2 March 2026

TRITAX BIG BOX REIT PLC

(the "Company")

 PURCHASE OF ORDINARY SHARES BY PDMRS

The Board of the Company announces that in accordance with the terms of the Investment Management Agreement between the Company and Tritax Management LLP (the "Manager") dated 4 May 2022, pursuant to which 25 per cent. of the management fee (net of any applicable tax) is applied to the purchase of ordinary shares in the Company ("Ordinary Shares"), the Manager has acquired in the market a total of 1,609,359 Ordinary Shares on behalf of certain partners and employees of the Manager, including the persons discharging managerial responsibilities ("PDMRs") and abrdn Holdings Limited, in its capacity as member of the Manager. The Ordinary Shares were acquired on 27 February 2026 at £1.7093 per share.

1. 96,364 Ordinary Shares have been acquired by Colin Godfrey; 5,353 Ordinary Shares have been acquired by Harriet Godfrey; 5,353 Ordinary Shares have been acquired by Adam Godfrey (PCAs of Colin Godfrey). The net change in the total shareholding for Colin Godfrey compared to the RNS announcement made by the Company on 7 August 2025 also reflects a change to his PCAs (and is not due to trading activity).

2. 71,393 Ordinary Shares have been acquired by Oscar Bell Franklin (PCA of Henry Franklin).

3. 20,038 Ordinary Shares have been acquired by Martine Whitehead (PCA of Frankie Whitehead).

4. Includes staff and other partners of the Manager. The shares were purchased and will be allocated to staff of the Manager in accordance with the IMA.

**In respect of the staff of Tritax Management LLP and abrdn Holdings Limited these figures only include Ordinary Shares issued or purchased pursuant to the management fee arrangements with the respective companies and not, in the case of abrdn Holdings Limited, holdings of Aberdeen Group plc and its affiliates.

FOR FURTHER INFORMATION, PLEASE CONTACT:

The Company's LEI is: 213800L6X88MIYPVR714

Notes:

Tritax Big Box REIT plc (ticker: BBOX) is the largest listed investor in high-quality logistics warehouse assets and controls the largest logistics-focused land platform in the UK. Tritax Big Box targets attractive and sustainable returns for shareholders by investing in and actively managing existing built investments and land suitable for logistics development. The Company focuses on well-located, modern logistics assets, typically let to institutional-grade clients on long-term leases with upward-only rent reviews and geographic and client diversification throughout the UK. Additionally, having adopted a "power first" approach, the Company has recently secured its first data centre development opportunities (amounting to over 250MW), and has a pipeline of c.1-gigawatt of further opportunities, offering the potential to deliver exceptional returns on an accelerated basis.
 
The Company is a real estate investment trust to which Part 12 of the UK Corporation Tax Act 2010 applies, is listed on the Official List of the UK Financial Conduct Authority and is a constituent of the FTSE 100, FTSE EPRA/NAREIT and MSCI indices. 
 
Further information on Tritax Big Box REIT is available at tritaxbigbox.co.uk 

Notification of a Transaction pursuant to Article 19(1) of Regulation (EU) No. 596/2014