Main Street Capital Corporation
US ˙ NYSE ˙ US56035L1044

SecurityMAIN / Main Street Capital Corporation
InstitutionVan Eck Associates Corp
Latest Disclosed Ownership2,108,922 shares
Latest Disclosed Value $ 111,689
Van Eck Associates Corp reports 86.24% increase in ownership of MAIN / Main Street Capital Corporation

On May 15, 2026 - Van Eck Associates Corp filed a 13F-HR form disclosing ownership of 2,108,922 shares of Main Street Capital Corporation (US:MAIN) valued at $111,688,509 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,132,346 shares of Main Street Capital Corporation. This represents a change in shares of 86.24% during the quarter. The current value of the position is $106,943,435 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)
2026-05-15 2026-03-31 13F Main Street Capital COM 56035L104 2,108,922 976,576 86.24 112 63.24 0.0732
2026-02-13 2025-12-31 13F Main Street Capital COM 56035L104 1,132,346 -1,315,855 -53.75 68 -56.13 0.0565
2025-11-13 2025-09-30 13F Main Street Capital COM 56035L104 2,448,201 1,229,863 100.95 156 115.28 0.1446
2025-08-14 2025-06-30 13F Main Street Capital COM 56035L104 1,218,338 46,890 4.00 72 9.09 0.0815
2025-05-15 2025-03-31 13F Main Street Capital COM 56035L104 1,171,448 -116,861 -9.07 66 -12.00 0.0856
2025-01-29 2024-12-31 13F Main Street Capital COM 56035L104 1,288,309 92,833 7.77 75 22.95 0.0966
2024-10-29 2024-09-30 13F Main Street Capital COM 56035L104 1,195,476 45,381 3.95 62 5.17 0.0771
2024-07-31 2024-06-30 13F Main Street Capital COM 56035L104 1,150,095 141,312 14.01 58 23.40 0.0825
2024-04-30 2024-03-31 13F Main Street Capital COM 56035L104 1,008,783 122,757 13.85 48 23.68 0.0721
2024-02-05 2023-12-31 13F Main Street Capital COM 56035L104 886,026 80,963 10.06 38 18.75 0.0697
2023-11-08 2023-09-30 13F Main Street Capital COM 56035L104 805,063 88,802 12.40 33 14.29 0.0718
2023-08-03 2023-06-30 13F Main Street Capital COM 56035L104 716,261 51,189 7.70 29 7.69 0.0627
2023-05-03 2023-03-31 13F Main Street Capital COM 56035L104 665,072 2,880 0.43 26 8.33 0.0597
2023-02-08 2022-12-31 13F Main Street Capital COM 56035L104 662,192 71,092 12.03 24 -99.88 0.0632
2022-10-27 2022-09-30 13F Main Street Capital COM 56035L104 591,100 -108,736 -15.54 19,885 -26.26 0.0592
2022-08-03 2022-06-30 13F Main Street Capital COM 56035L104 699,836 -79,056 -10.15 26,965 -18.81 0.0715
2022-05-10 2022-03-31 13F Main Street Capital COM 56035L104 778,892 50,377 6.92 33,212 1.62 0.0685
2022-01-26 2021-12-31 13F Main Street Capital COM 56035L104 728,515 81,012 12.51 32,682 22.81 0.0756
2021-11-03 2021-09-30 13F Main Street Capital COM 56035L104 647,503 77,245 13.55 26,612 13.57 0.0669
2021-08-10 2021-06-30 13F Main Street Capital COM 56035L104 570,258 73,136 14.71 23,432 20.40 0.0554
2021-05-13 2021-03-31 13F Main Street Capital COM 56035L104 497,122 31,978 6.87 19,462 29.69 0.0529
2021-02-09 2020-12-31 13F Main Street Capital COM 56035L104 465,144 110,212 31.05 15,006 42.98 0.0437
2020-12-04 2020-09-30 13F/A-1 Main Street Capital COM 56035L104 354,932 10,420 3.02 10,495 -2.14 0.0334
2020-11-12 2020-09-30 13F Main Street Capital COM 56035L104 354,932 10,420 10,495 32,538.2145
2020-08-14 2020-06-30 13F/A-1 Main Street Capital COM 56035L104 344,512 -23,334 -6.34 10,725 42.15 0.0374
2020-08-10 2020-06-30 13F Main Street Capital COM 56035L104 344,512 -23,334 10,725 36,435.5210
2020-05-12 2020-03-31 13F Main Street Capital COM 56035L104 367,846 -41,331 -10.10 7,545 -57.23 0.0383
2020-02-13 2019-12-31 13F Main Street Capital COM 56035L104 409,177 -40,263 -8.96 17,640 -9.17 0.0681
2019-11-08 2019-09-30 13F Main Street Capital COM 56035L104 449,440 23,263 5.46 19,420 10.82 0.0910
2019-08-07 2019-06-30 13F Main Street Capital COM 56035L104 426,177 25,968 6.49 17,524 17.71 0.0844
2019-05-13 2019-03-31 13F Main Street Capital COM 56035L104 400,209 -81,779 -16.97 14,888 -8.64 0.0731
2019-02-12 2018-12-31 13F Main Street Capital COM 56035L104 481,988 25,653 5.62 16,296 -7.25 0.0817
2018-11-13 2018-09-30 13F Main Street Capital COM 56035L104 456,335 42,406 10.24 17,569 11.52 0.0857
2018-08-13 2018-06-30 13F Main Street Capital COM 56035L104 413,929 21,482 5.47 15,754 8.79 0.0737
2018-05-11 2018-03-31 13F Main Street Capital COM 56035L104 392,447 -18,367 -4.47 14,481 -11.28 0.0720
2018-02-12 2017-12-31 13F Main Street Capital COM 56035L104 410,814 7,442 1.84 16,322 1.80 0.0805
2017-11-09 2017-09-30 13F Main Street Capital COM 56035L104 403,372 21,957 5.76 16,034 9.31 0.0819
2017-08-11 2017-06-30 13F Main Street Capital COM 56035L104 381,415 70,945 22.85 14,669 23.46 0.0802
2017-05-11 2017-03-31 13F Main Street Capital COM 56035L104 310,470 77,273 33.14 11,882 38.57 0.0524
2017-02-09 2016-12-31 13F Main Street Capital COM 56035L104 233,197 42,750 22.45 8,575 31.16 0.0427
2016-11-14 2016-09-30 13F Main Street Capital COM 56035L104 190,447 23,936 14.38 6,538 19.52 0.0304
2016-08-12 2016-06-30 13F Main Street Capital COM 56035L104 166,511 19,643 13.37 5,470 18.81 0.0280
2016-05-13 2016-03-31 13F Main Street Capital COM 56035L104 146,868 9,405 6.84 4,604 15.19 0.0310
2016-02-12 2015-12-31 13F Main Street Capital COM 56035L104 137,463 -12,257 -8.19 3,997 0.13 0.0317
2015-11-12 2015-09-30 13F Main Street Capital COM 56035L104 149,720 17,078 12.88 3,992 -5.69 0.0307
2015-08-12 2015-06-30 13F Main Street Capital COM 56035L104 132,642 19,609 17.35 4,233 21.19 0.0250
2015-05-14 2015-03-31 13F Main Street Capital COM 56035L104 113,033 9,917 9.62 3,493 15.85 0.0202
2015-02-13 2014-12-31 13F Main Street Capital COM 56035L104 103,116 29,358 39.80 3,015 33.41 0.0187
2014-11-14 2014-09-30 13F Main Street Capital COM 56035L104 73,758 84 0.11 2,260 -6.84 0.0120
2014-08-14 2014-06-30 13F Main Street Capital COM 56035L104 73,674 24,556 49.99 2,426 50.31 0.0112
2014-05-08 2014-03-31 13F MAIN STREET CAPITAL COM 56035L104 49,118 8,672 21.44 1,614 22.09 0.0080
2014-02-12 2013-12-31 13F MAIN STREET CAPITAL COM 56035L104 40,446 4,431 12.30 1,322 22.63 0.0067
2013-11-14 2013-09-30 13F MAIN STREET CAPITAL COM 56035L104 36,015 7,195 24.97 1,078 35.09 0.0055
2013-08-14 2013-06-30 13F MAIN STREET CAPITAL COM 56035L104 28,820 28,820 798 0.0043
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.