# EDGAR Filing Document

**Accession Number:** 0000067160
**File Stem:** 0001410368-26-019515
**Filing Date:** 2026-2
**Character Count:** 51579
**Document Hash:** f1aac74d34e074acb06639c2d8fef169
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-019515.hdr.sgml**: 20260226

**ACCESSION NUMBER**: 0001410368-26-019515

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260226

**DATE AS OF CHANGE**: 20260226

**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:** 26688089

**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:** 2025-12-31

**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:** $410466416.32

**Total Liabilities:** $31282496.31

**Net Assets:** $379183920.01

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000031719 | 0.00%                | 1.32%                | -0.40%               |
| Class ID C000067777 | 0.00%                | 1.29%                | -0.46%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $2470782.88              | $-2411516.38                               |
| Month 2  | $154713.58               | $5956328.59                                |
| Month 3  | $4501742.89              | $-6026303.08                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Agilent Technologies Inc                | Agilent Technologies Inc                                                    | CUSIP: 00846U101<br>LEI: QUIX8Y7A2WP0XRMW7G29 | Long             | EC               | CORP              | US        |     57910 | NS      | $7879813.70   | 2.08%             |  |  |  | No            |                  1 | On Loan: No      |
| Align Technology Inc                    | Align Technology Inc                                                        | CUSIP: 016255101<br>LEI: 549300N5YSE0U3LCP840 | Long             | EC               | CORP              | US        |     13062 | NS      | $2039631.30   | 0.54%             |  |  |  | No            |                  1 | On Loan: No      |
| Alnylam Pharmaceuticals Inc             | Alnylam Pharmaceuticals Inc                                                 | CUSIP: 02043Q107<br>LEI: 529900S3ZI14OWRJII50 | Long             | EC               | CORP              | US        |     12355 | NS      | $4912965.75   | 1.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Cencora Inc                             | Cencora Inc                                                                 | CUSIP: 03073E105<br>LEI: AI8GXW8LG5WK7E9UD086 | Long             | EC               | CORP              | US        |     16034 | NS      | $5415483.50   | 1.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Amphenol Corp                           | Amphenol Corp                                                               | CUSIP: 032095101<br>LEI: 549300D3L3G0R4U4VT04 | Long             | EC               | CORP              | US        |     29400 | NS      | $3973116.00   | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Arcellx Inc                             | Arcellx Inc                                                                 | CUSIP: 03940C100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     18329 | NS      | $1195050.80   | 0.32%             |  |  |  | No            |                  1 | On Loan: —       |
| Ascendis Pharma A/S                     | Ascendis Pharma A/S                                                         | CUSIP: 04351P101<br>LEI: 549300B66JN3W3J8GH73 | Long             | EC               | CORP              | DK        |     11879 | NS      | $2533077.96   | 0.67%             |  |  |  | No            |                  1 | On Loan: No      |
| Assurant Inc                            | Assurant Inc                                                                | CUSIP: 04621X108<br>LEI: H3F39CAXWQRVWURFXL38 | Long             | EC               | CORP              | US        |     26159 | NS      | $6300395.15   | 1.66%             |  |  |  | No            |                  1 | On Loan: No      |
| Atlassian Corp                          | Atlassian Corp                                                              | CUSIP: 049468101<br>LEI: 549300V7ZY5P02D2MY38 | Long             | EC               | CORP              | US        |     13578 | NS      | $2201536.92   | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Aurora Innovation Inc                   | Aurora Innovation Inc                                                       | CUSIP: 051774107<br>LEI: 984500AB2E0D9F7D9D76 | Long             | EC               | CORP              | US        |    122144 | NS      | $469032.96    | 0.12%             |  |  |  | No            |                  1 | On Loan: —       |
| Avantor Inc                             | Avantor Inc                                                                 | CUSIP: 05352A100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |    241606 | NS      | $2768804.76   | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Avery Dennison Corp                     | Avery Dennison Corp                                                         | CUSIP: 053611109<br>LEI: 549300PW7VPFCYKLIV37 | Long             | EC               | CORP              | US        |     20841 | NS      | $3790561.08   | 1.00%             |  |  |  | No            |                  1 | On Loan: No      |
| BWX Technologies Inc                    | BWX Technologies Inc                                                        | CUSIP: 05605H100<br>LEI: 549300NP85N265KWMS58 | Long             | EC               | CORP              | US        |     13643 | NS      | $2358056.12   | 0.62%             |  |  |  | No            |                  1 | On Loan: No      |
| Ball Corp                               | Ball Corp                                                                   | CUSIP: 058498106<br>LEI: 0BGI85ALH27ZJP15DY16 | Long             | EC               | CORP              | US        |     44829 | NS      | $2374592.13   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Biogen Inc                              | Biogen Inc                                                                  | CUSIP: 09062X103<br>LEI: W8J5WZB5IY3K0NDQT671 | Long             | EC               | CORP              | US        |      7480 | NS      | $1316405.20   | 0.35%             |  |  |  | No            |                  1 | On Loan: No      |
| BioNTech SE                             | BioNTech SE                                                                 | CUSIP: 09075V102<br>LEI: 894500UZJ5LG1F8J1U58 | Long             | EC               | CORP              | DE        |     15337 | NS      | $1460082.40   | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Booz Allen Hamilton Holding Corp        | Booz Allen Hamilton Holding Corp                                            | CUSIP: 099502106<br>LEI: 529900JPV47PIUWMA015 | Long             | EC               | CORP              | US        |     39934 | NS      | $3368832.24   | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Broadridge Financial Solutions Inc      | Broadridge Financial Solutions Inc                                          | CUSIP: 11133T103<br>LEI: 549300KZDJZQ2YIHRC28 | Long             | EC               | CORP              | US        |      4589 | NS      | $1024127.13   | 0.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Bruker Corp                             | Bruker Corp                                                                 | CUSIP: 116794108<br>LEI: LEBZ6VLQ6I8XB1NHVY15 | Long             | EC               | CORP              | US        |     21893 | NS      | $1031379.23   | 0.27%             |  |  |  | No            |                  1 | On Loan: —       |
| Burlington Stores Inc                   | Burlington Stores Inc                                                       | CUSIP: 122017106<br>LEI: 5299003Z37DVGKKC1W09 | Long             | EC               | CORP              | US        |     18830 | NS      | $5439045.50   | 1.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Cboe Global Markets Inc                 | Cboe Global Markets Inc                                                     | CUSIP: 12503M108<br>LEI: 529900RLNSGA90UPEH54 | Long             | EC               | CORP              | US        |     13116 | NS      | $3292116.00   | 0.87%             |  |  |  | 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        |    443430 | NS      | $3525268.50   | 0.93%             |  |  |  | No            |                  1 | On Loan: —       |
| Caris Life Sciences Inc                 | Caris Life Sciences Inc                                                     | CUSIP: 142152107<br>LEI: 549300LX5LO78M5VPY43 | Long             | EC               | CORP              | US        |     41091 | NS      | $1108635.18   | 0.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Casey's General Stores Inc              | Casey's General Stores Inc                                                  | CUSIP: 147528103<br>LEI: 549300CAFWSI86V66Q65 | Long             | EC               | CORP              | US        |      5305 | NS      | $2932126.55   | 0.77%             |  |  |  | No            |                  1 | On Loan: No      |
| Cheniere Energy Inc                     | Cheniere Energy Inc                                                         | CUSIP: 16411R208<br>LEI: MIHC87W9WTYSYZWV1J40 | Long             | EC               | CORP              | US        |     19548 | NS      | $3799935.72   | 1.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Expand Energy Corp                      | Expand Energy Corp                                                          | CUSIP: 165167735<br>LEI: X2MT1W32SPAZ9WSKLE78 | Long             | EC               | CORP              | US        |     19808 | NS      | $2186010.88   | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Cooper Cos Inc/The                      | Cooper Cos Inc/The                                                          | CUSIP: 216648501<br>LEI: QJKMVPIGLH7530PCUE20 | Long             | EC               | CORP              | US        |     64248 | NS      | $5265766.08   | 1.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Corcept Therapeutics Inc                | Corcept Therapeutics Inc                                                    | CUSIP: 218352102<br>LEI: 529900EO9LUTFMZ7FF90 | Long             | EC               | CORP              | US        |      9784 | NS      | $340483.20    | 0.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Corning Inc                             | Corning Inc                                                                 | CUSIP: 219350105<br>LEI: 549300X2937PB0CJ7I56 | Long             | EC               | CORP              | US        |      5607 | NS      | $490948.92    | 0.13%             |  |  |  | No            |                  1 | On Loan: No      |
| QuidelOrtho Corp                        | QuidelOrtho Corp                                                            | CUSIP: 219798105<br>LEI: 549300YU8CMO9HF53113 | Long             | EC               | CORP              | US        |     42682 | NS      | $1218997.92   | 0.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Corpay Inc                              | Corpay Inc                                                                  | CUSIP: 219948106<br>LEI: 549300DG6RR0NQSFLN74 | Long             | EC               | CORP              | US        |      7303 | NS      | $2197691.79   | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| CoStar Group Inc                        | CoStar Group Inc                                                            | CUSIP: 22160N109<br>LEI: 984500Q1D53D08E2E698 | Long             | EC               | CORP              | US        |     24578 | NS      | $1652624.72   | 0.44%             |  |  |  | No            |                  1 | On Loan: No      |
| Cytokinetics Inc                        | Cytokinetics Inc                                                            | CUSIP: 23282W605<br>LEI: 549300BE5DY1HW7IHA64 | Long             | EC               | CORP              | US        |     30279 | NS      | $1923927.66   | 0.51%             |  |  |  | No            |                  1 | On Loan: —       |
| DT Midstream Inc                        | DT Midstream Inc                                                            | CUSIP: 23345M107<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      3752 | NS      | $449039.36    | 0.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Dollar Tree Inc                         | Dollar Tree Inc                                                             | CUSIP: 256746108<br>LEI: 549300PMSTQITB1WHR43 | Long             | EC               | CORP              | US        |     48500 | NS      | $5965985.00   | 1.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Domino's Pizza Inc                      | Domino's Pizza Inc                                                          | CUSIP: 25754A201<br>LEI: 25490005ZWM1IF9UXU57 | Long             | EC               | CORP              | US        |     13905 | NS      | $5795882.10   | 1.53%             |  |  |  | No            |                  1 | On Loan: No      |
| DraftKings Inc                          | DraftKings Inc                                                              | CUSIP: 26142V105<br>LEI: 2549006G33IUL6IVOD83 | Long             | EC               | CORP              | US        |     81332 | NS      | $2802700.72   | 0.74%             |  |  |  | No            |                  1 | On Loan: —       |
| Duolingo Inc                            | Duolingo Inc                                                                | CUSIP: 26603R106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      5940 | NS      | $1042470.00   | 0.27%             |  |  |  | No            |                  1 | On Loan: No      |
| EQT Corp                                | EQT Corp                                                                    | CUSIP: 26884L109<br>LEI: 4NT01YGM4X7ZX86ISY52 | Long             | EC               | CORP              | US        |     67059 | NS      | $3594362.40   | 0.95%             |  |  |  | No            |                  1 | On Loan: No      |
| Elanco Animal Health Inc                | Elanco Animal Health Inc                                                    | CUSIP: 28414H103<br>LEI: 549300SHPNDCE059M934 | Long             | EC               | CORP              | US        |    120656 | NS      | $2730445.28   | 0.72%             |  |  |  | No            |                  1 | On Loan: —       |
| Encompass Health Corp                   | Encompass Health Corp                                                       | CUSIP: 29261A100<br>LEI: 549300FVRPM9DRQZRG64 | Long             | EC               | CORP              | US        |     18474 | NS      | $1960830.36   | 0.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Equifax Inc                             | Equifax Inc                                                                 | CUSIP: 294429105<br>LEI: 5493004MCF8JDC86VS77 | Long             | EC               | CORP              | US        |      7383 | NS      | $1601963.34   | 0.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Esab Corp                               | Esab Corp                                                                   | CUSIP: 29605J106<br>LEI: 549300ZNV0SWBXEIWT04 | Long             | EC               | CORP              | US        |     37688 | NS      | $4210503.36   | 1.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Ferguson Enterprises Inc                | Ferguson Enterprises Inc                                                    | CUSIP: 31488V107<br>LEI: 2138003JYQMRP3SLX189 | Long             | EC               | CORP              | US        |     19447 | NS      | $4329485.61   | 1.14%             |  |  |  | No            |                  1 | On Loan: No      |
| Fortive Corp                            | Fortive Corp                                                                | CUSIP: 34959J108<br>LEI: 549300MU9YQJYHDQEF63 | Long             | EC               | CORP              | US        |     19888 | NS      | $1098016.48   | 0.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Hilton Worldwide Holdings Inc           | Hilton Worldwide Holdings Inc                                               | CUSIP: 43300A203<br>LEI: 549300HVGPK36ICB0B89 | Long             | EC               | CORP              | US        |     31426 | NS      | $9027118.50   | 2.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Hologic Inc                             | Hologic Inc                                                                 | CUSIP: 436440101<br>LEI: 549300DYP6F5ZJL0LB74 | Long             | EC               | CORP              | US        |     42347 | NS      | $3154428.03   | 0.83%             |  |  |  | No            |                  1 | On Loan: No      |
| HubSpot Inc                             | HubSpot Inc                                                                 | CUSIP: 443573100<br>LEI: 529900BLNVEW0MVKJB37 | Long             | EC               | CORP              | US        |      3065 | NS      | $1229984.50   | 0.32%             |  |  |  | No            |                  1 | On Loan: No      |
| ITT Inc                                 | ITT Inc                                                                     | CUSIP: 45073V108<br>LEI: 549300KDSERHTJOXUS80 | Long             | EC               | CORP              | US        |     13226 | NS      | $2294843.26   | 0.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Ingersoll Rand Inc                      | Ingersoll Rand Inc                                                          | CUSIP: 45687V106<br>LEI: 5299004C02FMZCUOIR50 | Long             | EC               | CORP              | US        |     50269 | NS      | $3982310.18   | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Ionis Pharmaceuticals Inc               | Ionis Pharmaceuticals Inc                                                   | CUSIP: 462222100<br>LEI: 549300SI4ZGLG0BLUZ92 | Long             | EC               | CORP              | US        |     60342 | NS      | $4773655.62   | 1.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Keysight Technologies Inc               | Keysight Technologies Inc                                                   | CUSIP: 49338L103<br>LEI: 549300GLKVIO8YRCYN02 | Long             | EC               | CORP              | US        |     22654 | NS      | $4603066.26   | 1.21%             |  |  |  | No            |                  1 | On Loan: No      |
| Lattice Semiconductor Corp              | Lattice Semiconductor Corp                                                  | CUSIP: 518415104<br>LEI: 549300LRBBPZDQ2II567 | Long             | EC               | CORP              | US        |     99024 | NS      | $7286185.92   | 1.92%             |  |  |  | No            |                  1 | On Loan: —       |
| Liberty Live Holdings Inc               | Liberty Live Holdings Inc                                                   | CUSIP: 530909308<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     32102 | NS      | $2669602.32   | 0.70%             |  |  |  | No            |                  1 | On Loan: No      |
| Liberty Media Corp-Liberty Formula One  | Liberty Media Corp-Liberty Formula One                                      | CUSIP: 531229755<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     61157 | NS      | $6024576.07   | 1.59%             |  |  |  | No            |                  1 | On Loan: No      |
| Live Nation Entertainment Inc           | Live Nation Entertainment Inc                                               | CUSIP: 538034109<br>LEI: 5493007B9BM9ZXJINO78 | Long             | EC               | CORP              | US        |      5225 | NS      | $744562.50    | 0.20%             |  |  |  | No            |                  1 | On Loan: —       |
| MSCI Inc                                | MSCI Inc                                                                    | CUSIP: 55354G100<br>LEI: 549300HTIN2PD78UB763 | Long             | EC               | CORP              | US        |     10113 | NS      | $5802131.49   | 1.53%             |  |  |  | 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        |     24363 | NS      | $4172894.64   | 1.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Manhattan Associates Inc                | Manhattan Associates Inc                                                    | CUSIP: 562750109<br>LEI: 529900Q1GJP7KD52SW51 | Long             | EC               | CORP              | US        |     17873 | NS      | $3097569.63   | 0.82%             |  |  |  | No            |                  1 | On Loan: No      |
| Maplebear Inc                           | Maplebear Inc                                                               | CUSIP: 565394103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      5343 | NS      | $240328.14    | 0.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Markel Group Inc                        | Markel Group Inc                                                            | CUSIP: 570535104<br>LEI: 549300SCNO12JLWIK605 | Long             | EC               | CORP              | US        |      1112 | NS      | $2390410.80   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Martin Marietta Materials Inc           | Martin Marietta Materials Inc                                               | CUSIP: 573284106<br>LEI: 5299005MZ4WZECVATV08 | Long             | EC               | CORP              | US        |      6504 | NS      | $4049780.64   | 1.07%             |  |  |  | No            |                  1 | On Loan: No      |
| Masimo Corp                             | Masimo Corp                                                                 | CUSIP: 574795100<br>LEI: 549300Q4A8JK0PIYCU29 | Long             | EC               | CORP              | US        |      5984 | NS      | $778279.04    | 0.21%             |  |  |  | No            |                  1 | On Loan: No      |
| McCormick & Co Inc/MD                   | McCormick & Co Inc/MD                                                       | CUSIP: 579780206<br>LEI: 549300JQQA6MQ4OJP259 | Long             | EC               | CORP              | US        |     43178 | NS      | $2940853.58   | 0.78%             |  |  |  | No            |                  1 | On Loan: No      |
| McGraw Hill Inc                         | McGraw Hill Inc                                                             | CUSIP: 580907103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     47134 | NS      | $777711.00    | 0.21%             |  |  |  | No            |                  1 | On Loan: No      |
| Mettler-Toledo International Inc        | Mettler-Toledo International Inc                                            | CUSIP: 592688105<br>LEI: 5493000BD5GJNUDIUG10 | Long             | EC               | CORP              | US        |      4936 | NS      | $6881721.84   | 1.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Microchip Technology Inc                | Microchip Technology Inc                                                    | CUSIP: 595017104<br>LEI: 5493007PTFULNYZJ1R12 | Long             | EC               | CORP              | US        |     73029 | NS      | $4653407.88   | 1.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Molina Healthcare Inc                   | Molina Healthcare Inc                                                       | CUSIP: 60855R100<br>LEI: 549300NQQCEQ46YHZ591 | Long             | EC               | CORP              | US        |     11320 | NS      | $1964472.80   | 0.52%             |  |  |  | No            |                  1 | On Loan: No      |
| MongoDB Inc                             | MongoDB Inc                                                                 | CUSIP: 60937P106<br>LEI: 549300TPTG69WKWE1Z37 | Long             | EC               | CORP              | US        |      4123 | NS      | $1730381.87   | 0.46%             |  |  |  | No            |                  1 | On Loan: No      |
| Monolithic Power Systems Inc            | Monolithic Power Systems Inc                                                | CUSIP: 609839105<br>LEI: 529900TB7O85LSZ1XU31 | Long             | EC               | CORP              | US        |      5174 | NS      | $4689506.64   | 1.24%             |  |  |  | No            |                  1 | On Loan: No      |
| Natera Inc                              | Natera Inc                                                                  | CUSIP: 632307104<br>LEI: 529900CQ3OZ0A0VYVU59 | Long             | EC               | CORP              | US        |      4135 | NS      | $947287.15    | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Netskope Inc                            | Netskope Inc                                                                | CUSIP: 64119N608<br>LEI: 254900CS525VJG6KO570 | Long             | EC               | CORP              | US        |     22182 | NS      | $389072.28    | 0.10%             |  |  |  | No            |                  1 | On Loan: No      |
| New York Times Co/The                   | New York Times Co/The                                                       | CUSIP: 650111107<br>LEI: 529900J1WEMMIW7BOH57 | Long             | EC               | CORP              | US        |     62829 | NS      | $4361589.18   | 1.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Nuvalent Inc                            | Nuvalent Inc                                                                | CUSIP: 670703107<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      3468 | NS      | $348846.12    | 0.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Old Dominion Freight Line Inc           | Old Dominion Freight Line Inc                                               | CUSIP: 679580100<br>LEI: 5299009TWK32WE417T96 | Long             | EC               | CORP              | US        |     26479 | NS      | $4151907.20   | 1.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Onestream Inc                           | Onestream Inc                                                               | CUSIP: 68278B107<br>LEI: 254900CRBCHIYDC37W82 | Long             | EC               | CORP              | US        |     41083 | NS      | $755105.54    | 0.20%             |  |  |  | No            |                  1 | On Loan: No      |
| PTC Inc                                 | PTC Inc                                                                     | CUSIP: 69370C100<br>LEI: 54930050SSMU8SKDJ030 | Long             | EC               | CORP              | US        |     43801 | NS      | $7630572.21   | 2.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Paylocity Holding Corp                  | Paylocity Holding Corp                                                      | CUSIP: 70438V106<br>LEI: 549300VH75FTB4DIEE07 | Long             | EC               | CORP              | US        |     26409 | NS      | $4027372.50   | 1.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Planet Fitness Inc                      | Planet Fitness Inc                                                          | CUSIP: 72703H101<br>LEI: 549300LLE5HUPF6H8G33 | Long             | EC               | CORP              | US        |     49234 | NS      | $5340411.98   | 1.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Pool Corp                               | Pool Corp                                                                   | CUSIP: 73278L105<br>LEI: 5493005VZK1KMN6CO617 | Long             | EC               | CORP              | US        |     13770 | NS      | $3149887.50   | 0.83%             |  |  |  | No            |                  1 | On Loan: No      |
| Pure Storage Inc                        | Pure Storage Inc                                                            | CUSIP: 74624M102<br>LEI: 549300NPDB0BZTK3WO90 | Long             | EC               | CORP              | US        |     35817 | NS      | $2400097.17   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| Quanta Services Inc                     | Quanta Services Inc                                                         | CUSIP: 74762E102<br>LEI: SHVRXXEACT60MMH07S24 | Long             | EC               | CORP              | US        |      4800 | NS      | $2025888.00   | 0.53%             |  |  |  | No            |                  1 | On Loan: No      |
| RB Global Inc                           | RB Global Inc                                                               | CUSIP: 74935Q107<br>LEI: 5493002H8U24DJXQ4886 | Long             | EC               | CORP              | CA        |     16133 | NS      | $1659601.71   | 0.44%             |  |  |  | No            |                  1 | On Loan: —       |
| Ralliant Corp                           | Ralliant Corp                                                               | CUSIP: 750940108<br>LEI: 52990024QKO4DYT8N464 | Long             | EC               | CORP              | US        |     20457 | NS      | $1041465.87   | 0.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Raymond James Financial Inc             | Raymond James Financial Inc                                                 | CUSIP: 754730109<br>LEI: RGUZHJ05YTITL6D76949 | Long             | EC               | CORP              | US        |     24462 | NS      | $3928352.58   | 1.04%             |  |  |  | No            |                  1 | On Loan: No      |
| Reddit Inc                              | Reddit Inc                                                                  | CUSIP: 75734B100<br>LEI: 529900APN1YHPBHPI679 | Long             | EC               | CORP              | US        |     13009 | NS      | $2990378.83   | 0.79%             |  |  |  | No            |                  1 | On Loan: No      |
| T. Rowe Price Government Reserve Fund   | T. Rowe Price Government Reserve Fund                                       | CUSIP: 76105Y109<br>LEI: 5493007QR86JJLYO6D96 | Long             | STIV             | RF                | US        |        13 | NS      | $12.62        | 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        |         1 | NS      | $1.32         | 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        |         3 | NS      | $3.42         | 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        |         8 | NS      | $7.67         | 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        |        86 | NS      | $86.47        | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Revolution Medicines Inc                | Revolution Medicines Inc                                                    | CUSIP: 76155X100<br>LEI: 549300JU3X0LBCQ65892 | Long             | EC               | CORP              | US        |     12694 | NS      | $1011077.10   | 0.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Ross Stores Inc                         | Ross Stores Inc                                                             | CUSIP: 778296103<br>LEI: 549300ENZFLPGRDFZQ60 | Long             | EC               | CORP              | US        |     19902 | NS      | $3585146.28   | 0.95%             |  |  |  | No            |                  1 | On Loan: No      |
| Ryan Specialty Holdings Inc             | Ryan Specialty Holdings Inc                                                 | CUSIP: 78351F107<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     26662 | NS      | $1376559.06   | 0.36%             |  |  |  | No            |                  1 | On Loan: —       |
| Service Corp International/US           | Service Corp International/US                                               | CUSIP: 817565104<br>LEI: 549300RKVM2ME20JHZ15 | Long             | EC               | CORP              | US        |     32089 | NS      | $2501979.33   | 0.66%             |  |  |  | No            |                  1 | On Loan: No      |
| StandardAero Inc                        | StandardAero Inc                                                            | CUSIP: 85423L103<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     70497 | NS      | $2021853.96   | 0.53%             |  |  |  | No            |                  1 | On Loan: —       |
| Fixed Income Clearing Corp              | FIXED INC CLEARING CORP.REPO                                                | CUSIP: 000000000<br>LEI: 549300H47WTHXPU08X20 | Long             | RA               | CORP              | US        |  13434235 | PA      | $13434235.49  | 3.54%             |  |  |  | No            |                  2 | On Loan: No      |
| TPG Inc                                 | TPG Inc                                                                     | CUSIP: 872657101<br>LEI: 549300NLO4R8MX77XJ02 | Long             | EC               | CORP              | US        |     23980 | NS      | $1530883.20   | 0.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Teleflex Inc                            | Teleflex Inc                                                                | CUSIP: 879369106<br>LEI: UUL85LWXB4NGSWWXIQ25 | Long             | EC               | CORP              | US        |     30918 | NS      | $3773232.72   | 1.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Texas Roadhouse Inc                     | Texas Roadhouse Inc                                                         | CUSIP: 882681109<br>LEI: 5299002Y1CNRPDGXTQ75 | Long             | EC               | CORP              | US        |     15262 | NS      | $2533492.00   | 0.67%             |  |  |  | No            |                  1 | On Loan: No      |
| Textron Inc                             | Textron Inc                                                                 | CUSIP: 883203101<br>LEI: 3PPKBHUG1HD6BO7RNR87 | Long             | EC               | CORP              | US        |     51563 | NS      | $4494746.71   | 1.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Trade Desk Inc/The                      | Trade Desk Inc/The                                                          | CUSIP: 88339J105<br>LEI: 549300GXPD31VT3E0P46 | Long             | EC               | CORP              | US        |     27383 | NS      | $1039458.68   | 0.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Toast Inc                               | Toast Inc                                                                   | CUSIP: 888787108<br>LEI: 549300TN1PZNLCD4I551 | Long             | EC               | CORP              | US        |     52444 | NS      | $1862286.44   | 0.49%             |  |  |  | No            |                  1 | On Loan: No      |
| TopBuild Corp                           | TopBuild Corp                                                               | CUSIP: 89055F103<br>LEI: 5493007YSKHOL4RWII46 | Long             | EC               | CORP              | US        |      4107 | NS      | $1713399.33   | 0.45%             |  |  |  | No            |                  1 | On Loan: —       |
| Tradeweb Markets Inc                    | Tradeweb Markets Inc                                                        | CUSIP: 892672106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     21757 | NS      | $2339747.78   | 0.62%             |  |  |  | No            |                  1 | On Loan: No      |
| TransUnion                              | TransUnion                                                                  | CUSIP: 89400J107<br>LEI: 549300ZS772LUNUMRB03 | Long             | EC               | CORP              | US        |     48419 | NS      | $4151929.25   | 1.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Tyler Technologies Inc                  | Tyler Technologies Inc                                                      | CUSIP: 902252105<br>LEI: 25490040SMU4Z8LBCW70 | Long             | EC               | CORP              | US        |     13774 | NS      | $6252707.30   | 1.65%             |  |  |  | No            |                  1 | On Loan: No      |
| UL Solutions Inc                        | UL Solutions Inc                                                            | CUSIP: 903731107<br>LEI: 549300F7CUV5ESKV9P71 | Long             | EC               | CORP              | US        |     30557 | NS      | $2409725.02   | 0.64%             |  |  |  | No            |                  1 | On Loan: —       |
| Ulta Beauty Inc                         | Ulta Beauty Inc                                                             | CUSIP: 90384S303<br>LEI: 529900CIV6HN8M28YM82 | Long             | EC               | CORP              | US        |      6948 | NS      | $4203609.48   | 1.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Unity Software Inc                      | Unity Software Inc                                                          | CUSIP: 91332U101<br>LEI: 549300D1ESJMGNQNG432 | Long             | EC               | CORP              | US        |     33697 | NS      | $1488396.49   | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Vaxcyte Inc                             | Vaxcyte Inc                                                                 | CUSIP: 92243G108<br>LEI: 254900M7NMHTGASX8D95 | Long             | EC               | CORP              | US        |     29075 | NS      | $1341520.50   | 0.35%             |  |  |  | No            |                  1 | On Loan: No      |
| Veeva Systems Inc                       | Veeva Systems Inc                                                           | CUSIP: 922475108<br>LEI: 549300YZEXPDB92M2F02 | Long             | EC               | CORP              | US        |     25702 | NS      | $5737457.46   | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Veralto Corp                            | Veralto Corp                                                                | CUSIP: 92338C103<br>LEI: 635400FJE6GSOJUSNY27 | Long             | EC               | CORP              | US        |     37669 | NS      | $3758612.82   | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| West Pharmaceutical Services Inc        | West Pharmaceutical Services Inc                                            | CUSIP: 955306105<br>LEI: 5493007NKRGM1RJQ1P16 | Long             | EC               | CORP              | US        |      8222 | NS      | $2262201.08   | 0.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Wingstop Inc                            | Wingstop Inc                                                                | CUSIP: 974155103<br>LEI: 549300SSH3F8HPIM3Q47 | Long             | EC               | CORP              | US        |      6020 | NS      | $1435709.80   | 0.38%             |  |  |  | No            |                  1 | On Loan: —       |
| Wyndham Hotels & Resorts Inc            | Wyndham Hotels & Resorts Inc                                                | CUSIP: 98311A105<br>LEI: 549300FE3MQ4RVXXC673 | Long             | EC               | CORP              | US        |     25569 | NS      | $1931993.64   | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| XPO Inc                                 | XPO Inc                                                                     | CUSIP: 983793100<br>LEI: 54930096DB9LCLPN7H13 | Long             | EC               | CORP              | US        |     21102 | NS      | $2867972.82   | 0.76%             |  |  |  | No            |                  1 | On Loan: —       |
| Yum! Brands Inc                         | Yum! Brands Inc                                                             | CUSIP: 988498101<br>LEI: 549300JE8XHZZ7OHN517 | Long             | EC               | CORP              | US        |     47809 | NS      | $7232545.52   | 1.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Zscaler Inc                             | Zscaler Inc                                                                 | CUSIP: 98980G102<br>LEI: 529900MZ0RTK1BWRNF46 | Long             | EC               | CORP              | US        |     13443 | NS      | $3023599.56   | 0.80%             |  |  |  | No            |                  1 | On Loan: No      |
| Zoom Communications Inc                 | Zoom Communications Inc                                                     | CUSIP: 98980L101<br>LEI: 549300T9GCHU0ODOM055 | Long             | EC               | CORP              | US        |     33414 | NS      | $2883294.06   | 0.76%             |  |  |  | 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        |    226128 | NS      | $226127.50    | 0.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Bullish                                 | Bullish                                                                     | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | KY        |      6568 | NS      | $248730.16    | 0.07%             |  |  |  | No            |                  1 | On Loan: —       |
| TechnipFMC PLC                          | TechnipFMC PLC                                                              | CUSIP: 000000000<br>LEI: 549300D5I93QWCJTCK36 | Long             | EC               | CORP              | GB        |    123603 | NS      | $5507749.68   | 1.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Viking Holdings Ltd                     | Viking Holdings Ltd                                                         | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | BM        |     89703 | NS      | $6405691.23   | 1.69%             |  |  |  | No            |                  1 | On Loan: No      |
| Alcon AG                                | Alcon AG                                                                    | CUSIP: 000000000<br>LEI: 549300LDT5AP8S0NBM78 | Long             | EC               | CORP              | CH        |     14210 | NS      | $1119890.10   | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| CRISPR Therapeutics AG                  | CRISPR Therapeutics AG                                                      | CUSIP: 000000000<br>LEI: 506700O6IRRIQLT3W370 | Long             | EC               | CORP              | CH        |     15812 | NS      | $829181.28    | 0.22%             |  |  |  | No            |                  1 | On Loan: No      |
| On Holding AG                           | On Holding AG                                                               | CUSIP: 000000000<br>LEI: 506700FB3467B9W95526 | Long             | EC               | CORP              | CH        |     10978 | NS      | $510257.44    | 0.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Sportradar Group AG                     | Sportradar Group AG                                                         | CUSIP: 000000000<br>LEI: 549300H1P33YOAT7Z533 | Long             | EC               | CORP              | CH        |     64012 | NS      | $1521565.24   | 0.40%             |  |  |  | No            |                  1 | On Loan: —       |
| Birkenstock Holding Plc                 | Birkenstock Holding Plc                                                     | CUSIP: 000000000<br>LEI: 529900CQ8LQKQ7LIT631 | Long             | EC               | CORP              | JE        |     67609 | NS      | $2765208.10   | 0.73%             |  |  |  | No            |                  1 | On Loan: —       |
| Monday.com Ltd                          | Monday.com Ltd                                                              | CUSIP: 000000000<br>LEI: 984500MDAFVD86E3B328 | Long             | EC               | CORP              | IL        |      9840 | NS      | $1451990.40   | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| NXP Semiconductors NV                   | NXP Semiconductors NV                                                       | CUSIP: 000000000<br>LEI: 724500M9BY5293JDF951 | Long             | EC               | CORP              | NL        |     11514 | NS      | $2499228.84   | 0.66%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2026-01-22

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

**Signature:** Renee Hitchcock

**Name of Signer:** Renee Hitchcock

**Title:** CFO and Treasurer