SBLK Star Bulk Carriers Corp.
Star Bulk Carriers Corp. (SBLK) Institutional Ownership
What the institutions did with SBLK 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.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| TWO SIGMA INVESTMENTS, LP | 3.5M | 8.8% |
| BlackRock, Inc. | 2.8M | 7.0% |
| RENAISSANCE TECHNOLOGIES LLC | 2.1M | 5.3% |
| VICTORY CAPITAL MANAGEMENT INC | 2.0M | 5.1% |
| GOLDMAN SACHS GROUP INC | 2.0M | 5.0% |
| Philosophy Capital Management LLC | 1.8M | 4.4% |
| Focus Partners Wealth | 1.3M | 3.2% |
| Qube Research & Technologies Ltd | 1.2M | 2.9% |
| MORGAN STANLEY | 1.0M | 2.6% |
| FEARNLEY ASSET MANAGEMENT AS | 1.0M | 2.5% |
| Encompass Capital Advisors LLC | 962.5K | 2.4% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 926.4K | 2.3% |
| Boston Partners | 788.2K | 2.0% |
| ACADIAN ASSET MANAGEMENT LLC | 788.1K | 2.0% |
| MARSHALL WACE, LLP | 786.7K | 2.0% |
| Artemis Investment Management LLP | 761.7K | 1.9% |
| Marex Group Ltd | 728.0K | 1.8% |
| Bridgewater Associates, LP | 718.1K | 1.8% |
| JPMORGAN CHASE & CO | 675.6K | 1.7% |
| Allianz Asset Management GmbH | 649.8K | 1.6% |
| CITADEL ADVISORS LLC | 594.2K | 1.5% |
| D. E. Shaw & Co., Inc. | 591.3K | 1.5% |
| DNB Asset Management AS | 585.9K | 1.5% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 578.6K | 1.4% |
| Marnell Management LLC | 515.7K | 1.3% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 600.5K | 2.8M | +2.2M |
| Encompass Capital Advisors LLC | New | 0 | 962.5K | +962.5K |
| COOPER CREEK PARTNERS MANAGEMENT LLC | Sold Out | 866.0K | 0 | -866.0K |
| Boston Partners | Reduced | 1.6M | 788.2K | -838.2K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 655 | 788.1K | +787.4K |
| Artemis Investment Management LLP | Increased | 75.8K | 761.7K | +685.9K |
| Marex Group Ltd | Increased | 126.0K | 728.0K | +602.0K |
| D. E. Shaw & Co., Inc. | Reduced | 1.2M | 591.3K | -582.6K |
| HRT FINANCIAL LP | Reduced | 771.2K | 205.4K | -565.8K |
| TWO SIGMA INVESTMENTS, LP | Increased | 3.0M | 3.5M | +517.1K |
| First Eagle Investment Management, LLC | New | 0 | 515.0K | +515.0K |
| MORGAN STANLEY | Reduced | 1.5M | 1.0M | -494.5K |
| MARSHALL WACE, LLP | Reduced | 1.2M | 786.7K | -430.3K |
| TUDOR INVESTMENT CORP ET AL | Reduced | 735.0K | 305.5K | -429.5K |
| JANE STREET GROUP, LLC | Reduced | 550.3K | 138.0K | -412.3K |
| Point72 Asset Management, L.P. | Reduced | 789.9K | 437.8K | -352.1K |
| DYMON ASIA CAPITAL (SINGAPORE) PTE. LTD. | Increased | 82.0K | 410.7K | +328.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 284.6K | 578.6K | +294.0K |
| Walleye Capital LLC | Reduced | 287.3K | 76 | -287.2K |
| CITIGROUP INC | Increased | 12.3K | 295.2K | +282.9K |
| GOLDMAN SACHS GROUP INC | Increased | 1.7M | 2.0M | +276.4K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 719.5K | 472.8K | -246.7K |
| XTX Topco Ltd | Reduced | 306.8K | 65.2K | -241.6K |
| J. Safra Sarasin Holding AG | New | 0 | 228.7K | +228.7K |
| SPROTT INC. | New | 0 | 204.8K | +204.8K |
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.