# Small Cap Growth Stock Portfolio — new fund registration

NORTHWESTERN MUTUAL SERIES FUND INC registered fund series on Form 485APOS, filed 2018-02-22. Featured series: Small Cap Growth Stock Portfolio.

## Registration

- Registrant / trust: NORTHWESTERN MUTUAL SERIES FUND INC
- CIK: 0000742212
- Form: 485APOS
- Filed: 2018-02-22
- State of incorporation: MD
- Accession: 0001193125-18-053480
- Reported net assets: $732.8M

## Series & classes (27)

_Showing 25 of 27 series/class rows._

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [Small Cap Growth Stock Portfolio](https://search.stillhousedata.com/fund/S000000039) | Small Cap Growth Stock Portfolio | — | — |
| [Large Cap Core Stock Portfolio](https://search.stillhousedata.com/fund/S000000040) | Large Cap Core Stock Portfolio | — | — |
| [Domestic Equity Portfolio](https://search.stillhousedata.com/fund/S000000041) | Domestic Equity Portfolio | — | — |
| [Equity Income Portfolio](https://search.stillhousedata.com/fund/S000000042) | Equity Income Portfolio | — | — |
| [Index 500 Stock Portfolio](https://search.stillhousedata.com/fund/S000000043) | Index 500 Stock Portfolio | — | — |
| [Asset Allocation Portfolio](https://search.stillhousedata.com/fund/S000000044) | Asset Allocation Portfolio | — | — |
| [Balanced Portfolio](https://search.stillhousedata.com/fund/S000000045) | Balanced Portfolio | — | — |
| [High Yield Bond Portfolio](https://search.stillhousedata.com/fund/S000000046) | High Yield Bond Portfolio | — | — |
| [Select Bond Portfolio](https://search.stillhousedata.com/fund/S000000047) | Select Bond Portfolio | — | — |
| [Government Money Market Portfolio](https://search.stillhousedata.com/fund/S000000048) | Government Money Market Portfolio | — | — |
| [Small Cap Value Portfolio](https://search.stillhousedata.com/fund/S000000049) | Small Cap Value Portfolio | — | — |
| [Mid Cap Growth Stock Portfolio](https://search.stillhousedata.com/fund/S000000050) | Mid Cap Growth Stock Portfolio | — | — |
| [International Growth Portfolio](https://search.stillhousedata.com/fund/S000000051) | International Growth Portfolio | — | — |
| [International Equity Portfolio](https://search.stillhousedata.com/fund/S000000052) | International Equity Portfolio | — | — |
| [Mid Cap Value Portfolio](https://search.stillhousedata.com/fund/S000000053) | Mid Cap Value Portfolio | — | — |
| [Index 400 Stock Portfolio](https://search.stillhousedata.com/fund/S000000054) | Index 400 Stock Portfolio | — | — |
| [Focused Appreciation Portfolio](https://search.stillhousedata.com/fund/S000000055) | Focused Appreciation Portfolio | — | — |
| [Growth Stock Portfolio](https://search.stillhousedata.com/fund/S000000056) | Growth Stock Portfolio | — | — |
| [Large Company Value Portfolio](https://search.stillhousedata.com/fund/S000018227) | Large Company Value Portfolio | — | — |
| [Inflation Protection Portfolio](https://search.stillhousedata.com/fund/S000018228) | Inflation Protection Portfolio | — | — |
| [Large Cap Blend Portfolio](https://search.stillhousedata.com/fund/S000018229) | Large Cap Blend Portfolio | — | — |
| [Research International Core Portfolio](https://search.stillhousedata.com/fund/S000018230) | Research International Core Portfolio | — | — |
| [Index 600 Stock Portfolio](https://search.stillhousedata.com/fund/S000018231) | Index 600 Stock Portfolio | — | — |
| [Emerging Markets Equity Portfolio](https://search.stillhousedata.com/fund/S000018232) | Emerging Markets Equity Portfolio | — | — |
| [Short-Term Bond Portfolio](https://search.stillhousedata.com/fund/S000018233) | Short-Term Bond Portfolio | — | — |

## Fees (from the effective prospectus)

- 12b-1 fee: 0.00%
- Gross expense ratio: 0.56%
- Management fee: 0.53%
- Net expense ratio: 0.57%
- Other expenses: 0.03%

## Investment objective

The investment objective of the Portfolio is long-term growth of capital.

## Advisers

- [Mason Street Advisors, LLC (Advisor)](https://search.stillhousedata.com/firm/114085)
- [Wellington Management Company LLP (Subadvisor)](https://search.stillhousedata.com/firm/106595)

## Other filings by this registrant (15)

- [485APOS — 2026-02-19](https://search.stillhousedata.com/launch/0001193125-26-058781)
- [485APOS — 2025-02-21](https://search.stillhousedata.com/launch/0001193125-25-031752)
- [485APOS — 2025-02-13 (3 new series)](https://search.stillhousedata.com/launch/0001193125-25-025851)
- [485APOS — 2024-02-14](https://search.stillhousedata.com/launch/0001193125-24-036555)
- [485APOS — 2023-02-14](https://search.stillhousedata.com/launch/0001193125-23-038111)
- [485APOS — 2022-02-16](https://search.stillhousedata.com/launch/0001193125-22-044225)
- [485APOS — 2021-02-16](https://search.stillhousedata.com/launch/0001193125-21-044722)
- [485APOS — 2020-02-14](https://search.stillhousedata.com/launch/0001193125-20-038099)
- [485APOS — 2017-02-23](https://search.stillhousedata.com/launch/0001193125-17-053636)
- [485APOS — 2016-02-19](https://search.stillhousedata.com/launch/0001193125-16-469981)
- [485APOS — 2015-02-20](https://search.stillhousedata.com/launch/0001193125-15-056321)
- [485APOS — 2014-02-21](https://search.stillhousedata.com/launch/0001193125-14-062793)

## More

- [Registrant profile: NORTHWESTERN MUTUAL SERIES FUND INC](https://search.stillhousedata.com/registrant/742212)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0001193125-18-053480.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.