# EDGAR Filing Document

**Accession Number:** 0000742212
**File Stem:** 0001752724-23-042296
**Filing Date:** 2023-2
**Character Count:** 15545
**Document Hash:** c02a7b1b00dabe7a8b782e382b3bf3cd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-23-042296.hdr.sgml**: 20230227

**ACCESSION NUMBER**: 0001752724-23-042296

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230227

**DATE AS OF CHANGE**: 20230227

**PERIOD START**: 20221231

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NORTHWESTERN MUTUAL SERIES FUND INC
- **CENTRAL INDEX KEY:** 0000742212
- **IRS NUMBER:** 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:** 23672549

**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

### Focused Appreciation Portfolio (Series ID: S000000055)

| Class ID   | Class Name                     | Ticker Symbol   |
|:---|:---|:---|
| C000000090 | Focused Appreciation 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:** Focused Appreciation Portfolio

- **b. EDGAR series identifier (if any):** S000000055

- **c. LEI of Series:** 5493007QO6Z6UMWHLZ04

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

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

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

**Item A.4. Final filing**

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

### Fund Information

**Total Assets:** $964447978.18

**Total Liabilities:** $561697.42

**Net Assets:** $963886280.76

**Cash Not Reported:** $4954456.20

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000000090 | 6.15%                | 7.15%                | -6.87%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $0.00                    | $56882179.84                               |
| Month 2  | $8834757.81              | $59739885.40                               |
| Month 3  | $1115734.81              | $-71636399.62                              |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Salesforce Inc                             | Salesforce Inc                             | CUSIP: 79466L302<br>LEI: RCGZFPDMRW58VJ54VR07 | Long             | EC               | CORP              | US        |    196589 | NS      | $26065735.51  | 2.70%             |  |  |  | No            |                  1 | On Loan: No      |
| Expeditors International of Washington Inc | Expeditors International of Washington Inc | CUSIP: 302130109<br>LEI: 984500B055A804AB6E40 | Long             | EC               | CORP              | US        |    187179 | NS      | $19451641.68  | 2.02%             |  |  |  | No            |                  1 | On Loan: No      |
| Vertex Pharmaceuticals Inc                 | Vertex Pharmaceuticals Inc                 | CUSIP: 92532F100<br>LEI: 54930015RAQRRZ5ZGJ91 | Long             | EC               | CORP              | US        |    108498 | NS      | $31332052.44  | 3.25%             |  |  |  | No            |                  1 | On Loan: No      |
| PayPal Holdings Inc                        | PayPal Holdings Inc                        | CUSIP: 70450Y103<br>LEI: 5493005X2GO78EFZ3E94 | Long             | EC               | CORP              | US        |    200421 | NS      | $14273983.62  | 1.48%             |  |  |  | No            |                  1 | On Loan: No      |
| Alphabet Inc                               | Alphabet Inc                               | CUSIP: 02079K305<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |    368300 | NS      | $32495109.00  | 3.37%             |  |  |  | No            |                  1 | On Loan: No      |
| Visa Inc                                   | Visa Inc                                   | CUSIP: 92826C839<br>LEI: 549300JZ4OKEHW3DPJ59 | Long             | EC               | CORP              | US        |    321440 | NS      | $66782374.40  | 6.93%             |  |  |  | No            |                  1 | On Loan: No      |
| Alibaba Group Holding Ltd                  | Alibaba Group Holding Ltd                  | CUSIP: 01609W102<br>LEI: 5493001NTNQJDH60PM02 | Long             | EC               | CORP              | KY        |    158461 | NS      | $13958829.49  | 1.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Block Inc                                  | Block Inc                                  | CUSIP: 852234103<br>LEI: 549300OHIIUWSTIZME52 | Long             | EC               | CORP              | US        |    203302 | NS      | $12775497.68  | 1.33%             |  |  |  | No            |                  1 | On Loan: No      |
| Workday Inc                                | Workday Inc                                | CUSIP: 98138H101<br>LEI: 549300J0DYC0N31V7G13 | Long             | EC               | CORP              | US        |     65492 | NS      | $10958776.36  | 1.14%             |  |  |  | No            |                  1 | On Loan: No      |
| Microsoft Corp                             | Microsoft Corp                             | CUSIP: 594918104<br>LEI: INR2EJN1ERAN0W5ZP974 | Long             | EC               | CORP              | US        |    203369 | NS      | $48771953.58  | 5.06%             |  |  |  | No            |                  1 | On Loan: No      |
| NVIDIA Corp                                | NVIDIA Corp                                | CUSIP: 67066G104<br>LEI: 549300S4KLFTLO7GSQ80 | Long             | EC               | CORP              | US        |    308570 | NS      | $45094419.80  | 4.68%             |  |  |  | No            |                  1 | On Loan: No      |
| Novo Nordisk A/S                           | Novo Nordisk A/S                           | CUSIP: 670100205<br>LEI: 549300DAQ1CVT6CXN342 | Long             | EC               | CORP              | DK        |    140696 | NS      | $19041796.64  | 1.98%             |  |  |  | No            |                  1 | On Loan: No      |
| Alphabet Inc                               | Alphabet Inc                               | CUSIP: 02079K107<br>LEI: 5493006MHB84DD0ZWV18 | Long             | EC               | CORP              | US        |    287460 | NS      | $25506325.80  | 2.65%             |  |  |  | No            |                  1 | On Loan: No      |
| Illumina Inc                               | Illumina Inc                               | CUSIP: 452327109<br>LEI: SQ95QG8SR5Q56LSNF682 | Long             | EC               | CORP              | US        |     93219 | NS      | $18848881.80  | 1.96%             |  |  |  | No            |                  1 | On Loan: No      |
| Walt Disney Co/The                         | Walt Disney Co/The                         | CUSIP: 254687106<br>LEI: 549300GZKULIZ0WOW665 | Long             | EC               | CORP              | US        |    294951 | NS      | $25625342.88  | 2.66%             |  |  |  | No            |                  1 | On Loan: No      |
| Monster Beverage Corp                      | Monster Beverage Corp                      | CUSIP: 61174X109<br>LEI: 52990090AP0E7HCB6F33 | Long             | EC               | CORP              | US        |    389060 | NS      | $39501261.80  | 4.10%             |  |  |  | No            |                  1 | On Loan: No      |
| Roche Holding AG                           | Roche Holding AG                           | CUSIP: 771195104<br>LEI: 549300U41AUUVOAAOB37 | Long             | EC               | CORP              | CH        |    521414 | NS      | $20413358.10  | 2.12%             |  |  |  | No            |                  1 | On Loan: No      |
| Netflix Inc                                | Netflix Inc                                | CUSIP: 64110L106<br>LEI: 549300Y7VHGU0I7CE873 | Long             | EC               | CORP              | US        |    135811 | NS      | $40047947.68  | 4.15%             |  |  |  | No            |                  1 | On Loan: No      |
| Intuitive Surgical Inc                     | Intuitive Surgical Inc                     | CUSIP: 46120E602<br>LEI: 54930052SRG011710797 | Long             | EC               | CORP              | US        |     57144 | NS      | $15163160.40  | 1.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Tesla Inc                                  | Tesla Inc                                  | CUSIP: 88160R101<br>LEI: 54930043XZGB27CTOV49 | Long             | EC               | CORP              | US        |    190192 | NS      | $23427850.56  | 2.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Yum China Holdings Inc                     | Yum China Holdings Inc                     | CUSIP: 98850P109<br>LEI: 529900DO9BYZ7VA3K502 | Long             | EC               | CORP              | US        |    151572 | NS      | $8283409.80   | 0.86%             |  |  |  | No            |                  1 | On Loan: No      |
| FactSet Research Systems Inc               | FactSet Research Systems Inc               | CUSIP: 303075105<br>LEI: 549300ZSJE7NBK6K9P30 | Long             | EC               | CORP              | US        |     49317 | NS      | $19786473.57  | 2.05%             |  |  |  | No            |                  1 | On Loan: No      |
| Deere & Co                                 | Deere & Co                                 | CUSIP: 244199105<br>LEI: PWFTNG3EI0Y73OXWDH08 | Long             | EC               | CORP              | US        |     27364 | NS      | $11732588.64  | 1.22%             |  |  |  | No            |                  1 | On Loan: No      |
| Meta Platforms Inc                         | Meta Platforms Inc                         | CUSIP: 30303M102<br>LEI: BQ4BKCS1HXDV9HN80Z93 | Long             | EC               | CORP              | US        |    262560 | NS      | $31596470.40  | 3.28%             |  |  |  | No            |                  1 | On Loan: No      |
| Oracle Corp                                | Oracle Corp                                | CUSIP: 68389X105<br>LEI: 1Z4GXXU7ZHVWFCD8TV52 | Long             | EC               | CORP              | US        |    567542 | NS      | $46390883.08  | 4.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Boeing Co/The                              | Boeing Co/The                              | CUSIP: 097023105<br>LEI: RVHJWBXLJ1RFUBSY1F30 | Long             | EC               | CORP              | US        |    336044 | NS      | $64013021.56  | 6.64%             |  |  |  | No            |                  1 | On Loan: No      |
| Autodesk Inc                               | Autodesk Inc                               | CUSIP: 052769106<br>LEI: FRKKVKAIQEF3FCSTPG55 | Long             | EC               | CORP              | US        |    188769 | NS      | $35275263.03  | 3.66%             |  |  |  | No            |                  1 | On Loan: No      |
| Starbucks Corp                             | Starbucks Corp                             | CUSIP: 855244109<br>LEI: OQSJ1DU9TAOC51A47K68 | Long             | EC               | CORP              | US        |    264231 | NS      | $26211715.20  | 2.72%             |  |  |  | No            |                  1 | On Loan: No      |
| Yum! Brands Inc                            | Yum! Brands Inc                            | CUSIP: 988498101<br>LEI: 549300JE8XHZZ7OHN517 | Long             | EC               | CORP              | US        |    129537 | NS      | $16591098.96  | 1.72%             |  |  |  | No            |                  1 | On Loan: No      |
| QUALCOMM Inc                               | QUALCOMM Inc                               | CUSIP: 747525103<br>LEI: H1J8DDZKZP6H7RWC0H53 | Long             | EC               | CORP              | US        |    181195 | NS      | $19920578.30  | 2.07%             |  |  |  | No            |                  1 | On Loan: No      |
| Shopify Inc                                | Shopify Inc                                | CUSIP: 82509L107<br>LEI: 549300HGQ43STJLLP808 | Long             | EC               | CORP              | CA        |    403217 | NS      | $13995662.07  | 1.45%             |  |  |  | No            |                  1 | On Loan: No      |
| Regeneron Pharmaceuticals Inc              | Regeneron Pharmaceuticals Inc              | CUSIP: 75886F107<br>LEI: 549300RCBFWIRX3HYQ56 | Long             | EC               | CORP              | US        |     36695 | NS      | $26475075.55  | 2.75%             |  |  |  | No            |                  1 | On Loan: No      |
| Novartis AG                                | Novartis AG                                | CUSIP: 66987V109<br>LEI: 5493007HIVTX6SY6XD66 | Long             | EC               | CORP              | CH        |    309097 | NS      | $28041279.84  | 2.91%             |  |  |  | No            |                  1 | On Loan: No      |
| Amazon.com Inc                             | Amazon.com Inc                             | CUSIP: 023135106<br>LEI: ZXTILKJKG63JELOEG630 | Long             | EC               | CORP              | US        |    507758 | NS      | $42651672.00  | 4.42%             |  |  |  | No            |                  1 | On Loan: No      |
| SEI Investments Co                         | SEI Investments Co                         | CUSIP: 784117103<br>LEI: 5LJTIFADGZ6XH1RVOC11 | Long             | EC               | CORP              | US        |    280939 | NS      | $16378743.70  | 1.70%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2023-01-25

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

**Signature:** Phillip Rinzel

**Name of Signer:** Phillip Rinzel

**Title:** Controller and Chief Accounting Officer