$CHX SEC Filings

Filing Filed On
425 19 Dec 2019
425 19 Dec 2019
425 19 Dec 2019
425 19 Dec 2019
425 19 Dec 2019
425 19 Dec 2019
425 19 Dec 2019
425 19 Dec 2019
425 19 Dec 2019
425 19 Dec 2019
425 19 Dec 2019
425 19 Dec 2019
425 19 Dec 2019
425 19 Dec 2019
FORM 4 19 Nov 2019
FORM 4 19 Nov 2019
FORM 4 19 Nov 2019
FORM 4 19 Nov 2019
FORM 4 19 Nov 2019
FORM 10-Q FOR THE QUARTER ENDED SEPTEMBER 30, 2019 19 Nov 2019