# S1 CORP /DE/ — 425

S1 CORP /DE/ of NORCROSS, GA filed a 425 with the SEC on 2012-02-09. Industry: Services-Computer Programming, Data Processing, Etc..

## Filing

- Filed: 2012-02-09
- Form: 425
- Accession: 0001193125-12-047372
- Registrant: S1 CORP /DE/
- CIK: 0001063254
- Industry (SIC): Services-Computer Programming, Data Processing, Etc. (7370)
- State of incorporation: DE
- Location: NORCROSS, GA

## Documents (2)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | 425 | 425 |
| 2 | GRAPHIC | GRAPHIC |

## Filing timeline for this registrant (60)

_Showing 12 of 60 filings._

| Filed | Form |
| --- | --- |
| [2012-02-16](https://search.stillhousedata.com/proxy/0001193125-12-065402) | SC TO-T/A |
| [2012-02-16](https://search.stillhousedata.com/proxy/0001193125-12-065387) | 425 |
| [2012-02-14](https://search.stillhousedata.com/proxy/0001193125-12-060687) | SC TO-T/A |
| [2012-02-14](https://search.stillhousedata.com/proxy/0001193125-12-060626) | 425 |
| [2012-02-14](https://search.stillhousedata.com/proxy/0001193125-12-060578) | 425 |
| [2012-02-09](https://search.stillhousedata.com/proxy/0001193125-12-047378) | SC TO-T/A |
| 2012-02-09 | 425 |
| [2012-02-06](https://search.stillhousedata.com/proxy/0001193125-12-040136) | SC 14D9/A |
| [2012-02-03](https://search.stillhousedata.com/proxy/0001193125-12-038558) | SC TO-T/A |
| [2012-02-03](https://search.stillhousedata.com/proxy/0001193125-12-038549) | 425 |
| [2012-01-24](https://search.stillhousedata.com/proxy/0001193125-12-021159) | SC 14D9/A |
| [2012-01-24](https://search.stillhousedata.com/proxy/0001193125-12-021083) | SC TO-T/A |

## Co-filers (1)

- ACI WORLDWIDE, INC.

## More

- [CIK 1063254 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1063254&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0001193125-12-047372.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.