# EDGAR Filing Document

**Accession Number:** 0000067160
**File Stem:** 0001398344-23-004823
**Filing Date:** 2023-2
**Character Count:** 37440
**Document Hash:** 97aba486e75e1ab7f316caa62ede441f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-23-004823.hdr.sgml**: 20230227

**ACCESSION NUMBER**: 0001398344-23-004823

**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:** 23671605

**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 Mid Cap Value Fund (Series ID: S000011488)

| Class ID   | Class Name    | Ticker Symbol   |
|:---|:---|:---|
| C000031718 | Initial Class |  |
| C000067776 | 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 Mid Cap Value Fund

- **b. EDGAR series identifier (if any):** S000011488

- **c. LEI of Series:** OTUI2C89WJJ8N9HWQ618

**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:** $325904595.04

**Total Liabilities:** $28295357.49

**Net Assets:** $297609237.55

**Cash Not Reported:** $469.26

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000031718 | -3.17%               | 6.64%                | 10.17%               |
| Class ID C000067776 | -3.15%               | 6.60%                | 10.08%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $1227853.96              | $-11283164.66                              |
| Month 2  | $3536420.86              | $16492800.25                               |
| Month 3  | $820.76                  | $27421322.51                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| ADVANCE AUTO PARTS INC        | COMMON STOCK USD.0001        | CUSIP: 00751Y106<br>LEI: 529900UCNQ5H9FSL0Y70 | Long             | EC               | CORP              | US        |     24987 | NS      | $3673838.61   | 1.23%             |  |  |  | No            | 1                  | On Loan: No      |
| AFLAC INC                     | COMMON STOCK USD.1           | CUSIP: 001055102<br>LEI: 549300N0B7DOGLXWPP39 | Long             | EC               | CORP              | US        |     27562 | NS      | $1982810.28   | 0.67%             |  |  |  | No            | 1                  | On Loan: No      |
| AKZO NOBEL N.V.               | COMMON STOCK EUR.5           | CUSIP: BJ2KSG907<br>LEI: 724500XYIJUGXAA5QD70 | Long             | EC               | CORP              | NL        |     47654 | NS      | $3179762.55   | 1.07%             |  |  |  | No            | 2                  | On Loan: No      |
| ALLSTATE CORP                 | COMMON STOCK USD.01          | CUSIP: 020002101<br>LEI: OBT0W1ED8G0NWVOLOJ77 | Long             | EC               | CORP              | US        |     46963 | NS      | $6368182.80   | 2.14%             |  |  |  | No            | 1                  | On Loan: No      |
| AMCOR PLC                     | COMMON STOCK USD.01          | CUSIP: G0250X107<br>LEI: 549300GSODGFCDQ3DI89 | Long             | EC               | CORP              | JE        |    234929 | NS      | $2798004.39   | 0.94%             |  |  |  | No            | 1                  | On Loan: No      |
| AMDOCS LTD                    | COMMON STOCK GBP.0001        | CUSIP: G02602103<br>LEI: 549300B3YQBCA32O1V43 | Long             | EC               | CORP              | GG        |     36266 | NS      | $3296579.40   | 1.11%             |  |  |  | No            | 1                  | On Loan: No      |
| AMERIPRISE FINANCIAL INC      | COMMON STOCK USD.01          | CUSIP: 03076C106<br>LEI: 6ZLKQF7QB6JAEKQS5388 | Long             | EC               | CORP              | US        |      3703 | NS      | $1153003.11   | 0.39%             |  |  |  | No            | 1                  | On Loan: No      |
| AMERISOURCEBERGEN CORP        | COMMON STOCK USD.01          | CUSIP: 03073E105<br>LEI: AI8GXW8LG5WK7E9UD086 | Long             | EC               | CORP              | US        |     22862 | NS      | $3788462.02   | 1.27%             |  |  |  | No            | 1                  | On Loan: No      |
| APPLIED MATERIALS INC         | COMMON STOCK USD.01          | CUSIP: 038222105<br>LEI: 41BNNE1AFPNAZELZ6K07 | Long             | EC               | CORP              | US        |     13740 | NS      | $1338001.20   | 0.45%             |  |  |  | No            | 1                  | On Loan: No      |
| APTIV PLC                     | COMMON STOCK USD.01          | CUSIP: G6095L109<br>LEI: N/A                  | Long             | EC               | CORP              | JE        |     13710 | NS      | $1276812.30   | 0.43%             |  |  |  | No            | 1                  | On Loan: No      |
| ATKORE INC                    | COMMON STOCK USD.01          | CUSIP: 047649108<br>LEI: 52990002TI38AM4RPV48 | Long             | EC               | CORP              | US        |     11529 | NS      | $1307619.18   | 0.44%             |  |  |  | No            | 1                  | On Loan: No      |
| ATMOS ENERGY CORP             | COMMON STOCK                 | CUSIP: 049560105<br>LEI: QVLWEGTD2S8GJMO8D383 | Long             | EC               | CORP              | US        |      6859 | NS      | $768688.13    | 0.26%             |  |  |  | No            | 1                  | On Loan: No      |
| AXALTA COATING SYSTEMS LTD    | COMMON STOCK USD1.0          | CUSIP: G0750C108<br>LEI: 529900AGLPA40GV6H619 | Long             | EC               | CORP              | BM        |    109455 | NS      | $2787818.85   | 0.94%             |  |  |  | No            | 1                  | On Loan: No      |
| BAKER HUGHES CO               | COMMON STOCK USD.0001        | CUSIP: 05722G100<br>LEI: 549300XU3XH6F05YEQ93 | Long             | EC               | CORP              | US        |     98471 | NS      | $2907848.63   | 0.98%             |  |  |  | No            | 1                  | On Loan: No      |
| BANK OF NEW YORK MELLON CORP  | COMMON STOCK USD.01          | CUSIP: 064058100<br>LEI: WFLLPEPC7FZXENRZV188 | Long             | EC               | CORP              | US        |    167596 | NS      | $7628969.92   | 2.56%             |  |  |  | No            | 1                  | On Loan: No      |
| BAXTER INTERNATIONAL INC      | COMMON STOCK USD1.0          | CUSIP: 071813109<br>LEI: J5OIVXX3P24RJRW5CK77 | Long             | EC               | CORP              | US        |     29396 | NS      | $1498314.12   | 0.50%             |  |  |  | No            | 1                  | On Loan: No      |
| BEACON ROOFING SUPPLY INC     | COMMON STOCK USD.01          | CUSIP: 073685109<br>LEI: 549300HDXQWWCBOYXP31 | Long             | EC               | CORP              | US        |     30523 | NS      | $1611309.17   | 0.54%             |  |  |  | No            | 1                  | On Loan: No      |
| BECTON DICKINSON AND CO       | COMMON STOCK USD1.0          | CUSIP: 075887109<br>LEI: ICE2EP6D98PQUILVRZ91 | Long             | EC               | CORP              | US        |      5057 | NS      | $1285995.10   | 0.43%             |  |  |  | No            | 1                  | On Loan: No      |
| BORGWARNER INC                | COMMON STOCK USD.01          | CUSIP: 099724106<br>LEI: 549300DSFX2IE88NSX47 | Long             | EC               | CORP              | US        |    113356 | NS      | $4562579.00   | 1.53%             |  |  |  | No            | 1                  | On Loan: No      |
| CAPITOL FEDERAL FINANCIAL IN  | COMMON STOCK USD.01          | CUSIP: 14057J101<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    136550 | NS      | $1181157.50   | 0.40%             |  |  |  | No            | 1                  | On Loan: No      |
| CARDINAL HEALTH INC           | COMMON STOCK                 | CUSIP: 14149Y108<br>LEI: CCU46N3GJMF4OK4N7U60 | Long             | EC               | CORP              | US        |     18365 | NS      | $1411717.55   | 0.47%             |  |  |  | No            | 1                  | On Loan: No      |
| CHUBB LTD                     | COMMON STOCK                 | CUSIP: H1467J104<br>LEI: E0JAN6VLUDI1HITHT809 | Long             | EC               | CORP              | CH        |      3694 | NS      | $814896.40    | 0.27%             |  |  |  | No            | 1                  | On Loan: No      |
| COMPAGNIE DE SAINT GOBAIN     | COMMON STOCK EUR4.0          | CUSIP: 738048909<br>LEI: NFONVGN05Z0FMN5PEC35 | Long             | EC               | CORP              | FR        |     63671 | NS      | $3125850.26   | 1.05%             |  |  |  | No            | 2                  | On Loan: No      |
| CONAGRA BRANDS INC            | COMMON STOCK USD5.0          | CUSIP: 205887102<br>LEI: 54930035UDEIH090K650 | Long             | EC               | CORP              | US        |    141159 | NS      | $5462853.30   | 1.84%             |  |  |  | No            | 1                  | On Loan: No      |
| CORNING INC                   | COMMON STOCK USD.5           | CUSIP: 219350105<br>LEI: 549300X2937PB0CJ7I56 | Long             | EC               | CORP              | US        |     35411 | NS      | $1131027.34   | 0.38%             |  |  |  | No            | 1                  | On Loan: No      |
| CUMMINS INC                   | COMMON STOCK USD2.5          | CUSIP: 231021106<br>LEI: ZUNI8PYC725B6H8JU438 | Long             | EC               | CORP              | US        |      6940 | NS      | $1681492.60   | 0.57%             |  |  |  | No            | 1                  | On Loan: No      |
| Currency Forward Contract     | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |     89625 | PA      | $177.35       | 0.00%             |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract     | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |   2573548 | PA      | $16138.94     | 0.01%             |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract     | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |     78491 | PA      | $323.11       | 0.00%             |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract     | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |     71278 | PA      | $148.69       | 0.00%             |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract     | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |     79795 | PA      | $119.18       | 0.00%             |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract     | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |    513426 | PA      | $-5491.86     | -0.00%            |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract     | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |     75589 | PA      | $-430.66      | -0.00%            |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract     | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |     39792 | PA      | $380.39       | 0.00%             |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract     | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |     28580 | PA      | $234.59       | 0.00%             |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract     | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |  21093472 | PA      | $-118517.17   | -0.04%            |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract     | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |    173360 | PA      | $-1868.11     | -0.00%            |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract     | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |     25192 | PA      | $232.17       | 0.00%             |  |  |  | No            | N/A                | On Loan: No      |
| DENTSPLY SIRONA INC           | COMMON STOCK USD.01          | CUSIP: 24906P109<br>LEI: 9NHEHR1SOZCYXDO8HO28 | Long             | EC               | CORP              | US        |     64153 | NS      | $2042631.52   | 0.69%             |  |  |  | No            | 1                  | On Loan: No      |
| DEVON ENERGY CORP             | COMMON STOCK USD.1           | CUSIP: 25179M103<br>LEI: 54930042348RKR3ZPN35 | Long             | EC               | CORP              | US        |     17223 | NS      | $1059386.73   | 0.36%             |  |  |  | No            | 1                  | On Loan: No      |
| DIAMONDBACK ENERGY INC        | COMMON STOCK USD.01          | CUSIP: 25278X109<br>LEI: 549300R22LSX6OHWEN64 | Long             | EC               | CORP              | US        |     14274 | NS      | $1952397.72   | 0.66%             |  |  |  | No            | 1                  | On Loan: No      |
| DOLLAR TREE INC               | COMMON STOCK USD.01          | CUSIP: 256746108<br>LEI: 549300PMSTQITB1WHR43 | Long             | EC               | CORP              | US        |     33390 | NS      | $4722681.60   | 1.59%             |  |  |  | No            | 1                  | On Loan: No      |
| DUKE ENERGY CORP              | COMMON STOCK USD.001         | CUSIP: 26441C204<br>LEI: I1BZKREC126H0VB1BL91 | Long             | EC               | CORP              | US        |     31510 | NS      | $3245214.90   | 1.09%             |  |  |  | No            | 1                  | On Loan: No      |
| EDISON INTERNATIONAL          | COMMON STOCK                 | CUSIP: 281020107<br>LEI: 549300I7ROF15MAEVP56 | Long             | EC               | CORP              | US        |    100609 | NS      | $6400744.58   | 2.15%             |  |  |  | No            | 1                  | On Loan: No      |
| ELECTRONIC ARTS INC           | COMMON STOCK USD.01          | CUSIP: 285512109<br>LEI: 549300O7A67PUEYKDL45 | Long             | EC               | CORP              | US        |     12746 | NS      | $1557306.28   | 0.52%             |  |  |  | No            | 1                  | On Loan: No      |
| EMBECTA CORP                  | COMMON STOCK USD.01          | CUSIP: 29082K105<br>LEI: 549300RPG8GXVDHNXZ62 | Long             | EC               | CORP              | US        |     82512 | NS      | $2086728.48   | 0.70%             |  |  |  | No            | 1                  | On Loan: No      |
| EMERSON ELECTRIC CO           | COMMON STOCK USD.5           | CUSIP: 291011104<br>LEI: FGLT0EWZSUIRRITFOA30 | Long             | EC               | CORP              | US        |     44857 | NS      | $4308963.42   | 1.45%             |  |  |  | No            | 1                  | On Loan: No      |
| ENTERPRISE PRODUCTS PARTNERS  | MLP                          | CUSIP: 293792107<br>LEI: K4CDIF4M54DJZ6TB4Q48 | Long             | EC               | CORP              | US        |    152754 | NS      | $3684426.48   | 1.24%             |  |  |  | No            | 1                  | On Loan: No      |
| ENVISTA HOLDINGS CORP         | COMMON STOCK USD.01          | CUSIP: 29415F104<br>LEI: 549300BX623VURJZ5269 | Long             | EC               | CORP              | US        |     41497 | NS      | $1397203.99   | 0.47%             |  |  |  | No            | 1                  | On Loan: No      |
| EQT CORP                      | COMMON STOCK                 | CUSIP: 26884L109<br>LEI: 4NT01YGM4X7ZX86ISY52 | Long             | EC               | CORP              | US        |     43943 | NS      | $1486591.69   | 0.50%             |  |  |  | No            | 1                  | On Loan: No      |
| EQUINIX INC                   | REIT USD.001                 | CUSIP: 29444U700<br>LEI: 549300EVUN2BTLJ3GT74 | Long             | EC               | CORP              | US        |      5456 | NS      | $3573843.68   | 1.20%             |  |  |  | No            | 1                  | On Loan: No      |
| ESSEX PROPERTY TRUST INC      | REIT USD.0001                | CUSIP: 297178105<br>LEI: 549300TR2H2VEFX0NC60 | Long             | EC               | CORP              | US        |     14941 | NS      | $3166296.72   | 1.06%             |  |  |  | No            | 1                  | On Loan: No      |
| EVERGY INC                    | COMMON STOCK                 | CUSIP: 30034W106<br>LEI: 549300PGTHDQY6PSUI61 | Long             | EC               | CORP              | US        |     22369 | NS      | $1407681.17   | 0.47%             |  |  |  | No            | 1                  | On Loan: No      |
| EVERSOURCE ENERGY             | COMMON STOCK USD5.0          | CUSIP: 30040W108<br>LEI: SJ7XXD41SQU3ZNWUJ746 | Long             | EC               | CORP              | US        |     17481 | NS      | $1465607.04   | 0.49%             |  |  |  | No            | 1                  | On Loan: No      |
| F5 INC                        | COMMON STOCK                 | CUSIP: 315616102<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     22962 | NS      | $3295276.62   | 1.11%             |  |  |  | No            | 1                  | On Loan: No      |
| FIRST HAWAIIAN INC            | COMMON STOCK USD.01          | CUSIP: 32051X108<br>LEI: 5493002DJSH46F5OLV06 | Long             | EC               | CORP              | US        |    176576 | NS      | $4598039.04   | 1.54%             |  |  |  | No            | 1                  | On Loan: No      |
| FOX CORP   CLASS B            | COMMON STOCK USD.01          | CUSIP: 35137L204<br>LEI: 549300DDU6FDRBIELS05 | Long             | EC               | CORP              | US        |    118651 | NS      | $3375620.95   | 1.13%             |  |  |  | No            | 1                  | On Loan: No      |
| HANOVER INSURANCE GROUP INC/  | COMMON STOCK USD.01          | CUSIP: 410867105<br>LEI: JJYR6MFKFF6CF8DBZ078 | Long             | EC               | CORP              | US        |     17592 | NS      | $2377206.96   | 0.80%             |  |  |  | No            | 1                  | On Loan: No      |
| HCA HEALTHCARE INC            | COMMON STOCK USD.01          | CUSIP: 40412C101<br>LEI: 529900PH4ZGUH2MNEU89 | Long             | EC               | CORP              | US        |      3407 | NS      | $817543.72    | 0.27%             |  |  |  | No            | 1                  | On Loan: No      |
| HEALTHPEAK PROPERTIES INC     | REIT USD1.0                  | CUSIP: 42250P103<br>LEI: PZ9HF5U52KPF0MH0QN75 | Long             | EC               | CORP              | US        |    173509 | NS      | $4349870.63   | 1.46%             |  |  |  | No            | 1                  | On Loan: No      |
| HEARTLAND EXPRESS INC         | COMMON STOCK USD.01          | CUSIP: 422347104<br>LEI: 5299005V45FZIQGLOG39 | Long             | EC               | CORP              | US        |    138412 | NS      | $2123240.08   | 0.71%             |  |  |  | No            | 1                  | On Loan: No      |
| HENKEL AG + CO KGAA VOR PREF  | PREFERENCE                   | CUSIP: 507670909<br>LEI: 549300VZCL1HTH4O4Y49 | Long             | EP               | CORP              | DE        |     43547 | NS      | $3031477.33   | 1.02%             |  |  |  | No            | 2                  | On Loan: No      |
| HENRY SCHEIN INC              | COMMON STOCK USD.01          | CUSIP: 806407102<br>LEI: VGO3WGL8H45T73F4RR92 | Long             | EC               | CORP              | US        |     60490 | NS      | $4831336.30   | 1.62%             |  |  |  | No            | 1                  | On Loan: No      |
| HOLOGIC INC                   | COMMON STOCK USD.01          | CUSIP: 436440101<br>LEI: 549300DYP6F5ZJL0LB74 | Long             | EC               | CORP              | US        |     20296 | NS      | $1518343.76   | 0.51%             |  |  |  | No            | 1                  | On Loan: No      |
| HP INC                        | COMMON STOCK USD.01          | CUSIP: 40434L105<br>LEI: WHKXQACZ14C5XRO8LW03 | Long             | EC               | CORP              | US        |     92128 | NS      | $2475479.36   | 0.83%             |  |  |  | No            | 1                  | On Loan: No      |
| HUNTINGTON INGALLS INDUSTRIE  | COMMON STOCK USD.01          | CUSIP: 446413106<br>LEI: 5TZLZ6WJTBVJ0QWBG121 | Long             | EC               | CORP              | US        |     15981 | NS      | $3686497.08   | 1.24%             |  |  |  | No            | 1                  | On Loan: No      |
| IMI PLC                       | COMMON STOCK GBP.2857        | CUSIP: BGLP8L902<br>LEI: 2138002W9Q21PF751R30 | Long             | EC               | CORP              | GB        |    144106 | NS      | $2243106.64   | 0.75%             |  |  |  | No            | 2                  | On Loan: No      |
| ISHARES RUSSELL MID CAP VALUE | ISHARES RUSSELL MID CAP VALU | CUSIP: 464287473<br>LEI: 5493005J0UKEGJC13J47 | Long             | EC               | RF                | US        |     33239 | NS      | $3501396.26   | 1.18%             |  |  |  | No            | 1                  | On Loan: —       |
| JM SMUCKER CO/THE             | COMMON STOCK                 | CUSIP: 832696405<br>LEI: 5493000WDH6A0LHDJD55 | Long             | EC               | CORP              | US        |     19824 | NS      | $3141311.04   | 1.06%             |  |  |  | No            | 1                  | On Loan: No      |
| JUNIPER NETWORKS INC          | COMMON STOCK USD.00001       | CUSIP: 48203R104<br>LEI: AUHIXNGG7U2U7JEHM527 | Long             | EC               | CORP              | US        |     75835 | NS      | $2423686.60   | 0.81%             |  |  |  | No            | 1                  | On Loan: No      |
| KIMBERLY CLARK CORP           | COMMON STOCK USD1.25         | CUSIP: 494368103<br>LEI: MP3J6QPYPGN75NVW2S34 | Long             | EC               | CORP              | US        |     32396 | NS      | $4397757.00   | 1.48%             |  |  |  | No            | 1                  | On Loan: No      |
| KONINKLIJKE AHOLD DELHAIZE N  | COMMON STOCK EUR.01          | CUSIP: BD0Q39902<br>LEI: 724500C9GNBV20UYRX36 | Long             | EC               | CORP              | NL        |    194993 | NS      | $5602905.64   | 1.88%             |  |  |  | No            | 2                  | On Loan: No      |
| LABORATORY CRP OF AMER HLDGS  | COMMON STOCK USD.1           | CUSIP: 50540R409<br>LEI: OZ7UA8IXAIFILY2VZH07 | Long             | EC               | CORP              | US        |     14010 | NS      | $3299074.80   | 1.11%             |  |  |  | No            | 1                  | On Loan: No      |
| LEGRAND SA                    | COMMON STOCK EUR4.0          | CUSIP: B11ZRK906<br>LEI: 969500XXRPGD7HCAFA90 | Long             | EC               | CORP              | FR        |     29643 | NS      | $2386778.32   | 0.80%             |  |  |  | No            | 2                  | On Loan: No      |
| MICHELIN (CGDE)               | COMMON STOCK EUR.5           | CUSIP: BPBPJ0907<br>LEI: 549300SOSI58J6VIW052 | Long             | EC               | CORP              | FR        |     60906 | NS      | $1693606.76   | 0.57%             |  |  |  | No            | 2                  | On Loan: No      |
| MONDI PLC                     | COMMON STOCK EUR.2           | CUSIP: B1CRLC906<br>LEI: 213800LOZA69QFDC9N34 | Long             | EC               | CORP              | GB        |     20523 | NS      | $348551.88    | 0.12%             |  |  |  | No            | 2                  | On Loan: No      |
| MSC INDUSTRIAL DIRECT CO A    | COMMON STOCK USD.001         | CUSIP: 553530106<br>LEI: 0XVKH0LN6YGOWO2EGO17 | Long             | EC               | CORP              | US        |     50046 | NS      | $4088758.20   | 1.37%             |  |  |  | No            | 1                  | On Loan: No      |
| NORTHERN TRUST CORP           | COMMON STOCK USD1.666666     | CUSIP: 665859104<br>LEI: 549300GLF98S992BC502 | Long             | EC               | CORP              | US        |     92402 | NS      | $8176652.98   | 2.75%             |  |  |  | No            | 1                  | On Loan: No      |
| NORTHWESTERN CORP             | COMMON STOCK USD.01          | CUSIP: 668074305<br>LEI: 3BPWMBHR1R9SHUN7J795 | Long             | EC               | CORP              | US        |     80711 | NS      | $4789390.74   | 1.61%             |  |  |  | No            | 1                  | On Loan: No      |
| NVENT ELECTRIC PLC            | COMMON STOCK USD.01          | CUSIP: G6700G107<br>LEI: N/A                  | Long             | EC               | CORP              | IE        |     89113 | NS      | $3428177.11   | 1.15%             |  |  |  | No            | 1                  | On Loan: No      |
| OMNICOM GROUP                 | COMMON STOCK USD.15          | CUSIP: 681919106<br>LEI: HKUPACFHSSASQK8HLS17 | Long             | EC               | CORP              | US        |     30673 | NS      | $2501996.61   | 0.84%             |  |  |  | No            | 1                  | On Loan: No      |
| OSHKOSH CORP                  | COMMON STOCK USD.01          | CUSIP: 688239201<br>LEI: 549300FEKNPCFSA2B506 | Long             | EC               | CORP              | US        |     62772 | NS      | $5535862.68   | 1.86%             |  |  |  | No            | 1                  | On Loan: No      |
| PACKAGING CORP OF AMERICA     | COMMON STOCK USD.01          | CUSIP: 695156109<br>LEI: 549300XZP8MFZFY8TJ84 | Long             | EC               | CORP              | US        |     36826 | NS      | $4710413.66   | 1.58%             |  |  |  | No            | 1                  | On Loan: No      |
| PHILLIPS 66                   | COMMON STOCK                 | CUSIP: 718546104<br>LEI: 5493005JBO5YSIGK1814 | Long             | EC               | CORP              | US        |     10856 | NS      | $1129892.48   | 0.38%             |  |  |  | No            | 1                  | On Loan: No      |
| PINNACLE WEST CAPITAL         | COMMON STOCK                 | CUSIP: 723484101<br>LEI: TWSEY0NEDUDCKS27AH81 | Long             | EC               | CORP              | US        |     31943 | NS      | $2428945.72   | 0.82%             |  |  |  | No            | 1                  | On Loan: No      |
| PROSPERITY BANCSHARES INC     | COMMON STOCK USD1.0          | CUSIP: 743606105<br>LEI: 549300D003QRZFSQ4N43 | Long             | EC               | CORP              | US        |     53796 | NS      | $3909893.28   | 1.31%             |  |  |  | No            | 1                  | On Loan: No      |
| PUBLIC STORAGE                | REIT USD.1                   | CUSIP: 74460D109<br>LEI: 549300LMZF40TKJ6DM64 | Long             | EC               | CORP              | US        |      9039 | NS      | $2532637.41   | 0.85%             |  |  |  | No            | 1                  | On Loan: No      |
| QUEST DIAGNOSTICS INC         | COMMON STOCK USD.01          | CUSIP: 74834L100<br>LEI: 8MCWUBXQ0WE04KMXBX50 | Long             | EC               | CORP              | US        |     23747 | NS      | $3714980.68   | 1.25%             |  |  |  | No            | 1                  | On Loan: No      |
| REALTY INCOME CORP            | REIT USD1.0                  | CUSIP: 756109104<br>LEI: 549300CUWDAUZSH43859 | Long             | EC               | CORP              | US        |     65998 | NS      | $4186253.14   | 1.41%             |  |  |  | No            | 1                  | On Loan: No      |
| REGENCY CENTERS CORP          | REIT USD.01                  | CUSIP: 758849103<br>LEI: 5493008PTR2GAOYBXW28 | Long             | EC               | CORP              | US        |     59935 | NS      | $3745937.50   | 1.26%             |  |  |  | No            | 1                  | On Loan: No      |
| REINSURANCE GROUP OF AMERICA  | COMMON STOCK USD.01          | CUSIP: 759351604<br>LEI: LORM1GNEU1DKEW527V90 | Long             | EC               | CORP              | US        |     24079 | NS      | $3421385.11   | 1.15%             |  |  |  | No            | 1                  | On Loan: No      |
| REPUBLIC SERVICES INC         | COMMON STOCK USD.01          | CUSIP: 760759100<br>LEI: NKNQHM6BLECKVOQP7O46 | Long             | EC               | CORP              | US        |     10441 | NS      | $1346784.59   | 0.45%             |  |  |  | No            | 1                  | On Loan: No      |
| Repurchase Agreement          | FIXED INC CLEARING CORP.REPO | CUSIP: 85748R009<br>LEI: 549300H47WTHXPU08X20 | Long             | RA               | CORP              | US        |   2953179 | PA      | $2953179.20   | 0.99%             |  |  |  | No            | 1                  | On Loan: No      |
| SODEXO SA                     | COMMON STOCK EUR4.0          | CUSIP: 706271905<br>LEI: 969500LCBOG12HXPYM84 | Long             | EC               | CORP              | FR        |     28944 | NS      | $2768865.38   | 0.93%             |  |  |  | No            | 2                  | On Loan: No      |
| SONOCO PRODUCTS CO            | COMMON STOCK                 | CUSIP: 835495102<br>LEI: GKOMIK4RDJGHEF0VNP11 | Long             | EC               | CORP              | US        |     27535 | NS      | $1671649.85   | 0.56%             |  |  |  | No            | 1                  | On Loan: No      |
| SOUTHWEST AIRLINES CO         | COMMON STOCK USD1.0          | CUSIP: 844741108<br>LEI: UDTZ87G0STFETI6HGH41 | Long             | EC               | CORP              | US        |    147827 | NS      | $4977335.09   | 1.67%             |  |  |  | No            | 1                  | On Loan: No      |
| SPIRE INC                     | COMMON STOCK USD1.0          | CUSIP: 84857L101<br>LEI: 549300NXSY15DRY2R511 | Long             | EC               | CORP              | US        |     85629 | NS      | $5896412.94   | 1.98%             |  |  |  | No            | 1                  | On Loan: No      |
| T ROWE PRICE GROUP INC        | COMMON STOCK USD.2           | CUSIP: 74144T108<br>LEI: 549300SIV6FPS9Y7IH33 | Long             | EC               | CORP              | US        |     40482 | NS      | $4414966.92   | 1.48%             |  |  |  | No            | 1                  | On Loan: No      |
| TE CONNECTIVITY LTD           | COMMON STOCK CHF.57          | CUSIP: H84989104<br>LEI: 894500ZRIX9K13RHXR17 | Long             | EC               | CORP              | CH        |     27466 | NS      | $3153096.80   | 1.06%             |  |  |  | No            | 1                  | On Loan: No      |
| TERADYNE INC                  | COMMON STOCK USD.125         | CUSIP: 880770102<br>LEI: C3X4YJ278QNZHRJULN75 | Long             | EC               | CORP              | US        |     16927 | NS      | $1478573.45   | 0.50%             |  |  |  | No            | 1                  | On Loan: No      |
| TRUIST FINANCIAL CORP         | COMMON STOCK USD5.0          | CUSIP: 89832Q109<br>LEI: 549300DRQQI75D2JP341 | Long             | EC               | CORP              | US        |    117457 | NS      | $5054174.71   | 1.70%             |  |  |  | No            | 1                  | On Loan: No      |
| UNIVERSAL HEALTH SERVICES B   | COMMON STOCK USD.01          | CUSIP: 913903100<br>LEI: 549300YGMGQDO0NMJD09 | Long             | EC               | CORP              | US        |     32131 | NS      | $4526936.59   | 1.52%             |  |  |  | No            | 1                  | On Loan: No      |
| US BANCORP                    | COMMON STOCK USD.01          | CUSIP: 902973304<br>LEI: N1GZ7BBF3NP8GI976H15 | Long             | EC               | CORP              | US        |     71425 | NS      | $3114844.25   | 1.05%             |  |  |  | No            | 1                  | On Loan: No      |
| VICI PROPERTIES INC           | REIT USD.01                  | CUSIP: 925652109<br>LEI: 254900RKH6RY9KCJQH63 | Long             | EC               | CORP              | US        |     26432 | NS      | $856396.80    | 0.29%             |  |  |  | No            | 1                  | On Loan: No      |
| VINCI SA                      | COMMON STOCK EUR2.5          | CUSIP: B1XH02900<br>LEI: 213800WFQ334R8UXUG83 | Long             | EC               | CORP              | FR        |     31720 | NS      | $3168035.49   | 1.06%             |  |  |  | No            | 2                  | On Loan: No      |
| WESTAMERICA BANCORPORATION    | COMMON STOCK                 | CUSIP: 957090103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     22158 | NS      | $1307543.58   | 0.44%             |  |  |  | No            | 1                  | On Loan: No      |
| WEYERHAEUSER CO               | REIT USD1.25                 | CUSIP: 962166104<br>LEI: 08IRJODWFYBI7QWRGS31 | Long             | EC               | CORP              | US        |     26908 | NS      | $834148.00    | 0.28%             |  |  |  | No            | 1                  | On Loan: No      |
| WILLIS TOWERS WATSON PLC      | COMMON STOCK USD.000304635   | CUSIP: G96629103<br>LEI: 549300WHC56FF48KL350 | Long             | EC               | CORP              | IE        |     11308 | NS      | $2765710.64   | 0.93%             |  |  |  | No            | 1                  | On Loan: No      |
| WP CAREY INC                  | REIT USD.001                 | CUSIP: 92936U109<br>LEI: 54930042CRNE713E3Q67 | Long             | EC               | CORP              | US        |     21446 | NS      | $1676004.90   | 0.56%             |  |  |  | No            | 1                  | On Loan: No      |
| ZIMMER BIOMET HOLDINGS INC    | COMMON STOCK USD.01          | CUSIP: 98956P102<br>LEI: 2P2YLDVPES3BXQ1FRB91 | Long             | EC               | CORP              | US        |     70846 | NS      | $9032865.00   | 3.04%             |  |  |  | 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