Castellum

AGM Information • Dec 22, 2025

Castellum announces the results of the consent solicitations for all series of outstanding EMTN-bonds

Castellum AB hereby announces the results of its consent solicitation in respect of certain outstanding notes. The required quorum was achieved and the relevant extraordinary resolutions were passed for the 2026 NOK Notes, the 2028 NOK Notes, the 2029 NOK Notes and the 2030 € Notes, and the proposed amendments for these series were implemented with effect from 22 December 2025. For the 2026 € Notes and the 2029 € Notes, although the required quorum was achieved, the extraordinary resolutions were not passed and the proposed amendments will therefore not be implemented for these series.

Castellum AB announced separate invitations (each such invitation, a "Consent Solicitation") to holders of each Series of the outstanding Notes to consent to the modification of the terms and conditions (in respect of each Series, the "Conditions") of the relevant Series for the purpose of amending the 'cessation of business' Event of Default in Condition 10.1(f) of, and including a new divestment-linked interest rate step up provision in, the relevant Conditions, all as proposed by Castellum AB for approval by a separate Extraordinary Resolution of the holders of each Series. A separate meeting (each a "Meeting" and together, the "Meetings") of the Noteholders of each Series was held earlier today, 22 December 2025, in connection with the Consent Solicitations, and Castellum AB now announces the results of the Meetings.

This announcement does not contain the full terms and conditions of the Consent Solicitations or the full text of the proposed amendments to the Conditions of each Series (the "Proposed Amendments"), which are contained in the Consent Solicitation Memorandum dated 27 November 2025 (the "Consent Solicitation Memorandum") prepared by Castellum AB.

Unless otherwise indicated, capitalised terms used but not otherwise defined in this announcement have the meanings given in the Consent Solicitation Memorandum.

Details of the Notes and Consent Solicitations

Notes	ISIN / Common Code	Issuer	Maturity date	Outstanding nominal amount
2026 € Notes	XS2049767598 / 204976759	Castellum AB	4 September 2026	€214,310,000
2026 NOK Notes	XS2386149459 / 238614945	Castellum AB	15 September 2026*	NOK 600,000,000
2028 NOK Notes	XS2386175454 / 238617545	Castellum AB	15 September 2028	NOK 1,000,000,000
2029 NOK Notes	XS1991424299 / 199142429	Castellum AB	15 May 2029	NOK 850,000,000
2029 € Notes	XS2387052744 / 238705274	Castellum Helsinki Finance Holding Abp	17 September 2029	€650,000,000
2030 € Notes	XS2895710783 / 289571078	Castellum AB	10 December 2030	€500,000,000
	* or, if 15 September 2026 is not a business day, the interest payment date falling nearest to 15 September 2026.

Results of the Meetings, and Implementation Date in respect of the 2026 NOK Notes, the 2028 NOK Notes, the 2029 NOK Notes and the 2030 € Notes

NOTICE IS HEREBY GIVEN to:

• (i) the holders of the 2026 NOK Notes, the 2028 NOK Notes, the 2029 NOK Notes and the 2030 € Notes that, in respect of each such Series, the necessary quorum was achieved at the relevant Meeting, the relevant Extraordinary Resolution was passed and the Resolution Inter-conditionality has been waived by Castellum AB, and that the Consent Conditions have therefore been satisfied in respect of each such Series;
• (ii) the holders of the 2026 NOK Notes, the 2028 NOK Notes, the 2029 NOK Notes and the 2030 € Notes that (A) the Supplemental Agency Agreement in respect of each such Series has been executed by Castellum AB and the relevant agents on 22 December 2025, and (B) the Proposed Amendments have been implemented in respect of each such Series with effect on and from 22 December 2025; and
• (iii) the holders of the 2026 € Notes and the 2029 € Notes that, in respect of each such Series, the necessary quorum was achieved at the relevant Meeting but the relevant Extraordinary Resolution was not passed, and the Proposed Amendments will therefore not be implemented in respect of such Series.

Early Consent Fee Payment Date in respect of the 2026 NOK Notes, the 2028 NOK Notes, the 2029 NOK Notes and the 2030 € Notes

Castellum AB hereby confirms that, in respect of the 2026 NOK Notes, the 2028 NOK Notes, the 2029 NOK Notes and the 2030 € Notes, the Early Consent Fee Payment Date (on which the Early Consent Fee of 0.25 per cent. of the nominal amount of the relevant Notes will be paid to eligible holders of the 2026 NOK Notes, the 2028 NOK Notes, the 2029 NOK Notes and the 2030 € Notes in the manner described in the Consent Solicitation Memorandum) will be 29 December 2025.

Further Information

Further details on the Consent Solicitations can be obtained from:

SOLICITATION AGENTS

J.P. Morgan SE

Taunustor 1 (TaunusTurm) 60310 Frankfurt am Main Germany Attention: Liability Management Telephone: +44 20 7134 2468

Email: liability\_management\_EMEA@jpmorgan.com

Nordea Bank Abp

Satamaradankatu 5 FI-00020 Nordea Finland

Attention: Nordea Liability Management Telephone: +45 61 61 29 96

Email: NordeaLiabilityManagement@nordea.com

TABULATION AGENT

Kroll Issuer Services Limited

The News Building 3 London Bridge Street London SE1 9SG United Kingdom Attention: Arlind Bytyqi

Telephone: +44 20 7704 0880 Email: castellum@is.kroll.com

Website: https://deals.is.kroll.com/castellum

DISCLAIMER: This announcement must be read in conjunction with the Consent Solicitation Memorandum. If any Noteholder is unsure of the impact of the implementation of the relevant Extraordinary Resolution, it is recommended to seek its own financial and legal advice, including in respect of any tax consequences, immediately from its broker, bank manager, solicitor, accountant or other independent financial, tax or legal adviser.

The distribution of this announcement and the Consent Solicitation Memorandum in certain jurisdictions may be restricted by law, and persons into whose possession this announcement or the Consent Solicitation Memorandum comes are requested to inform themselves about, and to observe, any such restrictions.

For more information, please contact:

Christoffer Strömbäck, Acting CFO, Castellum Aktiebolag, +46 70 249 72 55 Fredrik Elliot, Head of Treasury, Castellum Aktiebolag, +46 8 503 052 74

About Castellum

Castellum is a Swedish property company that owns, manages, and develops commercial properties in growth cities. As of 30 September 2025, the property value amounted to approximately SEK 137 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

This information is information that Castellum is obliged to make public pursuant to the EU Market Abuse Regulation. The information was submitted for publication, through the agency of the contact persons set out above, at 2025-12-22 13:00 CET.

Attachments

Castellum announces the results of the consent solicitations for all series of outstanding EMTN-bonds