Main Street Capital MAIN Institutional Ownership

NYSE MAIN

$53.31 -0.05 (-0.09%)

As of: Oct 21, 2026 · 3:59 PM EDT

Institutions by Trading Activity

397 Institutions

Increased 188 47.4%

Unchanged 89 22.4%

Reduced 120 30.2%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

24.22%

▼-1.06 pp QoQ

Shares Held by Institutions

22.61Mn

of 93.35Mn outstanding

▼-3.27% QoQ

Shares Outstanding

93.35Mn

70.75Mn held outside 13F filers

Institutional Investors

397

filed 13F for Jun 2026

▼-26 vs prior quarter

Net Shares Added (QoQ)

-763.27K

distributed since last quarter

Value of Holdings

$1.21Bn

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

Updated Oct 11, 2026

Main Street Capital CORP (NYSE:MAIN) was held by 397 institutional investors that filed 13F reports for the quarter ended June 30, 2026.

Together they owned 24.22% of the outstanding stock in Q2 2026, down from 25.28% a quarter earlier.
Total shares held in Main Street Capital fell 3.27% versus Q1 2026, while the number of holders fell 1.24% versus Q2 2025.
Of the 397 holders, 188 added to their positions, 120 reduced their stakes and 89 left their positions unchanged in Q2 2026.
Institutional investors held 22.61Mn shares of Main Street Capital in total at the end of Q2 2026, down 763.27K from the prior quarter and up 3.88Mn from a year earlier.
T. Rowe Price Associates Inc was the top holder of Main Street Capital as of June 30, 2026, with 3.34Mn shares, or 3.58% of shares outstanding.
The largest position increases in MAIN for Q2 2026 were by T. Rowe Price Associates Inc (+633.7K shares), Qube Research & Technologies Ltd (+168.37K shares), Invesco Ltd. (+121.49K shares), Beacon Pointe Advisors, LLC (+57.61K shares) and Legal & General Group PLC (+51.04K shares).
On the other side, among holders that kept a position in Main Street Capital, the largest reductions in Q2 2026 came from Two Sigma Investments, LP (-513.74K shares), Millennium Management LLC (-225.34K shares), Van Eck Associates Corp (-223.65K shares), D. E. Shaw & Co., Inc. (-168.01K shares) and Mgo One Seven LLC (-108.09K shares).
Per Business Quant, the top 10 investors in MAIN for the quarter ended June 30, 2026 were T. Rowe Price Associates Inc (3.34Mn shares), Van Eck Associates Corp (1.89Mn shares), UBS Group AG (1.39Mn shares), Legal & General Group PLC (835.06K shares), Morgan Stanley (786.28K shares), Qube Research & Technologies Ltd (654.17K shares), Invesco Ltd. (553.97K shares), Adell Harriman & Carpenter Inc (499K shares), Muzinich & Co., Inc. (495.92K shares) and BlackRock, Inc. (403.62K shares).

Form 13F Holdings

398 Institutional Holders

Report period 30 Jun, 2026

Total shares held 22.61Mn

Of outstanding 24.22%

#	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	0.89%	▲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	0.53%	▲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 Templeton 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 398 holders