| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/01/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 
                                            
                             | 
                                    1 | |
| 04/12/19 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 
                                            
                             | 
                                    2 | |
| 04/09/19 | D | Form D: Official notice of an offering of securities that is made without registration under the Securities Act in reliance on an exemption provided by Regulation D and Section 4(a)(5) under the Act. | 
                                            
                             | 
                                    6 | |
| 04/01/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 
                                            
                             | 
                                    1 | |
| 04/01/19 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 
                                            
                             | 
                                    2 | |
| 04/01/19 | SC 13D/A | Form SC 13D/A: Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities | 
                                            
                             | 
                                    27 | |
| 03/29/19 | 8-K | Form 8-K: Current report filing | 
                                            
                             | 
                                    2 | |
| 03/27/19 | DEF 14A | Form DEF 14A: Definitive proxy statements | 
                                            
                             | 
                                    129 | |
| 03/27/19 | 3 | Form 3: Initial statement of beneficial ownership of securities | 
                                            
                             | 
                                    1 | |
| 03/22/19 | 8-K | Form 8-K: Current report filing | 
                                            
                             | 
                                    4 | 
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