# MFS Core Bond Fund

MFS Core Bond Fund is a registered fund series of MFS SERIES TRUST XII (series S000076470). Net assets $33.8M as of 2026-04-30.

## Profile

- Series ID: S000076470
- Registrant: MFS SERIES TRUST XII
- LEI: 5493007VGRIDZH3OJY65
- Net assets: $33.8M
- Total assets: $35.8M
- As of: 2026-04-30

## Advisers

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

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [MFS Institutional Money Market Portfolio](https://search.stillhousedata.com/security/55291X109) | — | $1.6M | 481.03% |
| [United States of America](https://search.stillhousedata.com/security/91282CKX8) | — | $1.5M | 431.59% |
| [United States of America](https://search.stillhousedata.com/security/912810TZ1) | — | $929K | 274.75% |
| [United States of America](https://search.stillhousedata.com/security/912810TF5) | — | $914K | 270.48% |
| [United States of America](https://search.stillhousedata.com/security/91282CPB1) | — | $597K | 176.64% |
| [United States of America](https://search.stillhousedata.com/security/91282CKJ9) | — | $554K | 163.84% |
| [United States of America](https://search.stillhousedata.com/security/912810TD0) | — | $535K | 158.40% |
| [United States of America](https://search.stillhousedata.com/security/912810TX6) | — | $460K | 136.08% |
| [United States of America](https://search.stillhousedata.com/security/91282CNN7) | — | $448K | 132.53% |
| [NTT Finance Corp.](https://search.stillhousedata.com/security/62954WAV7) | — | $407K | 120.42% |
| [FNMA or FHLMC](https://search.stillhousedata.com/security/01F032658) | — | $387K | 114.44% |
| [United States of America](https://search.stillhousedata.com/security/912810UE6) | — | $378K | 111.90% |
| [United States of America](https://search.stillhousedata.com/security/912810TL2) | — | $325K | 96.17% |
| [United States of America](https://search.stillhousedata.com/security/912810UQ9) | — | $311K | 91.88% |
| [United States of America](https://search.stillhousedata.com/security/91282CHQ7) | — | $301K | 89.20% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-04-30 | $33.8M |
| 2026-01-31 | $33.9M |
| 2025-10-31 | $33.7M |
| 2025-07-31 | $32.4M |
| 2025-04-30 | $32.0M |
| 2025-01-31 | $30.9M |
| 2024-10-31 | $30.7M |
| 2024-07-31 | $30.3M |

## More

- [Registrant: MFS SERIES TRUST XII](https://search.stillhousedata.com/registrant/1330967)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000076470.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.