# EDGAR Filing Document

**Accession Number:** 0000067160
**File Stem:** 0001752724-25-201554
**Filing Date:** 2025-8
**Character Count:** 12523
**Document Hash:** 2962ffd74560724d66097ac7b4e9f282
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-25-201554.hdr.sgml**: 20250825

**ACCESSION NUMBER**: 0001752724-25-201554

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250825

**DATE AS OF CHANGE**: 20250825

**PERIOD START**: 20251231

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MML SERIES INVESTMENT FUND
- **CENTRAL INDEX KEY:** 0000067160

**ORGANIZATION NAME:**
- **EIN:** 042476032
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-02224
- **FILM NUMBER:** 251249141

**BUSINESS ADDRESS:**
- **STREET 1:** 1295 STATE STREET
- **CITY:** SPRINGFIELD
- **STATE:** MA
- **ZIP:** 01111
- **BUSINESS PHONE:** 413-744-1000

**MAIL ADDRESS:**
- **STREET 1:** 1295 STATE STREET
- **CITY:** SPRINGFIELD
- **STATE:** MA
- **ZIP:** 01111

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MML EQUITY INVESTMENT CO INC
- **DATE OF NAME CHANGE:** 19850227

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MML INVESTMENT CO INC
- **DATE OF NAME CHANGE:** 19811109

## Series and Classes Contracts Data

### MML Growth Allocation Fund (Series ID: S000018542)

| Class ID   | Class Name    | Ticker Symbol   |
|:---|:---|:---|
| C000051438 | Initial Class |  |
| C000067781 | Service Class |  |

## Form NPORT-P: Monthly Portfolio Investments Report

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

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

- **a. Name of Registrant:** MML SERIES INVESTMENT FUND

- **b. Investment Company Act file number:** 811-02224

- **c. CIK number of Registrant:** 0000067160

- **d. LEI of Registrant:** VQ1HG47DNRJG3HBJH467

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

  - **Street Address 1:** 1295 State Street

  - **City:** Springfield

  - **State:** MA

  - **Foreign country:** US

  - **Zip / Postal Code:** 01111-0001

  - **Telephone number:** 413-744-1000

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

- **a. Name of Series:** MML Growth Allocation Fund

- **b. EDGAR series identifier (if any):** S000018542

- **c. LEI of Series:** 549300OHEZTGTW6ANP74

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

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

- **b. Date as of which information is reported:** 2025-06-30

**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:** $902660705.86

**Total Liabilities:** $574741.24

**Net Assets:** $902085964.62

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000051438 | -0.64%               | 3.97%                | 3.20%                |
| Class ID C000067781 | -0.52%               | 3.89%                | 3.12%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-29782697.93            | $4435268.10                                |
| Month 2  | $-118798.04              | $34063545.52                               |
| Month 3  | $179364.94               | $27960523.10                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| MML LARGE CAP GROWTH FD                                              | MML LARGE CAP GROWTH FD                                              | CUSIP: 553097734<br>LEI: N/A                  | Long             | EC               | RF                | US        |   2989048 | NS      | $55327276.39  | 6.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Fidelity VIP Emerging Markets Portfolio                              | Fidelity VIP Emerging Markets Portfolio                              | CUSIP: 922177324<br>LEI: N/A                  | Long             | EC               | RF                | US        |   1031939 | NS      | $13714469.66  | 1.52%             |  |  |  | No            |                  1 | On Loan: No      |
| MML SMALL CAP GROWTH EQUITY FD                                       | MML SMALL CAP GROWTH EQUITY FD                                       | CUSIP: 553097205<br>LEI: N/A                  | Long             | EC               | RF                | US        |    772289 | NS      | $8114300.79   | 0.90%             |  |  |  | No            |                  1 | On Loan: No      |
| MML INCOME AND GROWTH FD                                             | MML INCOME AND GROWTH FD                                             | CUSIP: 553097767<br>LEI: N/A                  | Long             | EC               | RF                | US        |   2370180 | NS      | $24436556.78  | 2.71%             |  |  |  | No            |                  1 | On Loan: No      |
| PIMCO Variable Insurance Trust - Long-Term U.S. Government Portfolio | PIMCO Variable Insurance Trust - Long-Term U.S. Government Portfolio | CUSIP: 693394710<br>LEI: 1HF6TMDVSLQTVB8TF611 | Long             | EC               | RF                | US        |   1038891 | NS      | $7698183.96   | 0.85%             |  |  |  | No            |                  1 | On Loan: No      |
| MML FOREIGN FD                                                       | MML FOREIGN FD                                                       | CUSIP: 553097650<br>LEI: N/A                  | Long             | EC               | RF                | US        |   2753098 | NS      | $31825818.41  | 3.53%             |  |  |  | No            |                  1 | On Loan: No      |
| MML MANAGED BOND FUND                                                | MML MANAGED BOND FUND                                                | CUSIP: 55312G309<br>LEI: N/A                  | Long             | EC               | RF                | US        |   8312552 | NS      | $93160073.41  | 10.33%            |  |  |  | No            |                  1 | On Loan: No      |
| MML BLUE CHIP GROWTH FD                                              | MML BLUE CHIP GROWTH FD                                              | CUSIP: 553097742<br>LEI: N/A                  | Long             | EC               | RF                | US        |   3312625 | NS      | $71983343.29  | 7.98%             |  |  |  | No            |                  1 | On Loan: No      |
| MML INFLATION PROTECTED BD FD                                        | MML INFLATION PROTECTED BD FD                                        | CUSIP: 55312G200<br>LEI: N/A                  | Long             | EC               | RF                | US        |    914975 | NS      | $8198177.94   | 0.91%             |  |  |  | No            |                  1 | On Loan: No      |
| MML MID CAP GROWTH FD                                                | MML MID CAP GROWTH FD                                                | CUSIP: 553097692<br>LEI: N/A                  | Long             | EC               | RF                | US        |   3442775 | NS      | $39660766.03  | 4.40%             |  |  |  | No            |                  1 | On Loan: No      |
| MML FOCUSED EQUITY FUND                                              | MML FOCUSED EQUITY FUND                                              | CUSIP: 553097197<br>LEI: N/A                  | Long             | EC               | RF                | US        |  12183796 | NS      | $94180745.92  | 10.44%            |  |  |  | No            |                  1 | On Loan: No      |
| Invesco VI Global Strategic Income Fund                              | Invesco VI Global Strategic Income Fund                              | CUSIP: 00900X884<br>LEI: 549300NCC31DI84NL880 | Long             | EC               | RF                | US        |   1613282 | NS      | $7469497.48   | 0.83%             |  |  |  | No            |                  1 | On Loan: No      |
| MML EQUITY INCOME FD                                                 | MML EQUITY INCOME FD                                                 | CUSIP: 553097775<br>LEI: N/A                  | Long             | EC               | RF                | US        |  10107467 | NS      | $108352042.50 | 12.01%            |  |  |  | No            |                  1 | On Loan: No      |
| MML SMALL COMPANY VALUE FUND                                         | MML SMALL COMPANY VALUE FUND                                         | CUSIP: 553097262<br>LEI: N/A                  | Long             | EC               | RF                | US        |   1853665 | NS      | $15607860.32  | 1.73%             |  |  |  | No            |                  1 | On Loan: No      |
| MML MID CAP VALUE FD                                                 | MML MID CAP VALUE FD                                                 | CUSIP: 553097718<br>LEI: N/A                  | Long             | EC               | RF                | US        |   3556729 | NS      | $29627551.32  | 3.28%             |  |  |  | No            |                  1 | On Loan: No      |
| MassMutual High Yield Fund                                           | MassMutual High Yield Fund                                           | CUSIP: 57629H327<br>LEI: AQDRLVGKF0IT8SWIC757 | Long             | EC               | RF                | US        |    132627 | NS      | $1079583.23   | 0.12%             |  |  |  | No            |                  1 | On Loan: No      |
| MML GLOBAL FD                                                        | MML GLOBAL FD                                                        | CUSIP: 553097668<br>LEI: N/A                  | Long             | EC               | RF                | US        |   7464397 | NS      | $35903750.24  | 3.98%             |  |  |  | No            |                  1 | On Loan: No      |
| MML SMALL/MID CAP VALUE                                              | MML SMALL/MID CAP VALUE                                              | CUSIP: 553097684<br>LEI: N/A                  | Long             | EC               | RF                | US        |   1029575 | NS      | $9297065.55   | 1.03%             |  |  |  | No            |                  1 | On Loan: No      |
| MML INTERNATIONAL EQUITY FUND                                        | MML INTERNATIONAL EQUITY FUND                                        | CUSIP: 553097155<br>LEI: N/A                  | Long             | EC               | RF                | US        |   8028018 | NS      | $97299577.71  | 10.79%            |  |  |  | No            |                  1 | On Loan: No      |
| MML FUNDAMENTAL GROWTH FUND                                          | MML FUNDAMENTAL GROWTH FUND                                          | CUSIP: 553097171<br>LEI: N/A                  | Long             | EC               | RF                | US        |   3704032 | NS      | $45670715.36  | 5.06%             |  |  |  | No            |                  1 | On Loan: No      |
| MML SHORT DURATION BOND FUND                                         | MML SHORT DURATION BOND FUND                                         | CUSIP: 55312G754<br>LEI: N/A                  | Long             | EC               | RF                | US        |   2096155 | NS      | $19703854.70  | 2.18%             |  |  |  | No            |                  1 | On Loan: No      |
| MML TOTAL RETURN BOND FUND                                           | MML TOTAL RETURN BOND FUND                                           | CUSIP: 553097221<br>LEI: N/A                  | Long             | EC               | RF                | US        |   9265950 | NS      | $84320147.32  | 9.35%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2025-07-28

**Name of Applicant:** MML SERIES INVESTMENT FUND

**Signature:** Renee Hitchcock

**Name of Signer:** Renee Hitchcock

**Title:** CFO and Treasurer