Small Cap Growth Stock 

Fund Overview
Adviser: Mason Street Advisors, LLC
Objective/Focus: Long-term Capital Growth

Invests primarily in stocks of small capitalization and microcap U.S. companies selected for their above-average growth potential. The objective is long-term capital growth.
Asset Class: Small-Cap Stocks
Style: Growth
Investing in small company stocks involves a greater degree of risk than investing in medium or large company stocks.
Fund Facts as of 03/31/13
Fund Inception 04-30-1999
First Available for Variable Annuity 04-30-1999
First Available for Variable Life 04-30-1999
Net Assets $407.97 Million
Top 10 Portfolio Holdings % of Net Assets
SPDR S&P Biotech ETF 3.4%
Valmont Industries, Inc. 1.5%
East West Bancorp, Inc. 1.5%
Bally Technologies, Inc. 1.4%
The KEYW Holding Corp. 1.4%
Synchronoss Technologies, Inc. 1.4%
Hexcel Corp. 1.4%
The Ultimate Software Group, Inc. 1.4%
Tangoe, Inc. 1.3%
LKQ Corp. 1.3%
Total % of Net Assets 16.0%
Download Publicly Disclosed Holdings
Sector Weightings % of Equities
Information Technology 25.6%
Industrials 23.7%
Health Care 14.0%
Financials 10.1%
Consumer Discretionary 9.1%

You should carefully consider the investment objectives, risks, expenses and charges of the investment company before you invest. Your Northwestern Mutual Investment Services Registered Representative can provide you with a contract and fund prospectus that will contain the information noted above, and other important information that you should read carefully before you invest or send money.

Mason Street Advisors, LLC (MSA), a wholly owned company of Northwestern Mutual, is a federally registered investment adviser. MSA is the principal investment adviser for all the Portfolios in the Northwestern Mutual Series Fund (Series Fund). MSA has engaged and oversees sub-advisers who provide day-to-day management for certain of the Series Fund Portfolios. Each sub-adviser may be replaced without the approval of shareholders. Please see the prospectus for more information.

All securities are offered through Northwestern Mutual Investment Services LLC, (NMIS), Subsidiary of Northwestern Mutual and member FINRA and SIPC.

NMFN-S17 (1012)