Director/PDMR Shareholding

HALMA p.l.c.

DIRECTOR'S AND PDMR'S SHARE TRANSACTIONS

Halma has received notifications in respect of Adam Meyers, a Director of Halma and Charles Dubois, a PDMR, relating to their beneficial interests in the ordinary shares of the Company.

ADAM MEYERS

Adam Meyers has a beneficial interest held through the Halma Holdings Inc. Profit Sharing Savings Retirement Plan (the 'Plan'). This is a unitised, US Dollar denominated 401(k) plan and dividends paid on the Plan's assets are re-invested for the benefit of members. As a result of the interim dividend paid by the Company on 8 February 2012 at the rate of 3.79p per share, the interest held by him increases as follows:

Shares acquired as a result of the Plan dividend re-investment

Increased holding through the Plan

52

 5,184

In addition to the above, Adam Meyers has a direct beneficial interest in Halma ordinary shares. After the above transaction, the total beneficial holding of Adam Meyers in the ordinary shares of the Company increases to 203,064 shares (0.0539% of the issued ordinary share capital excluding treasury shares).

CHARLES DUBOIS

Charles Dubois participates in the Halma Dividend Re-investment Plan ('DRIP'). As a result of the interim dividend paid on 8 February 2012, the beneficial holding of Charles Dubois increases by 542 shares to 54,443 shares (0.0144% of the issued ordinary share capital excluding treasury shares). The DRIP shares were acquired at 372.9852p per share.

For further information, please contact:

Carol Chesney +44 (0)1494 721111Company Secretary, Halma p.l.c.

A copy of this announcement, together with other information about Halma, may be viewed on its website: www.halma.com