# IMPAX FUNDS SERIES TRUST I

IMPAX FUNDS SERIES TRUST I (CIK 76721) is an SEC-registered fund company with 12 reporting fund series and $9.2B in net assets as of 2026-03-31.

## Registrant

- CIK: 76721
- File number: 811-02064
- LEI: 549300TD5R23SWU72456
- Address: 30 Penhallow St., Suite 100, Portsmouth, US-NH, 03801
- Phone: 603-431-8022
- Net assets: $9.2B
- Total assets: $9.3B
- Fund series: 12
- Latest report: 2026-03-31

## Fund series (12)

| Series | Net assets |
| --- | --- |
| [Impax Sustainable Allocation Fund](https://search.stillhousedata.com/fund/S000011971) | $2.3B |
| [Impax International Sustainable Economy Fund](https://search.stillhousedata.com/fund/S000044216) | $1.6B |
| [Impax Global Environmental Markets Fund](https://search.stillhousedata.com/fund/S000021458) | $1.5B |
| [Impax Core Bond Fund](https://search.stillhousedata.com/fund/S000055845) | $852.8M |
| [Impax US Sustainable Economy Fund](https://search.stillhousedata.com/fund/S000015763) | $793.7M |
| [Impax Small Cap Fund](https://search.stillhousedata.com/fund/S000021459) | $741.1M |
| [Impax Large Cap Fund](https://search.stillhousedata.com/fund/S000055844) | $567.7M |
| [Impax High Yield Bond Fund](https://search.stillhousedata.com/fund/S000015758) | $523.9M |
| [Impax Global Infrastructure ETF](https://search.stillhousedata.com/fund/S000098391) | $106.7M |
| [Impax Global Sustainable Infrastructure Fund](https://search.stillhousedata.com/fund/S000055846) | $97.6M |
| [Impax Global Opportunities Fund](https://search.stillhousedata.com/fund/S000062224) | $87.6M |
| [Impax Global Social Leaders Fund](https://search.stillhousedata.com/fund/S000083017) | $2.2M |

## Largest reported holdings (across all series)

| Holding | Value |
| --- | --- |
| [NVIDIA Corp.](https://search.stillhousedata.com/security/67066G104) | $530K |
| Halma plc | $377K |
| [eBay, Inc.](https://search.stillhousedata.com/security/278642103) | $322K |
| [Mastercard, Inc.](https://search.stillhousedata.com/security/57636Q104) | $310K |
| Danone SA | $239K |
| Banco Bilbao Vizcaya Argentaria SA | $206K |
| [American Water Works Co., Inc.](https://search.stillhousedata.com/security/030420103) | $203K |
| Experian plc | $196K |
| [Voya Financial, Inc.](https://search.stillhousedata.com/security/929089100) | $192K |
| [Pinnacle Financial Partners, Inc.](https://search.stillhousedata.com/security/72348N109) | $192K |
| [Ventas, Inc.](https://search.stillhousedata.com/security/92276F100) | $179K |
| AIA Group Ltd. | $177K |
| [MercadoLibre, Inc.](https://search.stillhousedata.com/security/58733R102) | $176K |
| Haleon plc | $175K |
| [Autoliv, Inc.](https://search.stillhousedata.com/security/052800109) | $172K |

## More

- [CIK 76721 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=76721&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/registrant/76721.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.