$SPXC DFAN14A SEC Filings

10-K 10-K405 10-K405/A 10-K/A 10-Q 10-Q/A 11-K 144 15-12G 25 25-NSE 3 3/A 4 424B3 424B5 425 4/A 5 8-A12B 8-K 8-K12B 8-K15D5 8-K/A ARS AW CORRESP DEF 14A DEFA14A DEFC14A DFAN14A EFFECT NT 10-K NT 11-K POS AM PRE 14A PREC14A PRER14A PRRN14A RW S-3 S-3/A S-3ASR S-4 S-4/A S-8 S-8 POS SC 13D SC 13D/A SC 13E4 SC 13E4/A SC 13G SC 13G/A SC 14D1 SC 14D1/A SCHEDULE 13G SCHEDULE 13G/A SC TO-I SC TO-I/A SD UPLOAD