| Filing date | Form | Filer | Description | Filing Group | View |
|---|---|---|---|---|---|
| SC 13G/A | FMR LLC | An amendment to the SC 13G filing |
Other
|
||
| SC 13G/A | SELIGMAN J & W & CO INC /NY/ | An amendment to the SC 13G filing |
Other
|
||
| SC 13G/A | WADDELL & REED FINANCIAL INC | An amendment to the SC 13G filing |
Other
|
||
| 4 | GRACE OLIVER R JR | Statement of changes in beneficial ownership of securities |
3,4,5
|
||
| 4 | LEWIS MARK SANDERS | Statement of changes in beneficial ownership of securities |
3,4,5
|
||
| 4 | FLUG ROBERT | Statement of changes in beneficial ownership of securities |
3,4,5
|
||
| 8-K | Report of unscheduled material events or corporate event |
Current Reports
|
|||
| 4 | EMMEL TODD | Statement of changes in beneficial ownership of securities |
3,4,5
|
||
| 4 | TISCH STEVE A | Statement of changes in beneficial ownership of securities |
3,4,5
|
||
| SC 13G | WELLINGTON MANAGEMENT CO LLP | A statement of beneficial ownership of common stock by certain persons |
Other
|
Data provided by Kaleidoscope.