MAIN · Main Street Capital CORP · Shareholders & Ownership

$53.36 +0.21 (+0.40%)

Market Cap

$4.97B

93.51M

Volume · Oct 20 385.2K Avg daily vol (3M) 513.42K

Every disclosed holder of MAIN in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns MAIN

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	398	22,693,745	24.27%	Yes
Insiders (Forms 3, 4, 5)	13	3,536,057	3.78%	Yes
13D/G-only blocks	0	0	0.00%	Yes
Remaining	—	67,278,659	71.95%	Rest
Registered funds (N-PORT, not summed)	20	4,799,563	5.13%	No

Shares outstanding: 93,508,461, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of MAIN

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	PRICE T ROWE ASSOCIATES INC /MD/ 13F CIK 80255 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	3,342,499	3.57%	+633,696	Jun 30, 2026	carried, not yet filed for the newest quarter
1.1	T. Rowe Price Mid-Cap Value Fund, Inc. Fund S000002103 · Registered fund · Jun 30, 2026 T. ROWE PRICE MID-CAP VALUE FUND, INC., not summed	1,620,516	1.73%	+229,374	Jun 30, 2026	T. ROWE PRICE MID-CAP VALUE FUND, INC., not summed
1.2	T. Rowe Price Small-Mid Cap ETF Fund S000079837 · Registered fund · Jun 30, 2026 T. Rowe Price Exchange-Traded Funds, Inc., not summed	131,173	0.14%	+44,168	Jun 30, 2026	T. Rowe Price Exchange-Traded Funds, Inc., not summed
1.3	T. Rowe Price Integrated U.S. Small-Mid Cap Core Equity Fund Fund S000052904 · Registered fund · Jun 30, 2026 T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed	95,234	0.10%	+33,313	Jun 30, 2026	T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
2	VAN ECK ASSOCIATES CORP 13F CIK 869178 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,885,274	2.02%	-223,648	Jun 30, 2026	carried, not yet filed for the newest quarter
3	FOSTER VINCENT D Insider CIK 1069725 · Aug 14, 2026 Director, issuer-wide	1,710,977	1.83%	—	Aug 14, 2026	Director, issuer-wide
4	VanEck BDC Income ETF Fund S000033466 · Registered fund · Jun 30, 2026 VanEck ETF Trust, not summed	1,654,565	1.77%	-191,835	Jun 30, 2026	VanEck ETF Trust, not summed
5	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,387,731	1.48%	+48,919	Jun 30, 2026	carried, not yet filed for the newest quarter
6	Legal & General Group Plc 13F CIK 764068 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	835,057	0.89%	+51,036	Jun 30, 2026	carried, not yet filed for the newest quarter
7	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	786,284	0.84%	-68,301	Jun 30, 2026	carried, not yet filed for the newest quarter
8	Qube Research & Technologies Ltd 13F CIK 1729829 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	654,166	0.70%	+168,367	Jun 30, 2026	carried, not yet filed for the newest quarter
9	Invesco Ltd. 13F CIK 914208 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	553,967	0.59%	+121,492	Jun 30, 2026	carried, not yet filed for the newest quarter
9.1	Invesco High Yield Equity Dividend AchieversTM ETF Fund S000003045 · Registered fund · Jul 31, 2026 Invesco Exchange-Traded Fund Trust, not summed	504,012	0.54%	+114,964	Jul 31, 2026	Invesco Exchange-Traded Fund Trust, not summed
9.2	Invesco Global Listed Private Equity ETF Fund S000013789 · Registered fund · Jul 31, 2026 Invesco Exchange-Traded Fund Trust, not summed	43,029	0.05%	+288	Jul 31, 2026	Invesco Exchange-Traded Fund Trust, not summed
9.3	Invesco Dividend AchieversTM ETF Fund S000003037 · Registered fund · Jul 31, 2026 Invesco Exchange-Traded Fund Trust, not summed	2,646	0.00%	+137	Jul 31, 2026	Invesco Exchange-Traded Fund Trust, not summed
10	Hyzak Dwayne L. Insider CIK 1414109 · Aug 14, 2026 Director, CEO, SMD, issuer-wide	508,681	0.54%	+407	Aug 14, 2026	Director, CEO, SMD, issuer-wide
11	ADELL HARRIMAN & CARPENTER INC 13F CIK 1134152 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	498,998	0.53%	+14,414	Jun 30, 2026	carried, not yet filed for the newest quarter
12	Muzinich & Co., Inc. 13F CIK 1618824 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	495,923	0.53%	+11,100	Jun 30, 2026	carried, not yet filed for the newest quarter
13	Magdol David L. Insider CIK 1414108 · Aug 14, 2026 PRESIDENT, CIO AND SMD, issuer-wide	441,141	0.47%	+118	Aug 14, 2026	PRESIDENT, CIO AND SMD, issuer-wide
14	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	403,623	0.43%	-20,612	Jun 30, 2026	carried, not yet filed for the newest quarter
15	Sumitomo Mitsui Trust Group, Inc. 13F CIK 1475365 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	375,509	0.40%	+5,000	Jun 30, 2026	carried, not yet filed for the newest quarter
16	D. E. Shaw & Co., Inc. 13F CIK 1009207 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	375,318	0.40%	-168,007	Jun 30, 2026	carried, not yet filed for the newest quarter
17	LPL Financial LLC 13F CIK 1403438 · Broker-dealer · Jun 30, 2026 carried, not yet filed for the newest quarter	347,600	0.37%	-328	Jun 30, 2026	carried, not yet filed for the newest quarter
18	FRANKLIN RESOURCES INC 13F CIK 38777 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	342,763	0.37%	+21,895	Jun 30, 2026	carried, not yet filed for the newest quarter
18.1	Putnam BDC Income ETF Fund S000077137 · Registered fund · Jul 31, 2026 Putnam ETF Trust, not summed	348,767	0.37%	+10,474	Jul 31, 2026	Putnam ETF Trust, not summed
19	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	332,291	0.36%	+18,903	Jun 30, 2026	carried, not yet filed for the newest quarter
20	PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO 13F CIK 315297 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	281,397	0.30%	+1	Jun 30, 2026	carried, not yet filed for the newest quarter
21	CHILDRESS CAPITAL ADVISORS, LLC 13F CIK 1849561 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	257,733	0.28%	-36,000	Jun 30, 2026	carried, not yet filed for the newest quarter
22	RAYMOND JAMES FINANCIAL INC 13F CIK 720005 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	238,617	0.26%	-25,104	Jun 30, 2026	carried, not yet filed for the newest quarter
23	Morris Jesse E Insider CIK 1596070 · Aug 21, 2026 Director, EVP AND COO, issuer-wide	232,568	0.25%	-35,000	Aug 21, 2026	Director, EVP AND COO, issuer-wide
24	Trinity Legacy Partners, LLC 13F CIK 1652529 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	217,844	0.23%	+14,688	Jun 30, 2026	carried, not yet filed for the newest quarter
25	SANDERS MORRIS HARRIS LLC 13F CIK 1053994 · Broker-dealer · Sep 30, 2026	198,923	0.21%	-636	Sep 30, 2026
26	Beauvais Jason B Insider CIK 1437113 · Sep 2, 2026 EVP, GC, SECRETARY, issuer-wide	196,502	0.21%	-27	Sep 2, 2026	EVP, GC, SECRETARY, issuer-wide
27	ROYAL BANK OF CANADA 13F CIK 1000275 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	174,795	0.19%	+23,599	Jun 30, 2026	carried, not yet filed for the newest quarter
28	Bridgelight Financial Advisors, Inc. 13F CIK 2145102 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	166,563	0.18%	+29,960	Jun 30, 2026	carried, not yet filed for the newest quarter
29	Private Advisor Group, LLC 13F CIK 1567755 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	162,463	0.17%	-7,847	Jun 30, 2026	carried, not yet filed for the newest quarter
30	OSAIC HOLDINGS, INC. 13F CIK 1677044 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	162,228	0.17%	-7,467	Jun 30, 2026	carried, not yet filed for the newest quarter
31	Cambridge Investment Research Advisors, Inc. 13F CIK 1419186 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	153,949	0.16%	+9,003	Jun 30, 2026	carried, not yet filed for the newest quarter
32	Arax Advisory Partners 13F CIK 1586767 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	151,274	0.16%	+151,274	Jun 30, 2026	carried, not yet filed for the newest quarter
33	BENJAMIN EDWARDS INC 13F CIK 1451623 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	145,655	0.16%	-7,968	Jun 30, 2026	carried, not yet filed for the newest quarter
34	TECTONIC ADVISORS LLC 13F CIK 1859918 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	145,445	0.16%	+145,445	Jun 30, 2026	carried, not yet filed for the newest quarter
35	JPMORGAN CHASE & CO 13F CIK 19617 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	141,880	0.15%	-26,012	Jun 30, 2026	carried, not yet filed for the newest quarter
36	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	134,503	0.14%	-225,335	Jun 30, 2026	carried, not yet filed for the newest quarter
37	WELLS FARGO & COMPANY/MN 13F CIK 72971 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	133,473	0.14%	+29,750	Jun 30, 2026	carried, not yet filed for the newest quarter
38	Balyasny Asset Management L.P. 13F CIK 1218710 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	133,125	0.14%	+13,118	Jun 30, 2026	carried, not yet filed for the newest quarter
39	TCTC Holdings, LLC 13F CIK 1483870 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	132,691	0.14%	+3,700	Jun 30, 2026	carried, not yet filed for the newest quarter
40	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	130,435	0.14%	+19,747	Jun 30, 2026	carried, not yet filed for the newest quarter
41	AMERIPRISE FINANCIAL INC 13F CIK 820027 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	129,241	0.14%	+2,293	Jun 30, 2026	carried, not yet filed for the newest quarter
42	Joel Isaacson & Co., LLC 13F CIK 1599330 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	129,206	0.14%	+199	Jun 30, 2026	carried, not yet filed for the newest quarter
43	HOURGLASS CAPITAL, LLC 13F CIK 1442573 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	121,650	0.13%	-1,900	Jun 30, 2026	carried, not yet filed for the newest quarter
44	BANK OF AMERICA CORP /DE/ 13F CIK 70858 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	117,462	0.13%	+19,831	Jun 30, 2026	carried, not yet filed for the newest quarter
45	Segment Wealth Management, LLC 13F CIK 1575581 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	114,748	0.12%	+1,714	Jun 30, 2026	carried, not yet filed for the newest quarter
46	Hamilton Point Investment Advisors, LLC 13F CIK 1599746 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	113,705	0.12%	+70	Jun 30, 2026	carried, not yet filed for the newest quarter
47	CANADA LIFE ASSURANCE Co 13F CIK 1046192 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	113,433	0.12%	+15,828	Jun 30, 2026	carried, not yet filed for the newest quarter
48	TUDOR INVESTMENT CORP ET AL 13F CIK 923093 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	111,577	0.12%	+38,647	Jun 30, 2026	carried, not yet filed for the newest quarter
49	Beacon Pointe Advisors, LLC 13F CIK 1744317 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	109,186	0.12%	+57,611	Jun 30, 2026	carried, not yet filed for the newest quarter
50	Meridian Wealth Management, LLC 13F CIK 1697300 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	108,809	0.12%	+7,612	Jun 30, 2026	carried, not yet filed for the newest quarter

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 417 holders

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Key facts CIK 1396440 CUSIP 56035L104 13F (30d) 53 filings 49 filers Visit website Investor relations