Gran Tierra Energy Inc: Ownership

Ownership Information
Shares Outstanding 216.00 Mil
Institutional Ownership (%)39.28
Top 10 Institutions (%)23.60
Mutual Fund Ownership (%)7.42
5%/Insider Ownership (%)15.04
Float (%)84.96
Ownership Activity
Description# of HoldersShares
Total Positions 12084,836,080
New Positions330
Soldout Positions380
Net Position Change210,790,076
Buyers6826,977,382
Sellers66-16,187,306
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
Pyramis Global Advisors, LLC 11,152,920 6,170,180 123.8 29,205,694 5.2 0.1 09-30-09
BlackRock Institutional Trust Company, N.A. 8,385,705 639,227 8.3 8,159,184 3.9 0.0 09-30-09
Ingalls & Snyder LLC (Asset Management) 8,064,098 -1,364,469 -14.5 6,984,443 3.7 3.4 12-31-09
Capital World Investors 4,950,000 4,950,000 100.0 20,592,000 2.3 0.0 09-30-09
State Street Global Advisors (US) 4,075,392 787,251 23.9 5,609,545 1.9 0.0 09-30-09
Cambrian Capital LP 3,289,875 0 0.0 2,335,811 1.5 3.2 09-30-09
Invesco Trimark Ltd. 3,106,714 3,106,714 100.0 12,923,930 1.4 0.1 09-30-09
Jones Heward Investment Counsel Inc. 2,896,560 675,400 30.4 7,357,263 1.3 0.1 12-31-09
Goodman & Company, Investment Counsel 2,563,000 691,700 37.0 4,206,095 1.2 0.1 09-30-09
I. G. Investment Management, Ltd. 2,547,810 680,210 36.4 4,155,670 1.2 0.1 09-30-09
Soros Fund Management, L.L.C. 2,500,000 1,400,000 127.3 6,605,000 1.2 0.3 09-30-09
CPP Investment Board 2,480,910 -1,319,700 -34.7 -2,791,519 1.1 0.1 09-30-09
Royce & Associates, LLC 1,814,800 25,000 1.4 1,374,758 0.8 0.1 09-30-09
Northern Trust Investments, N.A. 1,750,132 466,206 36.3 2,851,004 0.8 0.0 09-30-09
Mason Hill Advisors, LLC 1,704,600 0 0.0 2,676,222 0.8 8.8 12-31-09
*Category Headings:
Shs Held - shares held at report date
Shs Chg - position change within reporting period
%Chg - % change
$Chg - market value of the position change
%Out - % of shares outstanding
%Port - % Portfolio
Rpt Date - report date
Page generated 2/10/2010 7:37 AM Eastern Time