BCSF Bain Capital Specialty Finance, Inc.
Bain Capital Specialty Finance, Inc. (BCSF) Institutional Ownership
What the institutions did with BCSF last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended September 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Muzinich & Co., Inc. | 880.7K | 21.5% |
| Columbus Macro, LLC | 641.7K | 15.6% |
| Sumitomo Mitsui Trust Group, Inc. | 625.2K | 15.2% |
| Hennion & Walsh Asset Management, Inc. | 327.8K | 8.0% |
| Y-Intercept (Hong Kong) Ltd | 176.5K | 4.3% |
| Kestra Advisory Services, LLC | 120.6K | 2.9% |
| HAGER INVESTMENT MANAGEMENT SERVICES, LLC | 108.2K | 2.6% |
| Curated Wealth Partners LLC | 100.0K | 2.4% |
| NORDEN GROUP LLC | 96.4K | 2.4% |
| CONFLUENCE INVESTMENT MANAGEMENT LLC | 90.2K | 2.2% |
| United Advisor Group, LLC | 71.3K | 1.7% |
| Closed-End Fund Advisors, Inc. | 70.0K | 1.7% |
| Lido Advisors, LLC | 54.4K | 1.3% |
| Farther Finance Advisors, LLC | 52.0K | 1.3% |
| Garner Asset Management Corp | 50.9K | 1.2% |
| Privium Fund Management (UK) Ltd | 47.0K | 1.1% |
| Diversify Advisory Services, LLC | 42.8K | 1.0% |
| DIVERSIFY WEALTH MANAGEMENT, LLC | 42.8K | 1.0% |
| Cambridge Investment Research Advisors, Inc. | 41.9K | 1.0% |
| COMMONWEALTH EQUITY SERVICES, LLC | 41.1K | 1.0% |
| Foster Victor Wealth Advisors, LLC | 33.3K | 0.8% |
| BI Asset Management Fondsmaeglerselskab A/S | 30.1K | 0.7% |
| Beaumont Financial Advisors, LLC | 29.2K | 0.7% |
| INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC | 28.0K | 0.7% |
| Advisor OS, LLC | 24.7K | 0.6% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Columbus Macro, LLC | Increased | 451.3K | 641.7K | +190.4K |
| Y-Intercept (Hong Kong) Ltd | New | 0 | 176.5K | +176.5K |
| Cambridge Investment Research Advisors, Inc. | Reduced | 100.0K | 41.9K | -58.1K |
| Privium Fund Management (UK) Ltd | Reduced | 95.6K | 47.0K | -48.6K |
| Hennion & Walsh Asset Management, Inc. | Reduced | 370.1K | 327.8K | -42.4K |
| INDEPENDENT FINANCIAL GROUP, LLC | Sold Out | 35.4K | 0 | -35.4K |
| Muzinich & Co., Inc. | Increased | 846.8K | 880.7K | +34.0K |
| Straight Path Wealth Management | New | 0 | 20.0K | +20.0K |
| MERIDIAN INVESTMENT COUNSEL INC. | Sold Out | 17.5K | 0 | -17.5K |
| COMMONWEALTH EQUITY SERVICES, LLC | Reduced | 56.9K | 41.1K | -15.9K |
| Farther Finance Advisors, LLC | Increased | 37.4K | 52.0K | +14.6K |
| Garner Asset Management Corp | Reduced | 65.4K | 50.9K | -14.5K |
| PARK AVENUE SECURITIES LLC | New | 0 | 12.0K | +12.0K |
| B. Riley Wealth Advisors, Inc. | Sold Out | 10.8K | 0 | -10.8K |
| FIFTH THIRD BANCORP | Reduced | 31.9K | 21.2K | -10.8K |
| Bank of New York Mellon Corp | New | 0 | 10.4K | +10.4K |
| SIMPLEX TRADING, LLC | Increased | 292 | 8.0K | +7.7K |
| Sumitomo Mitsui Trust Group, Inc. | Increased | 617.8K | 625.2K | +7.4K |
| HAGER INVESTMENT MANAGEMENT SERVICES, LLC | Reduced | 114.9K | 108.2K | -6.7K |
| SeaCrest Wealth Management, LLC | Reduced | 17.1K | 10.8K | -6.3K |
| Cottage Street Advisors LLC | Reduced | 17.0K | 11.0K | -6.0K |
| SUMMIT SECURITIES GROUP LLC | New | 0 | 5.9K | +5.9K |
| Closed-End Fund Advisors, Inc. | Reduced | 74.2K | 70.0K | -4.1K |
| US BANCORP \DE\ | New | 0 | 4.0K | +4.0K |
| United Advisor Group, LLC | Reduced | 74.9K | 71.3K | -3.6K |
| PENSION & WEALTH MANAGEMENT ADVISORS, INC. | Increased | 121 | 3.4K | +3.2K |
| Formidable Asset Management, LLC | Reduced | 14.2K | 11.3K | -3.0K |
| State of Alaska, Department of Revenue | New | 0 | 2.6K | +2.6K |
| CONFLUENCE INVESTMENT MANAGEMENT LLC | Increased | 87.6K | 90.2K | +2.5K |
| Onyx Bridge Wealth Group LLC | Reduced | 24.4K | 22.1K | -2.3K |
| Foster Victor Wealth Advisors, LLC | Increased | 31.3K | 33.3K | +2.0K |
| M.E. ALLISON & CO., INC. | Reduced | 24.6K | 22.7K | -1.9K |
| Beaumont Financial Advisors, LLC | Reduced | 31.0K | 29.2K | -1.8K |
| First Heartland Consultants, Inc. | Increased | 10.1K | 11.7K | +1.6K |
| BI Asset Management Fondsmaeglerselskab A/S | Increased | 28.9K | 30.1K | +1.2K |
| Advisor OS, LLC | Increased | 23.8K | 24.7K | +886 |
| NORDEN GROUP LLC | Reduced | 97.2K | 96.4K | -780 |
| Diversify Advisory Services, LLC | Increased | 42.0K | 42.8K | +760 |
| DIVERSIFY WEALTH MANAGEMENT, LLC | Increased | 42.0K | 42.8K | +760 |
| GK Wealth Management LLC | New | 0 | 523 | +523 |
| AdvisorNet Financial, Inc | Sold Out | 500 | 0 | -500 |
| Triumph Capital Management | Increased | 8.1K | 8.4K | +375 |
| Lido Advisors, LLC | Increased | 54.3K | 54.4K | +108 |
| Kestra Advisory Services, LLC | Reduced | 120.7K | 120.6K | -92 |
| Caitong International Asset Management Co., Ltd | Increased | 30 | 37 | +7 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.