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Holding(s) in Company

In brief · summary, not quotable

Optidob BV has notified Gulf Keystone Petroleum Ltd of a major holding, crossing a threshold on March 13, 2026, and now directly holds 5.03% of the voting rights, with Bloembeek CV holding an additional 0.14%, resulting in a combined total of 5.17% of voting rights representing 11,240,537 shares. This notification is due to an acquisition or disposal of voting rights.

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16-March-2026 / 14:45 GMT/BST

TR-1: Standard form for notification of major holdings

1a. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached ii :Gulf Keystone Petroleum Ltd
  • Please indicate if the issuer is a non-UK issuer (please mark with an “X” if appropriate)
Non-UK issuerx
  • Reason for the notification (please mark the appropriate box or boxes with an “X”)
An acquisition or disposal of voting rightsx

An acquisition or disposal of financial instruments

An event changing the breakdown of voting rights

Other (please specify) iii :

Details of person subject to the notification obligation iv

NameOptidob BV
City and country of registered office (if applicable)Amsterdam, the Netherlands

Full name of shareholder(s) (if different from 3.) v

Name

Optidob BVDirect holder of 5.03 %
Bloembeek CVDirect holder of 0.14%
City and country of registered office (if applicable)Amsterdam, the Netherlands
5. Date on which the threshold was crossed or reached vi :13-03-2026
6. Date on which issuer notified (DD/MM/YYYY):16-03-2026
  • Total positions of person(s) subject to the notification obligation
Resulting situation on the date on which threshold was crossed or reached5.17%5.17%11,240,537
Position of previous notification (if applicable)
A: Voting rights attached to shares
Class/type of shares ISIN code (if possible)Number of voting rights ix% of voting rights
Direct (DTR5.1)Indirect (DTR5.2.1)Direct (DTR5.1)Indirect (DTR5.2.1)
BMG4209G207711,240,5375.17%
SUBTOTAL 8. A11,240,5375.17%

B 1: Financial Instruments according to DTR5.3.1R (1) (a)

SUBTOTAL 8. B 1

B 2: Financial Instruments with similar economic effect according to DTR5.3.1R (1) (b)

SUBTOTAL 8.B.2

Stichting Beheer Beukenrode

Bloembeek CV0.14%0.14%
Optidob BV5.03%5.03%

In case of proxy voting, please identify:

Name of the proxy holder

The number and % of voting rights held

The date until which the voting rights will be held

Additional information xvi

Place of completionAmsterdam
Date of completion16-03-2026

Cleaned text: letterheads, contacts and legal notices removed. View the original announcement ↗ · Company filings. Not investment advice.

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