0000950170-24-053683.txt : 20240506 0000950170-24-053683.hdr.sgml : 20240506 20240506171011 ACCESSION NUMBER: 0000950170-24-053683 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240502 FILED AS OF DATE: 20240506 DATE AS OF CHANGE: 20240506 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: WILKERSON SONJA MICHELLE CENTRAL INDEX KEY: 0001245155 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-32737 FILM NUMBER: 24918537 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Koppers Holdings Inc. CENTRAL INDEX KEY: 0001315257 STANDARD INDUSTRIAL CLASSIFICATION: LUMBER & WOOD PRODUCTS (NO FURNITURE) [2400] ORGANIZATION NAME: 04 Manufacturing IRS NUMBER: 201878963 STATE OF INCORPORATION: PA FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 436 SEVENTH AVENUE CITY: PITTSBURGH STATE: PA ZIP: 15219 BUSINESS PHONE: 412-227-2001 MAIL ADDRESS: STREET 1: 436 SEVENTH AVENUE CITY: PITTSBURGH STATE: PA ZIP: 15219 FORMER COMPANY: FORMER CONFORMED NAME: KI Holdings Inc. DATE OF NAME CHANGE: 20050124 4 1 ownership.xml 4 X0508 4 2024-05-02 0001315257 Koppers Holdings Inc. KOP 0001245155 WILKERSON SONJA MICHELLE 436 SEVENTH AVENUE PITTSBURGH PA 15219 true false false false false Common Stock 2024-05-02 4 M false 20 0 A 20749 D Dividend Equivalent Rights 2024-05-02 4 M false 20 0 D Common Stock 20 63.494 D Restricted Stock Units 2024-05-02 4 A false 2079 0 A Common Stock 2079 6405 D Represents shares acquired upon release of dividend equivalent rights ("DERs"), as reported in Table II, on a one-for-one basis. These DERs were released in connection with the vesting of time-based restricted stock units granted on May 4, 2023. Each DER is the economic equivalent of one share of Koppers Holdings Inc. common stock. Restricted Stock Units ("RSUs") represent the right to receive shares of common stock on a one-for-one basis. The RSUs become payable according to the election of payment designation that was filed by the reporting person subject to the Koppers Holdings Inc. Director Deferred Compensation Plan (the "Plan"). Such payment will be either lump sum or in annual installments commencing on the May 31st next following the reporting person's separation from service (as defined under the Plan) or, if later, and elected by the reporting person at the time he/she first elects to defer any payment under the Plan, May 31st of the year specified by the reporting person. /s/Stephanie L. Apostolou, Attorney in Fact 2024-05-06