Business
Buy-back of shares in Castellum 20–28 May 2026
Buy-back of shares in Castellum 20–28 May
About this update from Castellum Ab
Castellum AB (LEI code: 549300GU5OHTR1T5IY68) (“Castellum”) has during the period from 20 May to 28 May 2026 repurchased, in total, 2,634,000 own shares (ISIN code: SE0000379190) under the share buy-back program initiated by the Board of Directors. The share buy-backs form part of the share buy-back program which Castellum announced on 29 April 2026 . The share buy-back program is being carried out in accordance with the EU Market Abuse Regulation (EU) No 596/2014 (“MAR”) and the Commission Delegated Regulation (EU) 2016/1052 (the “Safe Harbour Regulation”). The purpose of the share buy-back program is to adjust the company’s capital structure and thereby efficiently contribute to an increase in shareholder value. Shares in Castellum have been repurchased as follows: Date Aggregated volume (number of shares) Weighted average share price (SEK) Total transaction value (SEK) 20/05/2026 388,000 125.4198 48,662,882 21/05/2026 390,000 126.3346 49,270,494 22/05/2026 382,000 125.9463 48,111,487 25/05/2026 381,000 128.1588 48,828,503 26/05/2026 372,000 126.4242 47,029,802 27/05/2026 364,000 126.9654 46,215,406 28/05/2026 357,000 125.6566 44,859,406 Total 2,634,000 126.4153 332,977,980 All acquisitions have been carried out on Nasdaq Stockholm by ABG Sundal Collier on behalf of Castellum. Following the above acquisitions, Castellum’s holding of own shares as of 28 May 2026 amounts to 18,094,903 shares. The total number of shares in Castellum is 477,526,355. A full breakdown of the transactions pursuant to Article 5.3 of MAR and Article 2.3 of the Safe Harbour Regulation is attached to this press release. For more information, please contact: Christoffer Strömbäck, CFO, Castellum AB , +46 70 249 72 55 About Castellum Castellum is a Swedish property company that owns, manages, and develops commercial properties in growth cities. As of 31 March 2026 , the property value amounted to approximately SEK 138 Bn . The company is listed on Nasdaq Stockholm Large Cap and is classified as green under the Green Equity Designation. Castellum is the only Swedish property company included in the Dow Jones Sustainability Indices (DJSI). Beyond expectations. www.castellum.com Attachments Appendix - buy-back of shares 20-28 May 2026 Buy-back of shares in Castellum 20–28 May 2026 © Modular Finance, source Nordic Press Releases