# OSI PHARMACEUTICALS INC — SC 14D9/A

OSI PHARMACEUTICALS INC of MELVILLE, NY filed a SC 14D9/A with the SEC on 2010-04-06. Industry: In Vitro & In Vivo Diagnostic Substances.

## Filing

- Filed: 2010-04-06
- Form: SC 14D9/A
- Accession: 0001341004-10-000640
- Registrant: OSI PHARMACEUTICALS INC
- CIK: 0000729922
- Industry (SIC): In Vitro & In Vivo Diagnostic Substances (2835)
- State of incorporation: DE
- Location: MELVILLE, NY

## Documents (17)

_Showing 15 of 17 documents._

| Seq | Type | Description |
| --- | --- | --- |
| 1 | SC 14D9/A | SC 14D9/A |
| 2 | EX-99.(A)(9) | EXHIBIT (A)(9) -- EMPLOYEE Q&A REGARDING OSI CHANGE IN CONTROL SEVERANCE PLA |
| 3 | EX-99.(A)(10) | EXHIBIT (A)(10) -- EMPLOYEE Q&A REGARDING PROSIDION LIMITED AND OSI PHARMACE |
| 4 | EX-99.(A)(11) | EXHIBIT (A)(11) -- LETTER TO COMPANY?S EMPLOYEES DATED APRIL 6, 2010 REGARDING T |
| 5 | EX-99.(A)(12) | EXHIBIT (A)(12) -- EMPLOYEE SLIDE PRESENTATION REGARDING THE CHANGE IN CONTROL S |
| 6 | GRAPHIC | ex\_a121.jpg |
| 7 | GRAPHIC | ex\_a122.jpg |
| 8 | GRAPHIC | ex\_a123.jpg |
| 9 | GRAPHIC | ex\_a124.jpg |
| 10 | GRAPHIC | ex\_a125.jpg |
| 11 | GRAPHIC | ex\_a126.jpg |
| 12 | GRAPHIC | ex\_a127.jpg |
| 13 | GRAPHIC | ex\_a128.jpg |
| 14 | GRAPHIC | ex\_a129.jpg |
| 15 | GRAPHIC | ex\_a1210.jpg |

## Filing timeline for this registrant (36)

_Showing 12 of 36 filings._

| Filed | Form |
| --- | --- |
| [2010-08-05](https://search.stillhousedata.com/proxy/0001341004-10-001341) | SC TO-I/A |
| [2010-07-13](https://search.stillhousedata.com/proxy/0000950123-10-065261) | SC TO-I/A |
| [2010-06-29](https://search.stillhousedata.com/proxy/0000950123-10-062310) | SC TO-I/A |
| [2010-06-18](https://search.stillhousedata.com/proxy/0001341004-10-001058) | SC TO-I/A |
| [2010-06-17](https://search.stillhousedata.com/proxy/0000950123-10-058864) | SC TO-I |
| [2010-05-27](https://search.stillhousedata.com/proxy/0001341004-10-000942) | SC 14D9/A |
| [2010-05-26](https://search.stillhousedata.com/proxy/0001341004-10-000938) | SC 14D9/A |
| [2010-05-20](https://search.stillhousedata.com/proxy/0000950123-10-051647) | SC 14D9/A |
| [2010-05-17](https://search.stillhousedata.com/proxy/0000950123-10-050284) | SC 14D9/A |
| [2010-04-22](https://search.stillhousedata.com/proxy/0001341004-10-000740) | SC 14D9/A |
| 2010-04-06 | SC 14D9/A |
| [2010-03-30](https://search.stillhousedata.com/proxy/0001341004-10-000603) | SC 14D9/A |

## More

- [CIK 729922 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=729922&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0001341004-10-000640.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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