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GRAN TIERRA ENERGY INC
GRAN TIERRA ENERGY INC. Institutional holdings reported to the SEC.

Institutional Holders (2014Q1)
Portfolio Summary: 177 Institutional holders with a total value of $1,123,693,287.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FMR LLC 15,214,930 114,212,000 10.16%
2 WASATCH ADVISORS LP 10,715,505 80,152,000 7.13%
3 Amber Capital Management LP 10,615,988 79,776,000 7.10%
4 CANADA PENSION PLAN INVESTMENT BOARD 9,852,860 74,085,000 6.59%
5 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 6,334,500 47,382,060 4.22%
6 JPMORGAN CHASE & CO 5,381,803 40,256,000 3.58%
7 ROYAL BANK OF CANADA 4,957,145 37,080,000 3.30%
8 Invesco Ltd. 4,838,860 36,350,000 3.23%
9 Grantham, Mayo, Van Otterloo & Co. LLC 4,756,000 35,764,000 3.18%
10 I.G. INVESTMENT MANAGEMENT, LTD. 4,514,059 33,899,000 3.02%
11 FRANKLIN RESOURCES INC 3,873,950 28,981,000 2.58%
12 SCHRODER INVESTMENT MANAGEMENT GROUP 3,349,660 25,055,457 2.23%
13 Cumberland Partners Ltd 3,172,750 23,732,000 2.11%
14 CANADA LIFE ASSURANCE Co 2,869,563 21,405,000 1.90%
15 AMERICAN CENTURY COMPANIES INC 2,767,847 20,703,000 1.84%
16 VANGUARD GROUP INC 2,705,310 20,236,000 1.80%
17 Grandeur Peak Global Advisors, LLC 2,556,725 19,124,000 1.70%
18 PUBLIC SECTOR PENSION INVESTMENT BOARD 2,499,800 18,798,000 1.67%
19 NORGES BANK 2,273,975 17,009,000 1.51%
20 Numeric Investors LLC 2,184,432 16,340,000 1.45%
21 AGF INVESTMENTS INC. 2,027,823 15,232,000 1.36%
22 RENAISSANCE GROUP LLC 1,903,659 14,239,000 1.27%
23 Polar Asset Management Partners Inc. 1,761,932 13,179,000 1.17%
24 WCM INVESTMENT MANAGEMENT, LLC 1,646,183 12,314,000 1.10%
25 MORGAN STANLEY 1,640,338 12,270,000 1.09%
26 EdgePoint Investment Group Inc. 1,487,400 11,171,000 0.99%
27 TD ASSET MANAGEMENT INC 1,412,300 10,620,000 0.95%
28 RENAISSANCE TECHNOLOGIES LLC 1,329,400 9,949,000 0.89%
29 NORTHERN TRUST CORP 1,235,578 9,242,000 0.82%
30 Tourbillon Capital Partners, L.P. 1,214,520 9,085,000 0.81%
31 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 1,069,400 8,020,000 0.71%
32 RUSSELL FRANK CO/ 1,037,373 7,788,000 0.69%
33 LIBRA ADVISORS LLC 947,180 7,085,000 0.63%
34 WHITEBOX ADVISORS LLC 921,318 6,891,000 0.61%
35 SYSTEMATIC FINANCIAL MANAGEMENT LP 919,810 6,880,000 0.61%
36 Bocage Capital, LLC 895,836 6,701,000 0.60%
37 O'SHAUGHNESSY ASSET MANAGEMENT, LLC 793,509 5,952,000 0.53%
38 AJO, LP 787,800 5,893,000 0.52%
39 TWO SIGMA ADVISERS, LP 787,200 5,888,000 0.52%
40 CREDIT SUISSE AG/ 759,841 5,683,000 0.51%
41 BOGLE INVESTMENT MANAGEMENT L P /DE/ 749,266 5,604,000 0.50%
42 DRIEHAUS CAPITAL MANAGEMENT LLC 693,828 5,190,000 0.46%
43 QS BATTERYMARCH FINANCIAL MANAGEMENT, INC 686,700 5,165,000 0.46%
44 USCA RIA LLC 674,850 5,048,000 0.45%
45 PRICE T ROWE ASSOCIATES INC /MD/ 637,860 4,771,000 0.42%
46 DREMAN VALUE MANAGEMENT, L L C 623,701 4,665,000 0.42%
47 NEW YORK STATE COMMON RETIREMENT FUND 586,750 4,389,000 0.39%
48 TWO SIGMA INVESTMENTS, LP 569,607 4,261,000 0.38%
49 Pinnacle Summer Investments, Inc. 574,100 4,105,000 0.37%
50 PARAMETRIC PORTFOLIO ASSOCIATES LLC 495,749 3,708,000 0.33%
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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.