IMPAX ASSET MANAGEMENT GROUP PLC

Transaction in Own Shares • Sep 29, 2025

National Storage Mechanism | Additional information

RNS Number : 0830B

Impax Asset Management Group plc

29 September 2025

29 September 2025

IMPAX ASSET MANAGEMENT GROUP PLC

("Impax" or the "Company")

Transaction in Own Shares

IMPAX ASSET MANAGEMENT GROUP PLC ("Impax", or the "Company") announces that on 26 September 2025 it purchased the following number of its Ordinary Shares of 1p each through Peel Hunt LLP as part of the buyback programme announced on 22 May 2025.

Date of Purchase	26 September 2025
Aggregate number of Ordinary 1p shares purchased	50,000
Lowest price paid per share (GBp)	184.80
Highest price paid per share (GBp)	187.00
Volume weighted average price paid per share (GBp)	186.60

The Company intends to cancel the purchased shares.

Following settlement of the above purchases, Impax has purchased a total of 1,794,423 shares since the commencement of the buyback programme and will have 130,802,131 ordinary shares of 1p pence each in issue. There are 0 shares held in treasury. The total voting rights in the Company are therefore 130,802,131 and this can be used by shareholders as the denominator for the calculations by which they can determine if they are required to notify their interest in, or change to their interest in, the Company under the Financial Conduct Authority's Disclosure Guidance and Transparency Rules.

Trading Venue	Volume-weighted average price paid per share (Gbp)	Aggregated number of shares purchased
AIM(AIMX)	186.60	50,000
Total	186.60	50,000

The schedule below contains detailed and aggregated information of the individual trades made by Peel Hunt LLP as part of the buyback programme.

Schedule of Purchases - Individual Transactions

Number of shares purchased	Transaction price (GBp)	Trading venue	Time of Transaction	Trade ID
931	186.60	AIMX	08:10:00	00182568393TRLO0
230	185.00	AIMX	08:13:04	00182568590TRLO0
623	185.00	AIMX	08:13:04	00182568591TRLO0
861	186.40	AIMX	08:16:57	00182568911TRLO0
46	186.40	AIMX	08:16:57	00182568912TRLO0
878	185.60	AIMX	09:09:35	00182574310TRLO0
1,014	185.80	AIMX	09:17:50	00182574830TRLO0
905	186.20	AIMX	09:17:50	00182574831TRLO0
970	186.00	AIMX	09:18:33	00182574900TRLO0
907	185.00	AIMX	09:47:40	00182577121TRLO0
49	184.80	AIMX	10:00:09	00182577979TRLO0
807	184.80	AIMX	10:00:09	00182577980TRLO0
12	185.20	AIMX	10:18:54	00182579325TRLO0
11	185.40	AIMX	10:26:43	00182579774TRLO0
11	185.40	AIMX	10:27:39	00182579841TRLO0
4	185.40	AIMX	10:29:13	00182579929TRLO0
966	185.40	AIMX	10:37:57	00182580638TRLO0
173	185.60	AIMX	13:00:20	00182589472TRLO0
1,019	185.80	AIMX	13:04:22	00182589679TRLO0
373	185.20	AIMX	13:11:27	00182590426TRLO0
530	185.20	AIMX	13:11:27	00182590427TRLO0
47	184.80	AIMX	13:14:08	00182590627TRLO0
25	185.20	AIMX	13:35:10	00182592138TRLO0
658	185.20	AIMX	13:35:10	00182592139TRLO0
269	185.20	AIMX	13:35:10	00182592140TRLO0
139	186.80	AIMX	13:52:26	00182593607TRLO0
100	186.80	AIMX	13:52:26	00182593608TRLO0
764	186.80	AIMX	13:53:00	00182593654TRLO0
881	186.60	AIMX	13:53:10	00182593662TRLO0
882	186.00	AIMX	13:56:00	00182593814TRLO0
101	185.60	AIMX	14:18:27	00182595665TRLO0
923	185.60	AIMX	14:18:27	00182595666TRLO0
100	187.00	AIMX	15:13:03	00182605568TRLO0
33,791	187.00	AIMX	15:14:00	00182605697TRLO0

For further enquiries, please contact:

Impax Asset Management Group plc
Paul French, Head of Corporate Communications [email protected]	+44 (0)20 3912 3032

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