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.
Sign in or subscribeLargest 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 |
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.