| Date | Time | Source | Announcement |
|---|---|---|---|
| 09 Feb 2012 | 11:33 AM | Treasury Stock | |
| 08 Feb 2012 | 10:32 AM | Treasury Stock | |
| 03 Feb 2012 | 12:22 PM | Treasury Stock | |
| 02 Feb 2012 | 02:56 PM | Total Voting Rights | |
| 24 Jan 2012 | 04:42 PM | Blocklisting Interim Review | |
| 03 Jan 2012 | 04:57 PM | Total Voting Rights | |
| 01 Dec 2011 | 04:40 PM | Total Voting Rights | |
| 22 Nov 2011 | 02:25 PM | Doc re. Half Year Report 2011/12 | |
| 22 Nov 2011 | 07:00 AM | Half Yearly Report | |
| 21 Nov 2011 | 11:08 AM | Director Declaration | |
| 14 Nov 2011 | 03:46 PM | Holding(s) in Company | |
| 14 Nov 2011 | 03:44 PM | Notice of Results | |
| 11 Nov 2011 | 07:00 AM | Directorate Change | |
| 02 Nov 2011 | 12:56 PM | Director Declaration | |
| 01 Nov 2011 | 11:12 AM | Total Voting Rights | |
| 17 Oct 2011 | 04:06 PM | Holding(s) in Company | |
| 11 Oct 2011 | 03:35 PM | Holding(s) in Company | |
| 06 Oct 2011 | 02:54 PM | Director/PDMR Shareholding | |
| 03 Oct 2011 | 10:41 AM | Total Voting Rights | |
| 15 Sep 2011 | 12:47 PM | Director/PDMR Shareholding | |
| 01 Sep 2011 | 12:47 PM | Total Voting Rights | |
| 26 Aug 2011 | 02:32 PM | Blocklisting Interim Review | |
| 16 Aug 2011 | 05:19 PM | Annual Information Update | |
| 12 Aug 2011 | 04:43 PM | Share transactions and Purchase of Own Shares | |
| 08 Aug 2011 | 12:48 PM | Treasury Stock | |
| 01 Aug 2011 | 02:40 PM | Total Voting Rights | |
| 29 Jul 2011 | 02:10 PM | Directorate Change | |
| 29 Jul 2011 | 01:20 PM | Result of AGM | |
| 28 Jul 2011 | 07:00 AM | AGM Statement | |
| 12 Jul 2011 | 10:13 AM | Director/PDMR Shareholding | |
| 11 Jul 2011 | 09:25 AM | Acquisition | |
| 01 Jul 2011 | 11:55 AM | Total Voting Rights | |
| 28 Jun 2011 | 04:06 PM | Director/PDMR Shareholding | |
| 27 Jun 2011 | 12:45 PM | Annual Financial Report | |
| 21 Jun 2011 | 07:00 AM | Final Results | |
| 14 Jun 2011 | 09:24 AM | Notice of Results | |
| 02 Jun 2011 | 11:51 AM | Total Voting Rights | |
| 10 May 2011 | 09:00 AM | Acquisition | |
| 05 May 2011 | 12:01 PM | Holding(s) in Company | |
| 04 May 2011 | 03:54 PM | Director/PDMR Shareholding | |
| 03 May 2011 | 10:46 AM | Total Voting Rights | |
| 04 Apr 2011 | 10:29 AM | Total Voting Rights | |
| 28 Mar 2011 | 04:26 PM | Treasury Stock | |
| 09 Mar 2011 | 07:00 AM | Acquisition | |
| 02 Mar 2011 | 02:33 PM | Director/PDMR Shareholding | |
| 02 Mar 2011 | 10:07 AM | Total Voting Rights | |
| 02 Mar 2011 | 08:47 AM | Acquisition | |
| 17 Feb 2011 | 07:00 AM | Interim Management Statement | |
| 15 Feb 2011 | 02:42 PM | Holding(s) in Company | |
| 04 Feb 2011 | 08:45 AM | Total Voting Rights |
Halma plc is a British global group of safety equipment companies that makes products for hazard detection and life protection based in Amersham, England. It is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index.
The company was established in 1894 in Sri Lanka as The Nahalma Tea Estate Company Limited. It switched to rubber production in 1937 and became The Nahalma Rubber Estate Company Limited. During the early 1950s the company's rubber estates were nationalised by the Sri Lankan government, and in 1956 the company became Halma Investments Limited, thereby severing its connections with both tea and rubber and becoming an investment and industrial holding company.
Halma was co-founded by David Barber and Mike Arthur in 1972.
Halma share price listed on the London Stock Exchange in January 1972.