# EDGAR Filing Document

**Accession Number:** 0000067160
**File Stem:** 0001398344-23-004828
**Filing Date:** 2023-2
**Character Count:** 35931
**Document Hash:** 24afe4512c4715da53fae67719fef980
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-23-004828.hdr.sgml**: 20230227

**ACCESSION NUMBER**: 0001398344-23-004828

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230227

**DATE AS OF CHANGE**: 20230227

**PERIOD START**: 20221231

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MML SERIES INVESTMENT FUND
- **CENTRAL INDEX KEY:** 0000067160
- **IRS NUMBER:** 042476032
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-02224
- **FILM NUMBER:** 23671608

**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 Sustainable Equity Fund (Series ID: S000011484)

| Class ID   | Class Name    | Ticker Symbol   |
|:---|:---|:---|
| C000031714 | Initial Class |  |
| C000067772 | Service Class |  |

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** MML SERIES INVESTMENT FUND

- **b. Investment Company Act file number:** 811-02224

- **c. CIK number of Registrant:** 0000067160

- **d. LEI of Registrant:** VQ1HG47DNRJG3HBJH467

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 1295 State Street

  - **City:** Springfield

  - **State:** MA

  - **Foreign country:** US

  - **Zip / Postal Code:** 01111-0001

  - **Telephone number:** 4137441000

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

- **a. Name of Series:** MML Sustainable Equity Fund

- **b. EDGAR series identifier (if any):** S000011484

- **c. LEI of Series:** 34YU5PUBJV2V3T2JOS94

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

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

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

**Item A.4. Final filing**

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

### Fund Information

**Total Assets:** $131714874.89

**Total Liabilities:** $1176789.49

**Net Assets:** $130538085.40

**Cash Not Reported:** $83.32

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000031714 | -5.89%               | 6.45%                | 8.92%                |
| Class ID C000067772 | -5.91%               | 6.41%                | 8.90%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-15665.91               | $-8285048.05                               |
| Month 2  | $406524.50               | $8022910.81                                |
| Month 3  | $-38275.13               | $10840605.96                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| ABBVIE INC                   | COMMON STOCK USD.01          | CUSIP: 00287Y109<br>LEI: FR5LCKFTG8054YNNRU85 | Long             | EC               | CORP              | US        |     10997 | NS      | $1777225.17   | 1.36%             |  |  |  | No            | 1                  | On Loan: No      |
| ACCENTURE PLC CL A           | COMMON STOCK USD.0000225     | CUSIP: G1151C101<br>LEI: 549300JY6CF6DO4YFQ03 | Long             | EC               | CORP              | IE        |      5429 | NS      | $1448674.36   | 1.11%             |  |  |  | No            | 1                  | On Loan: No      |
| ADOBE INC                    | COMMON STOCK USD.0001        | CUSIP: 00724F101<br>LEI: FU4LY2G4933NH2E1CP29 | Long             | EC               | CORP              | US        |       983 | NS      | $330808.99    | 0.25%             |  |  |  | No            | 1                  | On Loan: No      |
| ADVANCED MICRO DEVICES       | COMMON STOCK USD.01          | CUSIP: 007903107<br>LEI: R2I72C950HOYXII45366 | Long             | EC               | CORP              | US        |     13116 | NS      | $849523.32    | 0.65%             |  |  |  | No            | 1                  | On Loan: No      |
| AGILENT TECHNOLOGIES INC     | COMMON STOCK USD.01          | CUSIP: 00846U101<br>LEI: QUIX8Y7A2WP0XRMW7G29 | Long             | EC               | CORP              | US        |     10228 | NS      | $1530620.20   | 1.17%             |  |  |  | No            | 1                  | On Loan: No      |
| AIR PRODUCTS + CHEMICALS INC | COMMON STOCK USD1.0          | CUSIP: 009158106<br>LEI: 7QEON6Y1RL5XR3R1W237 | Long             | EC               | CORP              | US        |      2899 | NS      | $893645.74    | 0.68%             |  |  |  | No            | 1                  | On Loan: No      |
| AIRBNB INC CLASS A           | COMMON STOCK USD.0001        | CUSIP: 009066101<br>LEI: 549300HMUDNO0RY56D37 | Long             | EC               | CORP              | US        |      3291 | NS      | $281380.50    | 0.22%             |  |  |  | No            | 1                  | On Loan: No      |
| ALPHABET INC CL A            | COMMON STOCK USD.001         | CUSIP: 02079K305<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |     55677 | NS      | $4912381.71   | 3.76%             |  |  |  | No            | 1                  | On Loan: No      |
| AMAZON.COM INC               | COMMON STOCK USD.01          | CUSIP: 023135106<br>LEI: ZXTILKJKG63JELOEG630 | Long             | EC               | CORP              | US        |     33116 | NS      | $2781744.00   | 2.13%             |  |  |  | No            | 1                  | On Loan: No      |
| AMERICAN EXPRESS CO          | COMMON STOCK USD.2           | CUSIP: 025816109<br>LEI: R4PP93JZOLY261QX3811 | Long             | EC               | CORP              | US        |      4831 | NS      | $713780.25    | 0.55%             |  |  |  | No            | 1                  | On Loan: No      |
| AMERIPRISE FINANCIAL INC     | COMMON STOCK USD.01          | CUSIP: 03076C106<br>LEI: 6ZLKQF7QB6JAEKQS5388 | Long             | EC               | CORP              | US        |      3372 | NS      | $1049939.64   | 0.80%             |  |  |  | No            | 1                  | On Loan: No      |
| AMGEN INC                    | COMMON STOCK USD.0001        | CUSIP: 031162100<br>LEI: 62QBXGPJ34PQ72Z12S66 | Long             | EC               | CORP              | US        |      3427 | NS      | $900067.28    | 0.69%             |  |  |  | No            | 1                  | On Loan: No      |
| ANALOG DEVICES INC           | COMMON STOCK USD.167         | CUSIP: 032654105<br>LEI: GYVOE5EZ4GDAVTU4CQ61 | Long             | EC               | CORP              | US        |      9194 | NS      | $1508091.82   | 1.16%             |  |  |  | No            | 1                  | On Loan: No      |
| APPLE INC                    | COMMON STOCK USD.00001       | CUSIP: 037833100<br>LEI: HWUPKR0MPOU8FGXBT394 | Long             | EC               | CORP              | US        |     41318 | NS      | $5368447.74   | 4.11%             |  |  |  | No            | 1                  | On Loan: No      |
| APPLIED MATERIALS INC        | COMMON STOCK USD.01          | CUSIP: 038222105<br>LEI: 41BNNE1AFPNAZELZ6K07 | Long             | EC               | CORP              | US        |     14144 | NS      | $1377342.72   | 1.06%             |  |  |  | No            | 1                  | On Loan: No      |
| APTIV PLC                    | COMMON STOCK USD.01          | CUSIP: G6095L109<br>LEI: N/A                  | Long             | EC               | CORP              | JE        |     10548 | NS      | $982335.24    | 0.75%             |  |  |  | No            | 1                  | On Loan: No      |
| ASML HOLDING NV              | COMMON STOCK EUR.09          | CUSIP: ACI02GTQ9<br>LEI: 724500Y6DUVHQD6OXN27 | Long             | EC               | CORP              | NL        |      1557 | NS      | $842808.67    | 0.65%             |  |  |  | No            | 2                  | On Loan: No      |
| BALL CORP                    | COMMON STOCK                 | CUSIP: 058498106<br>LEI: 0BGI85ALH27ZJP15DY16 | Long             | EC               | CORP              | US        |     13269 | NS      | $678576.66    | 0.52%             |  |  |  | No            | 1                  | On Loan: No      |
| BANK OF AMERICA CORP         | COMMON STOCK USD.01          | CUSIP: 060505104<br>LEI: 9DJT3UXIJIZJI4WXO774 | Long             | EC               | CORP              | US        |     13370 | NS      | $442814.40    | 0.34%             |  |  |  | No            | 1                  | On Loan: No      |
| BLACKROCK INC                | COMMON STOCK USD.01          | CUSIP: 09247X101<br>LEI: 549300LRIF3NWCU26A80 | Long             | EC               | CORP              | US        |      1891 | NS      | $1340019.33   | 1.03%             |  |  |  | No            | 1                  | On Loan: No      |
| BOOKING HOLDINGS INC         | COMMON STOCK USD.008         | CUSIP: 09857L108<br>LEI: FXM8FAOHMYDIPD38UZ17 | Long             | EC               | CORP              | US        |       301 | NS      | $606599.28    | 0.46%             |  |  |  | No            | 1                  | On Loan: No      |
| BRISTOL MYERS SQUIBB CO      | COMMON STOCK USD.1           | CUSIP: 110122108<br>LEI: HLYYNH7UQUORYSJQCN42 | Long             | EC               | CORP              | US        |     26015 | NS      | $1871779.25   | 1.43%             |  |  |  | No            | 1                  | On Loan: No      |
| CADENCE DESIGN SYS INC       | COMMON STOCK USD.01          | CUSIP: 127387108<br>LEI: GCT7RXJOGLXPV0NXZY22 | Long             | EC               | CORP              | US        |      3768 | NS      | $605291.52    | 0.46%             |  |  |  | No            | 1                  | On Loan: No      |
| CDW CORP/DE                  | COMMON STOCK USD.01          | CUSIP: 12514G108<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      7240 | NS      | $1292919.20   | 0.99%             |  |  |  | No            | 1                  | On Loan: No      |
| CHIPOTLE MEXICAN GRILL INC   | COMMON STOCK USD.01          | CUSIP: 169656105<br>LEI: 5493007DZOMUBASCBX97 | Long             | EC               | CORP              | US        |       218 | NS      | $302472.82    | 0.23%             |  |  |  | No            | 1                  | On Loan: No      |
| CIGNA CORP                   | COMMON STOCK USD.01          | CUSIP: 125523100<br>LEI: 549300VIWYMSIGT1U456 | Long             | EC               | CORP              | US        |      7286 | NS      | $2414143.24   | 1.85%             |  |  |  | No            | 1                  | On Loan: No      |
| CISCO SYSTEMS INC            | COMMON STOCK USD.001         | CUSIP: 17275R102<br>LEI: 8E6NF1YAL0WT6CWXXV93 | Long             | EC               | CORP              | US        |     53884 | NS      | $2567033.76   | 1.97%             |  |  |  | No            | 1                  | On Loan: No      |
| COGNEX CORP                  | COMMON STOCK USD.002         | CUSIP: 192422103<br>LEI: 549300JQTYZCLC43S226 | Long             | EC               | CORP              | US        |      5734 | NS      | $270128.74    | 0.21%             |  |  |  | No            | 1                  | On Loan: No      |
| COLGATE PALMOLIVE CO         | COMMON STOCK USD1.0          | CUSIP: 194162103<br>LEI: YMEGZFW4SBUSS5BQXF88 | Long             | EC               | CORP              | US        |      7973 | NS      | $628192.67    | 0.48%             |  |  |  | No            | 1                  | On Loan: No      |
| CONOCOPHILLIPS               | COMMON STOCK USD.01          | CUSIP: 20825C104<br>LEI: WPTL2Z3FIYTHSP5V2253 | Long             | EC               | CORP              | US        |     28025 | NS      | $3306950.00   | 2.53%             |  |  |  | No            | 1                  | On Loan: No      |
| COSTCO WHOLESALE CORP        | COMMON STOCK USD.005         | CUSIP: 22160K105<br>LEI: 29DX7H14B9S6O3FD6V18 | Long             | EC               | CORP              | US        |      1820 | NS      | $830830.00    | 0.64%             |  |  |  | No            | 1                  | On Loan: No      |
| CUMMINS INC                  | COMMON STOCK USD2.5          | CUSIP: 231021106<br>LEI: ZUNI8PYC725B6H8JU438 | Long             | EC               | CORP              | US        |      4848 | NS      | $1174621.92   | 0.90%             |  |  |  | No            | 1                  | On Loan: No      |
| Currency Forward Contract    | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |     49595 | PA      | $349.35       | 0.00%             |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract    | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |     17814 | PA      | $110.83       | 0.00%             |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract    | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |     21662 | PA      | $-231.70      | -0.00%            |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract    | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |    804917 | PA      | $-4522.56     | -0.00%            |  |  |  | No            | N/A                | On Loan: No      |
| Currency Forward Contract    | FX Forward                   | CUSIP: N/A<br>LEI: N/A                        | N/A              | DFE              |  | US        |     31923 | PA      | $211.95       | 0.00%             |  |  |  | No            | N/A                | On Loan: No      |
| CVS HEALTH CORP              | COMMON STOCK USD.01          | CUSIP: 126650100<br>LEI: 549300EJG376EN5NQE29 | Long             | EC               | CORP              | US        |     15703 | NS      | $1463362.57   | 1.12%             |  |  |  | No            | 1                  | On Loan: No      |
| DECKERS OUTDOOR CORP         | COMMON STOCK USD.01          | CUSIP: 243537107<br>LEI: 5493008LG4W3I6K8J118 | Long             | EC               | CORP              | US        |      1613 | NS      | $643845.08    | 0.49%             |  |  |  | No            | 1                  | On Loan: No      |
| DEERE + CO                   | COMMON STOCK USD1.0          | CUSIP: 244199105<br>LEI: PWFTNG3EI0Y73OXWDH08 | Long             | EC               | CORP              | US        |      1453 | NS      | $622988.28    | 0.48%             |  |  |  | No            | 1                  | On Loan: No      |
| EATON CORP PLC               | COMMON STOCK USD.01          | CUSIP: G29183103<br>LEI: 549300VDIGTMXUNT7H71 | Long             | EC               | CORP              | IE        |      6846 | NS      | $1074479.70   | 0.82%             |  |  |  | No            | 1                  | On Loan: No      |
| ECOLAB INC                   | COMMON STOCK USD1.0          | CUSIP: 278865100<br>LEI: 82DYEISM090VG8LTLS26 | Long             | EC               | CORP              | US        |      3973 | NS      | $578309.88    | 0.44%             |  |  |  | No            | 1                  | On Loan: No      |
| EDWARDS LIFESCIENCES CORP    | COMMON STOCK USD1.0          | CUSIP: 28176E108<br>LEI: YA13X31F3V31L8TMPR58 | Long             | EC               | CORP              | US        |     13812 | NS      | $1030513.32   | 0.79%             |  |  |  | No            | 1                  | On Loan: No      |
| ELECTRONIC ARTS INC          | COMMON STOCK USD.01          | CUSIP: 285512109<br>LEI: 549300O7A67PUEYKDL45 | Long             | EC               | CORP              | US        |      4735 | NS      | $578522.30    | 0.44%             |  |  |  | No            | 1                  | On Loan: No      |
| ELI LILLY + CO               | COMMON STOCK                 | CUSIP: 532457108<br>LEI: FRDRIPF3EKNDJ2CQJL29 | Long             | EC               | CORP              | US        |      1586 | NS      | $580222.24    | 0.44%             |  |  |  | No            | 1                  | On Loan: No      |
| ESTEE LAUDER COMPANIES CL A  | COMMON STOCK USD.01          | CUSIP: 518439104<br>LEI: 549300VFZ8XJ9NUPU221 | Long             | EC               | CORP              | US        |      1496 | NS      | $371172.56    | 0.28%             |  |  |  | No            | 1                  | On Loan: No      |
| GENERAC HOLDINGS INC         | COMMON STOCK USD.01          | CUSIP: 368736104<br>LEI: 529900S2H2AHJHSFFI84 | Long             | EC               | CORP              | US        |      1732 | NS      | $174343.12    | 0.13%             |  |  |  | No            | 1                  | On Loan: No      |
| GLOBALFOUNDRIES INC          | COMMON STOCK USD.02          | CUSIP: G39387108<br>LEI: 549300BA76VK784VMX48 | Long             | EC               | CORP              | KY        |      5725 | NS      | $308520.25    | 0.24%             |  |  |  | No            | 1                  | On Loan: No      |
| HOME DEPOT INC               | COMMON STOCK USD.05          | CUSIP: 437076102<br>LEI: QEKMOTMBBKA8I816DO57 | Long             | EC               | CORP              | US        |      7644 | NS      | $2414433.84   | 1.85%             |  |  |  | No            | 1                  | On Loan: No      |
| HONEYWELL INTERNATIONAL INC  | COMMON STOCK USD1.0          | CUSIP: 438516106<br>LEI: ISRPG12PN4EIEOEMW547 | Long             | EC               | CORP              | US        |      6300 | NS      | $1350090.00   | 1.03%             |  |  |  | No            | 1                  | On Loan: No      |
| HUMANA INC                   | COMMON STOCK USD.1666666     | CUSIP: 444859102<br>LEI: 529900YLDW34GJAO4J06 | Long             | EC               | CORP              | US        |      1537 | NS      | $787236.03    | 0.60%             |  |  |  | No            | 1                  | On Loan: No      |
| INTERCONTINENTAL EXCHANGE IN | COMMON STOCK USD.01          | CUSIP: 45866F104<br>LEI: 5493000F4ZO33MV32P92 | Long             | EC               | CORP              | US        |      6983 | NS      | $716385.97    | 0.55%             |  |  |  | No            | 1                  | On Loan: No      |
| JOHNSON CONTROLS INTERNATION | COMMON STOCK USD.01          | CUSIP: G51502105<br>LEI: 549300XQ6S1GYKGBL205 | Long             | EC               | CORP              | IE        |     25410 | NS      | $1626240.00   | 1.25%             |  |  |  | No            | 1                  | On Loan: No      |
| JPMORGAN CHASE + CO          | COMMON STOCK USD1.0          | CUSIP: 46625H100<br>LEI: 8I5DZWZKVSZI1NUHU748 | Long             | EC               | CORP              | US        |     15483 | NS      | $2076270.30   | 1.59%             |  |  |  | No            | 1                  | On Loan: No      |
| KEYSIGHT TECHNOLOGIES IN     | COMMON STOCK                 | CUSIP: 49338L103<br>LEI: 549300GLKVIO8YRCYN02 | Long             | EC               | CORP              | US        |      7664 | NS      | $1311080.48   | 1.00%             |  |  |  | No            | 1                  | On Loan: No      |
| KROGER CO                    | COMMON STOCK USD1.0          | CUSIP: 501044101<br>LEI: 6CPEOKI6OYJ13Q6O7870 | Long             | EC               | CORP              | US        |     20688 | NS      | $922271.04    | 0.71%             |  |  |  | No            | 1                  | On Loan: No      |
| LIBERTY MEDIA CORP LIBERTY C | TRACKING STK USD.01          | CUSIP: 531229854<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      5203 | NS      | $311035.34    | 0.24%             |  |  |  | No            | 1                  | On Loan: No      |
| LINDE PLC                    | COMMON STOCK EUR.001         | CUSIP: G5494J103<br>LEI: 8945002PAZHZLBGKGF02 | Long             | EC               | CORP              | IE        |      5784 | NS      | $1886625.12   | 1.45%             |  |  |  | No            | 1                  | On Loan: No      |
| LOCKHEED MARTIN CORP         | COMMON STOCK USD1.0          | CUSIP: 539830109<br>LEI: DPRBOZP0K5RM2YE8UU08 | Long             | EC               | CORP              | US        |      3624 | NS      | $1763039.76   | 1.35%             |  |  |  | No            | 1                  | On Loan: No      |
| MARSH + MCLENNAN COS         | COMMON STOCK USD1.0          | CUSIP: 571748102<br>LEI: 549300XMP3KDCKJXIU47 | Long             | EC               | CORP              | US        |      6922 | NS      | $1145452.56   | 0.88%             |  |  |  | No            | 1                  | On Loan: No      |
| MASCO CORP                   | COMMON STOCK USD1.0          | CUSIP: 574599106<br>LEI: 5GCSNMQXHEYA1JO8QN11 | Long             | EC               | CORP              | US        |     13704 | NS      | $639565.68    | 0.49%             |  |  |  | No            | 1                  | On Loan: No      |
| MASTERCARD INC   A           | COMMON STOCK USD.0001        | CUSIP: 57636Q104<br>LEI: AR5L2ODV9HN37376R084 | Long             | EC               | CORP              | US        |      4762 | NS      | $1655890.26   | 1.27%             |  |  |  | No            | 1                  | On Loan: No      |
| MEDTRONIC PLC                | COMMON STOCK USD.1           | CUSIP: G5960L103<br>LEI: 549300GX3ZBSQWUXY261 | Long             | EC               | CORP              | IE        |      2426 | NS      | $188548.72    | 0.14%             |  |  |  | No            | 1                  | On Loan: No      |
| MERCK + CO. INC.             | COMMON STOCK USD.5           | CUSIP: 58933Y105<br>LEI: 4YV9Y5M8S0BRK1RP0397 | Long             | EC               | CORP              | US        |     13010 | NS      | $1443459.50   | 1.11%             |  |  |  | No            | 1                  | On Loan: No      |
| MICROSOFT CORP               | COMMON STOCK USD.00000625    | CUSIP: 594918104<br>LEI: INR2EJN1ERAN0W5ZP974 | Long             | EC               | CORP              | US        |     39827 | NS      | $9551311.14   | 7.32%             |  |  |  | No            | 1                  | On Loan: No      |
| MONDELEZ INTERNATIONAL INC A | COMMON STOCK                 | CUSIP: 609207105<br>LEI: 549300DV9GIB88LZ5P30 | Long             | EC               | CORP              | US        |     18466 | NS      | $1230758.90   | 0.94%             |  |  |  | No            | 1                  | On Loan: No      |
| MORGAN STANLEY               | COMMON STOCK USD.01          | CUSIP: 617446448<br>LEI: IGJSJL3JD5P30I6NJZ34 | Long             | EC               | CORP              | US        |     24968 | NS      | $2122779.36   | 1.63%             |  |  |  | No            | 1                  | On Loan: No      |
| NEXTERA ENERGY INC           | COMMON STOCK USD.01          | CUSIP: 65339F101<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     33926 | NS      | $2836213.60   | 2.17%             |  |  |  | No            | 1                  | On Loan: No      |
| NIKE INC  CL B               | COMMON STOCK                 | CUSIP: 654106103<br>LEI: 787RXPR0UX0O0XUXPZ81 | Long             | EC               | CORP              | US        |      7535 | NS      | $881670.35    | 0.68%             |  |  |  | No            | 1                  | On Loan: No      |
| NORFOLK SOUTHERN CORP        | COMMON STOCK USD1.0          | CUSIP: 655844108<br>LEI: 54930036C8MWP850MI84 | Long             | EC               | CORP              | US        |      3437 | NS      | $846945.54    | 0.65%             |  |  |  | No            | 1                  | On Loan: No      |
| NOVO NORDISK A/S B           | COMMON STOCK DKK.2           | CUSIP: ACI07GG13<br>LEI: 549300DAQ1CVT6CXN342 | Long             | EC               | CORP              | DK        |      7871 | NS      | $1065733.02   | 0.82%             |  |  |  | No            | 2                  | On Loan: No      |
| NVIDIA CORP                  | COMMON STOCK USD.001         | CUSIP: 67066G104<br>LEI: 549300S4KLFTLO7GSQ80 | Long             | EC               | CORP              | US        |     12338 | NS      | $1803075.32   | 1.38%             |  |  |  | No            | 1                  | On Loan: No      |
| PARKER HANNIFIN CORP         | COMMON STOCK USD.5           | CUSIP: 701094104<br>LEI: 5493002CONDB4N2HKI23 | Long             | EC               | CORP              | US        |      1686 | NS      | $490626.00    | 0.38%             |  |  |  | No            | 1                  | On Loan: No      |
| PEPSICO INC                  | COMMON STOCK USD.017         | CUSIP: 713448108<br>LEI: FJSUNZKFNQ5YPJ5OT455 | Long             | EC               | CORP              | US        |     13293 | NS      | $2401513.38   | 1.84%             |  |  |  | No            | 1                  | On Loan: No      |
| PROCTER + GAMBLE CO/THE      | COMMON STOCK                 | CUSIP: 742718109<br>LEI: 2572IBTT8CCZW6AU4141 | Long             | EC               | CORP              | US        |     11091 | NS      | $1680951.96   | 1.29%             |  |  |  | No            | 1                  | On Loan: No      |
| PROLOGIS INC                 | REIT USD.01                  | CUSIP: 74340W103<br>LEI: 529900DFH19P073LZ636 | Long             | EC               | CORP              | US        |     24094 | NS      | $2716116.62   | 2.08%             |  |  |  | No            | 1                  | On Loan: No      |
| PRUDENTIAL FINANCIAL INC     | COMMON STOCK USD.01          | CUSIP: 744320102<br>LEI: 5PRBRS5FEH7NREC8OR45 | Long             | EC               | CORP              | US        |     10172 | NS      | $1011707.12   | 0.78%             |  |  |  | No            | 1                  | On Loan: No      |
| REGIONS FINANCIAL CORP       | COMMON STOCK USD.01          | CUSIP: 7591EP100<br>LEI: CW05CS5KW59QTC0DG824 | Long             | EC               | CORP              | US        |     84021 | NS      | $1811492.76   | 1.39%             |  |  |  | No            | 1                  | On Loan: No      |
| Repurchase Agreement         | FIXED INC CLEARING CORP.REPO | CUSIP: 85748R009<br>LEI: 549300H47WTHXPU08X20 | Long             | RA               | CORP              | US        |    214419 | PA      | $214419.35    | 0.16%             |  |  |  | No            | 1                  | On Loan: No      |
| RESMED INC                   | COMMON STOCK USD.004         | CUSIP: 761152107<br>LEI: 529900T3QE5253CCXF22 | Long             | EC               | CORP              | US        |      1386 | NS      | $288468.18    | 0.22%             |  |  |  | No            | 1                  | On Loan: No      |
| S+P GLOBAL INC               | COMMON STOCK USD1.0          | CUSIP: 78409V104<br>LEI: Y6X4K52KMJMZE7I7MY94 | Long             | EC               | CORP              | US        |      2380 | NS      | $797157.20    | 0.61%             |  |  |  | No            | 1                  | On Loan: No      |
| SALESFORCE INC               | COMMON STOCK USD.001         | CUSIP: 79466L302<br>LEI: RCGZFPDMRW58VJ54VR07 | Long             | EC               | CORP              | US        |      5447 | NS      | $722217.73    | 0.55%             |  |  |  | No            | 1                  | On Loan: No      |
| SBA COMMUNICATIONS CORP      | REIT USD.01                  | CUSIP: 78410G104<br>LEI: 5299001HX8ZN8Y8QIT49 | Long             | EC               | CORP              | US        |      2676 | NS      | $750109.56    | 0.57%             |  |  |  | No            | 1                  | On Loan: No      |
| SCHLUMBERGER LTD             | COMMON STOCK USD.01          | CUSIP: 806857108<br>LEI: 213800ZUA17OK3QLGM62 | Long             | EC               | CORP              | CW        |     60291 | NS      | $3223156.86   | 2.47%             |  |  |  | No            | 1                  | On Loan: No      |
| SERVICENOW INC               | COMMON STOCK USD.001         | CUSIP: 81762P102<br>LEI: 549300HJTQM36M0E1G39 | Long             | EC               | CORP              | US        |       793 | NS      | $307898.11    | 0.24%             |  |  |  | No            | 1                  | On Loan: No      |
| SPDR S+P 500 ETF TRUST       | SPDR S+P 500 ETF TRUST       | CUSIP: 78462F103<br>LEI: N/A                  | Long             | EC               | RF                | US        |      2163 | NS      | $827196.09    | 0.63%             |  |  |  | No            | 1                  | On Loan: No      |
| SYSCO CORP                   | COMMON STOCK USD1.0          | CUSIP: 871829107<br>LEI: 5RGWIFLMGH3YS7KWI652 | Long             | EC               | CORP              | US        |     20130 | NS      | $1538938.50   | 1.18%             |  |  |  | No            | 1                  | On Loan: No      |
| TARGET CORP                  | COMMON STOCK USD.0833        | CUSIP: 87612E106<br>LEI: 8WDDFXB5T1Z6J0XC1L66 | Long             | EC               | CORP              | US        |      3581 | NS      | $533712.24    | 0.41%             |  |  |  | No            | 1                  | On Loan: No      |
| TESLA INC                    | COMMON STOCK USD.001         | CUSIP: 88160R101<br>LEI: 54930043XZGB27CTOV49 | Long             | EC               | CORP              | US        |      8091 | NS      | $996649.38    | 0.76%             |  |  |  | No            | 1                  | On Loan: No      |
| THERMO FISHER SCIENTIFIC INC | COMMON STOCK USD1.0          | CUSIP: 883556102<br>LEI: HCHV7422L5HDJZCRFL38 | Long             | EC               | CORP              | US        |      2617 | NS      | $1441155.73   | 1.10%             |  |  |  | No            | 1                  | On Loan: No      |
| TJX COMPANIES INC            | COMMON STOCK USD1.0          | CUSIP: 872540109<br>LEI: V167QI9I69W364E2DY52 | Long             | EC               | CORP              | US        |     17933 | NS      | $1427466.80   | 1.09%             |  |  |  | No            | 1                  | On Loan: No      |
| TRACTOR SUPPLY COMPANY       | COMMON STOCK USD.008         | CUSIP: 892356106<br>LEI: 549300OJ9VZHZRO6I137 | Long             | EC               | CORP              | US        |      2376 | NS      | $534528.72    | 0.41%             |  |  |  | No            | 1                  | On Loan: No      |
| TRAVELERS COS INC/THE        | COMMON STOCK NPV             | CUSIP: 89417E109<br>LEI: 549300Y650407RU8B149 | Long             | EC               | CORP              | US        |      5542 | NS      | $1039069.58   | 0.80%             |  |  |  | No            | 1                  | On Loan: No      |
| UBER TECHNOLOGIES INC        | COMMON STOCK USD.00001       | CUSIP: 90353T100<br>LEI: 549300B2FTG34FILDR98 | Long             | EC               | CORP              | US        |     10625 | NS      | $262756.25    | 0.20%             |  |  |  | No            | 1                  | On Loan: No      |
| UNION PACIFIC CORP           | COMMON STOCK USD2.5          | CUSIP: 907818108<br>LEI: 549300LMMRSZZCZ8CL11 | Long             | EC               | CORP              | US        |      2202 | NS      | $455968.14    | 0.35%             |  |  |  | No            | 1                  | On Loan: No      |
| UNITED PARCEL SERVICE CL B   | COMMON STOCK USD.01          | CUSIP: 911312106<br>LEI: D01LMJZU09ULLNCY6Z23 | Long             | EC               | CORP              | US        |      5336 | NS      | $927610.24    | 0.71%             |  |  |  | No            | 1                  | On Loan: No      |
| UNITEDHEALTH GROUP INC       | COMMON STOCK USD.01          | CUSIP: 91324P102<br>LEI: 549300GHBMY8T5GXDE41 | Long             | EC               | CORP              | US        |      5189 | NS      | $2751104.02   | 2.11%             |  |  |  | No            | 1                  | On Loan: No      |
| VERIZON COMMUNICATIONS INC   | COMMON STOCK USD.1           | CUSIP: 92343V104<br>LEI: 2S72QS2UO2OESLG6Y829 | Long             | EC               | CORP              | US        |     34689 | NS      | $1366746.60   | 1.05%             |  |  |  | No            | 1                  | On Loan: No      |
| VERTEX PHARMACEUTICALS INC   | COMMON STOCK USD.01          | CUSIP: 92532F100<br>LEI: 54930015RAQRRZ5ZGJ91 | Long             | EC               | CORP              | US        |      2456 | NS      | $709243.68    | 0.54%             |  |  |  | No            | 1                  | On Loan: No      |
| VISA INC CLASS A SHARES      | COMMON STOCK USD.0001        | CUSIP: 92826C839<br>LEI: 549300JZ4OKEHW3DPJ59 | Long             | EC               | CORP              | US        |     11728 | NS      | $2436609.28   | 1.87%             |  |  |  | No            | 1                  | On Loan: No      |
| VITAL FARMS INC              | COMMON STOCK USD.0001        | CUSIP: 92847W103<br>LEI: 549300S6NYY7ER3XOT61 | Long             | EC               | CORP              | US        |      5603 | NS      | $83596.76     | 0.06%             |  |  |  | No            | 1                  | On Loan: No      |
| WALT DISNEY CO/THE           | COMMON STOCK USD.01          | CUSIP: 254687106<br>LEI: 549300GZKULIZ0WOW665 | Long             | EC               | CORP              | US        |     10312 | NS      | $895906.56    | 0.69%             |  |  |  | No            | 1                  | On Loan: No      |
| WORKDAY INC CLASS A          | COMMON STOCK USD.001         | CUSIP: 98138H101<br>LEI: 549300J0DYC0N31V7G13 | Long             | EC               | CORP              | US        |      1671 | NS      | $279608.43    | 0.21%             |  |  |  | No            | 1                  | On Loan: No      |
| XYLEM INC                    | COMMON STOCK                 | CUSIP: 98419M100<br>LEI: 549300DF5MV96DRYLQ48 | Long             | EC               | CORP              | US        |      6480 | NS      | $716493.60    | 0.55%             |  |  |  | No            | 1                  | On Loan: No      |
| ZOETIS INC                   | COMMON STOCK USD.01          | CUSIP: 98978V103<br>LEI: 549300HD9Q1LOC9KLJ48 | Long             | EC               | CORP              | US        |      6891 | NS      | $1009876.05   | 0.77%             |  |  |  | No            | 1                  | On Loan: No      |

### Signature

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

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

**Signature:** /s/ Renee Hitchcock

**Name of Signer:** Renee Hitchcock

**Title:** Treasurer and CFO