Borr Drilling Limited – Notification of PDMR Transactions

Hamilton, Bermuda, August 14, 2026 – Borr Drilling Limited (NYSE and OSE: BORR) (the "Company") has received notification of transactions related to the following persons discharging managerial responsibilities (“PDMRs”).

Drew Holdings Ltd., a close associate of Mr. Tor Olav Trøim, a director of the Company and a PDMR in the Company, has purchased 1,500,000 shares at an average price of USD 4.0245 per share.

Mr. Jeffrey Currie, a director of the Company and a PDMR in the Company, has purchased 125,000 shares at an average price of 4.0131 per share.

For further information, please see 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.

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