Gary Guidry, President and Chief Executive Officer bought 510 Gran Tierra Energy Inc. shares (PDMR dealing notification, UK MAR art. 19)

RNS Number : 7708Z

Gran Tierra Energy Inc.

21 October 2026

October 21, 2026

Gran Tierra Energy Inc.

(the "Company")

Notification of Transactions in the Company's Shares by Directors and Persons Discharging Managerial Responsibility

The Company announces the following transactions in the Company's common shares undertaken by directors / persons discharging managerial responsibility ("PDMRs").

This notification is made in accordance with the requirement of Article 19 of the EU Market Abuse Regulation.

1	Details of the person discharging managerial responsibilities / person closely associated
a)	Name	Gary Guidry, President and Chief Executive OfficerSebastien Morin, Chief Operating OfficerJim Evans, Executive Vice President, Corporate ServicesPhillip Abraham, Executive Vice President, Legal and Land
2	Reason for the notification
a)	Position/status	See 1 a) above
b)	Initial notification /Amendment	Initial notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	Gran Tierra Energy Inc.
b)	LEI	549300IH2S17MAIUCM32
4	Details of the transaction(s): section to be repeated for (i) each type of instrument; (ii) each type of transaction; (iii) each date; and (iv) each place where transactions have been conducted
a)	Description of the financial instrument, type of instrument	Common Shares
	Identification code	ISIN:  US38500T2006
b)	Nature of the transaction	Acquisition of Common Shares through the Company's Employee Share Savings Plan
c)	Price(s) and volume(s)
PDMR	Price(s)	Volume (s)
Gary GuidrySebastien MorinJim EvansPhillip Abraham	USD 10.69USD 10.69USD 10.69USD 10.69	386276124221
d)	Aggregated information\- Aggregated volume\- Price
Price(s)	Volume (s)
USD 10.69	1,007
e)	Date of the transaction	October 16, 2026
f)	Place of the transaction	Toronto Stock Exchange (TSX)

Contact Information:

Gary Guidry

President and Chief Executive Officer

Ryan Ellson

Executive Vice President and Chief Financial Officer

Phillip Abraham

Executive Vice President, Legal and Land and Corporate Secretary

+1 (403) 265-3221

[\[email protected\]](https://6ix-events-pro.s3.us-east-1.amazonaws.com/cdn-cgi/l/email-protection)

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