Dark
Light
System
Security
ECOPETROL S A
ECOPETROL S A. Institutional holdings reported to the SEC.

Institutional Holders (2015Q3)
Portfolio Summary: 105 Institutional holders with a total value of $322,781,935.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 WELLINGTON MANAGEMENT GROUP LLP 3,940,266 33,886,000 10.50%
2 VANGUARD GROUP INC 3,309,658 28,462,000 8.82%
3 CREDIT SUISSE AG/ 2,914,252 25,062,000 7.76%
4 SCHRODER INVESTMENT MANAGEMENT GROUP 2,821,950 24,269,000 7.52%
5 RENAISSANCE TECHNOLOGIES LLC 2,661,275 22,887,000 7.09%
6 STATE STREET CORP 2,322,328 19,971,000 6.19%
7 JPMORGAN CHASE & CO 2,083,819 17,921,000 5.55%
8 Grantham, Mayo, Van Otterloo & Co. LLC 1,518,300 13,057,000 4.05%
9 DIMENSIONAL FUND ADVISORS LP 1,506,150 12,952,000 4.01%
10 GOLDMAN SACHS GROUP INC 1,383,781 11,901,000 3.69%
11 BANK OF AMERICA CORP /DE/ 1,330,091 11,439,000 3.54%
12 PARAMETRIC PORTFOLIO ASSOCIATES LLC 1,225,226 10,537,000 3.26%
13 Legal & General Group Plc 1,014,662 8,731,000 2.70%
14 BNP PARIBAS FINANCIAL MARKETS 769,743 6,619,790 2.05%
15 BlackRock Fund Advisors 759,362 6,531,000 2.02%
16 BlackRock Group LTD 710,107 6,106,000 1.89%
17 BlueCrest Capital Management Ltd 641,280 5,515,000 1.71%
18 Global X Management CO LLC 488,591 4,202,000 1.30%
19 APG Asset Management N.V. 423,300 3,640,000 1.13%
20 GUGGENHEIM CAPITAL LLC 420,610 3,617,000 1.12%
21 ACADIAN ASSET MANAGEMENT LLC 397,754 3,421,000 1.06%
22 HSBC HOLDINGS PLC 350,997 3,019,000 0.94%
23 ABERDEEN ASSET MANAGEMENT PLC/UK 316,100 2,718,000 0.84%
24 Aperio Group, LLC 313,813 2,699,000 0.84%
25 D. E. Shaw & Co., Inc. 258,242 2,221,000 0.69%
26 NORTHERN TRUST CORP 255,322 2,196,000 0.68%
27 O'SHAUGHNESSY ASSET MANAGEMENT, LLC 250,263 2,152,000 0.67%
28 PANAGORA ASSET MANAGEMENT INC 223,030 1,918,000 0.59%
29 Advisors Asset Management, Inc. 213,639 1,837,000 0.57%
30 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 212,864 1,830,000 0.57%
31 DEUTSCHE BANK AG\ 213,062 1,830,000 0.57%
32 ALPS ADVISORS INC 20,216 1,739,000 0.54%
33 Zurcher Kantonalbank (Zurich Cantonalbank) 181,358 1,560,000 0.48%
34 HARDING LOEVNER LP 153,500 1,320,000 0.41%
35 MORGAN STANLEY 137,826 1,185,000 0.37%
36 World Asset Management Inc 106,547 916,000 0.28%
37 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 106,390 915,000 0.28%
38 COMERICA BANK 105,465 907,000 0.28%
39 DEPRINCE RACE & ZOLLO INC 88,850 764,000 0.24%
40 AMP Capital Investors Ltd 81,200 687,000 0.21%
41 UBS Group AG 78,456 674,000 0.21%
42 UBS Group AG 64,900 558,000 0.17% Call
43 MILLENNIUM MANAGEMENT LLC 55,660 479,000 0.15%
44 CoreCommodity Management, LLC 52,113 448,000 0.14%
45 JANE STREET GROUP, LLC 49,421 425,000 0.13%
46 BlackRock Finance, Inc. 48,089 414,000 0.13%
47 SUSQUEHANNA INTERNATIONAL GROUP, LLP 47,600 409,000 0.13% Put
48 LSV ASSET MANAGEMENT 39,500 339,000 0.11%
49 CAPSTONE ASSET MANAGEMENT CO 37,231 320,000 0.10%
50 ALLIANCEBERNSTEIN L.P. 34,404 296,000 0.09%
Page 1 of 3

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.