# EDGAR Filing Document

**Accession Number:** 0000076721
**File Stem:** 0001398344-26-002701
**Filing Date:** 2026-2
**Character Count:** 16957
**Document Hash:** 3aaac8ccd94c243aaca53a7d5382390d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-26-002701.hdr.sgml**: 20260211

**ACCESSION NUMBER**: 0001398344-26-002701

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260211

**DATE AS OF CHANGE**: 20260211

**EFFECTIVENESS DATE**: 20260211

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** IMPAX FUNDS SERIES TRUST I
- **CENTRAL INDEX KEY:** 0000076721

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-38679
- **FILM NUMBER:** 26618442

**BUSINESS ADDRESS:**
- **STREET 1:** 30 PENHALLOW STREET, SUITE 400
- **CITY:** PORTSMOUTH
- **STATE:** NH
- **ZIP:** 03801-3852
- **BUSINESS PHONE:** 800-767-1729

**MAIL ADDRESS:**
- **STREET 1:** 30 PENHALLOW STREET, SUITE 400
- **CITY:** PORTSMOUTH
- **STATE:** NH
- **ZIP:** 03801-3852

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PAX WORLD FUNDS SERIES TRUST I
- **DATE OF NAME CHANGE:** 20070831

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PAX WORLD BALANCED FUND
- **DATE OF NAME CHANGE:** 20061113

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PAX WORLD BALANCED FUND INC
- **DATE OF NAME CHANGE:** 20040624

## Series and Classes Contracts Data

### Impax Global Environmental Markets Fund (Series ID: S000021458)

---

|  |  |  |
|:---|:---|:---|
| Class Name          | Ticker Symbol | Class ID   |
| Investor Class      | PGRNX         | C000061357 |
| Institutional Class | PGINX         | C000061358 |
| Class A             | PXEAX         | C000128849 |

---

### Impax Global Opportunities Fund (Series ID: S000062224)

---

|  |  |  |
|:---|:---|:---|
| Class Name          | Ticker Symbol | Class ID   |
| Institutional Class | PXGOX         | C000201507 |
| Investor Class      | PAXGX         | C000201508 |

---

## Series and Classes Contracts Data

### Impax Global Environmental Markets Fund (Series ID: S000021458)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000061357 | Investor Class      | PGRNX           |
| C000061358 | Institutional Class | PGINX           |
| C000128849 | Class A             | PXEAX           |

### Impax Global Opportunities Fund (Series ID: S000062224)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000201507 | Institutional Class | PXGOX           |
| C000201508 | Investor Class      | PAXGX           |

**Impax Funds Series Trust I**

Supplement Dated February 11, 2026

to the Prospectus and Statement of Additional information,

each dated May 1, 2025

Effective February 11, 2026, the Prospectus and Statement of Additional Information are amended, as follows:

**Prospectus**

**Page 55**

Under **Portfolio Managers**, the table of Portfolio Managers for Impax Global Environmental Markets Fund is deleted and replaced in its entirety with the following:

<u>Portfolio Manager</u> <u>Since</u> <u>Title</u> <br> David Winborne 2018 Portfolio Manager <br> Luciano Lilloy 2025 Portfolio Manager

**Page 149**

The description of **Siddharth Jha** under Portfolio Managers is deleted in its entirety.

**Statement of Additional Information**

**Page 93**

The table listing **Portfolio Managers** for Impax Global Environmental Markets Fund, Impax Global Opportunities Fund and Impax Global Social Leaders Fund will be replaced in its entirety with the following:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Portfolio Manager** | **Number of Other<br> Pooled Vehicles<br> Managed** | **Other Pooled<br> Vehicles AUM <br> $(million)** | **Number of <br> Other <br> Accounts<br> Managed** | **Other<br> Accounts <br> AUM<br> $(million)** | **Number of <br> Other <br> Registered<br> Investment<br> Companies<br> Managed** | **Assets of <br> Other <br> Registered<br> Investment<br> Companies <br> AUM <br> $(million)** |
| David Winborne | 0 | $0 | 0 | $0 | 0 | $0 |
| Kirsteen Morrison | 0 | $0 | 0 | $0 | 0 | $0 |
| Amber Fairbanks | 0 | $0 | 0 | $0 | 0 | $0 |
| Charles French | 0 | $0 | 0 | $0 | 0 | $0 |
| Luciano Lilloy<sup>1</sup> | 0 | $0 | 0 | $0 | 0 | $0 |

---

<sup>1</sup> Information for Mr. Lilloy is provided as of August 31, 2025.

**Page 95**

The section entitled **Portfolio Managers–Ownership of Securities** is replaced in its entirety with the following:

Unless otherwise stated, as of December 31, 2024 (i) the dollar value of shares of the Large Cap Fund owned beneficially by Joseph Cordi was $10,001- $50,000<sup>1</sup>; and by Amber Fairbanks was $0; (ii) the dollar value of shares of the Small Cap Fund owned beneficially by Curtis Kim was $10,001-$50,000; and by Nathan Moser was $100,001- $500,000; (iii) the dollar value of shares of the US Sustainable Economy Fund owned beneficially by Christine Cappabianca was $10,001-$50,000; and by Scott LaBreche was $10,001-$50,000; (iv) the dollar value of shares of the Global Sustainable Infrastructure Fund owned beneficially by Harry Boyle was $0; and by Justin Winter was $0; (v) the dollar value of shares of the International Sustainable Economy owned beneficially by Christine Cappabianca was $10,001-$50,000; and by Scott LaBreche was $50,001-$100,000; (vi) the dollar value of shares of the Global Women's Fund owned beneficially by Christine Cappabianca was $10,001-$50,000; and by Scott LaBreche was $50,001-$100,000; (vii) the dollar value of shares of the Global Environmental Markets Fund owned beneficially by Luciano Lilloy was $0<sup>2</sup> and by David Winborne was $0; (viii) the dollar value of shares of the Global Opportunities Fund owned beneficially by Kirsteen Morrison was $0; and by David Winborne was $0; (ix) the dollar value of shares of the Core Bond Fund owned beneficially by Anthony Trzcinka was $10,001-$50,000; and by Ross Pamphilon was $0<sup>3</sup>; (x) the dollar value of shares of the High Yield Bond Fund owned beneficially by Peter Schwab was $500,001- $1,000,000; (xi) the dollar value of shares of the Sustainable Allocation Fund owned beneficially by Nathan Moser was $100,001-$500,000; by Peter Schwab was $100,001-$500,000; by Anthony Trzcinka was $100,001-$500,000; and by Kirsteen Morrison was $0; (xii) the dollar value of shares of the Global Social Leaders Fund owned beneficially by Amber Fairbanks was $0; and by Charles French was $0.

<sup>1</sup> Information for Mr. Cordi is provided as of March 14, 2025.

<sup>2</sup> Information for Mr. Lilloy is provided as of August 31, 2025.

<sup>3</sup> Information for Mr. Pamphilon is provided as of May 1, 2025.

Effective March 1, 2026, the Prospectus and Statement of Additional Information are amended, as follows:

**Prospectus**

**Page 47**

Under **Portfolio Managers**, the table of Portfolio Managers for Impax Global Opportunities Fund is deleted and replaced in its entirety with the following:

---

| | | |
|:---|:---|:---|
| Portfolio Manager | Since | Title |
| Kirsteen Morrison | 2018 | Portfolio Manager |
| David Winborne | 2018 | Portfolio Manager |
| Amber Fairbanks | 2026 | Portfolio Manager |

---

**Page 149**

The description for Ms. Fairbanks in the section entitled **Portfolio Managers** is deleted and replaced in its entirety with the following:

**Amber Fairbanks, CFA** is a Portfolio Manager of the Large Cap Fund, the Global Social Leaders Fund and the Global Opportunities Fund. Prior to joining IAM in 2023, Ms. Fairbanks worked at Mirova where she was co-manager of the Mirova International Sustainable Equity, US Sustainable Equity and Global Sustainable Equity Funds. Prior to joining Mirova in October 2018, she was a portfolio manager and analyst at Zevin Asset Management for over a decade. Ms. Fairbanks received her MBA from Boston College Carroll School of Management and has a BS in Environmental Science from the University of Massachusetts Amherst. She is a CFA<sup>®</sup> charterholder and a member of the Chartered Financial Analysts Institute and the Boston Security Analysts Society.

**Page 95**

The section entitled **Portfolio Managers–Ownership of Securities** is replaced in its entirety with the following:

Unless otherwise stated, as of December 31, 2024 (i) the dollar value of shares of the Large Cap Fund owned beneficially by Joseph Cordi was $10,001- $50,000<sup>1</sup>; and by Amber Fairbanks was $0; (ii) the dollar value of shares of the Small Cap Fund owned beneficially by Curtis Kim was $10,001-$50,000; and by Nathan Moser was $100,001- $500,000; (iii) the dollar value of shares of the US Sustainable Economy Fund owned beneficially by Christine Cappabianca was $10,001-$50,000; and by Scott LaBreche was $10,001-$50,000; (iv) the dollar value of shares of the Global Sustainable Infrastructure Fund owned beneficially by Harry Boyle was $0; and by Justin Winter was $0; (v) the dollar value of shares of the International Sustainable Economy owned beneficially by Christine Cappabianca was $10,001-$50,000; and by Scott LaBreche was $50,001-$100,000; (vi) the dollar value of shares of the Global Women's Fund owned beneficially by Christine Cappabianca was $10,001-$50,000; and by Scott LaBreche was $50,001-$100,000; (vii) the dollar value of shares of the Global Environmental Markets Fund owned beneficially by Luciano Lilloy was $0<sup>2</sup> and by David Winborne was $0; (viii) the dollar value of shares of the Global Opportunities Fund owned beneficially by Kirsteen Morrison was $0; by David Winborne was $0; and by Amber Fairbanks was $0<sup>3</sup>; (ix) the dollar value of shares of the Core Bond Fund owned beneficially by Anthony Trzcinka was $10,001-$50,000; and by Ross Pamphilon was $0<sup>4</sup>; (x) the dollar value of shares of the High Yield Bond Fund owned beneficially by Peter Schwab was $500,001- $1,000,000; (xi) the dollar value of shares of the Sustainable Allocation Fund owned beneficially by Nathan Moser was $100,001-$500,000; by Peter Schwab was $100,001-$500,000; by Anthony Trzcinka was $100,001-$500,000; and by Kirsteen Morrison was $0; (xii) the dollar value of shares of the Global Social Leaders Fund owned beneficially by Amber Fairbanks was $0; and by Charles French was $0.

<sup>1</sup> Information for Mr. Cordi is provided as of March 14, 2025.

<sup>2</sup> Information for Mr. Lilloy is provided as of August 31, 2025.

<sup>3</sup> Information for Ms. Fairbanks is provided as of February 11, 2026.

<sup>4</sup> Information for Mr. Pamphilon is provided as of May 1, 2025.

Effective March 31, 2026, the Prospectus and Statement of Additional Information are amended, as follows:

**Prospectus**

**Page 47**

Under **Portfolio Managers**, the table of Portfolio Managers for Impax Global Opportunities Fund is deleted and replaced in its entirety with the following:

<u>Portfolio Manager</u> <u>Since</u> <u>Title</u> <br> Kirsteen Morrison 2018 Portfolio Manager <br> Amber Fairbanks 2026 Portfolio Manager

**Page 55**

Under **Portfolio Managers**, the table of Portfolio Managers for Impax Global Environmental Markets Fund is deleted and replaced in its entirety with the following:

---

| | | |
|:---|:---|:---|
| Portfolio Manager | Since | Title |
| Luciano Lilloy | 2025 | Portfolio Manager |
| Fotis Chatzimichalakis | 2026 | Portfolio Manager |
| Sanjeev Lakhani | 2026 | Portfolio Manager |

---

**Page 147**

The following descriptions are added to the section entitled **Portfolio Managers**:

**Fotis Chatzimichalakis, CFA** is a Portfolio Manager of the Global Environmental Markets Fund. Mr. Chatzimichalakis researches stocks globally, focusing on the information technology and industrials sectors. He originally joined Impax as an intern in 2015, working in the listed equities team. He has held portfolio manager roles at Impax since 2021. Prior to joining the firm, he had an internship at Barchester Green Investment. A CFA<sup>®</sup> charterholder, Mr. Chatzimichalakis also holds the Investment Management Certificate. He has a master's degree in Civil Engineering from the National Technical University of Athens and a master's degree in Sustainable Energy Systems from the University of Edinburgh.

**Sanjeev Lakhani, CFA** is a Portfolio Manager of the Global Environmental Markets Fund. He is also responsible for idea generation, fundamental research and thought leadership for Impax's Thematic and Lens strategies with a primary focus on the industrials sector. Before joining Impax in 2023, Mr. Lakhani was an Assistant Portfolio Manager at Highclere International Investors, where he also worked as an Investment Analyst covering Industrials and Utilities. Before that, he was an Investment Manager at Janus Henderson Investors. Mr. Lakhani started his career at PwC where he worked in corporate finance and qualified as a chartered accountant (ACA). He holds a BSc in economics from the London School of Economics. He is a CFA<sup>®</sup> charterholder and a member of the Institute of Chartered Accountants in England and Wales.

**Page 151**

The description of David Winborne under **Portfolio Managers** is deleted in its entirety.

**Statement of Additional Information**

**Page 93**

The table listing **Portfolio Managers** for Impax Global Environmental Markets Fund, Impax Global Opportunities Fund and Impax Global Social Leaders Fund will be replaced in its entirety with the following:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Portfolio Manager** | **Number of Other<br> Pooled Vehicles<br> Managed** | **Other Pooled<br> Vehicles AUM <br> $(million)** | **Number of <br> Other <br> Accounts<br> Managed** | **Other<br> Accounts <br> AUM<br> $(million)** | **Number of <br> Other <br> Registered<br> Investment<br> Companies<br> Managed** | **Assets of <br> Other <br> Registered<br> Investment<br> Companies <br> AUM <br> $(million)** |
| Kirsteen Morrison | 0 | $0 | 0 | $0 | 0 | $0 |
| Amber Fairbanks | 0 | $0 | 0 | $0 | 0 | $0 |
| Charles French | 0 | $0 | 0 | $0 | 0 | $0 |
| Luciano Lilloy<sup>1</sup> | 0 | $0 | 0 | $0 | 0 | $0 |
| Fotis Chatzimichalakis<sup>2</sup> | 0 | $0 | 0 | $0 | 0 | $0 |
| Sanjeev Lakhani<sup>2</sup> | 0 | $0 | 0 | $0 | 0 | $0 |

---

<sup>1</sup> Information for Mr. Lilloy is provided as of August 31, 2025.

<sup>2</sup> Information for Messrs. Chatzimichalakis and Lakhani is provided as of February 11, 2026.

**Page 95**

The section entitled **Portfolio Managers–Ownership of Securities** is replaced in its entirety with the following:

Unless otherwise stated, as of December 31, 2024 (i) the dollar value of shares of the Large Cap Fund owned beneficially by Joseph Cordi was $10,001- $50,000<sup>1</sup>; and by Amber Fairbanks was $0; (ii) the dollar value of shares of the Small Cap Fund owned beneficially by Curtis Kim was $10,001-$50,000; and by Nathan Moser was $100,001- $500,000; (iii) the dollar value of shares of the US Sustainable Economy Fund owned beneficially by Christine Cappabianca was $10,001-$50,000; and by Scott LaBreche was $10,001-$50,000; (iv) the dollar value of shares of the Global Sustainable Infrastructure Fund owned beneficially by Harry Boyle was $0; and by Justin Winter was $0; (v) the dollar value of shares of the International Sustainable Economy owned beneficially by Christine Cappabianca was $10,001-$50,000; and by Scott LaBreche was $50,001-$100,000; (vi) the dollar value of shares of the Global Women's Fund owned beneficially by Christine Cappabianca was $10,001-$50,000; and by Scott LaBreche was $50,001-$100,000; (vii) the dollar value of shares of the Global Environmental Markets Fund owned beneficially by Luciano Lilloy was $0<sup>2</sup>; by Fotis Chatzimichalakis was $0<sup>3</sup>; and by Sanjeev Lakhani was $0<sup>3</sup>; (viii) the dollar value of shares of the Global Opportunities Fund owned beneficially by Kirsteen Morrison was $0; and by Amber Fairbanks was $0<sup>4</sup>; (ix) the dollar value of shares of the Core Bond Fund owned beneficially by Anthony Trzcinka was $10,001-$50,000; and by Ross Pamphilon was $0<sup>5</sup>; (x) the dollar value of shares of the High Yield Bond Fund owned beneficially by Peter Schwab was $500,001- $1,000,000; (xi) the dollar value of shares of the Sustainable Allocation Fund owned beneficially by Nathan Moser was $100,001-$500,000; by Peter Schwab was $100,001-$500,000; by Anthony Trzcinka was $100,001-$500,000; and by Kirsteen Morrison was $0; (xii) the dollar value of shares of the Global Social Leaders Fund owned beneficially by Amber Fairbanks was $0; and by Charles French was $0.

<sup>1</sup> Information for Mr. Cordi is provided as of March 14, 2025.

<sup>2</sup> Information for Mr. Lilloy is provided as of August 31, 2025.

<sup>3</sup> Information for Messrs. Chatzimichalakis and Lakhani is provided as of February 11, 2026.

<sup>4</sup> Information for Ms. Fairbanks is provided as of February 11, 2026.

<sup>5</sup> Information for Mr. Pamphilon is provided as of May 1, 2025.