Main Street Capital MAIN Institutional Ownership

NYSE MAIN

$56.15 +0.36 (+0.65%)

As of: Sep 11, 2026 · 9:35 AM EDT

Institutions by Trading Activity

399 Institutions

Increased 189 47.4%

Unchanged 90 22.6%

Reduced 120 30.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

24.30%

▼-1.54 pp QoQ

Shares Held by Institutions

22.66Mn

of 93.25Mn outstanding

▲+0.72% QoQ

Shares Outstanding

93.25Mn

70.59Mn held outside 13F filers

Institutional Investors

399

filed 13F for Jun 2026

▼-26 vs prior quarter

Net Shares Added (QoQ)

+161.40K

accumulated since last quarter

Value of Holdings

$1.31Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Main Street Capital CORP (NYSE:MAIN) is held by 399 institutional investors per 13F filings through June 2026.

They owned 24.3% of outstanding stock in June 2026, down from 25.8% the prior quarter.
They increased total shares held in Main Street Capital by 0.72% from the prior quarter, while the number of investors in MAIN decreased 1.24% year over year.
Of these 399 holders, 189 added to their stakes in Main Street Capital, 120 trimmed positions, and 90 made no changes.
Combined, these investors held 22.66Mn shares in MAIN for June 2026, up by 161.4K shares quarter on quarter, and up 3.46Mn shares year over year.
PRICE T ROWE ASSOCIATES INC /MD/ leads ownership in MAIN with 3.34Mn shares as of June 30, 2026, equal to 3.58% of outstanding shares.
The most significant purchases of MAIN for the quarter ending June 2026 came from PRICE T ROWE ASSOCIATES INC /MD/ (633.7K), Qube Research & Technologies Ltd (168.37K), Arax Advisory Partners (151.27K), TECTONIC ADVISORS LLC (145.44K), Invesco Ltd. (121.49K).
The largest sales of MAIN for the quarter ending June 2026 came from TWO SIGMA INVESTMENTS, LP (513.74K), MILLENNIUM MANAGEMENT LLC (225.34K), VAN ECK ASSOCIATES CORP (223.65K), D. E. Shaw & Co., Inc. (168.01K), MGO ONE SEVEN LLC (108.09K).
Per Business Quant data, the top 10 holders of Main Street Capital for the quarter ending June 2026 are PRICE T ROWE ASSOCIATES INC /MD/ (3.34Mn), VAN ECK ASSOCIATES CORP (1.89Mn), UBS Group AG (1.39Mn), Legal & General Group Plc (835.06K), Morgan Stanley (786.28K), Qube Research & Technologies Ltd (654.17K), Invesco Ltd. (553.97K), ADELL HARRIMAN & CARPENTER INC (499.0K), Muzinich & Co., Inc. (495.92K), BlackRock, Inc. (403.62K).

Form 13F Holdings

399 Institutional Holders

Report period 30 Jun, 2026

Total shares held 22.66Mn

Of outstanding 24.30%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	3,342,499	3.58%	▲633,696	+23.39%	$173.41K
2	VAN ECK ASSOCIATES CORP	0000869178	1,885,274	2.02%	▼223,648	-10.60%	$97.81Mn
3	UBS Group AG	0001610520	1,387,731	1.49%	▲48,919	+3.65%	$72.00Mn
4	Legal & General Group Plc	0000764068	835,057	0.90%	▲51,036	+6.51%	$43.32Mn
5	Morgan Stanley	0000895421	786,284	0.84%	▼68,301	-7.99%	$40.79Mn
6	Qube Research & Technologies Ltd	0001729829	654,166	0.70%	▲168,367	+34.66%	$33.94Mn
7	Invesco Ltd.	0000914208	553,967	0.59%	▲121,492	+28.09%	$28.74Mn
8	ADELL HARRIMAN & CARPENTER INC	0001134152	498,998	0.54%	▲14,414	+2.97%	$25.89Mn
9	Muzinich & Co., Inc.	0001618824	495,923	0.53%	▲11,100	+2.29%	$25.73Mn
10	BlackRock, Inc.	0002012383	403,623	0.43%	▼20,612	-4.86%	$20.94Mn
11	Sumitomo Mitsui Trust Group, Inc.	0001475365	375,509	0.40%	▲5,000	+1.35%	$19.48Mn
12	D. E. Shaw & Co., Inc.	0001009207	375,318	0.40%	▼168,007	-30.92%	$19.47Mn
13	LPL Financial LLC	0001403438	347,600	0.37%	▼328	-0.09%	$18.03Mn
14	Franklin Resources Inc	0000038777	342,763	0.37%	▲21,895	+6.82%	$17.78Mn
15	Goldman Sachs Group Inc	0000886982	332,291	0.36%	▲18,903	+6.03%	$17.24Mn
16	PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO	0000315297	281,397	0.30%	▲1	+0.00%	$14.60K
17	CHILDRESS CAPITAL ADVISORS, LLC	0001849561	257,733	0.28%	▼36,000	-12.26%	$13.37Mn
18	Raymond James Financial Inc	0000720005	238,617	0.26%	▼25,104	-9.52%	$12.38Mn
19	Trinity Legacy Partners, LLC	0001652529	217,844	0.23%	▲14,688	+7.23%	$12.10Mn
20	SANDERS MORRIS HARRIS LLC	0001053994	199,559	0.21%	▼37,696	-15.89%	$10.35Mn

Showing 1 to 20 of 399 holders