# EDGAR Filing Document

**Accession Number:** 0000877232
**File Stem:** 0001193125-26-144603
**Filing Date:** 2026-4
**Character Count:** 218176
**Document Hash:** 90f24eb0eabd1f214323d6b8bb0fd3e0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-144603.hdr.sgml**: 20260407

**ACCESSION NUMBER**: 0001193125-26-144603

**CONFORMED SUBMISSION TYPE**: N-CSRS

**PUBLIC DOCUMENT COUNT**: 37

**CONFORMED PERIOD OF REPORT**: 20260131

**FILED AS OF DATE**: 20260407

**DATE AS OF CHANGE**: 20260407

**EFFECTIVENESS DATE**: 20260407

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** GREEN CENTURY FUNDS
- **CENTRAL INDEX KEY:** 0000877232

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0731

**FILING VALUES:**
- **FORM TYPE:** N-CSRS
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-06351
- **FILM NUMBER:** 26843034

**BUSINESS ADDRESS:**
- **STREET 1:** 114 STATE STREET
- **STREET 2:** SUITE 200
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109
- **BUSINESS PHONE:** 617-482-0800

**MAIL ADDRESS:**
- **STREET 1:** C/O UMB FUND SERVICES
- **STREET 2:** 803 WEST MICHIGAN STREET SUITE A
- **CITY:** MILWAUKEE
- **STATE:** WI
- **ZIP:** 53233

## Series and Classes Contracts Data

### GREEN CENTURY BALANCED FUND (Series ID: S000007714)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000020964 | Individual Investor Class | GCBLX           |
| C000225233 | Institutional Class       | GCBUX           |

### GREEN CENTURY EQUITY FUND (Series ID: S000007715)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000020965 | Individual Investor Class | GCEQX           |
| C000202490 | Institutional Class       | GCEUX           |

### Green Century MSCI International Index Fund (Series ID: S000055094)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000173337 | Individual Investor Class | GCINX           |
| C000173338 | Institutional Class       | GCIFX           |

?xml version='1.0' encoding='ASCII'? GREEN CENTURY FUNDS

#### UNITED STATES

#### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

------

#### FORM N-CSR

------

#### CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

#### Investment Company Act file number

#### 811-06351

#### Green Century Funds

#### (Exact name of registrant as specified in charter)

------

#### 114 State Street

#### Suite 200

#### Boston, MA 02109

#### (Address of principal executive offices)

#### Green Century Capital Management, Inc.

#### 114 State Street

#### Suite 200

#### Boston, MA 02109

#### (Name and address of agent for service)

#### Registrant's telephone number, including area code:
&nbsp;&nbsp;&nbsp;&nbsp;(617) 482-0800

#### Date of fiscal year end:

#### July 31

#### Date of reporting period:

#### January 31, 2026

#### Item 1. Report to Stockholders.
(a) The following is a copy of the report transmitted to shareholders pursuant to Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1).

Green Century Balanced Fund

Individual Investor Class/GCBLX

![Green Century TSR Logo Cover 1](g71349images_428.jpg)

#### Semi-Annual Shareholder Report \| January 31, 2026
*For information on the Green Century Funds<sup>®</sup>, call 1-800-93-GREEN. For information on how to open an account and account services, call 1-800-221-5519 8:00 am to 6:00 pm Eastern Time, Monday through Friday. For daily share price information twenty-four hours a day, visit *www.greencentury.com*.*

#### What were the Fund costs for the last year?
*(Based on a hypothetical $10,000 investment)*

The below table explains the costs that you would have paid within the reporting period.

---

| | |
|:---|:---|
| Fund (Class) | Costs of a $10,000 investment |
| Green Century Balanced Fund<br>(Individual Investor Class/GCBLX) | $721.39%<sup>1</sup> |

---

 **<sup>1</sup>** **Annualized.** 

#### Fund Performance
The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the Fund. It assumes a $10,000 initial investment at the beginning of the first fiscal year in an appropriate broad-based securities market index for the same period.

![Fund Performance - Growth of 10K](g71349chartimages_1079582.jpg)

---

| | | | |
|:---|:---|:---|:---|
| AVERAGE ANNUAL TOTAL RETURN | 1 Year | 5 Years | 10 Years |
| Green Century Balanced Fund (Individual Investor Class/GCBLX) | 8.03% | 5.70% | 8.43% |
| S&P 1500 Index Benchmark<sup>1,2</sup> | 15.68% | 14.49% | 15.25% |
| Lipper Balanced Index<sup>3</sup> | 12.86% | 7.25% | 8.69% |
| Custom Index<sup>4,5</sup> | 12.46% | 9.40% | 10.47% |
| Custom Balanced Index<sup>6</sup> | 12.08% | 9.18% | 10.13% |

---

 **<sup>1</sup>** **The Regulatory Index is provided as a broad measure of market performance.** 

 **<sup>2</sup>** **The S&P 1500 Index is an unmanaged index of 1500 stocks.** 

 **<sup>3</sup>** **The Lipper Balanced Index is an equally weighted index of the 30 largest U.S. Balanced Funds.** 

 **<sup>4</sup>** **The Performance Index is provided because the advisor believes it is more reflective of the fund's investment strategy. The investment return and principal value of shares of the Fund fluctuate, so your shares, when sold, may be worth more or less than their original cost.** 

 **<sup>5</sup>** **The Custom Index is comprised of a 60% weighting in the S&P 1500 Index and a 40% weighting in the Bloomberg U.S. Intermediate Credit (1-10 Year) Index. Effective December 1, 2025 the Custom Index replaced the Custom Balanced Index as the primary benchmark.** 

 **<sup>6</sup>** **The Custom Balanced Index is comprised of a 60% weighting in the S&P 1500 Index and a 40% weighting in the BofA Merrill Lynch 1-10 Year US Corporate & Government Index.** 

**The Fund's past performance is not a good predictor of the Fund's future performance.**

Visit www.greencentury.com/balanced-fund/ for the most recent performance information. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.

#### Key Fund Statistics
The following table outlines key fund statistic that you should pay attention to

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;**Fund net assets** | &nbsp;&nbsp;&nbsp;&nbsp;$379 mil. |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total number of portfolio holdings** | &nbsp;&nbsp;&nbsp;&nbsp;334 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Portfolio turnover rate as of the end of the reporting period** | &nbsp;&nbsp;&nbsp;&nbsp;30% |

---

#### Graphical Representation of Holdings
The tables below show the investment make up of the Fund, representing percentage of total net assets of the Fund. The Top Ten Holdings and Sector Allocation exclude short-term holdings, if any. The Sector Allocation chart represents Common Stocks of the Fund.

**Top Ten Holdings**

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;NVIDIA Corporation | 5.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;Alphabet, Inc., Class A | 5.3% |
| &nbsp;&nbsp;&nbsp;&nbsp;Apple, Inc. | 4.1% |
| &nbsp;&nbsp;&nbsp;&nbsp;Microsoft Corporation | 4.1% |
| &nbsp;&nbsp;&nbsp;&nbsp;Mastercard, Inc., Class A | 2.1% |
| &nbsp;&nbsp;&nbsp;&nbsp;Costco Wholesale Corporation | 1.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;Broadcom, Inc. | 1.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;PNC Financial Services Group, Inc. (The) | 1.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;ASML Holding NV | 1.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;Bank of America Corporation | 1.4% |

---

**Sector Allocation**

![Graphical Representation - Allocation 1 Chart](g71349chartimages_1079587.jpg)

**Asset Allocation**

![Graphical Representation - Allocation 2 Chart](g71349chartimages_1079592.jpg)

#### Availability of Additional Information
You can find additional information on the Fund's website:

• &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; www.greencentury.com/regulatory-filings/

You can also request this information by contacting us at 1-800-221-5519.

#### Householding
Shareholders who have consented to receive a single annual or semi-annual shareholder report at a shared address may revoke this consent by contacting us at 1-800-221-5519.

![Green Centurty TSR QR Code](g71349images_429.jpg)

For additional information please scan the code for hosted material at *www.greencentury.com* 

GREEN CENTURY FUNDS

Green Century Balanced Fund

Institutional Class/GCBUX

![Green Century TSR Logo Cover 1](g71349images_428.jpg)

#### Semi-Annual Shareholder Report \| January 31, 2026
*For information on the Green Century Funds<sup>®</sup>, call 1-800-93-GREEN. For information on how to open an account and account services, call 1-800-221-5519 8:00 am to 6:00 pm Eastern Time, Monday through Friday. For daily share price information twenty-four hours a day, visit *www.greencentury.com*.*

#### What were the Fund costs for the last year?
*(Based on a hypothetical $10,000 investment)*

The below table explains the costs that you would have paid within the reporting period.

---

| | |
|:---|:---|
| Fund (Class) | Costs of a $10,000 investment |
| Green Century Balanced Fund<br>(Institutional Class/GCBUX) | $561.09%<sup>1</sup> |

---

 **<sup>1</sup>** **Annualized.** 

#### Fund Performance
The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the Fund. It assumes a $250,000 initial investment at the beginning of the first fiscal year in an appropriate broad-based securities market index for the same period. Institutional Shares were offered as of November 28, 2020. The Institutional Share Class performance prior to November 28, 2020 reflects the performance of the Fund's Individual Investor Class.

![Fund Performance - Growth of 10K](g71349chartimages_1079618.jpg)

---

| | | | |
|:---|:---|:---|:---|
| AVERAGE ANNUAL TOTAL RETURN | 1 Year | 5 Years | 10 Years |
| Green Century Balanced Fund (Institutional Class/GCBUX) | 8.35% | 6.01% | 8.60% |
| S&P 1500 Index Benchmark<sup>1,2</sup> | 15.68% | 14.49% | 15.25% |
| Lipper Balanced Index<sup>3</sup> | 12.86% | 7.25% | 8.69% |
| Custom Index<sup>4,5</sup> | 12.46% | 9.40% | 10.47% |
| Custom Balanced Index<sup>6</sup> | 12.08% | 9.18% | 10.13% |

---

 **<sup>1</sup>** **The Regulatory Index is provided as a broad measure of market performance.** 

 **<sup>2</sup>** **The S&P 1500 Index is an unmanaged index of 1500 stocks.** 

 **<sup>3</sup>** **The Lipper Balanced Index is an equally weighted index of the 30 largest U.S. Balanced Funds.** 

 **<sup>4</sup>** **The Performance Index is provided because the advisor believes it is more reflective of the fund's investment strategy. The investment return and principal value of shares of the Fund fluctuate, so your shares, when sold, may be worth more or less than their original cost.** 

 **<sup>5</sup>** **The Custom Index is comprised of a 60% weighting in the S&P 1500 Index and a 40% weighting in the Bloomberg U.S. Intermediate Credit (1-10 Year) Index. Effective December 1, 2025 the Custom Index replaced the Custom Balanced Index as the primary benchmark.** 

 **<sup>6</sup>** **The Custom Balanced Index is comprised of a 60% weighting in the S&P 1500 Index and a 40% weighting in the BofA Merrill Lynch 1-10 Year US Corporate & Government Index.** 

**The Fund's past performance is not a good predictor of the Fund's future performance.**

Visit www.greencentury.com/balanced-fund-institutional/ for the most recent performance information. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.

#### Key Fund Statistics
The following table outlines key fund statistic that you should pay attention to

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;**Fund net assets** | &nbsp;&nbsp;&nbsp;&nbsp;$379 mil. |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total number of portfolio holdings** | &nbsp;&nbsp;&nbsp;&nbsp;334 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Portfolio turnover rate as of the end of the reporting period** | &nbsp;&nbsp;&nbsp;&nbsp;30% |

---

#### Graphical Representation of Holdings
The tables below show the investment make up of the Fund, representing percentage of total net assets of the Fund. The Top Ten Holdings and Sector Allocation exclude short-term holdings, if any. The Sector Allocation chart represents Common Stocks of the Fund.

**Top Ten Holdings**

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;NVIDIA Corporation | 5.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;Alphabet, Inc., Class A | 5.3% |
| &nbsp;&nbsp;&nbsp;&nbsp;Apple, Inc. | 4.1% |
| &nbsp;&nbsp;&nbsp;&nbsp;Microsoft Corporation | 4.1% |
| &nbsp;&nbsp;&nbsp;&nbsp;Mastercard, Inc., Class A | 2.1% |
| &nbsp;&nbsp;&nbsp;&nbsp;Costco Wholesale Corporation | 1.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;Broadcom, Inc. | 1.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;PNC Financial Services Group, Inc. (The) | 1.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;ASML Holding NV | 1.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;Bank of America Corporation | 1.4% |

---

**Sector Allocation**

![Graphical Representation - Allocation 1 Chart](g71349chartimages_1079623.jpg)

**Asset Allocation**

![Graphical Representation - Allocation 2 Chart](g71349chartimages_1079628.jpg)

#### Availability of Additional Information
You can find additional information on the Fund's website:

• &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; www.greencentury.com/regulatory-filings/

You can also request this information by contacting us at 1-800-221-5519.

#### Householding
Shareholders who have consented to receive a single annual or semi-annual shareholder report at a shared address may revoke this consent by contacting us at 1-800-221-5519.

![Green Centurty TSR QR Code](g71349images_429.jpg)

For additional information please scan the code for hosted material at *www.greencentury.com* 

GREEN CENTURY FUNDS

Green Century Equity Fund

Individual Investor Class/GCEQX

![Green Century TSR Logo Cover 1](g71349images_428.jpg)

#### Semi-Annual Shareholder Report \| January 31, 2026
*For information on the Green Century Funds<sup>®</sup>, call 1-800-93-GREEN. For information on how to open an account and account services, call 1-800-221-5519 8:00 am to 6:00 pm Eastern Time, Monday through Friday. For daily share price information twenty-four hours a day, visit *www.greencentury.com*.*

#### What were the Fund costs for the last year?
*(Based on a hypothetical $10,000 investment)*

The below table explains the costs that you would have paid within the reporting period.

---

| | |
|:---|:---|
| Fund (Class) | Costs of a $10,000 investment |
| Green Century Equity Fund<br>(Individual Investor Class/GCEQX) | $631.20%<sup>1</sup> |

---

 **<sup>1</sup>** **Annualized.** 

#### Fund Performance
The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the Fund. It assumes a $10,000 initial investment at the beginning of the first fiscal year in an appropriate broad-based securities market index for the same period.

![Fund Performance - Growth of 10K](g71349chartimages_1079438.jpg)

---

| | | | |
|:---|:---|:---|:---|
| AVERAGE ANNUAL TOTAL RETURN | 1 Year | 5 Years | 10 Years |
| Green Century Equity Fund (Individual Investor Class/GCEQX) | 16.65% | 13.12% | 14.66% |
| S&P 500 Index | 16.35% | 14.99% | 15.57% |

---

**The Fund's past performance is not a good predictor of the Fund's future performance.**

Visit www.greencentury.com/equity-fund/ for the most recent performance information. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. The investment return and principal value of shares of the Fund fluctuate, so your shares, when sold, may be worth more or less than their original cost.

#### Key Fund Statistics
The following table outlines key fund statistic that you should pay attention to

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;**Fund net assets** | &nbsp;&nbsp;&nbsp;&nbsp;$764 mil. |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total number of portfolio holdings** | &nbsp;&nbsp;&nbsp;&nbsp;333 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Portfolio turnover rate as of the end of the reporting period** | &nbsp;&nbsp;&nbsp;&nbsp;2% |

---

#### Graphical Representation of Holdings
The tables below show the investment make up of the Fund, representing percentage of total net assets of the Fund. The Top Ten Holdings and Sector Allocation exclude short-term holdings, if any. The Sector Allocation chart represents Common Stocks of the Fund.

**Top Ten Holdings**

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;NVIDIA Corporation | 15.9% |
| &nbsp;&nbsp;&nbsp;&nbsp;Microsoft Corporation | 10.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;Alphabet, Inc., Class A | 6.8% |
| &nbsp;&nbsp;&nbsp;&nbsp;Alphabet, Inc., Class C | 5.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;Tesla, Inc. | 4.2% |
| &nbsp;&nbsp;&nbsp;&nbsp;Visa, Inc., Class A | 1.9% |
| &nbsp;&nbsp;&nbsp;&nbsp;Mastercard, Inc., Class A | 1.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;AbbVie, Inc. | 1.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;Advanced Micro Devices, Inc. | 1.3% |
| &nbsp;&nbsp;&nbsp;&nbsp;Home Depot, Inc. (The) | 1.3% |

---

**Sector Allocation**

![Graphical Representation - Allocation 1 Chart](g71349chartimages_1079443.jpg)

**Asset Allocation**

![Graphical Representation - Allocation 2 Chart](g71349chartimages_1079448.jpg)

#### Availability of Additional Information
You can find additional information on the Fund's website:

• &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; www.greencentury.com/regulatory-filings/

You can also request this information by contacting us at 1-800-221-5519.

#### Householding
Shareholders who have consented to receive a single annual or semi-annual shareholder report at a shared address may revoke this consent by contacting us at 1-800-221-5519.

![Green Centurty TSR QR Code](g71349images_429.jpg)

For additional information please scan the code for hosted material at *www.greencentury.com* 

GREEN CENTURY FUNDS

Green Century Equity Fund

Institutional Class/GCEUX

![Green Century TSR Logo Cover 1](g71349images_428.jpg)

#### Semi-Annual Shareholder Report \| January 31, 2026
*For information on the Green Century Funds<sup>®</sup>, call 1-800-93-GREEN. For information on how to open an account and account services, call 1-800-221-5519 8:00 am to 6:00 pm Eastern Time, Monday through Friday. For daily share price information twenty-four hours a day, visit *www.greencentury.com*.*

#### What were the Fund costs for the last year?
*(Based on a hypothetical $10,000 investment)*

The below table explains the costs that you would have paid within the reporting period.

---

| | |
|:---|:---|
| Fund (Class) | Costs of a $10,000 investment |
| Green Century Equity Fund<br>(Institutional Class/GCEUX) | $480.90%<sup>1</sup> |

---

 **<sup>1</sup>** **Annualized.** 

#### Fund Performance
The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the Fund. It assumes a $250,000 initial investment at the beginning of the first fiscal year in an appropriate broad-based securities market index for the same period. The Institutional Share Class performance for periods prior to April 30, 2018 reflects the performance of the Fund's Individual Investor Class.

![Fund Performance - Growth of 10K](g71349chartimages_1079474.jpg)

---

| | | | |
|:---|:---|:---|:---|
| AVERAGE ANNUAL TOTAL RETURN | 1 Year | 5 Years | 10 Years |
| Green Century Equity Fund (Institutional Class/GCEUX) | 17.00% | 13.46% | 14.93% |
| S&P 500 Index | 16.35% | 14.99% | 15.57% |

---

**The Fund's past performance is not a good predictor of the Fund's future performance.**

Visit www.greencentury.com/equity-fund-institutional/ for the most recent performance information. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. The investment return and principal value of shares of the Fund fluctuate, so your shares, when sold, may be worth more or less than their original cost.

#### Key Fund Statistics
The following table outlines key fund statistic that you should pay attention to

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;**Fund net assets** | &nbsp;&nbsp;&nbsp;&nbsp;$764 mil. |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total number of portfolio holdings** | &nbsp;&nbsp;&nbsp;&nbsp;333 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Portfolio turnover rate as of the end of the reporting period** | &nbsp;&nbsp;&nbsp;&nbsp;2% |

---

#### Graphical Representation of Holdings
The tables below show the investment make up of the Fund, representing percentage of total net assets of the Fund. The Top Ten Holdings and Sector Allocation exclude short-term holdings, if any. The Sector Allocation chart represents Common Stocks of the Fund.

**Top Ten Holdings**

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;NVIDIA Corporation | 15.9% |
| &nbsp;&nbsp;&nbsp;&nbsp;Microsoft Corporation | 10.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;Alphabet, Inc., Class A | 6.8% |
| &nbsp;&nbsp;&nbsp;&nbsp;Alphabet, Inc., Class C | 5.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;Tesla, Inc. | 4.2% |
| &nbsp;&nbsp;&nbsp;&nbsp;Visa, Inc., Class A | 1.9% |
| &nbsp;&nbsp;&nbsp;&nbsp;Mastercard, Inc., Class A | 1.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;AbbVie, Inc. | 1.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;Advanced Micro Devices, Inc. | 1.3% |
| &nbsp;&nbsp;&nbsp;&nbsp;Home Depot, Inc. (The) | 1.3% |

---

**Sector Allocation**

![Graphical Representation - Allocation 1 Chart](g71349chartimages_1079479.jpg)

**Asset Allocation**

![Graphical Representation - Allocation 2 Chart](g71349chartimages_1079484.jpg)

#### Availability of Additional Information
You can find additional information on the Fund's website:

• &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; www.greencentury.com/regulatory-filings/

You can also request this information by contacting us at 1-800-221-5519.

#### Householding
Shareholders who have consented to receive a single annual or semi-annual shareholder report at a shared address may revoke this consent by contacting us at 1-800-221-5519.

![Green Centurty TSR QR Code](g71349images_429.jpg)

For additional information please scan the code for hosted material at *www.greencentury.com* 

GREEN CENTURY FUNDS

Green Century MSCI International Index Fund

Individual Investor Class/GCINX

![Green Century TSR Logo Cover 1](g71349images_428.jpg)

#### Semi-Annual Shareholder Report \| January 31, 2026
*For information on the Green Century Funds<sup>®</sup>, call 1-800-93-GREEN. For information on how to open an account and account services, call 1-800-221-5519 8:00 am to 6:00 pm Eastern Time, Monday through Friday. For daily share price information twenty-four hours a day, visit *www.greencentury.com*.*

#### What were the Fund costs for the last year?
*(Based on a hypothetical $10,000 investment)*

The below table explains the costs that you would have paid within the reporting period.

---

| | |
|:---|:---|
| Fund (Class) | Costs of a $10,000 investment |
| Green Century MSCI International Index Fund<br>(Individual Investor Class/GCINX) | $681.28%<sup>1</sup> |

---

 **<sup>1</sup>** **Annualized.** 

#### Fund Performance
The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the Fund. It assumes a $10,000 initial investment at the beginning of the first fiscal year in an appropriate broad-based securities market index for the same period.

![Fund Performance - Growth of 10K](g71349chartimages_1079546.jpg)

---

| | | | |
|:---|:---|:---|:---|
| AVERAGE ANNUAL TOTAL RETURN | 1 Year | 5 Years | Since<br>Inception<sup>1</sup> |
| Green Century MSCI International Index Fund (Individual Investor Class/GCINX) | 17.59% | 5.90% | 7.06% |
| MSCI World ex USA Index<sup>2</sup> | 31.54% | 10.72% | 9.36% |

---

 **<sup>1</sup>** **Inception Date September 30, 2016** 

 **<sup>2</sup>** **The MSCI World EX USA Index is a custom index calculated by MSCI Inc. The index includes large and mid-cap stocks across 22 of 23 Developed Markets countries and excludes the United States** 

**The Fund's past performance is not a good predictor of the Fund's future performance.**

Visit www.greencentury.com/international-index-fund/ for the most recent performance information. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. The investment return and principal value of shares of the Fund fluctuate, so your shares, when sold, may be worth more or less than their original cost.

#### Key Fund Statistics
The following table outlines key fund statistic that you should pay attention to

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;**Fund net assets** | &nbsp;&nbsp;&nbsp;&nbsp;$175 mil. |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total number of portfolio holdings** | &nbsp;&nbsp;&nbsp;&nbsp;181 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Portfolio turnover rate as of the end of the reporting period** | &nbsp;&nbsp;&nbsp;&nbsp;8% |

---

#### Graphical Representation of Holdings
The tables below show the investment make up of the Fund, representing percentage of total net assets of the Fund. The Top Ten Holdings and Country Allocation exclude short-term holdings, if any. The Country Allocation chart represents Common Stocks of the Fund.

**Top Ten Holdings**

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;ASML Holding NV | 6.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;Novo Nordisk A/S, Class B | 3.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;Schneider Electric SE | 2.9% |
| &nbsp;&nbsp;&nbsp;&nbsp;Unilever PLC | 2.8% |
| &nbsp;&nbsp;&nbsp;&nbsp;ABB Ltd. | 2.5% |
| &nbsp;&nbsp;&nbsp;&nbsp;Sumitomo Mitsui Financial Group, Inc. | 2.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;Hitachi Ltd. | 2.3% |
| &nbsp;&nbsp;&nbsp;&nbsp;Tokyo Electron Ltd. | 2.2% |
| &nbsp;&nbsp;&nbsp;&nbsp;AIA Group Ltd. | 2.3% |
| &nbsp;&nbsp;&nbsp;&nbsp;Zurich Insurance Group AG | 2.0% |

---

**Top Ten Country Allocation**

![Graphical Representation - Allocation 1 Chart](g71349chartimages_1079551.jpg)

**Asset Allocation**

![Graphical Representation - Allocation 2 Chart](g71349chartimages_1079556.jpg)

#### Availability of Additional Information
You can find additional information on the Fund's website:

• &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; www.greencentury.com/regulatory-filings/

You can also request this information by contacting us at 1-800-221-5519.

#### Householding
Shareholders who have consented to receive a single annual or semi-annual shareholder report at a shared address may revoke this consent by contacting us at 1-800-221-5519.

![Green Centurty TSR QR Code](g71349images_429.jpg)

For additional information please scan the code for hosted material at *www.greencentury.com* 

GREEN CENTURY FUNDS

Green Century MSCI International Index Fund

Institutional Class/GCIFX

![Green Century TSR Logo Cover 1](g71349images_428.jpg)

#### Semi-Annual Shareholder Report \| January 31, 2026
*For information on the Green Century Funds<sup>®</sup>, call 1-800-93-GREEN. For information on how to open an account and account services, call 1-800-221-5519 8:00 am to 6:00 pm Eastern Time, Monday through Friday. For daily share price information twenty-four hours a day, visit *www.greencentury.com*.*

#### What were the Fund costs for the last year?
*(Based on a hypothetical $10,000 investment)*

The below table explains the costs that you would have paid within the reporting period.

---

| | |
|:---|:---|
| Fund (Class) | Costs of a $10,000 investment |
| Green Century MSCI International Index Fund<br>(Institutional Class/GCIFX) | $520.98%<sup>1</sup> |

---

 **<sup>1</sup>** **Annualized.** 

#### Fund Performance
The following graph compares the initial and subsequent account values at the end of each of the most recently completed 10 fiscal years of the Fund. It assumes a $250,000 initial investment at the beginning of the first fiscal year in an appropriate broad-based securities market index for the same period.

![Fund Performance - Growth of 10K](g71349chartimages_1079510.jpg)

---

| | | | |
|:---|:---|:---|:---|
| AVERAGE ANNUAL TOTAL RETURN | 1 Year | 5 Years | Since<br>Inception<sup>1</sup> |
| Green Century MSCI International Index Fund (Institutional Class/GCIFX) | 17.94% | 6.21% | 7.37% |
| MSCI World ex USA Index<sup>2</sup> | 31.54% | 10.72% | 9.36% |

---

 **<sup>1</sup>** **Inception Date September 30, 2016** 

 **<sup>2</sup>** **The MSCI World EX USA Index is a custom index calculated by MSCI Inc. The index includes large and mid-cap stocks across 22 of 23 Developed Markets countries and excludes the United States** 

**The Fund's past performance is not a good predictor of the Fund's future performance.**

Visit www.greencentury.com/international-index-fund-institutional/ for the most recent performance information. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. The investment return and principal value of shares of the Fund fluctuate, so your shares, when sold, may be worth more or less than their original cost.

#### Key Fund Statistics
The following table outlines key fund statistic that you should pay attention to

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;**Fund net assets** | &nbsp;&nbsp;&nbsp;&nbsp;$175 mil. |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total number of portfolio holdings** | &nbsp;&nbsp;&nbsp;&nbsp;181 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Portfolio turnover rate as of the end of the reporting period** | &nbsp;&nbsp;&nbsp;&nbsp;8% |

---

#### Graphical Representation of Holdings
The tables below show the investment make up of the Fund, representing percentage of total net assets of the Fund. The Top Ten Holdings and Country Allocation exclude short-term holdings, if any. The Country Allocation chart represents Common Stocks of the Fund.

**Top Ten Holdings**

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;ASML Holding NV | 6.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;Novo Nordisk A/S, Class B | 3.6% |
| &nbsp;&nbsp;&nbsp;&nbsp;Schneider Electric SE | 2.9% |
| &nbsp;&nbsp;&nbsp;&nbsp;Unilever PLC | 2.8% |
| &nbsp;&nbsp;&nbsp;&nbsp;ABB Ltd. | 2.5% |
| &nbsp;&nbsp;&nbsp;&nbsp;Sumitomo Mitsui Financial Group, Inc. | 2.4% |
| &nbsp;&nbsp;&nbsp;&nbsp;Hitachi Ltd. | 2.3% |
| &nbsp;&nbsp;&nbsp;&nbsp;Tokyo Electron Ltd. | 2.2% |
| &nbsp;&nbsp;&nbsp;&nbsp;AIA Group Ltd. | 2.3% |
| &nbsp;&nbsp;&nbsp;&nbsp;Zurich Insurance Group AG | 2.0% |

---

**Top Ten Country Allocation**

![Graphical Representation - Allocation 1 Chart](g71349chartimages_1079515.jpg)

**Asset Allocation**

![Graphical Representation - Allocation 2 Chart](g71349chartimages_1079520.jpg)

#### Availability of Additional Information
You can find additional information on the Fund's website:

• &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; www.greencentury.com/regulatory-filings/

You can also request this information by contacting us at 1-800-221-5519.

#### Householding
Shareholders who have consented to receive a single annual or semi-annual shareholder report at a shared address may revoke this consent by contacting us at 1-800-221-5519.

![Green Centurty TSR QR Code](g71349images_429.jpg)

For additional information please scan the code for hosted material at *www.greencentury.com* 

GREEN CENTURY FUNDS

------

(b) Not applicable.

#### Item 2. Code of Ethics.
Not applicable to semi-annual reports.

#### Item 3. Audit Committee Financial Expert.
Not applicable to semi-annual reports.

#### Item 4. Principal Accountant Fees and Services.
Not applicable to semi-annual reports.

#### Item 5. Audit Committee of Listed Registrants.
Not applicable.

#### Item 6. Investments.
(a) Included as part of the report to shareholders filed under Item 7(a) of this Form N-CSR.

(b) Not applicable.

#### Item 7. Financial Statements and Financial Highlights for Open-End Management Investment Companies.
(a) Copy of the most recent financial statements:

------

![LOGO](g71349g83p75.jpg)

### Green Century Balanced Fund

#### (Individual Investor Class: GCBLX)

#### (Institutional Class: GCBUX)

### Green Century Equity Fund

#### (Individual Investor Class: GCEQX)

#### (Institutional Class: GCEUX)

### Green Century MSCI International Index Fund

#### (Individual Investor Class: GCINX)

#### (Institutional Class: GCIFX)

### SEMI-ANNUAL FINANCIALS AND OTHER INFORMATION

### January 31, 2026

------

GREEN CENTURY BALANCED FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited)

---

| | | |
|:---|:---|:---|
|  COMMON STOCKS — 65.7% |  |  |
|  | SHARES | VALUE |
|  Semiconductors & Semiconductor Equipment — 10.7% | Semiconductors & Semiconductor Equipment — 10.7% | Semiconductors & Semiconductor Equipment — 10.7% |
|  Advanced Micro Devices, Inc. (a) | 5030 | $1190752 |
|  Analog Devices, Inc. | 11600 | 3606208 |
|  ASML Holding NV (b) | 3740 | 5322020 |
|  Broadcom, Inc. | 16550 | 5483015 |
|  First Solar, Inc. (a) | 12413 | 2799380 |
|  NVIDIA Corporation | 110201 | 21062717 |
|  NXP Semiconductors NV (b) | 3532 | 798726 |
|  Teradyne, Inc. | 1854 | 446907 |
|  |  | 40709725 |
|  Media & Entertainment — 8.2% |  |  |
|  Alphabet, Inc., Class A | 59485 | 20105930 |
|  Alphabet, Inc., Class C | 156 | 52811 |
|  Comcast Corporation, Class A | 15337 | 456276 |
|  Meta Platforms, Inc., Class A | 7406 | 5306399 |
|  Netflix, Inc. (a) | 31764 | 2651976 |
|  Omnicom Group, Inc. | 4537 | 349530 |
|  Spotify Technology SA (a) | 2832 | 1416991 |
|  Versant Media Group, Inc. (a) | 613 | 19972 |
|  Walt Disney Company (The) | 6174 | 696427 |
|  Warner Music Group Corporation, Class A | 3397 | 101842 |
|  ZoomInfo Technologies, Inc. (a) | 6314 | 50828 |
|  |  | 31208982 |
|  Software & Services — 6.5% |  |  |
|  Cadence Design Systems, Inc. (a) | 4055 | 1201740 |
|  Gartner, Inc. (a) | 252 | 52822 |
|  International Business Machines Corporation | 1301 | 399017 |
|  Kyndryl Holdings, Inc. (a) | 154 | 3542 |
|  Microsoft Corporation | 36107 | 15536481 |
|  Palo Alto Networks, Inc. (a) | 18476 | 3269698 |
|  Salesforce, Inc. | 1609 | 341574 |
|  ServiceNow, Inc. (a) | 24995 | 2924665 |
|  Shopify, Inc., Class A (a) | 6036 | 792104 |
|  Synopsys, Inc. (a) | 114 | 53023 |
|  Twilio, Inc., Class A (a) | 353 | 42522 |
|  |  | 24617188 |
|  Capital Goods — 5.1% |  |  |
|  AGCO Corporation | 1443 | 163651 |
|  AZZ, Inc. | 700 | 87003 |

---

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Capital Goods — (continued) |  |  |  |
|  Carlisle Companies, Inc. | 430 | $| 146583 |
|  Carpenter Technology Corporation | 973 |  | 309249 |
|  CNH Industrial NV (b) | 20606 |  | 221721 |
|  Comfort Systems USA, Inc. | 378 |  | 431714 |
|  Deere & Company | 266 |  | 140448 |
|  Eaton Corporation PLC | 10408 |  | 3657579 |
|  EMCOR Group, Inc. | 543 |  | 391356 |
|  EnerSys | 729 |  | 131359 |
|  Federal Signal Corporation | 1415 |  | 152947 |
|  Ferguson Enterprises, Inc. | 5626 |  | 1420340 |
|  Fortive Corporation | 7140 |  | 377063 |
|  Gates Industrial Corporation PLC (a) | 6015 |  | 138465 |
|  Generac Holdings, Inc. (a) | 1366 |  | 229543 |
|  Hubbell, Inc. | 1038 |  | 506482 |
|  Ingersoll-Rand PLC | 1047 |  | 90136 |
|  Lennox International, Inc. | 113 |  | 55944 |
|  Masco Corporation | 1160 |  | 76664 |
|  Middleby Corporation (The) (a) | 1080 |  | 158944 |
|  MYR Group, Inc. (a) | 10842 |  | 2710934 |
|  Nextpower, Inc., Class A (a) | 584 |  | 68381 |
|  nVent Electric PLC (b) | 3758 |  | 421873 |
|  Otis Worldwide Corporation | 4117 |  | 351674 |
|  Owens Corning | 705 |  | 84487 |
|  Regal Rexnord Corporation | 1546 |  | 249679 |
|  Sensata Technologies Holding PLC | 3392 |  | 117329 |
|  Stanley Black & Decker, Inc. | 2870 |  | 225754 |
|  Timken Company (The) | 1476 |  | 137548 |
|  Toro Company (The) | 1348 |  | 123342 |
|  Trane Technologies PLC | 7776 |  | 3270430 |
|  United Rentals, Inc. | 456 |  | 356619 |
|  Valmont Industries, Inc. | 389 |  | 173323 |
|  W.W. Grainger, Inc. | 29 |  | 31318 |
|  Xylem, Inc. | 15837 |  | 2183447 |
|  |  |  | 19393329 |
|  Technology Hardware & Equipment — 4.9% | Technology Hardware & Equipment — 4.9% | Technology Hardware & Equipment — 4.9% | Technology Hardware & Equipment — 4.9% |
|  Apple, Inc. | 60169 |  | 15612652 |
|  Arista Networks, Inc. (a) | 2969 |  | 420826 |
|  Belden, Inc. | 562 |  | 66041 |
|  Ciena Corporation (a) | 1674 |  | 421530 |
|  Cognex Corporation | 2049 |  | 79378 |
|  Flex Ltd. (a) | 3885 |  | 244910 |
|  Jabil, Inc. | 914 |  | 216792 |

---

------

GREEN CENTURY BALANCED FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Technology Hardware & Equipment — (continued) | Technology Hardware & Equipment — (continued) | Technology Hardware & Equipment — (continued) | Technology Hardware & Equipment — (continued) |
|  Seagate Technology Holdings PLC | 1575 | $| 642112 |
|  Super Micro Computer, Inc. (a) | 8155 |  | 237392 |
|  TE Connectivity PLC (b) | 4 |  | 891 |
|  Western Digital Corporation | 2535 |  | 634333 |
|  |  |  | 18576857 |
|  Banks — 4.5% |  |  |  |
|  Bank of America Corporation | 100000 |  | 5320000 |
|  Citigroup, Inc. | 12955 |  | 1499023 |
|  Comerica, Inc. | 2974 |  | 263705 |
|  East West Bancorp, Inc. | 21171 |  | 2422809 |
|  JPMorgan Chase & Company | 6312 |  | 1930778 |
|  KeyCorp | 5439 |  | 117047 |
|  PNC Financial Services Group, Inc. (The) | 23836 |  | 5322579 |
|  Regions Financial Corporation | 7257 |  | 206824 |
|  |  |  | 17082765 |
|  Pharmaceuticals, Biotechnology & Life Sciences — 4.0% | Pharmaceuticals, Biotechnology & Life Sciences — 4.0% | Pharmaceuticals, Biotechnology & Life Sciences — 4.0% | Pharmaceuticals, Biotechnology & Life Sciences — 4.0% |
|  AbbVie, Inc. | 5435 |  | 1212059 |
|  Agilent Technologies, Inc. | 2522 |  | 337570 |
|  AstraZeneca PLC ADR (b) | 36787 |  | 3412730 |
|  Bristol-Myers Squibb Company | 13350 |  | 734917 |
|  Charles River Laboratories International, Inc. (a) | 467 |  | 98294 |
|  Eli Lilly & Company | 2625 |  | 2722519 |
|  Gilead Sciences, Inc. | 28375 |  | 4027831 |
|  Illumina, Inc. (a) | 1249 |  | 180868 |
|  Johnson & Johnson | 1250 |  | 284062 |
|  Merck & Company, Inc. | 4778 |  | 526870 |
|  Mettler-Toledo International,<br>Inc. (a) | 43 |  | 59049 |
|  Pfizer, Inc. | 32963 |  | 871542 |
|  Thermo Fisher Scientific, Inc. | 174 |  | 100678 |
|  Waters Corporation (a) | 568 |  | 210569 |
|  West Pharmaceutical Services, Inc. | 646 |  | 149304 |
|  Zoetis, Inc. | 1034 |  | 129064 |
|  |  |  | 15057926 |
|  Financial Services — 3.8% |  |  |  |
|  Affiliated Managers Group, Inc. | 505 |  | 158110 |
|  Bank of New York Mellon Corporation (The) | 2830 |  | 339374 |
|  Blackstone Mortgage Trust, Inc., Class A REIT | 3630 |  | 69877 |
|  Bread Financial Holdings, Inc. | 1051 |  | 76240 |

---

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Financial Services — (continued) |  |  |  |
|  Charles Schwab Corporation (The) | 4286 | $| 445401 |
|  Equitable Holdings, Inc. | 5654 |  | 262346 |
|  Fiserv, Inc. (a) | 2827 |  | 180165 |
|  Franklin Resources, Inc. | 5114 |  | 136135 |
|  Goldman Sachs Group, Inc. (The) | 1385 |  | 1295543 |
|  Invesco Ltd. | 10364 |  | 282834 |
|  Jackson Financial, Inc., Class A | 1583 |  | 188250 |
|  Janus Henderson Group PLC (b) | 2878 |  | 138518 |
|  Mastercard, Inc., Class A | 14830 |  | 7990256 |
|  Morgan Stanley | 5140 |  | 939592 |
|  MSCI, Inc. | 368 |  | 224193 |
|  Radian Group, Inc. | 2480 |  | 81592 |
|  SLM Corporation | 3409 |  | 92554 |
|  State Street Corporation | 3884 |  | 508260 |
|  Victory Capital Holdings, Inc., Class A | 1107 |  | 78077 |
|  Virtu Financial, Inc., Class A | 1838 |  | 76295 |
|  Visa, Inc., Class A | 1700 |  | 547111 |
|  Voya Financial, Inc. | 1669 |  | 127945 |
|  |  |  | 14238668 |
|  Consumer Discretionary Distribution & Retail — 3.0% | Consumer Discretionary Distribution & Retail — 3.0% | Consumer Discretionary Distribution & Retail — 3.0% | Consumer Discretionary Distribution & Retail — 3.0% |
|  Abercrombie & Fitch Company, Class A (a) | 1095 |  | 106905 |
|  Bath & Body Works, Inc. | 4800 |  | 104640 |
|  Best Buy Company, Inc. | 3516 |  | 228892 |
|  Etsy, Inc. (a) | 149 |  | 7891 |
|  Home Depot, Inc. (The) | 9892 |  | 3705444 |
|  Kohl's Corporation | 2580 |  | 45073 |
|  LKQ Corporation | 5260 |  | 172791 |
|  Lowe's Companies, Inc. | 68 |  | 18160 |
|  Macy's, Inc. | 6253 |  | 125185 |
|  O'Reilly Automotive, Inc. (a) | 7460 |  | 734138 |
|  Pool Corporation | 532 |  | 135176 |
|  TJX Companies, Inc. (The) | 35295 |  | 5287544 |
|  Tractor Supply Company | 1310 |  | 66653 |
|  Williams-Sonoma, Inc. | 2279 |  | 466397 |
|  |  |  | 11204889 |
|  Consumer Services — 2.1% |  |  |  |
|  Adtalem Global Education, Inc. (a) | 846 |  | 87603 |
|  Boyd Gaming Corporation | 1347 |  | 113875 |
|  Bright Horizons Family Solutions, Inc. (a) | 7800 |  | 722514 |
|  Brinker International, Inc. (a) | 1034 |  | 163083 |
|  Caesars Entertainment, Inc. (a) | 4753 |  | 98387 |

---

------

GREEN CENTURY BALANCED FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Consumer Services — (continued) |  |  |  |
|  Chipotle Mexican Grill, Inc. (a) | 12261 | $| 476585 |
|  Expedia Group, Inc. | 2047 |  | 542128 |
|  Grand Canyon Education, Inc. (a) | 539 |  | 93700 |
|  Hilton Worldwide Holdings, Inc. | 1692 |  | 505079 |
|  Las Vegas Sands Corporation | 2451 |  | 129241 |
|  Marriott International, Inc., Class A | 9124 |  | 2876797 |
|  MGM Resorts International (a) | 4776 |  | 160187 |
|  Starbucks Corporation | 12478 |  | 1147352 |
|  Stride, Inc. (a) | 996 |  | 84262 |
|  Travel + Leisure Company | 1498 |  | 104171 |
|  Wyndham Hotels & Resorts, Inc. | 1760 |  | 128110 |
|  Yum! Brands, Inc. | 4674 |  | 726807 |
|  |  |  | 8159881 |
|  Consumer Staples Distribution & Retail — 2.0% | Consumer Staples Distribution & Retail — 2.0% | Consumer Staples Distribution & Retail — 2.0% | Consumer Staples Distribution & Retail — 2.0% |
|  Costco Wholesale Corporation | 6409 |  | 6026062 |
|  Dollar General Corporation | 2586 |  | 370910 |
|  Dollar Tree, Inc. (a) | 950 |  | 111710 |
|  Target Corporation | 3749 |  | 395407 |
|  Walmart, Inc. | 6691 |  | 797166 |
|  |  |  | 7701255 |
|  Healthcare Equipment & Services — 1.8% | Healthcare Equipment & Services — 1.8% | Healthcare Equipment & Services — 1.8% | Healthcare Equipment & Services — 1.8% |
|  Becton, Dickinson & Company | 1352 |  | 275105 |
|  Centene Corporation (a) | 4394 |  | 190348 |
|  CVS Health Corp. | 6091 |  | 453901 |
|  Elevance Health, Inc. | 4437 |  | 1534048 |
|  Envista Holdings Corporation (a) | 3829 |  | 89867 |
|  GE HealthCare Technologies, Inc. | 202 |  | 15952 |
|  Humana, Inc. | 826 |  | 161235 |
|  Insulet Corporation (a) | 519 |  | 132766 |
|  Medtronic PLC | 6982 |  | 718867 |
|  Stryker Corporation | 5859 |  | 2165252 |
|  UnitedHealth Group, Inc. | 4030 |  | 1156328 |
|  Zimmer Biomet Holdings, Inc. | 1518 |  | 132172 |
|  |  |  | 7025841 |
|  Insurance — 1.5% |  |  |  |
|  Aflac, Inc. | 3696 |  | 410071 |
|  Brighthouse Financial, Inc. (a) | 1317 |  | 84367 |
|  CNO Financial Group, Inc. | 2220 |  | 93351 |
|  Genworth Financial, Inc. (a) | 9196 |  | 76695 |
|  Globe Life, Inc. | 1404 |  | 196869 |

---

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Insurance — (continued) |  |  |  |
|  Lincoln National Corporation | 3936 | $| 163777 |
|  Progressive Corporation (The) | 12108 |  | 2518464 |
|  Prudential Financial, Inc. | 2102 |  | 233553 |
|  Travelers Companies, Inc. (The) | 6383 |  | 1816027 |
|  Unum Group | 3585 |  | 272353 |
|  |  |  | 5865527 |
|  Household & Personal Products — 1.3% | Household & Personal Products — 1.3% | Household & Personal Products — 1.3% | Household & Personal Products — 1.3% |
|  Clorox Company (The) | 878 |  | 99029 |
|  Kimberly-Clark Corporation | 2924 |  | 292371 |
|  Procter & Gamble Company (The) | 13683 |  | 2076669 |
|  Unilever PLC ADR (b) | 35427 |  | 2421790 |
|  |  |  | 4889859 |
|  Utilities — 1.3% | Utilities — 1.3% | Utilities — 1.3% | Utilities — 1.3% |
|  American Water Works Company,<br>Inc. | 15570 |  | 2010554 |
|  Ormat Technologies, Inc. | 22584 |  | 2821645 |
|  |  |  | 4832199 |
|  Equity Real Estate Investment Trusts (REITs) — 1.0% | Equity Real Estate Investment Trusts (REITs) — 1.0% | Equity Real Estate Investment Trusts (REITs) — 1.0% | Equity Real Estate Investment Trusts (REITs) — 1.0% |
|  Brixmor Property Group, Inc. REIT | 5960 |  | 159668 |
|  EPR Properties REIT | 1773 |  | 96168 |
|  Equinix, Inc. REIT | 485 |  | 398151 |
|  Healthcare Realty Trust, Inc. REIT | 8188 |  | 137476 |
|  Healthpeak Properties, Inc. | 8337 |  | 143730 |
|  Kilroy Realty Corporation REIT | 2535 |  | 87407 |
|  Kimco Realty Corporation REIT | 10595 |  | 223343 |
|  LXP Industrial Trust REIT | 1362 |  | 67487 |
|  Prologis, Inc. REIT | 10930 |  | 1427021 |
|  Rexford Industrial Realty, Inc. REIT | 3856 |  | 156284 |
|  Simon Property Group, Inc. REIT | 1075 |  | 205658 |
|  STAG Industrial, Inc. REIT | 1720 |  | 64517 |
|  UDR, Inc. REIT | 2477 |  | 92021 |
|  VICI Properties, Inc. REIT | 8650 |  | 242892 |
|  Vornado Realty Trust | 3757 |  | 119773 |
|  |  |  | 3621596 |
|  Real Estate Management & Development — 0.9% | Real Estate Management & Development — 0.9% | Real Estate Management & Development — 0.9% | Real Estate Management & Development — 0.9% |
|  Jones Lang LaSalle, Inc. (a) | 9787 |  | 3502865 |
|  Commercial & Professional Services — 0.7% | Commercial & Professional Services — 0.7% | Commercial & Professional Services — 0.7% | Commercial & Professional Services — 0.7% |
|  Genpact Ltd. | 3734 |  | 164670 |
|  Jacobs Solutions, Inc. | 2333 |  | 315562 |

---

------

GREEN CENTURY BALANCED FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Commercial & Professional Services — (continued) | Commercial & Professional Services — (continued) | Commercial & Professional Services — (continued) | Commercial & Professional Services — (continued) |
|  Magnum Ice Cream Company NV<br>(The) (a)(b) | 7971 | $| 141485 |
|  Robert Half, Inc. | 2292 |  | 79326 |
|  UL Solutions, Inc. | 1370 |  | 96215 |
|  Verisk Analytics, Inc. | 7781 |  | 1692056 |
|  |  |  | 2489314 |
|  Materials — 0.6% | Materials — 0.6% | Materials — 0.6% | Materials — 0.6% |
|  AptarGroup, Inc. | 1015 |  | 126824 |
|  Avery Dennison Corporation | 105 |  | 19479 |
|  Ball Corporation | 6239 |  | 354812 |
|  Cabot Corporation | 1225 |  | 88433 |
|  Crown Holdings, Inc. | 2250 |  | 235530 |
|  Linde PLC | 1692 |  | 773193 |
|  Packaging Corporation of America | 462 |  | 102818 |
|  Sealed Air Corporation | 2767 |  | 115882 |
|  Smurfit WestRock PLC (b) | 10071 |  | 419256 |
|  Sonoco Products Company | 2179 |  | 104592 |
|  |  |  | 2340819 |
|  Food & Beverage — 0.6% | Food & Beverage — 0.6% | Food & Beverage — 0.6% | Food & Beverage — 0.6% |
|  Archer-Daniels-Midland<br>Company | 4708 |  | 316896 |
|  Darling Ingredients, Inc. (a) | 3684 |  | 168211 |
|  JM Smucker Company (The) | 2106 |  | 220835 |
|  McCormick & Company, Inc. | 23732 |  | 1467350 |
|  |  |  | 2173292 |
|  Consumer Durables & Apparel — 0.5% | Consumer Durables & Apparel — 0.5% | Consumer Durables & Apparel — 0.5% | Consumer Durables & Apparel — 0.5% |
|  Installed Building Products, Inc. | 527 |  | 151850 |
|  Lululemon Athletica, Inc. (a) | 855 |  | 149198 |
|  Mattel, Inc. (a) | 7237 |  | 151181 |
|  Mohawk Industries, Inc. (a) | 903 |  | 106897 |
|  Ralph Lauren Corporation | 903 |  | 319129 |
|  Somnigroup International, Inc. | 4427 |  | 388912 |
|  TopBuild Corporation (a) | 544 |  | 254619 |
|  VF Corporation | 6997 |  | 137071 |
|  Whirlpool Corporation | 767 |  | 61353 |
|  YETI Holdings, Inc. (a) | 1792 |  | 81912 |
|  |  |  | 1802122 |
|  Automobiles & Components — 0.4% | Automobiles & Components — 0.4% | Automobiles & Components — 0.4% | Automobiles & Components — 0.4% |
|  Aptiv PLC (a) | 4975 |  | 376856 |
|  Autoliv, Inc. (b) | 1628 |  | 197379 |
|  BorgWarner, Inc. | 4981 |  | 236149 |

---

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Automobiles & Components — (continued) | Automobiles & Components — (continued) | Automobiles & Components — (continued) | Automobiles & Components — (continued) |
|  Dana, Inc. | 2690 | $| 77741 |
|  Gentex Corporation | 4724 |  | 108699 |
|  Lear Corporation | 1207 |  | 141328 |
|  Patrick Industries, Inc. | 767 |  | 96772 |
|  Thor Industries, Inc. | 1226 |  | 137153 |
|  Visteon Corporation | 628 |  | 57060 |
|  |  |  | 1429137 |
|  Telecommunication Services — 0.3% | Telecommunication Services — 0.3% | Telecommunication Services — 0.3% | Telecommunication Services — 0.3% |
|  Verizon Communications, Inc. | 28055 |  | 1249009 |
|  Transportation — 0.0% | Transportation — 0.0% | Transportation — 0.0% | Transportation — 0.0% |
|  Matson, Inc. | 608 |  | 97462 |
|  Total Common Stocks<br>(Cost $116,444,967) |  |  | 249270507 |
|  | PRINCIPAL<br>AMOUNT |  |  |
|  BONDS & NOTES — 33.8% |  |  |  |
|  Green and Sustainability Bonds — 23.1% | Green and Sustainability Bonds — 23.1% | Green and Sustainability Bonds — 23.1% | Green and Sustainability Bonds — 23.1% |
|  Alphabet, Inc.<br>1.10%, due 8/15/30 (c) | $5000000 |  | 4412875 |
|  Asian Development Bank<br>3.125%, due 9/26/28 (b) | 4000000 |  | 3952744 |
|  AvalonBay Communities, Inc.<br>2.05%, due 1/15/32 (c) | 4000000 |  | 3522156 |
|  Boston Properties LP<br>4.50%, due 12/1/28 (c) | 4000000 |  | 4028908 |
|  Bridge Housing Corporation<br>3.25%, due 7/15/30 (c) | 4500000 |  | 4247334 |
|  Century Housing Corporation<br>4.60%, due 8/15/30 | 4000000 |  | 4008008 |
|  European Investment Bank<br>2.125%, due 4/13/26 (b) | 500000 |  | 498414 |
|  European Investment Bank<br>3.75%, due 2/14/33 (b) | 5000000 |  | 4910705 |
|  Export Development Canada<br>4.75%, due 6/5/34 | 5000000 |  | 5213860 |
|  International Bank for Reconstruction & Development<br>4.00%, due 7/25/30 (b) | 5000000 |  | 5043020 |
|  International Finance Corporation<br>2.125%, due 4/7/26 (b) | 2885000 |  | 2876593 |

---

------

GREEN CENTURY BALANCED FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | PRINCIPAL<br>AMOUNT | PRINCIPAL<br>AMOUNT | VALUE | VALUE |
|  Green and Sustainability Bonds — (continued) | Green and Sustainability Bonds — (continued) | Green and Sustainability Bonds — (continued) | Green and Sustainability Bonds — (continued) | Green and Sustainability Bonds — (continued) |
|  Johnson Controls International plc / Tyco Fire & Security Finance SCA<br>1.75%, due 9/15/30 (b)(c) | $| 3000000 | $| 2682030 |
|  Kreditanstalt fuer Wiederaufbau<br>4.375%, due 2/28/34 (b) |  | 4000000 |  | 4069172 |
|  Mastercard, Inc.<br>1.90%, due 3/15/31 (c) |  | 5000000 |  | 4502250 |
|  Nederlandse Waterschapsbank NV<br>2.375%, due 3/24/26 (b)(d) |  | 3500000 |  | 3493024 |
|  New Jersey Infrastructure Bank<br>3.00%, due 9/1/31 |  | 2500000 |  | 2366023 |
|  NXP BV / NXP Funding LLC / NXP USA, Inc.<br>5.00%, due 1/15/33 (b)(c) |  | 3500000 |  | 3548027 |
|  Prologis LP<br>1.25%, due 10/15/30 (c) |  | 4500000 |  | 3943260 |
|  Public Finance Authority<br>5.292%, due 7/1/29 |  | 3000000 |  | 3034671 |
|  Salesforce, Inc.<br>1.50%, due 7/15/28 (c) |  | 4500000 |  | 4274995 |
|  San Francisco Bay Area Rapid Transit District<br>2.622%, due 8/1/29 |  | 2000000 |  | 1921536 |
|  Toyota Motor Credit Corporation<br>2.15%, due 2/13/30 |  | 450000 |  | 417715 |
|  United States International Development Finance Corporation<br>2.58%, due 7/15/38 |  | 2382589 |  | 2091137 |
|  Verizon Communications, Inc.<br>3.875%, due 2/8/29 (c) |  | 3000000 |  | 2991129 |
|  Visa, Inc.<br>0.75%, due 8/15/27 (c) |  | 3500000 |  | 3356220 |
|  Xylem, Inc.<br>2.25%, due 1/30/31 (c) |  | 2500000 |  | 2265773 |
|  |  |  |  | 87671579 |
|  Banks — 2.9% | Banks — 2.9% | Banks — 2.9% | Banks — 2.9% | Banks — 2.9% |
|  Banco Santander SA<br>5.127%, due 11/6/35 (b) |  | 560000 |  | 559696 |
|  Bank of America Corporation<br>6.204% (SOFR+199 basis points), due 11/10/28 (c) |  | 870000 |  | 903064 |

---

---

| | | |
|:---|:---|:---|
|  | PRINCIPAL<br>AMOUNT | VALUE |
|  Banks — (continued) | Banks — (continued) | Banks — (continued) |
|  Bank of America Corporation<br>3.419% (3-Month Term SOFR+130.161 basis points), due 12/20/28 (c) | $780000 | $771755 |
|  Bank of America Corporation<br>5.518% (SOFR+173.8 basis points), due 10/25/35 (c) | 410000 | 418958 |
|  Bank of America Corporation<br>5.744% (SOFR+169.7 basis points), due 2/12/36 (c) | 660000 | 683478 |
|  Barclays PLC<br>5.785% (SOFR+159 basis points), due 2/25/36 (b)(c) | 730000 | 761881 |
|  Canadian Imperial Bank of Commerce<br>4.243% (SOFR Index+60 basis points), due 9/8/28 (c) | 180000 | 180693 |
|  Citigroup, Inc.<br>6.174% (SOFR+266.1 basis points), due 5/25/34 (c) | 1330000 | 1410019 |
|  Citigroup, Inc.<br>6.02% (SOFR+183 basis points), due 1/24/36 (c) | 750000 | 782829 |
|  Deutsche Bank AG/New York NY<br>4.875% (USD ICE SWAP 11:00AM NY 5+255.3 basis points), due 12/1/32 (b)(c) | 380000 | 382168 |
|  M&T Bank Corporation<br>5.385% (SOFR+161 basis points), due 1/16/36 (c) | 70000 | 71069 |
|  Mitsubishi UFJ Financial Group, Inc.<br>5.017% (USD 1 Year Tsy+195 basis points), due 7/20/28 (b)(c) | 180000 | 182733 |
|  Mitsubishi UFJ Financial Group, Inc.<br>5.354% (USD 1 Year Tsy+190 basis points), due 9/13/28 (b)(c) | 480000 | 490656 |
|  Mizuho Financial Group, Inc.<br>5.414% (USD 1 Year Tsy+205 basis points), due 9/13/28 (b)(c) | 410000 | 419664 |

---

------

GREEN CENTURY BALANCED FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | PRINCIPAL<br>AMOUNT | PRINCIPAL<br>AMOUNT | VALUE | VALUE |
|  Banks — (continued) | Banks — (continued) | Banks — (continued) | Banks — (continued) | Banks — (continued) |
|  National Australia Bank Ltd./New York<br>4.50%, due 10/26/27 (b) | $| 70000 | $| 70897 |
|  NatWest Group PLC<br>5.516% (USD 1 Year Tsy+227 basis points), due 9/30/28 (b)(c) |  | 240000 |  | 245862 |
|  PNC Financial Services Group, Inc. (The)<br>5.373% (SOFR+141.7 basis points), due 7/21/36 (c) |  | 630000 |  | 645667 |
|  Royal Bank of Canada<br>3.995% (SOFR+70 basis points), due 11/3/28 (c) |  | 540000 |  | 540465 |
|  Sumitomo Mitsui Financial Group, Inc.<br>5.52%, due 1/13/28 (b) |  | 620000 |  | 638871 |
|  Truist Financial Corporation<br>4.964% (SOFR+139.5 basis points), due 10/23/36 (c) |  | 420000 |  | 414114 |
|  Westpac Banking Corporation<br>5.618% (USD 1 Year Tsy+120 basis points), due 11/20/35 (b)(c) |  | 260000 |  | 268235 |
|  |  |  |  | 10842774 |
|  Community Development Financial Institutions — 2.4% | Community Development Financial Institutions — 2.4% | Community Development Financial Institutions — 2.4% | Community Development Financial Institutions — 2.4% | Community Development Financial Institutions — 2.4% |
|  Capital Impact Partners<br>5.50%, due 3/15/27 |  | 3750000 |  | 3768188 |
|  Local Initiatives Support Corporation<br>3.782%, due 3/1/27 (c) |  | 2000000 |  | 1993118 |
|  National Community Renaissance of California<br>3.27%, due 12/1/32 (c) |  | 4000000 |  | 3475668 |
|  |  |  |  | 9236974 |
|  Financial Services — 1.8% | Financial Services — 1.8% | Financial Services — 1.8% | Financial Services — 1.8% | Financial Services — 1.8% |
|  Ares Capital Corporation<br>3.20%, due 11/15/31 (c) |  | 50000 |  | 44372 |
|  Bank of New York Mellon Corporation (The)<br>4.441% (SOFR+68 basis points), due 6/9/28 (c) |  | 470000 |  | 473647 |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | PRINCIPAL<br>AMOUNT | PRINCIPAL<br>AMOUNT | VALUE | VALUE |
|  Financial Services — (continued) | Financial Services — (continued) | Financial Services — (continued) | Financial Services — (continued) | Financial Services — (continued) |
|  BlackRock Funding, Inc.<br>4.60%, due 7/26/27 (c) | $| 70000 | $| 70911 |
|  Blackstone Private Credit Fund<br>5.60%, due 11/22/29 (c) |  | 1000000 |  | 1006477 |
|  Capital One Financial Corporation<br>6.183% (SOFR+203.6 basis points), due 1/30/36 (c) |  | 70000 |  | 72558 |
|  Capital One Financial Corporation<br>5.197% (SOFR+163 basis points), due 9/11/36 (c) |  | 120000 |  | 118342 |
|  Morgan Stanley<br>5.297% (SOFR+262 basis points), due 4/20/37 (c) |  | 390000 |  | 396655 |
|  Morgan Stanley<br>5.948% (USD 5 Year Tsy+243 basis points), due 1/19/38 (c) |  | 2000000 |  | 2093564 |
|  Reinvestment Fund, Inc. (The)<br>3.78%, due 2/15/26 |  | 1400000 |  | 1399143 |
|  S&P Global, Inc.<br>4.80%, due 12/4/35 (c)(d) |  | 1000000 |  | 992362 |
|  |  |  |  | 6668031 |
|  Capital Goods — 1.1% | Capital Goods — 1.1% | Capital Goods — 1.1% | Capital Goods — 1.1% | Capital Goods — 1.1% |
|  John Deere Capital Corporation<br>4.75%, due 1/20/28 |  | 530000 |  | 541125 |
|  Trane Technologies Financing Ltd.<br>3.80%, due 3/21/29 (b)(c) |  | 3500000 |  | 3487928 |
|  |  |  |  | 4029053 |
|  Pharmaceuticals, Biotechnology & Life Sciences — 0.4% | Pharmaceuticals, Biotechnology & Life Sciences — 0.4% | Pharmaceuticals, Biotechnology & Life Sciences — 0.4% | Pharmaceuticals, Biotechnology & Life Sciences — 0.4% | Pharmaceuticals, Biotechnology & Life Sciences — 0.4% |
|  AbbVie, Inc.<br>4.65%, due 3/15/28 (c) |  | 430000 |  | 437318 |
|  Amgen, Inc.<br>5.15%, due 3/2/28 (c) |  | 360000 |  | 368596 |
|  Merck & Company, Inc.<br>1.70%, due 6/10/27 (c) |  | 230000 |  | 224464 |
|  Pfizer, Inc.<br>4.875%, due 11/15/35 (c) |  | 460000 |  | 461009 |
|  Thermo Fisher Scientific, Inc.<br>4.80%, due 11/21/27 (c) |  | 100000 |  | 101790 |
|  |  |  |  | 1593177 |

---

------

GREEN CENTURY BALANCED FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

---

| | | |
|:---|:---|:---|
|  | PRINCIPAL<br>AMOUNT | VALUE |
|  Semiconductors & Semiconductor Equipment — 0.3% | Semiconductors & Semiconductor Equipment — 0.3% | Semiconductors & Semiconductor Equipment — 0.3% |
|  Broadcom, Inc.<br>3.137%, due 11/15/35 (c)(d) | $1010000 | $870101 |
|  Intel Corporation<br>5.20%, due 2/10/33 (c) | 280000 | 285934 |
|  QUALCOMM, Inc.<br>5.00%, due 5/20/35 (c) | 70000 | 70888 |
|  Texas Instruments, Inc.<br>4.60%, due 2/15/28 (c) | 40000 | 40650 |
|  |  | 1267573 |
|  Software & Services — 0.3% | Software & Services — 0.3% | Software & Services — 0.3% |
|  International Business Machines Corporation<br>4.50%, due 2/6/28 (c) | 290000 | 293721 |
|  Microsoft Corporation<br>3.30%, due 2/6/27 (c) | 50000 | 49849 |
|  Oracle Corporation<br>5.20%, due 9/26/35 (c) | 820000 | 781334 |
|  Roper Technologies, Inc.<br>5.10%, due 9/15/35 (c) | 60000 | 59974 |
|  |  | 1184878 |
|  U.S. Government Agencies — 0.3% | U.S. Government Agencies — 0.3% | U.S. Government Agencies — 0.3% |
|  United States Treasury Note<br>4.25%, due 8/15/35 | 1000000 | 1002266 |
|  Food & Beverage — 0.3% | Food & Beverage — 0.3% | Food & Beverage — 0.3% |
|  Keurig Dr Pepper, Inc.<br>5.15%, due 5/15/35 (c) | 1000000 | 999256 |
|  Municipal — 0.2% | Municipal — 0.2% | Municipal — 0.2% |
|  Commonwealth of Massachusetts<br>4.11%, due 7/15/31 (c) | 865420 | 866926 |
|  Healthcare Equipment & Services — 0.2% | Healthcare Equipment & Services — 0.2% | Healthcare Equipment & Services — 0.2% |
|  Cigna Group (The)<br>3.05%, due 10/15/27 (c) | 210000 | 207330 |
|  CVS Health Corporation<br>5.45%, due 9/15/35 (c) | 490000 | 499116 |
|  |  | 706446 |
|  Media & Entertainment — 0.2% | Media & Entertainment — 0.2% | Media & Entertainment — 0.2% |
|  Comcast Corporation<br>3.15%, due 2/15/28 (c) | 580000 | 571719 |
|  Walt Disney Company (The)<br>2.20%, due 1/13/28 | 100000 | 97368 |
|  |  | 669087 |

---

---

| | | |
|:---|:---|:---|
|  | PRINCIPAL<br>AMOUNT | VALUE |
|  Consumer Discretionary Distribution & Retail — 0.2% | Consumer Discretionary Distribution & Retail — 0.2% | Consumer Discretionary Distribution & Retail — 0.2% |
|  Home Depot, Inc. (The)<br>4.65%, due 9/15/35 (c) | $340000 | $336616 |
|  Lowe's Companies, Inc.<br>4.85%, due 10/15/35 (c) | 300000 | 297307 |
|  |  | 633923 |
|  Insurance — 0.1% | Insurance — 0.1% | Insurance — 0.1% |
|  Aon Corporation / Aon Global Holdings PLC<br>2.85%, due 5/28/27 (b)(c) | 90000 | 88850 |
|  Marsh & McLennan Companies, Inc.<br>4.55%, due 11/8/27 (c) | 90000 | 91031 |
|  Willis North America, Inc.<br>4.55%, due 3/15/31 (c) | 330000 | 330022 |
|  |  | 509903 |
|  Equity Real Estate Investment Trusts (REITs) — 0.0% | Equity Real Estate Investment Trusts (REITs) — 0.0% | Equity Real Estate Investment Trusts (REITs) — 0.0% |
|  Simon Property Group LP<br>3.375%, due 12/1/27 (c) | 110000 | 109189 |
|  Technology Hardware & Equipment — 0.0% | Technology Hardware & Equipment — 0.0% | Technology Hardware & Equipment — 0.0% |
|  Hewlett Packard Enterprise Company<br>5.00%, due 10/15/34 (c) | 100000 | 98550 |
|  Commercial & Professional Services — 0.0% | Commercial & Professional Services — 0.0% | Commercial & Professional Services — 0.0% |
|  Republic Services, Inc.<br>3.95%, due 5/15/28 (c) | 60000 | 60157 |
|  Total Bonds & Notes<br>(Cost $130,146,563) |  | 128149742 |
|  SHORT-TERM INVESTMENTS — 0.6% | SHORT-TERM INVESTMENTS — 0.6% |  |
|  UMB Money Market Fiduciary Account, 0.01% (e)<br>(Cost $2,276,908) |  | 2276908 |
|  Total Short-term Investments<br>(Cost $2,276,908) |  | 2276908 |
| TOTAL INVESTMENTS (f) — 100.1% | TOTAL INVESTMENTS (f) — 100.1% | TOTAL INVESTMENTS (f) — 100.1% |
| &nbsp;&nbsp;&nbsp;&nbsp; (Cost $248,868,438) |  | 379697157 |
|  Liabilites Less Other Assets — (0.1) % | Liabilites Less Other Assets — (0.1) % | (227150) |
| NET ASSETS — 100.0% |  | $379470007 |

---

PLC – Public Limited Company

------

GREEN CENTURY BALANCED FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) concluded

ADR – American Depository Receipt

REIT – Real Estate Investment Trusts

LP – Limited Partnership

LLC – Limited Liability Company

(a) Non-income producing security.

(b) Securities whose value are determined or significantly influenced by trading in markets other than the United States or Canada.

(c) Callable

(d) Security exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration to qualified institutional buyers. The total value of these securities is $5,355,487.

(e) The rate quoted is the annualized seven-day yield of the fund at the period end.

(f) The cost of investments for federal income tax purposes is $249,237,190 resulting in gross unrealized appreciation and depreciation of $135,127,403 and $4,667,436 respectively, or net unrealized appreciation of $130,459,967.

See Notes to Financial Statements

------

GREEN CENTURY EQUITY FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited)

---

| | | |
|:---|:---|:---|
|  COMMON STOCKS — 99.6% |  |  |
|  | SHARES | VALUE |
|  Semiconductors & Semiconductor Equipment — 21.5% | Semiconductors & Semiconductor Equipment — 21.5% | Semiconductors & Semiconductor Equipment — 21.5% |
|  Advanced Micro Devices, Inc. (a) | 42798 | $10131571 |
|  Analog Devices, Inc. | 13059 | 4059782 |
|  Applied Materials, Inc. | 21069 | 6790960 |
|  Intel Corporation (a) | 119489 | 5552654 |
|  Lam Research Corporation | 33340 | 7783556 |
|  Microchip Technology, Inc. | 14641 | 1111545 |
|  NVIDIA Corporation | 634710 | 121312122 |
|  NXP Semiconductors NV (b) | 6941 | 1569638 |
|  ON Semiconductor<br>Corporation (a) | 11743 | 703288 |
|  Skyworks Solutions, Inc. | 4499 | 250864 |
|  Texas Instruments, Inc. | 24095 | 5193677 |
|  |  | 164459657 |
|  Software & Services — 15.4% | Software & Services — 15.4% | Software & Services — 15.4% |
|  Accenture PLC, Class A (b) | 16262 | 4287314 |
|  Adobe, Inc. (a) | 11097 | 3254195 |
|  Akamai Technologies, Inc. (a) | 3648 | 354403 |
|  Atlassian Corporation, Class A (a)(b) | 4495 | 531219 |
|  Autodesk, Inc. (a) | 5679 | 1436049 |
|  Automatic Data Processing, Inc. | 10614 | 2619747 |
|  Cadence Design Systems, Inc. (a) | 7235 | 2144165 |
|  Cognizant Technology Solutions Corporation, Class A | 12946 | 1062349 |
|  Docusign, Inc. (a) | 5949 | 312560 |
|  Dynatrace, Inc. (a) | 9355 | 356332 |
|  Fidelity National Information Services, Inc. | 13218 | 730294 |
|  Fortinet, Inc. (a) | 17477 | 1420181 |
|  Gartner, Inc. (a) | 1956 | 409997 |
|  Gen Digital, Inc. | 15793 | 378874 |
|  HubSpot, Inc. (a) | 1347 | 377160 |
|  Intuit, Inc. | 7285 | 3634632 |
|  Microsoft Corporation | 184364 | 79329986 |
|  Nutanix, Inc., Class A (a) | 7414 | 291593 |
|  Okta, Inc., Class A (a) | 4344 | 366981 |
|  Paycom Software, Inc. | 1525 | 205494 |
|  PayPal Holdings, Inc. | 23765 | 1252178 |
|  PTC, Inc. (a) | 3392 | 529593 |
|  Salesforce, Inc. | 25077 | 5323596 |
|  ServiceNow, Inc. (a) | 27560 | 3224796 |
|  Synopsys, Inc. (a) | 4945 | 2299994 |
|  Teradata Corporation (a) | 2062 | 58808 |

---

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Software & Services — (continued) | Software & Services — (continued) | Software & Services — (continued) | Software & Services — (continued) |
|  Western Union Company (The) | 6255 | $| 58609 |
|  Workday, Inc., Class A (a) | 5689 |  | 999159 |
|  Zscaler, Inc. (a) | 2878 |  | 575629 |
|  |  |  | 117825887 |
|  Media & Entertainment — 13.6% | Media & Entertainment — 13.6% | Media & Entertainment — 13.6% | Media & Entertainment — 13.6% |
|  Alphabet, Inc., Class A | 152623 |  | 51586574 |
|  Alphabet, Inc., Class C | 127050 |  | 43010236 |
|  Electronic Arts, Inc. | 6413 |  | 1307739 |
|  John Wiley & Sons, Inc., Class A | 1926 |  | 60149 |
|  New York Times Company (The), Class A | 4585 |  | 336126 |
|  Omnicom Group, Inc. | 8863 |  | 682806 |
|  Scholastic Corporation | 1381 |  | 48294 |
|  Walt Disney Company (The) | 47552 |  | 5363866 |
|  Warner Bros Discovery, Inc. (a) | 62073 |  | 1709490 |
|  ZoomInfo Technologies, Inc. (a) | 10814 |  | 87053 |
|  |  |  | 104192333 |
|  Financial Services — 9.1% | Financial Services — 9.1% | Financial Services — 9.1% | Financial Services — 9.1% |
|  Ally Financial, Inc. | 7359 |  | 311138 |
|  American Express Company | 14723 |  | 5184999 |
|  Ameriprise Financial, Inc. | 2553 |  | 1345916 |
|  Bank of New York Mellon Corporation (The) | 18897 |  | 2266128 |
|  BlackRock, Inc. | 3850 |  | 4307919 |
|  Cboe Global Markets, Inc. | 2700 |  | 715662 |
|  Charles Schwab Corporation (The) | 45016 |  | 4678063 |
|  CME Group, Inc. | 9494 |  | 2744336 |
|  Equitable Holdings, Inc. | 5842 |  | 271069 |
|  FactSet Research Systems, Inc. | 907 |  | 230704 |
|  Franklin Resources, Inc. | 6877 |  | 183066 |
|  Intercontinental Exchange, Inc. | 14907 |  | 2590538 |
|  Invesco Ltd. | 9393 |  | 256335 |
|  Mastercard, Inc., Class A | 22454 |  | 12097991 |
|  Moody's Corporation | 4236 |  | 2183912 |
|  Morgan Stanley | 31657 |  | 5786900 |
|  Nasdaq, Inc. | 11764 |  | 1139814 |
|  Northern Trust Corporation | 5169 |  | 772404 |
|  Raymond James Financial, Inc. | 5012 |  | 831290 |
|  S&P Global, Inc. | 8190 |  | 4322600 |
|  State Street Corporation | 7880 |  | 1031177 |
|  Synchrony Financial | 10303 |  | 748307 |
| T. Rowe Price Group, Inc. | 5614 |  | 593287 |
|  Visa, Inc., Class A | 44721 |  | 14392559 |
|  Voya Financial, Inc. | 2004 |  | 153627 |
|  |  |  | 69139741 |

---

------

GREEN CENTURY EQUITY FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

---

| | | |
|:---|:---|:---|
|  | SHARES | VALUE |
|  Pharmaceuticals, Biotechnology & Life Sciences — 5.7% | Pharmaceuticals, Biotechnology & Life Sciences — 5.7% | Pharmaceuticals, Biotechnology & Life Sciences — 5.7% |
|  AbbVie, Inc. | 46196 | $10302170 |
|  Agilent Technologies, Inc. | 7570 | 1013245 |
|  Amgen, Inc. | 14310 | 4892303 |
|  Biogen, Inc. (a) | 3874 | 696894 |
|  BioMarin Pharmaceutical, Inc. (a) | 4673 | 264211 |
|  Bio-Techne Corporation | 3718 | 238287 |
|  Bristol-Myers Squibb Company | 53655 | 2953708 |
|  Danaher Corporation | 16902 | 3699679 |
|  Gilead Sciences, Inc. | 32294 | 4584133 |
|  Illumina, Inc. (a) | 4054 | 587060 |
|  IQVIA Holdings, Inc. (a) | 4505 | 1036826 |
|  Jazz Pharmaceuticals PLC (a)(b) | 1356 | 223048 |
|  Merck & Company, Inc. | 65373 | 7208681 |
|  Mettler-Toledo International,<br>Inc. (a) | 552 | 758028 |
|  Revvity, Inc. | 2558 | 278310 |
|  Vertex Pharmaceuticals, Inc. (a) | 6718 | 3156788 |
|  Waters Corporation (a) | 1560 | 578323 |
|  Zoetis, Inc. | 11589 | 1446539 |
|  |  | 43918233 |
|  Renewable Energy & Energy Efficiency — 4.6% | Renewable Energy & Energy Efficiency — 4.6% | Renewable Energy & Energy Efficiency — 4.6% |
|  Acuity, Inc. | 839 | 259452 |
|  First Solar, Inc. (a) | 2820 | 635967 |
|  Itron, Inc. (a) | 1221 | 120977 |
|  Johnson Controls International,<br>PLC (b) | 16978 | 2024796 |
|  Ormat Technologies, Inc. | 1521 | 190034 |
|  Tesla, Inc. (a) | 74113 | 31898976 |
|  |  | 35130202 |
|  Capital Goods — 4.1% | Capital Goods — 4.1% | Capital Goods — 4.1% |
|  3M Company | 14226 | 2178854 |
|  A.O. Smith Corporation | 2772 | 203714 |
|  AGCO Corporation | 1523 | 172723 |
|  Air Lease Corporation, Class A | 2420 | 156405 |
|  Allegion PLC (b) | 2295 | 379570 |
|  Axon Enterprise, Inc. (a) | 1965 | 950235 |
|  Builders FirstSource, Inc. (a) | 2840 | 324896 |
|  Carrier Global Corporation | 20505 | 1221688 |
|  CNH Industrial NV (b) | 20578 | 221419 |
|  Deere & Company | 6873 | 3628944 |
|  Eaton Corporation PLC | 10126 | 3558479 |
|  Fastenal Company | 29763 | 1290524 |
|  Ferguson Enterprises, Inc. | 5331 | 1345864 |

---

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Capital Goods — (continued) | Capital Goods — (continued) | Capital Goods — (continued) | Capital Goods — (continued) |
|  Fortive Corporation | 7448 | $| 393329 |
|  Fortune Brands Innovations, Inc. | 2206 |  | 119345 |
|  Granite Construction, Inc. | 1276 |  | 154064 |
|  Hubbell, Inc. | 1438 |  | 701658 |
|  IDEX Corporation | 1720 |  | 341506 |
|  Illinois Tool Works, Inc. | 7774 |  | 2031035 |
|  Lennox International, Inc. | 881 |  | 436166 |
|  Masco Corporation | 5216 |  | 344725 |
|  Middleby Corporation (The) (a) | 1116 |  | 164242 |
|  Owens Corning | 1980 |  | 237283 |
|  PACCAR, Inc. | 14075 |  | 1729958 |
|  Pentair PLC (b) | 4194 |  | 441922 |
|  Quanta Services, Inc. | 3816 |  | 1811188 |
|  Roper Technologies, Inc. | 2796 |  | 1037959 |
|  Sensata Technologies Holding PLC | 3821 |  | 132168 |
|  Snap-on, Inc. | 1353 |  | 495347 |
|  Stanley Black & Decker, Inc. | 4103 |  | 322742 |
|  Timken Company (The) | 1376 |  | 128229 |
|  Trane Technologies PLC | 5818 |  | 2446934 |
|  Westinghouse Air Brake Technologies Corporation | 4568 |  | 1051280 |
|  Xylem, Inc. | 6640 |  | 915457 |
|  |  |  | 31069852 |
|  Healthcare Equipment & Services — 2.8% | Healthcare Equipment & Services — 2.8% | Healthcare Equipment & Services — 2.8% | Healthcare Equipment & Services — 2.8% |
|  Align Technology, Inc. (a) | 1776 |  | 289541 |
|  Becton, Dickinson & Company | 7512 |  | 1528542 |
|  Cardinal Health, Inc. | 6363 |  | 1367282 |
|  Cencora, Inc. | 4870 |  | 1749401 |
|  Centene Corporation (a) | 12910 |  | 559261 |
|  Cigna Group (The) | 7077 |  | 1939877 |
|  DaVita, Inc. (a) | 853 |  | 93267 |
|  DENTSPLY SIRONA, Inc. | 3100 |  | 38657 |
|  Dexcom, Inc. (a) | 10349 |  | 755891 |
|  Edwards Lifesciences<br>Corporation (a) | 15920 |  | 1295251 |
|  Elevance Health, Inc. | 5958 |  | 2059919 |
|  HCA Healthcare, Inc. | 4383 |  | 2140087 |
|  Henry Schein, Inc. (a) | 2611 |  | 197078 |
|  Hologic, Inc. (a) | 5359 |  | 401550 |
|  Humana, Inc. | 3159 |  | 616637 |
|  IDEXX Laboratories, Inc. (a) | 2152 |  | 1442830 |
|  Insulet Corporation (a) | 1861 |  | 476062 |
|  Labcorp Holdings, Inc. | 2147 |  | 582954 |
|  Pediatrix Medical Group, Inc. (a) | 2481 |  | 53044 |

---

------

GREEN CENTURY EQUITY FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Healthcare Equipment & Services — (continued) | Healthcare Equipment & Services — (continued) | Healthcare Equipment & Services — (continued) | Healthcare Equipment & Services — (continued) |
|  Quest Diagnostics, Inc. | 2905 | $| 543322 |
|  ResMed, Inc. | 3969 |  | 1025232 |
|  Select Medical Holdings<br>Corporation | 2396 |  | 36060 |
|  STERIS PLC | 2479 |  | 650985 |
|  Teladoc Health, Inc. (a) | 2971 |  | 16192 |
|  Veeva Systems, Inc., Class A (a) | 4187 |  | 853813 |
|  West Pharmaceutical Services, Inc. | 1893 |  | 437510 |
|  Zimmer Biomet Holdings, Inc. | 4813 |  | 419068 |
|  |  |  | 21569313 |
|  Equity Real Estate Investment Trusts (REITs) — 2.8% | Equity Real Estate Investment Trusts (REITs) — 2.8% | Equity Real Estate Investment Trusts (REITs) — 2.8% | Equity Real Estate Investment Trusts (REITs) — 2.8% |
|  American Tower Corporation REIT | 12373 |  | 2218231 |
|  AvalonBay Communities, Inc. REIT | 3390 |  | 602301 |
|  BXP, Inc. REIT | 3677 |  | 237792 |
|  CBRE Group, Inc., Class A (a) | 8073 |  | 1375074 |
|  COPT Defense Properties REIT | 2139 |  | 65903 |
|  Crown Castle, Inc. REIT | 11094 |  | 963070 |
|  Digital Realty Trust, Inc. REIT | 9119 |  | 1513298 |
|  Equinix, Inc. REIT | 2604 |  | 2137702 |
|  Equity Residential REIT | 8434 |  | 525607 |
|  Federal Realty Investment Trust REIT | 1103 |  | 111579 |
|  Healthpeak Properties, Inc. | 16694 |  | 287805 |
|  Host Hotels & Resorts, Inc. REIT | 18850 |  | 349290 |
|  Iron Mountain, Inc. REIT | 7808 |  | 719351 |
|  Jones Lang LaSalle, Inc. (a) | 1343 |  | 480673 |
|  Macerich Company (The) REIT | 5627 |  | 106519 |
|  Prologis, Inc. REIT | 24871 |  | 3247158 |
|  SBA Communications Corporation, Class A REIT | 2737 |  | 503909 |
|  Simon Property Group, Inc. REIT | 8702 |  | 1664780 |
|  Ventas, Inc. REIT | 12213 |  | 948584 |
|  Welltower, Inc. REIT | 17769 |  | 3346969 |
|  |  |  | 21405595 |
|  Consumer Services — 2.7% | Consumer Services — 2.7% | Consumer Services — 2.7% | Consumer Services — 2.7% |
|  Aramark | 6421 |  | 247144 |
|  Booking Holdings, Inc. | 846 |  | 4231557 |
|  Choice Hotels International, Inc. | 427 |  | 43896 |
|  Darden Restaurants, Inc. | 3035 |  | 605027 |
|  Domino's Pizza, Inc. | 822 |  | 337291 |
|  Hilton Worldwide Holdings, Inc. | 6364 |  | 1899718 |
|  Marriott International, Inc., Class A | 6238 |  | 1966841 |
|  McDonald's Corporation | 18706 |  | 5892390 |

---

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Consumer Services — (continued) | Consumer Services — (continued) | Consumer Services — (continued) | Consumer Services — (continued) |
|  Royal Caribbean Cruises Ltd. | 6681 | $| 2168987 |
|  Starbucks Corporation | 30272 |  | 2783510 |
|  Vail Resorts, Inc. | 766 |  | 101932 |
|  |  |  | 20278293 |
|  Food & Beverage — 2.6% | Food & Beverage — 2.6% | Food & Beverage — 2.6% | Food & Beverage — 2.6% |
|  Bunge Global SA | 3898 |  | 443904 |
|  Campbell Soup Company (The) | 4254 |  | 119027 |
|  Coca-Cola Company (The) | 107846 |  | 8067959 |
|  Conagra Brands, Inc. | 11121 |  | 205850 |
|  Darling Ingredients, Inc. (a) | 4118 |  | 188028 |
|  General Mills, Inc. | 13627 |  | 630385 |
|  Hormel Foods Corporation | 7307 |  | 179825 |
|  Ingredion, Inc. | 1307 |  | 154357 |
|  JM Smucker Company (The) | 2446 |  | 256487 |
|  Keurig Dr Pepper, Inc. | 33556 |  | 920777 |
|  Kraft Heinz Company (The) | 22799 |  | 541248 |
|  Lamb Weston Holdings, Inc. | 3449 |  | 158413 |
|  McCormick & Company, Inc. | 5975 |  | 369434 |
|  Mondelez International, Inc., Class A | 34131 |  | 1995640 |
|  PepsiCo, Inc. | 35946 |  | 5522384 |
|  |  |  | 19753718 |
|  Consumer Discretionary Distribution & Retail — 2.5% | Consumer Discretionary Distribution & Retail — 2.5% | Consumer Discretionary Distribution & Retail — 2.5% | Consumer Discretionary Distribution & Retail — 2.5% |
|  AutoNation, Inc. (a) | 649 |  | 133032 |
|  Best Buy Company, Inc. | 5296 |  | 344770 |
|  Buckle, Inc. (The) | 1278 |  | 60449 |
|  CarMax, Inc. (a) | 3850 |  | 171479 |
|  GameStop Corporation, Class A (a) | 11162 |  | 266549 |
|  Gap, Inc. (The) | 6461 |  | 180779 |
|  Home Depot, Inc. (The) | 26036 |  | 9752825 |
|  Kohl's Corporation | 3212 |  | 56114 |
|  LKQ Corporation | 6235 |  | 204820 |
|  Lowe's Companies, Inc. | 15032 |  | 4014446 |
|  Pool Corporation | 689 |  | 175068 |
|  Signet Jewelers Ltd. | 1036 |  | 95592 |
|  Target Corporation | 12153 |  | 1281777 |
|  Tractor Supply Company | 14062 |  | 715474 |
|  Ulta Beauty, Inc. (a) | 1209 |  | 782658 |
|  Williams-Sonoma, Inc. | 3325 |  | 680461 |
|  |  |  | 18916293 |
|  Materials — 2.2% | Materials — 2.2% | Materials — 2.2% | Materials — 2.2% |
|  Albemarle Corporation | 3153 |  | 537996 |

---

------

GREEN CENTURY EQUITY FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Materials — (continued) | Materials — (continued) | Materials — (continued) | Materials — (continued) |
|  Amcor PLC (b) | 12654 | $| 559939 |
|  Avery Dennison Corporation | 1920 |  | 356179 |
|  Axalta Coating Systems Ltd. (a) | 3763 |  | 126362 |
|  Ball Corporation | 6794 |  | 386375 |
|  Compass Minerals International,<br>Inc. (a) | 373 |  | 9318 |
|  CRH PLC (b) | 17822 |  | 2181591 |
|  H.B. Fuller Company | 1143 |  | 68694 |
|  International Flavors &<br>Fragrances, Inc. | 6327 |  | 441688 |
|  Linde PLC (b) | 12508 |  | 5715781 |
|  Mosaic Company (The) | 8402 |  | 231055 |
|  Newmont Corporation | 28888 |  | 3245567 |
|  PPG Industries, Inc. | 5493 |  | 635156 |
|  Sealed Air Corporation | 3733 |  | 156338 |
|  Sherwin-Williams Company (The) | 6335 |  | 2246644 |
|  Sonoco Products Company | 2880 |  | 138240 |
|  |  |  | 17036923 |
|  Insurance — 2.2% | Insurance — 2.2% | Insurance — 2.2% | Insurance — 2.2% |
|  Allstate Corporation (The) | 7080 |  | 1408849 |
|  Arthur J. Gallagher & Company | 6708 |  | 1672774 |
|  Chubb Ltd. (b) | 9929 |  | 3073621 |
|  Hartford Insurance Group, Inc. (The) | 7387 |  | 997688 |
|  Lincoln National Corporation | 4185 |  | 174138 |
|  Marsh & McLennan Companies, Inc. | 12638 |  | 2378345 |
|  Principal Financial Group, Inc. | 5969 |  | 565384 |
|  Progressive Corporation (The) | 15304 |  | 3183232 |
|  Prudential Financial, Inc. | 9210 |  | 1023323 |
|  Travelers Companies, Inc. (The) | 6022 |  | 1713319 |
|  Willis Towers Watson PLC (b) | 2265 |  | 719070 |
|  |  |  | 16909743 |
|  Technology Hardware & Equipment — 2.2% | Technology Hardware & Equipment — 2.2% | Technology Hardware & Equipment — 2.2% | Technology Hardware & Equipment — 2.2% |
|  Cognex Corporation | 4457 |  | 172664 |
|  Corning, Inc. | 21770 |  | 2247752 |
|  Dell Technologies, Inc., Class C | 8746 |  | 1000892 |
|  F5, Inc. (a) | 1573 |  | 433535 |
|  Flex Ltd. (a) | 10318 |  | 650447 |
|  Hewlett Packard Enterprise<br>Company | 36011 |  | 774957 |
|  HP, Inc. | 25512 |  | 495953 |

---

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Technology Hardware & Equipment — (continued) | Technology Hardware & Equipment — (continued) | Technology Hardware & Equipment — (continued) | Technology Hardware & Equipment — (continued) |
|  Keysight Technologies, Inc. (a) | 4573 | $| 989277 |
|  Motorola Solutions, Inc. | 4294 |  | 1728507 |
|  NetApp, Inc. | 5383 |  | 518652 |
|  Palo Alto Networks, Inc. (a) | 17982 |  | 3182275 |
|  TE Connectivity PLC (b) | 6608 |  | 1472130 |
|  Trimble, Inc. (a) | 6335 |  | 428246 |
|  Western Digital Corporation | 9188 |  | 2299113 |
|  Zebra Technologies Corporation, Class A (a) | 1316 |  | 309234 |
|  |  |  | 16703634 |
|  Household & Personal Products — 1.8% | Household & Personal Products — 1.8% | Household & Personal Products — 1.8% | Household & Personal Products — 1.8% |
|  Church & Dwight Company, Inc. | 6220 |  | 598675 |
|  Clorox Company (The) | 2943 |  | 331941 |
|  Colgate-Palmolive Company | 21121 |  | 1907015 |
|  Estee Lauder Companies, Inc. (The), Class A | 6217 |  | 716696 |
|  Kimberly-Clark Corporation | 8675 |  | 867413 |
|  Procter & Gamble Company (The) | 61733 |  | 9369217 |
|  |  |  | 13790957 |
|  Banks — 1.1% | Banks — 1.1% | Banks — 1.1% | Banks — 1.1% |
|  Bank of Hawaii Corporation | 738 |  | 55188 |
|  Cathay General Bancorp | 445 |  | 22775 |
|  Citizens Financial Group, Inc. | 11753 |  | 740204 |
|  Huntington Bancshares, Inc. | 53078 |  | 927803 |
|  International Bancshares<br>Corporation | 813 |  | 56617 |
|  KeyCorp | 25962 |  | 558702 |
|  M&T Bank Corporation | 3947 |  | 874537 |
|  Old National Bancorp | 7650 |  | 186889 |
|  PNC Financial Services Group, Inc. (The) | 10754 |  | 2401368 |
|  Regions Financial Corporation | 22996 |  | 655386 |
|  Truist Financial Corporation | 36809 |  | 1892719 |
|  Zions Bancorp N A | 2405 |  | 144084 |
|  |  |  | 8516272 |
|  Telecommunication Services — 0.7% | Telecommunication Services — 0.7% | Telecommunication Services — 0.7% | Telecommunication Services — 0.7% |
|  Lumen Technologies Inc. (a) | 26764 |  | 236059 |
|  Verizon Communications, Inc. | 111662 |  | 4971192 |
|  |  |  | 5207251 |
|  Consumer Durables & Apparel — 0.6% | Consumer Durables & Apparel — 0.6% | Consumer Durables & Apparel — 0.6% | Consumer Durables & Apparel — 0.6% |
|  Callaway Golf Company (a) | 3651 |  | 52392 |

---

------

GREEN CENTURY EQUITY FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) concluded

---

| | | | |
|:---|:---|:---|:---|
|  | SHARES | VALUE | VALUE |
|  Consumer Durables & Apparel — (continued) | Consumer Durables & Apparel — (continued) | Consumer Durables & Apparel — (continued) | Consumer Durables & Apparel — (continued) |
|  Capri Holdings Ltd. (a)(b) | 2975 | $| 67146 |
|  Columbia Sportswear Company | 813 |  | 44943 |
|  Deckers Outdoor Corporation (a) | 4100 |  | 489294 |
|  Ethan Allen Interiors, Inc. | 161 |  | 3692 |
|  Garmin Ltd. (b) | 4397 |  | 886611 |
|  Hasbro, Inc. | 2902 |  | 259177 |
|  La-Z-Boy, Inc. | 1192 |  | 43401 |
|  Mattel, Inc. (a) | 7909 |  | 165219 |
|  Meritage Homes Corporation | 1314 |  | 91336 |
|  Mohawk Industries, Inc. (a) | 1301 |  | 154012 |
|  Newell Brands, Inc. | 11715 |  | 49789 |
|  NIKE, Inc., Class B | 31716 |  | 1960366 |
|  PVH Corporation | 1296 |  | 80818 |
|  Under Armour, Inc., Class A (a) | 6848 |  | 42252 |
|  Under Armour, Inc., Class C (a) | 381 |  | 2313 |
|  VF Corporation | 8674 |  | 169924 |
|  Whirlpool Corporation | 1547 |  | 123744 |
|  Wolverine World Wide, Inc. | 1906 |  | 33774 |
|  |  |  | 4720203 |
|  Commercial & Professional Services — 0.5% | Commercial & Professional Services — 0.5% | Commercial & Professional Services — 0.5% | Commercial & Professional Services — 0.5% |
|  ASGN, Inc. (a) | 575 |  | 29952 |
|  Broadridge Financial Solutions, Inc. | 2863 |  | 564326 |
|  Copart, Inc. (a) | 24625 |  | 999283 |
|  Deluxe Corporation | 1380 |  | 36432 |
|  Exponent, Inc. | 1597 |  | 114776 |
|  HNI Corporation | 1789 |  | 85496 |
|  ICF International, Inc. | 378 |  | 35249 |
|  Interface, Inc. | 1694 |  | 53310 |
|  Jacobs Solutions, Inc. | 3009 |  | 406997 |
|  ManpowerGroup, Inc. | 1123 |  | 40799 |
|  Robert Half, Inc. | 2960 |  | 102446 |
|  Tetra Tech, Inc. | 6637 |  | 249949 |
|  TransUnion | 5088 |  | 402054 |
|  Veralto Corporation | 6635 |  | 656732 |
|  |  |  | 3777801 |
|  Transportation — 0.5% | Transportation — 0.5% | Transportation — 0.5% | Transportation — 0.5% |
|  ArcBest Corporation | 653 |  | 58913 |
|  Avis Budget Group, Inc. (a) | 506 |  | 58185 |
|  C.H. Robinson Worldwide, Inc. | 3199 |  | 623645 |
|  J.B. Hunt Transport Services, Inc. | 2058 |  | 417198 |
|  Ryder System, Inc. | 1053 |  | 201418 |
|  U-Haul Holding Company | 2306 |  | 118321 |
|  United Parcel Service, Inc., Class B | 19508 |  | 2072140 |
|  |  |  | 3549820 |

---

---

| | | |
|:---|:---|:---|
|  | SHARES | VALUE |
|  Automobiles & Components — 0.2% | Automobiles & Components — 0.2% |  |
|  Aptiv PLC (a) | 5750 | $435562 |
|  Autoliv, Inc. (b) | 1947 | 236054 |
|  BorgWarner, Inc. | 5533 | 262320 |
|  Harley-Davidson, Inc. | 2070 | 40986 |
|  Rivian Automotive, Inc., Class A (a) | 20759 | 306195 |
|  |  | 1281117 |
|  Consumer Staples Distribution & Retail — 0.1% | Consumer Staples Distribution & Retail — 0.1% | Consumer Staples Distribution & Retail — 0.1% |
|  Sysco Corporation | 12509 | 1048880 |
|  Utilities — 0.1% |  |  |
|  American Water Works Company, Inc. | 4946 | 638677 |
|  Healthy Living — 0.0% |  |  |
|  United Natural Foods, Inc. (a) | 1738 | 64706 |
|  Total Common Stocks<br>(Cost $236,849,218) |  | 760905101 |
|  SHORT-TERM INVESTMENTS — 0.4% | SHORT-TERM INVESTMENTS — 0.4% |  |
|  UMB Money Market Fiduciary Account, 0.01% (c)<br>(Cost $2,655,359) |  | 2655359 |
|  Total Short-term Investments<br>(Cost $2,655,359) |  | 2655359 |
|  **TOTAL INVESTMENTS (d) — 100.0%** | **TOTAL INVESTMENTS (d) — 100.0%** | **TOTAL INVESTMENTS (d) — 100.0%** |
| &nbsp;&nbsp;&nbsp;&nbsp; (Cost $239,504,577) |  | 763560460 |
|  Other Assets Less Liabilities — 0.0% | Other Assets Less Liabilities — 0.0% | 44242 |
|  **NET ASSETS — 100.0%** |  | $763604702 |

---

PLC – Public Limited Company

REIT – Real Estate Investment Trusts

&nbsp;&nbsp;&nbsp;&nbsp;(a) Non-income producing security.

&nbsp;&nbsp;&nbsp;&nbsp;(b) Securities whose value are determined or significantly influenced by trading in markets other than the United States or Canada.

&nbsp;&nbsp;&nbsp;&nbsp;(c) The rate quoted is the annualized seven-day yield of the fund at the period end.

&nbsp;&nbsp;&nbsp;&nbsp;(d) The cost of investments for federal income tax purposes is $245,521,834 resulting in gross unrealized appreciation and depreciation of $532,872,279 and $14,833,653 respectively, or net unrealized appreciation of $518,038,626.

See Notes to Financial Statements

------

GREEN CENTURY MSCI INTERNATIONAL INDEX FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited)

---

| | | |
|:---|:---|:---|
|  COMMON STOCKS — 99.1% | COMMON STOCKS — 99.1% | COMMON STOCKS — 99.1% |
|  | SHARES | VALUE |
|  Japan — 22.4% |  |  |
|  Ajinomoto Company, Inc. | 29800 | $681730 |
|  ANA Holdings, Inc. | 5200 | 100958 |
|  Asahi Kasei Corporation | 42800 | 415203 |
|  Bridgestone Corporation | 37600 | 846536 |
|  Daiwa Securities Group, Inc. | 43800 | 426804 |
|  FANUC Corporation | 30731 | 1233991 |
|  Fujitsu Ltd. | 57600 | 1600461 |
|  Hankyu Hanshin Holdings, Inc. | 7900 | 220592 |
|  Hitachi Ltd. | 118215 | 4102077 |
|  Hoya Corporation | 11201 | 1879034 |
|  JFE Holdings, Inc. | 19200 | 258493 |
|  Kao Corp. | 15200 | 608038 |
|  KDDI Corp. | 96334 | 1626501 |
|  LY Corporation. | 90800 | 232486 |
|  MatsukiyoCocokara & Company | 10800 | 172928 |
|  Mitsubishi Estate Company Ltd. | 34700 | 884362 |
|  Nitto Denko Corporation | 22400 | 497803 |
|  Nomura Research Institute Ltd. | 12414 | 377639 |
|  Oriental Land Company Ltd. | 35600 | 623228 |
|  Pan Pacific International Holdings Corporation | 62900 | 372402 |
|  Rakuten Group, Inc. (a) | 50000 | 299786 |
|  Recruit Holdings Company Ltd. | 46100 | 2428261 |
|  Secom Company Ltd. | 13100 | 479900 |
|  Sekisui House Ltd. | 19600 | 436821 |
|  Shiseido Company Ltd. | 13400 | 228868 |
|  SoftBank Corporation | 943970 | 1283100 |
|  Sompo Holdings, Inc. | 28984 | 999500 |
|  Sony Group Corporation | 140680 | 3101700 |
|  Sumitomo Metal Mining Company, Ltd. | 8000 | 452067 |
|  Sumitomo Mitsui Financial Group, Inc. | 120273 | 4232461 |
|  Sysmex Corporation | 16900 | 159912 |
|  T&D Holdings, Inc. | 15300 | 377895 |
|  Tokio Marine Holdings, Inc. | 60100 | 2240080 |
|  Tokyo Electron Ltd. | 14700 | 3916948 |
|  Tokyu Corp. | 16700 | 188355 |
|  Toray Industries, Inc. | 46000 | 339306 |
|  Unicharm Corporation | 36800 | 223378 |
|  Yamaha Motor Company Ltd. | 30200 | 228061 |
|  Yokohama Financial Group Ltd. | 34100 | 310574 |
|  ZOZO, Inc. | 15000 | 123892 |
|  |  | 39212131 |

---

---

| | | |
|:---|:---|:---|
|  | SHARES | VALUE |
|  Switzerland — 11.2% |  |  |
|  ABB Ltd. | 51463 | $4430578 |
|  Alcon, Inc. | 16422 | 1329150 |
|  Banque Cantonale Vaudoise | 986 | 133427 |
|  DSM-Firmenich AG | 5671 | 447196 |
|  Givaudan SA | 303 | 1171168 |
|  Julius Baer Group Ltd. | 6780 | 566299 |
|  Kuehne + Nagel International AG | 1599 | 370244 |
|  Lonza Group AG | 2300 | 1562634 |
|  SGS SA | 5455 | 656519 |
|  Sika AG | 5018 | 962845 |
|  Sonova Holding AG | 1667 | 456201 |
|  Straumann Holding AG | 3674 | 441842 |
|  Swiss Life Holding AG | 933 | 1023018 |
|  Swiss Prime Site AG | 2617 | 445491 |
|  Swiss Re AG | 9788 | 1563863 |
|  VAT Group AG (b) | 890 | 575496 |
|  Zurich Insurance Group AG | 4806 | 3418873 |
|  |  | 19554844 |
|  Canada — 10.6% |  |  |
|  Bank of Nova Scotia (The) | 26520 | 1982622 |
|  CGI, Inc. | 6438 | 551747 |
|  Dollarama, Inc. | 8976 | 1209588 |
|  Element Fleet Management Corporation | 13157 | 333345 |
|  FirstService Corporation | 1327 | 205584 |
|  iA Financial Corporation, Inc. | 3027 | 371923 |
|  Intact Financial Corporation | 5821 | 1059766 |
|  Metro, Inc. | 6716 | 445810 |
|  National Bank of Canada | 12731 | 1516931 |
|  Open Text Corporation | 8309 | 212225 |
|  RB Global, Inc. | 6113 | 693857 |
|  Saputo, Inc. | 8120 | 244966 |
|  Shopify, Inc. (a) | 17102 | 2243970 |
|  Sun Life Financial, Inc. | 18345 | 1155909 |
|  TELUS Corporation | 16432 | 229278 |
|  Thomson Reuters Corporation | 5181 | 572433 |
|  TMX Group Ltd. | 9081 | 335244 |
|  Toronto-Dominion Bank (The) | 27341 | 2555200 |
|  Wheaton Precious Metals Corporation | 13982 | 1841985 |
|  WSP Global, Inc. | 4299 | 831039 |
|  |  | 18593422 |

---

------

GREEN CENTURY MSCI INTERNATIONAL INDEX FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

---

| | | |
|:---|:---|:---|
|  | SHARES | VALUE |
|  Netherlands — 10.0% |  |  |
|  Akzo Nobel NV | 5566 | $389954 |
|  Argenx SE (a) | 2018 | 1697146 |
|  ASML Holding NV | 8033 | 11519014 |
|  Koninklijke KPN NV | 127654 | 625211 |
|  Prosus NV (a) | 42978 | 2471388 |
|  Wolters Kluwer NV | 7661 | 719419 |
|  |  | 17422132 |
|  France — 9.7% |  |  |
|  Amundi SA (b) | 2064 | 183516 |
|  AXA SA | 56945 | 2596742 |
|  Cie Generale des Etablissements Michelin SCA | 22071 | 819651 |
|  Credit Agricole SA | 35148 | 761211 |
|  Danone SA | 21252 | 1665370 |
|  Hermes International SCA | 1039 | 2499930 |
|  Ipsen SA | 1213 | 198170 |
|  Publicis Groupe SA | 7531 | 752739 |
|  Rexel SA | 7429 | 311329 |
|  Schneider Electric SE | 17986 | 5156822 |
|  Societe Generale SA | 23149 | 2028614 |
|  |  | 16974094 |
|  United Kingdom — 8.5% |  |  |
|  3i Group PLC | 32538 | 1494780 |
|  Admiral Group PLC | 8564 | 322301 |
|  Autotrader Group PLC (b) | 28300 | 208614 |
|  Barratt Redrow PLC | 44482 | 236860 |
|  Informa PLC | 42549 | 513476 |
|  Intertek Group PLC | 5009 | 307293 |
|  Kingfisher PLC | 56167 | 258839 |
|  Land Securities Group PLC REIT | 23042 | 205663 |
|  Legal & General Group PLC | 186813 | 678284 |
|  London Stock Exchange Group PLC | 15303 | $1706946 |
|  M&G PLC | 75612 | 320544 |
|  Pearson PLC | 19169 | 252132 |
|  Phoenix Group Holdings PLC | 22884 | 231946 |
|  RELX PLC | 59944 | 2125157 |
|  Schroders PLC | 23728 | 146966 |
|  Segro PLC REIT | 41893 | 436471 |
|  Smiths Group PLC | 10715 | 367977 |
|  Unilever PLC | 71545 | 4867214 |
|  Whitbread PLC | 5578 | 208220 |
|  |  | 14889683 |

---

---

| | | |
|:---|:---|:---|
|  | SHARES | VALUE |
|  Denmark — 5.3% |  |  |
|  Demant A/S (a) | 3263 | $114215 |
|  Genmab A/S (a) | 2009 | 654498 |
|  Novo Nordisk A/S, Class B | 105666 | 6274317 |
|  Novonesis (Novozymes) B | 11592 | 710277 |
|  Pandora A/S | 2597 | 210209 |
|  Tryg A/S | 10954 | 266213 |
|  Vestas Wind Systems A/S | 33003 | 1000360 |
|  |  | 9230089 |
|  Australia — 5.2% |  |  |
|  ASX Ltd. | 6416 | 255378 |
|  Brambles Ltd. | 44849 | 696157 |
|  CAR Group Ltd. | 12294 | 235238 |
|  Cochlear Ltd. | 2147 | 400175 |
|  CSL Ltd. | 15889 | 2002114 |
|  Evolution Mining Ltd. | 66857 | 642025 |
|  Goodman Group | 67188 | 1427281 |
|  Northern Star Resources Ltd. | 44795 | 823456 |
|  QBE Insurance Group Ltd. | 49484 | 678197 |
|  REA Group Ltd. | 1710 | 224831 |
|  Suncorp Group Ltd. | 35570 | 418716 |
|  Transurban Group | 102578 | 992187 |
|  WiseTech Global Ltd. | 6569 | 263190 |
|  |  | 9058945 |
|  Germany — 3.1% |  |  |
|  adidas AG | 5630 | 998258 |
|  Deutsche Boerse AG | 6186 | 1566513 |
|  Fresenius SE & Company KGaA | 13904 | 777790 |
|  Henkel AG & Company KGaA | 3452 | 284971 |
|  Henkel AG & Company KGaA (c) | 5255 | 461680 |
|  LEG Immobilien SE | 2505 | 181138 |
|  Merck KGaA | 4245 | 632499 |
|  QIAGEN NV | 6666 | 353440 |
|  Sartorius AG (c) | 870 | 243168 |
|  |  | 5499457 |
|  Sweden — 3.1% |  |  |
|  Boliden AB (a) | 9302 | 651389 |
|  EQT AB | 16250 | 616781 |
|  Essity AB, Class B | 19711 | 583616 |
|  Nibe Industrier AB B Shares | 48750 | 186751 |
|  Sandvik AB | 34909 | 1378429 |
|  Svenska Cellulosa AB SCA, Class B | 20016 | 250619 |

---

------

GREEN CENTURY MSCI INTERNATIONAL INDEX FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

---

| | | |
|:---|:---|:---|
|  | SHARES | VALUE |
|  Sweden — (continued) |  |  |
|  Svenska Handelsbanken ABA Shares | 47978 | $756376 |
|  Swedish Orphan Biovitrum AB (a) | 6525 | 247789 |
|  Tele2 AB B Shares | 18019 | 331523 |
|  Telia Company AB | 76702 | 350410 |
|  |  | 5353683 |
|  Hong Kong — 2.4% |  |  |
|  AIA Group Ltd. | 338049 | 3900236 |
|  MTR Corporation Ltd. | 51167 | 226251 |
|  |  | 4126487 |
|  Spain — 1.8% |  |  |
|  Amadeus IT Group SA | 14817 | 993470 |
|  CaixaBank SA | 127694 | 1685648 |
|  Cellnex Telecom SA (b) | 16217 | 501614 |
|  |  | 3180732 |
|  Finland — 1.7% |  |  |
|  Elisa Oyj | 4671 | 206630 |
|  Kesko Oyj B Shares | 8936 | 226030 |
|  Kone Oyj, Class B | 11200 | 804918 |
|  Metso Oyj | 21817 | 426557 |
|  Orion Oyj, Class B | 3555 | 294003 |
|  Sampo Oyj A Shares | 79515 | 886815 |
|  Stora Enso Oyj R Shares | 18922 | 217839 |
|  |  | 3062792 |
|  Italy — 1.4% |  |  |
|  FinecoBank Banca Fineco SpA | 20156 | 534361 |
|  Generali | 27906 | 1138341 |
|  Moncler SpA | 7701 | 448706 |
|  Poste Italiane SpA (b) | 14871 | 391691 |
|  |  | 2513099 |
|  Norway — 1.1% |  |  |
|  DNB Bank ASA | 29103 | 834481 |
|  Gjensidige Forsikring ASA | 6628 | 188650 |
|  Mowi ASA | 15099 | 348063 |
|  Orkla ASA | 22833 | 271675 |
|  Telenor ASA | 19907 | 334867 |
|  |  | 1977736 |
|  Belgium — 0.8% |  |  |
|  Ageas SA | 4861 | 345292 |
|  KBC Group NV | 7563 | 1065786 |
|  |  | 1411078 |

---

---

| | | |
|:---|:---|:---|
|  | SHARES | VALUE |
|  Ireland — 0.3% |  |  |
|  Kerry Group PLC, Class A | 5341 | $474791 |
|  Luxembourg — 0.3% |  |  |
|  Eurofins Scientific SE | 3888 | 314524 |
|  InPost SA (a) | 8429 | 132119 |
|  |  | 446643 |
|  Singapore — 0.1% |  |  |
|  CapitaLand Investment Ltd. | 76611 | 185484 |
|  New Zealand — 0.1% |  |  |
|  Meridian Energy Ltd. | 44114 | 149649 |
|  Total Common Stocks<br>(Cost $118,792,424) |  | 173316971 |
|  SHORT-TERM INVESTMENTS — 0.2% | SHORT-TERM INVESTMENTS — 0.2% |  |
|  UMB Money Market Fiduciary Account, 0.01% (d)<br>(Cost $312,663) |  | 312663 |
|  Total Short-term Investments<br>(Cost $312,663) |  | 312663 |
|  **TOTAL INVESTMENTS (e) — 99.3%** | **TOTAL INVESTMENTS (e) — 99.3%** | **TOTAL INVESTMENTS (e) — 99.3%** |
| &nbsp;&nbsp;&nbsp;&nbsp; (Cost $119,105,087) |  | 173629634 |
|  Other Assets Less Liabilities — 0.7% | Other Assets Less Liabilities — 0.7% | 1150316 |
|  **NET ASSETS — 100.0%** |  | $174779950 |

---

PLC – Public Limited Company

REIT – Real Estate Investment Trusts

&nbsp;&nbsp;&nbsp;&nbsp;(a) Non-income producing security.

&nbsp;&nbsp;&nbsp;&nbsp;(b) Security exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration to qualified institutional buyers. The total value of these securities is $1,860,931.

&nbsp;&nbsp;&nbsp;&nbsp;(c) Preference shares.

&nbsp;&nbsp;&nbsp;&nbsp;(d) The rate quoted is the annualized seven-day yield of the fund at the period end.

&nbsp;&nbsp;&nbsp;&nbsp;(e) The cost of investments for federal income tax purposes is $125,037,316 resulting in gross unrealized appreciation and depreciation of $56,707,744 and $8,115,426 respectively, or net unrealized appreciation of $48,592,318.

------

GREEN CENTURY MSCI INTERNATIONAL INDEX FUND PORTFOLIO OF INVESTMENTS January 31, 2026 &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) concluded

FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| Purchase<br>Contracts | Counterparty | Currency<br>Exchange | Settlement<br>Date | Currency<br>Amount<br>Purchased | Value At<br>Settlement<br>Date | Value At<br>January 31, 2026 | Unrealized<br>Appreciation<br>(Depreciation) |
| Australian Dollar | Bank of Montreal | AUD per USD | 3/18/2026 | 110000 | $100140 | $104437 | $4297 |
| British Pound | UBS (AG) UK | GBP per USD | 3/18/2026 | 280000 | 134250 | 136826 | 2576 |
| Canadian Dollar | Bank of Montreal | CAD per USD | 3/18/2026 | 280000 | 223598 | 225510 | 1912 |
| Danish Krone | Citigroup | DKK per USD | 3/18/2026 | 280000 | 47482 | 47751 | 269 |
| Euro | Bank of Montreal | EUR per USD | 3/18/2026 | 90000 | 271402 | 273268 | 1866 |
| Hong Kong Dollar | Citigroup | HKD per USD | 3/18/2026 | 90000 | 12884 | 12821 | (63) |
| Japanese Yen | JP Morgan | JPY per USD | 3/18/2026 | 61820000 | 402546 | 401042 | (1504) |
| Swedish Krona | Citigroup | SEK per USD | 3/18/2026 | 260000 | 28300 | 29262 | 962 |
| Switzerland Franc | Bank of Montreal | CHF per USD | 3/18/2026 | 60000 | 76272 | 78025 | 1753 |
|  |  |  |  |  | $1296874 | $1308942 | $12068 |
| Sale<br>Contracts | Counterparty | Currency<br>Exchange | Settlement<br>Date | Currency<br>Amount<br>Sold | Value At<br>Settlement<br>Date | Value At<br>January 31, 2026 | Unrealized<br>Appreciation<br>(Depreciation) |
| Australian Dollar | Morgan Stanley | AUD per USD | 3/18/2026 | (60000) | $(41597) | $(41775) | $(178) |
| Canadian Dollar | Bank of Montreal | CAD per USD | 3/18/2026 | (60000) | (43334) | (44150) | (816) |
| Danish Krona | Toronto Dominion | DKK per USD | 3/18/2026 | (290000) | (45798) | (46160) | (362) |
| Euro | Bank of Montreal | EUR per USD | 3/18/2026 | (110000) | (130379) | (130694) | (315) |
| Euro | Toronto Dominion | EUR per USD | 3/18/2026 | (50000) | (58929) | (59406) | (477) |
| Japanese Yen | Bank of Montreal | JPY per USD | 3/18/2026 | (11220000) | (73224) | (72787) | 437 |
| Switzerland Franc | Bank of Montreal | CHF per USD | 3/18/2026 | (30000) | (37762) | (39012) | (1250) |
| Switzerland Franc | Citigroup | CHF per USD | 3/18/2026 | (213208) | (271442) | (277259) | (5817) |
|  |  |  |  |  | $(702465) | $(711243) | $(8778) |
| TOTAL FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS | TOTAL FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS | TOTAL FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS | TOTAL FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS | TOTAL FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS | $594409 | $597699 | $3290 |

---

AUD – Australian Dollar

CAD – Canadian Dollar

CHF – Switzerland Franc

DKK – Danish Krone

---

| | |
|:---|:---|
| EUR | – Euro  |

---

GBP – British Pound

HKD – Hong Kong Dollar

JPY – Japanese Yen

SEK – Swedish Krona

See Notes to Financial Statements

------

GREEN CENTURY FUNDS STATEMENTS OF ASSETS AND LIABILITIES

January 31, 2026

&nbsp;&nbsp;&nbsp;&nbsp;(unaudited)

---

| | | | |
|:---|:---|:---|:---|
|  | BALANCED FUND | EQUITY FUND | MSCI INTERNATIONAL<br>INDEX FUND |
|  ASSETS: |  |  |  |
|  Investments, at value (cost $248,868,438, $239,504,577 and $119,105,087, respectively) | $379697157 | $763560460 | $173629634 |
|  Foreign cash, at value (cost $0, $0 and $204,433, respectively) |  |  | 208514 |
| Receivables for: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Securities sold | 2221322 | 280560 |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Capital stock sold | 14855 | 538163 | 192520 |
| &nbsp;&nbsp;&nbsp;&nbsp; Interest | 1073369 | 19 | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp; Dividends | 204823 | 536694 | 1046910 |
| &nbsp;&nbsp;&nbsp;&nbsp; Unrealized appreciation on forward foreign currency exchange contracts |  |  | 14072 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total assets | 383211526 | 764915896 | 175091655 |
|  LIABILITIES: |  |  |  |
|  Payable for investment securities purchased | 3028947 | 211268 |  |
|  Payable for capital stock repurchased | 338518 | 412333 | 142961 |
|  Accrued expenses | 374054 | 687593 | 157962 |
|  Unrealized depreciation on forward foreign currency exchange contracts |  |  | 10782 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total liabilities | 3741519 | 1311194 | 311705 |
|  NET ASSETS | $379470007 | $763604702 | $174779950 |
|  NET ASSETS CONSIST OF: |  |  |  |
|  Paid-in capital (par value of $0.01 per share with unlimited number of shares authorized) | $244131478 | $241595066 | $123304873 |
|  Net distributable earnings | 135338529 | 522009636 | 51475077 |
|  NET ASSETS | $379470007 | $763604702 | $174779950 |
|  NET ASSET VALUE PER SHARE PER CLASS: |  |  |  |
| Individual Investor Class Shares: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net assets applicable to shares outstanding | $262536564 | $407417221 | $52596040 |
| &nbsp;&nbsp;&nbsp;&nbsp; Shares of beneficial interest issued and outstanding | 7357722 | 3970842 | 3266221 |
| &nbsp;&nbsp;&nbsp;&nbsp; Net asset value per share | $35.68 | $102.60 | $16.10 |
| Institutional Class Shares: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net assets applicable to shares outstanding | $116933443 | $356187481 | $122183910 |
| &nbsp;&nbsp;&nbsp;&nbsp; Shares of beneficial interest issued and outstanding | 3263568 | 3486890 | 7620718 |
| &nbsp;&nbsp;&nbsp;&nbsp; Net asset value per share | $35.83 | $102.15 | $16.03 |

---

See Notes to Financial Statements

------

GREEN CENTURY FUNDS STATEMENTS OF OPERATIONS

For the six months ended January 31, 2026

&nbsp;&nbsp;&nbsp;&nbsp;(unaudited)

---

| | | | |
|:---|:---|:---|:---|
|  | BALANCED FUND | EQUITY FUND | MSCI INTERNATIONAL<br>INDEX FUND |
|  INVESTMENT INCOME: |  |  |  |
|  Interest income | $2536686 | $58 | $28 |
|  Dividend and other income (net of $4,572, $2,267 and $104,799 foreign withholding taxes, respectively) | 1365102 | 4315480 | 1260103 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total investment income | 3901788 | 4315538 | 1260131 |
|  EXPENSES: |  |  |  |
|  Administrative services fee. | 1426566 | 3210700 | 680383 |
|  Investment advisory fee | 1087018 | 780592 | 241825 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Total expenses | 2513584 | 3991292 | 922208 |
|  NET INVESTMENT INCOME | 1388204 | 324246 | 337923 |
|  NET REALIZED AND UNREALIZED GAIN (LOSS): |  |  |  |
| Net realized gain (loss) on: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Investments | 4653205 | 9416706 | 3864888 |
| &nbsp;&nbsp;&nbsp;&nbsp; Foreign currency transactions |  |  | (21216) |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward foreign currency exchange contracts |  |  | (16480) |
| Change in net unrealized appreciation on: |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Investments | 13213178 | 56215279 | 14840021 |
| &nbsp;&nbsp;&nbsp;&nbsp; Foreign currency translations |  |  | 47533 |
| &nbsp;&nbsp;&nbsp;&nbsp; Forward foreign currency exchange contracts |  |  | 23070 |
|  NET REALIZED AND UNREALIZED GAIN ON INVESTMENTS | 17866383 | 65631985 | 18737816 |
|  NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS | $19254587 | $65956231 | $19075739 |

---

See Notes to Financial Statements

------

GREEN CENTURY FUNDS STATEMENTS OF CHANGES IN NET ASSETS

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | BALANCED FUND | BALANCED FUND | EQUITY FUND | EQUITY FUND | MSCI INTERNATIONAL<br>INDEX FUND | MSCI INTERNATIONAL<br>INDEX FUND |
|  | FOR THE<br>SIX MONTHS<br>ENDED<br>JANUARY 31,<br> 2026<br>(UNAUDITED) | FOR THE<br>YEAR<br> ENDED<br> JULY 31,<br> 2025 | FOR THE<br>SIX MONTHS<br>ENDED<br>JANUARY 31,<br> 2026<br>(UNAUDITED) | FOR THE<br>YEAR<br> ENDED<br>JULY 31,<br> 2025 | FOR THE<br>SIX MONTHS<br>ENDED<br>JANUARY 31,<br> 2026<br>(UNAUDITED) | FOR THE<br>YEAR<br> ENDED<br>JULY 31,<br> 2025 |
|  INCREASE (DECREASE) IN NET ASSETS: | INCREASE (DECREASE) IN NET ASSETS: |  |  |  |  |  |
| From operations: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net investment income | $1388204 | $2332339 | $324246 | $1522887 | $337923 | $2120402 |
| &nbsp;&nbsp;&nbsp;&nbsp; Net realized gain on investments, foreign currency transactions, and forward foreign currency exchange contracts | 4653205 | 21676166 | 9416706 | 32719726 | 3827192 | 3303738 |
| &nbsp;&nbsp;&nbsp;&nbsp; Change in net unrealized appreciation (depreciation) on investments, foreign currency translations, and forward foreign currency exchange contracts | 13213178 | (6820598) | 56215279 | 57207168 | 14910624 | 2584511 |
| &nbsp;&nbsp;&nbsp;&nbsp; Net increase in net assets resulting from operations | 19254587 | 17187907 | 65956231 | 91449781 | 19075739 | 8008651 |
|  Dividends and distributions to shareholders: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Distributions |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Individual Investor Class | (11668923) | (17971643) | (16952403) | (3939790) | (1682259) | (581251) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Institutional Class | (5295771) | (8676052) | (14912656) | (4073410) | (4112313) | (1802882) |
|  Total dividends and distributions | (16964694) | (26647695) | (31865059) | (8013200) | (5794572) | (2384133) |
| Capital share transactions: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Proceeds from sales of shares |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Individual Investor Class | 7017987 | 15485499 | 10746984 | 24845947 | 4131906 | 7370303 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Institutional Class | 5565335 | 14275777 | 26740366 | 40006381 | 6063374 | 15568507 |
| &nbsp;&nbsp;&nbsp;&nbsp; Reinvestment of dividends and distributions |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Individual Investor Class | 11302701 | 17399676 | 16433642 | 3832674 | 1658898 | 573407 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Institutional Class | 5169929 | 8533611 | 13317357 | 3623012 | 4098443 | 1798549 |
| &nbsp;&nbsp;&nbsp;&nbsp; Payments for shares redeemed |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Individual Investor Class<sup>1</sup> | (21410462) | (43476004) | (26011523) | (58327551) | (4573601) | (20952274) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Institutional Class<sup>2</sup> | (9349150) | (28848986) | (27035528) | (46889214) | (14849288) | (36658848) |
| &nbsp;&nbsp;&nbsp;&nbsp; Net increase (decrease) in net assets resulting from capital share transactions | (1703660) | (16630427) | 14191298 | (32908751) | (3470268) | (32300356) |
|  Total increase (decrease) in net assets | 586233 | (26090215) | 48282470 | 50527830 | 9810899 | (26675838) |
|  NET ASSETS: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Beginning of period | 378883774 | 404973989 | 715322232 | 664794402 | 164969051 | 191644889 |
| &nbsp;&nbsp;&nbsp;&nbsp; End of period | $379470007 | $378883774 | $763604702 | $715322232 | $174779950 | $164969051 |

---

---

| | |
|:---|:---|
| 1 | Net of redemption fee received of $2,473, $4,795, $1,480, $6,084, $294 and $6,820, respectively.  |

---

---

| | |
|:---|:---|
| 2 | Net of redemption fee received of $82, $3,165, $3,166, $15,812, $339 and $11,091, respectively.  |

---

See Notes to Financial Statements

------

GREEN CENTURY BALANCED FUND INDIVIDUAL INVESTOR CLASS FINANCIAL HIGHLIGHTS

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | FOR THE SIX<br>MONTHS ENDED<br>JANUARY 31, 2026 | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, |
| | (UNAUDITED) | 2025 | 2024 | 2023 | 2022 | 2021 |
|  Net Asset Value, beginning of period | $35.51 | $36.32 | $33.46 | $32.93 | $37.21 | $30.83 |
| Income (loss) from investment operations: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net investment income (loss) | 0.11 | 0.18 | 0.17 | 0.11 | (0.01) | 0.02 |
| &nbsp;&nbsp;&nbsp;&nbsp; Net realized and unrealized gain (loss) on investments | 1.69 | 1.41 | 3.72 | 1.05 | (2.78) | 7.51 |
|  Total increase (decrease) from investment operations | 1.80 | 1.59 | 3.89 | 1.16 | (2.79) | 7.53 |
| Less dividends: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Dividends from net investment income | (0.07) | (0.18) | (0.18) | (0.09) |  | (0.02) |
| &nbsp;&nbsp;&nbsp;&nbsp; Distributions from net realized gains | (1.56) | (2.22) | (0.85) | (0.54) | (1.49) | (1.13) |
|  Total decrease from dividends | (1.63) | (2.40) | (1.03) | (0.63) | (1.49) | (1.15) |
|  Net Asset Value, end of period | $35.68 | $35.51 | $36.32 | $33.46 | $32.93 | $37.21 |
|  Total return | 5.10 %(a) | 4.64% | 11.89% | 3.67% | (7.97)% | 24.86% |
| Ratios/Supplemental data: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net assets, end of period (in 000's) | $262537 | $264050 | $280643 | $279640 | $296605 | $323991 |
| &nbsp;&nbsp;&nbsp;&nbsp; Ratio of expenses to average net assets | 1.39 %(b)(c) | 1.46% | 1.46% | 1.46% | 1.46% | 1.46% |
| &nbsp;&nbsp;&nbsp;&nbsp; Ratio of net investment income to average net assets | 0.63 %(b) | 0.50% | 0.52% | 0.35% | (0.03)% | 0.07% |
| &nbsp;&nbsp;&nbsp;&nbsp; Portfolio turnover(d) | 30 %(a) | 23% | 13% | 21% | 9% | 17% |

---

(a) Not annualized.

(b) Annualized.

(c) Effective December 1, 2025, the Adviser has contractually agreed to lower the total annual operating expenses up to 1.28%. Prior to December 1, 2025, the Adviser had contractually agreed to annual operating expenses up to 1.48%. See Note 2 for detailed expense tiers.

(d) Calculated at Fund level.

GREEN CENTURY BALANCED FUND INSTITUTIONAL CLASS FINANCIAL HIGHLIGHTS

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | FOR THE<br>SIX MONTHS ENDED<br>JANUARY 31, 2026 | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE PERIOD<br>NOVEMBER 30, 2020<br>(COMMENCEMENT<br>OF OPERATIONS) TO<br>JULY 31, |
|  | (UNAUDITED) | 2025 | 2024 | 2023 | 2022 | 2021 |
|  Net Asset Value, beginning of period | $35.64 | $36.44 | $33.56 | $33.06 | $37.27 | $33.58 |
| Income (loss) from investment operations: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net investment income | 0.17 | 0.29 | 0.29 | 0.20 | 0.08 | 0.08 |
| &nbsp;&nbsp;&nbsp;&nbsp; Net realized and unrealized gain (loss) on investments | 1.70 | 1.41 | 3.72 | 1.07 | (2.78) | 4.78 |
|  Total increase (decrease) from investment operations | 1.87 | 1.70 | 4.01 | 1.27 | (2.70) | 4.86 |
| Less dividends: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Dividends from net investment income | (0.12) | (0.28) | (0.28) | (0.23) | (0.02) | (0.04) |
| &nbsp;&nbsp;&nbsp;&nbsp; Distributions from net realized gains | (1.56) | (2.22) | (0.85) | (0.54) | (1.49) | (1.13) |
|  Total decrease from dividends | (1.68) | (2.50) | (1.13) | (0.77) | (1.51) | (1.17) |
|  Net Asset Value, end of period | $35.83 | $35.64 | $36.44 | $33.56 | $33.06 | $37.27 |
|  Total return | 5.27 %(a) | 4.94% | 12.21% | 4.01% | (7.72)% | 14.89 %(a) |
| Ratios/Supplemental data: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net assets, end of period (in 000's) | $116933 | $114833 | $124331 | $114950 | $101317 | $86347 |
| &nbsp;&nbsp;&nbsp;&nbsp; Ratio of expenses to average net assets | 1.09 %(b)(c) | 1.16% | 1.16% | 1.16% | 1.16% | 1.16 %(b) |
| &nbsp;&nbsp;&nbsp;&nbsp; Ratio of net investment income to average net assets | 0.93 %(b) | 0.80% | 0.82% | 0.65% | 0.27% | 0.33 %(b) |
| &nbsp;&nbsp;&nbsp;&nbsp; Portfolio turnover(d) | 30 %(a) | 23% | 13% | 21% | 9% | 17 %(a) |

---

(a) Not annualized.

(b) Annualized.

(c) Effective December 1, 2025, the Adviser has contractually agreed to lower the total annual operating expenses up to 0.98%. Prior to December 1, 2025, the Adviser had contractually agreed to annual operating expenses up to 1.18%. See Note 2 for detailed expense tiers.

(d) Calculated at Fund level.

See Notes to Financial Statements

------

GREEN CENTURY EQUITY FUND INDIVIDUAL INVESTOR CLASS FINANCIAL HIGHLIGHTS

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | FOR THE<br>SIX MONTHS ENDED<br>JANUARY 31, 2026 | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, |
| | (UNAUDITED) | 2025 | 2024 | 2023 | 2022 | 2021 |
|  Net Asset Value, beginning of period | $98.00 | $86.57 | $72.03 | $64.46 | $71.35 | $52.23 |
| Income from investment operations: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net investment income (loss) | (0.03) | 0.10 | 0.14 | 0.23 | 0.09 | 0.09 |
| &nbsp;&nbsp;&nbsp;&nbsp; Net realized and unrealized gain (loss) on investments | 9.05 | 12.26 | 14.53 | 7.68 | (6.11) | 19.60 |
|  Total increase (decrease) from investment operations | 9.02 | 12.36 | 14.67 | 7.91 | (6.02) | 19.69 |
| Less dividends: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Dividends from net investment income |  | (0.07) | (0.13) | (0.18) | (0.02) | (0.06) |
| &nbsp;&nbsp;&nbsp;&nbsp; Distributions from net realized gains | (4.42) | (0.86) |  | (0.16) | (0.85) | (0.51) |
|  Total decrease from dividends | (4.42) | (0.93) | (0.13) | (0.34) | (0.87) | (0.57) |
|  Net Asset Value, end of period | $102.60 | $98.00 | $86.57 | $72.03 | $64.46 | $71.35 |
|  Total return | 9.23 %(a) | 14.36% | 20.37% | 12.37% | (8.64)% | 37.90% |
| Ratios/Supplemental data: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net assets, end of period (in 000's) | $407417 | $387982 | $371751 | $314349 | $301668 | $338094 |
| &nbsp;&nbsp;&nbsp;&nbsp; Ratio of expenses to average net assets | 1.20 %(b) | 1.20% | 1.23 %(c) | 1.25% | 1.25% | 1.25% |
| &nbsp;&nbsp;&nbsp;&nbsp; Ratio of net investment income to average net assets | (0.05)%(b) | 0.09% | 0.17% | 0.35% | 0.11% | 0.14% |
| &nbsp;&nbsp;&nbsp;&nbsp; Portfolio turnover(d) | 2 %(a) | 8% | 5% | 4% | 5% | 9% |

---

(a) Not annualized.

(b) Annualized.

(c) Effective March 1, 2024, the Adviser has contractually agreed to lower the total annual operating expenses to 1.20%. Prior to March 1, 2024, the Adviser had contractually agreed to annual operating expenses of 1.25%.

(d) Calculated at Fund level.

GREEN CENTURY EQUITY FUND INSTITUTIONAL CLASS FINANCIAL HIGHLIGHTS

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | <br> FOR THE<br>SIX MONTHS ENDED<br>JANUARY 31, 2026 | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, |
|  | (UNAUDITED) | 2025 | 2024 | 2023 | 2022 | 2021 |
|  Net Asset Value, beginning of period | $97.44 | $86.07 | $71.59 | $64.13 | $71.12 | $52.10 |
| Income from investment operations: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net investment income | 0.13 | 0.35 | 0.36 | 0.42 | 0.31 | 0.30 |
| &nbsp;&nbsp;&nbsp;&nbsp; Net realized and unrealized gain (loss) on investments | 9.00 | 12.23 | 14.46 | 7.65 | (6.13) | 19.54 |
|  Total increase (decrease) from investment operations | 9.13 | 12.58 | 14.82 | 8.07 | (5.82) | 19.84 |
| Less dividends: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Dividends from net investment income |  | (0.35) | (0.34) | (0.45) | (0.32) | (0.31) |
| &nbsp;&nbsp;&nbsp;&nbsp; Distributions from net realized gains | (4.42) | (0.86) |  | (0.16) | (0.85) | (0.51) |
|  Total decrease from dividends | (4.42) | (1.21) | (0.34) | (0.61) | (1.17) | (0.82) |
|  Net Asset Value, end of period | $102.15 | $97.44 | $86.07 | $71.59 | $64.13 | $71.12 |
|  Total return | 9.39 %(a) | 14.71% | 20.72% | 12.72% | (8.38)% | 38.33% |
| Ratios/Supplemental data: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net assets, end of period (in 000's) | $356187 | $327340 | $293044 | $243539 | $213705 | $178038 |
| &nbsp;&nbsp;&nbsp;&nbsp; Ratio of expenses to average net assets | 0.90 %(b) | 0.90% | 0.93 %(c) | 0.95% | 0.95% | 0.95% |
| &nbsp;&nbsp;&nbsp;&nbsp; Ratio of net investment income to average net assets | 0.25 %(b) | 0.39% | 0.47% | 0.65% | 0.41% | 0.44% |
| &nbsp;&nbsp;&nbsp;&nbsp; Portfolio turnover(d) | 2 %(a) | 8% | 5% | 4% | 5% | 9% |

---

(a) Not annualized.

(b) Annualized.

(c) Effective March 1, 2024, the Adviser has contractually agreed to lower the total annual operating expenses to 0.90%. Prior to March 1, 2024, the Adviser had contractually agreed to annual operating expenses of 0.95%.

(d) Calculated at Fund level.

See Notes to Financial Statements

------

GREEN CENTURY MSCI INTERNATIONAL INDEX FUND INDIVIDUAL INVESTOR CLASS FINANCIAL HIGHLIGHTS

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | FOR THE<br>SIX MONTHS ENDED<br>JANUARY 31, 2026 | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, |
| | (UNAUDITED) | 2025 | 2024 | 2023 | 2022 | 2021 |
|  Net Asset Value, beginning of period | $14.90 | $14.36 | $13.07 | $11.82 | $14.94 | $11.68 |
| Income (loss) from investment operations: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net investment income | 0.02 | 0.16 | 0.15 | 0.16 | 0.19 | 0.09 |
| &nbsp;&nbsp;&nbsp;&nbsp; Net realized and unrealized gain (loss) on investments | 1.71 | 0.55 | 1.30 | 1.23 | (2.87) | 3.27 |
|  Total increase (decrease) from investment operations | 1.73 | 0.71 | 1.45 | 1.39 | (2.68) | 3.36 |
| Less dividends: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Dividends from net investment income | (0.32) | (0.17) | (0.16) | (0.14) | (0.18) | (0.10) |
| &nbsp;&nbsp;&nbsp;&nbsp; Distributions from net realized gains | (0.21) |  |  |  | (0.26) |  |
|  Total decrease from dividends | (0.53) | (0.17) | (0.16) | (0.14) | (0.44) | (0.10) |
|  Net Asset Value, end of period | $16.10 | $14.90 | $14.36 | $13.07 | $11.82 | $14.94 |
|  Total return | 11.72 %(a) | 4.96% | 11.11% | 11.83% | (18.36)% | 28.76% |
| Ratios/Supplemental data: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net assets, end of period (in 000's) | $52596 | $47506 | $58855 | $52275 | $47435 | $46508 |
| &nbsp;&nbsp;&nbsp;&nbsp; Ratio of expenses to average net assets | 1.28 %(b) | 1.28% | 1.28% | 1.28% | 1.28% | 1.28% |
| &nbsp;&nbsp;&nbsp;&nbsp; Ratio of net investment income to average net assets | 0.18 %(b) | 0.99% | 1.15% | 1.34% | 1.55% | 0.77% |
| &nbsp;&nbsp;&nbsp;&nbsp; Portfolio turnover(c) | 8 %(a) | 20% | 29% | 42% | 29% | 31% |

---

(a) Not annualized.

(b) Annualized.

(c) Calculated at Fund level.

GREEN CENTURY MSCI INTERNATIONAL INDEX FUND INSTITUTIONAL CLASS FINANCIAL HIGHLIGHTS

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
|  | FOR THE<br>SIX MONTHS ENDED<br>JANUARY 31, 2026 | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, | FOR THE YEARS ENDED JULY 31, |
|  | (UNAUDITED) | 2025 | 2024 | 2023 | 2022 | 2021 |
|  Net Asset Value, beginning of period | $14.83 | $14.30 | $13.01 | $11.78 | $14.90 | $11.66 |
| Income (loss) from investment operations: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net investment income | 0.04 | 0.19 | 0.18 | 0.19 | 0.24 | 0.13 |
| &nbsp;&nbsp;&nbsp;&nbsp; Net realized and unrealized gain (loss) on investments | 1.71 | 0.56 | 1.30 | 1.23 | (2.86) | 3.26 |
|  Total increase (decrease) from investment operations | 1.75 | 0.75 | 1.48 | 1.42 | (2.62) | 3.39 |
| Less dividends: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Dividends from net investment income | (0.34) | (0.22) | (0.19) | (0.19) | (0.24) | (0.15) |
| &nbsp;&nbsp;&nbsp;&nbsp; Distributions from net realized gains | (0.21) |  |  |  | (0.26) |  |
|  Total decrease from dividends | (0.55) | (0.22) | (0.19) | (0.19) | (0.50) | (0.15) |
|  Net Asset Value, end of period | $16.03 | $14.83 | $14.30 | $13.01 | $11.78 | $14.90 |
|  Total return | 11.91 %(a) | 5.24% | 11.46% | 12.15% | (18.05)% | 29.09% |
| Ratios/Supplemental data: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; Net assets, end of period (in 000's) | $122184 | $117463 | $132790 | $135514 | $115620 | $112002 |
| &nbsp;&nbsp;&nbsp;&nbsp; Ratio of expenses to average net assets | 0.98 %(b) | 0.98% | 0.98% | 0.98% | 0.98% | 0.98% |
| &nbsp;&nbsp;&nbsp;&nbsp; Ratio of net investment income to average net assets | 0.48 %(b) | 1.29% | 1.45% | 1.64% | 1.85% | 1.07% |
| &nbsp;&nbsp;&nbsp;&nbsp; Portfolio turnover(c) | 8 %(a) | 20% | 29% | 42% | 29% | 31% |

---

(a) Not annualized.

(b) Annualized.

(c) Calculated at Fund level.

See Notes to Financial Statements

------

GREEN CENTURY FUNDS NOTES TO FINANCIAL STATEMENTS &nbsp;&nbsp;&nbsp;&nbsp;(unaudited)

NOTE 1 — Organization and Significant Accounting Policies

Green Century Funds (the "Trust") is a Massachusetts business trust which offers three separate series, the Green Century Balanced Fund (the "Balanced Fund"), the Green Century Equity Fund (the "Equity Fund") and the Green Century MSCI International Index Fund (the "MSCI International Index Fund"), each a "Fund" and collectively, the "Funds". The Trust is registered under the Investment Company Act of 1940, as amended (the "Act"), as an open-end, diversified management investment company. The Trust accounts separately for the assets, liabilities and operations of each series. The Balanced Fund Investor Share Class commenced operations on March 18, 1992, the Balanced Fund Institutional Share Class commenced operations on November 30, 2020, the Equity Fund Individual Investor Share Class commenced operations on September 13, 1995, the Equity Fund Institutional Share Class commenced operations on April 30, 2018, and the Individual Investor Share Class and Institutional Share Class of the MSCI International Index Fund commenced operations on September 30, 2016.

The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("U.S. GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Each Fund is an investment company and accordingly follows the investment company accounting and reporting guidance of the Financial Accounting Standards Board (the "FASB") Accounting Standard Codification Topic 946 "Financial Services — Investment Companies".

The following is a summary of the Funds' significant accounting policies:

(A) **Investment Valuation:** Equity securities listed on U.S. national securities exchanges other than NASDAQ are valued at last sale price. If a last sale price is not available, securities listed on U.S. national exchanges other than NASDAQ are valued at the mean between the closing bid and closing ask prices. NASDAQ National Market<sup>®</sup> and SmallCapSM securities are valued at the NASDAQ Official Closing Price ("NOCP"). The NOCP is based on the last traded price if it falls within the concurrent best bid and ask prices and is normalized pursuant to NASDAQ's published procedures if it falls outside this range. If a NOCP is not available for any such security, the security is valued at the last sale price, or, if there have been no sales that day, at the mean between the closing bid and closing ask prices. Unlisted U.S. equity securities are valued at last sale price, or when last sale prices are not available, at the last quoted bid price. Debt securities (other than certificates of deposit and short-term obligations maturing in sixty days or less) are valued on the basis of valuations furnished by an independent pricing service which takes into account appropriate factors such as institution-size trading in similar groups of securities, yield, quality, coupon rate, maturity, type of issue, and other market data, without exclusive reliance on quoted prices, exchange or over-the-counter prices. Certificates of deposit are valued at cost plus accrued interest, and short-term obligations maturing in sixty days or less are valued at amortized cost, both of which approximate fair value. Securities, if any, for which there are no such valuations or quotations available, or for which the market quotation or valuation provided by a pricing service is deemed not reliable, are valued at fair value by management as determined in good faith under guidelines established by the Trustees. Effective September 8, 2022, pursuant to Rule 2a-5 under the

------

GREEN CENTURY FUNDS NOTES TO FINANCIAL STATEMENTS &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

1940 Act, the Board of Trustees has designated Green Century Capital Management, Inc. ("GCCM") as a valuation designee (the "Valuation Designee") to determine the fair value, in good faith, of securities and other instruments for which no readily available market quotation exists. As Valuation Designee, GCCM is responsible for the supervision and implementation of the valuation process with respect to the Funds, subject to the Board's oversight. GCCM will, among other things, (1) assess and manage material risks associated with fair value determinations; (2) select, apply and test fair value methodologies; and (3) oversee and evaluate pricing services used.

For non-U.S. securities traded in foreign markets, the MSCI International Index Fund uses a fair value model developed by an independent pricing service to assist in valuing those securities. If an event occurs after the time at which the market for foreign securities held by the Fund closes but before the time that the Fund's next NAV is calculated, such event may cause the closing price on the foreign exchange to not represent the readily available reliable market value quotation for such securities at the time the Fund determines its NAV. In such a case, the Fund will use the fair value of such securities as determined under the Fund's valuation procedures. Events after the close of trading on a foreign market that could require a Fund to fair value some or all of its foreign securities include, among others, securities trading in the U.S. and other markets, corporate announcements, natural and other disasters, and political and other events. Among other elements of analysis in the determination of a security's fair value, the Board has authorized the use of one or more independent research services to assist with such determinations. An independent research service may use statistical analyses and quantitative models to help determine fair value as of the time the Fund calculates its NAV. There can be no assurance that such models accurately reflect the behavior of the applicable markets or the effect of the behavior of such markets on the fair value of securities, or that such markets will continue to behave in a fashion that is consistent with such models. Unlike the closing price of a security on an exchange, fair value determinations employ elements of judgment. Consequently, the fair value assigned to a security may not represent the actual value that the Fund could obtain if it were to sell the security at the time of the close of the NYSE. Pursuant to procedures adopted by the Board, the Fund is not obligated to use the fair valuations suggested by any research service, and valuation recommendations provided by such research services may be overridden if other events have occurred or if other fair valuations are determined in good faith to be more accurate. Unless an event is such that it causes the Fund to determine that the closing prices for one or more securities do not represent readily available reliable market value quotations at the time the Fund determines its NAV, events that occur between the time of the close of the foreign market on which they are traded and the close of regular trading on the NYSE will not be reflected in the Fund's NAV.

In accordance with U.S. GAAP, fair value is defined as the price that each Fund would receive to sell an investment or pay to transfer a liability in an orderly transaction with an independent buyer in the principal market, or in the absence of a principal market the most advantageous market for the investment or liability. Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels listed below:

Level 1 — quoted prices for active markets for identical securities. An active market for the security is a market in which transactions occur with sufficient frequency and volume to provide pricing information on an ongoing basis. A quoted price in an active market provides the most reliable evidence of fair value.

Level 2 — other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.). Examples of level 2 inputs include 1) quoted prices for identical or similar assets in markets that are not active 2) investments valued at amortized cost and 3) investments valued with inputs that are derived principally from or corroborated by observable market data. An adjustment to any observable input that is significant to the fair value may render the measurement a Level 3 measurement.

Level 3 — significant unobservable inputs, including the Funds' own assumptions in determining the fair value of investments.

------

GREEN CENTURY FUNDS NOTES TO FINANCIAL STATEMENTS &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

In some cases, the inputs used to measure the fair value of an asset or a liability might be categorized within different levels of the fair value hierarchy. In those cases, the fair value measurement is categorized in its entirety in the same level of the fair value hierarchy as the lowest level input that is significant to the entire measurement. The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.

The following is a summary of the inputs used to value the Balanced Fund's net assets as of January 31, 2026:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | LEVEL 1 | LEVEL 2 | LEVEL 3 | TOTAL |
|  COMMON STOCKS | $249270507 | $— | $— | $249270507 |
|  BONDS & NOTES |  | 128149742 |  | 128149742 |
|  SHORT-TERM OBLIGATIONS | 2276908 |  |  | 2276908 |
|  TOTAL | $251547415 | $128149742 | $— | $379697157 |

---

The following is a summary of the inputs used to value the Equity Fund's net assets as of January 31, 2026:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | LEVEL 1 | LEVEL 2 | LEVEL 3 | TOTAL |
|  COMMON STOCKS | $760905101 | $— | $— | $760905101 |
|  SHORT-TERM OBLIGATIONS | 2655359 |  |  | 2655359 |
|  TOTAL | $763560460 | $— | $— | $763560460 |

---

------

GREEN CENTURY FUNDS NOTES TO FINANCIAL STATEMENTS &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

The following is a summary of the inputs used to value the MSCI International Index Fund's net assets as of January 31, 2026:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | LEVEL 1 | LEVEL 2 | LEVEL 3 | TOTAL |
| COMMON STOCK |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; JAPAN | $584661 | $38627470 | $— | $39212131 |
| &nbsp;&nbsp;&nbsp;&nbsp; SWITZERLAND |  | 19554844 |  | 19554844 |
| &nbsp;&nbsp;&nbsp;&nbsp; CANADA | 18593422 |  |  | 18593422 |
| &nbsp;&nbsp;&nbsp;&nbsp; NETHERLANDS |  | 17422132 |  | 17422132 |
| &nbsp;&nbsp;&nbsp;&nbsp; FRANCE |  | 16974094 |  | 16974094 |
| &nbsp;&nbsp;&nbsp;&nbsp; UNITED KINGDOM |  | 14889683 |  | 14889683 |
| &nbsp;&nbsp;&nbsp;&nbsp; DENMARK |  | 9230089 |  | 9230089 |
| &nbsp;&nbsp;&nbsp;&nbsp; AUSTRALIA |  | 9058945 |  | 9058945 |
| &nbsp;&nbsp;&nbsp;&nbsp; GERMANY |  | 5499457 |  | 5499457 |
| &nbsp;&nbsp;&nbsp;&nbsp; SWEDEN |  | 5353683 |  | 5353683 |
| &nbsp;&nbsp;&nbsp;&nbsp; HONG KONG |  | 4126487 |  | 4126487 |
| &nbsp;&nbsp;&nbsp;&nbsp; SPAIN |  | 3180732 |  | 3180732 |
| &nbsp;&nbsp;&nbsp;&nbsp; FINLAND |  | 3062792 |  | 3062792 |
| &nbsp;&nbsp;&nbsp;&nbsp; ITALY |  | 2513099 |  | 2513099 |
| &nbsp;&nbsp;&nbsp;&nbsp; NORWAY | 334867 | 1642869 |  | 1977736 |
| &nbsp;&nbsp;&nbsp;&nbsp; BELGIUM |  | 1411078 |  | 1411078 |
| &nbsp;&nbsp;&nbsp;&nbsp; IRELAND |  | 474791 |  | 474791 |
| &nbsp;&nbsp;&nbsp;&nbsp; LUXEMBOURG |  | 446643 |  | 446643 |
| &nbsp;&nbsp;&nbsp;&nbsp; SINGAPORE |  | 185484 |  | 185484 |
| &nbsp;&nbsp;&nbsp;&nbsp; NEW ZEALAND |  | 149649 |  | 149649 |
| TOTAL COMMON STOCK | 19512950 | 153804021 |  | 173316971 |
| SHORT-TERM INVESTMENTS | 312663 |  |  | 312663 |
| TOTAL | $19825613 | $153804021 | $— | $173629634 |
| OTHER FINANCIAL INSTRUMENTS\* |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp; FORWARD CONTRACTS | $— | $3290 | $— | $3290 |
| TOTAL OTHER FINANCIAL INSTRUMENTS | $— | $3290 | $— | $3290 |

---

\* Other financial instruments are derivative instruments such as forward contracts. Forward contracts are valued at the unrealized appreciation (depreciation) on the instrument.

There were no transfers into or out of Level 3 during the reporting period.

(B) **Securities Transactions and Investment Income:** Securities transactions are recorded on a trade date basis. Realized gains and losses from securities transactions are determined using the identified cost basis. Interest income, including amortization of premiums and accretion of discounts on bonds, is recognized on the accrual basis and dividend income is recorded on ex-dividend date. Income, expenses and realized and unrealized gains and losses on investments are allocated to each class of shares in proportion to their relative shares outstanding.

------

GREEN CENTURY FUNDS NOTES TO FINANCIAL STATEMENTS &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

(C) **Currency Translations and Contracts:** Securities and other assets and liabilities denominated in foreign currencies are translated into U.S. dollar amounts on the date of valuation. Purchases and sales of securities, and income and expense items denominated in foreign currencies, are translated into U.S. dollar amounts on the respective dates of such transactions. Occasionally, events impact the availability or reliability of foreign exchange rates used to convert the U.S. dollar equivalent value. If such an event occurs, the foreign exchange rate will be valued at fair value using procedures established and approved by the Board of Trustees. The Funds do not separately report the effect of fluctuations in foreign exchange rates from changes in market prices on securities held. Such fluctuations are included with the net realized and unrealized gain or loss from investments. Realized foreign exchange gains or losses arise from sales of foreign currencies, currency gains or losses realized between the trade and settlement dates on securities transactions, and the difference between the recorded amounts of dividends, interest, and foreign withholding taxes and the U.S. dollar equivalent of the amounts actually received or paid. Net unrealized foreign exchange gains and losses arise from changes in fair value of assets and liabilities other than investments in securities held at the end of the reporting period, resulting from changes in exchange rates. When a Fund purchases or sells foreign securities, it enters into foreign exchange contracts to minimize foreign exchange risk from the trade date to the settlement date of the transactions. A foreign exchange contract is an agreement between two parties to exchange different currencies at an agreed-upon exchange rate on a specified date. The MSCI International Index Fund held open foreign currency spot contracts outstanding as of January 31, 2026 that are not considered investments. The MSCI International Index Fund held forward foreign currency exchange contracts ("Forward Contracts") as of January 31, 2026 displayed in the Portfolio of Investments.

Cash, including cash denominated in foreign currencies, represents cash on hand held at major financial institutions and is subject to credit risk to the extent the balance exceeds applicable Federal Deposit Insurance Corporation (FDIC) or Securities Investor Protection Corporation (SIPC) limitations.

(D) **Distributions:** Distributions to shareholders are recorded on the ex-dividend date. The Funds declare and pay dividends of net investment income, if any, semi-annually and distribute net realized capital gains, if any, annually. The amount and character of income and net realized gains to be distributed are determined in accordance with Federal income tax rules and regulations, which may differ from U.S. GAAP. To the extent that these differences are attributable to permanent book and tax accounting differences, the components of net assets have been adjusted.

(E) **Federal Taxes:** Each series of the Trust is treated as a separate entity for Federal income tax purposes. Each Fund's policy is to comply with the provisions of the Internal Revenue Code applicable to regulated investment companies ("RICs"). Accordingly, no provisions for Federal income or excise tax are necessary.

U.S. GAAP requires that all entities, including pass-through entities such as the Funds, establish a minimum threshold for financial statement recognition of the benefit of positions taken in filing tax returns (including whether an entity is taxable in a particular jurisdiction). The Funds recognize tax benefits only if it is more likely than not that a tax position (including the Funds' assertion that their income is exempt from tax) will be sustained upon examination. The Funds had no material uncertain tax positions and have not recorded a liability for unrecognized tax benefits as of January 31, 2026. Also, the Funds had recognized no interest and penalties related to uncertain tax benefits through January 31, 2026. At January 31, 2026, the tax years 2022 through 2025 remain open to examination by the Internal Revenue Service.

(F) **Redemption Fee:** A 2.00% redemption fee is retained by the Funds to offset the effect of transaction costs and other expenses associated with short-term investing. The fee is imposed on redemptions or exchanges of shares held 60 days or less from their purchase date. For the six months ended January 31, 2026, the Balanced Fund, Equity Fund and MSCI International Index Fund received $2,555, $4,646, and $633 respectively, in redemption fees. Redemption fees are recorded as an adjustment to paid-in capital.

------

GREEN CENTURY FUNDS NOTES TO FINANCIAL STATEMENTS &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

(G) **Indemnification:** The Funds' organizational documents provide that trustees and officers are indemnified against certain liabilities arising out of the performance of their duties to the Funds. In the normal course of business, the Funds may also enter into contracts that provide general indemnifications. The Funds' maximum exposure under these arrangements is unknown as this would be dependent on future claims that may be made against the Funds. The risk of material loss from such claims is considered remote. As of January 31, 2026, no liability has been accrued.

(H) **Offsetting of Assets and Liabilities:** As of January 31, 2026, there are no master netting arrangements related to the Funds. The Funds' Statements of Assets and Liabilities present derivative instruments on a gross basis, if applicable. As of January 31, 2026, no derivative instruments with master netting arrangements were held by the Funds.

NOTE 2 — Transactions With Affiliates

(A) **Investment Adviser:** GCCM is the adviser ("the Adviser") for the Funds. Green Century is owned by Paradigm Partners. Green Century oversees the portfolio management of the Funds on a day-to-day basis. Green Century's investment advisory fee paid by the Balanced Fund shall be equal on an annual basis to 0.45% of the value of the average daily net assets of the Fund up to but not including $150 million, 0.42% of the average daily net assets of the Fund from and including $150 million up to but not including $300 million, 0.38% of the average daily net assets of the Fund from and including $300 million up to but not including $1 billion, and 0.36% of the average daily net assets of the Fund equal to or in excess of $1 billion, accrued daily and paid monthly. Prior to December 1, 2025, Green Century's investment advisory fee paid by the Balanced Fund was 0.65% of the average daily net assets of the Fund up to $250 million and 0.60% of the value of the average daily net assets of the Fund in excess of $250 million. The Equity Fund pays Green Century a fee, accrued daily and paid monthly, at an annual rate of 0.25% of the Equity Fund's average daily net assets up to but not including $100 million, 0.22% of average daily net assets including $100 million up to but not including $500 million, 0.17% of average daily net assets including $500 million up to but not including $1 billion and 0.12% of average daily net assets equal to or in excess of $1 billion. The MSCI International Index Fund pays Green Century a fee, accrued daily and paid monthly, at an annual rate of 0.28% of the MSCI International Index Fund's average daily net assets.

(B) **Subadvisers:** Northern Trust Investments, Inc. ("Northern Trust") is the subadviser for the Funds. Northern Trust's investment subadvisory fee with respect to the Balanced Fund shall be equal on an annual basis to the greater of $100,000 or 0.15% of the value of the average daily net assets of the Fund up to but not including $150 million, 0.12% of the average daily net assets of the Fund from and including $150 million up to but not including $300 million, 0.08% of the average daily net assets of the Fund from and including $300 million up to but not including $1 billion and 0.06% of the average daily assets of the Fund equal to or in excess of $1 billion. Prior to December 1, 2025, Trillium Asset Management, LLC ("Trillium") was the subadviser for the Balanced Fund. Trillium's investment subadvisory fee with respect to the Fund was on an annual basis equal to 0.40% of the value of the average daily net assets of the Fund up to $30 million, 0.35% of the value of the average daily net assets of the Fund in excess of $30 million up to $250 million, and 0.30% of the value of the average daily net assets of the Fund in excess of $250 million. For the six months ended January 31, 2026, Green Century accrued fees of $432,212 to Trillium. For the Equity Fund, Northern Trust is paid a fee by the Adviser based on Northern Trust's fee schedule of the greater of $75,000 or 0.10% of the value of the average daily net assets of the Fund up to but not including $50 million, 0.05% of the average daily net assets of the Fund from and including $50 million up to but not including $100 million and 0.03% of the average daily net assets of the Fund equal to or in excess of $100 million for its services. For the MSCI International Index Fund, Northern Trust is

------

GREEN CENTURY FUNDS NOTES TO FINANCIAL STATEMENTS &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

paid a fee by the Adviser based on Northern Trust's fee schedule of the greater of $100,000 or 0.17% of the value of the average daily net assets of the Fund up to but not including $50 million, 0.12% of the average daily net assets of the Fund from and including $50 million up to but not including $100 million and 0.08% of the average daily net assets of the Fund equal to or in excess of $100 million for its services. For the six months ended January 31, 2026, Green Century accrued fees of $79,890, $135,521 and $101,849 to Northern Trust for the Balanced Fund, Equity Fund and the MSCI International Index Fund, respectively.

(C) **Administrator:** Green Century is the administrator ("the Administrator") of the Green Century Funds. Pursuant to the Administrative Services Agreement, Green Century pays all the expenses of each Fund other than the investment advisory fees; interest; taxes; brokerage costs and other capital expenses; expenses of non-interested trustees (including counsel fees) and any extraordinary expenses. The Balanced Fund pays Green Century a fee at a rate such that immediately following any payment to the Administrator, the total operating expenses of the Fund, on an annual basis, do not exceed 1.28% of the Fund's Individual Investor Class average daily net assets up to but not including $150 million, 1.25% of the value of the average daily net assets of the Fund from and including $150 million up to but not including $300 million, 1.21% of the value of the average daily net assets of the Fund from and including $300 million up to but not including $1 billion and 1.19% of the Fund's Individual Investor Class average daily net assets including and in excess of $1 billion, and 0.98% of the Fund's Institutional Class average daily net assets up to but not including $150 million, 0.95% of the value of the average daily net assets of the Fund from and including $150 million up to but not including $300 million, 0.91% of the value of the average daily net assets of the Fund from and including $300 million up to but not including $1 billion and 0.89% of the Fund's Institutional Class average daily net assets up to and in excess of $1 billion. Prior to December 1, 2025, the Balanced Fund paid Green Century a fee at a rate such that immediately following any payment to the Administrator, the total operating expenses of the Fund, on an annual basis, did not exceed 1.48% of the Fund's Individual Investor Class average daily net assets up to and including $250 million and 1.43% of the Fund's Individual Investor Class average daily net assets in excess of $250 million, and 1.18% of the Fund's Institutional Class average daily net assets up to and including $250 million and 1.13% of the Fund's Institutional Class average daily net assets in excess of $250 million. The Equity Fund pays Green Century a fee at a rate such that immediately following any payment to the Administrator, the total operating expenses of the Fund, on an annual basis, do not exceed 1.20% of the Fund's Individual Investor Class average daily net assets, and 0.90% of the Fund's Institutional Class average daily net assets. Prior to March 1, 2024, the Equity Fund paid Green Century a fee at a rate such that immediately following any payment to the Administrator, the total operating expenses of the Fund, on an annual basis, did not exceed 1.25% of the Fund's Individual Investor Class average daily net assets, and 0.95% of the Fund's Institutional Class average daily net assets. The MSCI International Index Fund pays Green Century a fee at a rate such that immediately following any payment to the Administrator, the total operating expenses of the Fund, on an annual basis, do not exceed 1.28% of the Fund's Individual Investor Class average daily net assets, and 0.98% of the Fund's Institutional Class average daily net assets.

(D) **Subadministrator:** Pursuant to a Subadministrative and Fund Accounting Services Agreement with the Administrator, UMB Fund Services, Inc. ("UMBFS") as Subadministrator and Fund Accountant, is responsible for conducting fund accounting and certain day-to-day administration of the Trust subject to the supervision and direction of the Administrator. For the six months ended January 31, 2026, Green Century accrued fees of $129,174, $220,583, and $72,736 to UMBFS related to services performed on behalf of the Balanced Fund, the Equity Fund, and the MSCI International Index Fund, respectively.

------

GREEN CENTURY FUNDS NOTES TO FINANCIAL STATEMENTS &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

(E) **Index Agreements:** The Equity Fund invests in the securities of the companies included in the MSCI KLD 400 Social ex Fossil Fuels Index (the "KLD Index"). The Index is owned and maintained by MSCI ESG Research ("MSCI"). For the use of the KLD Index for the Equity Fund, MSCI is paid by the Adviser an annual license fee of $31,903, plus the greater of $26,000 or at an annual rate of 0.05% on the first $100 million of average daily net assets, 0.04% on the next $100 million of average daily net assets, and 0.03% on average daily net assets in excess of $200 million. The MSCI International Index Fund invests in the securities included in the MSCI World ex USA SRI ex Fossil Fuels Index (the "World Index"). The Index is owned and maintained by MSCI. For the use of the World Index for the MSCI International Index Fund, MSCI is paid by the Adviser an annual license fee of $33,681, plus the greater of $25,000 or at an annual rate of 0.05% on the first $100 million of average daily net assets, 0.04% on the next $100 million of average daily net assets, and 0.03% on average daily net assets in excess of $200 million. For the six months ended January 31, 2026, Green Century accrued fees of $143,377 and $55,955 to MSCI for the Equity Fund and MSCI International Index Fund, respectively.

NOTE 3 — Investment Transactions

For the six months ended January 31, 2026, the Balanced Fund's cost of purchases and proceeds from sales of securities, other than short-term securities, aggregated $112,397,890 and $128,606,287 respectively. The Equity Fund's cost of purchases and proceeds from sales of securities, other than short-term securities, aggregated $18,387,090 and $37,437,681, respectively. The MSCI International Index Fund's cost of purchases and proceeds from sales of securities, other than short-term securities, aggregated $12,975,618 and $21,138,213, respectively.

NOTE 4 — Federal Income Tax Information

The tax basis of the components of distributable net earnings (deficit) at July 31, 2025 were as follows:

---

| | | | |
|:---|:---|:---|:---|
|  | BALANCED FUND | EQUITY FUND | MSCI INTERNATIONAL<br>INDEX FUND |
|  Undistributed ordinary income | $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;87285 | $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;— | $1066937 |
|  Undistributed long-term capital gains | 16073479 | 26380114 | 1966749 |
|  Tax accumulated earnings | 16160764 | 26380114 | 3063686 |
|  Accumulated capital and other losses | (716749) | (199675) |  |
|  Unrealized appreciation (depreciation) | 117604621 | 461738025 | 35044082 |
|  Foreign currency translations |  |  | 86142 |
|  Distributable net earnings (deficit) | $133048636 | $487918464 | $38193910 |

---

Losses incurred after October 31 ("post-October" losses) within the taxable year are deemed to arise on the first day of the Fund's next taxable year.

As of July 31, 2025, the Balanced Fund and Equity Fund had $716,749 and $199,675 respectively of post-October capital losses which are deferred until August 1, 2025 for tax purposes.

To the extent that the Fund realizes future net capital gains, those gains will be offset by any unused capital loss carryforwards.

------

GREEN CENTURY FUNDS NOTES TO FINANCIAL STATEMENTS &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

The tax character of distributions paid during the fiscal year ended July 31, 2025 and the year ended July 31, 2024 were as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
|  | BALANCED FUND | BALANCED FUND | EQUITY FUND | EQUITY FUND |
|  | YEAR ENDED<br>JULY 31, 2025 | YEAR ENDED<br>JULY 31, 2024 | YEAR ENDED<br>JULY 31, 2025 | YEAR ENDED<br>JULY 31, 2024 |
|  Ordinary income | $5170119 | $3113789 | $1540832 | $1688009 |
|  Long-term capital gains | 21477576 | 8722533 | 6472368 |  |
|  | MSCI INTERNATIONAL INDEX<br>FUND | MSCI INTERNATIONAL INDEX<br>FUND |  |  |
|  | YEAR ENDED<br>JULY 31, 2025 | YEAR ENDED<br>JULY 31, 2024 |  |  |
|  Ordinary income | $2384133 | $2688660 |  |  |
|  Long-term capital gains |  |  |  |  |

---

NOTE 5 — Capital Share Transactions

Capital Share transactions for the Balanced Fund, the Equity Fund and the MSCI International Index Fund were as follows:

---

| | | |
|:---|:---|:---|
|  | BALANCED FUND<br>INDIVIDUAL INVESTOR CLASS | BALANCED FUND<br>INDIVIDUAL INVESTOR CLASS |
|  | SIX MONTHS ENDED<br>JANUARY 31, 2026 | YEAR ENDED<br>JULY 31, 2025 |
|  Shares sold | 192130 | 437926 |
|  Reinvestment of dividends | 317759 | 507012 |
|  Shares redeemed | (588339) | (1235201) |
|  | (78450) | (290263) |
|  | BALANCED FUND<br>INSTITUTIONAL CLASS | BALANCED FUND<br>INSTITUTIONAL CLASS |
|  | SIX MONTHS ENDED<br>JANUARY 31, 2026 | YEAR ENDED<br>JULY 31, 2025 |
|  Shares sold | 152034 | 396324 |
|  Reinvestment of dividends | 144775 | 247674 |
|  Shares redeemed | (255152) | (833994) |
|  | 41657 | (189996) |
|  | EQUITY FUND<br>INDIVIDUAL INVESTOR CLASS | EQUITY FUND<br>INDIVIDUAL INVESTOR CLASS |
|  | SIX MONTHS ENDED<br>JANUARY 31, 2026 | YEAR ENDED<br> JULY 31, 2025 |
|  Shares sold | 104556 | 276387 |
|  Reinvestment of dividends | 160893 | 41978 |
|  Shares redeemed | (253416) | (653989) |
|  | 12033 | (335624) |

---

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GREEN CENTURY FUNDS NOTES TO FINANCIAL STATEMENTS &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

---

| | | |
|:---|:---|:---|
|  | EQUITY FUND<br>INSTITUTIONAL CLASS | EQUITY FUND<br>INSTITUTIONAL CLASS |
|  | SIX MONTHS ENDED<br>JANUARY 31, 2026 | YEAR ENDED<br> JULY 31, 2025 |
|  Shares sold | 260965 | 444714 |
|  Reinvestment of dividends | 130986 | 39722 |
|  Shares redeemed | (264318) | (530007) |
|  | 127633 | (45571) |
|  | MSCI INTERNATIONAL INDEX<br>INDIVIDUAL INVESTOR CLASS | MSCI INTERNATIONAL INDEX<br>INDIVIDUAL INVESTOR CLASS |
|  | SIX MONTHS ENDED<br>JANUARY 31, 2026 | YEAR ENDED<br> JULY 31, 2025 |
|  Shares sold | 261930 | 509228 |
|  Reinvestment of dividends | 106203 | 39172 |
|  Shares redeemed | (290479) | (1457506) |
|  | 77654 | (909106) |
|  | MSCI INTERNATIONAL INDEX<br>INSTITUTIONAL CLASS | MSCI INTERNATIONAL INDEX<br>INSTITUTIONAL CLASS |
|  | SIX MONTHS ENDED<br>JANUARY 31, 2026 | YEAR ENDED<br> JULY 31, 2025 |
|  Shares sold | 386550 | 1058859 |
|  Reinvestment of dividends | 263565 | 123073 |
|  Shares redeemed | (949023) | (2547427) |
|  | (298908) | (1365495) |

---

Note 6 — Derivative and Hedging Disclosure

Derivatives and Hedging requires enhanced disclosures about the Funds' derivative and hedging activities, including how such activities are accounted for and their effects on the Funds' financial position and performance. The MSCI International Index Fund invested in forward foreign currency exchange contracts during the six months ended January 31, 2026.

------

GREEN CENTURY FUNDS NOTES TO FINANCIAL STATEMENTS &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) continued

The effects of these derivative instruments on the Fund's financial position and financial performance as reflected in the Statements of Assets and Liabilities and Statements of Operations are presented in the tables below. The fair values of derivative instruments, as of January 31, 2026, by risk category are as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| MSCI INTERNATIONAL INDEX | MSCI INTERNATIONAL INDEX | MSCI INTERNATIONAL INDEX | MSCI INTERNATIONAL INDEX | MSCI INTERNATIONAL INDEX |
|  | Asset Derivatives | Asset Derivatives | Liability Derivatives | Liability Derivatives |
| Derivatives designated as hedging instruments | Statements of Assets<br>and Liabilities | Value | Statements of Assets<br>and Liabilities | Value |
|  Foreign Exchange Contract | Unrealized<br>appreciation<br>on forward<br>foreign<br>currency<br>exchange<br>contracts | $&nbsp;&nbsp;&nbsp;&nbsp;14072 | Unrealized<br>depreciation<br>on forward<br>foreign<br>currency<br>exchange<br>contracts | $&nbsp;&nbsp;&nbsp;&nbsp;10782 |

---

The effects of derivative instruments on the Statements of Operations for the six month ended January 31, 2026, are as follows:

---

| | |
|:---|:---|
| MSCI INTERNATIONAL INDEX | MSCI INTERNATIONAL INDEX |
| Amount of Realized Gain or (Loss) on Derivatives Recognized in the Statements of Operations | Amount of Realized Gain or (Loss) on Derivatives Recognized in the Statements of Operations |
| Derivatives not designated as hedging instruments | Forward Contracts |
|  Foreign exchange contracts | $(16480) |
| MSCI INTERNATIONAL INDEX | MSCI INTERNATIONAL INDEX |
| Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in the Statements of Operations | Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in the Statements of Operations |
| Derivatives not designated as hedging instruments | Forward Contracts |
|  Foreign exchange contracts | $23070 |

---

The average quarterly volume of derivative instruments held by the Funds during the six months ended January 31, 2026 are as follows:

---

| | | |
|:---|:---|:---|
| MSCI INTERNATIONAL INDEX | MSCI INTERNATIONAL INDEX | MSCI INTERNATIONAL INDEX |
|  |  | Forward Contracts |
|  Foreign exchange purchase contracts | Notional Value | $1178836 |
|  Foreign exchange sale contracts | Notional Value | $(582829) |

---

NOTE 7 — Segment Reporting

Operating segments are components of an entity that engage in business activities, have discrete financial information available, and have their operating results regularly reviewed by a chief operating decision maker ("CODM") when assessing segment performance and making decisions about segment resources. Officers of the Advisor act as the Funds' CODM. The Funds' operations are managed to a single investment objective, as detailed in its prospectus, through the execution of the Funds' investment strategies. The Funds' portfolio composition, total returns, expense ratios and

------

GREEN CENTURY FUNDS NOTES TO FINANCIAL STATEMENTS &nbsp;&nbsp;&nbsp;&nbsp;(unaudited) concluded

changes in net assets used by the CODM to assess segment performance and make resource allocations are consistent with the information presented within the Funds' Financial Statements. The accompanying Financial Statements detail the Funds' segment assets, liabilities, income, and expenses.

The accounting policies of the segment are the same as those described in the summary of significant accounting policies. The financial statements include all details of the segment assets, segment revenue and expenses; and reflect the financial results of the segment.

NOTE 8 — Market Risks and Geopolitical Risks

Certain local, regional or global events such as war (including Russia's invasion of Ukraine, the recent war with Iran and the Israel-Hamas war), acts of terrorism, the spread of infectious illnesses and/or other public health issues, volatility of energy prices, governmental actions or other events may have a significant impact on a security or instrument. These types of events and others like them are collectively referred to as "Market Disruptions and Geopolitical Risks" and they may have adverse impacts on the worldwide economy, as well as the economies of individual countries, the financial health of individual companies and the market in general in significant and unforeseen ways. Some of the impacts noted in recent times include but are not limited to embargos, political actions, supply chain disruptions, restrictions to investment and/or monetary movement including the forced selling of securities or the inability to participate in impacted markets. The duration of these events could adversely affect the Fund's performance, the performance of the securities in which the Fund invests and may lead to losses on your investment. The ultimate impact of Market Disruption and Geopolitical Risks on the financial performance of the Fund's investments is not reasonably estimable at this time. Management is actively monitoring these events.

The United States has enacted or proposed to enact significant new tariffs, (which the Supreme Court recently ruled were unconstitutional) and various federal agencies have been directed to further evaluate key aspects of U.S. trade policy, which could potentially lead to significant changes to current policies, treaties, and tariffs. There continues to exist significant uncertainty about the future relationship between the U.S. and other countries with respect to such trade policies, treaties, military conflicts, sanctions and potential tariffs. These developments, or the perception that any of them could occur, may have a material adverse effect on global trade, in particular, trade between the impacted nations and the U.S.; global financial markets' stability; and global economic conditions. These events could, in turn, adversely affect the Fund's overall performance.

NOTE 9 — Subsequent Events

Subsequent to January 31, 2026 and through the date on which the financial statements were available for issuance, management has evaluated subsequent events requiring disclosure.

There were no other events requiring accrual or disclosure.

------

## Semi-Annual Report
INVESTMENT ADVISER AND ADMINISTRATOR

Green Century Capital Management, Inc.

114 State Street

Boston, MA 02109

1-800-93-GREEN

www.greencentury.com

info@greencentury.com

INVESTMENT SUBADVISER

Northern Trust Investments, Inc.

50 South LaSalle Street

Chicago, IL 60603

SUBADMINISTRATOR

UMB Fund Services, Inc. (Subadministrator)

235 West Galena Street

Milwaukee, WI 53212

DISTRIBUTOR

Distributor Services, LLC (an affiliate of ACA Group)

140 E. 45th Street, 29th Floor

(2 Grand Central Tower)

New York, NY 10017

CUSTODIAN

UMB Bank, n.a.

928 Grand Blvd

Kansas City, MO 64106

TRANSFER AGENT

Atlantic Shareholder Services, LLC

Three Canal Plaza

Portland, ME 04101

INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

KPMG LLP

Two Financial Center

60 South Street

Boston, MA 02111

![LOGO](g71349g83p75.jpg)

## January 31, 2026

## Balanced

## Fund

## Equity

## Fund

## International

## Fund
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![LOGO](g71349g88x31.jpg) <br> An investment for your future.<br>Printed on recycled paper with soy-based ink.<br>

------

(b) The information required by Item 13 of Form N-1A is included as part of the financial statements filed under Item 7(a) of this Form.

#### Item 8. Changes in and Disagreements with Accountants for Open-End Management Investment Companies.
Not applicable.

#### Item 9. Proxy Disclosures for Open-End Management Investment Companies.
A notice for a special meeting, along with an accompanying proxy statement, was sent to shareholders of record for the Green Century Balanced Fund as of the close of business on December 8, 2025. This notice was mailed on or around January 5, 2026. The meeting of the Green Century Balanced Fund shareholders took place on February 25, 2026, at 10:00 a.m. During this meeting, shareholders representing a majority, as defined by the 1940 Act, voted in favor of a new sub-advisory agreement with Northern Trust Inc.

#### Item 10. Remuneration Paid to Directors, Officers, and Others of Open-End Management Investment Companies.
The aggregate remuneration paid by the company during the period covered by the report is as follows:

(1) All directors and all members of any advisory board for regular compensation: $30,000 which is paid by the investment adviser.

------

(2) Each director and each member of an advisory board for special compensation: Not Applicable

(3) All officers: Not Applicable

(4) Each person of whom any officer or director of the Fund is an affiliated person: Investment adviser compensation included under Item 7.

#### Item 11. Statement Regarding Basis for Approval of Investment Advisory Contract.
The Board of Trustees of the Green Century Funds (the "Board" or the "Trustees") considered and approved the continuation of the Funds' advisory and subadvisory agreements.

#### INVESTMENT ADVISORY AGREEMENTS
The Trustees, including the Trustees who are not "interested persons" (as defined in Section 2(a)(19) of the Investment Company Act of 1940, as amended) (the "Independent Trustees"), voted to approve the continuance of the Investment Advisory Agreements, as amended (the "Advisory Agreements") between the Trust, on behalf of each of the Balanced Fund, the Equity Fund, and the International Fund and Green Century Capital Management ("Green Century" or the "Adviser") at the October 9, 2025 meeting. The Trustees considered, among other things, information provided by Green Century regarding the investment performance of each Fund; the expenses of each Fund and the advisory fee paid to Green Century by each Fund; and the profitability to Green Century of its advisory relationship with each Fund. The Independent Trustees were assisted by independent counsel in considering these materials and the approval and continuance of the Advisory Agreements. The Trustees considered all of the information provided to them by Green Century, including information provided at Board meetings throughout the year and in connection with other communications and discussions with Green Century. The Independent Trustees also received a memorandum from independent legal counsel advising them of their duties and responsibilities in connection with the review of the Advisory Agreements. The Trustees met with representatives of Green Century at the Trustees' October 9, 2025 meeting to discuss matters related to the continuation of the Advisory Agreements. Prior to voting, the Independent Trustees met with their independent counsel in private sessions at which no representatives of management were present. In approving the Advisory Agreements, the Independent Trustees did not identify any single factor as determinative. Matters considered in connection with their approval of the Advisory Agreements included the following.

**Nature, Quality, and Extent of Services Performed.** The Trustees considered the scope and quality of the services performed for each of the Funds by the Adviser, including the resources dedicated by the Adviser.

With respect to the Balanced Fund, the services performed include the oversight and monitoring of the portfolio management and performance of the Balanced Fund; monitoring the implementation of the Balanced Fund's environmental screens; implementing the environmental and other policies of the Trust by voting the Balanced Fund's shareholder proxies independently and without reliance on third-party proxy advisory firms; and overall compliance oversight provided by the Adviser. The Trustees considered the Adviser's past and ongoing supervision of Trillium Asset Management, LLC ("Trillium"), the current subadviser of the Balanced Fund, which performs the day-to-day portfolio management for the Fund. The Trustees also considered the Adviser's engagement with Northern Trust Investments, Inc. ("Northern Trust") on Northern Trust's proposed investment strategy for the Balanced Fund and the Adviser's anticipated supervision of, and continued engagement with, Northern Trust under the New Subadvisory Agreement. The Trustees took into account that the services provided by the Adviser include oversight of any transition from one subadviser to another.

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With respect to the Equity Fund and the International Fund, these services include monitoring the Equity Fund's performance and tracking error relative to the MSCI KLD 400 Social ex Fossil Fuels Index (the "MSCI KLD Index"); monitoring the International Fund's performance and tracking error relative to the MSCI World ex USA SRI ex Fossil Fuels Index (the "MSCI World Index"); implementing the environmental and other policies of the Trust by voting the Equity Fund's and the International Fund's shareholder proxies independently and without reliance on third-party proxy advisory firms; and overall compliance oversight provided by the Adviser. The Trustees also considered the Adviser's supervision of Northern Trust, the subadviser of the Equity Fund and the International Fund, which performs day-to-day portfolio management for those two Funds.

In addition, the Trustees considered the Adviser's mission to promote corporate environmental responsibility and to foster a sustainable economy, implemented in part by its commitment with respect to shareholder advocacy for more environmentally responsible policies and practices at major corporations. They also considered that the Adviser has long been a leader in the sustainable investing space and continues to follow its mission despite recent pressures on the asset management industry to downplay both sustainable investing and advocacy. They noted that the proposed investment strategy under the New Subadvisory Agreement with Northern Trust would continue to present robust opportunities for the Adviser to engage in shareholder advocacy. They also took into account the not-for-profit ownership of the Adviser's business, including its history of making grants to non-profit organizations out of its own resources and the fact that any distribution of profits by the Adviser are paid to its 100% owner, Paradigm Partners, which is comprised entirely of nonprofit environmental and public interest advocacy organizations so that no for-profit corporations directly benefit from the distributed earned profits of the Adviser. The Trustees noted that the organizations under Paradigm Partners advocate for critical public health and environmental campaigns. The Trustees considered the Adviser's distribution of profits in recent years and acknowledged the long-term commitment from Paradigm Partners over the 30+ years since the Trust was created. They also evaluated the administrative services provided by Green Century to the Funds under a separate agreement, including the coordination of the activities of the Funds' other service providers. Based on its review of all of the services provided, the Trustees concluded that the nature, quality, and extent of services provided by the Adviser supported the continuance of the Advisory Agreements with respect to each Fund.

**Investment Performance.** With respect to the Balanced Fund, the Trustees reviewed and considered information regarding the investment performance of the Balanced Fund and comparative data with respect to the performance of other funds designated by Morningstar to have similar investment objectives as well as the Balanced Fund's performance measured against the Lipper Balanced Fund Index ("Lipper Index"), which is a broad-based balanced fund market index, and against a custom balanced index ("Custom Index") comprised of a 60% weighting in the S&P 1500 Index and a 40% weighting in the BofA Merrill Lynch 1-10 Year US Corporate and Government Index. In addition, the Trustees took into account the performance information they had been provided throughout the year. The Trustees considered that Northern Trust would employ a systematic process to manage the Fund, whereby Northern Trust would use selected indexes as benchmarks and utilize a rules-based approach to build a model portfolio that reflects the Fund's desired investment criteria. The Trustees also reviewed information provided by

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Northern Trust, including the performance of model Fund portfolios constructed by Northern Trust. After weighing all the factors deemed appropriate, including the environmental screens that have applied, and that would be applied, to the Fund's investment process, the Trustees concluded that the performance information provided supported the continuance of the Advisory Agreement with respect to the Balanced Fund.

With respect to the Equity Fund and the International Fund, the Trustees considered that due to each Fund's passive investment strategy, the principal concern with regard to investment performance was the extent to which each Fund tracked its respective index. After considering all the factors deemed appropriate, the Trustees concluded that the performance of the Equity Fund and the International Fund supported the continuance of the respective Advisory Agreement.

**The Costs of Services Provided and Profitability.** The Trustees considered the costs of the services provided to the Funds and the profitability to the Adviser from its arrangements with the Funds.

The Trustees reviewed and considered an analysis of the advisory fees and total expenses ratios of each Fund and comparative data for multiple categories of mutual funds included in and as defined by Morningstar's mutual fund database of thousands of mutual funds. In addition, the Trustees considered comparative advisory fee and expense ratio information provided by Green Century relating to a smaller set of peer funds identified by Green Century. The Trustees took into account, among other things, the distinct nature of the Funds as compared with peer funds, particularly with respect to the Funds' social investing, the non-profit ownership of the Adviser, and the Adviser's advocacy efforts and how those characteristics distinguished the Funds from their peers. The Trustees considered the size of Green Century and that Green Century was not at the same operational scale as most competitors. The Trustees also noted that, based on information provided by Green Century, competitors to the Equity Fund include actively managed funds in addition to index funds.

With respect to the Morningstar peer groups, for the Balanced Fund, the Trustees observed that, based on the information provided, the Fund's current advisory fee for the Individual Investor Class was higher than the average advisory fee for sustainable investment funds (by 10 basis points), sustainable investment balanced funds (by 15 basis points), all balanced funds (by 15 basis points) and balanced funds with assets between $300 million and $400 million (by 9 basis points). The Trustees also noted that the total expense ratio for the Individual Investor Class of the Balanced Fund was effectively capped at 1.46% through the application of a "unitary administrative fee" paid to Green Century, and that the total expense ratio was higher than that of the average of sustainable investment funds (by 55 basis points), sustainable investment balanced funds (by 38 basis points), all balanced funds (by 53 basis points) and balanced funds with assets between $300 million and $400 million (by 33 basis points).

While the Trustees considered approval of the Advisory Agreement with respect to the Balanced Fund based on the current advisory fee rate that is in place for so long as Trillium is the Fund's subadviser, the Trustees considered the Adviser's proposal to significantly reduce the advisory fee for the Balanced Fund in connection with the approval of the New Subadvisory Agreement.

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The Trustees noted that the current advisory fee rate was 0.65% of the average daily net assets of the Balanced Fund up to and including $250 million and 0.60% of the average daily net assets of the Balanced Fund in excess of $250 million and that the proposed new advisory fee rate would be 0.45% on the average daily net assets of the Balanced Fund up to $150 million, 0.42% of the average daily net assets of the Balanced Fund from $150 million to $300 million, 0.38% of the average daily net assets of the Balanced Fund from $300 million to $1 billion, and 0.36% in excess of $1 billion.

For the Equity Fund, the Trustees observed that, based on the information provided, the Fund's advisory fee for the Individual Investor Class was lower than the average advisory fee for sustainable investment funds (by 32 basis points), sustainable investment large growth funds (by 40 basis points), all large growth funds (by 46 basis points), large growth funds with assets between $500 million and $600 million (by 40 basis points) and large growth index funds (by 31 basis points). The Trustees also noted that the total expense ratio of Individual Investor Class of the Equity Fund was effectively capped at 1.20% through the application of a "unitary administrative fee" paid to Green Century. The Trustees noted that the total expense ratio was higher than the average of sustainable investment funds (by 29 basis points), sustainable investment large growth funds (by 18 basis points) and all large growth funds (by 5 basis points) and large growth funds with assets between $500 million and $600 million (by 12 basis points), and was equal to the average of large growth index funds.

For the International Fund, the Trustees noted that, based on the information provided, the Fund's advisory fee for the Individual Investor Class was lower than that of the average advisory fee for sustainable investment funds (by 25 basis points), sustainable investment foreign large blend funds (by 31 basis points), all foreign large blend funds (by 33 basis points) and foreign large blend funds with assets between $100 million and $200 million (by 38 basis points) and was higher than the average advisory fee for foreign large blend index funds (by 14 basis points). The Trustees also noted that the total expense ratio of Individual Investor Class shares of the International Fund was effectively capped at 1.28% through the application of a "unitary administrative fee" paid to Green Century, and that the total expense ratio was higher than that of the average of sustainable investment funds (by 37 basis points), sustainable investment foreign large blend funds (by 31 basis points), all foreign large blend funds (by 27 basis points), foreign large blend funds with assets between $100 million and $200 million (by 13 basis points) and foreign large blend index funds (by 95 basis points).

Green Century provided the Trustees with information relating to the profitability to Green Century of its advisory relationships to the Funds. The Trustees noted that, based on information provided by Green Century, the relationships to the Funds had been unprofitable for the earlier years of the Trust, though recent growth in Fund assets resulted in a profit for the Adviser's fiscal year ended June 30, 2015 and increasing levels of profit for subsequent periods through the Adviser's fiscal year ended June 30, 2025. The Trustees considered an analysis of the estimated Fund-by-Fund profitability for Green Century from the investment management and administrative service it provides to the Trust, which showed that the Adviser had made a profit from managing the Equity Fund and the Balanced Fund for the fiscal year ended June 30, 2025. In this regard, the Trustees considered the subadvisory fees and the other expenses incurred by the Adviser in providing advisory services to the Funds and the amount retained by Green

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Century out of the advisory fees. The Trustees also considered the fees received by Green Century for providing administrative services to the Funds and the expenses incurred in providing those services. In considering the cost allocation methodology used by Green Century, the Trustees took into consideration that the Adviser derives all of its revenues from the Funds and does not provide advisory or administrative services to other mutual funds or to non-mutual fund clients. The Trustees considered the costs and entrepreneurial risks assumed by the Adviser in connection with launching, branding and maintaining publicly-offered mutual funds and that the Adviser had been unprofitable for nine of the last twenty fiscal years. The Trustees took into account the operational enhancements that Green Century had indicated it would need to undertake in connection with the growth of Fund assets, the addition of new share classes, and the expansion into different types of assets. The Trustees also considered Green Century's non-profit ownership structure, its cost structure and personnel needs, and its investment in shareholder advocacy that aligns with the Funds' stated intention to promote greater corporate environmental accountability. The Trustees also took into account that, as disclosed in the Funds' prospectus, Green Century may provide grants and other funding to non-profit advocacy organizations to support their campaign work on wilderness protection, environmental protection, clean energy and other public benefit issues. After reviewing the information described above, the Trustees concluded that the fees specified in the Advisory Agreements, taking into account the costs of the services provided by the Adviser and the profitability to the Adviser of its relationships with the Funds, supported the continuance of the Advisory Agreements with respect to the Funds.

**Other Benefits.** With respect to fall-out benefits from the Adviser's arrangements with the Funds, the Trustees considered that neither Green Century nor any affiliate of Green Century receives any brokerage fees, soft dollar benefits, liquidity rebates from electronic communications networks or payments for order flow from the trades executed for each Fund. The Trustees noted that Green Century does potentially benefit from its relationship with the Funds due to the Funds' reputation as one of the first families of no-load environmentally responsible mutual funds and, more recently, as a pioneer in responsible and diversified fossil fuel free mutual funds. The Trustees considered that the association with the Funds supports Green Century's own stated mission of advocating for corporate environmental responsibility. Further, pursuant to the Advisory Agreements, Green Century has reserved for itself the rights to the names "Green Century Funds" and any similar names; thus, Green Century may benefit in the future from developing other funds or investment products with the Green Century brand. The Trustees considered these fall-out benefits in context of the Adviser's non-profit ownership structure and its history of providing grants and other funding to non-profit advocacy organizations. The Trustees concluded that the fall-out benefits to be realized by Green Century were appropriate.

**Economies of Scale.** The Trustees also considered whether economies of scale could be realized by the Adviser as the Funds grow in asset size and the extent to which such economies of scale were reflected in the level of fees charged. They noted the relatively small size of each Fund and the resultant difficulty of achieving meaningful economies of scale, though they took into account the effects of significant increases in Fund and Trust assets over the past few years, building upon what had historically been a very small base. They considered that if the assets were to increase further, the Funds could have the opportunity to experience economies of scale

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as fixed costs would become a smaller percentage of the Funds' assets and some of the Funds' service providers' fees, as a percentage of the Funds' assets, could decrease. The Trustees noted that the advisory fee structure for each of the Equity Fund and the Balanced Fund includes breakpoints that would cause the advisory fee to decrease as a percentage of net assets as the Fund increased in size, though under certain circumstances the structure of the Equity Fund's unitary administrative fee arrangement with the Adviser offsets the effects of any advisory fee reduction on the total expense ratio. The Trustees noted that Green Century was proposing to reduce the advisory fee for the Balanced Fund in connection with the New Subadvisory Agreement. The Trustees also considered information provided by Green Century regarding how it seeks to reinvest its higher fee revenues from economies of scale into augmenting the quality and sophistication of its business in support of the Funds. The Trustees concluded that, in light of all of the facts and circumstances, breakpoints were not warranted at this time, and that if assets increased significantly the Trustees would have opportunities to negotiate further breakpoints or other decreases in fees with the Adviser.

Based on a review of all factors deemed relevant, the Trustees, including the Independent Trustees, concluded that the Advisory Agreements with respect to all of the Funds should be continued for an additional one-year period.

#### INVESTMENT SUBADVISORY AGREEMENTS FOR THE EQUITY FUND AND INTERNATIONAL FUND
The Trustees, including the Independent Trustees, voted to approve the continuance of the subadvisory agreements among Green Century, Northern Trust and the Trust, on behalf of the Equity Fund (the "Equity Fund Subadvisory Agreement") and the International Fund (the "International Fund Subadvisory Agreement" and together with the Equity Fund Subadvisory Agreement, the "Subadvisory Agreements") at the October 9, 2025 meeting. As noted above, the Trustees' consideration of the New Subadvisory Agreement on behalf of the Balanced Fund is included in a separate Report of the Trustees. In connection with their deliberations at the meetings, the Trustees considered, among other things, information provided by Northern Trust regarding the investment performance of the Equity Fund (including the success with which the Equity Fund tracked the MSCI KLD Index) and the International Fund (including the success with which the International Fund tracked the MSCI World Index), the subadvisory fees paid to Northern Trust and financial information about Northern Trust. The Trustees were assisted by independent counsel in considering these materials and the continuance of the Subadvisory Agreements. The Trustees considered all of the information provided to them by Northern Trust, including information provided throughout the year. The Trustees also received a memorandum from independent legal counsel advising them of their duties and responsibilities in connection with the contract review. In approving the continuance of the Subadvisory Agreements the Trustees did not identify any single factor as determinative. Matters considered in connection with their approval of the Subadvisory Agreements included the following.

**Nature, Quality, and Extent of Services Performed.** The Trustees noted that under the terms of the Equity Fund Subadvisory Agreement and the International Fund Subadvisory Agreement, Northern Trust provided the day-to-day portfolio management of each of the Equity Fund and the International Fund, making purchases and sales of portfolio securities consistent with each such Fund's investment objective and policies and with changes to the applicable index. The

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Trustees considered the professional expertise, tenure, and qualifications of the portfolio management team as well as the team's experience in passive management. The Trustees also considered Northern Trust's handling of daily inflows and outflows, transaction costs, tracking error, and the portfolio turnover rates for each of the Equity Fund and the International Fund. The Trustees also considered Northern Trust's compliance record as well as the professional experience and responsiveness of Northern Trust's compliance staff, as reported to them by the Trust's chief compliance officer.

Based on its review of all of the services provided and to be provided, the Trustees concluded that the nature, quality, and extent of services provided by Northern Trust, respectively, supported the continuance of the Subadvisory Agreements.

**Investment Performance.** The Trustees considered that due to each of the Equity Fund's and the International Fund's passive investment strategy, the principal concern with regard to investment performance was the extent to which the Fund tracked its respective index. The Trustees reviewed the performance of the Individual Investor Class shares of the Equity Fund as compared to that of the MSCI KLD Index for the twelve-month period ended July 31, 2025, and noted that the Equity Fund's performance underperformed that of the MSCI KLD Index. In particular, they observed that, after taking into consideration the fees and expenses of the Individual Investor Class shares, for the one-year period the Equity Fund's performance was in line with that of the MSCI KLD Index. After considering all the factors deemed appropriate, the Trustees concluded that the performance of the Equity Fund together with Northern Trust's investment process and experience in passive portfolio management supported the continuance of the Equity Fund Subadvisory Agreement. The Trustees reviewed the performance of the Individual Investor Class shares of the International Fund, exclusive of the expenses of the class, as compared to that of the MSCI World Index for the twelve-month period ended July 31, 2025, and noted that the Fund's performance underperformed that of the MSCI World Index. The Trustees took into account that the non-U.S. nature of the securities in which the International Fund invests and the Fund's fees and expenses have an impact on the Fund's tracking error. After considering all the factors they deemed appropriate, the Trustees concluded that the performance of the International Fund together with Northern Trust's investment process and experience in passive portfolio management supported the continuance of the International Fund Subadvisory Agreement.

**Costs of Services Provided and Profitability.** The Trustees considered that the subadvisory fees paid by Green Century to Northern Trust under the Equity Fund Subadvisory Agreement were effectively an annual fee equal to 0.10% of the value of the average daily net assets of the Equity Fund up to but not including $50 million, 0.05% of the value of the average daily net assets of the Equity Fund from and including $50 million up to but not including $100 million, and 0.03% of the value of the average daily net assets of the Equity Fund equal to or in excess of $100 million.

The Trustees considered that that the subadvisory fees paid by Green Century to Northern Trust under the International Fund Subadvisory Agreement were effectively an annual fee equal to 0.17% of the value of the average daily net assets of the Fund up to but not including $50 million, 0.12% of the average daily net assets of the Fund from and including $50 million up to but not including $100 million, and 0.08% of the average daily net assets of the Fund equal to or in excess of $100 million.

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The Trustees reviewed and considered an analysis of the subadvisory fees for the Equity Fund and the International Fund against comparative data for mutual funds subadvised by Northern Trust with a similar investment strategy and asset size. The Trustees noted that each Fund paid subadvisory fees at effective rates comparable to those paid to Northern Trust by funds having similar strategies that Northern Trust manages with similar levels of net assets. In evaluating the profitability of each of the Equity Fund Subadvisory Agreement and International Fund Subadvisory Agreement to Northern Trust, the Trustees noted that Northern Trust does not calculate earnings at the subadvisory client level.

The Trustees also considered that the subadvisory fees are paid by Green Century, and are not in addition to the advisory fees paid to Green Century by the Funds.

After reviewing the information described above, the Trustees concluded that the fees specified in the Subadvisory Agreements, taking into account the nature and quality of services provided and the costs of the services provided by Northern Trust as applicable, supported the continuance of the Subadvisory Agreements.

**Other Benefits.** The Trustees evaluated potential other benefits that Northern Trust may realize from its relationship with the Funds. The Trustees also considered the brokerage practices of Northern Trust, including that Northern Trust does not trade for the Equity Fund or the International Fund through its affiliated broker. The Trustees also considered that no soft dollars have been paid in connection with Northern Trust's management of the Equity Fund and the International Fund.

The Trustees further considered the reputational and other advantages that Northern Trust may gain from its relationship with the Funds, including that Northern Trust's management of the Equity Fund and the International Fund will broaden its exposure to the socially responsible mutual fund market. The Trustees concluded that the benefits received by Northern Trust were reasonable in the context of its relationship with the Funds.

**Economies of Scale.** The Trustees also considered whether economies of scale would be realized by Northern Trust as the Funds grow in asset size and the extent to which such economies of scale might be reflected in the subadvisory fees. They noted the relatively small size of each Fund (compared with similar funds in the industry) and the resultant difficulty of achieving meaningful economies of scale, despite the effects of significant increases in Fund and Trust assets over the past few years. They considered that if the assets were to increase further, Northern Trust could have the opportunity to experience economies of scale. They also noted that pursuant to the Equity Fund Subadvisory Agreement and the International Fund Subadvisory Agreement, the overall subadvisory fees paid to Northern Trust by Green Century (out of the advisory fee that Green Century receives from the applicable Fund, which, for the Equity Fund, is subject to breakpoints) include breakpoints at $50 million and $100 million, so that fees as a percentage of net assets decrease as assets in the Equity Fund and the International Fund increase. The Trustees concluded that economies of scale could be realized as the Funds grow, and that the fee schedules as specified were appropriate, and supported the continuance of the Subadvisory Agreements.

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Based on a review of all factors deemed relevant, the Trustees, including the Independent Trustees, concluded that all of the Subadvisory Agreements should be continued for an additional one-year period.

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#### BALANCED FUND SUBADVISORY AGREEMENT
The Independent Trustees (those trustees who are not interested persons as defined by the Investment Company Act of 1940, as amended) of the Green Century Funds (the "Trust") met in-person during the Board of Trustees meeting on October 9, 2025 and at an executive session during that same meeting, and unanimously approved the Subadvisory Agreement, which will continue in effect for a term ending on [date] or will continue in effect for two years, and thereafter will continue in effect if such continuance is approved at least annually as required by the 1940 Act and (ii) unanimously recommended that Shareholders of the Fund approve the Subadvisory Agreement.

In connection with their deliberations at the meeting, and in separate executive session of the Independent Trustees, the Trustees considered, among other things, information provided by Northern Trust regarding (1) the nature, quality and extent of the services proposed to be provided by Northern Trust to the Fund and (2) the expenses of the Fund and the subadvisory fee proposed to be paid to Northern Trust. The Independent Trustees were advised by independent counsel in considering these materials, the approval of the Subadvisory Agreement, and the recommendation that Shareholders approve the Subadvisory Agreement. The Trustees considered all of the information provided to them by Northern Trust. The Trustees had previously been provided with a memorandum prepared by their independent legal counsel with respect to the applicable legal standards, including the factors to be considered, in connection with the Trustees' review of the Subadvisory Agreement. In approving the Subadvisory Agreement and recommending that Shareholders approve the Subadvisory Agreement, the Board, including the Independent Trustees, did not identify any single factor as determinative. Matters considered in connection with their approval of the Subadvisory Agreement included the following.

**Nature, Quality, and Extent of Services To Be Performed.** The Trustees noted that under the terms of the Subadvisory Agreement, Northern Trust would provide day-to-day portfolio management of the Fund, making purchases and sales of portfolio securities consistent with the Fund's investment objective and policies. The Trustees reviewed the terms of the Subadvisory Agreement and noted that the terms and conditions were substantially similar to the Current Subadvisory Agreement in all material respects as the terms and conditions of the Current Agreement. In this regard, the Trustees noted that the Subadvisory Agreement is more restrictive regarding Northern Trust's ability to use commissions paid to broker-dealers in connection with the purchase or sale of fund securities to pay for research and other services from a broker-dealer. The Trustees also considered Northern Trust's expertise in effectively executing trades. The Trustees considered Northern Trust's professional expertise and the tenure and qualifications of the portfolio management team for the Fund, as well as the team's experience in investing in both equity and fixed-income securities. In light of the Green Century Capital Management's ("Green Century" or the "Adviser") reorientation of the Fund's holdings to implement a principled portfolio of stocks and bonds built on environmental and quality screens, the Trustees considered Northern Trust's ability to maintain a fossil fuel free portfolio, implement investment screens defined by Green Century and reduce the Fund's tracking error. The Trustees noted that Northern Trust's management of the Fund with a focus on environmental considerations would align well with the Fund's mission. The Trustees also considered Northern Trust's compliance policies and procedures and compliance record as well as the professional experience and responsiveness of Northern Trust's compliance staff. All of the Trustees' considerations of Northern Trust's capabilities, resources and personnel were informed by their experience with Northern Trust's subadvisory services for the Green Century MSCI International Index Fund and Green Century Equity Fund.

Based on their review of all the services proposed to be provided, the Trustees concluded that Northern Trust had the capabilities, resources and personnel necessary to provide subadvisory services to the Fund, and concluded that the nature, quality and extent of services to be provided by Northern Trust supported the approval of the Subadvisory Agreement.

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**Investment Performance.** The Trustees considered that Northern Trust would employ a systematic process to manage the Fund, whereby Northern Trust would use selected indexes as benchmarks and utilize a rules-based approach to build a model portfolio that reflects the Fund's desired investment criteria. The Trustees also reviewed information provided by Northern Trust, including the performance of model Fund portfolios constructed by Northern Trust. In light of this analysis, the Trustees did not believe it would be meaningful to compare the performance of other portfolios managed by Northern Trust to other funds with similar investment objectives and strategies. The Trustees also considered the Fund's prior performance and the variability of the Fund's prior performance over different time periods. After considering all the factors deemed appropriate, the Trustees concluded that Northern Trust's investment process, model portfolio performance and experience in environmental investing supported the approval of the Subadvisory Agreement.

**Costs of Services To Be Provided.** The Trustees considered the proposed subadvisory fees to be paid to Northern Trust by Green Century and the fall-out benefits to Northern Trust from the proposed arrangement with the Fund. The Trustees reviewed the proposed subadvisory fee compared to the subadvisory fees and advisory fees paid to Northern Trust by other mutual funds with similar investment objectives and strategies as the Fund. In addition, the Trustees compared the proposed subadvisory fees to be paid by Green Century to Northern Trust against the subadvisory fees paid by Green Century to Trillium under the Current Agreement and noted that approval of the Subadvisory Agreement, in concert with the commensurate reduction in fees by Green Century, would result in substantially reduced fees. The Trustees noted that the fee schedule in both the Subadvisory Agreement and the Current Agreement included breakpoints and reduced fee rates above certain asset levels, and that the fees payable under the Subadvisory Agreement were subject to a minimum annual amount at certain asset levels. The Trustees considered that the fees to be paid to Northern Trust would be lower than the fees paid to Trillium at current asset levels and at all asset levels above $25 million, but higher than fees paid to Trillium at asset levels below $25 million. The Trustees also considered that Green Century proposed to reduce the Fund's investment advisory fee.

After reviewing the information described above, the Trustees concluded that the fees proposed in the Subadvisory Agreement, taking into account the costs of the services provided by Northern Trust, supported the approval of the Subadvisory Agreement. The Trustees also concluded that the fees proposed in the Subadvisory Agreement were fair and reasonable.

**Other Benefits.** The Trustees evaluated potential other benefits Northern Trust may realize from its relationship with the Fund. The Trustees considered the reputational and other advantages Northern Trust may gain from its relationship with the Fund, including Northern Trust's ability to highlight the Fund as a differentiated, environmentally-oriented product that it manages. The Trustees concluded that the benefits expected to be received by Northern Trust were reasonable in the context of the proposed relationship between Northern Trust and the Fund and supported the approval of the Subadvisory Agreement.

**Economies of Scale.** The Trustees also considered whether economies of scale would be realized by Northern Trust as the Fund grows in asset size and the extent to which such economies of scale might be reflected in the proposed fee schedule. They noted the relatively small size of the Fund (compared with similar funds in the industry) and the resultant difficulty of achieving meaningful economies of scale, though they took into account the effects of significant increases in Fund and Trust assets over the past few years. They considered that if the assets were to increase, Northern Trust could have the opportunity to experience economies of scale. They also noted that pursuant to the Subadvisory Agreement, the overall subadvisory fees paid to Northern Trust by Green Century (out of the advisory fee that Green Century receives from the Fund, which is subject to a breakpoint) include breakpoints at $150 million and $750 million, so that fees as a percentage of net assets decrease modestly (from 15 basis points towards 8 basis points) as assets in the Fund increase. The Trustees concluded that economies of scale could be realized as the Fund grows, and that the fee schedules as specified were appropriate at the present time, and supported the approval of the Subadvisory Agreement.

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Based on a review of all factors deemed relevant, the Trustees, including the Independent Trustees, concluded that the Subadvisory Agreement should be approved and submitted to the Fund's Shareholders for approval.

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#### Item 12. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.
Not applicable.

#### Item 13. Portfolio Managers of Closed-End Management Investment Companies.
Not applicable.

#### Item 14. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.
Not applicable.

#### Item 15. Submission of Matters to a Vote of Security Holders.
There were no material changes to the procedures by which shareholders may recommend nominees to the registrant's Board of Trustees.

#### Item 16. Controls and Procedures.
(a) Based on an evaluation of the disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended, the "Disclosure Controls") as of a date within 90 days of the filing date (the "Filing Date") of this Form N-CSR (the "Report"), the registrant's principal executive officer and principal financial officer have concluded that the Disclosure Controls are effectively designed to ensure that information that is required to be disclosed by the registrant in the Report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms, including ensuring that information required to be disclosed in the Report is accumulated and communicated to the registrant's management, including the registrant's principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosures.

(b) There were no changes in the registrant's internal controls over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) that occurred during the fiscal period covered by this report that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting.

#### Item 17. Disclosure of Securities Lending Activities for Closed-End Management Investment Companies.
Not applicable.

#### Item 18. Recovery of Erroneously Awarded Compensation.
(a) Not applicable.

(b) Not applicable.

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#### Item 19. Exhibits
(a) (1) Code of Ethics: Incorporated by reference to the Registrant's Form N-CSR filed on October 7, 2013.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Not applicable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[(3) Certifications for each principal executive and principal financial officer as required by Rule 30a-2(a) under the Investment Company Act of 1940, as amended, (17 CFR 270.30a-2(a)) are filed herewith.](d71349dex99cert.htm)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) Not applicable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) Not applicable.

(b) [Certifications required by Rule 30a-2(b) under the Investment Company Act of 1940, as amended, (17 CFR 270.30a-2(b)) are filed herewith.](d71349dex99906cert.htm)

------

#### SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

---

| |
|:---|
| <u>Green Century Funds</u> |
| /s/ Leslie Samuelrich |
| Leslie Samuelrich |
| President and Principal Executive Officer |
| April 7, 2026 |

---

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

---

| |
|:---|
| /s/ Leslie Samuelrich |
| Leslie Samuelrich |
| President and Principal Executive Officer |
| April 7, 2026 |

---

---

| |
|:---|
|  /s/ Matthew Dunlap |
|  Matthew Dunlap |
|  Treasurer and Principal Financial Officer |
| April 7, 2026 |

---

## Ex-99.Cert

EX-99.CERT

**Green Century Funds** 

**Exhibit 13(a)(2) to Form N-CSR** 

CERTIFICATIONS PURSUANT TO SECTION 302 OF THE

SARBANES-OXLEY ACT OF 2002

I, Leslie Samuelrich, certify that:

1. I have reviewed this report on Form N-CSR of Green Century Funds;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a
material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report,
fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the
periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be
designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is
being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Designed such internal control over financial reporting, or caused such internal control over financial
reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting
principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this
report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Disclosed in this report any change in the registrant's internal control over financial reporting that
occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed to the registrant's auditors and the
audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) All significant deficiencies and material weaknesses in the design or operation of internal control over
financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in
the registrant's internal control over financial reporting.

------

---

| |
|:---|
| /s/ Leslie Samuelrich |
| Leslie Samuelrich |
| President and Principal Executive Officer |
| April 7, 2026 |

---

------

EX-99.CERT

**Green Century Funds** 

**Exhibit 13(a)(2) to Form N-CSR** 

CERTIFICATIONS PURSUANT TO SECTION 302 OF THE

SARBANES-OXLEY ACT OF 2002

I, Matthew Dunlap, certify that:

1. I have reviewed this report on Form N-CSR of Green Century Funds;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a
material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report,
fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the
periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be
designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is
being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Designed such internal control over financial reporting, or caused such internal control over financial
reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting
principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this
report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d) Disclosed in this report any change in the registrant's internal control over financial reporting that
occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed to the registrant's auditors and the
audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) All significant deficiencies and material weaknesses in the design or operation of internal control over
financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in
the registrant's internal control over financial reporting.

------

---

| |
|:---|
| /s/ Matthew Dunlap |
| Matthew Dunlap |
| Treasurer and Principal Financial Officer |
| April 7, 2026 |

---

## Exhibit 99.906

EX-99.906CERT

**Green Century Funds** 

**Exhibit 13(b) to Form N-CSR** 

CERTIFICATIONS PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

I, Leslie Samuelrich, President and Principal Executive Officer of the Green Century Funds, certify that to my knowledge:

1. The Form N-CSR of the registrant (the "Report") fully
complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and
results of operations of the registrant.

---

| |
|:---|
| /s/ Leslie Samuelrich |
| Leslie Samuelrich |
| President and Principal Executive Officer |
| April 7, 2026 |

---

A signed original of this written statement required by Section 906 of the Sarbanes-Oxley Act of 2002 has been provided to the registrant and will be retained by the registrant and furnished to the Securities and Exchange Commission (the "Commission") or its staff upon request.

This certification is being furnished to the Commission solely pursuant to 18 U.S.C. (S) 1350 and is not being filed as part of the Form N-CSR with the Commission.

------

EX-99.906CERT

**Green Century Funds** 

**Exhibit 13(b) to Form N-CSR** 

CERTIFICATIONS PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

I, Matthew Dunlap, Treasurer and Principal Financial Officer of the Green Century Funds, certify that to my knowledge:

1. The Form N-CSR of the registrant (the "Report") fully
complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and
results of operations of the registrant.

---

| |
|:---|
| /s/ Matthew Dunlap |
| Matthew Dunlap |
| Treasurer and Principal Financial Officer |
| April 7, 2026 |

---

A signed original of this written statement required by Section 906 of the Sarbanes-Oxley Act of 2002 has been provided to the Registrant and will be retained by the Registrant and furnished to the Securities and Exchange Commission (the "Commission") or its staff upon request.

This certification is being furnished to the Commission solely pursuant to 18 U.S.C. (S) 1350 and is not being filed as part of the Form N-CSR with the Commission.