MAIN
Main Street Capital Corporation · Financial Services · Asset Management
Momentum inputs (comparable managers):
holder breadth +30.0% ·
share flow +11.7% ·
net new positions +20.0%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 75 | +1 | 12.83M | $665.80M | +6 | −6 |
| Q1 2026 | 76 | -1 | 12.95M | $685.46M | +7 | −8 |
| Q4 2025 | 77 | 0 | 12.77M | $771.46M | +1 | −1 |
| Q3 2025 | 12 | 0 | 5.16M | $328.02M | +1 | −1 |
| Q2 2025 | 9 | -1 | 4.70M | $277.74M | +1 | −2 |
| Q1 2025 | 8 | +5 | 3.91M | $221.20M | +5 | — |
| Q4 2024 | 3 | -1 | 3.50M | $205.02M | — | −1 |
| Q3 2024 | 4 | +1 | 3.54M | $177.44M | +1 | — |
| Q2 2024 | 3 | — | 3.54M | $178.87M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | T. Rowe Price ✦ | 3.19M | -6.7% | $180.35M | 0.0% | ▼ Trim | 4 | SEC ↗ ×2 |
| 2 | Capital World Investors ✦ | 210.34K | New | $11.90M | 0.0% | New | 1 | SEC ↗ |
| 3 | Two Sigma Investments ✦ | 175.00K | +355.0% | $9.90M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | Marshall Wace ✦ | 156.97K | New | $8.88M | 0.0% | New | 1 | SEC ↗ ×3 |
| 5 | Citadel Advisors ✦ | 138.77K | +229.2% | $7.85M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 6 | Millennium Management ✦ | 19.16K | New | $1.08M | 0.0% | New | 1 | SEC ↗ |
| 7 | Norges Bank ✦ (passive) | 13.56K | New | $766,727 | 0.0% | New | 1 | SEC ↗ |
| 8 | D. E. Shaw & Co. ✦ | 8.31K | New | $470,240 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Capital World Investors | $11.90M | 0.0% |
| Marshall Wace | $8.88M | 0.0% |
| Millennium Management | $1.08M | 0.0% |
| Norges Bank | $766,727 | 0.0% |
| D. E. Shaw & Co. | $470,240 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 423 holders, 23.07M shares, $930.43M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
Officer · VP, CAO & Assistant… · 2.05K sh @ 59.04 · $121,032
Officer · VP, CAO & Assistant… · 500 sh @ 59.09 · $29,545
Open-market sales (S)
Officer · 35.00K sh · $2.05M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology