Main Street Capital Corporation
US ˙ NYSE ˙ US56035L1044

SecurityMAIN / Main Street Capital Corporation
InstitutionCentaurus Financial, Inc.
Latest Disclosed Ownership2,973 shares
Latest Disclosed Value $ 157
Centaurus Financial, Inc. reports 77.81% increase in ownership of MAIN / Main Street Capital Corporation

On May 18, 2026 - Centaurus Financial, Inc. filed a 13F-HR form disclosing ownership of 2,973 shares of Main Street Capital Corporation (US:MAIN) valued at $157,450 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,672 shares of Main Street Capital Corporation. The current value of the position is $150,761 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)
2026-05-18 2026-03-31 13F MAIN STR CAP COM 56035L104 2,973 1,301 77.81 0 0.0075
2026-02-13 2025-12-31 13F MAIN STR CAP COM 56035L104 1,672 1,672 0 0.0046
2025-03-12 2024-12-31 13F MAIN STR CAP COM 56035L104 0 -14,742 -100.00 0 0.0000
2024-11-12 2024-09-30 13F MAIN STR CAP COM 56035L104 14,742 885 6.39 1 0.0470
2024-09-23 2024-06-30 13F MAIN STR CAP COM 56035L104 13,857 -529 -3.68 1 0.0466
2024-05-14 2024-03-31 13F MAIN STR CAP COM 56035L104 14,386 -1,580 -9.90 1 0.0476
2024-02-26 2023-12-31 13F MAIN STR CAP COM 56035L104 15,966 -4,882 -23.42 1 0.0524
2023-11-13 2023-09-30 13F MAIN STR CAP COM 56035L104 20,848 -2,400 -10.32 1 0.0736
2023-08-15 2023-06-30 13F MAIN STR CAP COM 56035L104 23,248 -9,365 -28.72 1 -100.00 0.0815
2023-05-18 2023-03-31 13F MAIN STR CAP COM 56035L104 32,613 -6,171 -15.91 1 0.00 0.1031
2023-02-13 2022-12-31 13F MAIN STR CAP COM 56035L104 38,784 -6,458 -14.27 1 -99.93 0.1348
2022-12-05 2022-09-30 13F MAIN STR CAP COM 56035L104 45,242 -748 -1.63 1,522 -14.11 0.1484
2022-08-02 2022-06-30 13F MAIN STR CAP COM 56035L104 45,990 -110 -0.24 1,772 -9.87 0.1748
2022-05-13 2022-03-31 13F MAIN STR CAP COM 56035L104 46,100 -3,557 -7.16 1,966 -11.76 0.1551
2022-02-01 2021-12-31 13F MAIN STR CAP COM 56035L104 49,657 893 1.83 2,228 11.18 0.1685
2021-11-12 2021-09-30 13F MAIN STR CAP COM 56035L104 48,764 -486 -0.99 2,004 -0.99 0.1680
2021-08-10 2021-06-30 13F MAIN STR CAP COM 56035L104 49,250 -4,016 -7.54 2,024 -2.93 0.1704
2021-04-30 2021-03-31 13F MAIN STR CAP COM 56035L104 53,266 -6,005 -10.13 2,085 9.05 0.2056
2021-01-25 2020-12-31 13F MAIN STR CAP COM 56035L104 59,271 -5,655 -8.71 1,912 -0.42 0.2012
2020-11-12 2020-09-30 13F MAIN STR CAP COM 56035L104 64,926 -6,604 -9.23 1,920 -13.79 0.2658
2020-08-13 2020-06-30 13F MAIN STR CAP COM 56035L104 71,530 15,637 27.98 2,227 94.33 0.3292
2020-04-21 2020-03-31 13F MAIN STR CAP COM 56035L104 55,893 18,847 50.87 1,146 -28.24 0.2290
2020-02-12 2019-12-31 13F MAIN STREET CAPITAL COM 56035L104 37,046 -30,673 -45.29 1,597 -45.42 0.2236
2019-11-09 2019-09-30 13F MAIN STREET CAPITAL COM 56035L104 67,719 -13,217 -16.33 2,926 -12.08 0.4580
2019-08-15 2019-06-30 13F MAIN STREET CAPITAL COM 56035L104 80,936 77,916 2,580.00 3,328 4,008.64 0.5241
2019-07-01 2019-03-31 13F/A-1 MAIN STREET CAPITAL COM 56035L104 3,020 -6,197 -67.23 81 -70.33 0.4773
2019-05-13 2019-03-31 13F MAIN STREET CAPITAL COM 56035L104 81,176 71,959 3,020
2019-02-12 2018-12-31 13F MAIN STREET CAPITAL COM 56035L104 9,217 -264,783 -96.64 273 -97.42 1.9597
2018-11-02 2018-09-30 13F MAIN STREET CAPITAL COM 56035L104 274,000 -1,724 -0.63 10,563 0.66 1.9082
2018-08-14 2018-06-30 13F MAIN STREET CAPITAL COM 56035L104 275,724 25,541 10.21 10,494 13.67 1.4491
2018-05-07 2018-03-31 13F MAINSTREETCAPITALCORP COM 56035L104 250,183 13,830 5.85 9,232 -1.68 2.1658
2018-02-09 2017-12-31 13F MAIN STREET CAPITAL COM 56035L104 236,353 236,353 9,390 2.4327
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.