Mid Cap Growth Stock Portfolio
NORTHWESTERN MUTUAL SERIES FUND INC

Allocation breakdown

As of March 31, 2026 · N-PORT

By asset class

By country

By sector

By industry (SIC code)

As of March 31, 2026 · N-PORT

How we map holdings to the sectors above: each holding's issuer carries a U.S. SIC industry code in its EDGAR filer record, and each SIC code rolls up to a sector. Expand a sector to see its industries, and click a SIC code to list this fund's positions in that industry. Bonds and foreign or private issuers with no SEC filer record fall into Unclassified.

Hotels & Motels 3.99%
Services-Business Services, NEC 2.83%
Retail-Auto Dealers & Gasoline Stations 1.76%
Retail-Department Stores 1.59%
Search, Detection, Navigation, Guidance, Aeronautical Sys 1.49%
Instruments For Meas & Testing of Electricity & Elec Signals 1.48%
Services-Amusement & Recreation Services 1.39%
Retail-Eating Places 1.30%
Services-Miscellaneous Equipment Rental & Leasing 1.24%
Retail-Retail Stores, NEC 1.06%
Industrial Instruments For Measurement, Display, and Control 0.96%
Retail-Auto & Home Supply Stores 0.93%
Services-To Dwellings & Other Buildings 0.83%
Apparel & Other Finishd Prods of Fabrics & Similar Matl 0.56%
Auto Controls For Regulating Residential & Comml Environments 0.55%
Motor Vehicles & Passenger Car Bodies 0.51%
Motor Homes 0.48%
Retail-Catalog & Mail-Order Houses 0.40%
Services-Membership Sports & Recreation Clubs 0.40%
Services-Prepackaged Software 11.81%
Electronic Components, NEC 3.38%
Semiconductors & Related Devices 2.63%
Telephone & Telegraph Apparatus 1.92%
Laboratory Analytical Instruments 0.95%
Services-Computer Processing & Data Preparation 0.86%
Computer Peripheral Equipment, NEC 0.58%
Services-Computer Programming, Data Processing, Etc. 0.53%
Electrical Work 5.49%
Water Transportation 3.13%
Wholesale-Drugs, Proprietaries & Druggists' Sundries 2.51%
Aircraft Engines & Engine Parts 1.28%
Pumps & Pumping Equipment 1.12%
Wholesale-Groceries, General Line 1.00%
Engines & Turbines 0.96%
Ordnance & Accessories, (No Vehicles/Guided Missiles) 0.85%
Oil & Gas Field Machinery & Equipment 0.67%
Guided Missiles & Space Vehicles & Parts 0.63%
Services-Commercial Physical & Biological Research 0.58%
General Industrial Machinery & Equipment 0.55%
General Industrial Machinery & Equipment, NEC 0.53%
Services-Child Day Care Services 0.37%
Transportation Services 0.35%
Pharmaceutical Preparations 7.25%
Services-Medical Laboratories 1.77%
Biological Products, (No Diagnostic Substances) 1.40%
Surgical & Medical Instruments & Apparatus 1.38%
In Vitro & In Vivo Diagnostic Substances 1.19%
Security Brokers, Dealers & Flotation Companies 1.93%
Security & Commodity Brokers, Dealers, Exchanges & Services 1.03%
Mortgage Bankers & Loan Correspondents 0.61%
State Commercial Banks 0.60%
Insurance Agents, Brokers & Service 0.47%
Loan Brokers 0.30%
Investment Advice 0.19%
Personal Credit Institutions 0.15%
Rolling Drawing & Extruding of Nonferrous Metals 3.49%
Fabricated Rubber Products, NEC 0.54%
Concrete Products, Except Block & Brick 0.46%
Natural Gas Distribution 1.77%
Electric Services 1.37%
Natural Gas Transmission 1.34%
Real Estate 1.12%
Real Estate Investment Trusts 0.48%
Crude Petroleum & Natural Gas 0.93%
Unclassified 3.81%

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