# EDGAR Filing Document

**Accession Number:** 0000076721
**File Stem:** 0002071691-26-002980
**Filing Date:** 2026-2
**Character Count:** 20974
**Document Hash:** f5c1b17592939cdf445bcc9c1fa75e87
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002071691-26-002980.hdr.sgml**: 20260223

**ACCESSION NUMBER**: 0002071691-26-002980

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260223

**DATE AS OF CHANGE**: 20260223

**PERIOD START**: 20251231

**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:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-02064
- **FILM NUMBER:** 26664596

**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 Sustainable Infrastructure Fund (Series ID: S000055846)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000175864 | Institutional Class | PXDIX           |
| C000175865 | Investor Class      | PAXDX           |

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** IMPAX FUNDS SERIES TRUST I

- **b. Investment Company Act file number:** 811-02064

- **c. CIK number of Registrant:** 0000076721

- **d. LEI of Registrant:** 549300TD5R23SWU72456

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 30 Penhallow St., Suite 100

  - **City:** Portsmouth

  - **State:** NH

  - **Foreign country:** US

  - **Zip / Postal Code:** 03801

  - **Telephone number:** 603-431-8022

**Item A.2. Information about the Series.**

- **a. Name of Series:** Impax Global Sustainable Infrastructure Fund

- **b. EDGAR series identifier (if any):** S000055846

- **c. LEI of Series:** 549300M7V6OFRLWL5549

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2025-12-31

- **b. Date as of which information is reported:** 2025-12-31

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $97677267.77

**Total Liabilities:** $55371.75

**Net Assets:** $97621896.02

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000175864 | -0.96%               | 0.68%                | 0.10%                |
| Class ID C000175865 | -0.97%               | 0.69%                | 0.04%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-263240.68              | $-805375.45                                |
| Month 2  | $917949.34               | $-412158.42                                |
| Month 3  | $827130.94               | $-878449.87                                |

### Schedule of Portfolio Investments

| Name                                                   | Title                                                   | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| AECOM                                                  | AECOM                                                   | CUSIP: 00766T100<br>LEI: 0EEB8GF0W0NPCIHZX097 | Long             | EC               | CORP              | US        |     18807 | NS      | $1792871.31   | 1.84%             |  |  |  | No            |                  1 | On Loan: No      |
| American Tower Corp.                                   | American Tower Corp.                                    | CUSIP: 03027X100<br>LEI: 5493006ORUSIL88JOE18 | Long             | EC               | CORP              | US        |     11034 | NS      | $1937239.38   | 1.98%             |  |  |  | No            |                  1 | On Loan: No      |
| American Water Works Co., Inc.                         | American Water Works Co., Inc.                          | CUSIP: 030420103<br>LEI: 549300DXHIJQMD5WFW18 | Long             | EC               | CORP              | US        |     27269 | NS      | $3558604.50   | 3.65%             |  |  |  | No            |                  1 | On Loan: No      |
| SSE plc                                                | SSE plc                                                 | CUSIP: N/A<br>LEI: 549300KI75VYLLMSK856       | Long             | EC               | CORP              | GB        |    103611 | NS      | $3037658.56   | 3.11%             |  |  |  | No            |                  2 | On Loan: No      |
| Chemed Corp.                                           | Chemed Corp.                                            | CUSIP: 16359R103<br>LEI: 54930020031IDJT2IM79 | Long             | EC               | CORP              | US        |      4794 | NS      | $2051160.84   | 2.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Clean Harbors, Inc.                                    | Clean Harbors, Inc.                                     | CUSIP: 184496107<br>LEI: 5493000SJVZVZJKHJF48 | Long             | EC               | CORP              | US        |     10273 | NS      | $2408813.04   | 2.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Cia de Saneamento Basico do Estado de Sao Paulo SABESP | Cia de Saneamento Basico do Estado de Sao Paulo SABESP  | CUSIP: 20441A102<br>LEI: 254900UOXRZRS2TNWP19 | Long             | EC               | CORP              | BR        |     84315 | NS      | $2010905.64   | 2.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Digital Realty Trust, Inc.                             | Digital Realty Trust, Inc.                              | CUSIP: 253868103<br>LEI: 549300HKCZ31D08NEI41 | Long             | EC               | CORP              | US        |     21491 | NS      | $3324872.61   | 3.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Veolia Environnement SA                                | Veolia Environnement SA                                 | CUSIP: N/A<br>LEI: 969500LENY69X51OOT31       | Long             | EC               | CORP              | FR        |     85228 | NS      | $2965721.13   | 3.04%             |  |  |  | No            |                  2 | On Loan: No      |
| Hannover Rueck SE                                      | Hannover Rueck SE                                       | CUSIP: N/A<br>LEI: 529900KIN5BE45V5KB18       | Long             | EC               | CORP              | DE        |      4972 | NS      | $1547193.54   | 1.58%             |  |  |  | No            |                  2 | On Loan: No      |
| JPMorgan U.S. Treasury Plus Money Market Fund          | JPMorgan U.S. Treasury Plus Money Market Fund, Class IM | CUSIP: 4812C2262<br>LEI: 549300WIC5LVF25Z1127 | Long             | STIV             | RF                | US        |   1048387 | NS      | $1048386.67   | 1.07%             |  |  |  | No            |                  1 | On Loan: No      |
| Schneider Electric SE                                  | Schneider Electric SE                                   | CUSIP: N/A<br>LEI: 969500A1YF1XUYYXS284       | Long             | EC               | CORP              | FR        |      6200 | NS      | $1696166.63   | 1.74%             |  |  |  | No            |                  2 | On Loan: No      |
| Elisa OYJ                                              | Elisa OYJ                                               | CUSIP: N/A<br>LEI: 743700TU2S3DXWGU7H32       | Long             | EC               | CORP              | FI        |     44483 | NS      | $1971299.29   | 2.02%             |  |  |  | No            |                  2 | On Loan: No      |
| Infineon Technologies AG                               | Infineon Technologies AG                                | CUSIP: N/A<br>LEI: TSI2PJM6EPETEQ4X1U25       | Long             | EC               | CORP              | DE        |     23560 | NS      | $1027945.47   | 1.05%             |  |  |  | No            |                  2 | On Loan: No      |
| Microsoft Corp.                                        | Microsoft Corp.                                         | CUSIP: 594918104<br>LEI: INR2EJN1ERAN0W5ZP974 | Long             | EC               | CORP              | US        |      2999 | NS      | $1450376.38   | 1.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Koninklijke KPN NV                                     | Koninklijke KPN NV                                      | CUSIP: N/A<br>LEI: 549300YO0JZHAL7FVP81       | Long             | EC               | CORP              | NL        |    208886 | NS      | $976065.10    | 1.00%             |  |  |  | No            |                  2 | On Loan: No      |
| KDDI Corp.                                             | KDDI Corp.                                              | CUSIP: N/A<br>LEI: 5299003FU7V4I45FU310       | Long             | EC               | CORP              | JP        |    115200 | NS      | $1993847.50   | 2.04%             |  |  |  | No            |                  2 | On Loan: No      |
| Delta Electronics, Inc.                                | Delta Electronics, Inc.                                 | CUSIP: N/A<br>LEI: 529900UVZWNWGDLJSM52       | Long             | EC               | CORP              | TW        |     32000 | NS      | $976126.77    | 1.00%             |  |  |  | No            |                  2 | On Loan: No      |
| NextEra Energy, Inc.                                   | NextEra Energy, Inc.                                    | CUSIP: 65339F101<br>LEI: 254900RHL9MEUS5NKX63 | Long             | EC               | CORP              | US        |     42030 | NS      | $3374168.40   | 3.46%             |  |  |  | No            |                  1 | On Loan: No      |
| Otis Worldwide Corp.                                   | Otis Worldwide Corp.                                    | CUSIP: 68902V107<br>LEI: 549300ZLBKR8VSU25153 | Long             | EC               | CORP              | US        |     27748 | NS      | $2423787.80   | 2.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Taiwan Semiconductor Manufacturing Co. Ltd.            | Taiwan Semiconductor Manufacturing Co. Ltd.             | CUSIP: 874039100<br>LEI: 549300KB6NK5SBD14S87 | Long             | EC               | CORP              | TW        |     10227 | NS      | $3107883.03   | 3.18%             |  |  |  | No            |                  1 | On Loan: No      |
| Tetra Tech, Inc.                                       | Tetra Tech, Inc.                                        | CUSIP: 88162G103<br>LEI: 549300UJ1LP7JGJC5P32 | Long             | EC               | CORP              | US        |     55548 | NS      | $1863079.92   | 1.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Union Pacific Corp.                                    | Union Pacific Corp.                                     | CUSIP: 907818108<br>LEI: 549300LMMRSZZCZ8CL11 | Long             | EC               | CORP              | US        |     16009 | NS      | $3703201.88   | 3.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Westinghouse Air Brake Technologies Corp.              | Westinghouse Air Brake Technologies Corp.               | CUSIP: 929740108<br>LEI: 06BTX5UWZD0GQ5N5Y745 | Long             | EC               | CORP              | US        |     11331 | NS      | $2418601.95   | 2.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Waste Connections, Inc.                                | Waste Connections, Inc.                                 | CUSIP: 94106B101<br>LEI: 549300HDLRTPBQU69P29 | Long             | EC               | CORP              | CA        |     22408 | NS      | $3929466.88   | 4.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Waste Management, Inc.                                 | Waste Management, Inc.                                  | CUSIP: 94106L109<br>LEI: 549300YX8JIID70NFS41 | Long             | EC               | CORP              | US        |     13798 | NS      | $3031558.58   | 3.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Welltower, Inc.                                        | Welltower, Inc.                                         | CUSIP: 95040Q104<br>LEI: 254900F33BIAR82QTA19 | Long             | EC               | CORP              | US        |     15970 | NS      | $2964191.70   | 3.04%             |  |  |  | No            |                  1 | On Loan: No      |
| Elia Group SA/NV                                       | Elia Group SA/NV                                        | CUSIP: N/A<br>LEI: 549300S1MP1NFDIKT460       | Long             | EC               | CORP              | BE        |     20692 | NS      | $2662703.86   | 2.73%             |  |  |  | No            |                  2 | On Loan: No      |
| Severn Trent plc                                       | Severn Trent plc                                        | CUSIP: N/A<br>LEI: 213800RPBXRETY4A4C59       | Long             | EC               | CORP              | GB        |     54132 | NS      | $2032714.09   | 2.08%             |  |  |  | No            |                  2 | On Loan: No      |
| Iberdrola SA                                           | Iberdrola SA                                            | CUSIP: N/A<br>LEI: 5QK37QC7NWOJ8D7WVQ45       | Long             | EC               | CORP              | ES        |    180232 | NS      | $3902634.77   | 4.00%             |  |  |  | No            |                  2 | On Loan: No      |
| China Longyuan Power Group Corp. Ltd.                  | China Longyuan Power Group Corp. Ltd., Class H          | CUSIP: N/A<br>LEI: 5299008UYLF3O6V9T464       | Long             | EC               | CORP              | CN        |   1705000 | NS      | $1455988.33   | 1.49%             |  |  |  | No            |                  2 | On Loan: No      |
| Vodacom Group Ltd.                                     | Vodacom Group Ltd.                                      | CUSIP: N/A<br>LEI: 37890012A8DC24B8D663       | Long             | EC               | CORP              | ZA        |    305737 | NS      | $2608918.81   | 2.67%             |  |  |  | No            |                  1 | On Loan: No      |
| Northland Power, Inc.                                  | Northland Power, Inc.                                   | CUSIP: 666511100<br>LEI: 8945002IJ77NEBK48M81 | Long             | EC               | CORP              | CA        |    157822 | NS      | $2052473.64   | 2.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Tele2 AB                                               | Tele2 AB, Class B                                       | CUSIP: N/A<br>LEI: 213800EKD193RVI9HL76       | Long             | EC               | CORP              | SE        |    211320 | NS      | $3541004.19   | 3.63%             |  |  |  | No            |                  2 | On Loan: No      |
| National Grid plc                                      | National Grid plc                                       | CUSIP: N/A<br>LEI: 8R95QZMKZLJX5Q2XR704       | Long             | EC               | CORP              | GB        |    190400 | NS      | $2920447.01   | 2.99%             |  |  |  | No            |                  2 | On Loan: No      |
| Canadian Pacific Kansas City Ltd.                      | Canadian Pacific Kansas City Ltd.                       | CUSIP: 13646K108<br>LEI: N/A                  | Long             | EC               | CORP              | CA        |     23582 | NS      | $1736156.13   | 1.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Siemens Energy AG                                      | Siemens Energy AG                                       | CUSIP: N/A<br>LEI: 5299005CHJZ14D4FDJ62       | Long             | EC               | CORP              | DE        |     17258 | NS      | $2421100.29   | 2.48%             |  |  |  | No            |                  2 | On Loan: No      |
| Keppel DC REIT                                         | Keppel DC REIT                                          | CUSIP: N/A<br>LEI: N/A                        | Long             | EC               | CORP              | SG        |   1959656 | NS      | $3426752.75   | 3.51%             |  |  |  | No            |                  2 | On Loan: No      |
| Hydro One Ltd.                                         | Hydro One Ltd.                                          | CUSIP: 448811208<br>LEI: 5493007QZDXTP1W2VL44 | Long             | EC               | CORP              | CA        |     63951 | NS      | $2545832.68   | 2.61%             |  |  |  | Yes           |                  1 | On Loan: No      |
| Canadian Dollar                                        | Canadian Dollar                                         | CUSIP: N/A<br>LEI: N/A                        | Long             | STIV             |  | CA        |     13714 | OU      | $9991.91      | 0.01%             |  |  |  | No            |                  1 | On Loan: No      |
| EURO                                                   | EURO                                                    | CUSIP: N/A<br>LEI: N/A                        | Long             | STIV             |  | XX        |        19 | OU      | $21.93        | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Linde plc                                              | Linde plc                                               | CUSIP: N/A<br>LEI: 5299003QR1WT0EF88V51       | Long             | EC               | CORP              | IE        |      5238 | NS      | $2233430.82   | 2.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Trane Technologies plc                                 | Trane Technologies plc                                  | CUSIP: N/A<br>LEI: 549300BURLR9SLYY2705       | Long             | EC               | CORP              | IE        |      2880 | NS      | $1120896.00   | 1.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Indian Rupee                                           | Indian Rupee                                            | CUSIP: N/A<br>LEI: N/A                        | Long             | STIV             |  | IN        |       109 | OU      | $1.22         | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Swedish Krona                                          | Swedish Krona                                           | CUSIP: N/A<br>LEI: N/A                        | Short            | STIV             |  | SE        |        -0 | OU      | $0.00         | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| New Taiwan Dollar                                      | New Taiwan Dollar                                       | CUSIP: N/A<br>LEI: N/A                        | Long             | STIV             |  | TW        |         0 | OU      | $0.00         | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Rand                                                   | Rand                                                    | CUSIP: N/A<br>LEI: N/A                        | Short            | STIV             |  | ZA        |     -4427 | OU      | $-267.31      | -0.00%            |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2026-01-30

**Name of Applicant:** IMPAX FUNDS SERIES TRUST I

**Signature:** Daniel Saltus

**Name of Signer:** Daniel Saltus

**Title:** Treasurer