# MFS Lifetime 2015 Fund — new fund registration

MFS Series Trust XII registered 5 new fund series on Form 485APOS, filed 2012-08-15. Featured series: MFS Lifetime 2015 Fund.

## Registration

- Registrant / trust: MFS Series Trust XII
- CIK: 0001330967
- Form: 485APOS
- Filed: 2012-08-15
- State of incorporation: MA
- Accession: 0001104659-12-058080

## Series & classes (40)

_Showing 25 of 40 series/class rows._

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [MFS Lifetime 2015 Fund](https://search.stillhousedata.com/fund/S000038772) | A | — | Yes |
| [MFS Lifetime 2015 Fund](https://search.stillhousedata.com/fund/S000038772) | B | — | Yes |
| [MFS Lifetime 2015 Fund](https://search.stillhousedata.com/fund/S000038772) | C | — | Yes |
| [MFS Lifetime 2015 Fund](https://search.stillhousedata.com/fund/S000038772) | I | — | Yes |
| [MFS Lifetime 2015 Fund](https://search.stillhousedata.com/fund/S000038772) | R1 | — | Yes |
| [MFS Lifetime 2015 Fund](https://search.stillhousedata.com/fund/S000038772) | R2 | — | Yes |
| [MFS Lifetime 2015 Fund](https://search.stillhousedata.com/fund/S000038772) | R3 | — | Yes |
| [MFS Lifetime 2015 Fund](https://search.stillhousedata.com/fund/S000038772) | R4 | — | Yes |
| [MFS Lifetime 2025 Fund](https://search.stillhousedata.com/fund/S000038773) | B | LTTBX | Yes |
| [MFS Lifetime 2025 Fund](https://search.stillhousedata.com/fund/S000038773) | C | LTTCX | Yes |
| [MFS Lifetime 2025 Fund](https://search.stillhousedata.com/fund/S000038773) | I | LTTIX | Yes |
| [MFS Lifetime 2025 Fund](https://search.stillhousedata.com/fund/S000038773) | R1 | LTTRX | Yes |
| [MFS Lifetime 2025 Fund](https://search.stillhousedata.com/fund/S000038773) | R2 | LTTSX | Yes |
| [MFS Lifetime 2025 Fund](https://search.stillhousedata.com/fund/S000038773) | R3 | LTTTX | Yes |
| [MFS Lifetime 2025 Fund](https://search.stillhousedata.com/fund/S000038773) | R4 | LTTUX | Yes |
| [MFS Lifetime 2025 Fund](https://search.stillhousedata.com/fund/S000038773) | A | LTTAX | Yes |
| [MFS Lifetime 2035 Fund](https://search.stillhousedata.com/fund/S000038774) | A | LFEAX | Yes |
| [MFS Lifetime 2035 Fund](https://search.stillhousedata.com/fund/S000038774) | B | LFEBX | Yes |
| [MFS Lifetime 2035 Fund](https://search.stillhousedata.com/fund/S000038774) | C | LFECX | Yes |
| [MFS Lifetime 2035 Fund](https://search.stillhousedata.com/fund/S000038774) | I | LFEDX | Yes |
| [MFS Lifetime 2035 Fund](https://search.stillhousedata.com/fund/S000038774) | R1 | LFERX | Yes |
| [MFS Lifetime 2035 Fund](https://search.stillhousedata.com/fund/S000038774) | R2 | LFESX | Yes |
| [MFS Lifetime 2035 Fund](https://search.stillhousedata.com/fund/S000038774) | R3 | LFETX | Yes |
| [MFS Lifetime 2035 Fund](https://search.stillhousedata.com/fund/S000038774) | R4 | LFEUX | Yes |
| [MFS Lifetime 2045 Fund](https://search.stillhousedata.com/fund/S000038775) | A | LTMAX | Yes |

## Fees (from the effective prospectus)

- 12b-1 fee: 0.25%
- Gross expense ratio: 1.24%
- Management fee: 0.00%
- Net expense ratio: 0.84%
- Other expenses: 0.40%

## Investment objective

The funds investment objective is to seek a high level of total return consistent with its asset allocation until the approximate retirement year in the funds name; thereafter, the fund will seek total return through a combination of current income and capital appreciation. The asset allocation of the fund will change over time.

## Other filings by this registrant (15)

- [485APOS — 2026-03-05 (8 new series)](https://search.stillhousedata.com/launch/0000912938-26-000307)
- [485APOS — 2023-06-28](https://search.stillhousedata.com/launch/0001104659-23-075640)
- [485APOS — 2022-03-22 (8 new series)](https://search.stillhousedata.com/launch/0001104659-22-036425)
- [485APOS — 2021-06-09 (8 new series)](https://search.stillhousedata.com/launch/0001104659-21-078681)
- [485APOS — 2016-10-05](https://search.stillhousedata.com/launch/0001104659-16-148792)
- [485APOS — 2016-07-29 (9 new series)](https://search.stillhousedata.com/launch/0001104659-16-135207)
- [485APOS — 2016-06-27](https://search.stillhousedata.com/launch/0001104659-16-129582)
- [485APOS — 2014-06-26](https://search.stillhousedata.com/launch/0001104659-14-048531)
- [485APOS — 2012-12-27](https://search.stillhousedata.com/launch/0001104659-12-086299)
- [485APOS — 2011-12-29](https://search.stillhousedata.com/launch/0001104659-11-071525)
- [485APOS — 2010-12-29](https://search.stillhousedata.com/launch/0001104659-10-064572)
- [485APOS — 2010-06-30 (8 new series)](https://search.stillhousedata.com/launch/0001193125-10-151098)

## More

- [Registrant profile: MFS Series Trust XII](https://search.stillhousedata.com/registrant/1330967)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0001104659-12-058080.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.