# MFS SERIES TRUST XIII

MFS SERIES TRUST XIII (CIK 356349) is an SEC-registered fund company with 4 reporting fund series and $8.4B in net assets as of 2026-05-31.

## Registrant

- CIK: 356349
- File number: 811-03327
- LEI: 5493000SCRZM3WD72S74
- Address: 111 HUNTINGTON AVENUE, BOSTON, US-MA, 02199
- Phone: 617-954-5000
- Net assets: $8.4B
- Total assets: $8.6B
- Fund series: 4
- Latest report: 2026-05-31

## Fund series (4)

| Series | Net assets |
| --- | --- |
| [MFS New Discovery Value Fund](https://search.stillhousedata.com/fund/S000032712) | $2.5B |
| [MFS Global Real Estate Fund](https://search.stillhousedata.com/fund/S000024971) | $2.1B |
| [MFS Government Securities Fund](https://search.stillhousedata.com/fund/S000000693) | $1.9B |
| [MFS Diversified Income Fund](https://search.stillhousedata.com/fund/S000012219) | $1.8B |

## Largest reported holdings (across all series)

| Holding | Value |
| --- | --- |
| [JP Morgan US Government Money Market Fund](https://search.stillhousedata.com/security/4812C2270) | $58.5M |
| [Riot Platforms Inc](https://search.stillhousedata.com/security/767292105) | $48.5M |
| [Element Solutions Inc](https://search.stillhousedata.com/security/28618M106) | $36.6M |
| [Plains GP Holdings LP](https://search.stillhousedata.com/security/72651A207) | $31.7M |
| [Cathay General Bancorp](https://search.stillhousedata.com/security/149150104) | $31.1M |
| [Prosperity Bancshares Inc](https://search.stillhousedata.com/security/743606105) | $31.1M |
| [Columbia Banking System Inc](https://search.stillhousedata.com/security/197236102) | $30.3M |
| [First Interstate BancSystem Inc](https://search.stillhousedata.com/security/32055Y201) | $29.9M |
| [First Hawaiian Inc](https://search.stillhousedata.com/security/32051X108) | $29.5M |
| [Hancock Whitney Corp](https://search.stillhousedata.com/security/410120109) | $28.4M |
| [Popular Inc](https://search.stillhousedata.com/security/733174700) | $27.9M |
| [Portland General Electric Co](https://search.stillhousedata.com/security/736508847) | $27.4M |
| [Ligand Pharmaceuticals Inc](https://search.stillhousedata.com/security/53220K504) | $26.1M |
| [United Community Banks Inc/GA](https://search.stillhousedata.com/security/90984P303) | $25.7M |
| [EchoStar Corp](https://search.stillhousedata.com/security/278768106) | $25.6M |

## More

- [CIK 356349 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=356349&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/registrant/356349.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.