Main Street Capital Corporation
US ˙ NYSE ˙ US56035L1044

SecurityMAIN / Main Street Capital Corporation
InstitutionWebster Bank, N. A.
Latest Disclosed Ownership300 shares
Latest Disclosed Value $ 15,888
Webster Bank, N. A. ownership in MAIN / Main Street Capital Corporation

On April 17, 2026 - Webster Bank, N. A. filed a 13F-HR form disclosing ownership of 300 shares of Main Street Capital Corporation (US:MAIN) valued at $15,888 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 300 shares of Main Street Capital Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $15,606 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)
2026-04-17 2026-03-31 13F MAIN STR CAP COM 56035L104 300 0 0.00 16 -16.67 0.0015
2026-01-23 2025-12-31 13F MAIN STR CAP COM 56035L104 300 0 0.00 18 -5.26 0.0017
2025-10-23 2025-09-30 13F MAIN STR CAP COM 56035L104 300 0 0.00 19 11.76 0.0018
2025-07-08 2025-06-30 13F MAIN STR CAP COM 56035L104 300 0 0.00 18 6.25 0.0018
2025-04-04 2025-03-31 13F MAIN STR CAP COM 56035L104 300 -141 -31.97 17 -36.00 0.0019
2025-01-22 2024-12-31 13F Main Street Capital COM 56035L104 441 0 0.00 26 13.64 0.0028
2024-10-10 2024-09-30 13F Main Street Capital COM 56035L104 441 0 0.00 22 0.00 0.0024
2024-07-12 2024-06-30 13F Main Street Capital COM 56035L104 441 0 0.00 22 10.00 0.0024
2024-04-16 2024-03-31 13F Main Street Capital COM 56035L104 441 -112 -20.25 21 -13.04 0.0023
2024-01-23 2023-12-31 13F Main Street Capital COM 56035L104 553 0 0.00 24 4.55 0.0029
2023-10-10 2023-09-30 13F Main Street Capital COM 56035L104 553 0 0.00 22 0.00 0.0030
2023-07-13 2023-06-30 13F Main Street Capital COM 56035L104 553 0 0.00 22 4.76 0.0029
2023-04-13 2023-03-31 13F Main Street Capital COM 56035L104 553 0 0.00 22 0.0028
2023-01-18 2022-12-31 13F Main Street Capital COM 56035L104 553 0 0.00 0 -100.00 0.0027
2022-10-24 2022-09-30 13F Main Street Capital COM 56035L104 553 0 0.00 19 -9.52 0.0028
2022-07-12 2022-06-30 13F Main Street Capital COM 56035L104 553 0 0.00 21 -12.50 0.0029
2022-04-13 2022-03-31 13F Main Street Capital COM 56035L104 553 0 0.00 24 -4.00 0.0017
2022-01-12 2021-12-31 13F Main Street Capital COM 56035L104 553 0 0.00 25 8.70 0.0026
2021-10-12 2021-09-30 13F Main Street Capital COM 56035L104 553 0 0.00 23 0.00 0.0026
2021-07-20 2021-06-30 13F Main Street Capital COM 56035L104 553 0 0.00 23 4.55 0.0025
2021-05-07 2021-03-31 13F Main Street Capital COM 56035L104 553 0 0.00 22 22.22 0.0025
2021-01-07 2020-12-31 13F Main Street Capital COM 56035L104 553 0 0.00 18 12.50 0.0021
2020-10-22 2020-09-30 13F Main Street Capital COM 56035L104 553 0 0.00 16 -5.88 0.0021
2020-07-09 2020-06-30 13F Main Street Capital COM 56035L104 553 0 0.00 17 54.55 0.0024
2020-04-21 2020-03-31 13F Main Street Capital COM 56035L104 553 -116 -17.34 11 -62.07 0.0018
2020-01-14 2019-12-31 13F Main Street Capital COM 56035L104 669 0 0.00 29 0.00 0.0037
2019-10-01 2019-09-30 13F Main Street Capital COM 56035L104 669 0 0.00 29 3.57 0.0039
2019-07-11 2019-06-30 13F Main Street Capital COM 56035L104 669 0 0.00 28 12.00 0.0039
2019-04-10 2019-03-31 13F Main Street Capital COM 56035L104 669 -81 -10.80 25 0.00 0.0036
2019-01-09 2018-12-31 13F Main Street Capital COM 56035L104 750 0 0.00 25 -13.79 0.0040
2018-10-12 2018-09-30 13F Main Street Capital COM 56035L104 750 0 0.00 29 0.00 0.0040
2018-07-12 2018-06-30 13F Main Street Capital COM 56035L104 750 0 0.00 29 3.57 0.0042
2018-04-19 2018-03-31 13F Main Street Capital COM 56035L104 750 0 0.00 28 -6.67 0.0040
2018-01-23 2017-12-31 13F Main Street Capital COM 56035L104 750 0 0.00 30 0.00 0.0041
2017-10-12 2017-09-30 13F Main Street Capital COM 56035L104 750 0 0.00 30 3.45 0.0044
2017-07-12 2017-06-30 13F Main Street Capital COM 56035L104 750 0 0.00 29 0.00 0.0043
2017-05-01 2017-03-31 13F Main Street Capital COM 56035L104 750 0 0.00 29 3.57 0.0044
2017-02-15 2016-12-31 13F Main Street Capital COM 56035L104 750 750 28 0.0041
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.