Main Street Capital Corporation
US ˙ NYSE ˙ US56035L1044

SecurityMAIN / Main Street Capital Corporation
InstitutionMutual Advisors, LLC
Latest Disclosed Ownership9,033 shares
Latest Disclosed Value $ 478,376
Mutual Advisors, LLC reports 19.12% decrease in ownership of MAIN / Main Street Capital Corporation

On May 1, 2026 - Mutual Advisors, LLC filed a 13F-HR form disclosing ownership of 9,033 shares of Main Street Capital Corporation (US:MAIN) valued at $478,388 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 11,169 shares of Main Street Capital Corporation. This represents a change in shares of -19.12% during the quarter. The current value of the position is $469,897 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-01 2026-03-31 13F MAIN STR CAP COM 56035L104 9,033 -2,136 -19.12 478 -29.08 0.0102
2026-02-02 2025-12-31 13F MAIN STR CAP COM 56035L104 11,169 2,396 27.31 674 33.47 0.0145
2025-11-04 2025-09-30 13F MAIN STR CAP COM 56035L104 8,773 -246 -2.73 506 -14.84 0.0111
2025-07-28 2025-06-30 13F MAIN STR CAP COM 56035L104 9,019 -1,310 -12.68 594 6.08 0.0148
2025-04-28 2025-03-31 13F MAIN STR CAP COM 56035L104 10,329 -3,010 -22.57 559 -30.65 0.0160
2025-01-17 2024-12-31 13F MAIN STR CAP COM 56035L104 13,339 -1,124 -7.77 807 7.75 0.0234
2024-10-25 2024-09-30 13F MAIN STR CAP COM 56035L104 14,463 477 3.41 748 4.91 0.0219
2024-07-30 2024-06-30 13F MAIN STR CAP COM 56035L104 13,986 -1,923 -12.09 714 -5.19 0.0215
2024-05-02 2024-03-31 13F MAIN STR CAP COM 56035L104 15,909 646 4.23 753 14.11 0.0241
2024-01-12 2023-12-31 13F MAIN STR CAP COM 56035L104 15,263 -10,018 -39.63 660 -35.83 0.0230
2023-11-13 2023-09-30 13F MAIN STR CAP COM 56035L104 25,281 -915 -3.49 1,027 -2.00 0.0401
2023-07-31 2023-06-30 13F MAIN STR CAP COM 56035L104 26,196 -13,212 -33.53 1,049 -32.60 0.0398
2023-04-11 2023-03-31 13F MAIN STR CAP COM 56035L104 39,408 9,970 33.87 1,555 43.05 0.0638
2023-01-12 2022-12-31 13F MAIN STR CAP COM 56035L104 29,438 7,389 33.51 1,088 46.50 0.0487
2022-11-03 2022-09-30 13F MAIN STR CAP COM 56035L104 22,049 16,149 273.71 742 226.87 0.0382
2022-08-15 2022-06-30 13F MAIN STR CAP COM 56035L104 5,900 273 4.85 227 -5.42 0.0150
2022-05-09 2022-03-31 13F MAIN STR CAP COM 56035L104 5,627 -34 -0.60 240 -5.51 0.0134
2022-02-14 2021-12-31 13F MAIN STR CAP COM 56035L104 5,661 -115 -1.99 254 7.17 0.0134
2021-11-15 2021-09-30 13F MAIN STR CAP COM 56035L104 5,776 773 15.45 237 15.05 0.0140
2021-08-12 2021-06-30 13F MAIN STR CAP COM 56035L104 5,003 5,003 206 0.0122
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.