# Aegion Corp — DEFA14A

Aegion Corp of CHESTERFIELD, MO filed a DEFA14A with the SEC on 2021-03-15. Industry: Water, Sewer, Pipeline, Comm & Power Line Construction.

## Filing

- Filed: 2021-03-15
- Form: DEFA14A
- Accession: 0000947871-21-000328
- Registrant: Aegion Corp
- CIK: 0000353020
- Industry (SIC): Water, Sewer, Pipeline, Comm & Power Line Construction (1623)
- State of incorporation: DE
- Location: CHESTERFIELD, MO

## Documents (4)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | DEFA14A | CURRENT REPORT |
| 2 | EX-2.1 | AMENDMENT NO. 1 |
| 3 | EX-99.1 | PRESS RELEASE |
| 4 | GRAPHIC | GRAPHIC |

## Filing timeline for this registrant (60)

_Showing 12 of 60 filings._

| Filed | Form |
| --- | --- |
| [2021-04-28](https://search.stillhousedata.com/proxy/0000947871-21-000464) | DEFA14A |
| [2021-04-19](https://search.stillhousedata.com/proxy/0001140361-21-013264) | DEFR14A |
| [2021-04-14](https://search.stillhousedata.com/proxy/0000947871-21-000425) | DEFA14A |
| [2021-04-14](https://search.stillhousedata.com/proxy/0000947871-21-000424) | DEFA14A |
| [2021-04-01](https://search.stillhousedata.com/proxy/0001140361-21-011156) | DEFM14A |
| [2021-03-22](https://search.stillhousedata.com/proxy/0000947871-21-000356) | DEFA14A |
| [2021-03-15](https://search.stillhousedata.com/proxy/0001140361-21-008427) | PREM14A |
| [2021-03-15](https://search.stillhousedata.com/proxy/0000947871-21-000332) | DEFA14A |
| [2021-03-15](https://search.stillhousedata.com/proxy/0000947871-21-000330) | DEFA14A |
| 2021-03-15 | DEFA14A |
| [2021-03-12](https://search.stillhousedata.com/proxy/0000947871-21-000324) | DEFA14A |
| [2021-03-10](https://search.stillhousedata.com/proxy/0000947871-21-000312) | DEFA14A |

## More

- [CIK 353020 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=353020&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0000947871-21-000328.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.
