// company-profile
Main Street Capital CORP
MAINExchangeNYSEInc.MDFilings434Insiders13
// api This Main Street Capital CORP insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Main Street Capital CORP insiders bought $330K (12 transactions) and sold $1.2M (1 transaction).
- Most active insider: FOSTER VINCENT D with 8 transactions totaling $158K.
- Largest single sale: $1.2M by Magdol David L. on Apr 1, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Main Street Capital CORP as of 2026-03-31
Total reported AUM
$980.3M
QoQ change
-4.8%
Reporting period
2026-03-31
#1
UBS Group AG
CIK 1610520
$68.9M
1.3M shares
#2
Legal & General Group Plc
CIK 764068
$41.5M
784K shares
#3
MORGAN STANLEY
CIK 895421
$30.6M
579K shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 18, 2026 | FOSTER VINCENT D | MAIN | Gift | 35,500 | $0.00 | $0K |
| May 18, 2026 | FOSTER VINCENT D | MAIN | Gift | 35,500 | $0.00 | $0K |
| May 18, 2026 | FOSTER VINCENT D | MAIN | Gift | 71,000 | $0.00 | $0K |
| May 15, 2026 | FOSTER VINCENT D | MAIN | J | 14.49 | $50.69 | $1K |
| May 15, 2026 | McHugh Ryan | MAIN | J | 34.824 | $50.69 | $2K |
45 more transactions hidden
Free account · No credit card required
Building something? Get API access →
Popular companies on Form4API
Browse insider trading activity for other actively-filed companies.