KOS Kosmos Energy Ltd.
Kosmos Energy Ltd. (KOS) Institutional Ownership
What the institutions did with KOS 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 |
|---|---|---|
| BlackRock, Inc. | 56.0M | 13.0% |
| STATE STREET CORP | 29.5M | 6.8% |
| TWO SIGMA INVESTMENTS, LP | 25.4M | 5.9% |
| D. E. Shaw & Co., Inc. | 24.5M | 5.7% |
| Equinox Partners Investment Management LLC | 20.7M | 4.8% |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 18.8M | 4.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 17.1M | 4.0% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 13.8M | 3.2% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 12.0M | 2.8% |
| Grantham, Mayo, Van Otterloo & Co. LLC | 11.9M | 2.7% |
| Invesco Ltd. | 10.9M | 2.5% |
| DIMENSIONAL FUND ADVISORS LP | 9.6M | 2.2% |
| GOLDMAN SACHS GROUP INC | 8.5M | 2.0% |
| AMERICAN CENTURY COMPANIES INC | 8.0M | 1.9% |
| Davidson Kempner Capital Management LP | 8.0M | 1.9% |
| MILLENNIUM MANAGEMENT LLC | 7.4M | 1.7% |
| M&G PLC | 7.4M | 1.7% |
| MORGAN STANLEY | 7.4M | 1.7% |
| Nuveen, LLC | 7.3M | 1.7% |
| RENAISSANCE TECHNOLOGIES LLC | 7.0M | 1.6% |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.8M | 1.6% |
| UBS Group AG | 6.1M | 1.4% |
| NORTHERN TRUST CORP | 5.3M | 1.2% |
| Bridgewater Associates, LP | 4.7M | 1.1% |
| Boston Partners | 4.1M | 1.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| JANE STREET GROUP, LLC | Reduced | 11.7M | 93.3K | -11.6M |
| BlackRock, Inc. | Increased | 47.5M | 56.0M | +8.6M |
| AMERICAN CENTURY COMPANIES INC | Increased | 98.2K | 8.0M | +7.9M |
| TWO SIGMA INVESTMENTS, LP | Increased | 18.7M | 25.4M | +6.7M |
| Grantham, Mayo, Van Otterloo & Co. LLC | Reduced | 18.3M | 11.9M | -6.5M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 12.6M | 7.4M | -5.2M |
| Bridgewater Associates, LP | New | 0 | 4.7M | +4.7M |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 12.7M | 17.1M | +4.4M |
| CITADEL ADVISORS LLC | Reduced | 4.5M | 194.9K | -4.3M |
| D. E. Shaw & Co., Inc. | Increased | 20.4M | 24.5M | +4.2M |
| Monaco Asset Management SAM | Sold Out | 4.0M | 0 | -4.0M |
| Nuveen, LLC | Increased | 3.3M | 7.3M | +4.0M |
| FIRST TRUST ADVISORS LP | Reduced | 7.7M | 4.0M | -3.7M |
| Ghisallo Capital Management LLC | Sold Out | 3.7M | 0 | -3.7M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 8.6M | 12.0M | +3.4M |
| Russell Investments Group, Ltd. | Reduced | 5.9M | 2.6M | -3.2M |
| Covalis Capital LLP | Sold Out | 3.2M | 0 | -3.2M |
| AQR CAPITAL MANAGEMENT LLC | Increased | 1.3M | 4.1M | +2.8M |
| HRT FINANCIAL LP | Sold Out | 2.7M | 0 | -2.7M |
| BANK OF AMERICA CORP /DE/ | Reduced | 5.5M | 2.9M | -2.6M |
| DIMENSIONAL FUND ADVISORS LP | Increased | 7.1M | 9.6M | +2.5M |
| Walleye Capital LLC | Sold Out | 2.3M | 0 | -2.3M |
| JPMORGAN CHASE & CO | Reduced | 2.6M | 393.0K | -2.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | 4.2M | 2.3M | -1.9M |
| Nantahala Capital Management, LLC | Sold Out | 1.8M | 0 | -1.8M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Sold Out | 1.7M | 0 | -1.7M |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 5.3M | 7.0M | +1.7M |
| MORGAN STANLEY | Increased | 5.8M | 7.4M | +1.5M |
| Gotham Asset Management, LLC | Increased | 145.6K | 1.6M | +1.4M |
| J. Goldman & Co LP | Sold Out | 1.4M | 0 | -1.4M |
| Quadrature Capital Ltd | Reduced | 1.5M | 186.4K | -1.3M |
| UBS Group AG | Increased | 4.8M | 6.1M | +1.3M |
| ALGERT GLOBAL LLC | Increased | 1.3M | 2.5M | +1.2M |
| Squarepoint Ops LLC | Increased | 150.7K | 1.4M | +1.2M |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | Reduced | 20.1M | 18.8M | -1.2M |
| STATE STREET CORP | Increased | 28.2M | 29.5M | +1.2M |
| Quantbot Technologies LP | Reduced | 1.2M | 49.6K | -1.2M |
| NORTHERN TRUST CORP | Increased | 4.2M | 5.3M | +1.1M |
| FMR LLC | Increased | 54.5K | 1.1M | +1.1M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 2.3M | 3.4M | +1.0M |
| Thomist Capital Management, LP | Sold Out | 927.2K | 0 | -927.2K |
| ExodusPoint Capital Management, LP | Reduced | 1.1M | 177.3K | -919.1K |
| PLUSTICK MANAGEMENT LLC | New | 0 | 900.0K | +900.0K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | New | 0 | 808.3K | +808.3K |
| GeoSphere Capital Management, LLC | Increased | 2.0M | 2.8M | +775.0K |
| Aquatic Capital Management LLC | Reduced | 923.4K | 183.3K | -740.1K |
| GOLDMAN SACHS GROUP INC | Reduced | 9.3M | 8.5M | -729.7K |
| Man Group plc | Increased | 430.6K | 1.1M | +712.2K |
| MACKENZIE FINANCIAL CORP | New | 0 | 675.0K | +675.0K |
| Boston Partners | Reduced | 4.8M | 4.1M | -659.1K |
| XTX Topco Ltd | Reduced | 727.2K | 80.5K | -646.8K |
| Portolan Capital Management, LLC | Sold Out | 602.5K | 0 | -602.5K |
| CAXTON ASSOCIATES LLP | Reduced | 828.8K | 243.2K | -585.6K |
| Rafferty Asset Management, LLC | Reduced | 1.3M | 785.4K | -562.4K |
| SEI INVESTMENTS CO | Reduced | 1.5M | 1.0M | -515.8K |
| Aventail Capital Group, LP | Sold Out | 500.0K | 0 | -500.0K |
| WELLS FARGO & COMPANY/MN | Increased | 1.6M | 2.1M | +498.0K |
| WINTON GROUP Ltd | Sold Out | 487.2K | 0 | -487.2K |
| LMR Partners LLP | Increased | 1.0M | 1.5M | +468.4K |
| CenterBook Partners LP | Increased | 891.5K | 1.3M | +423.1K |
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.