29 results
10-Q
2020 Q3
EX-4.1
KOP
Koppers Holdings Inc
Quarterly report
4 Nov 20
9:21am
10-K
2019 FY
EX-4.4
KOP
Koppers Holdings Inc
Annual report
27 Feb 20
6:03am
10-Q
2018 Q1
EX-4.8
KOP
Koppers Holdings Inc
Quarterly report
3 May 18
3:54pm
10-Q
2018 Q1
EX-4.9
KOP
Koppers Holdings Inc
Quarterly report
3 May 18
3:54pm
8-K
EX-4.1
KOP
Koppers Holdings Inc
25 Jan 17
Entry into a Material Definitive Agreement
12:00am
8-K
EX-4.1
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20 Jan 17
Koppers Inc. Announces Initial Results of Tender Offer and Consent
12:00am
S-3ASR
EX-4.11
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15 Dec 16
Automatic shelf registration
12:00am
S-3ASR
EX-4.10
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15 Dec 16
Automatic shelf registration
12:00am
S-3ASR
EX-4.13
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27 Jun 12
Automatic shelf registration
12:00am
S-3ASR
EX-4.14
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27 Jun 12
Automatic shelf registration
12:00am
S-4
EX-4.4
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26 Feb 10
Registration of securities issued in business combination transactions
12:00am