# MFS Mid Cap Value Portfolio

MFS Mid Cap Value Portfolio is a registered fund series of MFS VARIABLE INSURANCE TRUST III (series S000018843). Net assets $591.5M as of 2026-03-31.

## Profile

- Series ID: S000018843
- Registrant: MFS VARIABLE INSURANCE TRUST III
- LEI: 549300DTS6NIQDMEIL78
- Net assets: $591.5M
- Total assets: $592.8M
- As of: 2026-03-31

## Advisers

- [Massachusetts Financial Services Company (Advisor)](https://search.stillhousedata.com/firm/110045)

## Top holdings (155 reported)

_Showing 15 of 155 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [MFS Institutional Money Market Portfolio](https://search.stillhousedata.com/security/55291X109) | — | $11.8M | 198.95% |
| Flex Ltd | — | $8.4M | 142.30% |
| [Valero Energy Corp](https://search.stillhousedata.com/security/91913Y100) | — | $8.3M | 139.73% |
| [Permian Resources Corp](https://search.stillhousedata.com/security/71424F105) | — | $7.4M | 124.28% |
| [PG&E Corp](https://search.stillhousedata.com/security/69331C108) | — | $7.3M | 123.53% |
| [Corning Inc](https://search.stillhousedata.com/security/219350105) | — | $7.3M | 122.88% |
| [Hartford Insurance Group Inc/The](https://search.stillhousedata.com/security/416515104) | — | $7.2M | 121.08% |
| [Westinghouse Air Brake Technologies Corp](https://search.stillhousedata.com/security/929740108) | — | $7.0M | 119.16% |
| [Targa Resources Corp](https://search.stillhousedata.com/security/87612G101) | — | $6.9M | 116.22% |
| [Northern Trust Corp](https://search.stillhousedata.com/security/665859104) | — | $6.4M | 108.38% |
| [Diamondback Energy Inc](https://search.stillhousedata.com/security/25278X109) | — | $6.2M | 104.01% |
| [L3Harris Technologies Inc](https://search.stillhousedata.com/security/502431109) | — | $6.1M | 103.52% |
| [CMS Energy Corp](https://search.stillhousedata.com/security/125896100) | — | $6.1M | 102.34% |
| [US Foods Holding Corp](https://search.stillhousedata.com/security/912008109) | — | $6.1M | 102.33% |
| [Alliant Energy Corp](https://search.stillhousedata.com/security/018802108) | — | $6.0M | 102.19% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $591.5M |
| 2025-12-31 | $593.4M |
| 2025-09-30 | $593.8M |
| 2025-06-30 | $574.8M |
| 2025-03-31 | $544.3M |
| 2024-12-31 | $547.2M |
| 2024-09-30 | $558.4M |
| 2024-06-30 | $509.0M |

## More

- [Registrant: MFS VARIABLE INSURANCE TRUST III](https://search.stillhousedata.com/registrant/1065698)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000018843.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.