Halma Regulatory News (HLMA)

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 John Campbell and Charles Dubois, both PDMRs, relating to their beneficial interests in the ordinary shares of the Company.

Adam Meyers and John Campbell have beneficial interests 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 9 February 2011 at the rate of 3.54p per share, the interests held by each of them increase as follows:

ADAM MEYERS

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

Increased holding through the Plan

52

 5,064

In addition to the above, Adam Meyers also 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 182,944 shares (0.0486% of the issued ordinary share capital excluding treasury shares).

JOHN CAMPBELL

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

Increased holding through the Plan

131

12,754

In addition to the above, John Campbell also has a direct beneficial interest in Halma ordinary shares. After the above transaction, the beneficial holding of John Campbell, including family interests, in the ordinary shares of the Company increases to 154,996 shares (0.0411% 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 9 February 2011, the beneficial holding of Charles Dubois increases by 239 shares to 23,336 shares (0.0062% of the issued ordinary share capital excluding treasury shares). The DRIP shares were acquired at 341p 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