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KOP

Koppers Holdings Inc. SEC filings
Lumber & Wood Products (No Furniture) · NYSE · Incorporated in PA
On the radar right now · 1
Nov 6, 8:13 AM ET
Koppers Holdings Inc.KOP
Earnings results
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Filing history
2026-11-06
Quarterly report 10-Q
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2026-11-06
Current report 8-K
Earnings results
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2026-10-30
Passive 5%+ stake SCHEDULE 13G
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2026-10-22
5%+ stake update (13D) SCHEDULE 13D/A
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2026-10-19
Passive 5%+ stake update SCHEDULE 13G/A
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2026-10-08
Passive 5%+ stake update SCHEDULE 13G/A
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2026-09-15
Insider trade 4
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2026-09-15
Insider trade 4
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2026-09-15
Insider trade 4
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2026-09-15
Insider trade 4
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2026-09-01
Insider trade 4
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2026-08-20
Insider trade 4
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2026-08-13
Insider trade 4
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2026-08-12
Insider trade 4
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2026-08-12
Planned insider sale 144
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2026-08-11
Insider trade 4
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2026-08-11
Insider trade 4
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2026-08-11
Planned insider sale 144
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2026-08-10
Planned insider sale 144
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2026-08-07
Planned insider sale 144
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2026-08-06
Quarterly report 10-Q
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2026-08-06
Current report 8-K
Earnings results
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2026-07-31
Passive 5%+ stake update SCHEDULE 13G/A
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2026-06-23
Insider trade 4
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2026-06-17
Insider trade 4
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2026-06-17
Insider trade 4
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2026-06-17
Insider trade 4
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2026-06-17
Insider trade 4
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2026-06-15
Insider trade 4
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2026-06-04
Insider trade 4
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2026-05-27
Insider trade 4
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2026-05-27
New insider's holdings 3
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2026-05-19
5%+ stake, may push for changes SCHEDULE 13D
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2026-05-14
Insider trade 4
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2026-05-14
Insider trade 4
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2026-05-13
Passive 5%+ stake update SCHEDULE 13G/A
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2026-05-11
Insider trade 4
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2026-05-11
Insider trade 4
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2026-05-11
Insider trade 4
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2026-05-11
Insider trade 4
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