# MFS Mid Cap Growth Series

MFS Mid Cap Growth Series is a registered fund series of MFS VARIABLE INSURANCE TRUST (series S000002678). Net assets $319.4M as of 2026-03-31.

## Profile

- Series ID: S000002678
- Registrant: MFS VARIABLE INSURANCE TRUST
- LEI: DQS0BFT7TBCF2MYV2M94
- Net assets: $319.4M
- Total assets: $319.6M
- As of: 2026-03-31

## Advisers

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

## Top holdings (106 reported)

_Showing 15 of 106 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [Howmet Aerospace Inc](https://search.stillhousedata.com/security/443201108) | — | $13.2M | 414.72% |
| [Monolithic Power Systems Inc](https://search.stillhousedata.com/security/609839105) | — | $10.6M | 330.60% |
| [Quanta Services Inc](https://search.stillhousedata.com/security/74762E102) | — | $9.2M | 289.01% |
| [Take-Two Interactive Software Inc](https://search.stillhousedata.com/security/874054109) | — | $9.2M | 288.95% |
| [Cheniere Energy Inc](https://search.stillhousedata.com/security/16411R208) | — | $8.2M | 256.89% |
| [Live Nation Entertainment Inc](https://search.stillhousedata.com/security/538034109) | — | $8.2M | 255.83% |
| [Masimo Corp](https://search.stillhousedata.com/security/574795100) | — | $7.5M | 233.71% |
| [Ascendis Pharma A/S](https://search.stillhousedata.com/security/04351P101) | — | $7.2M | 226.52% |
| [TKO Group Holdings Inc](https://search.stillhousedata.com/security/87256C101) | — | $7.2M | 226.04% |
| [Natera Inc](https://search.stillhousedata.com/security/632307104) | — | $7.1M | 222.23% |
| [Burlington Stores Inc](https://search.stillhousedata.com/security/122017106) | — | $6.7M | 211.23% |
| [LPL Financial Holdings Inc](https://search.stillhousedata.com/security/50212V100) | — | $6.7M | 210.94% |
| [Vistra Corp](https://search.stillhousedata.com/security/92840M102) | — | $6.1M | 191.94% |
| [Nasdaq Inc](https://search.stillhousedata.com/security/631103108) | — | $5.6M | 174.76% |
| [Cloudflare Inc](https://search.stillhousedata.com/security/18915M107) | — | $5.3M | 165.50% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $319.4M |
| 2025-12-31 | $341.5M |
| 2025-09-30 | $357.9M |
| 2025-06-30 | $370.7M |
| 2025-03-31 | $326.2M |
| 2024-12-31 | $356.3M |
| 2024-09-30 | $359.9M |
| 2024-06-30 | $352.1M |

## More

- [Registrant: MFS VARIABLE INSURANCE TRUST](https://search.stillhousedata.com/registrant/918571)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000002678.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.