IMPAX ASSET MANAGEMENT GROUP PLC

Transaction in Own Shares • Sep 26, 2025

National Storage Mechanism | Additional information

RNS Number : 9116A

Impax Asset Management Group plc

26 September 2025

26 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 25 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	25 September 2025
Aggregate number of Ordinary 1p shares purchased	60,000
Lowest price paid per share (GBp)	183.60
Highest price paid per share (GBp)	187.00
Volume weighted average price paid per share (GBp)	185.59

The Company intends to cancel the purchased shares.

Following settlement of the above purchases, Impax has purchased a total of 1,744,423 shares since the commencement of the buyback programme and will have 130,852,131 ordinary shares of 1p pence each in issue. There are 0 shares held in treasury. The total voting rights in the Company are therefore 130,852,131 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)	185.59	60,000
Total	185.59	60,000

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
5	186.40	AIMX	08:01:24	00182502673TRLO0
917	186.40	AIMX	08:01:24	00182502674TRLO0
373	187.00	AIMX	10:25:25	00182515809TRLO0
395	187.00	AIMX	10:25:25	00182515810TRLO0
235	187.00	AIMX	10:25:25	00182515811TRLO0
1,004	185.60	AIMX	10:25:47	00182515834TRLO0
143	184.80	AIMX	10:59:42	00182518445TRLO0
115	185.40	AIMX	12:02:11	00182522854TRLO0
379	185.40	AIMX	12:02:11	00182522855TRLO0
462	185.40	AIMX	12:02:11	00182522856TRLO0
25	185.40	AIMX	12:02:47	00182522923TRLO0
209	185.40	AIMX	12:08:30	00182523526TRLO0
563	185.40	AIMX	12:08:30	00182523527TRLO0
108	185.40	AIMX	12:08:30	00182523528TRLO0
45,067	186.00	AIMX	12:08:59	00182523607TRLO0
10,000	183.60	AIMX	15:42:32	00182549295TRLO0

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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