EC Ecopetrol S.A.
Ecopetrol S.A. (EC) Institutional Ownership
What the institutions did with EC 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. | 4.1M | 14.5% |
| MARSHALL WACE, LLP | 2.6M | 9.3% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.8M | 6.5% |
| VANGUARD FIDUCIARY TRUST CO | 1.8M | 6.4% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.2M | 4.4% |
| TWO SIGMA INVESTMENTS, LP | 996.4K | 3.5% |
| AMERICAN CENTURY COMPANIES INC | 962.8K | 3.4% |
| RENAISSANCE TECHNOLOGIES LLC | 899.4K | 3.2% |
| GOLDMAN SACHS GROUP INC | 890.8K | 3.2% |
| MORGAN STANLEY | 884.8K | 3.1% |
| Brevan Howard Capital Management LP | 828.3K | 2.9% |
| MILLENNIUM MANAGEMENT LLC | 747.5K | 2.6% |
| Aventail Capital Group, LP | 747.1K | 2.6% |
| BARCLAYS PLC | 736.9K | 2.6% |
| Connor, Clark & Lunn Investment Management Ltd. | 688.1K | 2.4% |
| UBS Group AG | 552.2K | 2.0% |
| Truffle Hound Capital, LLC | 430.0K | 1.5% |
| Banco BTG Pactual S.A. | 402.8K | 1.4% |
| GROUP ONE TRADING LLC | 372.0K | 1.3% |
| STATE STREET CORP | 327.0K | 1.2% |
| CWA Asset Management Group, LLC | 309.3K | 1.1% |
| Fisher Asset Management, LLC | 250.7K | 0.9% |
| JPMORGAN CHASE & CO | 244.4K | 0.9% |
| D. E. Shaw & Co., Inc. | 202.8K | 0.7% |
| Nuveen, LLC | 199.1K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| MARSHALL WACE, LLP | Increased | 570.3K | 2.6M | +2.1M |
| BlackRock, Inc. | Increased | 2.7M | 4.1M | +1.4M |
| D. E. Shaw & Co., Inc. | Reduced | 1.3M | 202.8K | -1.1M |
| Connor, Clark & Lunn Investment Management Ltd. | Reduced | 1.5M | 688.1K | -860.8K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 1.9M | 996.4K | -856.9K |
| Brevan Howard Capital Management LP | New | 0 | 828.3K | +828.3K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 239.0K | 899.4K | +660.4K |
| JANE STREET GROUP, LLC | Sold Out | 511.4K | 0 | -511.4K |
| BARCLAYS PLC | Increased | 270.5K | 736.9K | +466.4K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Sold Out | 436.5K | 0 | -436.5K |
| MILLENNIUM MANAGEMENT LLC | Increased | 324.1K | 747.5K | +423.4K |
| JPMORGAN CHASE & CO | Reduced | 632.3K | 244.4K | -387.9K |
| MORGAN STANLEY | Increased | 537.6K | 884.8K | +347.2K |
| UBS Group AG | Increased | 224.6K | 552.2K | +327.6K |
| Wealth High Governance Asset Management Ltda. | Sold Out | 298.5K | 0 | -298.5K |
| Aventail Capital Group, LP | Increased | 460.2K | 747.1K | +286.9K |
| XTX Topco Ltd | Reduced | 312.1K | 32.9K | -279.2K |
| GROUP ONE TRADING LLC | Increased | 131.1K | 372.0K | +240.9K |
| Banco BTG Pactual S.A. | Increased | 186.0K | 402.8K | +216.8K |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Sold Out | 199.9K | 0 | -199.9K |
| Nuveen, LLC | New | 0 | 199.1K | +199.1K |
| Engineers Gate Manager LP | Reduced | 234.0K | 46.8K | -187.2K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 1.7M | 1.8M | +177.0K |
| SIMPLEX TRADING, LLC | Reduced | 180.8K | 17.7K | -163.1K |
| BW Gestao de Investimentos Ltda. | Sold Out | 161.2K | 0 | -161.2K |
| Wealth High Governance Capital Ltda | Sold Out | 161.2K | 0 | -161.2K |
| OSAIC HOLDINGS, INC. | Increased | 40.5K | 192.6K | +152.1K |
| LAZARD ASSET MANAGEMENT LLC | New | 0 | 144.7K | +144.7K |
| MIRABELLA FINANCIAL SERVICES LLP | New | 0 | 129.0K | +129.0K |
| WELLINGTON MANAGEMENT GROUP LLP | New | 0 | 120.0K | +120.0K |
| Truffle Hound Capital, LLC | Reduced | 550.0K | 430.0K | -120.0K |
| Grantham, Mayo, Van Otterloo & Co. LLC | Reduced | 152.1K | 34.7K | -117.4K |
| CITADEL ADVISORS LLC | Sold Out | 113.9K | 0 | -113.9K |
| MACKENZIE FINANCIAL CORP | New | 0 | 112.2K | +112.2K |
| CITIGROUP INC | Increased | 15.2K | 126.2K | +111.1K |
| Pekin Hardy Strauss, Inc. | Sold Out | 108.5K | 0 | -108.5K |
| SELDON CAPITAL LP | New | 0 | 100.0K | +100.0K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 17.4K | 113.6K | +96.2K |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | Reduced | 130.0K | 43.3K | -86.7K |
| AMERICAN CENTURY COMPANIES INC | Increased | 884.1K | 962.8K | +78.7K |
| Sagil Capital LLP | New | 0 | 74.9K | +74.9K |
| Fisher Asset Management, LLC | Reduced | 323.5K | 250.7K | -72.8K |
| Jump Financial, LLC | Sold Out | 67.7K | 0 | -67.7K |
| Squarepoint Ops LLC | Reduced | 79.7K | 12.9K | -66.8K |
| SG Americas Securities, LLC | New | 0 | 66.7K | +66.7K |
| Rathbones Group PLC | Sold Out | 65.3K | 0 | -65.3K |
| CWA Asset Management Group, LLC | Increased | 248.4K | 309.3K | +60.9K |
| Itau Unibanco Holding S.A. | New | 0 | 56.3K | +56.3K |
| Cetera Investment Advisers | New | 0 | 55.3K | +55.3K |
| Walleye Capital LLC | Reduced | 53.5K | 145 | -53.3K |
| Walleye Trading LLC | Increased | 94.6K | 145.5K | +50.9K |
| TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU SA | New | 0 | 49.5K | +49.5K |
| Caitong International Asset Management Co., Ltd | Reduced | 51.1K | 4.8K | -46.3K |
| Liontrust Investment Partners LLP | Reduced | 56.0K | 10.0K | -46.0K |
| HRT FINANCIAL LP | New | 0 | 45.0K | +45.0K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 1.2M | 1.2M | +44.8K |
| Compound Planning, Inc. | Sold Out | 44.3K | 0 | -44.3K |
| Patriot Financial Group Insurance Agency, LLC | Sold Out | 43.0K | 0 | -43.0K |
| Point72 Asset Management, L.P. | Sold Out | 41.1K | 0 | -41.1K |
| GSA CAPITAL PARTNERS LLP | New | 0 | 39.2K | +39.2K |
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.