$CHE 144 SEC Filings

10-K 10-K405 10-K/A 10-Q 10-Q/A 11-K 11-K/A 144 3 3/A 4 424B3 424B7 4/A 5 8-A12B 8-K 8-K/A ARS CORRESP DEF 14A DEFA14A DEFC14A DEFR14A DFAN14A NO ACT NT 10-K PRE 14A PREC14A PRRN14A PX14A6G RW S-3 S-3ASR S-4 S-8 S-8 POS SC 13D SC 13D/A SC 13E3 SC 13E3/A SC 13E4 SC 13E4/A SC 13G SC 13G/A SC 14D1 SC 14D1/A SCHEDULE 13G SCHEDULE 13G/A T-3 T-3/A UPLOAD