X0101 EFFECT 33 LIVE 2020-03-03 0001193125-20-052915 POS AM 0001332639 Seaspan CORP 333-231401 0001776539 SEASPAN CAPITAL LTD. 333-231401-15 0001743231 Seaspan 140 Ltd. 333-231401-13 0001743254 Seaspan (Asia) Corp 333-231401-12 0001743255 Seaspan Containership 2180 Ltd. 333-231401-11 0001743216 Seaspan Containership 2181 Ltd. 333-231401-10 0001743215 Seaspan Holdco I Ltd. 333-231401-09 0001743214 Seaspan Holdco II Ltd. 333-231401-08 0001743238 Seaspan Holdco III Ltd. 333-231401-07 0001743246 Seaspan Advisory Services Ltd 333-231401-01