Bilfinger SE: Share Buyback

Disclosure according to Art. 5 para. 1(b), para 3 of Regulation (EU) No. 596/2014 in connection with Art. 2 para. 2 and 3 of Delegated Regulation (EU) 2016/1052 Share buyback – 40. Interim Reporting In the time period from October 20, 2025 until and including October 24, 2025, a number of 10,976 shares were bought back within the framework of the share buyback of Bilfinger SE. The beginning of the share buyback on January 21, 2025 was disclosed on January 20, 2025 pursuant to Art. 5 para. 1 of Regulation (EU) No. 596/2014, Art. 2 para. 1 of Delegated Regulation (EU) 2016/1052.

Day of purchase	Aggregated volume in shares	Weighted average price [EUR]
20.10.2025	2,172	97.1287
21.10.2025	2,177	96.9210
22.10.2025	2,202	95.7955
23.10.2025	2,218	95.1075
24.10.2025	2,207	95.5207

The transactions are published in a detailed form on the website of Bilfinger SE (http://www.bilfinger.com). The total volume of shares which have been bought back within the framework of the share buyback in the time period of January 21, 2025, until and including October 24, 2025, amounts to 569,038 shares. The purchase of the shares of Bilfinger SE is carried out exclusively via the stock exchange by a bank commissioned by Bilfinger SE.