# EDGAR Filing Document

**Accession Number:** 0000742212
**File Stem:** 0001752724-25-192563
**Filing Date:** 2025-8
**Character Count:** 41336
**Document Hash:** eb4941a4ad46c43231fc738b52f5ab13
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-25-192563.hdr.sgml**: 20250819

**ACCESSION NUMBER**: 0001752724-25-192563

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250819

**DATE AS OF CHANGE**: 20250819

**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:** 251231244

**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

### Research International Core Portfolio (Series ID: S000018230)

| Class ID   | Class Name                            | Ticker Symbol   |
|:---|:---|:---|
| C000050278 | Research International Core 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:** Research International Core Portfolio

- **b. EDGAR series identifier (if any):** S000018230

- **c. LEI of Series:** 549300ZQ5NCCGE71IX14

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

- **a. Date of fiscal year-end:** 2025-12-31

- **b. Date as of which information is reported:** 2025-06-30

**Item A.4. Final filing**

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

### Fund Information

**Total Assets:** $982325908.91

**Total Liabilities:** $5738604.53

**Net Assets:** $976587304.38

**Cash Not Reported:** $21421263.70

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000050278 | 3.35%                | 5.20%                | 2.11%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $6308411.14              | $20250989.35                               |
| Month 2  | $5763865.64              | $36791779.66                               |
| Month 3  | $13412110.73             | $6454243.44                                |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| LVMH Moet Hennessy Louis Vuitton SE          | LVMH Moet Hennessy Louis Vuitton SE          | CUSIP: 000000000<br>LEI: IOG4E947OATN0KJYSD45 | Long             | EC               | CORP              | FR        |     24912 | NS      | $13065139.06  | 1.34%             |  |  |  | No            |                  2 | On Loan: No      |
| Weir Group PLC/The                           | Weir Group PLC/The                           | CUSIP: 000000000<br>LEI: 549300KDR56WHY9I3D10 | Long             | EC               | CORP              | GB        |    187787 | NS      | $6420094.08   | 0.66%             |  |  |  | No            |                  2 | On Loan: No      |
| LEG Immobilien SE                            | LEG Immobilien SE                            | CUSIP: 000000000<br>LEI: 391200SO40AKONBO0Z96 | Long             | EC               | CORP              | DE        |     43052 | NS      | $3819598.94   | 0.39%             |  |  |  | No            |                  2 | On Loan: No      |
| SMC Corp                                     | SMC Corp                                     | CUSIP: 000000000<br>LEI: 353800O40V08DOZ70X62 | Long             | EC               | CORP              | JP        |      6900 | NS      | $2484849.31   | 0.25%             |  |  |  | No            |                  2 | On Loan: No      |
| Aristocrat Leisure Ltd                       | Aristocrat Leisure Ltd                       | CUSIP: 000000000<br>LEI: 529900TE2HO3OZKYKC27 | Long             | EC               | CORP              | AU        |     90074 | NS      | $3863932.32   | 0.40%             |  |  |  | No            |                  2 | On Loan: No      |
| ASML Holding NV                              | ASML Holding NV                              | CUSIP: 000000000<br>LEI: 724500Y6DUVHQD6OXN27 | Long             | EC               | CORP              | NL        |     19357 | NS      | $15498130.37  | 1.59%             |  |  |  | No            |                  2 | On Loan: No      |
| British American Tobacco PLC                 | British American Tobacco PLC                 | CUSIP: 000000000<br>LEI: 213800FKA5MF17RJKT63 | Long             | EC               | CORP              | GB        |    289890 | NS      | $13718270.16  | 1.40%             |  |  |  | No            |                  2 | On Loan: No      |
| Mitsubishi UFJ Financial Group Inc           | Mitsubishi UFJ Financial Group Inc           | CUSIP: 000000000<br>LEI: 353800V2V8PUY9TK3E06 | Long             | EC               | CORP              | JP        |   1045000 | NS      | $14307753.43  | 1.47%             |  |  |  | No            |                  2 | On Loan: No      |
| Disco Corp                                   | Disco Corp                                   | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | JP        |      7300 | NS      | $2159987.51   | 0.22%             |  |  |  | No            |                  2 | On Loan: No      |
| Amadeus IT Group SA                          | Amadeus IT Group SA                          | CUSIP: 000000000<br>LEI: 9598004A3FTY3TEHHN09 | Long             | EC               | CORP              | ES        |    111921 | NS      | $9468321.99   | 0.97%             |  |  |  | No            |                  2 | On Loan: No      |
| Olympus Corp                                 | Olympus Corp                                 | CUSIP: 000000000<br>LEI: 5299000Y52IFDI1I2A21 | Long             | EC               | CORP              | JP        |     82600 | NS      | $980093.77    | 0.10%             |  |  |  | No            |                  2 | On Loan: No      |
| Constellation Software Inc/Canada            | Constellation Software Inc/Canada            | CUSIP: 21037X100<br>LEI: 549300B6PYHMCTDWQV29 | Long             | EC               | CORP              | CA        |      3710 | NS      | $13603651.18  | 1.39%             |  |  |  | No            |                  1 | On Loan: No      |
| CLP Holdings Ltd                             | CLP Holdings Ltd                             | CUSIP: 000000000<br>LEI: 25490002BUTSMP94GO68 | Long             | EC               | CORP              | HK        |    354500 | NS      | $2986181.79   | 0.31%             |  |  |  | No            |                  2 | On Loan: No      |
| BNP Paribas SA                               | BNP Paribas SA                               | CUSIP: 000000000<br>LEI: R0MUWSFPU8MPRO8K5P83 | Long             | EC               | CORP              | FR        |    176591 | NS      | $15905429.21  | 1.63%             |  |  |  | No            |                  2 | On Loan: No      |
| Sony Group Corp                              | Sony Group Corp                              | CUSIP: 000000000<br>LEI: 529900R5WX9N2OI2N910 | Long             | EC               | CORP              | JP        |    424700 | NS      | $11071723.18  | 1.13%             |  |  |  | No            |                  2 | On Loan: No      |
| Jeronimo Martins SGPS SA                     | Jeronimo Martins SGPS SA                     | CUSIP: 000000000<br>LEI: 259400A8SZP10GB5IB19 | Long             | EC               | CORP              | PT        |    172748 | NS      | $4374414.78   | 0.45%             |  |  |  | No            |                  2 | On Loan: No      |
| Renesas Electronics Corp                     | Renesas Electronics Corp                     | CUSIP: 000000000<br>LEI: 5299000EPC47VJQOFB81 | Long             | EC               | CORP              | JP        |    103500 | NS      | $1273693.31   | 0.13%             |  |  |  | No            |                  2 | On Loan: No      |
| Capcom Co Ltd                                | Capcom Co Ltd                                | CUSIP: 000000000<br>LEI: 529900JJWQKXS3TC8744 | Long             | EC               | CORP              | JP        |     83500 | NS      | $2850678.96   | 0.29%             |  |  |  | No            |                  2 | On Loan: No      |
| Samsung Electronics Co Ltd                   | Samsung Electronics Co Ltd                   | CUSIP: 000000000<br>LEI: 9884007ER46L6N7EI764 | Long             | EC               | CORP              | KR        |    117886 | NS      | $5226433.03   | 0.54%             |  |  |  | No            |                  2 | On Loan: No      |
| Spotify Technology SA                        | Spotify Technology SA                        | CUSIP: 000000000<br>LEI: 549300B4X0JHWV0DTD60 | Long             | EC               | CORP              | LU        |     12587 | NS      | $9658508.58   | 0.99%             |  |  |  | No            |                  1 | On Loan: No      |
| Fujitsu Ltd                                  | Fujitsu Ltd                                  | CUSIP: 000000000<br>LEI: 3538000246DHJLRTUZ24 | Long             | EC               | CORP              | JP        |    305900 | NS      | $7432163.80   | 0.76%             |  |  |  | No            |                  2 | On Loan: No      |
| James Hardie Industries PLC                  | James Hardie Industries PLC                  | CUSIP: 000000000<br>LEI: 635400NSGXKTVOO7JU45 | Long             | EC               | CORP              | IE        |    273443 | NS      | $7548267.49   | 0.77%             |  |  |  | No            |                  2 | On Loan: No      |
| Akzo Nobel NV                                | Akzo Nobel NV                                | CUSIP: 000000000<br>LEI: 724500XYIJUGXAA5QD70 | Long             | EC               | CORP              | NL        |     88330 | NS      | $6181586.30   | 0.63%             |  |  |  | No            |                  2 | On Loan: No      |
| GEA Group AG                                 | GEA Group AG                                 | CUSIP: 000000000<br>LEI: 549300PHUU0ZZWO8EO07 | Long             | EC               | CORP              | DE        |    142890 | NS      | $9996082.02   | 1.02%             |  |  |  | No            |                  2 | On Loan: No      |
| Reliance Industries Ltd                      | Reliance Industries Ltd                      | CUSIP: 000000000<br>LEI: 5493003UOETFYRONLG31 | Long             | EC               | CORP              | IN        |    321063 | NS      | $5619544.72   | 0.58%             |  |  |  | No            |                  2 | On Loan: No      |
| Hitachi Ltd                                  | Hitachi Ltd                                  | CUSIP: 000000000<br>LEI: 549300T6IPOCDWLKC615 | Long             | EC               | CORP              | JP        |    846300 | NS      | $24516333.70  | 2.51%             |  |  |  | No            |                  2 | On Loan: No      |
| Next PLC                                     | Next PLC                                     | CUSIP: 000000000<br>LEI: 213800WQD8ECPZP9PH98 | Long             | EC               | CORP              | GB        |     35324 | NS      | $6034785.70   | 0.62%             |  |  |  | No            |                  2 | On Loan: No      |
| Banco Bradesco SA                            | Banco Bradesco SA                            | CUSIP: 059460303<br>LEI: 549300CTUU1RFXHQJE44 | Long             | EC               | CORP              | BR        |   2284638 | NS      | $7059531.42   | 0.72%             |  |  |  | No            |                  1 | On Loan: No      |
| Thales SA                                    | Thales SA                                    | CUSIP: 000000000<br>LEI: 529900FNDVTQJOVVPZ19 | Long             | EC               | CORP              | FR        |     35219 | NS      | $10375676.40  | 1.06%             |  |  |  | No            |                  2 | On Loan: No      |
| Roche Holding AG                             | Roche Holding AG                             | CUSIP: 000000000<br>LEI: 549300U41AUUVOAAOB37 | Long             | EC               | CORP              | CH        |     75404 | NS      | $24650354.75  | 2.52%             |  |  |  | No            |                  2 | On Loan: No      |
| CONSTELLATION SOFTWARE INC                   | CONSTELLATION SOFTWARE INC                   | CUSIP: 000000000<br>LEI: 549300B6PYHMCTDWQV29 | N/A              | DE               |  | CA        |      5207 | NS      | $0.00         | 0.00%             |  |  |  | No            |                  3 | On Loan: No      |
| Daikin Industries Ltd                        | Daikin Industries Ltd                        | CUSIP: 000000000<br>LEI: 549300Y7FWSTSHMW5Y57 | Long             | EC               | CORP              | JP        |     60800 | NS      | $7182814.88   | 0.74%             |  |  |  | No            |                  2 | On Loan: No      |
| NXP Semiconductors NV                        | NXP Semiconductors NV                        | CUSIP: 000000000<br>LEI: 724500M9BY5293JDF951 | Long             | EC               | CORP              | NL        |     12599 | NS      | $2752755.51   | 0.28%             |  |  |  | No            |                  1 | On Loan: No      |
| TotalEnergies SE                             | TotalEnergies SE                             | CUSIP: 000000000<br>LEI: 529900S21EQ1BO4ESM68 | Long             | EC               | CORP              | FR        |    241822 | NS      | $14873830.20  | 1.52%             |  |  |  | No            |                  2 | On Loan: No      |
| Novo Nordisk A/S                             | Novo Nordisk A/S                             | CUSIP: 000000000<br>LEI: 549300DAQ1CVT6CXN342 | Long             | EC               | CORP              | DK        |    231355 | NS      | $16143483.66  | 1.65%             |  |  |  | No            |                  2 | On Loan: No      |
| NatWest Group PLC                            | NatWest Group PLC                            | CUSIP: 000000000<br>LEI: 2138005O9XJIJN4JPN90 | Long             | EC               | CORP              | GB        |   2562465 | NS      | $17992308.82  | 1.84%             |  |  |  | No            |                  2 | On Loan: No      |
| Daiichi Sankyo Co Ltd                        | Daiichi Sankyo Co Ltd                        | CUSIP: 000000000<br>LEI: 353800XGIU2IHQGC9504 | Long             | EC               | CORP              | JP        |    479200 | NS      | $11158492.65  | 1.14%             |  |  |  | No            |                  2 | On Loan: No      |
| Alimentation Couche-Tard Inc                 | Alimentation Couche-Tard Inc                 | CUSIP: 01626P148<br>LEI: 549300OSW32RVX8CCZ87 | Long             | EC               | CORP              | CA        |     74244 | NS      | $3690527.89   | 0.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Kao Corp                                     | Kao Corp                                     | CUSIP: 000000000<br>LEI: 353800HM38HFCB8RGL63 | Long             | EC               | CORP              | JP        |    151500 | NS      | $6780988.14   | 0.69%             |  |  |  | No            |                  2 | On Loan: No      |
| APA Group                                    | APA Group                                    | CUSIP: 000000000<br>LEI: 549300T9RBSX164T8H40 | Long             | EC               | CORP              | AU        |    493618 | NS      | $2654351.44   | 0.27%             |  |  |  | No            |                  2 | On Loan: No      |
| HDFC Bank Ltd                                | HDFC Bank Ltd                                | CUSIP: 000000000<br>LEI: 335800ZQ6I4E2JXENC50 | Long             | EC               | CORP              | IN        |    475344 | NS      | $11089146.84  | 1.14%             |  |  |  | No            |                  2 | On Loan: No      |
| Willis Towers Watson PLC                     | Willis Towers Watson PLC                     | CUSIP: 000000000<br>LEI: 549300WHC56FF48KL350 | Long             | EC               | CORP              | IE        |     22616 | NS      | $6931804.00   | 0.71%             |  |  |  | No            |                  1 | On Loan: No      |
| Spirax Group PLC                             | Spirax Group PLC                             | CUSIP: 000000000<br>LEI: 213800WFVZQMHOZP2W17 | Long             | EC               | CORP              | GB        |     61640 | NS      | $5039762.41   | 0.52%             |  |  |  | No            |                  2 | On Loan: No      |
| Advanced Info Service PCL                    | Advanced Info Service PCL                    | CUSIP: 000000000<br>LEI: 529900DU2YW1NO5RMU78 | Long             | EC               | CORP              | TH        |    567800 | NS      | $4838100.51   | 0.50%             |  |  |  | No            |                  1 | On Loan: No      |
| Cie Financiere Richemont SA                  | Cie Financiere Richemont SA                  | CUSIP: 000000000<br>LEI: 549300YIPGJ6UX2QPS51 | Long             | EC               | CORP              | CH        |     64054 | NS      | $12113972.97  | 1.24%             |  |  |  | No            |                  2 | On Loan: No      |
| MTU Aero Engines AG                          | MTU Aero Engines AG                          | CUSIP: 000000000<br>LEI: 529900807L67JY81RD65 | Long             | EC               | CORP              | DE        |     31484 | NS      | $14000857.61  | 1.43%             |  |  |  | No            |                  2 | On Loan: No      |
| Linde PLC                                    | Linde PLC                                    | CUSIP: 000000000<br>LEI: 5299003QR1WT0EF88V51 | Long             | EC               | CORP              | IE        |     43841 | NS      | $20569320.38  | 2.11%             |  |  |  | No            |                  1 | On Loan: No      |
| Mitsui & Co Ltd                              | Mitsui & Co Ltd                              | CUSIP: 000000000<br>LEI: 2NRSB4GOU9DD6CNW5R48 | Long             | EC               | CORP              | JP        |    367000 | NS      | $7477404.92   | 0.77%             |  |  |  | No            |                  2 | On Loan: No      |
| Symrise AG                                   | Symrise AG                                   | CUSIP: 000000000<br>LEI: 529900D82I6R9601CF26 | Long             | EC               | CORP              | DE        |     64014 | NS      | $6721651.50   | 0.69%             |  |  |  | No            |                  2 | On Loan: No      |
| Beazley PLC                                  | Beazley PLC                                  | CUSIP: 000000000<br>LEI: 213800VTOMUWD41GIT12 | Long             | EC               | CORP              | GB        |   1034336 | NS      | $13278084.21  | 1.36%             |  |  |  | No            |                  2 | On Loan: No      |
| Techtronic Industries Co Ltd                 | Techtronic Industries Co Ltd                 | CUSIP: 000000000<br>LEI: 549300HZW2SBE758OK89 | Long             | EC               | CORP              | HK        |    592500 | NS      | $6526703.89   | 0.67%             |  |  |  | No            |                  2 | On Loan: No      |
| Cellnex Telecom SA                           | Cellnex Telecom SA                           | CUSIP: 000000000<br>LEI: 5493008T4YG3AQUI7P67 | Long             | EC               | CORP              | ES        |    189513 | NS      | $7380387.39   | 0.76%             |  |  |  | No            |                  2 | On Loan: No      |
| Nestle SA                                    | Nestle SA                                    | CUSIP: 000000000<br>LEI: KY37LUS27QQX7BB93L28 | Long             | EC               | CORP              | CH        |    204185 | NS      | $20280026.82  | 2.08%             |  |  |  | No            |                  2 | On Loan: No      |
| Wolters Kluwer NV                            | Wolters Kluwer NV                            | CUSIP: 000000000<br>LEI: 724500TEM53I0U077B74 | Long             | EC               | CORP              | NL        |     54094 | NS      | $9045777.41   | 0.93%             |  |  |  | No            |                  2 | On Loan: No      |
| Samsung Fire & Marine Insurance Co Ltd       | Samsung Fire & Marine Insurance Co Ltd       | CUSIP: 000000000<br>LEI: 988400JMBDK47EW0Z936 | Long             | EC               | CORP              | KR        |     12133 | NS      | $3904640.55   | 0.40%             |  |  |  | No            |                  2 | On Loan: No      |
| Pan Pacific International Holdings Corp      | Pan Pacific International Holdings Corp      | CUSIP: 000000000<br>LEI: 529900QLHJM2E18A5763 | Long             | EC               | CORP              | JP        |    285700 | NS      | $9819641.02   | 1.01%             |  |  |  | No            |                  2 | On Loan: No      |
| London Stock Exchange Group PLC              | London Stock Exchange Group PLC              | CUSIP: 000000000<br>LEI: 213800QAUUUP6I445N30 | Long             | EC               | CORP              | GB        |     74289 | NS      | $10855009.24  | 1.11%             |  |  |  | No            |                  2 | On Loan: No      |
| Nomura Research Institute Ltd                | Nomura Research Institute Ltd                | CUSIP: 000000000<br>LEI: 5299005F1HCVF4M4QN79 | Long             | EC               | CORP              | JP        |     59600 | NS      | $2394958.56   | 0.25%             |  |  |  | No            |                  2 | On Loan: No      |
| Atlas Copco AB                               | Atlas Copco AB                               | CUSIP: 000000000<br>LEI: 213800T8PC8Q4FYJZR07 | Long             | EC               | CORP              | SE        |    527275 | NS      | $8541578.85   | 0.87%             |  |  |  | No            |                  2 | On Loan: No      |
| Cadence Design Systems Inc                   | Cadence Design Systems Inc                   | CUSIP: 127387108<br>LEI: GCT7RXJOGLXPV0NXZY22 | Long             | EC               | CORP              | US        |     28765 | NS      | $8863934.75   | 0.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Koninklijke KPN NV                           | Koninklijke KPN NV                           | CUSIP: 000000000<br>LEI: 549300YO0JZHAL7FVP81 | Long             | EC               | CORP              | NL        |   1310936 | NS      | $6398571.92   | 0.66%             |  |  |  | No            |                  2 | On Loan: No      |
| China Resources Gas Group Ltd                | China Resources Gas Group Ltd                | CUSIP: 000000000<br>LEI: 529900A0E1J5JSOKEK83 | Long             | EC               | CORP              | BM        |    885400 | NS      | $2265927.74   | 0.23%             |  |  |  | No            |                  2 | On Loan: No      |
| Bank of Ireland Group PLC                    | Bank of Ireland Group PLC                    | CUSIP: 000000000<br>LEI: 635400C8EK6DRI12LJ39 | Long             | EC               | CORP              | IE        |    995633 | NS      | $14207765.43  | 1.45%             |  |  |  | No            |                  2 | On Loan: No      |
| Sika AG                                      | Sika AG                                      | CUSIP: 000000000<br>LEI: 549300R3N69ECGYPU434 | Long             | EC               | CORP              | CH        |     27208 | NS      | $7383333.34   | 0.76%             |  |  |  | No            |                  2 | On Loan: No      |
| Mastercard Inc                               | Mastercard Inc                               | CUSIP: 57636Q104<br>LEI: AR5L2ODV9HN37376R084 | Long             | EC               | CORP              | US        |     21042 | NS      | $11824341.48  | 1.21%             |  |  |  | No            |                  1 | On Loan: No      |
| CAR Group Ltd                                | CAR Group Ltd                                | CUSIP: 000000000<br>LEI: 5299009TFWZGH2AN7D11 | Long             | EC               | CORP              | AU        |    124588 | NS      | $3068752.80   | 0.31%             |  |  |  | No            |                  2 | On Loan: No      |
| Shin-Etsu Chemical Co Ltd                    | Shin-Etsu Chemical Co Ltd                    | CUSIP: 000000000<br>LEI: 353800PX8Q64N86H5W41 | Long             | EC               | CORP              | JP        |    263300 | NS      | $8676488.78   | 0.89%             |  |  |  | No            |                  2 | On Loan: No      |
| Novonesis Novozymes B                        | Novonesis Novozymes B                        | CUSIP: 000000000<br>LEI: 529900T6WNZXD2R3JW38 | Long             | EC               | CORP              | DK        |     80996 | NS      | $5815985.60   | 0.60%             |  |  |  | No            |                  2 | On Loan: No      |
| Hellenic Telecommunications Organization SA  | Hellenic Telecommunications Organization SA  | CUSIP: 000000000<br>LEI: ELPUFM0XZRZO4LFXW404 | Long             | EC               | CORP              | GR        |     83777 | NS      | $1594686.75   | 0.16%             |  |  |  | No            |                  2 | On Loan: No      |
| Galp Energia SGPS SA                         | Galp Energia SGPS SA                         | CUSIP: 000000000<br>LEI: 2138003319Y7NM75FG53 | Long             | EC               | CORP              | PT        |    516660 | NS      | $9485112.27   | 0.97%             |  |  |  | No            |                  2 | On Loan: No      |
| ABN AMRO Bank NV                             | ABN AMRO Bank NV                             | CUSIP: 000000000<br>LEI: BFXS5XCH7N0Y05NIXW11 | Long             | EC               | CORP              | NL        |    555761 | NS      | $15216800.89  | 1.56%             |  |  |  | No            |                  2 | On Loan: No      |
| Legrand SA                                   | Legrand SA                                   | CUSIP: 000000000<br>LEI: 969500XXRPGD7HCAFA90 | Long             | EC               | CORP              | FR        |     94993 | NS      | $12688569.13  | 1.30%             |  |  |  | No            |                  2 | On Loan: No      |
| CSL Ltd                                      | CSL Ltd                                      | CUSIP: 000000000<br>LEI: 529900ECSECK5ZDQTE14 | Long             | EC               | CORP              | AU        |     56065 | NS      | $8837245.69   | 0.90%             |  |  |  | No            |                  2 | On Loan: No      |
| Julius Baer Group Ltd                        | Julius Baer Group Ltd                        | CUSIP: 000000000<br>LEI: 5299007MF0604ZGJER92 | Long             | EC               | CORP              | CH        |    190208 | NS      | $12834707.01  | 1.31%             |  |  |  | No            |                  2 | On Loan: No      |
| Suzuki Motor Corp                            | Suzuki Motor Corp                            | CUSIP: 000000000<br>LEI: 353800D83H0V3ZV1SV24 | Long             | EC               | CORP              | JP        |    563900 | NS      | $6793387.48   | 0.70%             |  |  |  | No            |                  2 | On Loan: No      |
| Burberry Group PLC                           | Burberry Group PLC                           | CUSIP: 000000000<br>LEI: 213800PE1KEFCNFR1R50 | Long             | EC               | CORP              | GB        |    146482 | NS      | $2383179.13   | 0.24%             |  |  |  | No            |                  2 | On Loan: No      |
| E.ON SE                                      | E.ON SE                                      | CUSIP: 000000000<br>LEI: Q9MAIUP40P25UFBFG033 | Long             | EC               | CORP              | DE        |    353888 | NS      | $6516122.27   | 0.67%             |  |  |  | No            |                  2 | On Loan: No      |
| Eni SpA                                      | Eni SpA                                      | CUSIP: 000000000<br>LEI: BUCRF72VH5RBN7X3VL35 | Long             | EC               | CORP              | IT        |    557513 | NS      | $9029935.87   | 0.92%             |  |  |  | No            |                  2 | On Loan: No      |
| QIAGEN NV                                    | QIAGEN NV                                    | CUSIP: 000000000<br>LEI: 54930036WK3GMCN17Z57 | Long             | EC               | CORP              | NL        |    177245 | NS      | $8533990.39   | 0.87%             |  |  |  | No            |                  2 | On Loan: No      |
| Aon PLC                                      | Aon PLC                                      | CUSIP: 000000000<br>LEI: 635400FALWQYX5E6QC64 | Long             | EC               | CORP              | IE        |     28683 | NS      | $10232947.08  | 1.05%             |  |  |  | No            |                  1 | On Loan: No      |
| B3 SA - Brasil Bolsa Balcao                  | B3 SA - Brasil Bolsa Balcao                  | CUSIP: 000000000<br>LEI: 4GTK5S46E6H318LMDS44 | Long             | EC               | CORP              | BR        |   2647800 | NS      | $7105505.88   | 0.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Euronext NV                                  | Euronext NV                                  | CUSIP: 000000000<br>LEI: 724500QJ4QSZ3H9QU415 | Long             | EC               | CORP              | NL        |    111219 | NS      | $19031426.51  | 1.95%             |  |  |  | No            |                  2 | On Loan: No      |
| Sompo Holdings Inc                           | Sompo Holdings Inc                           | CUSIP: 000000000<br>LEI: 353800CWW4SRGEYEB512 | Long             | EC               | CORP              | JP        |    201900 | NS      | $6048734.70   | 0.62%             |  |  |  | No            |                  2 | On Loan: No      |
| Hiscox Ltd                                   | Hiscox Ltd                                   | CUSIP: 000000000<br>LEI: 5493007JXOLJ0QCY2D70 | Long             | EC               | CORP              | BM        |    468457 | NS      | $8072228.43   | 0.83%             |  |  |  | No            |                  2 | On Loan: No      |
| Sanofi SA                                    | Sanofi SA                                    | CUSIP: 000000000<br>LEI: 549300E9PC51EN656011 | Long             | EC               | CORP              | FR        |    104020 | NS      | $10064724.47  | 1.03%             |  |  |  | No            |                  2 | On Loan: No      |
| Mitsubishi Electric Corp                     | Mitsubishi Electric Corp                     | CUSIP: 000000000<br>LEI: 549300TRXM9Y6561AX39 | Long             | EC               | CORP              | JP        |    560500 | NS      | $12105118.69  | 1.24%             |  |  |  | No            |                  2 | On Loan: No      |
| Capgemini SE                                 | Capgemini SE                                 | CUSIP: 000000000<br>LEI: 96950077L0TN7BAROX36 | Long             | EC               | CORP              | FR        |     18515 | NS      | $3169015.96   | 0.32%             |  |  |  | No            |                  2 | On Loan: No      |
| Barclays PLC                                 | Barclays PLC                                 | CUSIP: 000000000<br>LEI: 213800LBQA1Y9L22JB70 | Long             | EC               | CORP              | GB        |   4137643 | NS      | $19164270.99  | 1.96%             |  |  |  | No            |                  2 | On Loan: No      |
| Toyota Industries Corp                       | Toyota Industries Corp                       | CUSIP: 000000000<br>LEI: 35380000WKGEAHEMW830 | Long             | EC               | CORP              | JP        |     66400 | NS      | $7481668.06   | 0.77%             |  |  |  | No            |                  2 | On Loan: No      |
| Merck KGaA                                   | Merck KGaA                                   | CUSIP: 000000000<br>LEI: 529900OAREIS0MOPTW25 | Long             | EC               | CORP              | DE        |     54207 | NS      | $7019852.21   | 0.72%             |  |  |  | No            |                  2 | On Loan: No      |
| RB Global Inc                                | RB Global Inc                                | CUSIP: 74935Q107<br>LEI: 5493002H8U24DJXQ4886 | Long             | EC               | CORP              | CA        |     69252 | NS      | $7357214.50   | 0.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Diageo PLC                                   | Diageo PLC                                   | CUSIP: 000000000<br>LEI: 213800ZVIELEA55JMJ32 | Long             | EC               | CORP              | GB        |    358334 | NS      | $9013367.30   | 0.92%             |  |  |  | No            |                  2 | On Loan: No      |
| Cie Generale des Etablissements Michelin SCA | Cie Generale des Etablissements Michelin SCA | CUSIP: 000000000<br>LEI: 549300SOSI58J6VIW052 | Long             | EC               | CORP              | FR        |    159061 | NS      | $5918559.44   | 0.61%             |  |  |  | No            |                  2 | On Loan: No      |
| Yamaha Corp                                  | Yamaha Corp                                  | CUSIP: 000000000<br>LEI: 529900S5TENP3IJS7S02 | Long             | EC               | CORP              | JP        |    235900 | NS      | $1700042.76   | 0.17%             |  |  |  | No            |                  2 | On Loan: No      |
| Terumo Corp                                  | Terumo Corp                                  | CUSIP: 000000000<br>LEI: 353800JX1R4582QVK932 | Long             | EC               | CORP              | JP        |    252000 | NS      | $4625523.04   | 0.47%             |  |  |  | No            |                  2 | On Loan: No      |
| Glencore PLC                                 | Glencore PLC                                 | CUSIP: 000000000<br>LEI: 2138002658CPO9NBH955 | Long             | EC               | CORP              | JE        |   1804658 | NS      | $7027117.56   | 0.72%             |  |  |  | No            |                  2 | On Loan: No      |
| Erste Group Bank AG                          | Erste Group Bank AG                          | CUSIP: 000000000<br>LEI: PQOH26KWDF7CG10L6792 | Long             | EC               | CORP              | AT        |     63228 | NS      | $5374084.69   | 0.55%             |  |  |  | No            |                  2 | On Loan: No      |
| Taiwan Semiconductor Manufacturing Co Ltd    | Taiwan Semiconductor Manufacturing Co Ltd    | CUSIP: 000000000<br>LEI: 549300KB6NK5SBD14S87 | Long             | EC               | CORP              | TW        |    358189 | NS      | $12932773.85  | 1.32%             |  |  |  | No            |                  2 | On Loan: No      |
| KDDI Corp                                    | KDDI Corp                                    | CUSIP: 000000000<br>LEI: 5299003FU7V4I45FU310 | Long             | EC               | CORP              | JP        |    581900 | NS      | $9997242.18   | 1.02%             |  |  |  | No            |                  2 | On Loan: No      |
| ConvaTec Group PLC                           | ConvaTec Group PLC                           | CUSIP: 000000000<br>LEI: 213800LS272L4FIDOH92 | Long             | EC               | CORP              | GB        |   2097108 | NS      | $8303401.19   | 0.85%             |  |  |  | No            |                  2 | On Loan: No      |
| Sands China Ltd                              | Sands China Ltd                              | CUSIP: 000000000<br>LEI: 549300EVO6UZDGY05787 | Long             | EC               | CORP              | KY        |    937600 | NS      | $1956462.49   | 0.20%             |  |  |  | No            |                  2 | On Loan: No      |
| National Grid PLC                            | National Grid PLC                            | CUSIP: 000000000<br>LEI: 8R95QZMKZLJX5Q2XR704 | Long             | EC               | CORP              | GB        |    836016 | NS      | $12223709.32  | 1.25%             |  |  |  | No            |                  2 | On Loan: No      |
| AIA Group Ltd                                | AIA Group Ltd                                | CUSIP: 000000000<br>LEI: ZP5ILWVSYE4LJGMMVD57 | Long             | EC               | CORP              | HK        |    883000 | NS      | $7940619.30   | 0.81%             |  |  |  | No            |                  2 | On Loan: No      |
| Taisei Corp                                  | Taisei Corp                                  | CUSIP: 000000000<br>LEI: 529900TF7XJKIOWMLQ79 | Long             | EC               | CORP              | JP        |     86400 | NS      | $5028303.97   | 0.51%             |  |  |  | No            |                  2 | On Loan: No      |
| Ryanair Holdings PLC                         | Ryanair Holdings PLC                         | CUSIP: 783513203<br>LEI: 635400BR2ROC1FVEBQ56 | Long             | EC               | CORP              | IE        |    107623 | NS      | $6206618.41   | 0.64%             |  |  |  | No            |                  1 | On Loan: No      |
| Croda International PLC                      | Croda International PLC                      | CUSIP: 000000000<br>LEI: 2138004WCNBFJEEOXV26 | Long             | EC               | CORP              | GB        |    134311 | NS      | $5398894.10   | 0.55%             |  |  |  | No            |                  2 | On Loan: No      |
| Schneider Electric SE                        | Schneider Electric SE                        | CUSIP: 000000000<br>LEI: 969500A1YF1XUYYXS284 | Long             | EC               | CORP              | FR        |    104188 | NS      | $27782582.33  | 2.84%             |  |  |  | No            |                  2 | On Loan: No      |
| Denso Corp                                   | Denso Corp                                   | CUSIP: 000000000<br>LEI: 549300RYPA10CQM3QK38 | Long             | EC               | CORP              | JP        |    168300 | NS      | $2269779.26   | 0.23%             |  |  |  | No            |                  2 | On Loan: No      |
| Kirin Holdings Co Ltd                        | Kirin Holdings Co Ltd                        | CUSIP: 000000000<br>LEI: 353800GBVL72LLMTYM96 | Long             | EC               | CORP              | JP        |    336300 | NS      | $4709466.02   | 0.48%             |  |  |  | No            |                  2 | On Loan: No      |
| Whitbread PLC                                | Whitbread PLC                                | CUSIP: 000000000<br>LEI: 21380099VMZKRMN3EX36 | Long             | EC               | CORP              | GB        |    101943 | NS      | $3955906.24   | 0.41%             |  |  |  | No            |                  2 | On Loan: No      |
| Heineken NV                                  | Heineken NV                                  | CUSIP: 000000000<br>LEI: 724500K5PTPSST86UQ23 | Long             | EC               | CORP              | NL        |     83381 | NS      | $7300602.97   | 0.75%             |  |  |  | No            |                  2 | On Loan: No      |

### Signature

**Date Signed:** 2025-07-15

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

**Signature:** Linda Wisniewski

**Name of Signer:** Linda Wisniewski

**Title:** Controller and Chief Accounting Officer