$OGS 8-K SEC Filings

10-12B 10-12B/A 10-K 10-K/A 10-Q 10-Q/A 11-K 144 3 4 424B1 424B3 424B5 4/A 8-A12B 8-K 8-K/A ARS CERT CERTNYS CORRESP DEF 14A DEFA14A EFFECT FWP PRE 14A S-3ASR S-4 S-4/A S-8 S-8 POS SC 13G SC 13G/A SCHEDULE 13G SCHEDULE 13G/A SF-1 SF-1/A UPLOAD