# EDGAR Filing Document

**Accession Number:** 0000742212
**File Stem:** 0001410368-26-016314
**Filing Date:** 2026-2
**Character Count:** 42556
**Document Hash:** 3543cda8d8a16b6e2130c73b03778db6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-016314.hdr.sgml**: 20260223

**ACCESSION NUMBER**: 0001410368-26-016314

**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:** 26664755

**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

### Equity Income Portfolio (Series ID: S000000042)

| Class ID   | Class Name              | Ticker Symbol   |
|:---|:---|:---|
| C000000077 | Equity Income 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:** Equity Income Portfolio

- **b. EDGAR series identifier (if any):** S000000042

- **c. LEI of Series:** 549300X5C6L2WKRYCD90

**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:** $772217814.86

**Total Liabilities:** $411834.51

**Net Assets:** $771805980.35

**Cash Not Reported:** $6852338.17

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000000077 | -0.47%               | 2.17%                | 2.13%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $4423545.86              | $-8621779.15                               |
| Month 2  | $587516.70               | $14080709.02                               |
| Month 3  | $2759305.58              | $11678606.13                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| AGCO Corp                        | AGCO Corp                        | CUSIP: 001084102<br>LEI: LYOM0B2GCF1JWXK5ZG04 | Long             | EC               | CORP              | US        |     32518 | NS      | $3392277.76   | 0.44%             |  |  |  | No            |                  1 | On Loan: No      |
| Advanced Micro Devices Inc       | Advanced Micro Devices Inc       | CUSIP: 007903107<br>LEI: R2I72C950HOYXII45366 | Long             | EC               | CORP              | US        |     25114 | NS      | $5378414.24   | 0.70%             |  |  |  | No            |                  1 | On Loan: No      |
| Alliant Energy Corp              | Alliant Energy Corp              | CUSIP: 018802108<br>LEI: 5493009ML300G373MZ12 | Long             | EC               | CORP              | US        |     81390 | NS      | $5291163.90   | 0.69%             |  |  |  | No            |                  1 | On Loan: No      |
| Allstate Corp/The                | Allstate Corp/The                | CUSIP: 020002101<br>LEI: OBT0W1ED8G0NWVOLOJ77 | Long             | EC               | CORP              | US        |     27616 | NS      | $5748270.40   | 0.74%             |  |  |  | No            |                  1 | On Loan: No      |
| Alphabet Inc                     | Alphabet Inc                     | CUSIP: 02079K107<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |     36880 | NS      | $11572944.00  | 1.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Alphabet Inc                     | Alphabet Inc                     | CUSIP: 02079K305<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |     47742 | NS      | $14943246.00  | 1.94%             |  |  |  | No            |                  1 | On Loan: No      |
| Amazon.com Inc                   | Amazon.com Inc                   | CUSIP: 023135106<br>LEI: ZXTILKJKG63JELOEG630 | Long             | EC               | CORP              | US        |     51122 | NS      | $11799980.04  | 1.53%             |  |  |  | No            |                  1 | On Loan: No      |
| Ameren Corp                      | Ameren Corp                      | CUSIP: 023608102<br>LEI: XRZQ5S7HYJFPHJ78L959 | Long             | EC               | CORP              | US        |     76801 | NS      | $7669347.86   | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| American International Group Inc | American International Group Inc | CUSIP: 026874784<br>LEI: ODVCVCQG2BP6VHV36M30 | Long             | EC               | CORP              | US        |    118860 | NS      | $10168473.00  | 1.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Elevance Health Inc              | Elevance Health Inc              | CUSIP: 036752103<br>LEI: 8MYN82XMYQH89CTMTH67 | Long             | EC               | CORP              | US        |     33836 | NS      | $11861209.80  | 1.54%             |  |  |  | No            |                  1 | On Loan: No      |
| Apollo Global Management Inc     | Apollo Global Management Inc     | CUSIP: 03769M106<br>LEI: 254900LMFT1CY9IYB476 | Long             | EC               | CORP              | US        |     13652 | NS      | $1976263.52   | 0.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Applied Materials Inc            | Applied Materials Inc            | CUSIP: 038222105<br>LEI: 41BNNE1AFPNAZELZ6K07 | Long             | EC               | CORP              | US        |     27940 | NS      | $7180300.60   | 0.93%             |  |  |  | No            |                  1 | On Loan: No      |
| AstraZeneca PLC                  | AstraZeneca PLC                  | CUSIP: 046353108<br>LEI: PY6ZZQWO2IZFZC3IOL08 | Long             | EC               | CORP              | GB        |     62921 | NS      | $5784327.53   | 0.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Avery Dennison Corp              | Avery Dennison Corp              | CUSIP: 053611109<br>LEI: 549300PW7VPFCYKLIV37 | Long             | EC               | CORP              | US        |      9768 | NS      | $1776603.84   | 0.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Bank of America Corp             | Bank of America Corp             | CUSIP: 060505104<br>LEI: 9DJT3UXIJIZJI4WXO774 | Long             | EC               | CORP              | US        |    238492 | NS      | $13117060.00  | 1.70%             |  |  |  | No            |                  1 | On Loan: No      |
| Becton Dickinson & Co            | Becton Dickinson & Co            | CUSIP: 075887109<br>LEI: ICE2EP6D98PQUILVRZ91 | Long             | EC               | CORP              | US        |     58973 | NS      | $11444890.11  | 1.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Biogen Inc                       | Biogen Inc                       | CUSIP: 09062X103<br>LEI: W8J5WZB5IY3K0NDQT671 | Long             | EC               | CORP              | US        |     13644 | NS      | $2401207.56   | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Boeing Co/The                    | Boeing Co/The                    | CUSIP: 097023105<br>LEI: RVHJWBXLJ1RFUBSY1F30 | Long             | EC               | CORP              | US        |     46785 | NS      | $10157959.20  | 1.32%             |  |  |  | No            |                  1 | On Loan: No      |
| BOEING CO/THE                    | Boeing Co/The                    | CUSIP: 097023204<br>LEI: RVHJWBXLJ1RFUBSY1F30 | Long             | EP               | CORP              | US        |     49355 | NS      | $3408456.30   | 0.44%             |  |  |  | No            |                  1 | On Loan: No      |
| Bristol-Myers Squibb Co          | Bristol-Myers Squibb Co          | CUSIP: 110122108<br>LEI: HLYYNH7UQUORYSJQCN42 | Long             | EC               | CORP              | US        |     68008 | NS      | $3668351.52   | 0.48%             |  |  |  | No            |                  1 | On Loan: No      |
| CF Industries Holdings Inc       | CF Industries Holdings Inc       | CUSIP: 125269100<br>LEI: 529900CG8YAQFZ2JMV97 | Long             | EC               | CORP              | US        |     97893 | NS      | $7571044.62   | 0.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Cigna Group/The                  | Cigna Group/The                  | CUSIP: 125523100<br>LEI: 549300VIWYMSIGT1U456 | Long             | EC               | CORP              | US        |     24427 | NS      | $6723043.21   | 0.87%             |  |  |  | No            |                  1 | On Loan: No      |
| CSX Corp                         | CSX Corp                         | CUSIP: 126408103<br>LEI: 549300JVQR4N1MMP3Q88 | Long             | EC               | CORP              | US        |    220258 | NS      | $7984352.50   | 1.03%             |  |  |  | No            |                  1 | On Loan: No      |
| CVS Health Corp                  | CVS Health Corp                  | CUSIP: 126650100<br>LEI: 549300EJG376EN5NQE29 | Long             | EC               | CORP              | US        |    128014 | NS      | $10159191.04  | 1.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Capital One Financial Corp       | Capital One Financial Corp       | CUSIP: 14040H105<br>LEI: ZUE8T73ROZOF6FLBAR73 | Long             | EC               | CORP              | US        |      5287 | NS      | $1281357.32   | 0.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Cardinal Health Inc              | Cardinal Health Inc              | CUSIP: 14149Y108<br>LEI: CCU46N3GJMF4OK4N7U60 | Long             | EC               | CORP              | US        |      3245 | NS      | $666847.50    | 0.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Expand Energy Corp               | Expand Energy Corp               | CUSIP: 165167735<br>LEI: X2MT1W32SPAZ9WSKLE78 | Long             | EC               | CORP              | US        |     50421 | NS      | $5564461.56   | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| Chevron Corp                     | Chevron Corp                     | CUSIP: 166764100<br>LEI: N/A                  | Long             | EC               | CORP              | US        |     38393 | NS      | $5851477.13   | 0.76%             |  |  |  | No            |                  1 | On Loan: No      |
| Citigroup Inc                    | Citigroup Inc                    | CUSIP: 172967424<br>LEI: 6SHGI4ZSSLCXXQSBB395 | Long             | EC               | CORP              | US        |    137285 | NS      | $16019786.65  | 2.08%             |  |  |  | No            |                  1 | On Loan: No      |
| Colgate-Palmolive Co             | Colgate-Palmolive Co             | CUSIP: 194162103<br>LEI: YMEGZFW4SBUSS5BQXF88 | Long             | EC               | CORP              | US        |    128959 | NS      | $10190340.18  | 1.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Comcast Corp                     | Comcast Corp                     | CUSIP: 20030N101<br>LEI: 51M0QTTNCGUN7KFCFZ59 | Long             | EC               | CORP              | US        |    121339 | NS      | $3626822.71   | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Conagra Brands Inc               | Conagra Brands Inc               | CUSIP: 205887102<br>LEI: 54930035UDEIH090K650 | Long             | EC               | CORP              | US        |     89323 | NS      | $1546181.13   | 0.20%             |  |  |  | No            |                  1 | On Loan: No      |
| ConocoPhillips                   | ConocoPhillips                   | CUSIP: 20825C104<br>LEI: WPTL2Z3FIYTHSP5V2253 | Long             | EC               | CORP              | US        |    109367 | NS      | $10237844.87  | 1.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Corebridge Financial Inc         | Corebridge Financial Inc         | CUSIP: 21871X109<br>LEI: 549300XY1661QCIA7J65 | Long             | EC               | CORP              | US        |     71114 | NS      | $2145509.38   | 0.28%             |  |  |  | No            |                  1 | On Loan: No      |
| CubeSmart                        | CubeSmart                        | CUSIP: 229663109<br>LEI: N/A                  | Long             | EC               |  | US        |     12775 | NS      | $460538.75    | 0.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Cummins Inc                      | Cummins Inc                      | CUSIP: 231021106<br>LEI: ZUNI8PYC725B6H8JU438 | Long             | EC               | CORP              | US        |      4057 | NS      | $2070895.65   | 0.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Walt Disney Co/The               | Walt Disney Co/The               | CUSIP: 254687106<br>LEI: 549300GZKULIZ0WOW665 | Long             | EC               | CORP              | US        |     67609 | NS      | $7691875.93   | 1.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Dominion Energy Inc              | Dominion Energy Inc              | CUSIP: 25746U109<br>LEI: ILUL7B6Z54MRYCF6H308 | Long             | EC               | CORP              | US        |     14694 | NS      | $860921.46    | 0.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Dover Corp                       | Dover Corp                       | CUSIP: 260003108<br>LEI: 549300FMC2ALGA7N9E80 | Long             | EC               | CORP              | US        |     12243 | NS      | $2390323.32   | 0.31%             |  |  |  | No            |                  1 | On Loan: No      |
| EOG Resources Inc                | EOG Resources Inc                | CUSIP: 26875P101<br>LEI: XWTZDRYZPBUHIQBKDB46 | Long             | EC               | CORP              | US        |     32712 | NS      | $3435087.12   | 0.45%             |  |  |  | No            |                  1 | On Loan: No      |
| EQT Corp                         | EQT Corp                         | CUSIP: 26884L109<br>LEI: 4NT01YGM4X7ZX86ISY52 | Long             | EC               | CORP              | US        |     42206 | NS      | $2262241.60   | 0.29%             |  |  |  | No            |                  1 | On Loan: No      |
| Equitable Holdings Inc           | Equitable Holdings Inc           | CUSIP: 29452E101<br>LEI: 549300FIBAKMNHPZ4009 | Long             | EC               | CORP              | US        |    204557 | NS      | $9747141.05   | 1.26%             |  |  |  | No            |                  1 | On Loan: No      |
| Equity Residential               | Equity Residential               | CUSIP: 29476L107<br>LEI: 5493008RACSH5EP3PI59 | Long             | EC               |  | US        |    156582 | NS      | $9870929.28   | 1.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Exxon Mobil Corp                 | Exxon Mobil Corp                 | CUSIP: 30231G102<br>LEI: J3WHBG0MTS7O8ZVMDC91 | Long             | EC               | CORP              | US        |     76980 | NS      | $9263773.20   | 1.20%             |  |  |  | No            |                  1 | On Loan: No      |
| Meta Platforms Inc               | Meta Platforms Inc               | CUSIP: 30303M102<br>LEI: BQ4BKCS1HXDV9HN80Z93 | Long             | EC               | CORP              | US        |      6450 | NS      | $4257580.50   | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Fifth Third Bancorp              | Fifth Third Bancorp              | CUSIP: 316773100<br>LEI: THRNG6BD57P9QWTQLG42 | Long             | EC               | CORP              | US        |    182547 | NS      | $8545025.07   | 1.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Fiserv Inc                       | Fiserv Inc                       | CUSIP: 337738108<br>LEI: GI7UBEJLXYLGR2C7GV83 | Long             | EC               | CORP              | US        |     36641 | NS      | $2461175.97   | 0.32%             |  |  |  | No            |                  1 | On Loan: No      |
| Fortive Corp                     | Fortive Corp                     | CUSIP: 34959J108<br>LEI: 549300MU9YQJYHDQEF63 | Long             | EC               | CORP              | US        |    117376 | NS      | $6480328.96   | 0.84%             |  |  |  | No            |                  1 | On Loan: No      |
| General Electric Co              | General Electric Co              | CUSIP: 369604301<br>LEI: 3C7474T6CDKPR9K6YT90 | Long             | EC               | CORP              | US        |     30026 | NS      | $9248908.78   | 1.20%             |  |  |  | No            |                  1 | On Loan: No      |
| Global Payments Inc              | Global Payments Inc              | CUSIP: 37940X102<br>LEI: 549300NOMHGVQBX6S778 | Long             | EC               | CORP              | US        |      9096 | NS      | $704030.40    | 0.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Hartford Insurance Group Inc/The | Hartford Insurance Group Inc/The | CUSIP: 416515104<br>LEI: IU7C3FTM7Y3BQM112U94 | Long             | EC               | CORP              | US        |     30534 | NS      | $4207585.20   | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Home Depot Inc/The               | Home Depot Inc/The               | CUSIP: 437076102<br>LEI: QEKMOTMBBKA8I816DO57 | Long             | EC               | CORP              | US        |     20001 | NS      | $6882344.10   | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Humana Inc                       | Humana Inc                       | CUSIP: 444859102<br>LEI: 529900YLDW34GJAO4J06 | Long             | EC               | CORP              | US        |      3900 | NS      | $998907.00    | 0.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Huntington Bancshares Inc/OH     | Huntington Bancshares Inc/OH     | CUSIP: 446150104<br>LEI: 549300XTVCVV9I7B5T19 | Long             | EC               | CORP              | US        |    464998 | NS      | $8067715.30   | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Intel Corp                       | Intel Corp                       | CUSIP: 458140100<br>LEI: KNX4USFCNGPY45LOCE31 | Long             | EC               | CORP              | US        |    116518 | NS      | $4299514.20   | 0.56%             |  |  |  | No            |                  1 | On Loan: No      |
| International Paper Co           | International Paper Co           | CUSIP: 460146103<br>LEI: 824LMFJDH41EY779Q875 | Long             | EC               | CORP              | US        |    236157 | NS      | $9302224.23   | 1.21%             |  |  |  | No            |                  1 | On Loan: No      |
| JPMorgan Chase & Co              | JPMorgan Chase & Co              | CUSIP: 46625H100<br>LEI: 8I5DZWZKVSZI1NUHU748 | Long             | EC               | CORP              | US        |     46154 | NS      | $14871741.88  | 1.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Johnson & Johnson                | Johnson & Johnson                | CUSIP: 478160104<br>LEI: 549300G0CFPGEF6X2043 | Long             | EC               | CORP              | US        |     17545 | NS      | $3630937.75   | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Kenvue Inc                       | Kenvue Inc                       | CUSIP: 49177J102<br>LEI: 5493008HSF8L4M2LIJ82 | Long             | EC               | CORP              | US        |    325179 | NS      | $5609337.75   | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Keurig Dr Pepper Inc             | Keurig Dr Pepper Inc             | CUSIP: 49271V100<br>LEI: DYTQ8KRTKO7Y2BVU5K74 | Long             | EC               | CORP              | US        |     18200 | NS      | $509782.00    | 0.07%             |  |  |  | No            |                  1 | On Loan: No      |
| Kimberly-Clark Corp              | Kimberly-Clark Corp              | CUSIP: 494368103<br>LEI: MP3J6QPYPGN75NVW2S34 | Long             | EC               | CORP              | US        |     57656 | NS      | $5816913.84   | 0.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Kinder Morgan Inc                | Kinder Morgan Inc                | CUSIP: 49456B101<br>LEI: 549300WR7IX8XE0TBO16 | Long             | EC               | CORP              | US        |     19600 | NS      | $538804.00    | 0.07%             |  |  |  | No            |                  1 | On Loan: No      |
| L3Harris Technologies Inc        | L3Harris Technologies Inc        | CUSIP: 502431109<br>LEI: 549300UTE50ZMDBG8A20 | Long             | EC               | CORP              | US        |     40870 | NS      | $11998205.90  | 1.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Las Vegas Sands Corp             | Las Vegas Sands Corp             | CUSIP: 517834107<br>LEI: 549300DUOO1KXOHPM605 | Long             | EC               | CORP              | US        |    151949 | NS      | $9890360.41   | 1.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Loews Corp                       | Loews Corp                       | CUSIP: 540424108<br>LEI: R8V1FN4M5ITGZOG7BS19 | Long             | EC               | CORP              | US        |     89870 | NS      | $9464209.70   | 1.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Volkswagen AG                    | Volkswagen AG                    | CUSIP: 000000000<br>LEI: 529900NNUPAGGOMPXZ31 | Long             | EC               | CORP              | DE        |      5132 | NS      | $624172.15    | 0.08%             |  |  |  | No            |                  2 | On Loan: No      |
| Sanofi SA                        | Sanofi SA                        | CUSIP: 000000000<br>LEI: 549300E9PC51EN656011 | Long             | EC               | CORP              | FR        |     32100 | NS      | $3114269.10   | 0.40%             |  |  |  | No            |                  2 | On Loan: No      |
| Siemens AG                       | Siemens AG                       | CUSIP: 000000000<br>LEI: W38RGI023J3WT1HWRP32 | Long             | EC               | CORP              | DE        |     36206 | NS      | $10167949.73  | 1.32%             |  |  |  | No            |                  2 | On Loan: No      |
| Mattel Inc                       | Mattel Inc                       | CUSIP: 577081102<br>LEI: 549300VELLG24KHTJ564 | Long             | EC               | CORP              | US        |    155592 | NS      | $3086945.28   | 0.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Merck & Co Inc                   | Merck & Co Inc                   | CUSIP: 58933Y105<br>LEI: 4YV9Y5M8S0BRK1RP0397 | Long             | EC               | CORP              | US        |     68073 | NS      | $7165363.98   | 0.93%             |  |  |  | No            |                  1 | On Loan: No      |
| MetLife Inc                      | MetLife Inc                      | CUSIP: 59156R108<br>LEI: C4BXATY60WC6XEOZDX54 | Long             | EC               | CORP              | US        |    200780 | NS      | $15849573.20  | 2.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Microsoft Corp                   | Microsoft Corp                   | CUSIP: 594918104<br>LEI: INR2EJN1ERAN0W5ZP974 | Long             | EC               | CORP              | US        |     16461 | NS      | $7960868.82   | 1.03%             |  |  |  | No            |                  1 | On Loan: No      |
| Middleby Corp/The                | Middleby Corp/The                | CUSIP: 596278101<br>LEI: JDFO86U9VQRBKW5KYA35 | Long             | EC               | CORP              | US        |     14694 | NS      | $2184556.98   | 0.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Morgan Stanley                   | Morgan Stanley                   | CUSIP: 617446448<br>LEI: IGJSJL3JD5P30I6NJZ34 | Long             | EC               | CORP              | US        |      8311 | NS      | $1475451.83   | 0.19%             |  |  |  | No            |                  1 | On Loan: No      |
| News Corp                        | News Corp                        | CUSIP: 65249B109<br>LEI: 549300ITS31QK8VRBQ14 | Long             | EC               | CORP              | US        |    235567 | NS      | $6153010.04   | 0.80%             |  |  |  | No            |                  1 | On Loan: No      |
| NextEra Energy Inc               | NextEra Energy Inc               | CUSIP: 65339F101<br>LEI: 254900RHL9MEUS5NKX63 | Long             | EC               | CORP              | US        |     78986 | NS      | $6340996.08   | 0.82%             |  |  |  | No            |                  1 | On Loan: No      |
| Norfolk Southern Corp            | Norfolk Southern Corp            | CUSIP: 655844108<br>LEI: 54930036C8MWP850MI84 | Long             | EC               | CORP              | US        |      5171 | NS      | $1492971.12   | 0.19%             |  |  |  | No            |                  1 | On Loan: No      |
| Novo Nordisk A/S                 | Novo Nordisk A/S                 | CUSIP: 670100205<br>LEI: 549300DAQ1CVT6CXN342 | Long             | EC               | CORP              | DK        |      6300 | NS      | $320544.00    | 0.04%             |  |  |  | No            |                  1 | On Loan: No      |
| Samsung Electronics Co Ltd       | Samsung Electronics Co Ltd       | CUSIP: 000000000<br>LEI: 9884007ER46L6N7EI764 | Long             | EC               | CORP              | KR        |    141949 | NS      | $11830639.43  | 1.53%             |  |  |  | No            |                  2 | On Loan: No      |
| Philip Morris International Inc  | Philip Morris International Inc  | CUSIP: 718172109<br>LEI: HL3H1H2BGXWVG3BSWR90 | Long             | EC               | CORP              | US        |     58660 | NS      | $9409064.00   | 1.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Phillips 66                      | Phillips 66                      | CUSIP: 718546104<br>LEI: 5493005JBO5YSIGK1814 | Long             | EC               | CORP              | US        |     10741 | NS      | $1386018.64   | 0.18%             |  |  |  | No            |                  1 | On Loan: No      |
| PotlatchDeltic Corp              | PotlatchDeltic Corp              | CUSIP: 737630103<br>LEI: 54930084YA8UJOTXDM59 | Long             | EC               |  | US        |     33301 | NS      | $1324713.78   | 0.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Procter & Gamble Co/The          | Procter & Gamble Co/The          | CUSIP: 742718109<br>LEI: 2572IBTT8CCZW6AU4141 | Long             | EC               | CORP              | US        |     63189 | NS      | $9055615.59   | 1.17%             |  |  |  | No            |                  1 | On Loan: No      |
| QUALCOMM Inc                     | QUALCOMM Inc                     | CUSIP: 747525103<br>LEI: H1J8DDZKZP6H7RWC0H53 | Long             | EC               | CORP              | US        |     94416 | NS      | $16149856.80  | 2.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Ralliant Corp                    | Ralliant Corp                    | CUSIP: 750940108<br>LEI: 52990024QKO4DYT8N464 | Long             | EC               | CORP              | US        |     59626 | NS      | $3035559.66   | 0.39%             |  |  |  | No            |                  1 | On Loan: No      |
| Rayonier Inc                     | Rayonier Inc                     | CUSIP: 754907103<br>LEI: HGV8VDVNL0W6SF2U9C50 | Long             | EC               |  | US        |    164324 | NS      | $3557614.60   | 0.46%             |  |  |  | No            |                  1 | On Loan: No      |
| Rexford Industrial Realty Inc    | Rexford Industrial Realty Inc    | CUSIP: 76169C100<br>LEI: 549300MSLO0DF0EMX355 | Long             | EC               |  | US        |    120520 | NS      | $4666534.40   | 0.60%             |  |  |  | No            |                  1 | On Loan: No      |
| Rockwell Automation Inc          | Rockwell Automation Inc          | CUSIP: 773903109<br>LEI: VH3R4HHBHH12O0EXZJ88 | Long             | EC               | CORP              | US        |     14331 | NS      | $5575762.17   | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| Salesforce Inc                   | Salesforce Inc                   | CUSIP: 79466L302<br>LEI: RCGZFPDMRW58VJ54VR07 | Long             | EC               | CORP              | US        |     35005 | NS      | $9273174.55   | 1.20%             |  |  |  | No            |                  1 | On Loan: No      |
| Sanofi SA                        | Sanofi SA                        | CUSIP: 80105N105<br>LEI: 549300E9PC51EN656011 | Long             | EC               | CORP              | FR        |     33121 | NS      | $1605043.66   | 0.21%             |  |  |  | No            |                  1 | On Loan: No      |
| SLB Ltd                          | SLB Ltd                          | CUSIP: 806857108<br>LEI: 213800ZUA17OK3QLGM62 | Long             | EC               | CORP              | CW        |    109816 | NS      | $4214738.08   | 0.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Charles Schwab Corp/The          | Charles Schwab Corp/The          | CUSIP: 808513105<br>LEI: 549300VSGCJ7E698NM85 | Long             | EC               | CORP              | US        |    148067 | NS      | $14793373.97  | 1.92%             |  |  |  | No            |                  1 | On Loan: No      |
| Sempra                           | Sempra                           | CUSIP: 816851109<br>LEI: PBBKGKLRK5S5C0Y4T545 | Long             | EC               | CORP              | US        |     77224 | NS      | $6818106.96   | 0.88%             |  |  |  | No            |                  1 | On Loan: No      |
| South Bow Corp                   | South Bow Corp                   | CUSIP: 83671M105<br>LEI: 2549000XS5TAFA3YF943 | Long             | EC               | CORP              | CA        |     92100 | NS      | $2533077.12   | 0.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Southern Co/The                  | Southern Co/The                  | CUSIP: 842587107<br>LEI: 549300FC3G3YU2FBZD92 | Long             | EC               | CORP              | US        |    171846 | NS      | $14984971.20  | 1.94%             |  |  |  | No            |                  1 | On Loan: No      |
| SOUTHERN CO                      | Southern Co/The                  | CUSIP: 842587842<br>LEI: 549300FC3G3YU2FBZD92 | Long             | EP               | CORP              | US        |     38728 | NS      | $1950342.08   | 0.25%             |  |  |  | No            |                  1 | On Loan: No      |
| Southwest Airlines Co            | Southwest Airlines Co            | CUSIP: 844741108<br>LEI: UDTZ87G0STFETI6HGH41 | Long             | EC               | CORP              | US        |    225838 | NS      | $9333884.54   | 1.21%             |  |  |  | No            |                  1 | On Loan: No      |
| Stanley Black & Decker Inc       | Stanley Black & Decker Inc       | CUSIP: 854502101<br>LEI: 549300DJ09SMTO561131 | Long             | EC               | CORP              | US        |    130679 | NS      | $9706836.12   | 1.26%             |  |  |  | No            |                  1 | On Loan: No      |
| State Street Corp                | State Street Corp                | CUSIP: 857477103<br>LEI: 549300ZFEEJ2IP5VME73 | Long             | EC               | CORP              | US        |     34638 | NS      | $4468648.38   | 0.58%             |  |  |  | No            |                  1 | On Loan: No      |
| Sun Communities Inc              | Sun Communities Inc              | CUSIP: 866674104<br>LEI: 549300H5GEOJYN41ZG57 | Long             | EC               |  | US        |     10334 | NS      | $1280485.94   | 0.17%             |  |  |  | No            |                  1 | On Loan: No      |
| T-Mobile US Inc                  | T-Mobile US Inc                  | CUSIP: 872590104<br>LEI: 549300QHIJYOHPACPG31 | Long             | EC               | CORP              | US        |     14444 | NS      | $2932709.76   | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| TC Energy Corp                   | TC Energy Corp                   | CUSIP: 87807B107<br>LEI: 549300UGKOFV2IWJJG27 | Long             | EC               | CORP              | CA        |     58145 | NS      | $3198556.45   | 0.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Teledyne Technologies Inc        | Teledyne Technologies Inc        | CUSIP: 879360105<br>LEI: 549300VSMO9KYQWDND94 | Long             | EC               | CORP              | US        |       798 | NS      | $407562.54    | 0.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Texas Instruments Inc            | Texas Instruments Inc            | CUSIP: 882508104<br>LEI: WDJNR2L6D8RWOEB8T652 | Long             | EC               | CORP              | US        |     38273 | NS      | $6639982.77   | 0.86%             |  |  |  | No            |                  1 | On Loan: No      |
| Thermo Fisher Scientific Inc     | Thermo Fisher Scientific Inc     | CUSIP: 883556102<br>LEI: HCHV7422L5HDJZCRFL38 | Long             | EC               | CORP              | US        |      7851 | NS      | $4549261.95   | 0.59%             |  |  |  | No            |                  1 | On Loan: No      |
| 3M Co                            | 3M Co                            | CUSIP: 88579Y101<br>LEI: LUZQVYP4VS22CLWDAR65 | Long             | EC               | CORP              | US        |     10336 | NS      | $1654793.60   | 0.21%             |  |  |  | No            |                  1 | On Loan: No      |
| Tyson Foods Inc                  | Tyson Foods Inc                  | CUSIP: 902494103<br>LEI: WD6L6041MNRW1JE49D58 | Long             | EC               | CORP              | US        |    105000 | NS      | $6155100.00   | 0.80%             |  |  |  | No            |                  1 | On Loan: No      |
| US Bancorp                       | US Bancorp                       | CUSIP: 902973304<br>LEI: N1GZ7BBF3NP8GI976H15 | Long             | EC               | CORP              | US        |    193611 | NS      | $10331082.96  | 1.34%             |  |  |  | No            |                  1 | On Loan: No      |
| Union Pacific Corp               | Union Pacific Corp               | CUSIP: 907818108<br>LEI: 549300LMMRSZZCZ8CL11 | Long             | EC               | CORP              | US        |     21747 | NS      | $5030516.04   | 0.65%             |  |  |  | No            |                  1 | On Loan: No      |
| United Parcel Service Inc        | United Parcel Service Inc        | CUSIP: 911312106<br>LEI: D01LMJZU09ULLNCY6Z23 | Long             | EC               | CORP              | US        |     67329 | NS      | $6678363.51   | 0.87%             |  |  |  | No            |                  1 | On Loan: No      |
| UnitedHealth Group Inc           | UnitedHealth Group Inc           | CUSIP: 91324P102<br>LEI: 549300GHBMY8T5GXDE41 | Long             | EC               | CORP              | US        |     18366 | NS      | $6062800.26   | 0.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Viatris Inc                      | Viatris Inc                      | CUSIP: 92556V106<br>LEI: 254900ZZTSW7NL773X71 | Long             | EC               | CORP              | US        |    574963 | NS      | $7158289.35   | 0.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Walmart Inc                      | Walmart Inc                      | CUSIP: 931142103<br>LEI: Y87794H0US1R65VBXU25 | Long             | EC               | CORP              | US        |     39485 | NS      | $4399023.85   | 0.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Wells Fargo & Co                 | Wells Fargo & Co                 | CUSIP: 949746101<br>LEI: PBLD0EJDB5FWOLXP3B76 | Long             | EC               | CORP              | US        |    107576 | NS      | $10026083.20  | 1.30%             |  |  |  | No            |                  1 | On Loan: No      |
| West Fraser Timber Co Ltd        | West Fraser Timber Co Ltd        | CUSIP: 952845105<br>LEI: 5493005WD1ZK6WBVR988 | Long             | EC               | CORP              | CA        |     59707 | NS      | $3648694.77   | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Weyerhaeuser Co                  | Weyerhaeuser Co                  | CUSIP: 962166104<br>LEI: 08IRJODWFYBI7QWRGS31 | Long             | EC               |  | US        |    233795 | NS      | $5538603.55   | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| Williams Cos Inc/The             | Williams Cos Inc/The             | CUSIP: 969457100<br>LEI: D71FAKCBLFS2O0RBPG08 | Long             | EC               | CORP              | US        |     54265 | NS      | $3261869.15   | 0.42%             |  |  |  | No            |                  1 | On Loan: No      |
| Xcel Energy Inc                  | Xcel Energy Inc                  | CUSIP: 98389B100<br>LEI: LGJNMI9GH8XIDG5RCM61 | Long             | EC               | CORP              | US        |     42555 | NS      | $3143112.30   | 0.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Zimmer Biomet Holdings Inc       | Zimmer Biomet Holdings Inc       | CUSIP: 98956P102<br>LEI: 2P2YLDVPES3BXQ1FRB91 | Long             | EC               | CORP              | US        |    108077 | NS      | $9718283.84   | 1.26%             |  |  |  | No            |                  1 | On Loan: No      |
| TotalEnergies SE                 | TotalEnergies SE                 | CUSIP: 000000000<br>LEI: 529900S21EQ1BO4ESM68 | Long             | EC               | CORP              | FR        |    194452 | NS      | $12673966.72  | 1.64%             |  |  |  | No            |                  2 | On Loan: No      |
| Accenture PLC                    | Accenture PLC                    | CUSIP: 000000000<br>LEI: 5493000EWHDSR3MZWH98 | Long             | EC               | CORP              | IE        |     19105 | NS      | $5125871.50   | 0.66%             |  |  |  | No            |                  1 | On Loan: No      |
| Medtronic PLC                    | Medtronic PLC                    | CUSIP: 000000000<br>LEI: 549300GX3ZBSQWUXY261 | Long             | EC               | CORP              | IE        |     69338 | NS      | $6660608.28   | 0.86%             |  |  |  | No            |                  1 | On Loan: No      |
| TE Connectivity PLC              | TE Connectivity PLC              | CUSIP: 000000000<br>LEI: 6367003TB6K484NFHE54 | Long             | EC               | CORP              | IE        |      4072 | NS      | $926420.72    | 0.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Chubb Ltd                        | Chubb Ltd                        | CUSIP: 000000000<br>LEI: E0JAN6VLUDI1HITHT809 | Long             | EC               | CORP              | CH        |     34730 | NS      | $10839927.60  | 1.40%             |  |  |  | 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