Date Form Description Filing Group PDF XBRL Pages
05/31/18 SD Specialized Disclosure Report filed pursuant to Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act relating to the use of conflict minerals (Rule 13p-1) Other 11
05/21/18 4 Statement of changes in beneficial ownership of securities 3, 4, 5 1
05/07/18 4 Statement of changes in beneficial ownership of securities 3, 4, 5 1
05/07/18 4 Statement of changes in beneficial ownership of securities 3, 4, 5 1
05/07/18 4 Statement of changes in beneficial ownership of securities 3, 4, 5 1
04/24/18 4 Statement of changes in beneficial ownership of securities 3, 4, 5 1
04/20/18 4 Statement of changes in beneficial ownership of securities 3, 4, 5 1
04/20/18 4 Statement of changes in beneficial ownership of securities 3, 4, 5 1
04/04/18 4 Statement of changes in beneficial ownership of securities 3, 4, 5 1
03/29/18 10-K Annual report pursuant to Section 13 and 15(d) Annual Filing 145