GBDC Golub Capital BDC, Inc.
Golub Capital BDC, Inc. (GBDC) Institutional Ownership
What the institutions did with GBDC 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 June 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 |
|---|---|---|
| STRS OHIO | 17.6M | 14.5% |
| HighTower Advisors, LLC | 7.3M | 6.1% |
| VAN ECK ASSOCIATES CORP | 4.7M | 3.9% |
| Sound Income Strategies, LLC | 3.9M | 3.2% |
| UBS Group AG | 3.8M | 3.2% |
| Sage Mountain Advisors LLC | 3.8M | 3.2% |
| OMERS ADMINISTRATION Corp | 3.7M | 3.0% |
| BANK OF AMERICA CORP /DE/ | 3.4M | 2.8% |
| JPMORGAN CHASE & CO | 3.4M | 2.8% |
| ARES MANAGEMENT LLC | 3.4M | 2.8% |
| Allen Investment Management, LLC | 3.2M | 2.6% |
| Corient Private Wealth LP | 3.2M | 2.6% |
| Rockefeller Capital Management L.P. | 2.8M | 2.3% |
| Generali Asset Management SPA SGR | 2.6M | 2.2% |
| Lalia Capital, LLC | 2.6M | 2.1% |
| Legal & General Group Plc | 2.4M | 2.0% |
| MORGAN STANLEY | 2.4M | 1.9% |
| Muzinich & Co., Inc. | 2.1M | 1.7% |
| Russell Investments Group, Ltd. | 1.8M | 1.5% |
| FRANKLIN RESOURCES INC | 1.7M | 1.4% |
| Sumitomo Mitsui Trust Group, Inc. | 1.6M | 1.3% |
| Arnhold LLC | 1.5M | 1.3% |
| Ensign Peak Advisors, Inc | 1.3M | 1.1% |
| BlackRock, Inc. | 1.3M | 1.0% |
| MAI Capital Management | 1.2M | 1.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Corient Private Wealth LP | Reduced | 4.5M | 3.2M | -1.4M |
| Ensign Peak Advisors, Inc | New | 0 | 1.3M | +1.3M |
| Nuveen, LLC | New | 0 | 931.7K | +931.7K |
| Boston Partners | Sold Out | 662.8K | 0 | -662.8K |
| CAZ INVESTMENTS LP | Increased | 30.0K | 536.7K | +506.7K |
| FRANKLIN RESOURCES INC | Increased | 1.1M | 1.7M | +505.1K |
| Russell Investments Group, Ltd. | Increased | 1.3M | 1.8M | +482.4K |
| North Ground Capital | Sold Out | 478.9K | 0 | -478.9K |
| VAN ECK ASSOCIATES CORP | Increased | 4.2M | 4.7M | +466.2K |
| STRS OHIO | Increased | 17.1M | 17.6M | +436.1K |
| LSV ASSET MANAGEMENT | Reduced | 845.9K | 409.9K | -436.0K |
| Arax Advisory Partners | Increased | 431.3K | 864.9K | +433.6K |
| MORGAN STANLEY | Increased | 2.0M | 2.4M | +376.9K |
| Border to Coast Pensions Partnership Ltd | Reduced | 625.0K | 300.0K | -325.0K |
| Janney Montgomery Scott LLC | Increased | 122.7K | 442.3K | +319.6K |
| BANK OF MONTREAL /CAN/ | Reduced | 1.1M | 753.3K | -303.2K |
| HighTower Advisors, LLC | Increased | 7.0M | 7.3M | +299.2K |
| ARES MANAGEMENT LLC | Increased | 3.1M | 3.4M | +298.8K |
| D. E. Shaw & Co., Inc. | Reduced | 953.2K | 684.4K | -268.8K |
| First National Trust Co | Sold Out | 264.2K | 0 | -264.2K |
| CITADEL ADVISORS LLC | Increased | 30.5K | 264.2K | +233.7K |
| UBS Group AG | Reduced | 4.1M | 3.8M | -208.0K |
| Legal & General Group Plc | Increased | 2.2M | 2.4M | +204.7K |
| TWO SIGMA INVESTMENTS, LP | Increased | 142.5K | 344.7K | +202.2K |
| IEQ CAPITAL, LLC | Increased | 259.0K | 458.4K | +199.4K |
| Waterloo Capital, L.P. | Reduced | 370.4K | 171.8K | -198.6K |
| Allen Investment Management, LLC | Reduced | 3.4M | 3.2M | -191.8K |
| MERCER GLOBAL ADVISORS INC /ADV | Increased | 366.7K | 557.9K | +191.2K |
| FIRST TRUST ADVISORS LP | Increased | 198.9K | 380.2K | +181.3K |
| Callodine Capital Management, LP | Reduced | 200.0K | 58.1K | -141.9K |
| JPMORGAN CHASE & CO | Reduced | 3.5M | 3.4M | -132.2K |
| Sound Income Strategies, LLC | Increased | 3.8M | 3.9M | +125.6K |
| Lansforsakringar Fondforvaltning AB (publ) | Sold Out | 124.3K | 0 | -124.3K |
| BANK OF AMERICA CORP /DE/ | Increased | 3.3M | 3.4M | +122.6K |
| LPL Financial LLC | Reduced | 479.1K | 363.8K | -115.3K |
| Abundance Wealth Counselors | Increased | 106.0K | 218.7K | +112.7K |
| WELLS FARGO & COMPANY/MN | Increased | 743.7K | 853.6K | +109.9K |
| Coastal Bridge Advisors, LLC | Reduced | 1.3M | 1.2M | -99.2K |
| OMERS ADMINISTRATION Corp | Increased | 3.6M | 3.7M | +90.6K |
| Bayshore Capital Advisors, LLC | Increased | 60.0K | 144.9K | +84.9K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | Reduced | 304.9K | 220.1K | -84.9K |
| ExodusPoint Capital Management, LP | Sold Out | 84.4K | 0 | -84.4K |
| NORTHERN TRUST CORP | New | 0 | 84.2K | +84.2K |
| Advisor OS, LLC | Reduced | 214.0K | 131.8K | -82.1K |
| Avestar Capital, LLC | New | 0 | 76.8K | +76.8K |
| Ascentis Independent Advisors | Sold Out | 75.2K | 0 | -75.2K |
| Squarepoint Ops LLC | Reduced | 84.3K | 10.3K | -74.0K |
| Sage Mountain Advisors LLC | Increased | 3.8M | 3.8M | +72.9K |
| Global Endowment Management, LP | Sold Out | 70.0K | 0 | -70.0K |
| Muzinich & Co., Inc. | Increased | 2.0M | 2.1M | +69.6K |
| BlackRock, Inc. | Increased | 1.2M | 1.3M | +64.4K |
| Lalia Capital, LLC | Increased | 2.5M | 2.6M | +63.4K |
| NEUBERGER BERMAN GROUP LLC | Reduced | 365.4K | 302.4K | -63.0K |
| COMMONWEALTH EQUITY SERVICES, LLC | Reduced | 500.5K | 438.6K | -61.9K |
| Next Capital Management LLC | Reduced | 567.2K | 505.4K | -61.8K |
| Family Manage LLC | Increased | 228.5K | 287.9K | +59.4K |
| Headlands Technologies LLC | Increased | 32.8K | 91.6K | +58.8K |
| STATE STREET CORP | Increased | 320.8K | 378.0K | +57.2K |
| CAXTON ASSOCIATES LLP | Reduced | 111.1K | 54.6K | -56.5K |
| Brevan Howard Capital Management LP | Sold Out | 56.0K | 0 | -56.0K |
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.