Transaction in Own Shares

Summary by AI ^BETAClose X

Impax Asset Management Group plc announced on December 5, 2025, that it purchased 60,000 ordinary shares on December 4, 2025, as part of its ongoing buyback program. The shares were acquired at prices ranging from 144.60 GBp to 147.80 GBp, with a volume-weighted average price of 146.56 GBp. These shares are intended for cancellation. Following this transaction, Impax has bought back a total of 5,151,694 shares since the program began, leaving 127,444,860 ordinary shares in issue and zero shares held in treasury, resulting in total voting rights of 127,444,860.

Disclaimer*

Impax Asset Management Group plc

05 December 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 04 December 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	04 December 2025
Aggregate number of Ordinary 1p shares purchased	60,000
Lowest price paid per share (GBp)	144.60
Highest price paid per share (GBp)	147.80
Volume weighted average price paid per share (GBp)	146.56

The Company intends to cancel the purchased shares.

Following settlement of the above purchases, Impax has purchased a total of 5,151,694 shares since the commencement of the buyback programme and will have 127,444,860 ordinary shares of 1p pence each in issue. There are 0 shares held in treasury. The total voting rights in the Company are therefore 127,444,860 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)	146.56	60,000
Total	146.56	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
1,035	144.60	AIMX	08:00:07	00185872737TRLO0
432	146.40	AIMX	08:30:26	00185876014TRLO0
585	146.40	AIMX	08:30:26	00185876015TRLO0
1,140	146.80	AIMX	08:31:20	00185876169TRLO0
220	146.40	AIMX	08:41:05	00185877400TRLO0
790	146.40	AIMX	08:41:05	00185877401TRLO0
951	145.20	AIMX	08:45:49	00185877814TRLO0
321	145.60	AIMX	08:48:47	00185878018TRLO0
350	145.60	AIMX	08:48:47	00185878019TRLO0
397	145.60	AIMX	08:48:47	00185878020TRLO0
1,014	145.40	AIMX	08:49:06	00185878046TRLO0
1,129	146.40	AIMX	08:50:56	00185878139TRLO0
1,082	146.20	AIMX	08:56:45	00185878618TRLO0
193	146.60	AIMX	09:01:11	00185878950TRLO0
803	146.60	AIMX	09:01:11	00185878951TRLO0
1,106	146.80	AIMX	09:15:06	00185879890TRLO0
963	146.60	AIMX	09:15:07	00185879891TRLO0
286	146.60	AIMX	09:16:03	00185879976TRLO0
767	146.60	AIMX	09:16:03	00185879977TRLO0
1,118	147.20	AIMX	09:31:56	00185880986TRLO0
359	147.00	AIMX	09:33:10	00185881096TRLO0
616	147.00	AIMX	09:33:10	00185881097TRLO0
482	147.40	AIMX	09:48:12	00185882000TRLO0
562	147.40	AIMX	09:48:12	00185882001TRLO0
250	147.80	AIMX	09:57:24	00185882667TRLO0
758	147.80	AIMX	09:57:24	00185882668TRLO0
1,002	147.80	AIMX	10:00:02	00185882915TRLO0
1,157	147.80	AIMX	10:05:09	00185883177TRLO0
132	147.40	AIMX	10:09:08	00185883388TRLO0
10,000	145.60	AIMX	12:12:04	00185891665TRLO0
10,000	146.20	AIMX	13:55:56	00185897827TRLO0
20,000	147.20	AIMX	16:16:11	00185913959TRLO0

For further enquiries, please contact:

Impax Asset Management Group plc
Paul French, Head of Corporate Communications p.french@impaxam.com	+44 (0)20 3912 3032

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