Borr Drilling Limited – Notification of PDMR Transactions

Hamilton, Bermuda, October 2, 2026 - Borr Drilling Limited (NYSE and OSE: BORR) (the "Company") has received notification of transactions related to certain persons discharging managerial responsibilities (“PDMRs”) in the Company, in connection with the Company’s long-term incentive program. For further information, please refer to the transaction forms 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 pursuant to MAR Article 19 and Section 5-12 of the Norwegian Securities Trading Act.

Contact Benjamin Wiseman Senior Manager, Corporate Finance & Investor Relations +44 122 4289 230 ir@borrdrilling.com