Section 16 Filings
| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/28/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 02/26/18 | 3 | Initial statement of beneficial ownership of securities | 
       
   | 
  1 | |
| 02/16/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 02/16/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 11/15/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  3 | |
| 11/15/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  3 | |
| 05/22/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 05/22/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 05/22/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 05/22/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

