# EDGAR Filing Document

**Accession Number:** 0000742212
**File Stem:** 0001752724-23-042288
**Filing Date:** 2023-2
**Character Count:** 12625
**Document Hash:** 25fafac0e9bad894c8a72232f0aa0c07
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-23-042288.hdr.sgml**: 20230227

**ACCESSION NUMBER**: 0001752724-23-042288

**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:** 23672538

**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

### Asset Allocation Portfolio (Series ID: S000000044)

| Class ID   | Class Name                 | Ticker Symbol   |
|:---|:---|:---|
| C000000079 | Asset Allocation 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:** Asset Allocation Portfolio

- **b. EDGAR series identifier (if any):** S000000044

- **c. LEI of Series:** 5DD2LVSRPBY8KFA02K39

**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:** $257767092.83

**Total Liabilities:** $38079.50

**Net Assets:** $257729013.33

**Cash Not Reported:** $2264127.93

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000000079 | 5.12%                | 6.19%                | -3.06%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-466679.73              | $13015341.31                               |
| Month 2  | $280441.37               | $15191353.64                               |
| Month 3  | $-76610.57               | $-8222634.71                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| JPMorgan Ultra-Short Income ETF                                           | JPMorgan Ultra-Short Income ETF                                           | CUSIP: 46641Q837<br>LEI: 549300VN24B8TQAGGX74 | Long             | EC               | RF                | US        |     40300 | NS      | $2020239.00   | 0.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - International Growth Portfolio    | Northwestern Mutual Series Fund, Inc. - International Growth Portfolio    | CUSIP: 668140684<br>LEI: A7EFFZCFPQNSS1P3HZ68 | Long             | EC               | RF                | US        |   9237350 | NS      | $15019930.45  | 5.83%             |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - Domestic Equity Portfolio         | Northwestern Mutual Series Fund, Inc. - Domestic Equity Portfolio         | CUSIP: 668140791<br>LEI: 5493004TKKI7X6F71K84 | Long             | EC               | RF                | US        |  12189149 | NS      | $19880502.20  | 7.71%             |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - Focused Appreciation Portfolio    | Northwestern Mutual Series Fund, Inc. - Focused Appreciation Portfolio    | CUSIP: 668140775<br>LEI: 5493007QO6Z6UMWHLZ04 | Long             | EC               | RF                | US        |   6646192 | NS      | $18097580.67  | 7.02%             |  |  |  | No            |                  1 | On Loan: No      |
| iShares Core U.S. Aggregate Bond ETF                                      | iShares Core U.S. Aggregate Bond ETF                                      | CUSIP: 464287226<br>LEI: 549300F7VSXTKBGHJE47 | Long             | EC               | RF                | US        |     65600 | NS      | $6362544.00   | 2.47%             |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - Select Bond Portfolio             | Northwestern Mutual Series Fund, Inc. - Select Bond Portfolio             | CUSIP: 668140759<br>LEI: 03DZ35VFRGD62UKLL347 | Long             | EC               | RF                | US        |  43035324 | NS      | $45961726.47  | 17.83%            |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - Multi-Sector Bond Portfolio       | PIMCO MULTI SECTOR BD PORT MUTUAL FUND                                    | CUSIP: 668140882<br>LEI: P0C14V6IL3O47L1ZG636 | Long             | EC               | RF                | US        |  14896732 | NS      | $13570922.53  | 5.27%             |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - International Equity Portfolio    | Northwestern Mutual Series Fund, Inc. - International Equity Portfolio    | CUSIP: 668140692<br>LEI: 5493009J2EF7GK480170 | Long             | EC               | RF                | US        |  11276660 | NS      | $15798600.65  | 6.13%             |  |  |  | No            |                  1 | On Loan: No      |
| PIMCO Enhanced Short Maturity Active Exchange-Traded Fund                 | PIMCO Enhanced Short Maturity Active Exchange-Traded Fund                 | CUSIP: 72201R833<br>LEI: VOYE9Z80GB9431LFS645 | Long             | EC               | RF                | US        |     20100 | NS      | $1982865.00   | 0.77%             |  |  |  | No            |                  1 | On Loan: No      |
| iShares Core S&P Small-Cap ETF                                            | iShares Core S&P Small-Cap ETF                                            | CUSIP: 464287804<br>LEI: 549300BZQ17QYN750B25 | Long             | EC               | RF                | US        |     21200 | NS      | $2006368.00   | 0.78%             |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - High Yield Bond Portfolio         | Northwestern Mutual Series Fund, Inc. - High Yield Bond Portfolio         | CUSIP: 668140742<br>LEI: KUVC5M5XHVXDKYES4T32 | Long             | EC               | RF                | US        |  20375749 | NS      | $12775594.45  | 4.96%             |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - Short-Term Bond Portfolio.        | Northwestern Mutual Series Fund, Inc. - Short-Term Bond Portfolio.        | CUSIP: 668140601<br>LEI: BEEDB5U9NNUVQYFFEL15 | Long             | EC               | RF                | US        |   3151127 | NS      | $3119616.07   | 1.21%             |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - Mid Cap Value Portfolio           | Northwestern Mutual Series Fund, Inc. - Mid Cap Value Portfolio           | CUSIP: 668140783<br>LEI: 8TRVIGMWHSWZVXP7PI34 | Long             | EC               | RF                | US        |   9136952 | NS      | $14984601.83  | 5.81%             |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - Emerging Markets Equity Portfolio | Northwestern Mutual Series Fund, Inc. - Emerging Markets Equity Portfolio | CUSIP: 668140502<br>LEI: 549300B2SFS01R9MCJ10 | Long             | EC               | RF                | US        |   3309808 | NS      | $2958968.42   | 1.15%             |  |  |  | No            |                  1 | On Loan: No      |
| iShares Core MSCI EAFE ETF                                                | iShares Core MSCI EAFE ETF                                                | CUSIP: 46432F842<br>LEI: 5493009FT582MI7Y3I36 | Long             | EC               | RF                | US        |    137400 | NS      | $8469336.00   | 3.29%             |  |  |  | No            |                  1 | On Loan: No      |
| iShares Core MSCI Emerging Markets ETF                                    | iShares Core MSCI Emerging Markets ETF                                    | CUSIP: 46434G103<br>LEI: 5493007C24Z3ZDJ0VD06 | Long             | EC               | RF                | US        |     23600 | NS      | $1102120.00   | 0.43%             |  |  |  | No            |                  1 | On Loan: No      |
| iShares Core S&P Mid-Cap ETF                                              | iShares Core S&P Mid-Cap ETF                                              | CUSIP: 464287507<br>LEI: 549300ODQWH5PC0IUZ78 | Long             | EC               | RF                | US        |      5350 | NS      | $1294111.50   | 0.50%             |  |  |  | No            |                  1 | On Loan: No      |
| iShares Core S&P 500 ETF                                                  | iShares Core S&P 500 ETF                                                  | CUSIP: 464287200<br>LEI: 5493007M4YMN8XL48C14 | Long             | EC               | RF                | US        |     67950 | NS      | $26107069.50  | 10.13%            |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - Small Cap Value Portfolio         | Northwestern Mutual Series Fund, Inc. - Small Cap Value Portfolio         | CUSIP: 668140817<br>LEI: 5493006BEZYY47A02J59 | Long             | EC               | RF                | US        |   3408985 | NS      | $6173671.82   | 2.40%             |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - Small Cap Growth Stock Portfolio  | Northwestern Mutual Series Fund, Inc. - Small Cap Growth Stock Portfolio  | CUSIP: 668140825<br>LEI: YTR2S467AP5XPLF6CQ13 | Long             | EC               | RF                | US        |   2804874 | NS      | $5312431.21   | 2.06%             |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - Large Cap Blend Portfolio         | Northwestern Mutual Series Fund, Inc. - Large Cap Blend Portfolio         | CUSIP: 668140205<br>LEI: 549300J8IDGQV6XROU84 | Long             | EC               | RF                | US        |  17527386 | NS      | $18947104.09  | 7.35%             |  |  |  | No            |                  1 | On Loan: No      |
| Northwestern Mutual Series Fund, Inc. - Mid Cap Growth Stock Portfolio    | Northwestern Mutual Series Fund, Inc. - Mid Cap Growth Stock Portfolio    | CUSIP: 668140866<br>LEI: LIP0ME8UWTR611J45283 | Long             | EC               | RF                | US        |   4992508 | NS      | $13539682.53  | 5.25%             |  |  |  | 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