# EDGAR Filing Document

**Accession Number:** 0000356682
**File Stem:** 0001410368-25-028953
**Filing Date:** 2025-11
**Character Count:** 13289
**Document Hash:** 089d14102c8bcf57c78584ab0d167450
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-028953.hdr.sgml**: 20251124

**ACCESSION NUMBER**: 0001410368-25-028953

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251124

**DATE AS OF CHANGE**: 20251124

**PERIOD START**: 20250930

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Calvert Social Investment Fund
- **CENTRAL INDEX KEY:** 0000356682

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-03334
- **FILM NUMBER:** 251509869

**BUSINESS ADDRESS:**
- **STREET 1:** 2050 M STREET NW
- **CITY:** WASHINGTON
- **STATE:** DC
- **ZIP:** 20036
- **BUSINESS PHONE:** 8002256265

**MAIL ADDRESS:**
- **STREET 1:** 2050 M STREET NW
- **CITY:** WASHINGTON
- **STATE:** DC
- **ZIP:** 20036

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CALVERT SOCIAL INVESTMENT FUND
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### Calvert Moderate Allocation Fund (Series ID: S000008722)

| Class ID   | Class Name                                | Ticker Symbol   |
|:---|:---|:---|
| C000023772 | Class A                                   | CMAAX           |
| C000023773 | Class C                                   | CMACX           |
| C000099327 | Class I                                   | CLAIX           |
| C000235279 | Calvert Moderate Allocation Fund Class R6 | CAMRX           |

## Form NPORT-P: Monthly Portfolio Investments Report

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

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

- **a. Name of Registrant:** Calvert Social Investment Fund

- **b. Investment Company Act file number:** 811-03334

- **c. CIK number of Registrant:** 0000356682

- **d. LEI of Registrant:** 549300V0NY9G3Y5OI796

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

  - **Street Address 1:** 2050 M Street NW

  - **City:** Washington

  - **State:** DC

  - **Foreign country:** US

  - **Zip / Postal Code:** 20036

  - **Telephone number:** 202-238-2200

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

- **a. Name of Series:** Calvert Moderate Allocation Fund

- **b. EDGAR series identifier (if any):** S000008722

- **c. LEI of Series:** 549300ORTNKBKFWWD569

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

- **a. Date of fiscal year-end:** 2025-09-30

- **b. Date as of which information is reported:** 2025-09-30

**Item A.4. Final filing**

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

### Fund Information

**Total Assets:** $393216699.53

**Total Liabilities:** $409896.27

**Net Assets:** $392806803.26

**Cash Not Reported:** $988727.12

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000023773 | -0.05%               | 2.01%                | 1.68%                |
| Class ID C000099327 | 0.09%                | 2.09%                | 1.76%                |
| Class ID C000023772 | 0.04%                | 2.09%                | 1.74%                |
| Class ID C000235279 | 0.09%                | 2.09%                | 1.73%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $1542645.89              | $-1739951.56                               |
| Month 2  | $0.00                    | $7557400.44                                |
| Month 3  | $1641063.54              | $4181288.89                                |

**Designated Index Information**

- **Index Name:** 45% Russell 3000/ 35% Bloomberg US Agg/ 20% MSCI ACWI ex USA IMI

- **Index Identifier:** LEHRSMSCW

### Schedule of Portfolio Investments

| Name                                               | Title                                                               | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Calvert Core Bond Fund                             | Calvert Core Bond Fund                                              | CUSIP: 131582330<br>LEI: 549300HEFY2HHDRM0E11 | Long             | EC               | RF                | US        |   1585434 | NS      | $25335239.54  | 6.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Bond Fund                                  | Calvert Bond Fund                                                   | CUSIP: 131582322<br>LEI: 549300T75TF7NTCFI791 | Long             | EC               | RF                | US        |   3763430 | NS      | $55623500.01  | 14.16%            |  |  |  | No            |                  1 | On Loan: No      |
| Calvert US Mid Cap Core Responsible Index Fund     | Calvert US Mid Cap Core Responsible Index Fund                      | CUSIP: 131618456<br>LEI: 549300I74Z158YTBPO44 | Long             | EC               | RF                | US        |    130921 | NS      | $5862643.68   | 1.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Chicago Board of Trade                             | US ULTRA BOND CBT DEC25                                             | CUSIP: 000000000<br>LEI: 549300EX04Q2QBFQTQ27 | N/A              | DIR              |  | US        |        23 | NC      | $76850.59     | 0.02%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert International Opportunities Fund           | Calvert International Opportunities Fund                            | CUSIP: 131649758<br>LEI: 549300125QOYCBC7IB51 | Long             | EC               | RF                | US        |    574586 | NS      | $10710286.30  | 2.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert US Large Cap Core Responsible Index Fund   | Calvert US Large Cap Core Responsible Index Fund                    | CUSIP: 131582298<br>LEI: 549300PO0F0AV64IR605 | Long             | EC               | RF                | US        |   1127978 | NS      | $64441363.37  | 16.41%            |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Mortgage Access Fund                       | Calvert Mortgage Access Fund                                        | CUSIP: 131582231<br>LEI: 549300O2JSVSVL35QD76 | Long             | EC               | RF                | US        |   1577015 | NS      | $15643986.91  | 3.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert High Yield Bond Fund                       | Calvert High Yield Bond Fund                                        | CUSIP: 131582272<br>LEI: 549300CCIV46L1T22Z08 | Long             | EC               | RF                | US        |    351553 | NS      | $8739595.82   | 2.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Focused Value Fund                         | Calvert Focused Value Fund                                          | CUSIP: 131582132<br>LEI: 549300Z5XUUT6OW4YT43 | Long             | EC               | RF                | US        |   1695295 | NS      | $20784317.26  | 5.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert US Large Cap Growth Responsible Index Fund | Calvert US Large Cap Growth Responsible Index Fund                  | CUSIP: 131618472<br>LEI: 5493000179G37BJVLO31 | Long             | EC               | RF                | US        |    431793 | NS      | $32656536.88  | 8.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Chicago Board of Trade                             | US LONG BOND(CBT) DEC25                                             | CUSIP: 000000000<br>LEI: 549300EX04Q2QBFQTQ27 | N/A              | DIR              |  | US        |        19 | NC      | $45376.84     | 0.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Small/Mid-Cap Fund                         | Calvert Small/Mid-Cap Fund                                          | CUSIP: 13161X717<br>LEI: 549300085L1NSA5LCU34 | Long             | EC               | RF                | US        |     71806 | NS      | $1878437.06   | 0.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Emerging Markets Advancement Fund          | Calvert Emerging Markets Advancement Fund                           | CUSIP: 131649717<br>LEI: 549300OOWWGW13TF0P06 | Long             | EC               | RF                | US        |    933691 | NS      | $14024035.07  | 3.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Emerging Markets Equity Fund               | Calvert Emerging Markets Equity Fund                                | CUSIP: 131649766<br>LEI: 549300L4S5NY62FOKA38 | Long             | EC               | RF                | US        |    319845 | NS      | $7023791.37   | 1.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Flexible Bond Fund                         | Calvert Flexible Bond Fund                                          | CUSIP: 13161X840<br>LEI: 549300HDLJYKTU171023 | Long             | EC               | RF                | US        |    780665 | NS      | $11678748.18  | 2.97%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert US Large Cap Value Responsible Index Fund  | Calvert US Large Cap Value Responsible Index Fund                   | CUSIP: 131618464<br>LEI: 5493005WGBW1GHF4CG37 | Long             | EC               | RF                | US        |    711979 | NS      | $25624129.07  | 6.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Floating-Rate Advantage Fund               | Calvert Floating-Rate Advantage Fund                                | CUSIP: 13161X865<br>LEI: 549300GG1YFY0YH1UJ86 | Long             | EC               | RF                | US        |    883762 | NS      | $7724084.28   | 1.97%             |  |  |  | No            |                  1 | On Loan: No      |
| Morgan Stanley & Co. LLC                           | Morgan Stanley Institutional Liquidity Funds - Government Portfolio | CUSIP: 61747C707<br>LEI: 549300BI6Y5SI6BYPB26 | Long             | STIV             | RF                | US        |   4333425 | NS      | $4333424.73   | 1.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Small Cap Fund                             | Calvert Small Cap Fund                                              | CUSIP: 13161P672<br>LEI: 549300MIJR64EECJ6M85 | Long             | EC               | RF                | US        |    266758 | NS      | $9512603.80   | 2.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Equity Fund                                | Calvert Equity Fund                                                 | CUSIP: 131582280<br>LEI: 5493008KHIQHXPKPLB89 | Long             | EC               | RF                | US        |    197793 | NS      | $19458881.64  | 4.95%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert International Responsible Index Fund       | Calvert International Responsible Index Fund                        | CUSIP: 13161Y848<br>LEI: 5493002R7L7YSTUULM88 | Long             | EC               | RF                | US        |    615273 | NS      | $22771250.55  | 5.80%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert International Equity Fund                  | Calvert International Equity Fund                                   | CUSIP: 131649741<br>LEI: 549300DYXGATLWKZ1990 | Long             | EC               | RF                | US        |    802658 | NS      | $21711904.09  | 5.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Ultra-Short Duration Income Fund           | Calvert Ultra-Short Duration Income Fund                            | CUSIP: 131582314<br>LEI: 549300IXKXR5NQT6M528 | Long             | EC               | RF                | US        |    194285 | NS      | $1925360.33   | 0.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Short-Duration Income Fund                 | Calvert Short-Duration Income Fund                                  | CUSIP: 131582264<br>LEI: 549300KRHGOWQEB8SR45 | Long             | EC               | RF                | US        |    243686 | NS      | $3889228.13   | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2025-10-17

**Name of Applicant:** Calvert Social Investment Fund

**Signature:** James Kirchner

**Name of Signer:** James Kirchner

**Title:** Treasurer