# PIONEER SERIES TRUST I

PIONEER SERIES TRUST I (CIK 1257951) is a registered fund company with registration filings on record — latest 485APOS. It has not yet filed a portfolio report (N-PORT).

## Registrant

- CIK: 1257951
- File number: 333-108472

## Registration filings (9)

| Filed | Form | Name as filed |
| --- | --- | --- |
| [2009-10-30](https://search.stillhousedata.com/launch/0001257951-09-000037) | 485APOS | PIONEER SERIES TRUST I |
| [2009-02-19](https://search.stillhousedata.com/launch/0001257951-09-000006) | 485APOS | PIONEER SERIES TRUST I |
| [2005-01-28](https://search.stillhousedata.com/launch/0001016964-05-000030) | 485APOS | PIONEER SERIES TRUST I |
| [2004-08-09](https://search.stillhousedata.com/launch/0001016964-04-000350) | 485APOS | PIONEER SERIES TRUST I |
| [2004-08-06](https://search.stillhousedata.com/launch/0001016964-04-000340) | 485APOS | PIONEER SERIES TRUST I |
| [2004-06-30](https://search.stillhousedata.com/launch/0001016964-04-000263) | 485APOS | PIONEER SERIES TRUST I |
| [2004-02-12](https://search.stillhousedata.com/launch/0001016964-04-000044) | N-1A/A | PIONEER SERIES TRUST I |
| [2003-10-31](https://search.stillhousedata.com/launch/0001016964-03-000233) | N-1A/A | PIONEER SERIES TRUST I |
| [2003-09-03](https://search.stillhousedata.com/launch/0001016964-03-000201) | N-1A | PIONEER SERIES TRUST I |

## More

- [CIK 1257951 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1257951&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/registrant/1257951.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.