COLUMBIA PROPERTY TRUST, INC. PRE 14A SEC Filings

10-K 10-K/A 10-Q 15-12G 25-NSE 3 4 424B3 424B4 424B5 4/A 5 8-A12B 8-A12G 8-K 8-K/A ARS CERTNYS CORRESP D DEF 14A DEFA14A DEFC14A DEFM14A DFAN14A EFFECT FWP NO ACT POS AM POSASR POS EX PRE 14A PREC14A PREM14A PRER14A S-11 S-11/A S-3ASR S-3D S-3DPOS S-4 S-4/A S-8 S-8 POS SC 13D SC 13D/A SC 13G SC 13G/A SC 14D9 SC 14D9/A SC TO-C SC TO-I SC TO-I/A SC TO-T SC TO-T/A UPLOAD