Borr Drilling Limited – Notification of PDMR Transactions

Hamilton, Bermuda, June 10, 2026 – Borr Drilling Limited (NYSE and OSE: BORR) (the "Company") has received trade notifications related to transactions by:

1) Drew Holding Ltd., a close associate of Mr. Tor Olav Trøim, Director of the Company and a person discharging managerial responsibilities (“PDMR”) in the Company; and 2) Granular Capital Ltd., a close associate of Mr. Thiago Mordehachvili, Director of the Company and a PDMR in the Company.

For further information, please see the transaction forms enclosed with this announcement.

This information is subject to the disclosure requirements pursuant to MAR Article 19 and Section 5-12 of the Norwegian Securities Trading Act.

Questions should be directed to: Magnus Vaaler, CFO, +44 1224 289208