Q4 Aum Update
Impax Asset Management Group reported that its assets under management (AUM) totaled £26.1 billion as of September 30, 2025. This figure remained broadly flat compared to the end of the previous quarter, June 30, 2025, when total AUM was £26.126 billion, and slightly higher than the £25.3 billion at the start of the second half of the financial year. The company experienced net outflows of £1,443 million during the quarter, comprised of £1,429 million in listed equities and £14 million in fixed income, which were offset by positive market movement, FX, and performance of £1,373 million. Over the full year, net outflows totaled £12,959 million, with £12,646 million from listed equities, £230 million from fixed income, and £84 million from private markets.
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Impax, the AIM listed specialist investor focused on the transition to a more sustainable economy, today provides an update on the development of its assets under discretionary and advisory management ("AUM") for the fourth quarter of its financial year ("The Period").
On 30 September 2025, the Company's AUM totalled £26.1 billion.
Ian Simm, Chief Executive, commented:
"At £26.1 billion our assets under management were broadly flat for the fourth quarter and slightly higher than the start of the second half of our financial year (£25.3 billion). While we continued to register net outflows, there is solid evidence that flows are stabilising, including in our wholesale channel.
"During the quarter, we attracted material inflows from clients in Europe and North America. Encouragingly, we see widespread evidence that many asset owners are increasingly looking to partner with a specialist investor committed to understanding the opportunities and risks related to the transition to a more sustainable economy.
"Our investment strategies continue to register positive absolute performance, although in September many were not immune in relative terms from the dominance of AI mega-cap technology in driving global equity returns.
"We remain highly confident in the outlook for Impax, particularly our investment thesis and strong competitive positioning."
Figure 1: Movements in the Company's AUM for the quarter ended 30 September 2025.
| Listed equities | Fixed income | Private markets | Total firm | |
|---|---|---|---|---|
| £m | £m | £m | £m | |
| Total AUM at 30 June 2025 | 23,140 | 2,363 | 623 | 26,126 |
| Net flows | (1,429) | (14) | 0 | (1,443) |
| Market movement, FX and performance | 1,282 | 80 | 10 | 1,373 |
| Total AUM at 30 September 2025 | 22,993 | 2,429 | 634 | 26,055 |
Figure 2: Movements in the Company's AUM for the full year ended 30 September 2025.
| Listed equities | Fixed income | Private markets | Total firm | |
|---|---|---|---|---|
| £m | £m | £m | £m | |
| Total AUM at 30 September 2024 | 35,021 | 1,478 | 689 | 37,187 |
| Net flows | (12,646) | (230) | (84) | (12,959) |
| Acquired Assets Market movement, FX and performance | 0 618 | 1,079 102 | 0 29 | 1,079 749 |
| Total AUM at 30 September 2025 | 22,993 | 2,429 | 634 | 26,055 |
Impax is trademark of Impax Asset Management Group Plc. Impax is a registered trademark in the EU, US, Hong Kong and Australia. © Impax Asset Management LLC, Impax Asset Management Limited and/or Impax Asset Management (Ireland) Limited. All rights reserved.
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