Cohort: Director/PDMR Shareholding (Replacement)

One Waterside Drive Arlington Business Park Reading Berks RG7 4SW 15 September 2026 COHORT PLC ("Cohort" or “the Company”) AMENDED - Director Shareholdings Vesting of Long-Term Incentive Plan awards The following amendment has been made to the ‘Director Shareholdings, Vesting of Long-Term Incentive Plan awards’ announcement released on 11 September 2026 at 12:47BST under RNS 4721U. Corrections made to the PDMR tables relating to Simon Walther: The number of shares vested amended to 39,635 The number of shares sold amended to 18,679 All other details remain unchanged. The full amended text and tables are shown below. Director Shareholdings Cohort plc wishes to notify the following changes in the interests of directors of the Company in ordinary shares of 10 pence (“Ordinary Shares”) in relation to the vesting of the Executive Long Term Incentive Plan 2023 (“LTIP”) share awards. Vesting of Share Awards On 29 August 2026, Ordinary Shares that had vested in accordance with the rules of the LTIP, and the performance conditions set, were transferred to the executive directors of the Company (the “Vested Shares”) at nil cost. Sufficient of the Vested Shares were sold on 1 September 2026 at a price of £11.6176 per share to cover the tax and National Insurance Contribution (“NIC”) liabilities due, resulting in a number of Ordinary Shares retained (“Retained Shares”). The Retained Shares are additionally subject to a two-year post-vesting holding period and will be held in a custodian nominee account. The following table sets out the details of the Vested Shares and Retained Shares: Cash sum settled pursuant to the Director Cash sum settled pursuant to LTIP Total number of Vested Shares Number of shares sold to cover tax and NIC liabilities Total number of Retained Shares AS Thomis £125,802.00 50,717 23,898 26,819 SR Walther £98,313.00 39,635 18,679 20,956 The vesting of the LTIP awards was dependent on performance against organic growth and total growth targets, equally weighted, measured over a three-year period: Vesting Conditions: Up to 50% based on organic CAGR over 3 years between: 3% to 8% Up to 50% based on total CAGR over 3 years between: 3% to 13% Vesting conditions attained: 50% based on organic CAGR over 3 years 11.84% 50% based on total CAGR over 3 years 18.78% Further details regarding the LTIP and associated performance conditions can be found in the Company's Annual Report and Accounts. Director Shareholdings Following completion of the transactions detailed above, the interests of Mr Thomis and Mr Walther and their connected persons in the Ordinary Shares are as follows: Director Ordinary Shares % of the total issued share capital AS Thomis 215,758 0.46% SR Walther 176,415 0.37% NOTIFICATION OF TRANSACTIONS OF PERSONS DISCHARGING MANAGERIAL RESPONSIBILITIES 1 Details of the person discharging managerial responsibilities / person closely associated a) Name Andrew Thomis 2 Reason for the notification a) Position/status Chief Executive b) Initial notification/amendment Initial notification 3 Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor a) Full name of the entity Cohort plc b) Legal Entity Identifier Code 213800WE61C73LZZNW11 4 Details of the transaction(s) a) Description of the financial instrument, type of instrument Ordinary shares in Cohort plc with a nominal value of 10 pence each b) Identification Code GB00B0YD2B94 c) Nature of the transaction Vesting of shares under the Cohort plc LTIP and transfer to a custodian nominee account. d) Currency GBP – British Pound e) Price(s) and Volume(s) 50,717 Ordinary Shares at £0.00 f) Aggregated Information - Price - Volume - Total N/A g) Date of transaction 29 August 2026 h) Place of transaction Outside of a Main Market NOTIFICATION OF TRANSACTIONS OF PERSONS DISCHARGING MANAGERIAL RESPONSIBILITIES 1 Details of the person discharging managerial responsibilities / person closely associated a) Name Andrew Thomis 2 Reason for the notification a) Position/status Chief Executive b) Initial notification/amendment Initial notification 3 Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor a) Full name of the entity Cohort plc b) Legal Entity Identifier Code 213800WE61C73LZZNW11 4 Details of the transaction(s) a) Description of the financial instrument, type of instrument Ordinary shares in Cohort plc with a nominal value of 10 pence each b) Identification Code GB00B0YD2B94 c) Nature of the transaction Sale of vested shares to cover tax and NIC liabilities d) Currency GBP – British Pound e) Price(s) and Volume(s) 23,898 Ordinary Shares at £11.6176 f) Aggregated Information - Price - Volume - Total N/A g) Date of transaction 1 September 2026 h) Place of transaction London Stock Exchange - AIM NOTIFICATION OF TRANSACTIONS OF PERSONS DISCHARGING MANAGERIAL RESPONSIBILITIES 1 Details of the person discharging managerial responsibilities / person closely associated a) Name Simon Walther 2 Reason for the notification a) Position/status Finance Director b) Initial notification/amendment Initial notification 3 Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor a) Full name of the entity Cohort plc b) Legal Entity Identifier Code 213800WE61C73LZZNW11 4 Details of the transaction(s) a) Description of the financial instrument, type of instrument Ordinary shares in Cohort plc with a nominal value of 10 pence each b) Identification Code GB00B0YD2B94 c) Nature of the transaction Vesting of shares under the Cohort plc LTIP and transfer to a custodian nominee account d) Currency GBP – British Pound e) Price(s) and Volume(s) 39,635 Ordinary Shares at £0.00 f) Aggregated Information - Price - Volume - Total N/A g) Date of transaction 29 August 2026 h) Place of transaction Outside of a Main Market NOTIFICATION OF TRANSACTIONS OF PERSONS DISCHARGING MANAGERIAL RESPONSIBILITIES 1 Details of the person discharging managerial responsibilities / person closely associated a) Name Simon Walther 2 Reason for the notification a) Position/status Finance Director b) Initial notification/amendment Initial notification 3 Details of the issuer, emission allowance market participant, auction platform, auctioneer or auction monitor a) Full name of the entity Cohort plc b) Legal Entity Identifier Code 213800WE61C73LZZNW11 4 Details of the transaction(s) a) Description of the financial instrument, type of instrument Ordinary shares in Cohort plc with a nominal value of 10 pence each b) Identification Code GB00B0YD2B94 c) Nature of the transaction Sale of vested shares to cover tax and NIC liabilities d) Currency GBP – British Pound e) Price(s) and Volume(s) 18,679 Ordinary Shares at £11.6176 f) Aggregated Information - Price - Volume - Total N/A g) Date of transaction 1 September 2026 h) Place of transaction London Stock Exchange - AIM ENDS For further information contact: Cohort plc 0118 9090390 Andrew Thomis, Chief Executive Simon Walther, Finance Director Raquel McGrath, General Counsel and Company Secretary Kellie Young, Group Head of Investor Communications Investec Bank plc (NOMAD and Broker) 0207 597 5970 Carlton Nelson, Christopher Baird MHP 0203 128 8276 Reg Hoare, Ollie Hoare, Hugo Harris cohort@mhpgroup.com NOTES TO EDITORS Cohort plc (www.cohortplc.com) is the parent company of seven innovative, agile and responsive businesses based in the UK, Australia, Germany, Italy, Canada and Portugal, providing a wide range of services and products for domestic and export customers in defence and related markets. Cohort (AIM: CHRT) was admitted to London's Alternative Investment Market in March 2006. It has headquarters in Reading, Berkshire and employs in total over 1,700 core staff there and at its other operating company sites. The Group is split into two divisions: Communications and Intelligence, and Sensors and Effectors: Communications and Intelligence ("C&I") · EID designs and manufactures advanced communications systems for naval and military customers. Cohort acquired a majority stake in June 2016. www.eid.pt · EM Solutions designs, assembles, tests, and supports advanced mobile satellite communications terminals for naval and other customers. Acquired by Cohort in January 2025. www.emsolutions.com.au · MASS is a specialist data technology company serving the defence and security markets, focused on electronic warfare, digital services, and training support. Acquired by Cohort in August 2006. www.mass.co.uk · MCL designs, sources, and supports advanced electronic and surveillance technology for UK end users including the MOD and other government agencies. MCL has been part of the Group since July 2014. www.marlboroughcomms.com Sensors and Effectors ("S&E") · Chess Dynamics offers surveillance, tracking and fire-control systems to the defence and security markets. Chess has been part of the Group since December 2018. www.chess-dynamics.com · ELAC SONAR supplies advanced sonar systems and underwater communications to global customers in the naval marketplace. Acquired by Cohort in December 2020. www.elac-sonar.de · SEA delivers and supports technology-based products for the defence market alongside specialist research and training services. Acquired by Cohort in October 2007. www.sea.co.uk

Cohort: Director/PDMR Shareholding (Replacement)

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