# EDGAR Filing Document

**Accession Number:** 0000067160
**File Stem:** 0001398344-23-004824
**Filing Date:** 2023-2
**Character Count:** 11284
**Document Hash:** d915e61d9bcc95aed37b7d4658ef9c33
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-23-004824.hdr.sgml**: 20230227

**ACCESSION NUMBER**: 0001398344-23-004824

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230227

**DATE AS OF CHANGE**: 20230227

**PERIOD START**: 20221231

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MML SERIES INVESTMENT FUND
- **CENTRAL INDEX KEY:** 0000067160
- **IRS NUMBER:** 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:** 23671604

**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 Moderate Allocation Fund (Series ID: S000018541)

| Class ID   | Class Name    | Ticker Symbol   |
|:---|:---|:---|
| C000051437 | Initial Class |  |
| C000067780 | 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:** 4137441000

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

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

- **b. EDGAR series identifier (if any):** S000018541

- **c. LEI of Series:** 549300K83VW6FJ00TG70

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

- **a. Date of fiscal year-end:** 2022-12-31

- **b. Date as of which information is reported:** 2022-12-31

**Item A.4. Final filing**

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

### Fund Information

**Total Assets:** $1258510870.52

**Total Liabilities:** $1694071.78

**Net Assets:** $1256816798.74

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000051437 | -2.50%               | 5.89%                | 4.26%                |
| Class ID C000067780 | -2.53%               | 5.85%                | 4.32%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-5789801.33             | $-26486704.84                              |
| Month 2  | $-4990374.54             | $77444877.60                               |
| Month 3  | $-7650780.15             | $60063790.45                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| INVESCO VI GLOBAL STRATEGIC IN | INVESCO GLB STRTR INC SI   | CUSIP: 00900X884<br>LEI: 549300NCC31DI84NL880 | Long             | EC               | RF                | US        |   3307326 | NS      | $13030864.28  | 1.04%             |  |  |  | No            |                  1 | On Loan: No      |
| MML BLUE CHIP GROWTH FD        | MUTUAL FUND                | CUSIP: 553097742<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |   6200702 | NS      | $66347513.37  | 5.28%             |  |  |  | No            |                  1 | On Loan: No      |
| MML DYNAMIC BOND FUND          | DYNAMIC BD FD CL II        | CUSIP: 55312G689<br>LEI: 54930080JS98DQHKPB49 | Long             | EC               | RF                | US        |  11860035 | NS      | $98675490.53  | 7.85%             |  |  |  | No            |                  1 | On Loan: No      |
| MML EQUITY INCOME FD           | MUTUAL FUND                | CUSIP: 553097775<br>LEI: 549300NLQECK0VBFCG40 | Long             | EC               | RF                | US        |   7015116 | NS      | $70852667.20  | 5.64%             |  |  |  | No            |                  1 | On Loan: No      |
| MML FOCUSED EQUITY FUND        | MUTUAL FUND                | CUSIP: 553097197<br>LEI: 549300SLRZRGITT1HD33 | Long             | EC               | RF                | US        |  17159891 | NS      | $124237613.27 | 9.89%             |  |  |  | No            |                  1 | On Loan: No      |
| MML FOREIGN FD                 | MUTUAL FUND                | CUSIP: 553097650<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |   3904380 | NS      | $32484437.45  | 2.58%             |  |  |  | No            |                  1 | On Loan: No      |
| MML FUNDAMENTAL GROWTH FUND    | MUTUAL FUND                | CUSIP: 553097171<br>LEI: 5493004SX3XV4PR5XZ31 | Long             | EC               | RF                | US        |   7266060 | NS      | $60744264.20  | 4.83%             |  |  |  | No            |                  1 | On Loan: No      |
| MML FUNDAMENTAL VALUE FUND     | MUTUAL FUND                | CUSIP: 553097213<br>LEI: 549300C6NIUE0KC40C89 | Long             | EC               | RF                | US        |   5271670 | NS      | $60360627.23  | 4.80%             |  |  |  | No            |                  1 | On Loan: No      |
| MML GLOBAL FD                  | MUTUAL FUND                | CUSIP: 553097668<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |   9841926 | NS      | $39367705.78  | 3.13%             |  |  |  | No            |                  1 | On Loan: No      |
| MML HIGH YIELD FUND            | MUTUAL FUND                | CUSIP: 55312G739<br>LEI: 54930080JS98DQHKPB49 | Long             | EC               | RF                | US        |    966473 | NS      | $7886417.58   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| MML INCOME AND GROWTH FD       | MUTUAL FUND                | CUSIP: 553097767<br>LEI: UQWC7R69CJ01IKYBPI08 | Long             | EC               | RF                | US        |   5314711 | NS      | $57505172.47  | 4.58%             |  |  |  | No            |                  1 | On Loan: No      |
| MML INFLATION PROTECTED BD FD  | MUTUAL FUND                | CUSIP: 55312G200<br>LEI: 54930080JS98DQHKPB49 | Long             | EC               | RF                | US        |   3056844 | NS      | $26502837.89  | 2.11%             |  |  |  | No            |                  1 | On Loan: No      |
| MML INTERNATIONAL EQUITY FUND  | MUTUAL FUND                | CUSIP: 553097155<br>LEI: 549300H6NY8A0TMQJW78 | Long             | EC               | RF                | US        |   9638094 | NS      | $84622465.12  | 6.73%             |  |  |  | No            |                  1 | On Loan: No      |
| MML LARGE CAP GROWTH FD        | MUTUAL FUND                | CUSIP: 553097734<br>LEI: 5493005JIDUT7TI47C17 | Long             | EC               | RF                | US        |   4171788 | NS      | $40925244.42  | 3.26%             |  |  |  | No            |                  1 | On Loan: No      |
| MML MANAGED BOND FUND          | MUTUAL FUND                | CUSIP: 55312G309<br>LEI: P1YXM1SSOECE52ITGE86 | Long             | EC               | RF                | US        |  16641243 | NS      | $176387340.61 | 14.03%            |  |  |  | No            |                  1 | On Loan: No      |
| MML MID CAP GROWTH FD          | MUTUAL FUND                | CUSIP: 553097692<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |   4262469 | NS      | $37467105.07  | 2.98%             |  |  |  | No            |                  1 | On Loan: No      |
| MML MID CAP VALUE FD           | MUTUAL FUND                | CUSIP: 553097718<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |   4511979 | NS      | $41374848.27  | 3.29%             |  |  |  | No            |                  1 | On Loan: No      |
| MML SHORT DURATION BOND FUND   | MUTUAL FUND                | CUSIP: 55312G754<br>LEI: 54930080JS98DQHKPB49 | Long             | EC               | RF                | US        |   5143123 | NS      | $44488012.19  | 3.54%             |  |  |  | No            |                  1 | On Loan: No      |
| MML SMALL CAP GROWTH EQUITY FD | MUTUAL FUND                | CUSIP: 553097205<br>LEI: HQ4SSOSDU7DRRXL6HW28 | Long             | EC               | RF                | US        |    773130 | NS      | $6511907.35   | 0.52%             |  |  |  | No            |                  1 | On Loan: No      |
| MML SMALL COMPANY VALUE FUND   | MUTUAL FUND                | CUSIP: 553097262<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |   2615687 | NS      | $19434556.92  | 1.55%             |  |  |  | No            |                  1 | On Loan: No      |
| MML SMALL/MID CAP VALUE        | MUTUAL FUND                | CUSIP: 553097684<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |   1247905 | NS      | $11081400.27  | 0.88%             |  |  |  | No            |                  1 | On Loan: No      |
| MML STRG EMERGING MARKETS FUND | MUTUAL FUND                | CUSIP: 55312G770<br>LEI: 54930080JS98DQHKPB49 | Long             | EC               | RF                | US        |   3240026 | NS      | $15649323.64  | 1.25%             |  |  |  | No            |                  1 | On Loan: No      |
| MML TOTAL RETURN BOND FUND     | MUTUAL FUND                | CUSIP: 553097221<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |  12838962 | NS      | $112726085.29 | 8.97%             |  |  |  | No            |                  1 | On Loan: No      |
| PIMCO VARIABLE INSURANCE TRUST | PIMCO VIT LG TERM GOVT INS | CUSIP: 693394710<br>LEI: N/A                  | Long             | EC               | RF                | US        |   1168173 | NS      | $9146793.78   | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2023-02-23

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

**Signature:** /s/ Renee Hitchcock

**Name of Signer:** Renee Hitchcock

**Title:** Treasurer and CFO