Recent filings
The trust's recent EDGAR filings — prospectus updates, shareholder reports, proxy records. Trust-level, so some cover other funds in MFS SERIES TRUST I.
| Filed | Filing | Form | |
|---|---|---|---|
| 2026-04-28 | Semi-annual shareholder report report | N-CSRS | EDGAR → |
| 2026-04-20 | Summary prospectus prospectus | 497K | EDGAR → |
| 2026-04-20 | Prospectus supplement prospectus | 497 | EDGAR → |
| 2026-04-20 | Prospectus supplement prospectus | 497 | EDGAR → |
| 2026-04-20 | Summary prospectus prospectus | 497K | EDGAR → |
| 2025-12-29 | Summary prospectus prospectus | 497K | EDGAR → |
| 2025-12-29 | Summary prospectus prospectus | 497K | EDGAR → |
| 2025-12-29 | Summary prospectus prospectus | 497K | EDGAR → |
| 2025-12-29 | Updated prospectus prospectus | 485BPOS | EDGAR → |
| 2025-12-29 | Summary prospectus prospectus | 497K | EDGAR → |
| 2025-12-29 | Summary prospectus prospectus | 497K | EDGAR → |
| 2025-12-29 | Summary prospectus prospectus | 497K | EDGAR → |
| 2025-12-29 | Summary prospectus prospectus | 497K | EDGAR → |
| 2025-12-29 | Summary prospectus prospectus | 497K | EDGAR → |
| 2025-12-16 | Summary prospectus prospectus | 497K | EDGAR → |
| 2025-12-16 | Summary prospectus prospectus | 497K | EDGAR → |
| 2025-11-14 | Annual report (N-CEN) report | N-CEN | EDGAR → |
| 2025-10-28 | Annual shareholder report report | N-CSR | EDGAR → |
| 2025-10-08 | Draft prospectus amendment prospectus | 485APOS | EDGAR → |
| 2025-08-28 | Proxy voting record proxy | N-PX | EDGAR → |
| 2025-08-28 | Proxy voting record proxy | N-PX | EDGAR → |
| 2025-07-28 | Summary prospectus prospectus | 497K | EDGAR → |
| 2025-07-28 | Prospectus supplement prospectus | 497 | EDGAR → |
| 2025-04-25 | Semi-annual shareholder report report | N-CSRS | EDGAR → |
| 2024-12-26 | Updated prospectus prospectus | 485BPOS | EDGAR → |
| 2024-12-26 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-12-26 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-12-26 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-12-26 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-12-26 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-12-26 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-12-26 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-12-26 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-11-13 | Annual report (N-CEN) report | N-CEN | EDGAR → |
| 2024-11-01 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-11-01 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-11-01 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-11-01 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-11-01 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-11-01 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-11-01 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-11-01 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-10-28 | Annual shareholder report report | N-CSR | EDGAR → |
| 2024-09-12 | Prospectus supplement prospectus | 497 | EDGAR → |
| 2024-09-12 | Summary prospectus prospectus | 497K | EDGAR → |
| 2024-08-27 | Proxy voting record proxy | N-PX | EDGAR → |
| 2024-08-27 | Proxy voting record proxy | N-PX | EDGAR → |
| 2024-04-25 | Semi-annual shareholder report report | N-CSRS | EDGAR → |
| 2023-12-28 | Updated prospectus prospectus | 485BPOS | EDGAR → |
| 2023-12-28 | Summary prospectus prospectus | 497K | EDGAR → |
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