Actually that's as of 12/31/18 (see the top of the Schedule) and that's down from a holding of 7,316,824 shares of Common Stock Class A at 12/31/17. So they sold a little over a million shares and it's a safe bet they wish they hadn't waited.
CUSIP No. 15115V101 13G Page 6 of 7 Pages Item 5. Ownership of Five Percent or Less of a Class.
If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following ?.