# EDGAR Filing Document

**Accession Number:** 0000742212
**File Stem:** 0001683863-23-002604
**Filing Date:** 2023-3
**Character Count:** 13145
**Document Hash:** 4220886e03ad4963280321172876113f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001683863-23-002604.hdr.sgml**: 20230324

**ACCESSION NUMBER**: 0001683863-23-002604

**CONFORMED SUBMISSION TYPE**: 24F-2NT

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230324

**DATE AS OF CHANGE**: 20230324

**EFFECTIVENESS DATE**: 20230324

**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:** 24F-2NT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-89971
- **FILM NUMBER:** 23760462

**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

### Small Cap Growth Stock Portfolio (Series ID: S000000039)

---

|  |  |
|:---|:---|
| Class Name                       | Class ID   |
| Small Cap Growth Stock Portfolio | C000000074 |

---

### Large Cap Core Stock Portfolio (Series ID: S000000040)

---

|  |  |
|:---|:---|
| Class Name                     | Class ID   |
| Large Cap Core Stock Portfolio | C000000075 |

---

### Domestic Equity Portfolio (Series ID: S000000041)

---

|  |  |
|:---|:---|
| Class Name                | Class ID   |
| Domestic Equity Portfolio | C000000076 |

---

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

---

|  |  |
|:---|:---|
| Class Name              | Class ID   |
| Equity Income Portfolio | C000000077 |

---

### Index 500 Stock Portfolio (Series ID: S000000043)

---

|  |  |
|:---|:---|
| Class Name                | Class ID   |
| Index 500 Stock Portfolio | C000000078 |

---

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

---

|  |  |
|:---|:---|
| Class Name                 | Class ID   |
| Asset Allocation Portfolio | C000000079 |

---

### Balanced Portfolio (Series ID: S000000045)

---

|  |  |
|:---|:---|
| Class Name         | Class ID   |
| Balanced Portfolio | C000000080 |

---

### High Yield Bond Portfolio (Series ID: S000000046)

---

|  |  |
|:---|:---|
| Class Name                | Class ID   |
| High Yield Bond Portfolio | C000000081 |

---

### Select Bond Portfolio (Series ID: S000000047)

---

|  |  |
|:---|:---|
| Class Name            | Class ID   |
| Select Bond Portfolio | C000000082 |

---

### Government Money Market Portfolio (Series ID: S000000048)

---

|  |  |
|:---|:---|
| Class Name                        | Class ID   |
| Government Money Market Portfolio | C000000083 |

---

### Small Cap Value Portfolio (Series ID: S000000049)

---

|  |  |
|:---|:---|
| Class Name                | Class ID   |
| Small Cap Value Portfolio | C000000084 |

---

### Mid Cap Growth Stock Portfolio (Series ID: S000000050)

---

|  |  |
|:---|:---|
| Class Name                     | Class ID   |
| Mid Cap Growth Stock Portfolio | C000000085 |

---

### International Growth Portfolio (Series ID: S000000051)

---

|  |  |
|:---|:---|
| Class Name                     | Class ID   |
| International Growth Portfolio | C000000086 |

---

### International Equity Portfolio (Series ID: S000000052)

---

|  |  |
|:---|:---|
| Class Name                     | Class ID   |
| International Equity Portfolio | C000000087 |

---

### Mid Cap Value Portfolio (Series ID: S000000053)

---

|  |  |
|:---|:---|
| Class Name              | Class ID   |
| Mid Cap Value Portfolio | C000000088 |

---

### Index 400 Stock Portfolio (Series ID: S000000054)

---

|  |  |
|:---|:---|
| Class Name                | Class ID   |
| Index 400 Stock Portfolio | C000000089 |

---

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

---

|  |  |
|:---|:---|
| Class Name                     | Class ID   |
| Focused Appreciation Portfolio | C000000090 |

---

### Growth Stock Portfolio (Series ID: S000000056)

---

|  |  |
|:---|:---|
| Class Name             | Class ID   |
| Growth Stock Portfolio | C000000091 |

---

### Large Company Value Portfolio (Series ID: S000018227)

---

|  |  |
|:---|:---|
| Class Name                    | Class ID   |
| Large Company Value Portfolio | C000050275 |

---

### Inflation Protection Portfolio (Series ID: S000018228)

---

|  |  |
|:---|:---|
| Class Name                     | Class ID   |
| Inflation Protection Portfolio | C000050276 |

---

### Large Cap Blend Portfolio (Series ID: S000018229)

---

|  |  |
|:---|:---|
| Class Name                | Class ID   |
| Large Cap Blend Portfolio | C000050277 |

---

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

---

|  |  |
|:---|:---|
| Class Name                            | Class ID   |
| Research International Core Portfolio | C000050278 |

---

### Index 600 Stock Portfolio (Series ID: S000018231)

---

|  |  |
|:---|:---|
| Class Name                | Class ID   |
| Index 600 Stock Portfolio | C000050279 |

---

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

---

|  |  |
|:---|:---|
| Class Name                        | Class ID   |
| Emerging Markets Equity Portfolio | C000050280 |

---

### Short-Term Bond Portfolio (Series ID: S000018233)

---

|  |  |
|:---|:---|
| Class Name                | Class ID   |
| Short-Term Bond Portfolio | C000050281 |

---

### Long-Term US Government Bond Portfolio (Series ID: S000018234)

---

|  |  |
|:---|:---|
| Class Name                             | Class ID   |
| Long-Term US Government Bond Portfolio | C000050282 |

---

### Multi-Sector Bond Portfolio (Series ID: S000018235)

---

|  |  |
|:---|:---|
| Class Name                  | Class ID   |
| Multi-Sector Bond Portfolio | C000050283 |

---

## Series and Classes Contracts Data

### Small Cap Growth Stock Portfolio (Series ID: S000000039)

| Class ID   | Class Name                       | Ticker Symbol   |
|:---|:---|:---|
| C000000074 | Small Cap Growth Stock Portfolio |  |

### Large Cap Core Stock Portfolio (Series ID: S000000040)

| Class ID   | Class Name                     | Ticker Symbol   |
|:---|:---|:---|
| C000000075 | Large Cap Core Stock Portfolio |  |

### Domestic Equity Portfolio (Series ID: S000000041)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000000076 | Domestic Equity Portfolio |  |

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

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

### Index 500 Stock Portfolio (Series ID: S000000043)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000000078 | Index 500 Stock Portfolio |  |

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

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

### Balanced Portfolio (Series ID: S000000045)

| Class ID   | Class Name         | Ticker Symbol   |
|:---|:---|:---|
| C000000080 | Balanced Portfolio |  |

### High Yield Bond Portfolio (Series ID: S000000046)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000000081 | High Yield Bond Portfolio |  |

### Select Bond Portfolio (Series ID: S000000047)

| Class ID   | Class Name            | Ticker Symbol   |
|:---|:---|:---|
| C000000082 | Select Bond Portfolio |  |

### Government Money Market Portfolio (Series ID: S000000048)

| Class ID   | Class Name                        | Ticker Symbol   |
|:---|:---|:---|
| C000000083 | Government Money Market Portfolio |  |

### Small Cap Value Portfolio (Series ID: S000000049)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000000084 | Small Cap Value Portfolio |  |

### Mid Cap Growth Stock Portfolio (Series ID: S000000050)

| Class ID   | Class Name                     | Ticker Symbol   |
|:---|:---|:---|
| C000000085 | Mid Cap Growth Stock Portfolio |  |

### International Growth Portfolio (Series ID: S000000051)

| Class ID   | Class Name                     | Ticker Symbol   |
|:---|:---|:---|
| C000000086 | International Growth Portfolio |  |

### International Equity Portfolio (Series ID: S000000052)

| Class ID   | Class Name                     | Ticker Symbol   |
|:---|:---|:---|
| C000000087 | International Equity Portfolio |  |

### Mid Cap Value Portfolio (Series ID: S000000053)

| Class ID   | Class Name              | Ticker Symbol   |
|:---|:---|:---|
| C000000088 | Mid Cap Value Portfolio |  |

### Index 400 Stock Portfolio (Series ID: S000000054)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000000089 | Index 400 Stock Portfolio |  |

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

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

### Growth Stock Portfolio (Series ID: S000000056)

| Class ID   | Class Name             | Ticker Symbol   |
|:---|:---|:---|
| C000000091 | Growth Stock Portfolio |  |

### Large Company Value Portfolio (Series ID: S000018227)

| Class ID   | Class Name                    | Ticker Symbol   |
|:---|:---|:---|
| C000050275 | Large Company Value Portfolio |  |

### Inflation Protection Portfolio (Series ID: S000018228)

| Class ID   | Class Name                     | Ticker Symbol   |
|:---|:---|:---|
| C000050276 | Inflation Protection Portfolio |  |

### Large Cap Blend Portfolio (Series ID: S000018229)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000050277 | Large Cap Blend Portfolio |  |

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

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

### Index 600 Stock Portfolio (Series ID: S000018231)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000050279 | Index 600 Stock Portfolio |  |

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

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

### Short-Term Bond Portfolio (Series ID: S000018233)

| Class ID   | Class Name                | Ticker Symbol   |
|:---|:---|:---|
| C000050281 | Short-Term Bond Portfolio |  |

### Long-Term US Government Bond Portfolio (Series ID: S000018234)

| Class ID   | Class Name                             | Ticker Symbol   |
|:---|:---|:---|
| C000050282 | Long-Term US Government Bond Portfolio |  |

### Multi-Sector Bond Portfolio (Series ID: S000018235)

| Class ID   | Class Name                  | Ticker Symbol   |
|:---|:---|:---|
| C000050283 | Multi-Sector Bond Portfolio |  |

## FORM 24F-2NT: Annual Notice of Securities Sold Pursuant to Rule 24f-2

### 24F-2NT: Filer Information

**Filer CIK:** 742212

**Is this a LIVE or TEST Filing?:** LIVE

**Filer Investment Company Type:** N-1A

### 24F-2NT: Annual Filing Information

**1. Name and address of issuer:**

- **Name of Issuer:** NORTHWESTERN MUTUAL SERIES FUND INC

- **Address:** 720 East Wisconsin Avenue, Milwaukee, WI 53202

**2. The Name and EDGAR Identifier of each series or class of securities for which this Form is filed:**

- [ ] Check box if the Form is being filed for all series and classes of the issuer.

**3. Investment Company Act File Number:** 811-3990

   **Securities Act File Number:** 002-89971

**4(a). Last day of fiscal year for which this Form is filed:** 12/31/2022

**4(b). Check box if this Form is being filed late:** [ ]

**4(c). Check box if this is the last time the issuer will be filing this Form:** [ ]

**5. Calculation of registration fee:**

- **(i) Aggregate sale price of securities sold during the fiscal year:** $330229799.00

- **(ii) Aggregate price of securities redeemed or repurchased during the fiscal year:** $636657126.00

- **(iii) Aggregate price of securities redeemed or repurchased during any prior fiscal year:** $276193184.00

- **(iv) Total available redemption credits [add Items 5(ii) and 5(iii)]:** $912850310.00

- **(v) Net sales:** $0.00

- **(vi) Redemption credits available for use in future years:** $-582620511.00

- **(vii) Multiplier for determining registration fee:** 0.0001102

- **(viii) Registration fee due:** $0.00

- **7. Interest due -- if this Form is being filed more than 90 days after the end of the issuer's fiscal year:** $0.00

- **8. Total of the amount of the registration fee due plus any interest due:** $0.00

**Signatures**

**Name and Title:** Linda Wisniewski Assistant Controller, Northwestern Mutual Series Fund, Inc.

**Date:** 03/20/2023

**Signature:** Linda Wisniewski