# EDGAR Filing Document

**Accession Number:** 0000742212
**File Stem:** 0001410368-26-016289
**Filing Date:** 2026-2
**Character Count:** 48258
**Document Hash:** b2c2c160f4fe17a9e3fb37be3b6ba720
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-016289.hdr.sgml**: 20260223

**ACCESSION NUMBER**: 0001410368-26-016289

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260223

**DATE AS OF CHANGE**: 20260223

**PERIOD START**: 20251231

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NORTHWESTERN MUTUAL SERIES FUND INC
- **CENTRAL INDEX KEY:** 0000742212

**ORGANIZATION NAME:**
- **EIN:** 391603401
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-03990
- **FILM NUMBER:** 26664728

**BUSINESS ADDRESS:**
- **STREET 1:** 720 E WISCONSIN AVE
- **CITY:** MILWAUKEE
- **STATE:** WI
- **ZIP:** 53202
- **BUSINESS PHONE:** 4142992508

**MAIL ADDRESS:**
- **STREET 1:** 720 EAST WISCONSIN AVE
- **CITY:** MILWAUKEE
- **STATE:** WI
- **ZIP:** 53202

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NORTHWESTERN MUTUAL VARIABLE LIFE SERIES FUND INC
- **DATE OF NAME CHANGE:** 19940830

## Series and Classes Contracts Data

### Large Cap Core Stock Portfolio (Series ID: S000000040)

| Class ID   | Class Name                     | Ticker Symbol   |
|:---|:---|:---|
| C000000075 | Large Cap Core Stock Portfolio |  |

## Form NPORT-P: Monthly Portfolio Investments Report

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

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

- **a. Name of Registrant:** NORTHWESTERN MUTUAL SERIES FUND INC

- **b. Investment Company Act file number:** 811-03990

- **c. CIK number of Registrant:** 0000742212

- **d. LEI of Registrant:** 549300T1UBX7MDSNZA55

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

  - **Street Address 1:** 720 E WISCONSIN AVE

  - **City:** MILWAUKEE

  - **State:** WI

  - **Foreign country:** US

  - **Zip / Postal Code:** 53202

  - **Telephone number:** 414-271-1444

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

- **a. Name of Series:** Large Cap Core Stock Portfolio

- **b. EDGAR series identifier (if any):** S000000040

- **c. LEI of Series:** VR6JA5TLPSU3FJG4YL55

**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:** $825113356.13

**Total Liabilities:** $315883.78

**Net Assets:** $824797472.35

**Cash Not Reported:** $3209232.33

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000000075 | 3.10%                | 0.63%                | -0.16%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $3810888.92              | $21457929.30                               |
| Month 2  | $5967820.03              | $-1596804.58                               |
| Month 3  | $6258406.18              | $-8363129.27                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Abbott Laboratories                | Abbott Laboratories                | CUSIP: 002824100<br>LEI: HQD377W2YR662HK5JX27 | Long             | EC               | CORP              | US        |     14138 | NS      | $1771350.02   | 0.21%             |  |  |  | No            |                  1 | On Loan: No      |
| AbbVie Inc                         | AbbVie Inc                         | CUSIP: 00287Y109<br>LEI: FR5LCKFTG8054YNNRU85 | Long             | EC               | CORP              | US        |     15188 | NS      | $3470306.12   | 0.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Advanced Micro Devices Inc         | Advanced Micro Devices Inc         | CUSIP: 007903107<br>LEI: R2I72C950HOYXII45366 | Long             | EC               | CORP              | US        |     53039 | NS      | $11358832.24  | 1.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Agilent Technologies Inc           | Agilent Technologies Inc           | CUSIP: 00846U101<br>LEI: QUIX8Y7A2WP0XRMW7G29 | Long             | EC               | CORP              | US        |     11515 | NS      | $1566846.05   | 0.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Airbnb Inc                         | Airbnb Inc                         | CUSIP: 009066101<br>LEI: 549300HMUDNO0RY56D37 | Long             | EC               | CORP              | US        |     22336 | NS      | $3031441.92   | 0.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Alnylam Pharmaceuticals Inc        | Alnylam Pharmaceuticals Inc        | CUSIP: 02043Q107<br>LEI: 529900S3ZI14OWRJII50 | Long             | EC               | CORP              | US        |       684 | NS      | $271992.60    | 0.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Alphabet Inc                       | Alphabet Inc                       | CUSIP: 02079K305<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |    164036 | NS      | $51343268.00  | 6.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Amazon.com Inc                     | Amazon.com Inc                     | CUSIP: 023135106<br>LEI: ZXTILKJKG63JELOEG630 | Long             | EC               | CORP              | US        |    179815 | NS      | $41504898.30  | 5.03%             |  |  |  | No            |                  1 | On Loan: No      |
| American Electric Power Co Inc     | American Electric Power Co Inc     | CUSIP: 025537101<br>LEI: 1B4S6S7G0TW5EE83BO58 | Long             | EC               | CORP              | US        |     21032 | NS      | $2425199.92   | 0.29%             |  |  |  | No            |                  1 | On Loan: No      |
| American International Group Inc   | American International Group Inc   | CUSIP: 026874784<br>LEI: ODVCVCQG2BP6VHV36M30 | Long             | EC               | CORP              | US        |     29680 | NS      | $2539124.00   | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Cencora Inc                        | Cencora Inc                        | CUSIP: 03073E105<br>LEI: AI8GXW8LG5WK7E9UD086 | Long             | EC               | CORP              | US        |      4355 | NS      | $1470901.25   | 0.18%             |  |  |  | No            |                  1 | On Loan: No      |
| Amgen Inc                          | Amgen Inc                          | CUSIP: 031162100<br>LEI: 62QBXGPJ34PQ72Z12S66 | Long             | EC               | CORP              | US        |      4969 | NS      | $1626403.39   | 0.20%             |  |  |  | No            |                  1 | On Loan: No      |
| Amphenol Corp                      | Amphenol Corp                      | CUSIP: 032095101<br>LEI: 549300D3L3G0R4U4VT04 | Long             | EC               | CORP              | US        |     16800 | NS      | $2270352.00   | 0.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Elevance Health Inc                | Elevance Health Inc                | CUSIP: 036752103<br>LEI: 8MYN82XMYQH89CTMTH67 | Long             | EC               | CORP              | US        |      5779 | NS      | $2025828.45   | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Apple Inc                          | Apple Inc                          | CUSIP: 037833100<br>LEI: HWUPKR0MPOU8FGXBT394 | Long             | EC               | CORP              | US        |    197096 | NS      | $53582518.56  | 6.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Argenx SE                          | Argenx SE                          | CUSIP: 04016X101<br>LEI: 7245009C5FZE6G9ODQ71 | Long             | EC               | CORP              | NL        |       940 | NS      | $790493.00    | 0.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Arista Networks Inc                | Arista Networks Inc                | CUSIP: 040413205<br>LEI: 635400H1WKBLOQERUU95 | Long             | EC               | CORP              | US        |     32406 | NS      | $4246158.18   | 0.51%             |  |  |  | No            |                  1 | On Loan: No      |
| AstraZeneca PLC                    | AstraZeneca PLC                    | CUSIP: 046353108<br>LEI: PY6ZZQWO2IZFZC3IOL08 | Long             | EC               | CORP              | GB        |     31198 | NS      | $2868032.14   | 0.35%             |  |  |  | No            |                  1 | On Loan: No      |
| Atmos Energy Corp                  | Atmos Energy Corp                  | CUSIP: 049560105<br>LEI: QVLWEGTD2S8GJMO8D383 | Long             | EC               | CORP              | US        |     19828 | NS      | $3323767.64   | 0.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Autodesk Inc                       | Autodesk Inc                       | CUSIP: 052769106<br>LEI: FRKKVKAIQEF3FCSTPG55 | Long             | EC               | CORP              | US        |     17187 | NS      | $5087523.87   | 0.62%             |  |  |  | No            |                  1 | On Loan: No      |
| Berkshire Hathaway Inc             | Berkshire Hathaway Inc             | CUSIP: 084670702<br>LEI: 5493000C01ZX7D35SD85 | Long             | EC               | CORP              | US        |     32888 | NS      | $16531153.20  | 2.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Bio-Techne Corp                    | Bio-Techne Corp                    | CUSIP: 09073M104<br>LEI: 54930073RLKQ51TILZ35 | Long             | EC               | CORP              | US        |     17063 | NS      | $1003475.03   | 0.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Blackrock Inc                      | Blackrock Inc                      | CUSIP: 09290D101<br>LEI: 529900VBK42Y5HHRMD23 | Long             | EC               | CORP              | US        |      2115 | NS      | $2263769.10   | 0.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Boeing Co/The                      | Boeing Co/The                      | CUSIP: 097023105<br>LEI: RVHJWBXLJ1RFUBSY1F30 | Long             | EC               | CORP              | US        |     17051 | NS      | $3702113.12   | 0.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Boston Scientific Corp             | Boston Scientific Corp             | CUSIP: 101137107<br>LEI: Y6ZDD9FP4P8JSSJMW954 | Long             | EC               | CORP              | US        |     11321 | NS      | $1079457.35   | 0.13%             |  |  |  | No            |                  1 | On Loan: No      |
| British American Tobacco PLC       | British American Tobacco PLC       | CUSIP: 110448107<br>LEI: 213800FKA5MF17RJKT63 | Long             | EC               | CORP              | GB        |     36870 | NS      | $2087579.40   | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Broadcom Inc                       | Broadcom Inc                       | CUSIP: 11135F101<br>LEI: 549300WV6GIDOZJTV909 | Long             | EC               | CORP              | US        |     73554 | NS      | $25457039.40  | 3.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Builders FirstSource Inc           | Builders FirstSource Inc           | CUSIP: 12008R107<br>LEI: 549300W0SKP6L3H7DP63 | Long             | EC               | CORP              | US        |     10354 | NS      | $1065323.06   | 0.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Burlington Stores Inc              | Burlington Stores Inc              | CUSIP: 122017106<br>LEI: 5299003Z37DVGKKC1W09 | Long             | EC               | CORP              | US        |      7704 | NS      | $2225300.40   | 0.27%             |  |  |  | No            |                  1 | On Loan: No      |
| CH Robinson Worldwide Inc          | CH Robinson Worldwide Inc          | CUSIP: 12541W209<br>LEI: 529900WNWN5L0OVDHA79 | Long             | EC               | CORP              | US        |     31351 | NS      | $5039986.76   | 0.61%             |  |  |  | No            |                  1 | On Loan: No      |
| CVS Health Corp                    | CVS Health Corp                    | CUSIP: 126650100<br>LEI: 549300EJG376EN5NQE29 | Long             | EC               | CORP              | US        |     23031 | NS      | $1827740.16   | 0.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Cadence Design Systems Inc         | Cadence Design Systems Inc         | CUSIP: 127387108<br>LEI: GCT7RXJOGLXPV0NXZY22 | Long             | EC               | CORP              | US        |     10241 | NS      | $3201131.78   | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Cardinal Health Inc                | Cardinal Health Inc                | CUSIP: 14149Y108<br>LEI: CCU46N3GJMF4OK4N7U60 | Long             | EC               | CORP              | US        |      9536 | NS      | $1959648.00   | 0.24%             |  |  |  | No            |                  1 | On Loan: No      |
| Casey's General Stores Inc         | Casey's General Stores Inc         | CUSIP: 147528103<br>LEI: 549300CAFWSI86V66Q65 | Long             | EC               | CORP              | US        |      1495 | NS      | $826301.45    | 0.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Celanese Corp                      | Celanese Corp                      | CUSIP: 150870103<br>LEI: 549300FHJQTDPPN41627 | Long             | EC               | CORP              | US        |     23302 | NS      | $985208.56    | 0.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Clean Harbors Inc                  | Clean Harbors Inc                  | CUSIP: 184496107<br>LEI: 5493000SJVZVZJKHJF48 | Long             | EC               | CORP              | US        |     25565 | NS      | $5994481.20   | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Coca-Cola Co/The                   | Coca-Cola Co/The                   | CUSIP: 191216100<br>LEI: UWJKFUJFZ02DKWI3RY53 | Long             | EC               | CORP              | US        |     79373 | NS      | $5548966.43   | 0.67%             |  |  |  | No            |                  1 | On Loan: No      |
| Crown Holdings Inc                 | Crown Holdings Inc                 | CUSIP: 228368106<br>LEI: NYLWZIOY8PUNIT4JOE22 | Long             | EC               | CORP              | US        |      9430 | NS      | $971007.10    | 0.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Danaher Corp                       | Danaher Corp                       | CUSIP: 235851102<br>LEI: S4BKK9OTCEWQ3YHPFM11 | Long             | EC               | CORP              | US        |      7442 | NS      | $1703622.64   | 0.21%             |  |  |  | No            |                  1 | On Loan: No      |
| Deere & Co                         | Deere & Co                         | CUSIP: 244199105<br>LEI: PWFTNG3EI0Y73OXWDH08 | Long             | EC               | CORP              | US        |       462 | NS      | $215093.34    | 0.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Delta Air Lines Inc                | Delta Air Lines Inc                | CUSIP: 247361702<br>LEI: Q2CCMS6R0AS67HJMBN42 | Long             | EC               | CORP              | US        |     30368 | NS      | $2107539.20   | 0.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Walt Disney Co/The                 | Walt Disney Co/The                 | CUSIP: 254687106<br>LEI: 549300GZKULIZ0WOW665 | Long             | EC               | CORP              | US        |     55393 | NS      | $6302061.61   | 0.76%             |  |  |  | No            |                  1 | On Loan: No      |
| Dominion Energy Inc                | Dominion Energy Inc                | CUSIP: 25746U109<br>LEI: ILUL7B6Z54MRYCF6H308 | Long             | EC               | CORP              | US        |     89314 | NS      | $5232907.26   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| DoorDash Inc                       | DoorDash Inc                       | CUSIP: 25809K105<br>LEI: 549300NUQ43FGGSK5051 | Long             | EC               | CORP              | US        |     17199 | NS      | $3895229.52   | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| EQT Corp                           | EQT Corp                           | CUSIP: 26884L109<br>LEI: 4NT01YGM4X7ZX86ISY52 | Long             | EC               | CORP              | US        |     34900 | NS      | $1870640.00   | 0.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Edwards Lifesciences Corp          | Edwards Lifesciences Corp          | CUSIP: 28176E108<br>LEI: YA13X31F3V31L8TMPR58 | Long             | EC               | CORP              | US        |     22291 | NS      | $1900307.75   | 0.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Elanco Animal Health Inc           | Elanco Animal Health Inc           | CUSIP: 28414H103<br>LEI: 549300SHPNDCE059M934 | Long             | EC               | CORP              | US        |     31280 | NS      | $707866.40    | 0.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Eversource Energy                  | Eversource Energy                  | CUSIP: 30040W108<br>LEI: SJ7XXD41SQU3ZNWUJ746 | Long             | EC               | CORP              | US        |     19694 | NS      | $1325997.02   | 0.16%             |  |  |  | No            |                  1 | On Loan: No      |
| Exxon Mobil Corp                   | Exxon Mobil Corp                   | CUSIP: 30231G102<br>LEI: J3WHBG0MTS7O8ZVMDC91 | Long             | EC               | CORP              | US        |    117212 | NS      | $14105292.08  | 1.71%             |  |  |  | No            |                  1 | On Loan: No      |
| Meta Platforms Inc                 | Meta Platforms Inc                 | CUSIP: 30303M102<br>LEI: BQ4BKCS1HXDV9HN80Z93 | Long             | EC               | CORP              | US        |     16079 | NS      | $10613587.11  | 1.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Ferguson Enterprises Inc           | Ferguson Enterprises Inc           | CUSIP: 31488V107<br>LEI: 2138003JYQMRP3SLX189 | Long             | EC               | CORP              | US        |     13915 | NS      | $3097896.45   | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Figma Inc                          | Figma Inc                          | CUSIP: 316841105<br>LEI: 254900273Q0J4Z65HU28 | Long             | EC               | CORP              | US        |     14541 | NS      | $543397.17    | 0.07%             |  |  |  | No            |                  1 | On Loan: No      |
| Gilead Sciences Inc                | Gilead Sciences Inc                | CUSIP: 375558103<br>LEI: 549300WTZWR07K8MNV44 | Long             | EC               | CORP              | US        |     12741 | NS      | $1563830.34   | 0.19%             |  |  |  | No            |                  1 | On Loan: No      |
| GSK PLC                            | GSK PLC                            | CUSIP: 37733W204<br>LEI: 5493000HZTVUYLO1D793 | Long             | EC               | CORP              | GB        |     64315 | NS      | $3154007.60   | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Goldman Sachs Group Inc/The        | Goldman Sachs Group Inc/The        | CUSIP: 38141G104<br>LEI: 784F5XWPLTWKTBV3E584 | Long             | EC               | CORP              | US        |     19110 | NS      | $16797690.00  | 2.04%             |  |  |  | No            |                  1 | On Loan: No      |
| WW Grainger Inc                    | WW Grainger Inc                    | CUSIP: 384802104<br>LEI: 549300TWZSP6O1IH2V34 | Long             | EC               | CORP              | US        |      2279 | NS      | $2299624.95   | 0.28%             |  |  |  | No            |                  1 | On Loan: No      |
| HCA Healthcare Inc                 | HCA Healthcare Inc                 | CUSIP: 40412C101<br>LEI: 529900PH4ZGUH2MNEU89 | Long             | EC               | CORP              | US        |      1873 | NS      | $874428.78    | 0.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Haleon PLC                         | Haleon PLC                         | CUSIP: 405552100<br>LEI: 549300PSB3WWEODCUP19 | Long             | EC               | CORP              | GB        |    281711 | NS      | $2848098.21   | 0.35%             |  |  |  | No            |                  1 | On Loan: No      |
| Hyatt Hotels Corp                  | Hyatt Hotels Corp                  | CUSIP: 448579102<br>LEI: T27JQIMTYSH41TCD5186 | Long             | EC               | CORP              | US        |     32528 | NS      | $5214888.96   | 0.63%             |  |  |  | No            |                  1 | On Loan: No      |
| IDEX Corp                          | IDEX Corp                          | CUSIP: 45167R104<br>LEI: 549300U5Y5EL6PHYLF13 | Long             | EC               | CORP              | US        |     13560 | NS      | $2412866.40   | 0.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Incyte Corp                        | Incyte Corp                        | CUSIP: 45337C102<br>LEI: 549300Z4WN6JVZ3T4680 | Long             | EC               | CORP              | US        |       989 | NS      | $97683.53     | 0.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Ingersoll Rand Inc                 | Ingersoll Rand Inc                 | CUSIP: 45687V106<br>LEI: 5299004C02FMZCUOIR50 | Long             | EC               | CORP              | US        |     19819 | NS      | $1570061.18   | 0.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Intuit Inc                         | Intuit Inc                         | CUSIP: 461202103<br>LEI: VI90HBPH7XSFMB9E4M29 | Long             | EC               | CORP              | US        |      7467 | NS      | $4946290.14   | 0.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Intuitive Surgical Inc             | Intuitive Surgical Inc             | CUSIP: 46120E602<br>LEI: 54930052SRG011710797 | Long             | EC               | CORP              | US        |      7920 | NS      | $4485571.20   | 0.54%             |  |  |  | No            |                  1 | On Loan: No      |
| Johnson & Johnson                  | Johnson & Johnson                  | CUSIP: 478160104<br>LEI: 549300G0CFPGEF6X2043 | Long             | EC               | CORP              | US        |     15045 | NS      | $3113562.75   | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| KKR & Co Inc                       | KKR & Co Inc                       | CUSIP: 48251W104<br>LEI: 54930013V5I303TF9571 | Long             | EC               | CORP              | US        |    104198 | NS      | $13283161.04  | 1.61%             |  |  |  | No            |                  1 | On Loan: No      |
| KeyCorp                            | KeyCorp                            | CUSIP: 493267108<br>LEI: RKPI3RZGV1V1FJTH5T61 | Long             | EC               | CORP              | US        |    193980 | NS      | $4003747.20   | 0.49%             |  |  |  | No            |                  1 | On Loan: No      |
| L3Harris Technologies Inc          | L3Harris Technologies Inc          | CUSIP: 502431109<br>LEI: 549300UTE50ZMDBG8A20 | Long             | EC               | CORP              | US        |      2604 | NS      | $764456.28    | 0.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Labcorp Holdings Inc               | Labcorp Holdings Inc               | CUSIP: 504922105<br>LEI: N/A                  | Long             | EC               | CORP              | US        |      4883 | NS      | $1225047.04   | 0.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Estee Lauder Cos Inc/The           | Estee Lauder Cos Inc/The           | CUSIP: 518439104<br>LEI: 549300VFZ8XJ9NUPU221 | Long             | EC               | CORP              | US        |      4171 | NS      | $436787.12    | 0.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Eli Lilly & Co                     | Eli Lilly & Co                     | CUSIP: 532457108<br>LEI: FRDRIPF3EKNDJ2CQJL29 | Long             | EC               | CORP              | US        |     14228 | NS      | $15290547.04  | 1.85%             |  |  |  | No            |                  1 | On Loan: No      |
| Lowe's Cos Inc                     | Lowe's Cos Inc                     | CUSIP: 548661107<br>LEI: WAFCR4OKGSC504WU3E95 | Long             | EC               | CORP              | US        |     19619 | NS      | $4731318.04   | 0.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Lululemon Athletica Inc            | Lululemon Athletica Inc            | CUSIP: 550021109<br>LEI: 549300D9GZ4BMLDW5T40 | Long             | EC               | CORP              | US        |     12288 | NS      | $2553569.28   | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Marathon Petroleum Corp            | Marathon Petroleum Corp            | CUSIP: 56585A102<br>LEI: 3BNYRYQHD39K4LCKQF12 | Long             | EC               | CORP              | US        |     18348 | NS      | $2983935.24   | 0.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Marsh & McLennan Cos Inc           | Marsh & McLennan Cos Inc           | CUSIP: 571748102<br>LEI: 549300XMP3KDCKJXIU47 | Long             | EC               | CORP              | US        |     33338 | NS      | $6184865.76   | 0.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Marriott International Inc/MD      | Marriott International Inc/MD      | CUSIP: 571903202<br>LEI: 225YDZ14ZO8E1TXUSU86 | Long             | EC               | CORP              | US        |     21897 | NS      | $6793325.28   | 0.82%             |  |  |  | No            |                  1 | On Loan: No      |
| Mastercard Inc                     | Mastercard Inc                     | CUSIP: 57636Q104<br>LEI: AR5L2ODV9HN37376R084 | Long             | EC               | CORP              | US        |     38661 | NS      | $22070791.68  | 2.68%             |  |  |  | No            |                  1 | On Loan: No      |
| McCormick & Co Inc/MD              | McCormick & Co Inc/MD              | CUSIP: 579780206<br>LEI: 549300JQQA6MQ4OJP259 | Long             | EC               | CORP              | US        |     16838 | NS      | $1146836.18   | 0.14%             |  |  |  | No            |                  1 | On Loan: No      |
| Merck & Co Inc                     | Merck & Co Inc                     | CUSIP: 58933Y105<br>LEI: 4YV9Y5M8S0BRK1RP0397 | Long             | EC               | CORP              | US        |     71066 | NS      | $7480407.16   | 0.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Microsoft Corp                     | Microsoft Corp                     | CUSIP: 594918104<br>LEI: INR2EJN1ERAN0W5ZP974 | Long             | EC               | CORP              | US        |    113961 | NS      | $55113818.82  | 6.68%             |  |  |  | No            |                  1 | On Loan: No      |
| Monster Beverage Corp              | Monster Beverage Corp              | CUSIP: 61174X109<br>LEI: 52990090AP0E7HCB6F33 | Long             | EC               | CORP              | US        |     25649 | NS      | $1966508.83   | 0.24%             |  |  |  | No            |                  1 | On Loan: No      |
| NRG Energy Inc                     | NRG Energy Inc                     | CUSIP: 629377508<br>LEI: 5E2UPK5SW04M13XY7I38 | Long             | EC               | CORP              | US        |     17754 | NS      | $2827146.96   | 0.34%             |  |  |  | No            |                  1 | On Loan: No      |
| Netflix Inc                        | Netflix Inc                        | CUSIP: 64110L106<br>LEI: 549300Y7VHGU0I7CE873 | Long             | EC               | CORP              | US        |     54131 | NS      | $5075322.56   | 0.62%             |  |  |  | No            |                  1 | On Loan: No      |
| Northrop Grumman Corp              | Northrop Grumman Corp              | CUSIP: 666807102<br>LEI: RIMU48P07456QXSO0R61 | Long             | EC               | CORP              | US        |      6935 | NS      | $3954406.35   | 0.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Nucor Corp                         | Nucor Corp                         | CUSIP: 670346105<br>LEI: 549300GGJCRSI2TIEJ46 | Long             | EC               | CORP              | US        |      9619 | NS      | $1568955.09   | 0.19%             |  |  |  | No            |                  1 | On Loan: No      |
| NVIDIA Corp                        | NVIDIA Corp                        | CUSIP: 67066G104<br>LEI: 549300S4KLFTLO7GSQ80 | Long             | EC               | CORP              | US        |    388953 | NS      | $72539734.50  | 8.79%             |  |  |  | No            |                  1 | On Loan: No      |
| O'Reilly Automotive Inc            | O'Reilly Automotive Inc            | CUSIP: 67103H107<br>LEI: 549300K2RLMQL149Q332 | Long             | EC               | CORP              | US        |     50867 | NS      | $4639579.07   | 0.56%             |  |  |  | No            |                  1 | On Loan: No      |
| Oracle Corp                        | Oracle Corp                        | CUSIP: 68389X105<br>LEI: 1Z4GXXU7ZHVWFCD8TV52 | Long             | EC               | CORP              | US        |     16189 | NS      | $3155397.99   | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| PG&E Corp                          | PG&E Corp                          | CUSIP: 69331C108<br>LEI: 8YQ2GSDWYZXO2EDN3511 | Long             | EC               | CORP              | US        |    218349 | NS      | $3508868.43   | 0.43%             |  |  |  | No            |                  1 | On Loan: No      |
| PPG Industries Inc                 | PPG Industries Inc                 | CUSIP: 693506107<br>LEI: 549300BKPEP01R3V6C59 | Long             | EC               | CORP              | US        |     19206 | NS      | $1967846.76   | 0.24%             |  |  |  | No            |                  1 | On Loan: No      |
| PACCAR Inc                         | PACCAR Inc                         | CUSIP: 693718108<br>LEI: KDTEY8BWE486IKZ3CC07 | Long             | EC               | CORP              | US        |     77404 | NS      | $8476512.04   | 1.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Packaging Corp of America          | Packaging Corp of America          | CUSIP: 695156109<br>LEI: 549300XZP8MFZFY8TJ84 | Long             | EC               | CORP              | US        |      6952 | NS      | $1433710.96   | 0.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Palantir Technologies Inc          | Palantir Technologies Inc          | CUSIP: 69608A108<br>LEI: 549300UVN46B3BBDHO85 | Long             | EC               | CORP              | US        |     28874 | NS      | $5132353.50   | 0.62%             |  |  |  | No            |                  1 | On Loan: No      |
| Parker-Hannifin Corp               | Parker-Hannifin Corp               | CUSIP: 701094104<br>LEI: 5493002CONDB4N2HKI23 | Long             | EC               | CORP              | US        |      1389 | NS      | $1220875.44   | 0.15%             |  |  |  | No            |                  1 | On Loan: No      |
| PepsiCo Inc                        | PepsiCo Inc                        | CUSIP: 713448108<br>LEI: FJSUNZKFNQ5YPJ5OT455 | Long             | EC               | CORP              | US        |      9848 | NS      | $1413384.96   | 0.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Performance Food Group Co          | Performance Food Group Co          | CUSIP: 71377A103<br>LEI: 549300EUK8GR9IT1YK57 | Long             | EC               | CORP              | US        |     23376 | NS      | $2101969.92   | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Philip Morris International Inc    | Philip Morris International Inc    | CUSIP: 718172109<br>LEI: HL3H1H2BGXWVG3BSWR90 | Long             | EC               | CORP              | US        |     30841 | NS      | $4946896.40   | 0.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Pool Corp                          | Pool Corp                          | CUSIP: 73278L105<br>LEI: 5493005VZK1KMN6CO617 | Long             | EC               | CORP              | US        |     16220 | NS      | $3710325.00   | 0.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Procter & Gamble Co/The            | Procter & Gamble Co/The            | CUSIP: 742718109<br>LEI: 2572IBTT8CCZW6AU4141 | Long             | EC               | CORP              | US        |     13733 | NS      | $1968076.23   | 0.24%             |  |  |  | No            |                  1 | On Loan: No      |
| RTX Corp                           | RTX Corp                           | CUSIP: 75513E101<br>LEI: I07WOS4YJ0N7YRFE7309 | Long             | EC               | CORP              | US        |      5871 | NS      | $1076741.40   | 0.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Regeneron Pharmaceuticals Inc      | Regeneron Pharmaceuticals Inc      | CUSIP: 75886F107<br>LEI: 549300RCBFWIRX3HYQ56 | Long             | EC               | CORP              | US        |      1105 | NS      | $852916.35    | 0.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Shell PLC                          | Shell PLC                          | CUSIP: 780259305<br>LEI: 21380068P1DRHMJ8KU70 | Long             | EC               | CORP              | GB        |    101823 | NS      | $7481954.04   | 0.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Samsara Inc                        | Samsara Inc                        | CUSIP: 79589L106<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     44078 | NS      | $1562565.10   | 0.19%             |  |  |  | No            |                  1 | On Loan: No      |
| SAP SE                             | SAP SE                             | CUSIP: 803054204<br>LEI: 529900D6BF99LW9R2E68 | Long             | EC               | CORP              | DE        |      8375 | NS      | $2034371.25   | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Sempra                             | Sempra                             | CUSIP: 816851109<br>LEI: PBBKGKLRK5S5C0Y4T545 | Long             | EC               | CORP              | US        |     60531 | NS      | $5344281.99   | 0.65%             |  |  |  | No            |                  1 | On Loan: No      |
| ServiceNow Inc                     | ServiceNow Inc                     | CUSIP: 81762P102<br>LEI: 549300HJTQM36M0E1G39 | Long             | EC               | CORP              | US        |     15790 | NS      | $2418870.10   | 0.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Snowflake Inc                      | Snowflake Inc                      | CUSIP: 833445109<br>LEI: 254900CJNSY1K7T53Z16 | Long             | EC               | CORP              | US        |     16392 | NS      | $3595749.12   | 0.44%             |  |  |  | No            |                  1 | On Loan: No      |
| Starbucks Corp                     | Starbucks Corp                     | CUSIP: 855244109<br>LEI: OQSJ1DU9TAOC51A47K68 | Long             | EC               | CORP              | US        |     29404 | NS      | $2476110.84   | 0.30%             |  |  |  | No            |                  1 | On Loan: No      |
| Stryker Corp                       | Stryker Corp                       | CUSIP: 863667101<br>LEI: 5493002F0SC4JTBU5137 | Long             | EC               | CORP              | US        |      3593 | NS      | $1262831.71   | 0.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Synopsys Inc                       | Synopsys Inc                       | CUSIP: 871607107<br>LEI: QG7T915N9S0NY5UKNE63 | Long             | EC               | CORP              | US        |     12300 | NS      | $5777556.00   | 0.70%             |  |  |  | No            |                  1 | On Loan: No      |
| T-Mobile US Inc                    | T-Mobile US Inc                    | CUSIP: 872590104<br>LEI: 549300QHIJYOHPACPG31 | Long             | EC               | CORP              | US        |     39555 | NS      | $8031247.20   | 0.97%             |  |  |  | No            |                  1 | On Loan: No      |
| Targa Resources Corp               | Targa Resources Corp               | CUSIP: 87612G101<br>LEI: 5493003QENHHS261UR94 | Long             | EC               | CORP              | US        |     24147 | NS      | $4455121.50   | 0.54%             |  |  |  | No            |                  1 | On Loan: No      |
| Tesla Inc                          | Tesla Inc                          | CUSIP: 88160R101<br>LEI: 54930043XZGB27CTOV49 | Long             | EC               | CORP              | US        |     32334 | NS      | $14541246.48  | 1.76%             |  |  |  | No            |                  1 | On Loan: No      |
| Texas Instruments Inc              | Texas Instruments Inc              | CUSIP: 882508104<br>LEI: WDJNR2L6D8RWOEB8T652 | Long             | EC               | CORP              | US        |     12533 | NS      | $2174350.17   | 0.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Thermo Fisher Scientific Inc       | Thermo Fisher Scientific Inc       | CUSIP: 883556102<br>LEI: HCHV7422L5HDJZCRFL38 | Long             | EC               | CORP              | US        |      7893 | NS      | $4573598.85   | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Unilever PLC                       | Unilever PLC                       | CUSIP: 904767803<br>LEI: 549300MKFYEKVRWML317 | Long             | EC               | CORP              | GB        |     57682 | NS      | $3772402.80   | 0.46%             |  |  |  | No            |                  1 | On Loan: No      |
| US Foods Holding Corp              | US Foods Holding Corp              | CUSIP: 912008109<br>LEI: 549300UGOZSO64CFPR97 | Long             | EC               | CORP              | US        |     71800 | NS      | $5407976.00   | 0.66%             |  |  |  | No            |                  1 | On Loan: No      |
| United Therapeutics Corp           | United Therapeutics Corp           | CUSIP: 91307C102<br>LEI: 5299005C4HZL4UWROC14 | Long             | EC               | CORP              | US        |      2338 | NS      | $1139190.50   | 0.14%             |  |  |  | No            |                  1 | On Loan: No      |
| UnitedHealth Group Inc             | UnitedHealth Group Inc             | CUSIP: 91324P102<br>LEI: 549300GHBMY8T5GXDE41 | Long             | EC               | CORP              | US        |     15278 | NS      | $5043420.58   | 0.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Vertex Pharmaceuticals Inc         | Vertex Pharmaceuticals Inc         | CUSIP: 92532F100<br>LEI: 54930015RAQRRZ5ZGJ91 | Long             | EC               | CORP              | US        |      4634 | NS      | $2100870.24   | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Vertiv Holdings Co                 | Vertiv Holdings Co                 | CUSIP: 92537N108<br>LEI: 549300KTTIRAOGXCRV69 | Long             | EC               | CORP              | US        |     15690 | NS      | $2541936.90   | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Walmart Inc                        | Walmart Inc                        | CUSIP: 931142103<br>LEI: Y87794H0US1R65VBXU25 | Long             | EC               | CORP              | US        |     63074 | NS      | $7027074.34   | 0.85%             |  |  |  | No            |                  1 | On Loan: No      |
| Waste Connections Inc              | Waste Connections Inc              | CUSIP: 94106B101<br>LEI: 549300HDLRTPBQU69P29 | Long             | EC               | CORP              | CA        |     12837 | NS      | $2251096.32   | 0.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Wells Fargo & Co                   | Wells Fargo & Co                   | CUSIP: 949746101<br>LEI: PBLD0EJDB5FWOLXP3B76 | Long             | EC               | CORP              | US        |    226428 | NS      | $21103089.60  | 2.56%             |  |  |  | No            |                  1 | On Loan: No      |
| Welltower Inc                      | Welltower Inc                      | CUSIP: 95040Q104<br>LEI: 254900F33BIAR82QTA19 | Long             | EC               |  | US        |     42616 | NS      | $7909955.76   | 0.96%             |  |  |  | No            |                  1 | On Loan: No      |
| WESCO International Inc            | WESCO International Inc            | CUSIP: 95082P105<br>LEI: 529900TXOGREY3WNJ434 | Long             | EC               | CORP              | US        |      7213 | NS      | $1764588.32   | 0.21%             |  |  |  | No            |                  1 | On Loan: No      |
| Williams-Sonoma Inc                | Williams-Sonoma Inc                | CUSIP: 969904101<br>LEI: 549300IARG6YWVTZ1I92 | Long             | EC               | CORP              | US        |     14990 | NS      | $2677064.10   | 0.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Arch Capital Group Ltd             | Arch Capital Group Ltd             | CUSIP: 000000000<br>LEI: 549300AYR4P8AFKDCE43 | Long             | EC               | CORP              | BM        |     23084 | NS      | $2214217.28   | 0.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Everest Group Ltd                  | Everest Group Ltd                  | CUSIP: 000000000<br>LEI: 549300N24XF2VV0B3570 | Long             | EC               | CORP              | BM        |      5930 | NS      | $2012345.50   | 0.24%             |  |  |  | No            |                  1 | On Loan: No      |
| James Hardie Industries PLC        | James Hardie Industries PLC        | CUSIP: 000000000<br>LEI: 635400NSGXKTVOO7JU45 | Long             | EC               | CORP              | IE        |    225128 | NS      | $4671406.00   | 0.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Johnson Controls International plc | Johnson Controls International plc | CUSIP: 000000000<br>LEI: 549300XQ6S1GYKGBL205 | Long             | EC               | CORP              | IE        |     17354 | NS      | $2078141.50   | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Linde PLC                          | Linde PLC                          | CUSIP: 000000000<br>LEI: 5299003QR1WT0EF88V51 | Long             | EC               | CORP              | IE        |     11721 | NS      | $4997717.19   | 0.61%             |  |  |  | No            |                  1 | On Loan: No      |
| Medtronic PLC                      | Medtronic PLC                      | CUSIP: 000000000<br>LEI: 549300GX3ZBSQWUXY261 | Long             | EC               | CORP              | IE        |     28295 | NS      | $2718017.70   | 0.33%             |  |  |  | No            |                  1 | On Loan: No      |
| STERIS PLC                         | STERIS PLC                         | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | IE        |      6303 | NS      | $1597936.56   | 0.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Trane Technologies PLC             | Trane Technologies PLC             | CUSIP: 000000000<br>LEI: 549300BURLR9SLYY2705 | Long             | EC               | CORP              | IE        |      3461 | NS      | $1347021.20   | 0.16%             |  |  |  | No            |                  1 | On Loan: No      |
| Chubb Ltd                          | Chubb Ltd                          | CUSIP: 000000000<br>LEI: E0JAN6VLUDI1HITHT809 | Long             | EC               | CORP              | CH        |     12519 | NS      | $3907430.28   | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Magnum Ice Cream Co NV/The         | Magnum Ice Cream Co NV/The         | CUSIP: 000000000<br>LEI: 25490052LLF3XH6G9847 | Long             | EC               | CORP              | NL        |     12978 | NS      | $205701.30    | 0.02%             |  |  |  | No            |                  1 | On Loan: No      |
| NXP Semiconductors NV              | NXP Semiconductors NV              | CUSIP: 000000000<br>LEI: 724500M9BY5293JDF951 | Long             | EC               | CORP              | NL        |     14062 | NS      | $3052297.72   | 0.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Royal Caribbean Cruises Ltd        | Royal Caribbean Cruises Ltd        | CUSIP: 000000000<br>LEI: K2NEH8QNVW44JIWK7Z55 | Long             | EC               | CORP              | LR        |     11683 | NS      | $3258622.36   | 0.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Flex Ltd                           | Flex Ltd                           | CUSIP: 000000000<br>LEI: 549300EAQH74YHD07T53 | Long             | EC               | CORP              | SG        |     31359 | NS      | $1894710.78   | 0.23%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2026-01-15

**Name of Applicant:** NORTHWESTERN MUTUAL SERIES FUND INC

**Signature:** Linda Wisniewski

**Name of Signer:** Linda Wisniewski

**Title:** Controller and Chief Accounting Officer