# MARTEK BIOSCIENCES CORP — SC 14D9/A

MARTEK BIOSCIENCES CORP of COLUMBIA, MD filed a SC 14D9/A with the SEC on 2011-01-31. Industry: Biological Products, (No Diagnostic Substances).

## Filing

- Filed: 2011-01-31
- Form: SC 14D9/A
- Accession: 0001104659-11-003955
- Registrant: MARTEK BIOSCIENCES CORP
- CIK: 0000892025
- Industry (SIC): Biological Products, (No Diagnostic Substances) (2836)
- State of incorporation: DE
- Location: COLUMBIA, MD

## Documents (1)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | SC 14D9/A | SC 14D9 |

## Filing timeline for this registrant (23)

_Showing 12 of 23 filings._

| Filed | Form |
| --- | --- |
| [2011-02-22](https://search.stillhousedata.com/proxy/0001104659-11-008932) | SC 14D9/A |
| [2011-02-07](https://search.stillhousedata.com/proxy/0001104659-11-005241) | SC 14D9/A |
| [2011-02-01](https://search.stillhousedata.com/proxy/0001104659-11-004177) | SC 14D9/A |
| 2011-01-31 | SC 14D9/A |
| [2011-01-21](https://search.stillhousedata.com/proxy/0001104659-11-002389) | SC 14D9/A |
| [2011-01-13](https://search.stillhousedata.com/proxy/0001047469-11-000127) | SC 14D9 |
| [2010-12-21](https://search.stillhousedata.com/proxy/0001104659-10-063745) | SC14D9C |
| [2010-02-03](https://search.stillhousedata.com/proxy/0001047469-10-000509) | DEF 14A |
| [2009-02-19](https://search.stillhousedata.com/proxy/0000950133-09-000392) | DEF 14A |
| [2008-02-12](https://search.stillhousedata.com/proxy/0000950133-08-000467) | DEF 14A |
| [2007-02-12](https://search.stillhousedata.com/proxy/0000950133-07-000442) | DEF 14A |
| [2007-01-29](https://search.stillhousedata.com/proxy/0000950133-07-000255) | PRE 14A |

## More

- [CIK 892025 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=892025&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0001104659-11-003955.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.