$REGN CORRESP SEC Filings

10-K 10-K/A 10-Q 13F-HR 144 15-12G 3 4 424B1 424B3 424B4 424B5 4/A 5 8-A12G 8-K 8-K/A ARS CORRESP CT ORDER DEF 14A DEFA14A DEFN14A DEFS14A FWP POS EX PRE 14A PRES14A PX14A6G REGDEX S-3 S-3/A S-3ASR S-8 S-8 POS SC 13D SC 13D/A SC 13G SC 13G/A SCHEDULE 13G SCHEDULE 13G/A SC TO-C SC TO-I SC TO-I/A SC TO-T SC TO-T/A UPLOAD