# EDGAR Filing Document

**Accession Number:** 0000742212
**File Stem:** 0001410368-26-016290
**Filing Date:** 2026-2
**Character Count:** 25674
**Document Hash:** 4e2de6013f68b366b0b6e6b3c190e771
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-016290.hdr.sgml**: 20260223

**ACCESSION NUMBER**: 0001410368-26-016290

**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:** 26664729

**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

### Emerging Markets Equity Portfolio (Series ID: S000018232)

| Class ID   | Class Name                        | Ticker Symbol   |
|:---|:---|:---|
| C000050280 | Emerging Markets Equity 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:** Emerging Markets Equity Portfolio

- **b. EDGAR series identifier (if any):** S000018232

- **c. LEI of Series:** 549300B2SFS01R9MCJ10

**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:** $1307458569.03

**Total Liabilities:** $8155418.30

**Net Assets:** $1299303150.73

**Cash Not Reported:** $16318976.54

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000050280 | 3.67%                | -2.12%               | 2.09%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $26813229.65             | $21870529.36                               |
| Month 2  | $15607781.95             | $-43905477.00                              |
| Month 3  | $18995341.05             | $5658560.73                                |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Rio Tinto PLC                                       | Rio Tinto PLC                                       | CUSIP: 000000000<br>LEI: 213800YOEO5OQ72G2R82 | Long             | EC               | CORP              | GB        |    164369 | NS      | $13114165.46  | 1.01%             |  |  |  | No            |                  2 | On Loan: No      |
| Grupo Financiero Banorte SAB de CV                  | Grupo Financiero Banorte SAB de CV                  | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | MX        |   1327153 | NS      | $12303480.32  | 0.95%             |  |  |  | No            |                  1 | On Loan: No      |
| Itausa SA                                           | Itausa SA                                           | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | BR        |   8873981 | NS      | $18878678.59  | 1.45%             |  |  |  | No            |                  2 | On Loan: No      |
| Grupo Aeroportuario del Sureste SAB de CV           | Grupo Aeroportuario del Sureste SAB de CV           | CUSIP: 000000000<br>LEI: 5299001W7JIDXCUOUC82 | Long             | EC               | CORP              | MX        |    358597 | NS      | $11533650.45  | 0.89%             |  |  |  | No            |                  1 | On Loan: No      |
| Grupo Mexico SAB de CV                              | Grupo Mexico SAB de CV                              | CUSIP: 000000000<br>LEI: 529900JWLZAYET2ZGW20 | Long             | EC               | CORP              | MX        |   5164428 | NS      | $48763442.61  | 3.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Sberbank of Russia PJSC                             | Sberbank of Russia PJSC                             | CUSIP: 000000000<br>LEI: 549300WE6TAF5EEWQS81 | Long             | EC               | CORP              | RU        |   1471064 | NS      | $0.00         | 0.00%             |  |  |  | No            |                  3 | On Loan: No      |
| Kaspi.KZ JSC                                        | Kaspi.KZ JSC                                        | CUSIP: 48581R205<br>LEI: 2549003YU6FARG8OAZ13 | Long             | EC               | CORP              | KZ        |     77564 | NS      | $6060075.32   | 0.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Abu Dhabi Islamic Bank PJSC                         | Abu Dhabi Islamic Bank PJSC                         | CUSIP: 000000000<br>LEI: 5493006DOLY8O98XHD74 | Long             | EC               | CORP              | AE        |   3520206 | NS      | $19898588.98  | 1.53%             |  |  |  | No            |                  2 | On Loan: No      |
| Accton Technology Corp                              | Accton Technology Corp                              | CUSIP: 000000000<br>LEI: 529900M1YRZ0GWMDF920 | Long             | EC               | CORP              | TW        |    388000 | NS      | $14532694.57  | 1.12%             |  |  |  | No            |                  2 | On Loan: No      |
| Mahindra & Mahindra Ltd                             | Mahindra & Mahindra Ltd                             | CUSIP: 000000000<br>LEI: 3358003B573EV4KB4Z02 | Long             | EC               | CORP              | IN        |    484798 | NS      | $20009991.94  | 1.54%             |  |  |  | No            |                  2 | On Loan: No      |
| China Resources Land Ltd                            | China Resources Land Ltd                            | CUSIP: 000000000<br>LEI: 5299001HL0TU7X15HK51 | Long             | EC               | CORP              | KY        |   2490000 | NS      | $8672868.33   | 0.67%             |  |  |  | No            |                  2 | On Loan: No      |
| Delta Electronics Inc                               | Delta Electronics Inc                               | CUSIP: 000000000<br>LEI: 529900UVZWNWGDLJSM52 | Long             | EC               | CORP              | TW        |    557000 | NS      | $16948115.31  | 1.30%             |  |  |  | No            |                  2 | On Loan: No      |
| NAC Kazatomprom JSC                                 | NAC Kazatomprom JSC                                 | CUSIP: 63253R201<br>LEI: 5493008JG5TXJP2JSY44 | Long             | EC               | CORP              | KZ        |    139750 | NS      | $7798050.00   | 0.60%             |  |  |  | No            |                  1 | On Loan: No      |
| MediaTek Inc                                        | MediaTek Inc                                        | CUSIP: 000000000<br>LEI: 254900UEGBK1I4DM4E14 | Long             | EC               | CORP              | TW        |    464000 | NS      | $21024570.03  | 1.62%             |  |  |  | No            |                  2 | On Loan: No      |
| Shinhan Financial Group Co Ltd                      | Shinhan Financial Group Co Ltd                      | CUSIP: 000000000<br>LEI: 988400EB8A6G49E5KO54 | Long             | EC               | CORP              | KR        |    370300 | NS      | $19760995.02  | 1.52%             |  |  |  | No            |                  2 | On Loan: No      |
| Bharti Airtel Ltd                                   | Bharti Airtel Ltd                                   | CUSIP: 000000000<br>LEI: 335800KQ1FPKOQ84OR26 | Long             | EC               | CORP              | IN        |    834862 | NS      | $19585121.88  | 1.51%             |  |  |  | No            |                  2 | On Loan: No      |
| HD Korea Shipbuilding & Offshore Engineering Co Ltd | HD Korea Shipbuilding & Offshore Engineering Co Ltd | CUSIP: 000000000<br>LEI: 988400DPTJ9KH5R6W540 | Long             | EC               | CORP              | KR        |     45466 | NS      | $12852695.56  | 0.99%             |  |  |  | No            |                  2 | On Loan: No      |
| SK hynix Inc                                        | SK hynix Inc                                        | CUSIP: 000000000<br>LEI: 988400XAIK6XISWQV045 | Long             | EC               | CORP              | KR        |     86762 | NS      | $39288037.00  | 3.02%             |  |  |  | No            |                  2 | On Loan: No      |
| PICC Property & Casualty Co Ltd                     | PICC Property & Casualty Co Ltd                     | CUSIP: 000000000<br>LEI: 300300F1000311000017 | Long             | EC               | CORP              | CN        |   6483900 | NS      | $13594193.21  | 1.05%             |  |  |  | No            |                  2 | On Loan: No      |
| Bank Negara Indonesia Persero Tbk PT                | Bank Negara Indonesia Persero Tbk PT                | CUSIP: 000000000<br>LEI: 549300HZ8J3MLVXQ8F85 | Long             | EC               | CORP              | ID        |  90318500 | NS      | $23666740.82  | 1.82%             |  |  |  | No            |                  2 | On Loan: No      |
| Samsung Electronics Co Ltd                          | Samsung Electronics Co Ltd                          | CUSIP: 000000000<br>LEI: 9884007ER46L6N7EI764 | Long             | EP               | CORP              | KR        |   1153243 | NS      | $70772747.67  | 5.45%             |  |  |  | No            |                  2 | On Loan: No      |
| Taiwan Semiconductor Manufacturing Co Ltd           | Taiwan Semiconductor Manufacturing Co Ltd           | CUSIP: 000000000<br>LEI: 549300KB6NK5SBD14S87 | Long             | EC               | CORP              | TW        |   3317290 | NS      | $162060820.89 | 12.47%            |  |  |  | No            |                  2 | On Loan: No      |
| Godrej Properties Ltd                               | Godrej Properties Ltd                               | CUSIP: 000000000<br>LEI: 335800KM3Y5NZWXOE183 | Long             | EC               | CORP              | IN        |    366064 | NS      | $8164325.95   | 0.63%             |  |  |  | No            |                  2 | On Loan: No      |
| Havells India Ltd                                   | Havells India Ltd                                   | CUSIP: 000000000<br>LEI: 549300U1LOGHTTNT7D47 | Long             | EC               | CORP              | IN        |    358864 | NS      | $5683992.70   | 0.44%             |  |  |  | No            |                  2 | On Loan: No      |
| Samsung C&T Corp                                    | Samsung C&T Corp                                    | CUSIP: 000000000<br>LEI: 988400GFRE4IDFPE9E64 | Long             | EC               | CORP              | KR        |     75443 | NS      | $12428544.21  | 0.96%             |  |  |  | No            |                  2 | On Loan: No      |
| HD Hyundai Electric Co Ltd                          | HD Hyundai Electric Co Ltd                          | CUSIP: 000000000<br>LEI: 988400CSDKM9UHLHGB91 | Long             | EC               | CORP              | KR        |     23651 | NS      | $12725298.67  | 0.98%             |  |  |  | No            |                  2 | On Loan: No      |
| ASE Technology Holding Co Ltd                       | ASE Technology Holding Co Ltd                       | CUSIP: 000000000<br>LEI: 300300GO8QHPMV87NZ73 | Long             | EC               | CORP              | TW        |   1589000 | NS      | $12596869.12  | 0.97%             |  |  |  | No            |                  2 | On Loan: No      |
| National Bank of Greece SA                          | National Bank of Greece SA                          | CUSIP: 000000000<br>LEI: 5UMCZOEYKCVFAW8ZLO05 | Long             | EC               | CORP              | GR        |   1185843 | NS      | $18062303.18  | 1.39%             |  |  |  | No            |                  2 | On Loan: No      |
| Giant Biogene Holding Co ltd                        | Giant Biogene Holding Co ltd                        | CUSIP: 000000000<br>LEI: 391200HMPBKVFGL0V252 | Long             | EC               | CORP              | KY        |   2089000 | NS      | $8903838.35   | 0.69%             |  |  |  | No            |                  2 | On Loan: No      |
| Midea Group Co Ltd                                  | Midea Group Co Ltd                                  | CUSIP: 000000000<br>LEI: 3003003TRPHLHZD2IF61 | Long             | EC               | CORP              | CN        |   1736000 | NS      | $18910969.13  | 1.46%             |  |  |  | No            |                  2 | On Loan: No      |
| Techtronic Industries Co Ltd                        | Techtronic Industries Co Ltd                        | CUSIP: 000000000<br>LEI: 549300HZW2SBE758OK89 | Long             | EC               | CORP              | HK        |   1067500 | NS      | $12264272.91  | 0.94%             |  |  |  | No            |                  2 | On Loan: No      |
| UltraTech Cement Ltd                                | UltraTech Cement Ltd                                | CUSIP: 000000000<br>LEI: 335800PC9O9B4BQHG814 | Long             | EC               | CORP              | IN        |    110064 | NS      | $14418506.91  | 1.11%             |  |  |  | No            |                  2 | On Loan: No      |
| Tata Consultancy Services Ltd                       | Tata Consultancy Services Ltd                       | CUSIP: 000000000<br>LEI: 335800ZJKU9GPQRE2U66 | Long             | EC               | CORP              | IN        |    403686 | NS      | $14431073.22  | 1.11%             |  |  |  | No            |                  2 | On Loan: No      |
| NTPC Ltd                                            | NTPC Ltd                                            | CUSIP: 000000000<br>LEI: 335800Q4TRGJXNLVMB81 | Long             | EC               | CORP              | IN        |   3223684 | NS      | $11815096.00  | 0.91%             |  |  |  | No            |                  2 | On Loan: No      |
| Sanlam Ltd                                          | Sanlam Ltd                                          | CUSIP: 000000000<br>LEI: 37890014418406D9FC23 | Long             | EC               | CORP              | ZA        |   2370818 | NS      | $14075988.70  | 1.08%             |  |  |  | No            |                  2 | On Loan: No      |
| Aldar Properties PJSC                               | Aldar Properties PJSC                               | CUSIP: 000000000<br>LEI: 98450048CD8AEF13B480 | Long             | EC               | CORP              | AE        |   4928822 | NS      | $11676056.23  | 0.90%             |  |  |  | No            |                  2 | On Loan: No      |
| Torrent Pharmaceuticals Ltd                         | Torrent Pharmaceuticals Ltd                         | CUSIP: 000000000<br>LEI: 335800NA6HK275RIJE13 | Long             | EC               | CORP              | IN        |    340505 | NS      | $14584979.32  | 1.12%             |  |  |  | No            |                  2 | On Loan: No      |
| Al Rajhi Bank                                       | Al Rajhi Bank                                       | CUSIP: 000000000<br>LEI: 558600BQZS4Y1DTU8589 | Long             | EC               | CORP              | SA        |    915356 | NS      | $23794893.73  | 1.83%             |  |  |  | No            |                  2 | On Loan: No      |
| China Merchants Bank Co Ltd                         | China Merchants Bank Co Ltd                         | CUSIP: 000000000<br>LEI: 549300MKO5B60FFIHF58 | Long             | EC               | CORP              | CN        |   2916000 | NS      | $19720064.19  | 1.52%             |  |  |  | No            |                  2 | On Loan: No      |
| Indian Hotels Co Ltd/The                            | Indian Hotels Co Ltd/The                            | CUSIP: 000000000<br>LEI: 33580076CH5SBY5HWA22 | Long             | EC               | CORP              | IN        |   1813239 | NS      | $14900978.04  | 1.15%             |  |  |  | No            |                  2 | On Loan: No      |
| ANTA Sports Products Ltd                            | ANTA Sports Products Ltd                            | CUSIP: 000000000<br>LEI: 529900291XG0CTK4LF95 | Long             | EC               | CORP              | KY        |   1183800 | NS      | $12228171.97  | 0.94%             |  |  |  | No            |                  2 | On Loan: No      |
| Multiplan Empreendimentos Imobiliarios SA           | Multiplan Empreendimentos Imobiliarios SA           | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | BR        |   1676162 | NS      | $8308136.80   | 0.64%             |  |  |  | No            |                  2 | On Loan: No      |
| AIA Group Ltd                                       | AIA Group Ltd                                       | CUSIP: 000000000<br>LEI: ZP5ILWVSYE4LJGMMVD57 | Long             | EC               | CORP              | HK        |   1472600 | NS      | $15125800.86  | 1.16%             |  |  |  | No            |                  2 | On Loan: No      |
| Raia Drogasil SA                                    | Raia Drogasil SA                                    | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | BR        |   2184979 | NS      | $9371467.14   | 0.72%             |  |  |  | No            |                  2 | On Loan: No      |
| Telkom Indonesia Persero Tbk PT                     | Telkom Indonesia Persero Tbk PT                     | CUSIP: 000000000<br>LEI: 529900M5SQZAOKV1PC81 | Long             | EC               | CORP              | ID        | 100346000 | NS      | $20870781.30  | 1.61%             |  |  |  | No            |                  2 | On Loan: No      |
| NAURA Technology Group Co Ltd                       | NAURA Technology Group Co Ltd                       | CUSIP: 000000000<br>LEI: 300300JI5I0B95GO5C39 | Long             | EC               | CORP              | CN        |    272005 | NS      | $17806805.31  | 1.37%             |  |  |  | No            |                  2 | On Loan: No      |
| Xiaomi Corp                                         | Xiaomi Corp                                         | CUSIP: 000000000<br>LEI: 2549001ACVFAZRNMKL32 | Long             | EC               | CORP              | KY        |   2927600 | NS      | $14775775.17  | 1.14%             |  |  |  | No            |                  2 | On Loan: No      |
| Shenzhen Mindray Bio-Medical Electronics Co Ltd     | Shenzhen Mindray Bio-Medical Electronics Co Ltd     | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | CN        |    162215 | NS      | $4420992.29   | 0.34%             |  |  |  | No            |                  2 | On Loan: No      |
| Contemporary Amperex Technology Co Ltd              | Contemporary Amperex Technology Co Ltd              | CUSIP: 000000000<br>LEI: 300300KINDY1K0E9I032 | Long             | EC               | CORP              | CN        |    541749 | NS      | $28361774.29  | 2.18%             |  |  |  | No            |                  2 | On Loan: No      |
| Cholamandalam Investment and Finance Co Ltd         | Cholamandalam Investment and Finance Co Ltd         | CUSIP: 000000000<br>LEI: 3358008DNPV45O4EII52 | Long             | EC               | CORP              | IN        |    993802 | NS      | $18779413.97  | 1.45%             |  |  |  | No            |                  2 | On Loan: No      |
| HDFC Bank Ltd                                       | HDFC Bank Ltd                                       | CUSIP: 000000000<br>LEI: 335800ZQ6I4E2JXENC50 | Long             | EC               | CORP              | IN        |   4738238 | NS      | $52357747.41  | 4.03%             |  |  |  | No            |                  2 | On Loan: No      |
| Alibaba Group Holding Ltd                           | Alibaba Group Holding Ltd                           | CUSIP: 000000000<br>LEI: 5493001NTNQJDH60PM02 | Long             | EC               | CORP              | KY        |   3212300 | NS      | $58789580.29  | 4.52%             |  |  |  | No            |                  2 | On Loan: No      |
| Tencent Holdings Ltd                                | Tencent Holdings Ltd                                | CUSIP: 000000000<br>LEI: 254900N4SLUMW4XUYY11 | Long             | EC               | CORP              | KY        |   1319600 | NS      | $101117301.71 | 7.78%             |  |  |  | No            |                  2 | On Loan: No      |
| InPost SA                                           | InPost SA                                           | CUSIP: 000000000<br>LEI: 2221003M23QLERR89585 | Long             | EC               | CORP              | LU        |    401310 | NS      | $4915546.76   | 0.38%             |  |  |  | No            |                  2 | On Loan: No      |
| JB Chemicals & Pharmaceuticals Ltd                  | JB Chemicals & Pharmaceuticals Ltd                  | CUSIP: 000000000<br>LEI: 335800EZQUJ9BB5YBV04 | Long             | EC               | CORP              | IN        |    286065 | NS      | $5784026.49   | 0.45%             |  |  |  | No            |                  2 | On Loan: No      |
| Trip.com Group Ltd                                  | Trip.com Group Ltd                                  | CUSIP: 000000000<br>LEI: 2549004RMYDSRQL4KW41 | Long             | EC               | CORP              | KY        |    245900 | NS      | $17639316.80  | 1.36%             |  |  |  | No            |                  2 | On Loan: No      |
| Kweichow Moutai Co Ltd                              | Kweichow Moutai Co Ltd                              | CUSIP: 000000000<br>LEI: N/A                  | Long             | EC               | CORP              | CN        |     53573 | NS      | $10550423.87  | 0.81%             |  |  |  | No            |                  2 | On Loan: No      |
| NARI Technology Co Ltd                              | NARI Technology Co Ltd                              | CUSIP: 000000000<br>LEI: 3003006IGH1W58MAQM05 | Long             | EC               | CORP              | CN        |   3495098 | NS      | $11225312.60  | 0.86%             |  |  |  | No            |                  2 | On Loan: No      |
| Zabka Group SA                                      | Zabka Group SA                                      | CUSIP: 000000000<br>LEI: 549300TU2RZ35E4ET914 | Long             | EC               | CORP              | LU        |   1425551 | NS      | $9082071.85   | 0.70%             |  |  |  | No            |                  2 | On Loan: No      |
| SBI Life Insurance Co Ltd                           | SBI Life Insurance Co Ltd                           | CUSIP: 000000000<br>LEI: 335800WMVIESQUO95586 | Long             | EC               | CORP              | IN        |    861837 | NS      | $19482349.18  | 1.50%             |  |  |  | No            |                  2 | On Loan: No      |
| NU Holdings Ltd/Cayman Islands                      | NU Holdings Ltd/Cayman Islands                      | CUSIP: 000000000<br>LEI: 5493002DG1RHWK9W2X27 | Long             | EC               | CORP              | KY        |   1115529 | NS      | $18673955.46  | 1.44%             |  |  |  | No            |                  1 | On Loan: No      |
| Russian Ruble                                       | Russian Ruble                                       | CUSIP: 000000000<br>LEI: N/A                  | Long             |  |  | RU        |  31325353 | NS      | $396022.16    | 0.03%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2026-01-16

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

**Signature:** Linda Wisniewski

**Name of Signer:** Linda Wisniewski

**Title:** Controller and Chief Accounting Officer