Main Street Capital Corporation
US ˙ NYSE ˙ US56035L1044

SecurityMAIN / Main Street Capital Corporation
InstitutionCreative Planning
Latest Disclosed Ownership82,247 shares
Latest Disclosed Value $ 4,355,823
Creative Planning ownership in MAIN / Main Street Capital Corporation

On May 12, 2026 - Creative Planning filed a 13F-HR form disclosing ownership of 82,247 shares of Main Street Capital Corporation (US:MAIN) valued at $4,355,801 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 77,467 shares of Main Street Capital Corporation. This represents a change in shares of 6.17% during the quarter. The current value of the position is $4,170,745 USD.

Creative Planning has a history of taking positions in derivatives of the underlying security (MAIN) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MAIN / Main Street Capital Corporation Historical Put/Call Ratio
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)
2026-05-12 2026-03-31 13F MAIN STR CAP COM 56035L104 82,247 4,780 6.17 4,356 -6.90 0.0030
2026-02-17 2025-12-31 13F MAIN STR CAP COM 56035L104 77,467 -644 -0.82 4,678 -5.82 0.0033
2025-11-14 2025-09-30 13F MAIN STR CAP COM 56035L104 78,111 2,772 3.68 4,967 11.57 0.0038
2025-08-08 2025-06-30 13F MAIN STR CAP COM 56035L104 75,339 -72 -0.10 4,453 4.38 0.0038
2025-05-15 2025-03-31 13F MAIN STR CAP COM 56035L104 75,411 -3,560 -4.51 4,265 -7.80 0.0040
2025-02-14 2024-12-31 13F MAIN STR CAP COM 56035L104 78,971 5,795 7.92 4,626 26.08 0.0045
2024-10-11 2024-09-30 13F MAIN STR CAP COM 56035L104 73,176 19,777 37.04 3,669 36.09 0.0036
2024-08-15 2024-06-30 13F MAIN STR CAP COM 56035L104 53,399 3,002 5.96 2,696 13.09 0.0029
2024-05-13 2024-03-31 13F MAIN STR CAP COM 56035L104 50,397 7,660 17.92 2,384 29.07 0.0026
2024-02-14 2023-12-31 13F MAIN STR CAP COM 56035L104 42,737 -1,032 -2.36 1,848 3.88 0.0034
2023-11-16 2023-09-30 13F MAIN STR CAP COM 56035L104 43,769 -1,809 -3.97 1,778 -2.52 0.0024
2023-07-21 2023-06-30 13F MAIN STR CAP COM 56035L104 45,578 13,067 40.19 1,824 42.28 0.0024
2023-05-15 2023-03-31 13F MAIN STR CAP COM 56035L104 32,511 -6,056 -15.70 1,283 -10.04 0.0018
2023-02-10 2022-12-31 13F MAIN STR CAP COM 56035L104 38,567 7,022 22.26 1,425 34.31 0.0021
2022-11-03 2022-09-30 13F MAIN STR CAP COM 56035L104 31,545 963 3.15 1,061 -9.93 0.0018
2022-08-15 2022-06-30 13F MAIN STR CAP COM 56035L104 30,582 -3,424 -10.07 1,178 -18.76 0.0019
2022-05-16 2022-03-31 13F MAIN STR CAP COM 56035L104 34,006 2,742 8.77 1,450 3.42 0.0022
2022-02-11 2021-12-31 13F MAIN STR CAP COM 56035L104 31,264 -13,916 -30.80 1,402 -24.50 0.0023
2021-11-10 2021-09-30 13F MAIN STR CAP COM 56035L104 45,180 -4,359 -8.80 1,857 -8.79 0.0033
2021-08-04 2021-06-30 13F MAIN STR CAP COM 56035L104 49,539 11,654 30.76 2,036 37.29 0.0036
2021-04-30 2021-03-31 13F CreativePlanning COM 56035L104 37,885 6,886 22.21 1,483 48.30 0.0030
2021-01-29 2020-12-31 13F MAIN STR CAP COM 56035L104 30,999 -2,053 -6.21 1,000 2.35 0.0022
2020-11-05 2020-09-30 13F MAIN STR CAP COM 56035L104 33,052 -1,786 -5.13 977 -9.95 0.0026
2020-07-23 2020-06-30 13F MAIN STR CAP COM 56035L104 34,838 -4,489 -11.41 1,085 34.45 0.0031
2020-05-05 2020-03-31 13F MAIN STR CAP COM 56035L104 39,327 2,395 6.48 807 -49.31 0.0029
2020-01-30 2019-12-31 13F MAIN STREET CAPITAL COM 56035L104 36,932 6,750 22.36 1,592 22.09 0.0048
2019-11-01 2019-09-30 13F MAIN STREET CAPITAL COM 56035L104 30,182 1,244 4.30 1,304 9.58 0.0042
2019-07-26 2019-06-30 13F MAIN STREET CAPITAL COM 56035L104 28,938 -583 -1.97 1,190 8.38 0.0040
2019-04-24 2019-03-31 13F MAIN STREET CAPITAL COM 56035L104 29,521 1,094 3.85 1,098 14.26 0.0040
2019-02-12 2018-12-31 13F/A-1 MAIN STREET CAPITAL COM 56035L104 28,427 58 0.20 961 -12.00 0.0039
2019-02-01 2018-12-31 13F MAIN STREET CAPITAL COM 56035L104 28,427 58 961
2018-10-25 2018-09-30 13F MAIN STREET CAPITAL COM 56035L104 28,369 542 1.95 1,092 3.12 0.0041
2018-07-20 2018-06-30 13F MAIN STREET CAPITAL COM 56035L104 27,827 2,893 11.60 1,059 15.11 0.0042
2018-04-18 2018-03-31 13F MAIN STREET CAPITAL COM 56035L104 24,934 4,354 21.16 920 12.47 0.0037
2018-01-17 2017-12-31 13F MAIN STREET CAPITAL COM 56035L104 20,580 3,564 20.94 818 21.01 0.0035
2017-10-17 2017-09-30 13F MAIN STREET CAPITAL COM 56035L104 17,016 -579 -3.29 676 -0.15 0.0031
2017-07-12 2017-06-30 13F MAIN STREET CAPITAL COM 56035L104 17,595 2,877 19.55 677 20.25 0.0034
2017-04-07 2017-03-31 13F MAIN STREET CAPITAL COM 56035L104 14,718 1,281 9.53 563 13.97 0.0031
2017-01-09 2016-12-31 13F MAIN STREET CAPITAL COM 56035L104 13,437 -2,382 -15.06 494 -9.02 0.0030
2016-10-12 2016-09-30 13F MAIN STREET CAPITAL COM 56035L104 15,819 382 2.47 543 7.10 0.0035
2016-07-12 2016-06-30 13F MAIN STREET CAPITAL COM 56035L104 15,437 1,394 9.93 507 15.23 0.0037
2016-04-08 2016-03-31 13F MAIN STREET CAPITAL COM 56035L104 14,043 -4,904 -25.88 440 -20.15 0.0034
2016-01-11 2015-12-31 13F MAIN STREET CAPITAL COM 56035L104 18,947 1,178 6.63 551 16.24 0.0045
2015-10-09 2015-09-30 13F MAIN STREET CAPITAL COM 56035L104 17,769 17,769 0.00 474 0.0042
2015-07-09 2015-06-30 13F MAIN STREET CAPITAL COM 56035L104 0 -9,410 -100.00 0 -100.00
2015-04-13 2015-03-31 13F MAIN STREET CAPITAL COM 56035L104 9,410 9,410 0.00 291 0.0027
2015-01-29 2014-12-31 13F MAIN STREET CAPITAL COM 56035L104 0 -7,801 -100.00 0 -100.00
2014-10-10 2014-09-30 13F MAIN STREET CAPITAL COM 56035L104 7,801 1,656 26.95 239 18.32 0.0028
2014-08-20 2014-06-30 13F MAIN STREET CAPITAL COM 56035L104 6,145 399 6.94 202 6.88 0.0026
2014-04-11 2014-03-31 13F MAIN STREET CAPITAL COM 56035L104 5,746 193 3.48 189 3.85 0.0028
2014-01-06 2013-12-31 13F MAIN STREET CAPITAL COM 56035L104 5,553 -2,504 -31.08 182 -24.48 0.0031
2013-10-10 2013-09-30 13F MAIN STREET CAPITAL COM 56035L104 8,057 4,270 112.75 241 129.52 0.0048
2013-07-09 2013-06-30 13F MAIN STREET CAPITAL COM 56035L104 3,787 3,787 105 0.0024
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2016-04-08 2016-03-31 13F MAIN STREET CAPITAL COM Call 0 0 n/a n/a n/a
2016-01-11 2015-12-31 13F MAIN STREET CAPITAL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-10-09 2015-09-30 13F MAIN STREET CAPITAL COM Call 6,000 1 n/a n/a n/a
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.