# EDGAR Filing Document

**Accession Number:** 0000067160
**File Stem:** 0001752724-25-201502
**Filing Date:** 2025-8
**Character Count:** 50523
**Document Hash:** 88bd84a5f817d7b89756015bf3c62b51
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-25-201502.hdr.sgml**: 20250825

**ACCESSION NUMBER**: 0001752724-25-201502

**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:** 251249090

**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 Growth Fund (Series ID: S000011489)

| Class ID   | Class Name    | Ticker Symbol   |
|:---|:---|:---|
| C000031719 | Initial Class |  |
| C000067777 | 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 Mid Cap Growth Fund

- **b. EDGAR series identifier (if any):** S000011489

- **c. LEI of Series:** 5493005302W8XSI8PO73

**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:** $315577362.10

**Total Liabilities:** $13487069.65

**Net Assets:** $302090292.45

**Cash Not Reported:** $985.70

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000067777 | 0.43%                | 5.16%                | 4.09%                |
| Class ID C000031719 | 0.57%                | 5.03%                | 4.16%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $1425148.82              | $-6747.95                                  |
| Month 2  | $1556089.16              | $12805282.09                               |
| Month 3  | $2834030.69              | $9287422.79                                |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Ionis Pharmaceuticals Inc               | Ionis Pharmaceuticals Inc                                                   | CUSIP: 462222100<br>LEI: 549300SI4ZGLG0BLUZ92 | Long             | EC               | CORP              | US        |     64970 | NS      | $2566964.70   | 0.85%             |  |  |  | No            |                  1 | On Loan: —       |
| On Holding AG                           | On Holding AG                                                               | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | CH        |     24556 | NS      | $1278139.80   | 0.42%             |  |  |  | No            |                  1 | On Loan: No      |
| UL Solutions Inc                        | UL Solutions Inc                                                            | CUSIP: 903731107<br>LEI: 549300F7CUV5ESKV9P71 | Long             | EC               | CORP              | US        |     12376 | NS      | $901715.36    | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| EQT Corp                                | EQT Corp                                                                    | CUSIP: 26884L109<br>LEI: 4NT01YGM4X7ZX86ISY52 | Long             | EC               | CORP              | US        |     57285 | NS      | $3340861.20   | 1.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Pure Storage Inc                        | Pure Storage Inc                                                            | CUSIP: 74624M102<br>LEI: 549300NPDB0BZTK3WO90 | Long             | EC               | CORP              | US        |     45589 | NS      | $2625014.62   | 0.87%             |  |  |  | No            |                  1 | On Loan: No      |
| Onestream Inc                           | Onestream Inc                                                               | CUSIP: 68278B107<br>LEI: 254900CRBCHIYDC37W82 | Long             | EC               | CORP              | US        |     23224 | NS      | $657239.20    | 0.22%             |  |  |  | No            |                  1 | On Loan: —       |
| Assurant Inc                            | Assurant Inc                                                                | CUSIP: 04621X108<br>LEI: H3F39CAXWQRVWURFXL38 | Long             | EC               | CORP              | US        |     20466 | NS      | $4041830.34   | 1.34%             |  |  |  | No            |                  1 | On Loan: No      |
| Alnylam Pharmaceuticals Inc             | Alnylam Pharmaceuticals Inc                                                 | CUSIP: 02043Q107<br>LEI: 529900S3ZI14OWRJII50 | Long             | EC               | CORP              | US        |     17353 | NS      | $5658639.77   | 1.87%             |  |  |  | No            |                  1 | On Loan: No      |
| BioNTech SE                             | BioNTech SE                                                                 | CUSIP: 09075V102<br>LEI: 894500UZJ5LG1F8J1U58 | Long             | EC               | CORP              | DE        |     10758 | NS      | $1145404.26   | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| MSCI Inc                                | MSCI Inc                                                                    | CUSIP: 55354G100<br>LEI: 549300HTIN2PD78UB763 | Long             | EC               | CORP              | US        |      4756 | NS      | $2742975.44   | 0.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Atlassian Corp                          | Atlassian Corp                                                              | CUSIP: 049468101<br>LEI: 549300V7ZY5P02D2MY38 | Long             | EC               | CORP              | US        |     11975 | NS      | $2432002.75   | 0.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Amphenol Corp                           | Amphenol Corp                                                               | CUSIP: 032095101<br>LEI: 549300D3L3G0R4U4VT04 | Long             | EC               | CORP              | US        |     29641 | NS      | $2927048.75   | 0.97%             |  |  |  | No            |                  1 | On Loan: No      |
| Hilton Worldwide Holdings Inc           | Hilton Worldwide Holdings Inc                                               | CUSIP: 43300A203<br>LEI: 549300HVGPK36ICB0B89 | Long             | EC               | CORP              | US        |     18483 | NS      | $4922762.22   | 1.63%             |  |  |  | No            |                  1 | On Loan: No      |
| SailPoint Inc                           | SailPoint Inc                                                               | CUSIP: 78781J109<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     13128 | NS      | $300106.08    | 0.10%             |  |  |  | No            |                  1 | On Loan: No      |
| MarketAxess Holdings Inc                | MarketAxess Holdings Inc                                                    | CUSIP: 57060D108<br>LEI: 5493002U1CA1XJOVID83 | Long             | EC               | CORP              | US        |     11522 | NS      | $2573323.48   | 0.85%             |  |  |  | No            |                  1 | On Loan: No      |
| Zscaler Inc                             | Zscaler Inc                                                                 | CUSIP: 98980G102<br>LEI: 529900MZ0RTK1BWRNF46 | Long             | EC               | CORP              | US        |     11732 | NS      | $3683144.08   | 1.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Ball Corp                               | Ball Corp                                                                   | CUSIP: 058498106<br>LEI: 0BGI85ALH27ZJP15DY16 | Long             | EC               | CORP              | US        |     62205 | NS      | $3489078.45   | 1.15%             |  |  |  | No            |                  1 | On Loan: No      |
| T. Rowe Price Treasury Reserve Fund     | T. Rowe Price Treasury Reserve Fund                                         | CUSIP: 76105Y208<br>LEI: 5493007QR86JJLYO6D96 | Long             | STIV             | RF                | US        |       103 | NS      | $102.84       | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| T. Rowe Price Treasury Reserve Fund     | T. Rowe Price Treasury Reserve Fund                                         | CUSIP: 76105Y208<br>LEI: 5493007QR86JJLYO6D96 | Long             | STIV             | RF                | US        |         7 | NS      | $6.93         | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Tradeweb Markets Inc                    | Tradeweb Markets Inc                                                        | CUSIP: 892672106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     12724 | NS      | $1862793.60   | 0.62%             |  |  |  | No            |                  1 | On Loan: No      |
| MACOM Technology Solutions Holdings Inc | MACOM Technology Solutions Holdings Inc                                     | CUSIP: 55405Y100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      6566 | NS      | $940842.14    | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Planet Fitness Inc                      | Planet Fitness Inc                                                          | CUSIP: 72703H101<br>LEI: 549300LLE5HUPF6H8G33 | Long             | EC               | CORP              | US        |     33764 | NS      | $3681964.20   | 1.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Agilent Technologies Inc                | Agilent Technologies Inc                                                    | CUSIP: 00846U101<br>LEI: QUIX8Y7A2WP0XRMW7G29 | Long             | EC               | CORP              | US        |     42132 | NS      | $4971997.32   | 1.65%             |  |  |  | No            |                  1 | On Loan: No      |
| State Street Global Advisors            | State Street Navigator Securities Lending Government Money Market Portfolio | CUSIP: 857509301<br>LEI: 5493008BJIBKQ5KTIF74 | Long             | STIV             | RF                | US        |    762129 | NS      | $762129.00    | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Burlington Stores Inc                   | Burlington Stores Inc                                                       | CUSIP: 122017106<br>LEI: 5299003Z37DVGKKC1W09 | Long             | EC               | CORP              | US        |     11310 | NS      | $2631158.40   | 0.87%             |  |  |  | No            |                  1 | On Loan: No      |
| HubSpot Inc                             | HubSpot Inc                                                                 | CUSIP: 443573100<br>LEI: 529900BLNVEW0MVKJB37 | Long             | EC               | CORP              | US        |      1542 | NS      | $858323.46    | 0.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Cooper Cos Inc/The                      | Cooper Cos Inc/The                                                          | CUSIP: 216648501<br>LEI: QJKMVPIGLH7530PCUE20 | Long             | EC               | CORP              | US        |     37722 | NS      | $2684297.52   | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Cheniere Energy Inc                     | Cheniere Energy Inc                                                         | CUSIP: 16411R208<br>LEI: MIHC87W9WTYSYZWV1J40 | Long             | EC               | CORP              | US        |     21629 | NS      | $5267094.08   | 1.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Casey's General Stores Inc              | Casey's General Stores Inc                                                  | CUSIP: 147528103<br>LEI: 549300CAFWSI86V66Q65 | Long             | EC               | CORP              | US        |      6412 | NS      | $3271851.24   | 1.08%             |  |  |  | No            |                  1 | On Loan: No      |
| Bruker Corp                             | Bruker Corp                                                                 | CUSIP: 116794108<br>LEI: LEBZ6VLQ6I8XB1NHVY15 | Long             | EC               | CORP              | US        |     47912 | NS      | $1973974.40   | 0.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Alcon AG                                | Alcon AG                                                                    | CUSIP: 000000000<br>LEI: 549300LDT5AP8S0NBM78 | Long             | EC               | CORP              | CH        |     30261 | NS      | $2671441.08   | 0.88%             |  |  |  | No            |                  1 | On Loan: —       |
| Viking Holdings Ltd                     | Viking Holdings Ltd                                                         | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | BM        |     65350 | NS      | $3482501.50   | 1.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Manhattan Associates Inc                | Manhattan Associates Inc                                                    | CUSIP: 562750109<br>LEI: 529900Q1GJP7KD52SW51 | Long             | EC               | CORP              | US        |      5599 | NS      | $1105634.53   | 0.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Microchip Technology Inc                | Microchip Technology Inc                                                    | CUSIP: 595017104<br>LEI: 5493007PTFULNYZJ1R12 | Long             | EC               | CORP              | US        |     69288 | NS      | $4875796.56   | 1.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Ascendis Pharma A/S                     | Ascendis Pharma A/S                                                         | CUSIP: 04351P101<br>LEI: 549300B66JN3W3J8GH73 | Long             | EC               | CORP              | DK        |     10946 | NS      | $1889279.60   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| NXP Semiconductors NV                   | NXP Semiconductors NV                                                       | CUSIP: 000000000<br>LEI: 724500M9BY5293JDF951 | Long             | EC               | CORP              | NL        |      9419 | NS      | $2057957.31   | 0.68%             |  |  |  | No            |                  1 | On Loan: No      |
| Raymond James Financial Inc             | Raymond James Financial Inc                                                 | CUSIP: 754730109<br>LEI: RGUZHJ05YTITL6D76949 | Long             | EC               | CORP              | US        |     21563 | NS      | $3307117.31   | 1.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Biogen Inc                              | Biogen Inc                                                                  | CUSIP: 09062X103<br>LEI: W8J5WZB5IY3K0NDQT671 | Long             | EC               | CORP              | US        |      5464 | NS      | $686223.76    | 0.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Old Dominion Freight Line Inc           | Old Dominion Freight Line Inc                                               | CUSIP: 679580100<br>LEI: 5299009TWK32WE417T96 | Long             | EC               | CORP              | US        |     15235 | NS      | $2472640.50   | 0.82%             |  |  |  | No            |                  1 | On Loan: No      |
| IDEX Corp                               | IDEX Corp                                                                   | CUSIP: 45167R104<br>LEI: 549300U5Y5EL6PHYLF13 | Long             | EC               | CORP              | US        |      7660 | NS      | $1344866.20   | 0.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Tyler Technologies Inc                  | Tyler Technologies Inc                                                      | CUSIP: 902252105<br>LEI: 25490040SMU4Z8LBCW70 | Long             | EC               | CORP              | US        |      8476 | NS      | $5024911.84   | 1.66%             |  |  |  | No            |                  1 | On Loan: No      |
| Sealed Air Corp                         | Sealed Air Corp                                                             | CUSIP: 81211K100<br>LEI: Q0M0CZB4YN6JZ65WXI09 | Long             | EC               | CORP              | US        |     49714 | NS      | $1542625.42   | 0.51%             |  |  |  | No            |                  1 | On Loan: —       |
| Align Technology Inc                    | Align Technology Inc                                                        | CUSIP: 016255101<br>LEI: 549300N5YSE0U3LCP840 | Long             | EC               | CORP              | US        |      9459 | NS      | $1790872.47   | 0.59%             |  |  |  | No            |                  1 | On Loan: No      |
| Dollar Tree Inc                         | Dollar Tree Inc                                                             | CUSIP: 256746108<br>LEI: 549300PMSTQITB1WHR43 | Long             | EC               | CORP              | US        |     41903 | NS      | $4150073.12   | 1.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Revolution Medicines Inc                | Revolution Medicines Inc                                                    | CUSIP: 76155X100<br>LEI: 549300JU3X0LBCQ65892 | Long             | EC               | CORP              | US        |     15557 | NS      | $572342.03    | 0.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Veeva Systems Inc                       | Veeva Systems Inc                                                           | CUSIP: 922475108<br>LEI: 549300YZEXPDB92M2F02 | Long             | EC               | CORP              | US        |     22948 | NS      | $6608565.04   | 2.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Trade Desk Inc/The                      | Trade Desk Inc/The                                                          | CUSIP: 88339J105<br>LEI: 549300GXPD31VT3E0P46 | Long             | EC               | CORP              | US        |     40447 | NS      | $2911779.53   | 0.96%             |  |  |  | No            |                  1 | On Loan: No      |
| StandardAero Inc                        | StandardAero Inc                                                            | CUSIP: 85423L103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     34509 | NS      | $1092209.85   | 0.36%             |  |  |  | No            |                  1 | On Loan: No      |
| T. Rowe Price Treasury Reserve Fund     | T. Rowe Price Treasury Reserve Fund                                         | CUSIP: 76105Y208<br>LEI: 5493007QR86JJLYO6D96 | Long             | STIV             | RF                | US        |         1 | NS      | $0.57         | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Monday.com Ltd                          | Monday.com Ltd                                                              | CUSIP: 000000000<br>LEI: 984500MDAFVD86E3B328 | Long             | EC               | CORP              | IL        |      4749 | NS      | $1493465.52   | 0.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Wingstop Inc                            | Wingstop Inc                                                                | CUSIP: 974155103<br>LEI: 549300SSH3F8HPIM3Q47 | Long             | EC               | CORP              | US        |      2682 | NS      | $903136.68    | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Duolingo Inc                            | Duolingo Inc                                                                | CUSIP: 26603R106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      4075 | NS      | $1670831.50   | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| CRISPR Therapeutics AG                  | CRISPR Therapeutics AG                                                      | CUSIP: 000000000<br>LEI: 506700O6IRRIQLT3W370 | Long             | EC               | CORP              | CH        |     15971 | NS      | $776829.44    | 0.26%             |  |  |  | No            |                  1 | On Loan: —       |
| Quanta Services Inc                     | Quanta Services Inc                                                         | CUSIP: 74762E102<br>LEI: SHVRXXEACT60MMH07S24 | Long             | EC               | CORP              | US        |      4186 | NS      | $1582642.88   | 0.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Gartner Inc                             | Gartner Inc                                                                 | CUSIP: 366651107<br>LEI: PP55B5R38BFB8O8HH686 | Long             | EC               | CORP              | US        |      6509 | NS      | $2631067.98   | 0.87%             |  |  |  | No            |                  1 | On Loan: No      |
| MongoDB Inc                             | MongoDB Inc                                                                 | CUSIP: 60937P106<br>LEI: 549300TPTG69WKWE1Z37 | Long             | EC               | CORP              | US        |      2645 | NS      | $555423.55    | 0.18%             |  |  |  | No            |                  1 | On Loan: No      |
| TransUnion                              | TransUnion                                                                  | CUSIP: 89400J107<br>LEI: 549300ZS772LUNUMRB03 | Long             | EC               | CORP              | US        |     27292 | NS      | $2401696.00   | 0.80%             |  |  |  | No            |                  1 | On Loan: No      |
| Corning Inc                             | Corning Inc                                                                 | CUSIP: 219350105<br>LEI: 549300X2937PB0CJ7I56 | Long             | EC               | CORP              | US        |     23345 | NS      | $1227713.55   | 0.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Axis Capital Holdings Ltd               | Axis Capital Holdings Ltd                                                   | CUSIP: 000000000<br>LEI: 635400VD2NQBYAHMEM55 | Long             | EC               | CORP              | BM        |     15868 | NS      | $1647415.76   | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| McCormick & Co Inc/MD                   | McCormick & Co Inc/MD                                                       | CUSIP: 579780206<br>LEI: 549300JQQA6MQ4OJP259 | Long             | EC               | CORP              | US        |     27692 | NS      | $2099607.44   | 0.70%             |  |  |  | No            |                  1 | On Loan: No      |
| Ralliant Corp                           | Ralliant Corp                                                               | CUSIP: 750940108<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     15584 | NS      | $755652.06    | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Martin Marietta Materials Inc           | Martin Marietta Materials Inc                                               | CUSIP: 573284106<br>LEI: 5299005MZ4WZECVATV08 | Long             | EC               | CORP              | US        |      6020 | NS      | $3304739.20   | 1.09%             |  |  |  | No            |                  1 | On Loan: No      |
| CoStar Group Inc                        | CoStar Group Inc                                                            | CUSIP: 22160N109<br>LEI: 984500Q1D53D08E2E698 | Long             | EC               | CORP              | US        |     33143 | NS      | $2664697.20   | 0.88%             |  |  |  | No            |                  1 | On Loan: No      |
| BWX Technologies Inc                    | BWX Technologies Inc                                                        | CUSIP: 05605H100<br>LEI: 549300NP85N265KWMS58 | Long             | EC               | CORP              | US        |     23317 | NS      | $3359047.02   | 1.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Fixed Income Clearing Corp              | FIXED INC CLEARING CORP.REPO                                                | CUSIP: 000000000<br>LEI: 549300H47WTHXPU08X20 | Long             | RA               | CORP              | US        |   9124574 | PA      | $9124574.46   | 3.02%             |  |  |  | No            |                  2 | On Loan: No      |
| Texas Roadhouse Inc                     | Texas Roadhouse Inc                                                         | CUSIP: 882681109<br>LEI: 5299002Y1CNRPDGXTQ75 | Long             | EC               | CORP              | US        |     10170 | NS      | $1905959.70   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Markel Group Inc                        | Markel Group Inc                                                            | CUSIP: 570535104<br>LEI: 549300SCNO12JLWIK605 | Long             | EC               | CORP              | US        |       802 | NS      | $1601882.72   | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Caris Life Sciences Inc                 | Caris Life Sciences Inc                                                     | CUSIP: 142152107<br>LEI: 549300LX5LO78M5VPY43 | Long             | EC               | CORP              | US        |     24765 | NS      | $661720.80    | 0.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Booz Allen Hamilton Holding Corp        | Booz Allen Hamilton Holding Corp                                            | CUSIP: 099502106<br>LEI: 529900JPV47PIUWMA015 | Long             | EC               | CORP              | US        |     10366 | NS      | $1079411.58   | 0.36%             |  |  |  | No            |                  1 | On Loan: No      |
| T. Rowe Price Treasury Reserve Fund     | T. Rowe Price Treasury Reserve Fund                                         | CUSIP: 76105Y208<br>LEI: 5493007QR86JJLYO6D96 | Long             | STIV             | RF                | US        |         1 | NS      | $1.32         | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Reddit Inc                              | Reddit Inc                                                                  | CUSIP: 75734B100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     12559 | NS      | $1891008.63   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Bright Horizons Family Solutions Inc    | Bright Horizons Family Solutions Inc                                        | CUSIP: 109194100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      9118 | NS      | $1126893.62   | 0.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Vaxcyte Inc                             | Vaxcyte Inc                                                                 | CUSIP: 92243G108<br>LEI: 254900M7NMHTGASX8D95 | Long             | EC               | CORP              | US        |     16439 | NS      | $534431.89    | 0.18%             |  |  |  | No            |                  1 | On Loan: No      |
| Veralto Corp                            | Veralto Corp                                                                | CUSIP: 92338C103<br>LEI: 635400FJE6GSOJUSNY27 | Long             | EC               | CORP              | US        |     17276 | NS      | $1744012.20   | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Paylocity Holding Corp                  | Paylocity Holding Corp                                                      | CUSIP: 70438V106<br>LEI: 549300VH75FTB4DIEE07 | Long             | EC               | CORP              | US        |     19214 | NS      | $3481384.66   | 1.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Match Group Inc                         | Match Group Inc                                                             | CUSIP: 57667L107<br>LEI: 15OMOPB0A8K0EFUVD031 | Long             | EC               | CORP              | US        |     39052 | NS      | $1206316.28   | 0.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Domino's Pizza Inc                      | Domino's Pizza Inc                                                          | CUSIP: 25754A201<br>LEI: 25490005ZWM1IF9UXU57 | Long             | EC               | CORP              | US        |      9686 | NS      | $4364511.60   | 1.44%             |  |  |  | No            |                  1 | On Loan: No      |
| Corpay Inc                              | Corpay Inc                                                                  | CUSIP: 219948106<br>LEI: 549300DG6RR0NQSFLN74 | Long             | EC               | CORP              | US        |      7060 | NS      | $2342649.20   | 0.78%             |  |  |  | No            |                  1 | On Loan: No      |
| TechnipFMC PLC                          | TechnipFMC PLC                                                              | CUSIP: 000000000<br>LEI: 549300D5I93QWCJTCK36 | Long             | EC               | CORP              | GB        |    126473 | NS      | $4355730.12   | 1.44%             |  |  |  | No            |                  1 | On Loan: No      |
| DraftKings Inc                          | DraftKings Inc                                                              | CUSIP: 26142V105<br>LEI: 2549006G33IUL6IVOD83 | Long             | EC               | CORP              | US        |     97066 | NS      | $4163160.74   | 1.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Ross Stores Inc                         | Ross Stores Inc                                                             | CUSIP: 778296103<br>LEI: 549300ENZFLPGRDFZQ60 | Long             | EC               | CORP              | US        |     27642 | NS      | $3526566.36   | 1.17%             |  |  |  | No            |                  1 | On Loan: No      |
| ITT Inc                                 | ITT Inc                                                                     | CUSIP: 45073V108<br>LEI: 549300KDSERHTJOXUS80 | Long             | EC               | CORP              | US        |     10214 | NS      | $1601861.62   | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Lululemon Athletica Inc                 | Lululemon Athletica Inc                                                     | CUSIP: 550021109<br>LEI: 549300D9GZ4BMLDW5T40 | Long             | EC               | CORP              | US        |      5741 | NS      | $1363946.78   | 0.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Waste Connections Inc                   | Waste Connections Inc                                                       | CUSIP: 94106B101<br>LEI: 549300HDLRTPBQU69P29 | Long             | EC               | CORP              | CA        |      5974 | NS      | $1115465.28   | 0.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Molina Healthcare Inc                   | Molina Healthcare Inc                                                       | CUSIP: 60855R100<br>LEI: 549300NQQCEQ46YHZ591 | Long             | EC               | CORP              | US        |      6005 | NS      | $1788889.50   | 0.59%             |  |  |  | No            |                  1 | On Loan: No      |
| CCC Intelligent Solutions Holdings Inc  | CCC Intelligent Solutions Holdings Inc                                      | CUSIP: 12510Q100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    301282 | NS      | $2835063.62   | 0.94%             |  |  |  | No            |                  1 | On Loan: —       |
| Avery Dennison Corp                     | Avery Dennison Corp                                                         | CUSIP: 053611109<br>LEI: 549300PW7VPFCYKLIV37 | Long             | EC               | CORP              | US        |     19644 | NS      | $3446932.68   | 1.14%             |  |  |  | No            |                  1 | On Loan: No      |
| Esab Corp                               | Esab Corp                                                                   | CUSIP: 29605J106<br>LEI: 549300ZNV0SWBXEIWT04 | Long             | EC               | CORP              | US        |     27419 | NS      | $3305360.45   | 1.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Roper Technologies Inc                  | Roper Technologies Inc                                                      | CUSIP: 776696106<br>LEI: 54930003T4SXCIWVXY35 | Long             | EC               | CORP              | US        |      1366 | NS      | $774303.44    | 0.26%             |  |  |  | No            |                  1 | On Loan: No      |
| JB Hunt Transport Services Inc          | JB Hunt Transport Services Inc                                              | CUSIP: 445658107<br>LEI: 549300XCD1MPI1C5GK90 | Long             | EC               | CORP              | US        |     13158 | NS      | $1889488.80   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Yum! Brands Inc                         | Yum! Brands Inc                                                             | CUSIP: 988498101<br>LEI: 549300JE8XHZZ7OHN517 | Long             | EC               | CORP              | US        |     31911 | NS      | $4728571.98   | 1.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Zoom Communications Inc                 | Zoom Communications Inc                                                     | CUSIP: 98980L101<br>LEI: 549300T9GCHU0ODOM055 | Long             | EC               | CORP              | US        |     33519 | NS      | $2613811.62   | 0.87%             |  |  |  | No            |                  1 | On Loan: No      |
| Live Nation Entertainment Inc           | Live Nation Entertainment Inc                                               | CUSIP: 538034109<br>LEI: 5493007B9BM9ZXJINO78 | Long             | EC               | CORP              | US        |      3785 | NS      | $572594.80    | 0.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Maplebear Inc                           | Maplebear Inc                                                               | CUSIP: 565394103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     29831 | NS      | $1349554.44   | 0.45%             |  |  |  | No            |                  1 | On Loan: —       |
| Ferguson Enterprises Inc                | Ferguson Enterprises Inc                                                    | CUSIP: 31488V107<br>LEI: 2138003JYQMRP3SLX189 | Long             | EC               | CORP              | US        |     12824 | NS      | $2792426.00   | 0.92%             |  |  |  | No            |                  1 | On Loan: No      |
| PTC Inc                                 | PTC Inc                                                                     | CUSIP: 69370C100<br>LEI: 54930050SSMU8SKDJ030 | Long             | EC               | CORP              | US        |     32578 | NS      | $5614492.52   | 1.86%             |  |  |  | No            |                  1 | On Loan: No      |
| Ulta Beauty Inc                         | Ulta Beauty Inc                                                             | CUSIP: 90384S303<br>LEI: 529900CIV6HN8M28YM82 | Long             | EC               | CORP              | US        |      4471 | NS      | $2091623.22   | 0.69%             |  |  |  | No            |                  1 | On Loan: No      |
| Ingersoll Rand Inc                      | Ingersoll Rand Inc                                                          | CUSIP: 45687V106<br>LEI: 5299004C02FMZCUOIR50 | Long             | EC               | CORP              | US        |     51583 | NS      | $4290673.94   | 1.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Monolithic Power Systems Inc            | Monolithic Power Systems Inc                                                | CUSIP: 609839105<br>LEI: 529900TB7O85LSZ1XU31 | Long             | EC               | CORP              | US        |      4866 | NS      | $3558895.08   | 1.18%             |  |  |  | No            |                  1 | On Loan: No      |
| Textron Inc                             | Textron Inc                                                                 | CUSIP: 883203101<br>LEI: 3PPKBHUG1HD6BO7RNR87 | Long             | EC               | CORP              | US        |     59552 | NS      | $4781430.08   | 1.58%             |  |  |  | No            |                  1 | On Loan: No      |
| T. Rowe Price Treasury Reserve Fund     | T. Rowe Price Treasury Reserve Fund                                         | CUSIP: 76105Y208<br>LEI: 5493007QR86JJLYO6D96 | Long             | STIV             | RF                | US        |         1 | NS      | $0.55         | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Masimo Corp                             | Masimo Corp                                                                 | CUSIP: 574795100<br>LEI: 549300Q4A8JK0PIYCU29 | Long             | EC               | CORP              | US        |      4376 | NS      | $736130.72    | 0.24%             |  |  |  | No            |                  1 | On Loan: —       |
| Liberty Media Corp-Liberty Formula One  | Liberty Media Corp-Liberty Formula One                                      | CUSIP: 531229755<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     43022 | NS      | $4495799.00   | 1.49%             |  |  |  | No            |                  1 | On Loan: No      |
| XPO Inc                                 | XPO Inc                                                                     | CUSIP: 983793100<br>LEI: 54930096DB9LCLPN7H13 | Long             | EC               | CORP              | US        |     11929 | NS      | $1506513.41   | 0.50%             |  |  |  | No            |                  1 | On Loan: —       |
| Avantor Inc                             | Avantor Inc                                                                 | CUSIP: 05352A100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    212204 | NS      | $2856265.84   | 0.95%             |  |  |  | No            |                  1 | On Loan: No      |
| Birkenstock Holding Plc                 | Birkenstock Holding Plc                                                     | CUSIP: 000000000<br>LEI: 529900CQ8LQKQ7LIT631 | Long             | EC               | CORP              | JE        |     34081 | NS      | $1676103.58   | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Verisk Analytics Inc                    | Verisk Analytics Inc                                                        | CUSIP: 92345Y106<br>LEI: 549300I1YSWNIRKBWP67 | Long             | EC               | CORP              | US        |      4639 | NS      | $1445048.50   | 0.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Keysight Technologies Inc               | Keysight Technologies Inc                                                   | CUSIP: 49338L103<br>LEI: 549300GLKVIO8YRCYN02 | Long             | EC               | CORP              | US        |     17301 | NS      | $2834941.86   | 0.94%             |  |  |  | No            |                  1 | On Loan: No      |
| Fortive Corp                            | Fortive Corp                                                                | CUSIP: 34959J108<br>LEI: 549300MU9YQJYHDQEF63 | Long             | EC               | CORP              | US        |     46751 | NS      | $2437129.63   | 0.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Cytokinetics Inc                        | Cytokinetics Inc                                                            | CUSIP: 23282W605<br>LEI: 549300BE5DY1HW7IHA64 | Long             | EC               | CORP              | US        |     23744 | NS      | $784501.76    | 0.26%             |  |  |  | No            |                  1 | On Loan: —       |
| Cboe Global Markets Inc                 | Cboe Global Markets Inc                                                     | CUSIP: 12503M108<br>LEI: 529900RLNSGA90UPEH54 | Long             | EC               | CORP              | US        |     11490 | NS      | $2679582.90   | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Teleflex Inc                            | Teleflex Inc                                                                | CUSIP: 879369106<br>LEI: UUL85LWXB4NGSWWXIQ25 | Long             | EC               | CORP              | US        |     32325 | NS      | $3825987.00   | 1.27%             |  |  |  | No            |                  1 | On Loan: No      |
| New York Times Co/The                   | New York Times Co/The                                                       | CUSIP: 650111107<br>LEI: 529900J1WEMMIW7BOH57 | Long             | EC               | CORP              | US        |     40886 | NS      | $2288798.28   | 0.76%             |  |  |  | No            |                  1 | On Loan: No      |
| Equifax Inc                             | Equifax Inc                                                                 | CUSIP: 294429105<br>LEI: 5493004MCF8JDC86VS77 | Long             | EC               | CORP              | US        |     10447 | NS      | $2709638.39   | 0.90%             |  |  |  | No            |                  1 | On Loan: No      |
| Mettler-Toledo International Inc        | Mettler-Toledo International Inc                                            | CUSIP: 592688105<br>LEI: 5493000BD5GJNUDIUG10 | Long             | EC               | CORP              | US        |      2878 | NS      | $3380844.16   | 1.12%             |  |  |  | No            |                  1 | On Loan: No      |
| TPG Inc                                 | TPG Inc                                                                     | CUSIP: 872657101<br>LEI: 549300NLO4R8MX77XJ02 | Long             | EC               | CORP              | US        |     17790 | NS      | $933085.50    | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| QuidelOrtho Corp                        | QuidelOrtho Corp                                                            | CUSIP: 219798105<br>LEI: 549300YU8CMO9HF53113 | Long             | EC               | CORP              | US        |     25845 | NS      | $744852.90    | 0.25%             |  |  |  | No            |                  1 | On Loan: —       |
| Encompass Health Corp                   | Encompass Health Corp                                                       | CUSIP: 29261A100<br>LEI: 549300FVRPM9DRQZRG64 | Long             | EC               | CORP              | US        |     11305 | NS      | $1386332.15   | 0.46%             |  |  |  | No            |                  1 | On Loan: No      |
| Toast Inc                               | Toast Inc                                                                   | CUSIP: 888787108<br>LEI: 549300TN1PZNLCD4I551 | Long             | EC               | CORP              | US        |     74780 | NS      | $3312006.20   | 1.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Expand Energy Corp                      | Expand Energy Corp                                                          | CUSIP: 165167735<br>LEI: X2MT1W32SPAZ9WSKLE78 | Long             | EC               | CORP              | US        |     18283 | NS      | $2138014.02   | 0.71%             |  |  |  | No            |                  1 | On Loan: No      |
| Broadridge Financial Solutions Inc      | Broadridge Financial Solutions Inc                                          | CUSIP: 11133T103<br>LEI: 549300KZDJZQ2YIHRC28 | Long             | EC               | CORP              | US        |     11869 | NS      | $2884523.07   | 0.95%             |  |  |  | No            |                  1 | On Loan: No      |
| Lattice Semiconductor Corp              | Lattice Semiconductor Corp                                                  | CUSIP: 518415104<br>LEI: 549300LRBBPZDQ2II567 | Long             | EC               | CORP              | US        |     90260 | NS      | $4421837.40   | 1.46%             |  |  |  | No            |                  1 | On Loan: No      |
| West Pharmaceutical Services Inc        | West Pharmaceutical Services Inc                                            | CUSIP: 955306105<br>LEI: 5493007NKRGM1RJQ1P16 | Long             | EC               | CORP              | US        |      2450 | NS      | $536060.00    | 0.18%             |  |  |  | No            |                  1 | On Loan: No      |
| T. Rowe Price Treasury Reserve Fund     | T. Rowe Price Treasury Reserve Fund                                         | CUSIP: 76105Y208<br>LEI: 5493007QR86JJLYO6D96 | Long             | STIV             | RF                | US        |         3 | NS      | $2.71         | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Liberty Media Corp-Liberty Live         | Liberty Media Corp-Liberty Live                                             | CUSIP: 531229722<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     15268 | NS      | $1239150.88   | 0.41%             |  |  |  | No            |                  1 | On Loan: No      |
| TopBuild Corp                           | TopBuild Corp                                                               | CUSIP: 89055F103<br>LEI: 5493007YSKHOL4RWII46 | Long             | EC               | CORP              | US        |      2615 | NS      | $846580.10    | 0.28%             |  |  |  | No            |                  1 | On Loan: —       |
| Fair Isaac Corp                         | Fair Isaac Corp                                                             | CUSIP: 303250104<br>LEI: RI6HET5SJUEY30V1PS26 | Long             | EC               | CORP              | US        |      1148 | NS      | $2098498.08   | 0.69%             |  |  |  | No            |                  1 | On Loan: No      |
| Hologic Inc                             | Hologic Inc                                                                 | CUSIP: 436440101<br>LEI: 549300DYP6F5ZJL0LB74 | Long             | EC               | CORP              | US        |     98927 | NS      | $6446083.32   | 2.13%             |  |  |  | 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