Main Street Capital Corporation
US ˙ NYSE ˙ US56035L1044

SecurityMAIN / Main Street Capital Corporation
InstitutionUs Bancorp \de\
Latest Disclosed Ownership4,704 shares
Latest Disclosed Value $ 249,123
Us Bancorp \de\ reports 0.34% increase in ownership of MAIN / Main Street Capital Corporation

On May 14, 2026 - Us Bancorp \de\ filed a 13F-HR form disclosing ownership of 4,704 shares of Main Street Capital Corporation (US:MAIN) valued at $249,124 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 4,688 shares of Main Street Capital Corporation. This represents a change in shares of 0.34% during the quarter. The current value of the position is $244,702 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.

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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)
2026-05-14 2026-03-31 13F MAIN STR CAP COM 56035L104 4,704 16 0.34 249 -12.01 0.0001
2026-01-30 2025-12-31 13F MAIN STR CAP COM 56035L104 4,688 679 16.94 283 11.42 0.0003
2025-11-12 2025-09-30 13F MAIN STR CAP COM 56035L104 4,009 -61 -1.50 255 5.83 0.0003
2025-07-24 2025-06-30 13F MAIN STR CAP COM 56035L104 4,070 1,248 44.22 241 50.94 0.0003
2025-05-08 2025-03-31 13F MAIN STR CAP COM 56035L104 2,822 243 9.42 160 5.30 0.0002
2025-02-05 2024-12-31 13F MAIN STR CAP COM 56035L104 2,579 200 8.41 151 26.89 0.0002
2024-10-28 2024-09-30 13F MAIN STR CAP COM 56035L104 2,379 -122 -4.88 119 -5.56 0.0002
2024-08-07 2024-06-30 13F MAIN STR CAP COM 56035L104 2,501 -202 -7.47 126 -0.79 0.0002
2024-05-08 2024-03-31 13F MAIN STR CAP COM 56035L104 2,703 1,343 98.75 128 118.97 0.0002
2024-02-09 2023-12-31 13F MAIN STR CAP COM 56035L104 1,360 -198 -12.71 59 -7.94 0.0001
2023-11-03 2023-09-30 13F MAIN STR CAP COM 56035L104 1,558 1,163 294.43 63 320.00 0.0001
2023-08-10 2023-06-30 13F MAIN STR CAP COM 56035L104 395 -21 -5.05 16 -6.25 0.0000
2023-05-09 2023-03-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 416 268 181.08 16 220.00 0.0000
2023-02-13 2022-12-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 148 -96 -39.34 5 -37.50 0.0000
2022-10-27 2022-09-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 244 137 128.04 8 100.00 0.0000
2022-08-01 2022-06-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 107 -154 -59.00 4 -63.64 0.0000
2022-05-11 2022-03-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 261 0 0.00 11 -8.33 0.0000
2022-02-11 2021-12-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 261 -16 -5.78 12 9.09 0.0000
2021-11-10 2021-09-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 277 16 6.13 11 0.00 0.0000
2021-08-05 2021-06-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 261 -347 -57.07 11 -54.17 0.0000
2021-04-28 2021-03-31 13F MAIN STREET CAPITAL COMMON STOCK 56035L104 608 321 111.85 24 166.67 0.0000
2021-02-04 2020-12-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 287 0 0.00 9 12.50 0.0000
2020-11-10 2020-09-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 287 -100 -25.84 8 -33.33 0.0000
2020-08-07 2020-06-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 387 -102 -20.86 12 20.00 0.0000
2020-05-13 2020-03-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 489 -1,525 -75.72 10 -88.51 0.0000
2020-02-04 2019-12-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 2,014 -26 -1.27 87 -1.14 0.0002
2019-11-08 2019-09-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 2,040 -2,474 -54.81 88 -52.69 0.0002
2019-08-13 2019-06-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 4,514 -100 -2.17 186 8.14 0.0005
2019-05-08 2019-03-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 4,614 1,961 73.92 172 91.11 0.0005
2019-02-13 2018-12-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 2,653 -321 -10.79 90 -21.05 0.0003
2018-10-31 2018-09-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 2,974 321 12.10 114 12.87 0.0003
2018-08-08 2018-06-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 2,653 -269 -9.21 101 -6.48 0.0003
2018-05-08 2018-03-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 2,922 -732 -20.03 108 -25.52 0.0003
2018-02-02 2017-12-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 3,654 501 15.89 145 16.00 0.0004
2017-11-13 2017-09-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 3,153 -554 -14.94 125 -12.59 0.0004
2017-07-19 2017-06-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 3,707 500 15.59 143 16.26 0.0005
2017-05-03 2017-03-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 3,207 549 20.65 123 25.51 0.0004
2017-02-08 2016-12-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 2,658 -639 -19.38 98 -13.27 0.0004
2016-11-04 2016-09-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 3,297 -6,605 -66.70 113 -65.23 0.0004
2016-08-10 2016-06-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 9,902 4,561 85.40 325 93.45 0.0012
2016-05-13 2016-03-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 5,341 -403 -7.02 168 0.60 0.0007
2016-02-10 2015-12-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 5,744 -4,601 -44.48 167 -39.49 0.0007
2015-11-16 2015-09-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 10,345 763 7.96 276 -9.80 0.0012
2015-08-10 2015-06-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 9,582 297 3.20 306 6.62 0.0012
2015-05-08 2015-03-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 9,285 2,018 27.77 287 35.38 0.0011
2015-02-13 2014-12-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 7,267 5,767 384.47 212 360.87 0.0008
2014-11-14 2014-09-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 1,500 700 87.50 46 76.92 0.0002
2014-08-14 2014-06-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 800 0 0.00 26 0.00 0.0001
2014-05-14 2014-03-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 800 430 116.22 26 116.67 0.0001
2014-02-13 2013-12-31 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 370 256 224.56 12 300.00 0.0000
2013-11-07 2013-09-30 13F MAIN STREET CAPITAL CORP CL C COMMON STOCK 56035L104 114 114 3 0.0000
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.