Main Street Capital Corporation
US ˙ NYSE ˙ US56035L1044

SecurityMAIN / Main Street Capital Corporation
InstitutionPrivate Advisor Group, LLC
Latest Disclosed Ownership170,310 shares
Latest Disclosed Value $ 9,019,596
Private Advisor Group, LLC reports 1.68% decrease in ownership of MAIN / Main Street Capital Corporation

On April 24, 2026 - Private Advisor Group, LLC filed a 13F-HR form disclosing ownership of 170,310 shares of Main Street Capital Corporation (US:MAIN) valued at $9,019,618 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 173,224 shares of Main Street Capital Corporation. This represents a change in shares of -1.68% during the quarter. The current value of the position is $8,859,526 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)
2026-04-24 2026-03-31 13F MAIN STR CAP COM 56035L104 170,310 -2,914 -1.68 9,020 -13.78 0.0401
2026-02-17 2025-12-31 13F MAIN STR CAP COM 56035L104 173,224 472 0.27 10,461 -4.77 0.0471
2025-11-13 2025-09-30 13F MAIN STR CAP COM 56035L104 172,752 1,831 1.07 10,985 8.75 0.0540
2025-08-11 2025-06-30 13F MAIN STR CAP COM 56035L104 170,921 13,249 8.40 10,101 13.28 0.0544
2025-05-05 2025-03-31 13F MAIN STR CAP COM 56035L104 157,672 10,718 7.29 8,918 3.59 0.0539
2025-02-03 2024-12-31 13F MAIN STR CAP COM 56035L104 146,954 12,729 9.48 8,609 27.90 0.0485
2024-10-22 2024-09-30 13F MAIN STR CAP COM 56035L104 134,225 6,758 5.30 6,730 4.58 0.0418
2024-08-05 2024-06-30 13F MAIN STR CAP COM 56035L104 127,467 9,189 7.77 6,436 15.01 0.0432
2024-04-30 2024-03-31 13F MAIN STR CAP COM 56035L104 118,278 10,543 9.79 5,596 20.14 0.0402
2024-02-06 2023-12-31 13F MAIN STR CAP COM 56035L104 107,735 -7,005 -6.11 4,657 -0.09 0.0362
2023-11-03 2023-09-30 13F MAIN STR CAP COM 56035L104 114,740 9,335 8.86 4,662 9.18 0.0417
2023-08-10 2023-06-30 13F MAIN STR CAP COM 56035L104 105,405 14,919 16.49 4,269 19.58 0.0371
2023-05-10 2023-03-31 13F MAIN STR CAP COM 56035L104 90,486 7,633 9.21 3,571 342.93 0.0341
2023-01-18 2022-12-31 13F MAIN STR CAP COM 56035L104 82,853 648 0.79 807 -70.86 0.0406
2022-10-14 2022-09-30 13F MAIN STR CAP COM 56035L104 82,205 7,812 10.50 2,766 -3.52 0.0318
2022-07-13 2022-06-30 13F MAIN STR CAP COM 56035L104 74,393 -3,171 -4.09 2,867 -13.31 0.0256
2022-05-12 2022-03-31 13F/A-1 MAIN STR CAP COM 56035L104 77,564 25,221 48.18 3,307 40.84 0.0253
2022-05-10 2022-03-31 13F MAIN STR CAP COM 56035L104 52,343 0 2,348 0.0176
2022-02-10 2021-12-31 13F MAIN STR CAP COM 56035L104 52,343 9,275 21.54 2,348 32.66 0.0176
2021-10-14 2021-09-30 13F MAIN STR CAP COM 56035L104 43,068 11,888 38.13 1,770 38.17 0.0113
2021-08-12 2021-06-30 13F MAIN STR CAP COM 56035L104 31,180 397 1.29 1,281 6.31 0.0112
2021-04-22 2021-03-31 13F MAIN STR CAP COM 56035L104 30,783 -12,788 -29.35 1,205 -14.30 0.0115
2021-04-01 2020-12-31 13F MAIN STR CAP COM 56035L104 43,571 3,921 9.89 1,406 19.97 0.0147
2020-11-02 2020-09-30 13F MAIN STR CAP COM 56035L104 39,650 -7,788 -16.42 1,172 -20.65 0.0152
2020-08-17 2020-06-30 13F MAIN STR CAP COM 56035L104 47,438 -5,274 -10.01 1,477 36.63 0.0205
2020-05-12 2020-03-31 13F MAIN STR CAP COM 56035L104 52,712 -5,787 -9.89 1,081 -57.14 0.0198
2020-02-10 2019-12-31 13F MAIN STREET CAPITAL COM 56035L104 58,499 13,321 29.49 2,522 29.20 0.0392
2019-11-13 2019-09-30 13F MAIN STREET CAPITAL COM 56035L104 45,178 9,684 27.28 1,952 33.79 0.0304
2019-08-14 2019-06-30 13F MAIN STREET CAPITAL COM 56035L104 35,494 15,157 74.53 1,459 92.73 0.0264
2019-05-13 2019-03-31 13F MAIN STREET CAPITAL COM 56035L104 20,337 -464 -2.23 757 7.68 0.0149
2019-02-08 2018-12-31 13F MAIN STREET CAPITAL COM 56035L104 20,801 2,985 16.75 703 2.48 0.0169
2018-11-01 2018-09-30 13F MAIN STREET CAPITAL COM 56035L104 17,816 4,399 32.79 686 34.25 0.0141
2018-08-09 2018-06-30 13F MAIN STREET CAPITAL COM 56035L104 13,417 1,035 8.36 511 11.82 0.0084
2018-05-09 2018-03-31 13F MAIN STREET CAPITAL COM 56035L104 12,382 4,716 61.52 457 51.83 0.0179
2018-02-07 2017-12-31 13F MAIN STREET CAPITAL COM 56035L104 7,666 -10,017 -56.65 301 -57.43 0.0127
2017-11-13 2017-09-30 13F MAIN STREET CAPITAL COM 56035L104 17,683 557 3.25 707 7.45 0.0175
2017-08-10 2017-06-30 13F MAIN STREET CAPITAL COM 56035L104 17,126 552 3.33 658 4.28 0.0178
2017-05-10 2017-03-31 13F MAIN STREET CAPITAL COM 56035L104 16,574 111 0.67 631 4.47 0.0176
2017-02-09 2016-12-31 13F MAIN STREET CAPITAL COM 56035L104 16,463 1,621 10.92 604 18.20 0.0198
2016-11-10 2016-09-30 13F MAIN STREET CAPITAL COM 56035L104 14,842 -166 -1.11 511 4.07 0.0208
2016-08-09 2016-06-30 13F MAIN STREET CAPITAL COM 56035L104 15,008 612 4.25 491 8.87 0.0198
2016-05-13 2016-03-31 13F MAIN STREET CAPITAL COM 56035L104 14,396 -1,638 -10.22 451 -3.22 0.0218
2016-02-09 2015-12-31 13F MAIN STREET CAPITAL COM 56035L104 16,034 5,870 57.75 466 71.96 0.0223
2015-11-13 2015-09-30 13F MAIN STREET CAPITAL COM 56035L104 10,164 -782 -7.14 271 -22.35 0.0149
2015-08-13 2015-06-30 13F MAIN STREET CAPITAL COM 56035L104 10,946 1,253 12.93 349 16.33 0.0166
2015-05-13 2015-03-31 13F MAIN STREET CAPITAL COM 56035L104 9,693 -907 -8.56 300 -3.23 0.0173
2015-02-17 2014-12-31 13F MAIN STREET CAPITAL COM 56035L104 10,600 -526 -4.73 310 -9.09 0.0200
2014-11-12 2014-09-30 13F MAIN STREET CAPITAL COM 56035L104 11,126 2,319 26.33 341 17.59 0.0236
2014-08-08 2014-06-30 13F MAIN STREET CAPITAL COM 56035L104 8,807 1,101 14.29 290 14.62 0.0249
2014-05-15 2014-03-31 13F MAIN STREET CAPITAL COM 56035L104 7,706 1,181 18.10 253 18.78 0.0267
2014-02-13 2013-12-31 13F MAIN STREET CAPITAL COM 56035L104 6,525 6,525 213 0.0238
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.