| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 12/31/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/28/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/26/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/21/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/10/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 12/06/18 | S-3ASR | Form S-3ASR: Automatic shelf registration statement of securities of well-known seasoned issuers | 94 | |
| 11/27/18 | CT ORDER | Form CT ORDER: Confidential treatment order | 1 | |
| 11/14/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 11/09/18 | 10-Q | Form 10-Q: Quarterly report pursuant to Section 13 or 15(d) | 76 | |
| 11/08/18 | 8-K | Form 8-K: Current report filing | 13 |