# Mid Cap Value Portfolio

Mid Cap Value Portfolio is a registered fund series of NORTHWESTERN MUTUAL SERIES FUND INC (series S000000053). Net assets $660.2M as of 2026-03-31.

## Profile

- Series ID: S000000053
- Registrant: NORTHWESTERN MUTUAL SERIES FUND INC
- LEI: 8TRVIGMWHSWZVXP7PI34
- Net assets: $660.2M
- Total assets: $660.7M
- As of: 2026-03-31

## Advisers

- [American Century Investment Management, Inc. (Subadvisor)](https://search.stillhousedata.com/firm/105778)
- [Mason Street Advisors, LLC (Advisor)](https://search.stillhousedata.com/firm/114085)

## Top holdings (127 reported)

_Showing 15 of 127 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [Zimmer Biomet Holdings Inc](https://search.stillhousedata.com/security/98956P102) | — | $15.9M | 241.32% |
| [Baker Hughes Co](https://search.stillhousedata.com/security/05722G100) | — | $14.3M | 215.95% |
| [Henry Schein Inc](https://search.stillhousedata.com/security/806407102) | — | $12.6M | 190.42% |
| [Commerce Bancshares Inc/MO](https://search.stillhousedata.com/security/200525103) | — | $11.9M | 179.83% |
| [Marsh & McLennan Cos Inc](https://search.stillhousedata.com/security/571748102) | — | $11.5M | 173.69% |
| [Evergy Inc](https://search.stillhousedata.com/security/30034W106) | — | $11.4M | 172.49% |
| [Labcorp Holdings Inc](https://search.stillhousedata.com/security/504922105) | — | $11.4M | 172.35% |
| [Xcel Energy Inc](https://search.stillhousedata.com/security/98389B100) | — | $11.3M | 170.54% |
| [Packaging Corp of America](https://search.stillhousedata.com/security/695156109) | — | $10.9M | 165.04% |
| [L3Harris Technologies Inc](https://search.stillhousedata.com/security/502431109) | — | $10.9M | 164.84% |
| [Reinsurance Group of America Inc](https://search.stillhousedata.com/security/759351604) | — | $10.9M | 164.36% |
| Bunzl PLC | — | $10.5M | 158.35% |
| [CSX Corp](https://search.stillhousedata.com/security/126408103) | — | $10.0M | 152.07% |
| [ONE Gas Inc](https://search.stillhousedata.com/security/68235P108) | — | $9.9M | 149.70% |
| [Becton Dickinson & Co](https://search.stillhousedata.com/security/075887109) | — | $9.5M | 144.53% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $660.2M |
| 2025-12-31 | $657.0M |
| 2025-09-30 | $674.1M |
| 2025-06-30 | $644.4M |
| 2025-03-31 | $641.0M |
| 2024-12-31 | $632.4M |
| 2024-09-30 | $677.5M |
| 2024-06-30 | $623.3M |

## More

- [Registrant: NORTHWESTERN MUTUAL SERIES FUND INC](https://search.stillhousedata.com/registrant/742212)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000000053.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

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.