T17:09:29.701349+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Main Street Q1 2025 private loan commitments $130.4M; portfolio at $2.0B cost

## Summary
- Originated or increased commitments of $130.4M; funded $138.2M in Q1 2025.
- Notable new investment: $55.4M first lien loan to datacenter power solutions firm.
- Private loan portfolio totaled ~$2.0B at cost across 90 companies as of March 31.
- 94.7% of portfolio invested in first lien debt; 5.3% in equity/other securities.
- Activity focused on datacenters, energy, automotive, and healthcare end markets.

## SEC filing metadata
- accession: 0001396440-25-000042
- form_type: 8-K
- ticker: MAIN
- cik: 0001396440
- company_name: Main Street Capital CORP
- filed_at: 2025-04-10T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1396440/000139644025000042/0001396440-25-000042-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1396440/000139644025000042/main-20250410.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001396440-25-000042
- JSON: https://secwatch.observer/filing/0001396440-25-000042.json
- Plain text: https://secwatch.observer/filing/0001396440-25-000042.txt

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