# EDGAR Filing Document

**Accession Number:** 0000742212
**File Stem:** 0001193125-25-154075
**Filing Date:** 2025-7
**Character Count:** 2884
**Document Hash:** 7fb59447fa7d5a7752f89c6fd0a2525c
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-154075.hdr.sgml**: 20250701

**ACCESSION NUMBER**: 0001193125-25-154075

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250701

**DATE AS OF CHANGE**: 20250701

**EFFECTIVENESS DATE**: 20250701

**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:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 002-89971
- **FILM NUMBER:** 251097078

**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

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

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

**Northwestern Mutual Series Fund, Inc.** <br>**Large Company Value Portfolio**

Supplement Dated July 1, 2025 to the <br>Summary Prospectus for the Large Company Value Portfolio Dated May 1, 2025

The following information supplements the Summary Prospectus for the Large Company Value Portfolio of Northwestern Mutual Series Fund, Inc. (the "Fund") dated May 1, 2025 (the "Summary Prospectus"). You should read this Supplement together with the Summary Prospectus.

***<u>Portfolio Managers Update – Large Company Value Portfolio</u>***

Effective July 1, 2025, Kevin Toney joined Brian Woglom, Philip Sundell, and Adam Krenn as a co-portfolio manager for the Large Company Value Portfolio. Accordingly, the "Portfolio Managers" information set forth under the "Summary – PORTFOLIO MANAGEMENT" section is hereby deleted and replaced with the following:

"**Portfolio Managers**: *Brian Woglom*, CFA, Vice President and Senior Portfolio Manager, joined American Century in 2005 and has served as a manager for the Portfolio since 2016.

*Philip Sundell*, CFA, Vice President and Portfolio Manager, joined American Century in 1997 and began managing the Portfolio in April 2019.

*Adam Krenn*, CFA, Vice President and Senior Investment Analyst, joined American Century in 2011 and began managing the Portfolio in February 2022.

*Kevin Toney*, CFA, Chief Investment Officer – Global Value Equity, Senior Vice President and Senior Portfolio Manager, joined American Century in 1999 and has served as manager for the Portfolio since 2025."

**Please retain this Supplement for future reference.**

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