5/3
02:01 pm
kop
Form 10-Q Koppers Holdings Inc. For: Mar 31
Low
Report
Form 10-Q Koppers Holdings Inc. For: Mar 31
5/3
08:27 am
kop
Form 8-K Koppers Holdings Inc. For: May 02
High
Report
Form 8-K Koppers Holdings Inc. For: May 02
5/2
04:16 pm
kop
Form 8-K/A Koppers Holdings Inc. For: May 02
High
Report
Form 8-K/A Koppers Holdings Inc. For: May 02
4/15
04:20 pm
kop
Form 4 Koppers Holdings Inc. For: Apr 11 Filed by: Lucas Stephen G
Low
Report
Form 4 Koppers Holdings Inc. For: Apr 11 Filed by: Lucas Stephen G
4/15
08:06 am
kop
Form 8-K Koppers Holdings Inc. For: Apr 12
Low
Report
Form 8-K Koppers Holdings Inc. For: Apr 12
4/2
04:38 pm
kop
Form ARS Koppers Holdings Inc. For: Dec 31
Low
Report
Form ARS Koppers Holdings Inc. For: Dec 31
4/2
04:35 pm
kop
Form DEF 14A Koppers Holdings Inc. For: May 02
Low
Report
Form DEF 14A Koppers Holdings Inc. For: May 02
3/27
04:52 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: Lucas Stephen G
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: Lucas Stephen G
3/27
04:49 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: JENSEN TRACI L
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: JENSEN TRACI L
3/27
04:47 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: NEUPAVER ALBERT J
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: NEUPAVER ALBERT J
3/27
04:44 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: Sandifer Andrew D
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: Sandifer Andrew D
3/27
04:40 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: TESTONI LOUIS L
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: TESTONI LOUIS L
3/27
04:38 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: Tritch Stephen R
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: Tritch Stephen R
3/27
04:35 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: MOTLEY DAVID L
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: MOTLEY DAVID L
3/27
04:32 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: Feng Xudong
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: Feng Xudong
3/27
04:26 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: WILKERSON SONJA MICHELLE
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 25 Filed by: WILKERSON SONJA MICHELLE
3/22
04:40 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 21 Filed by: Hyde Leslie S
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 21 Filed by: Hyde Leslie S
3/21
04:22 pm
kop
Form 144 Koppers Holdings Inc. Filed by: Hyde Leslie S
Low
Report
Form 144 Koppers Holdings Inc. Filed by: Hyde Leslie S
3/8
04:33 pm
kop
Form PRE 14A Koppers Holdings Inc. For: May 02
Low
Report
Form PRE 14A Koppers Holdings Inc. For: May 02
3/7
04:47 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 06 Filed by: Washington Kevin
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 06 Filed by: Washington Kevin
3/7
04:44 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 06 Filed by: Dowd Joseph P
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 06 Filed by: Dowd Joseph P
3/7
04:40 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 05 Filed by: Sullivan James A.
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 05 Filed by: Sullivan James A.
3/7
04:36 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 06 Filed by: BALL M LEROY
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 06 Filed by: BALL M LEROY
3/6
06:05 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 04 Filed by: Sullivan James A.
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 04 Filed by: Sullivan James A.
3/6
05:59 pm
kop
Form 4 Koppers Holdings Inc. For: Mar 04 Filed by: BALL M LEROY
Low
Report
Form 4 Koppers Holdings Inc. For: Mar 04 Filed by: BALL M LEROY