MAIN — MAIN STREET CAPITAL CORP - US
Public company
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying MAIN?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 1 tracked investors who changed their MAIN position last quarter, 0 bought and 1 sold (0% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 57/100 in a Contraction regime).
- +3 tracked investors reported holding MAIN at their latest filing
- +Macro Health is 57/100 in a Contraction regime — historically acceptable for this sectorsource
- −1 tracked investor reduced or exited last quarter (0 reduced, 1 sold out)
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 9/6/2026.
About MAIN STREET CAPITAL CORP - US (MAIN)
MAIN STREET CAPITAL CORP - US (MAIN) appears in the most recent 13F filings of 3 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $20M. Across recent filings, tracked investors recorded 1 new positions, 0 increased, 0 reduced, and 1 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in MAIN
How many top investors track MAIN
A small number of top investors own this.
MAIN Ownership Composition
How MAIN STREET CAPITAL CORP - US is held across tracked investor types, based on reported 13F positions.
- Multi-Strategy / Quant73.9%
- Macro26.1%
Tracked investors currently reporting MAIN
1 tracked investor has since exited this position — listed separately below.
- Ken GriffinJun 30, 2026Citadel AdvisorsShares181.2KValue$9.4M% Portfolio0.00%
- Paul Tudor JonesJun 30, 2026Tudor Investment CorpShares111.6KValue$5.8M% Portfolio0.01%
- Izzy EnglanderJun 30, 2026Millennium ManagementShares134.5KValue$7M% Portfolio0.00%
Previously held MAIN
These investors reported MAIN in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.
| Investor | Firm | Last reported shares | Value then | Last held |
|---|---|---|---|---|
| Ray Dalio | Bridgewater Associates | 26K | $1.1M | Dec 31, 2023 |
Recent activity
- New$1.1MFeb 14, 2024
- Sold$0(-100.00%)May 14, 2024
Frequently asked questions
- How many institutional investors hold MAIN?
- 3 tracked institutional investors disclosed a position in MAIN (MAIN STREET CAPITAL CORP - US) in their most recent 13F filing.
- Who is the largest institutional holder of MAIN?
- Ken Griffin, Citadel Advisors, holds the largest disclosed position in MAIN, valued at $20M.
- Did institutional ownership of MAIN increase or decrease?
- Across recent 13F filings, tracked investors recorded 1 new positions, 0 increased, 0 reduced, and 1 fully exited MAIN.
- Where does this MAIN ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.