MSCA — Main Str Cap Corp Institutional Holders · Q2 2026
Who owns Main Str Cap Corp (MSCA)? 3 institutions reported holding $6.34M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: IMC-Chicago, LLC ($4.6M), Simplex Trading, LLC ($1.6M), Group One Trading LLC ($202,332).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $4.6M | 88,000 | Added |
| 2 | SIMPLEX TRADING, LLC | $1.6M | 30,400 | Trimmed |
| 3 | GROUP ONE TRADING LLC | $202,332 | 3,900 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30