# EDGAR Filing Document

**Accession Number:** 0000067160
**File Stem:** 0001398344-23-004805
**Filing Date:** 2023-2
**Character Count:** 11281
**Document Hash:** b306171b841cb5e7c3f2ed74ce0226cf
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-23-004805.hdr.sgml**: 20230227

**ACCESSION NUMBER**: 0001398344-23-004805

**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:** 23671570

**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 Balanced Allocation Fund (Series ID: S000018540)

| Class ID   | Class Name    | Ticker Symbol   |
|:---|:---|:---|
| C000051436 | Initial Class |  |
| C000067779 | 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 Balanced Allocation Fund

- **b. EDGAR series identifier (if any):** S000018540

- **c. LEI of Series:** 54930063OMLROMEWP985

**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:** $348839999.83

**Total Liabilities:** $376259.49

**Net Assets:** $348463740.34

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000051436 | -2.02%               | 5.38%                | 3.23%                |
| Class ID C000067779 | -2.04%               | 5.30%                | 3.26%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-1141769.71             | $-6014711.41                               |
| Month 2  | $-1330704.45             | $20013824.05                               |
| Month 3  | $-1461829.28             | $12395760.59                               |

### 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        |   1952960 | NS      | $7694662.87   | 2.21%             |  |  |  | No            |                  1 | On Loan: No      |
| MML BLUE CHIP GROWTH FD        | MUTUAL FUND                | CUSIP: 553097742<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |   1317511 | NS      | $14097366.10  | 4.05%             |  |  |  | No            |                  1 | On Loan: No      |
| MML DYNAMIC BOND FUND          | DYNAMIC BD FD CL II        | CUSIP: 55312G689<br>LEI: 54930080JS98DQHKPB49 | Long             | EC               | RF                | US        |   4259157 | NS      | $35436184.31  | 10.17%            |  |  |  | No            |                  1 | On Loan: No      |
| MML EQUITY INCOME FD           | MUTUAL FUND                | CUSIP: 553097775<br>LEI: 549300NLQECK0VBFCG40 | Long             | EC               | RF                | US        |   1578806 | NS      | $15945942.22  | 4.58%             |  |  |  | No            |                  1 | On Loan: No      |
| MML FOCUSED EQUITY FUND        | MUTUAL FUND                | CUSIP: 553097197<br>LEI: 549300SLRZRGITT1HD33 | Long             | EC               | RF                | US        |   4019862 | NS      | $29103798.59  | 8.35%             |  |  |  | No            |                  1 | On Loan: No      |
| MML FOREIGN FD                 | MUTUAL FUND                | CUSIP: 553097650<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |    909811 | NS      | $7569630.96   | 2.17%             |  |  |  | No            |                  1 | On Loan: No      |
| MML FUNDAMENTAL GROWTH FUND    | MUTUAL FUND                | CUSIP: 553097171<br>LEI: 5493004SX3XV4PR5XZ31 | Long             | EC               | RF                | US        |   1578084 | NS      | $13192784.59  | 3.79%             |  |  |  | No            |                  1 | On Loan: No      |
| MML FUNDAMENTAL VALUE FUND     | MUTUAL FUND                | CUSIP: 553097213<br>LEI: 549300C6NIUE0KC40C89 | Long             | EC               | RF                | US        |   1105674 | NS      | $12659963.62  | 3.63%             |  |  |  | No            |                  1 | On Loan: No      |
| MML GLOBAL FD                  | MUTUAL FUND                | CUSIP: 553097668<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |   2908124 | NS      | $11632497.10  | 3.34%             |  |  |  | No            |                  1 | On Loan: No      |
| MML HIGH YIELD FUND            | MUTUAL FUND                | CUSIP: 55312G739<br>LEI: 54930080JS98DQHKPB49 | Long             | EC               | RF                | US        |    269029 | NS      | $2195274.97   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| MML INCOME AND GROWTH FD       | MUTUAL FUND                | CUSIP: 553097767<br>LEI: UQWC7R69CJ01IKYBPI08 | Long             | EC               | RF                | US        |   1139061 | NS      | $12324637.49  | 3.54%             |  |  |  | No            |                  1 | On Loan: No      |
| MML INFLATION PROTECTED BD FD  | MUTUAL FUND                | CUSIP: 55312G200<br>LEI: 54930080JS98DQHKPB49 | Long             | EC               | RF                | US        |   1069704 | NS      | $9274329.64   | 2.66%             |  |  |  | No            |                  1 | On Loan: No      |
| MML INTERNATIONAL EQUITY FUND  | MUTUAL FUND                | CUSIP: 553097155<br>LEI: 549300H6NY8A0TMQJW78 | Long             | EC               | RF                | US        |   2045705 | NS      | $17961285.89  | 5.15%             |  |  |  | No            |                  1 | On Loan: No      |
| MML LARGE CAP GROWTH FD        | MUTUAL FUND                | CUSIP: 553097734<br>LEI: 5493005JIDUT7TI47C17 | Long             | EC               | RF                | US        |    980960 | NS      | $9623219.75   | 2.76%             |  |  |  | No            |                  1 | On Loan: No      |
| MML MANAGED BOND FUND          | MUTUAL FUND                | CUSIP: 55312G309<br>LEI: P1YXM1SSOECE52ITGE86 | Long             | EC               | RF                | US        |   5792419 | NS      | $61396213.40  | 17.62%            |  |  |  | No            |                  1 | On Loan: No      |
| MML MID CAP GROWTH FD          | MUTUAL FUND                | CUSIP: 553097692<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |    982369 | NS      | $8635027.41   | 2.48%             |  |  |  | No            |                  1 | On Loan: No      |
| MML MID CAP VALUE FD           | MUTUAL FUND                | CUSIP: 553097718<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |   1042752 | NS      | $9562032.00   | 2.74%             |  |  |  | No            |                  1 | On Loan: No      |
| MML SHORT DURATION BOND FUND   | MUTUAL FUND                | CUSIP: 55312G754<br>LEI: 54930080JS98DQHKPB49 | Long             | EC               | RF                | US        |   1667075 | NS      | $14420202.05  | 4.14%             |  |  |  | No            |                  1 | On Loan: No      |
| MML SMALL CAP GROWTH EQUITY FD | MUTUAL FUND                | CUSIP: 553097205<br>LEI: HQ4SSOSDU7DRRXL6HW28 | Long             | EC               | RF                | US        |    108452 | NS      | $913465.93    | 0.26%             |  |  |  | No            |                  1 | On Loan: No      |
| MML SMALL COMPANY VALUE FUND   | MUTUAL FUND                | CUSIP: 553097262<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |    520322 | NS      | $3865994.56   | 1.11%             |  |  |  | No            |                  1 | On Loan: No      |
| MML SMALL/MID CAP VALUE        | MUTUAL FUND                | CUSIP: 553097684<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |    252606 | NS      | $2243142.37   | 0.64%             |  |  |  | No            |                  1 | On Loan: No      |
| MML STRG EMERGING MARKETS FUND | MUTUAL FUND                | CUSIP: 55312G770<br>LEI: 54930080JS98DQHKPB49 | Long             | EC               | RF                | US        |    557656 | NS      | $2693477.10   | 0.77%             |  |  |  | No            |                  1 | On Loan: No      |
| MML TOTAL RETURN BOND FUND     | MUTUAL FUND                | CUSIP: 553097221<br>LEI: VQ1HG47DNRJG3HBJH467 | Long             | EC               | RF                | US        |   4946874 | NS      | $43433556.68  | 12.46%            |  |  |  | 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        |    371691 | NS      | $2910343.47   | 0.84%             |  |  |  | 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