<SEC-DOCUMENT>0001144204-17-006017-index.html : 20170206 <SEC-HEADER>0001144204-17-006017.hdr.sgml : 20170206 <ACCEPTANCE-DATETIME>20170203191117 ACCESSION NUMBER: 0001144204-17-006017 CONFORMED SUBMISSION TYPE: S-3ASR PUBLIC DOCUMENT COUNT: 8 FILED AS OF DATE: 20170206 DATE AS OF CHANGE: 20170203 EFFECTIVENESS DATE: 20170206 FILER: COMPANY DATA: COMPANY CONFORMED NAME: COMMUNITY BANK SYSTEM, INC. CENTRAL INDEX KEY: 0000723188 STANDARD INDUSTRIAL CLASSIFICATION: NATIONAL COMMERCIAL BANKS [6021] IRS NUMBER: 161213679 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: S-3ASR SEC ACT: 1933 Act SEC FILE NUMBER: 333-215894 FILM NUMBER: 17573674 BUSINESS ADDRESS: STREET 1: 5790 WIDEWATERS PKWY CITY: DEWITT STATE: NY ZIP: 13214 BUSINESS PHONE: 8007242262 MAIL ADDRESS: STREET 1: 5790 WIDEWATERS PARKWAY CITY: DEWITT STATE: NY ZIP: 13214 FORMER COMPANY: FORMER CONFORMED NAME: COMMUNITY BANK NA, a subsidiary of Community Bank System Inc DATE OF NAME CHANGE: 20130729 FORMER COMPANY: FORMER CONFORMED NAME: COMMUNITY BANK NA, a subsidiary of Community Bank System Inc. DATE OF NAME CHANGE: 20130726 FORMER COMPANY: FORMER CONFORMED NAME: COMMUNITY BANK SYSTEM INC DATE OF NAME CHANGE: 19920703 </SEC-HEADER> <DOCUMENT> <TYPE>S-3ASR <SEQUENCE>1 <FILENAME>v458190_s-3asr.htm <DESCRIPTION>S-3ASR <TEXT> Document 1 - file: v458190_s-3asr.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-5.1 <SEQUENCE>2 <FILENAME>v458190_ex5-1.htm <DESCRIPTION>EXHIBIT 5.1 <TEXT> Document 2 - file: v458190_ex5-1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-10.1 <SEQUENCE>3 <FILENAME>v458190_ex10-1.htm <DESCRIPTION>EXHIBIT 10.1 <TEXT> Document 3 - file: v458190_ex10-1.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-23.1 <SEQUENCE>4 <FILENAME>v458190_ex23-1.htm <DESCRIPTION>EXHIBIT 23.1 <TEXT> Document 4 - file: v458190_ex23-1.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>pg1img1_ex5-1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: pg1img1_ex5-1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>pg1img1_s-3asr.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: pg1img1_s-3asr.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>pg3img1_s-3asr.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 7 - file: pg3img1_s-3asr.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>pg16img1_s-3asr.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 8 - file: pg16img1_s-3asr.jpg
</DOCUMENT> </SEC-DOCUMENT>