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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1273441	Gran Tierra Energy Inc.	GTE	Crude Petroleum & Natural Gas (1311)	000000000

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1397101	Dana Coffield	C/O Gran Tierra Energy Inc. 300, 625 11Th Avenue S.w. Calgary A0 T2R 0E1	Ceo And President	Yes	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2011-12-13	200,000	$5.03	1,961,738	No	4	S	Direct
Common Stock	Disposition	2011-12-14	107,500	$4.74	1,854,238	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Direct
No	4	S	Direct

Footnotes

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.89 to $5.12, inclusive. The undersigned hereby undertakes to provide the Issuer, any security holder of the Issuer or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.71 to $4.79, inclusive. The undersigned hereby undertakes to provide the Issuer, any security holder of the Issuer or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.