Initial Statement of Ownership

Koppers Holdings Inc. Filed 2018-04-19 Acc 0001209191-18-025554

Documents 1

2018-09-11 3 Initial Statement of Ownership
2018-04-19 3 Initial Statement of Ownership
2018-04-13 8-K Material agreement · Acquisition or sale completed · New debt or obligation · Other events
2017-05-09 3 Initial Statement of Ownership

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