Borr Drilling Limited – Notification of PDMR Transactions

Hamilton, Bermuda, September 3, 2026 – Borr Drilling Limited (NYSE and OSE: BORR) (the "Company") has received notification of transactions by certain persons discharging managerial responsibilities in the Company in connection with the Company’s long-term incentive program. For further information, please see the transaction form enclosed with this announcement.

About Borr Drilling Limited Borr Drilling Limited is an international drilling contractor incorporated in Bermuda in 2016 and listed on the New York Stock Exchange since July 31, 2019 and on Euronext Oslo Børs since May 21, 2026 under the ticker "BORR." The Company owns and operates jack-up rigs of modern and high specification designs and provides services focused on the shallow-water segment to the offshore oil and gas industry worldwide. Please visit our website at www.borrdrilling.com.

This information is subject to the disclosure requirements in Article 19 of the Regulation (EU) 596/2014 (the Market Abuse Regulation) and Section 5-12 of the Norwegian Securities Trading Act.

Questions should be directed to: Magnus Vaaler, CFO, +44 1224 289208, ir@borrdrilling.com