$SERA 144 SEC Filings

10-K 10-Q 144 3 3/A 4 424B4 424B5 4/A 8-A12B 8-K 8-K/A ARS CERT CORRESP D D/A DEF 14A DEFA14A DRS DRS/A DRSLTR EFFECT PRE 14A S-1 S-1/A S-3 S-8 SC 13D SC 13G SC 13G/A SCHEDULE 13D SCHEDULE 13D/A SCHEDULE 13G SCHEDULE 13G/A SEC STAFF LETTER UPLOAD