Koppers News

Koppers | 4: Statement of changes in beneficial ownership of securities-Officer Lucas Stephen G

Apr 15 16:24 ET

Koppers | 8-K: Current report

Apr 15 08:08 ET

Koppers | ARS: Annual Report to Security Holders

Apr 2 16:41 ET

Koppers | DEF 14A: Definitive information statements

Apr 2 16:36 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Officer Lucas Stephen G

Mar 27 16:56 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Director NEUPAVER ALBERT J

Mar 27 16:51 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Director JENSEN TRACI L

Mar 27 16:50 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Director Sandifer Andrew D

Mar 27 16:45 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Director TESTONI LOUIS L

Mar 27 16:45 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Director Tritch Stephen R

Mar 27 16:41 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Director MOTLEY DAVID L

Mar 27 16:40 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Director Feng Xudong

Mar 27 16:37 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Director WILKERSON SONJA MICHELLE

Mar 27 16:31 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Officer Hyde Leslie S

Mar 22 16:43 ET

Koppers | 144: Notice of proposed sale of securities pursuant to Rule 144

Mar 21 16:25 ET

Koppers | PRE 14A: Preliminary proxy statements relating to merger or acquisition

Mar 8 16:38 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Officer Washington Kevin

Mar 7 16:50 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Officer Dowd Joseph P

Mar 7 16:47 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Officer BALL M LEROY

Mar 7 16:43 ET

Koppers | 4: Statement of changes in beneficial ownership of securities-Officer Sullivan James A.

Mar 7 16:41 ET