# MFS New Discovery Fund

MFS New Discovery Fund is a registered fund series of MFS SERIES TRUST I (series S000000765). Net assets $2.1B as of 2026-05-31.

## Profile

- Series ID: S000000765
- Registrant: MFS SERIES TRUST I
- LEI: ZVEMRLDGMDO1D1VDSU87
- Net assets: $2.1B
- Total assets: $2.2B
- As of: 2026-05-31

## Advisers

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

## Top holdings (119 reported)

_Showing 15 of 119 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [JP Morgan US Government Money Market Fund](https://search.stillhousedata.com/security/4812C2270) | — | $90.2M | 421.14% |
| [MFS Institutional Money Market Portfolio](https://search.stillhousedata.com/security/55291X109) | — | $85.4M | 398.66% |
| [Advanced Energy Industries Inc](https://search.stillhousedata.com/security/007973100) | — | $50.2M | 234.33% |
| [Littelfuse Inc](https://search.stillhousedata.com/security/537008104) | — | $46.9M | 219.01% |
| [TTM Technologies Inc](https://search.stillhousedata.com/security/87305R109) | — | $42.6M | 199.08% |
| [Element Solutions Inc](https://search.stillhousedata.com/security/28618M106) | — | $41.3M | 192.84% |
| [Ligand Pharmaceuticals Inc](https://search.stillhousedata.com/security/53220K504) | — | $40.8M | 190.51% |
| [CACI International Inc](https://search.stillhousedata.com/security/127190304) | — | $40.1M | 187.27% |
| [Leonardo DRS Inc](https://search.stillhousedata.com/security/52661A108) | — | $37.8M | 176.42% |
| [Bloom Energy Corp](https://search.stillhousedata.com/security/093712107) | — | $35.8M | 167.33% |
| [Bio-Techne Corp](https://search.stillhousedata.com/security/09073M104) | — | $35.0M | 163.58% |
| [Charles River Laboratories International Inc](https://search.stillhousedata.com/security/159864107) | — | $33.5M | 156.33% |
| [Chefs' Warehouse Inc/The](https://search.stillhousedata.com/security/163086101) | — | $32.7M | 152.77% |
| [FormFactor Inc](https://search.stillhousedata.com/security/346375108) | — | $32.2M | 150.39% |
| [QXO Inc](https://search.stillhousedata.com/security/82846H405) | — | $30.4M | 142.15% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-05-31 | $2.1B |
| 2026-02-28 | $2.1B |
| 2025-11-30 | $2.1B |
| 2025-08-31 | $2.1B |
| 2025-05-31 | $2.0B |
| 2025-02-28 | $2.1B |
| 2024-11-30 | $2.4B |
| 2024-08-31 | $2.3B |

## More

- [Registrant: MFS SERIES TRUST I](https://search.stillhousedata.com/registrant/798244)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000000765.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.