| 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 |
3
| Friedman Linda F. (Director) has filed a Form 3 on OSI PHARMACEUTICALS INC |
| 06/09/2010 |
3
| Shea Patrick Michael (Director) has filed a Form 3 on OSI PHARMACEUTICALS INC |
| 06/09/2010 |
3
| Knowles Stephen (Director) has filed a Form 3 on OSI PHARMACEUTICALS INC |
| 06/09/2010 |
3
| Fitzsimmons William E. (Director) has filed a Form 3 on OSI PHARMACEUTICALS INC |
| 06/09/2010 |
4
| WOOD BARBARA A (Sr. V.P. & General Counsel) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Unknown transaction of 622 shares
@ $57.5, valued at
$35.8k
|
|
| 06/09/2010 |
4
| WHITE JOHN P (Director) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Unknown transaction of 5,500 shares
@ $57.5, valued at
$316.3k
|
|
| 06/09/2010 |
4
| SIMON ROBERT L (EVP, Pharmaceut. & Tech. Ops) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Unknown transaction of 736 shares
@ $57.5, valued at
$42.3k
Disposed/sold 280 shares
@ $57.5, valued at
$16.1k
|
|
| 06/09/2010 |
4
| STEVENSON KATHARINE BERGHUIS (Director) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Unknown transaction of 11,490 shares
@ $57.5, valued at
$660.7k
|
|
| 06/09/2010 |
4
| PINEDO HERBERT MD PHD (Director) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Unknown transaction of 5,342 shares
@ $57.5, valued at
$307.2k
|
|
| 06/09/2010 |
4
| NIEMIEC DAVID W (Director) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Unknown transaction of 2,125 shares
@ $57.5, valued at
$122.2k
|
|
| 06/09/2010 |
4
| MEHTA VIREN (Director) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Unknown transaction of 375 shares
@ $57.5, valued at
$21.6k
|
|
| 06/09/2010 |
4
| LUNDEMOSE ANKER MD, PH.D, DSC (EVP, Corp. Dev & Strategic Pln) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Unknown transaction of 1,675 shares
@ $57.5, valued at
$96.3k
|
|
| 06/09/2010 |
4
| LEUNG GABRIEL (EVP & Pres. Pharma. Business) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Unknown transaction of 910 shares
@ $57.5, valued at
$52.3k
|
|
| 06/09/2010 |
4
| KLEIN JOSEPH III (Director) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Disposed/sold 8,500 shares
@ $57.5, valued at
$488.8k
Disposed/sold 5,000 shares
@ $57.5, valued at
$287.5k
|
|
| 06/09/2010 |
4
| INGRAM ROBERT ALEXANDER (Director) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Disposed/sold 750 shares
@ $57.5, valued at
$43.1k
|
|
| 06/09/2010 |
4
| GODDARD COLIN (CEO) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Unknown transaction of 4,175 shares
@ $57.5, valued at
$240.1k
|
|
| 06/09/2010 |
4
| Epstein David M. (Sr. VP and CSO, Oncology) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Unknown transaction of 8 shares
@ $57.5, valued at
$460 |
|
| 06/09/2010 |
4
| Davies Angela M. (Sr. VP and CMO, Oncology) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Disposed/sold 16 shares
@ $57.5, valued at
$920 |
|
| 06/09/2010 |
4
| COSTA SANTO J (Director) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Unknown transaction of 6,500 shares
@ $57.5, valued at
$373.8k
|
|
| 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 |
4
| Astellas Pharma Inc. (10% Owner) has filed a Form 4 on OSI PHARMACEUTICALS INC|
Txns:
| Bought 6,387,295 shares
@ $57.5, valued at
$367.3M
|
|
| 06/09/2010 |
S-8 POS
| Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments |
|