Skip to main content

Main Street Capital CORP

MAIN
Exchange
NYSE
SEC CIK
0001396440

In the last 90 days, Main Street Capital CORP insiders filed 1 open-market purchase and 1 sale; 401 institutions reported holding it in 13F filings for Q2 2026, worth $1.18B in total; no superinvestor holds it.

13F holders, Q3 2023

Institutional positions in Main Street Capital CORP as of Sep 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
292
+5 vs. Q2 2023
Shares held
17.6M
+1.13M (+6.8%) vs. Q2 2023
Total value
$716.5M
+$56.3M (+8.5%) vs. Q2 2023
New holders
31
119 more added
Sold out
26
68 more reduced

2 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MAIN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2023: 292 institutions
Q1 2021: 230 institutionsQ2 2021: 228 institutionsQ3 2021: 236 institutionsQ4 2021: 257 institutionsQ1 2022: 256 institutionsQ2 2022: 244 institutionsQ3 2022: 248 institutionsQ4 2022: 273 institutionsQ1 2023: 273 institutionsQ2 2023: 289 institutionsQ3 2023: 292 institutionsQ4 2023: 313 institutionsQ1 2024: 326 institutionsQ2 2024: 340 institutionsQ3 2024: 354 institutionsQ4 2024: 401 institutionsQ1 2025: 393 institutionsQ2 2025: 405 institutionsQ3 2025: 408 institutionsQ4 2025: 431 institutionsQ1 2026: 423 institutionsQ2 2026: 401 institutions
Value heldQ3 2023: $716.5M
Q1 2021: $511.5MQ2 2021: $488.5MQ3 2021: $508.1MQ4 2021: $558.7MQ1 2022: $546.5MQ2 2022: $533.6MQ3 2022: $491.5MQ4 2022: $571.7MQ1 2023: $617.8MQ2 2023: $660.3MQ3 2023: $716.5MQ4 2023: $752.3MQ1 2024: $804.4MQ2 2024: $869.4MQ3 2024: $931.0MQ4 2024: $1.10BQ1 2025: $1.07BQ2 2025: $1.17BQ3 2025: $1.27BQ4 2025: $1.26BQ1 2026: $1.24BQ2 2026: $1.18B
Institutions holding MAIN and their total value by quarter
QuarterHoldersValue
Q2 2026401$1.18B
Q1 2026423$1.24B
Q4 2025431$1.26B
Q3 2025408$1.27B
Q2 2025405$1.17B
Q1 2025393$1.07B
Q4 2024401$1.10B
Q3 2024354$931.0M
Q2 2024340$869.4M
Q1 2024326$804.4M
Q4 2023313$752.3M
Q3 2023292$716.5M
Q2 2023289$660.3M
Q1 2023273$617.8M
Q4 2022273$571.7M
Q3 2022248$491.5M
Q2 2022244$533.6M
Q1 2022256$546.5M
Q4 2021257$558.7M
Q3 2021236$508.1M
Q2 2021228$488.5M
Q1 2021230$511.5M

Institutions, Q3 2023

Shares, value and share of portfolio for each institution holding Main Street Capital CORP; share changes are against Q2 2023.

Institutions holding MAIN in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Bridgefront Capital, LLC0$00.00%−7,690−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−7,316−100.0%Sold out
Kalos Management, Inc.0$00.00%−7,225−100.0%Sold out
PFG Investments, LLC0$00.00%−6,863−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−5,836−100.0%Sold out
Squarepoint Ops LLC0$00.00%−5,334−100.0%Sold out
Segall Bryant & Hamill, LLC0$00.00%−5,177−100.0%Sold out
Tower Research Capital LLC (TRC)0$00.00%−3,334−100.0%Sold out
ICA Group Wealth Management, LLC0$00.00%−2,000−100.0%Sold out
Antonetti Capital Management LLC0$00.00%−600−100.0%Sold out
Prostatis Group LLC0$00.00%−20,335−100.0%Sold out
Castleview Partners, LLC0$00.00%−365−100.0%Sold out
PCA Investment Advisory Services Inc.0$00.00%−250−100.0%Sold out
Central Trust Co0$00.00%−200−100.0%Sold out
Oliver Lagore Vanvalin Investment Group0$00.00%−106−100.0%Sold out
Ridgewood Investments LLC0$00.00%−100−100.0%Sold out
Moisand Fitzgerald Tamayo, LLC0$00.00%−50−100.0%Sold out
Sofos Investments, Inc.0$00.00%−40−100.0%Sold out
Endurance Wealth Management, Inc.––––Not filed
Kistler-Tiffany Companies, LLC––––Not filed