09/26/2019
9:40 AM | Division of Investment, Department of the Treasury, State of New Jersey (Filed by)
Koppers (Subject)
| Form SC 13G/A
| |
09/24/2019
3:05 PM | Hyde Leslie S (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
09/06/2019
2:56 PM | Feng Xudong (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/14/2019
9:38 AM | Johnson R. Michael (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/08/2019
12:08 PM | Koppers (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
08/08/2019
8:11 AM | Koppers (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
06/04/2019
2:11 PM | Koppers (Issuer)
Pearce Bradley A (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/15/2019
2:06 PM | Koppers (Issuer)
Lacy Steven R (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/15/2019
2:02 PM | Johnson R. Michael (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/14/2019
12:30 PM | Johnson R. Michael (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/10/2019
4:06 PM | Johnson R. Michael (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/09/2019
1:25 PM | Koppers (Issuer)
Pearce Bradley A (Reporting)
| Form 3
Initial statement of beneficial ownership of securities | |
05/09/2019
1:18 PM | Koppers (Issuer)
Lacy Steven R (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/07/2019
3:30 PM | Koppers (Issuer)
Lacy Steven R (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/06/2019
10:33 AM | Koppers (Issuer)
WILKERSON SONJA MICHELLE (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/06/2019
10:31 AM | Koppers (Issuer)
Tritch Stephen R (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/06/2019
10:27 AM | Koppers (Issuer)
NEUPAVER ALBERT J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/06/2019
10:25 AM | Koppers (Issuer)
MOTLEY DAVID L (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/06/2019
10:22 AM | JENSEN TRACI L (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/06/2019
10:18 AM | Feng Xudong (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/06/2019
10:15 AM | Koppers (Issuer)
TESTONI LOUIS L (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/03/2019
11:24 AM | Koppers (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
05/03/2019
8:05 AM | Koppers (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
04/08/2019
12:22 PM | Koppers (Subject)
VANGUARD GROUP INC (Filed by)
| Form SC 13G
| |
04/01/2019
3:30 PM | Koppers (Filer)
| Form DEF 14A
| |
03/15/2019
10:05 AM | Johnson R. Michael (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/08/2019
3:11 PM | Koppers (Issuer)
ZUGAY MICHAEL (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/08/2019
3:08 PM | Koppers (Issuer)
Sullivan James A. (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/08/2019
3:07 PM | Koppers (Issuer)
Lacy Steven R (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/08/2019
3:05 PM | Johnson R. Michael (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/08/2019
3:04 PM | Hyde Leslie S (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/08/2019
3:02 PM | Fenwick Douglas J (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/08/2019
2:59 PM | BALL M LEROY (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/05/2019
2:32 PM | Koppers (Issuer)
ZUGAY MICHAEL (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/05/2019
2:27 PM | Koppers (Issuer)
Sullivan James A. (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/05/2019
2:21 PM | Koppers (Issuer)
Lacy Steven R (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/05/2019
2:19 PM | Hyde Leslie S (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/05/2019
2:17 PM | Fenwick Douglas J (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/05/2019
2:11 PM | Dowd Joseph P (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/05/2019
2:07 PM | BALL M LEROY (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/01/2019
12:33 PM | Koppers (Filer)
| Form 10-K
Annual report pursuant to Section 13 or 15(d) | |
03/01/2019
8:22 AM | Koppers (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
02/14/2019
12:09 PM | FULLER & THALER ASSET MANAGEMENT, INC. (Filed by)
Koppers (Subject)
| Form SC 13G/A
| |
02/14/2019
11:51 AM | Koppers (Subject)
SOUTHERNSUN ASSET MANAGEMENT, LLC (Filed by)
| Form SC 13G
| |
02/14/2019
5:57 AM | Koppers (Subject)
STATE STREET CORP (Filed by)
| Form SC 13G
| |
01/31/2019
1:05 PM | BlackRock Inc. (Filed by)
Koppers (Subject)
| Form SC 13G/A
| |
01/31/2019
10:19 AM | Division of Investment, Department of the Treasury, State of New Jersey (Filed by)
Koppers (Subject)
| Form SC 13G/A
| |
01/22/2019
7:27 AM | Koppers (Issuer)
NIELSEN CHRISTIAN A (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
01/10/2019
3:37 PM | Koppers (Subject)
VANGUARD GROUP INC (Filed by)
| Form SC 13G/A
| |
12/21/2018
9:30 AM | Koppers (Issuer)
McCormack Mark R (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
12/19/2018
8:08 AM | Koppers (Issuer)
ZUGAY MICHAEL (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
12/19/2018
8:02 AM | Johnson R. Michael (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
12/17/2018
1:46 PM | Koppers (Issuer)
Sullivan James A. (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
12/14/2018
2:14 PM | BALL M LEROY (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
12/04/2018
1:44 PM | Dowd Joseph P (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
12/03/2018
2:09 PM | BALL M LEROY (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
11/27/2018
11:30 AM | Koppers (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
11/19/2018
1:00 PM | Koppers (Issuer)
NEUPAVER ALBERT J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
11/15/2018
10:07 AM | Division of Investment, Department of the Treasury, State of New Jersey (Filed by)
Koppers (Subject)
| Form SC 13G
| |
11/14/2018
1:13 PM | Johnson R. Michael (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
11/13/2018
1:44 PM | BALL M LEROY (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
11/13/2018
12:20 PM | Johnson R. Michael (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
11/08/2018
2:41 PM | Koppers (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
11/08/2018
8:50 AM | Koppers (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
10/17/2018
7:51 AM | Koppers (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
09/12/2018
5:39 PM | Koppers (Issuer)
WILKERSON SONJA MICHELLE (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
09/12/2018
5:11 PM | Koppers (Issuer)
WILKERSON SONJA MICHELLE (Reporting)
| Form 3
Initial statement of beneficial ownership of securities | |
09/11/2018
5:33 PM | Koppers (Issuer)
MOTLEY DAVID L (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
09/11/2018
5:29 PM | JENSEN TRACI L (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
09/11/2018
1:11 PM | Koppers (Issuer)
MOTLEY DAVID L (Reporting)
| Form 3
Initial statement of beneficial ownership of securities | |
09/11/2018
1:07 PM | JENSEN TRACI L (Reporting)
Koppers (Issuer)
| Form 3
Initial statement of beneficial ownership of securities | |
09/11/2018
9:07 AM | Koppers (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
09/06/2018
3:36 PM | BALL M LEROY (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/28/2018
3:58 PM | Hyde Leslie S (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/15/2018
3:41 PM | Koppers (Issuer)
NEUPAVER ALBERT J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/15/2018
3:39 PM | Johnson R. Michael (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/15/2018
3:36 PM | Koppers (Issuer)
Sullivan James A. (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
08/09/2018
2:43 PM | Koppers (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
08/09/2018
8:16 AM | Koppers (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
06/25/2018
2:55 PM | Koppers (Filer)
| Form 8-K/A
| |
06/12/2018
4:08 PM | Koppers (Issuer)
ZHU JIANZHONG (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/12/2018
4:04 PM | Koppers (Issuer)
Tronsberg-Deihle Louann E (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/11/2018
10:27 AM | Koppers (Issuer)
Reeder Stephen C (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
06/04/2018
3:39 PM | Koppers (Issuer)
Loadman Thomas D (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/31/2018
4:13 PM | Baldwin Cynthia A (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/31/2018
9:27 AM | Dowd Joseph P (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/30/2018
4:33 PM | GROVES DANIEL R (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/24/2018
4:01 PM | Dowd Joseph P (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/17/2018
4:28 PM | Johnson R. Michael (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/10/2018
10:40 AM | Koppers (Issuer)
Reeder Stephen C (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/10/2018
7:53 AM | Johnson R. Michael (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/10/2018
7:39 AM | Koppers (Issuer)
Tritch Stephen R (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/09/2018
4:39 PM | Koppers (Issuer)
YOUNG T MICHAEL (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/09/2018
4:33 PM | Koppers (Issuer)
TESTONI LOUIS L (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/09/2018
4:32 PM | Koppers (Issuer)
NEUPAVER ALBERT J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/09/2018
4:30 PM | Hillenbrand David M (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/09/2018
4:27 PM | Feng Xudong (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/09/2018
4:25 PM | Baldwin Cynthia A (Reporting)
Koppers (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
05/03/2018
4:05 PM | Koppers (Filer)
| Form S-8
Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans | |
05/03/2018
2:54 PM | Koppers (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
