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.
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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 |
|---|---|---|
| TWO SIGMA INVESTMENTS, LP | 3.5M | 8.7% |
| BlackRock, Inc. | 2.8M | 6.9% |
| RENAISSANCE TECHNOLOGIES LLC | 2.1M | 5.2% |
| VICTORY CAPITAL MANAGEMENT INC | 2.0M | 5.0% |
| GOLDMAN SACHS GROUP INC | 2.0M | 4.9% |
| Philosophy Capital Management LLC | 1.8M | 4.3% |
| Focus Partners Wealth | 1.3M | 3.1% |
| Qube Research & Technologies Ltd | 1.2M | 2.8% |
| MORGAN STANLEY | 1.0M | 2.6% |
| First Eagle Investment Management, LLC | 1.0M | 2.5% |
| FEARNLEY ASSET MANAGEMENT AS | 1.0M | 2.5% |
| Encompass Capital Advisors LLC | 962.5K | 2.4% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 926.4K | 2.3% |
| Allianz Asset Management GmbH | 892.6K | 2.2% |
| Boston Partners | 788.2K | 1.9% |
| ACADIAN ASSET MANAGEMENT LLC | 788.1K | 1.9% |
| MARSHALL WACE, LLP | 786.7K | 1.9% |
| Artemis Investment Management LLP | 761.7K | 1.9% |
| Marex Group plc | 728.0K | 1.8% |
| Bridgewater Associates, LP | 718.1K | 1.8% |
| JPMORGAN CHASE & CO | 675.6K | 1.7% |
| CITADEL ADVISORS LLC | 594.2K | 1.5% |
| D. E. Shaw & Co., Inc. | 591.3K | 1.5% |
| DNB Asset Management AS | 585.9K | 1.4% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 578.6K | 1.4% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 600.5K | 2.8M | +2.2M |
| First Eagle Investment Management, LLC | New | 0 | 1.0M | +1.0M |
| 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 plc | 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 |
| 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 |
| BANK OF AMERICA CORP /DE/ | Reduced | 565.6K | 376.3K | -189.3K |
| Jump Financial, LLC | Reduced | 219.5K | 31.4K | -188.1K |
| Counterpoint Mutual Funds LLC | Reduced | 208.4K | 24.7K | -183.7K |
| Campbell & CO Investment Adviser LLC | Sold Out | 183.5K | 0 | -183.5K |
| CITADEL ADVISORS LLC | Increased | 411.2K | 594.2K | +183.0K |
| UBS Group AG | Increased | 203.9K | 375.2K | +171.3K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 757.4K | 926.4K | +169.0K |
| Bridgewater Associates, LP | Increased | 551.3K | 718.1K | +166.7K |
| DNB Asset Management AS | Reduced | 743.8K | 585.9K | -157.9K |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Reduced | 522.5K | 367.7K | -154.9K |
| Hartree Partners, LP | Sold Out | 150.0K | 0 | -150.0K |
| WEXFORD CAPITAL LP | New | 0 | 144.8K | +144.8K |
| ExodusPoint Capital Management, LP | Sold Out | 140.2K | 0 | -140.2K |
| Focus Partners Wealth | Increased | 1.1M | 1.3M | +123.8K |
| Philosophy Capital Management LLC | Reduced | 1.9M | 1.8M | -121.8K |
| VICTORY CAPITAL MANAGEMENT INC | Increased | 1.9M | 2.0M | +107.1K |
| Aquatic Capital Management LLC | Reduced | 115.5K | 11.1K | -104.4K |
| Allianz Asset Management GmbH | Increased | 799.4K | 892.6K | +93.1K |
| GSA CAPITAL PARTNERS LLP | Reduced | 269.8K | 178.0K | -91.8K |
| Marnell Management LLC | Increased | 430.3K | 515.7K | +85.4K |
| SEI INVESTMENTS CO | New | 0 | 73.2K | +73.2K |
| Qube Research & Technologies Ltd | Increased | 1.1M | 1.2M | +69.8K |
| NEW YORK STATE COMMON RETIREMENT FUND | New | 0 | 65.9K | +65.9K |
| WINTON GROUP Ltd | Reduced | 105.6K | 42.6K | -63.0K |
| CAPITAL FUND MANAGEMENT S.A. | Increased | 22.4K | 83.9K | +61.5K |
| Y-Intercept (Hong Kong) Ltd | Reduced | 144.9K | 83.8K | -61.2K |
| Cetera Investment Advisers | Reduced | 65.3K | 8.3K | -57.0K |
| FEARNLEY ASSET MANAGEMENT AS | Increased | 951.2K | 1.0M | +53.0K |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | Increased | 4.3K | 54.9K | +50.6K |
| Point Nemo Capital, LLC | New | 0 | 47.1K | +47.1K |
| Russell Investments Group, Ltd. | Reduced | 379.5K | 333.9K | -45.6K |
| Engineers Gate Manager LP | Reduced | 313.1K | 268.0K | -45.1K |
| SG Americas Securities, LLC | Increased | 8.1K | 51.5K | +43.4K |
| KESTRA PRIVATE WEALTH SERVICES, LLC | New | 0 | 40.5K | +40.5K |
| Impala Asset Management LLC | Reduced | 120.0K | 80.5K | -39.5K |
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.