6 March 2023

TRITAX BIG BOX REIT PLC

(the "Company")

purchase of ordinary shares by pdmrs

The Board of the Company announces that in accordance with:

a)   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 to be applied to the purchase  of ordinary shares of the Company ("Ordinary Shares"), the Manager has acquired in the market a total of 1,772,824 Ordinary Shares on behalf of certain partners and employees of the Manager, including the persons discharging managerial responsibilities ("PDMRs") referred to below, and abrdn Holdings Limited ("abrdn"); and

b)   the terms of the Bonus Agreement between the Company and Tritax Symmetry Management Limited ("Tritax Symmetry") dated 27 January 2021, pursuant to which 20 per cent. of the deal bonus fee (net of any applicable taxes) is applied to the acquisition of Ordinary Shares, the Manager has acquired in the market a total of 67,774 Ordinary Shares on behalf of certain staff of Tritax Symmetry,

in both cases the Ordinary Shares were acquired on 2 March 2023 at £1.4775 per share.

^{1 59,352 shares have been acquired by Amelia Dunlop, 59,351 shares have been acquired by Tom Dunlop (PCAs of James Dunlop)}

^{2 79,150 shares have been acquired by Daisy Franklin (PCA of Henry Franklin)}

^{3 22,214 shares have been acquired by Lianne Hobart (PCA of Bjorn Hobart)}

^{4 22,214 shares have been acquired by Martine Whitehead (PCA of Frankie Whitehead).}

^{5 Includes staff and other partners of the Manager.}

^{**In respect of the staff of Tritax Management LLP & Tritax Symmetry Management and abrdn Holdings Limited these figures only include Ordinary Shares issued or purchased pursuant to the management fee arrangements with the respective companies.}

FOR FURTHER INFORMATION, PLEASE CONTACT:

The Company's LEI is: 213800L6X88MIYPVR714

NOTES:

Tritax Big Box REIT plc (ticker: BBOX) is the only listed vehicle dedicated to investing in very large logistics warehouse assets (Big Boxes) in the UK and is committed to delivering attractive and sustainable returns for Shareholders. Investing in and actively managing existing built investments, land suitable for Big Box development and developments predominantly delivered through pre-let forward funded basis, the Company focuses on large, well-located, modern Big Box logistics assets, let to institutional-grade tenants on long-term leases (typically at least 12 years in length) with upward-only rent reviews and geographic and tenant diversification throughout the UK. The Company seeks to exploit the significant opportunity in this sub-sector of the UK logistics market owing to strong tenant demand and limited supply of Big Boxes.

The Company is a real estate investment trust to which Part 12 of the UK Corporation Tax Act 2010 applies (REIT), is listed on the premium segment of the Official List of the UK Financial Conduct Authority and is a constituent of the FTSE 250, FTSE EPRA/NAREIT and MSCI indices.

Further information on Tritax Big Box REIT is available at www.tritaxbigbox.co.uk

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