Date Filed | Type | Description |
02/14/2011 |
SC 13G/A
| MASON CAPITAL MANAGEMENT LLC reports a 0% stake in OSI Pharmaceuticals, Inc. |
08/05/2010 |
SC TO-I/A
| Form SC TO-I/A - Tender offer statement by Issuer: [Amend] |
07/13/2010 |
SC TO-I/A
| Form SC TO-I - Tender offer statement by Issuer [amend] |
07/12/2010 |
SC 13G/A
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend] |
06/29/2010 |
SC TO-I/A
| Form SC TO-I - Tender offer statement by Issuer [amend] |
06/18/2010 |
SC TO-I/A
| Form SC TO-I - Tender offer statement by Issuer [amend] |
06/18/2010 |
15-12G
| Form 15-12G - Securities registration termination [Section 12(g)] |
06/17/2010 |
SC TO-I
| Form SC TO-I - Tender offer statement by Issuer |
06/15/2010 |
EFFECT
| Form EFFECT - |
06/15/2010 |
EFFECT
| Form EFFECT - |
06/09/2010 |
8-K
| Quarterly results |
06/09/2010 |
SC 13D
| OSI PHARMACEUTICALS INC reports a 93% stake in OSI Pharmaceuticals, Inc. |
06/09/2010 |
SC TO-T/A
| Form SC TO-T - Tender offer statement by Third Party [amend] |
06/09/2010 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
06/09/2010 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
06/09/2010 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
06/09/2010 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
06/09/2010 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
06/09/2010 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
06/09/2010 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
06/09/2010 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
06/09/2010 |
POS AM
| Form POS AM - Post-Effective amendments for registration statement |
06/09/2010 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
06/09/2010 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
06/09/2010 |
POS AM
| Form POS AM - Post-Effective amendments for registration statement |
06/09/2010 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
06/09/2010 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
06/09/2010 |
POS AM
| Form POS AM - Post-Effective amendments for registration statement |
06/09/2010 |
POS AM
| Form POS AM - Post-Effective amendments for registration statement |
06/09/2010 |
POS AM
| Form POS AM - Post-Effective amendments for registration statement |
06/09/2010 |
POS AM
| Form POS AM - Post-Effective amendments for registration statement |
06/09/2010 |
POS AM
| Form POS AM - Post-Effective amendments for registration statement |
06/09/2010 |
POSASR
| Form POSASR - Post-effective Amendment to an automatic shelf registration statement |
06/09/2010 |
POSASR
| Form POSASR - Post-effective Amendment to an automatic shelf registration statement |
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