# COLUMBIA FUNDS SERIES TRUST — 425

COLUMBIA FUNDS SERIES TRUST of BOSTON, MA filed a 425 with the SEC on 2021-11-24.

## Filing

- Filed: 2021-11-24
- Form: 425
- Accession: 0001193125-21-340419
- Registrant: COLUMBIA FUNDS SERIES TRUST
- CIK: 0001097519
- State of incorporation: DE
- Location: BOSTON, MA

## Documents (1)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | 425 | COLUMBIA FUNDS SERIES TRUST |

## Filing timeline for this registrant (60)

_Showing 12 of 60 filings._

| Filed | Form |
| --- | --- |
| [2026-08-27](https://search.stillhousedata.com/proxy/0001193125-26-369851) | 425 |
| [2026-07-01](https://search.stillhousedata.com/proxy/0001193125-26-291688) | 425 |
| [2026-06-18](https://search.stillhousedata.com/proxy/0001193125-26-275796) | 425 |
| [2023-11-13](https://search.stillhousedata.com/proxy/0001193125-23-275387) | DEFA14A |
| [2023-10-25](https://search.stillhousedata.com/proxy/0001193125-23-262494) | DEF 14A |
| [2023-09-28](https://search.stillhousedata.com/proxy/0001193125-23-244833) | PRE 14A |
| [2021-11-26](https://search.stillhousedata.com/proxy/0001193125-21-341231) | 425 |
| [2021-11-24](https://search.stillhousedata.com/proxy/0001193125-21-340493) | 425 |
| 2021-11-24 | 425 |
| [2021-11-12](https://search.stillhousedata.com/proxy/0001193125-21-327851) | 425 |
| [2021-11-04](https://search.stillhousedata.com/proxy/0001193125-21-319961) | 425 |
| [2021-10-08](https://search.stillhousedata.com/proxy/0001193125-21-295254) | 425 |

## Co-filers (1)

- BMO FUNDS, INC.

## More

- [CIK 1097519 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1097519&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0001193125-21-340419.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

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.