Exercise of Options

Sintana Energy (OTCQX:SEUSF, TSX-V:SEI, AIM:SEI) reported the exercise of stock options over 1,000,000 common shares by co-secretary and treasurer Sean Austin at $0.165 per share, for proceeds of CAD$165,000.

Rhea-AI Summary

Sintana Energy (OTCQX:SEUSF, TSX-V:SEI, AIM:SEI) reported the exercise of stock options over 1,000,000 common shares by co-secretary and treasurer Sean Austin at $0.165 per share, for proceeds of CAD$165,000.

On Admission around 2 June 2026, issued share capital will be 555,582,493 voting shares.

Positive

• Insider option exercise provides CAD$165,000 cash to the company
• Sean Austin’s shareholding increases to 7,925,000 shares (1.43% of issued capital)

Negative

• Issuance of 1,000,000 new shares slightly dilutes existing shareholders
• Total share count rises to 555,582,493, increasing equity base

Argus May 28 session

-4.27% close to close Open Argus

Details

News Market Reaction – SEUSF

On May 28, the day this news came out, SEUSF closed 4.27% below the previous close.

Data tracked by StockTitan Argus for the May 28 session.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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TORONTO, ON / ACCESS Newswire / May 28, 2026 / Sintana Energy Inc. (TSX-V:SEI)(AIM:SEI)(OTCQX:SEUSF) ("Sintana" or the "Company") announces that it has received a notice of exercise in respect of stock options over 1,000,000 common shares of no-par value each in the Company ("Common Shares"). The options are being exercised by Mr. Sean Austin, the Company's co-secretary and treasurer. Following the exercise of the options, Mr. Austin will hold a total of 7,925,000 shares in the Company, or 1.43% of the Company's total issued shares. The options were exercisable at a price of $0.165 per share, and Mr. Austin has paid CAD$165,000 to the Company in respect of the exercise.

Total Voting Rights
Application has been made for admission to trading on the TSX Venture Exchange and AIM of a total of 1,000,000 new Common Shares of no-par value ("Admission"). Admission is expected on or about 2 June 2026. On Admission, the new Common Shares will rank pari passu with the Company's existing Common Shares. Following Admission, the Company's issued share capital will consist of 555,582,493 Common Shares, with each Common Share carrying the right to one vote. The Company does not hold any Common Shares in treasury.

This figure of 555,582,493 Common Shares may therefore be used by shareholders in the Company, as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change in their interest in, the share capital of the Company under the FCA's Disclosure Guidance and Transparency Rules.

For further information, please contact:

Sintana Energy Inc Robert Bose, Chief Executive Officer Eytan Uliel, President	Tel: +44 (0)7 747 845 987
Zeus - Nomad and Joint Broker Antonio Bossi / Darshan Patel / George Duxberry Simon Johnson (Broking)	Tel: +44 (0) 20 3829 5000
Cavendish Capital Markets Limited - Joint Broker Neil McDonald / Derrick Lee / Pearl Kellie	Tel: +44 (0) 20 3493 8000
Jonathan Paterson - Investor Relations jonathan.paterson@harbor-access.com	Tel: +1 475 477 9401
CAMARCO - Financial PR Billy Clegg / Georgia Edmonds / Sam Morris	Tel: +44 (0) 20 3757 4980

About Sintana Energy

Sintana Energy is an Atlantic Margin-focused oil and gas company, holding interests in a diverse portfolio of high-impact assets that spans the Southern Atlantic conjugate margin. The Company's current portfolio is strategically positioned in the emerging frontier geographies of Namibia, Uruguay and Angola, with additional legacy assets in Colombia and The Bahamas. Led by an experienced team, Sintana Energy is partnered with major industry players, and benefits from significant carry support, on key licenses across multiple jurisdictions. Sintana Energy is listed on the TSX-V in Canada under the symbol "SEI", in the United Kingdom on the LSE-AIM under the symbol "SEI" and in the U.S. on the OTCQX under the symbol "SEUSF".

For further information, please visit sintanaenergy.com

1	Details of the person discharging managerial responsibilities / person closely associated
a)	Name	Sean Austin
2	Reason for the notification
a)	Position/status	PDMR
b)	Initial notification /Amendment	Initial Notification
3	Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor
a)	Name	Sintana Energy inc.
b)	LEI	984500ETD72B0D4E4645
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 of no par value
	Identification code	CA82938H1073
b)	Nature of the transaction	Exercise of options
c)	Price(s) and volume(s)		Prices(s) Volume $0.165 1,000,000
d)	- Aggregated volume Price		n/a
e)	Date of the transaction	18 May 2026
f)	Place of the transaction	TSX-V

NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES PROVIDER (AS THAT TERM IS DEFINED IN THE POLICIES OF THE TSX VENTURE EXCHANGE) ACCEPTS RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS RELEASE.

SOURCE: Sintana Energy Inc.

View the original press release on ACCESS Newswire

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stock options were exercised at Sintana Energy (OTCQX:SEUSF) on May 28, 2026?

Sintana Energy reported that co-secretary and treasurer Sean Austin exercised options over 1,000,000 common shares at $0.165 per share. According to Sintana Energy, this option exercise generated CAD$165,000 in proceeds and increases his direct shareholding in the company.

How many Sintana Energy (SEUSF) shares does Sean Austin own after the option exercise?

After exercising 1,000,000 options, Sean Austin holds 7,925,000 Sintana Energy common shares, representing 1.43% of issued shares. According to Sintana Energy, this updated holding reflects his increased equity stake following the May 28, 2026 transaction.

What is Sintana Energy’s total issued share capital after the new 1,000,000 shares?

Following Admission of the 1,000,000 new shares, Sintana Energy’s issued share capital will be 555,582,493 common shares. According to Sintana Energy, each common share carries one vote, and the company holds no shares in treasury.

When will the new Sintana Energy (SEUSF) shares from the option exercise start trading?

Admission of the 1,000,000 new Sintana Energy common shares to TSX Venture Exchange and AIM is expected on or about 2 June 2026. According to Sintana Energy, these shares will rank pari passu with existing common shares upon Admission.

How can Sintana Energy (SEUSF) shareholders use the new share count for FCA disclosure thresholds?

Shareholders may use the updated figure of 555,582,493 common shares as the denominator for FCA Disclosure Guidance and Transparency Rules. According to Sintana Energy, this number supports calculations of interests and changes in interests in the company’s share capital.

Does the Sintana Energy option exercise affect voting rights for existing SEUSF shareholders?

The option exercise adds 1,000,000 voting shares, slightly diluting existing holders’ percentage interests. According to Sintana Energy, each of the 555,582,493 issued common shares carries one vote, and no shares are held in treasury.