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Schedule 13G/A

KOP Schedule 13G/A filing by BlackRock

BlackRock reported beneficial ownership of 3.8M shares, representing 18.6% of Koppers Holdings Inc. in this filing.

FiledNov 8, 2024
Ownership dateSep 30, 2024
Reported shares3.8M
Reported ownership18.6%
Ownership details

Voting and dispositive power reported in the filing

These figures describe the reporting filer’s disclosed voting and investment authority. They should be read together with the reported share count and percentage.

Sole voting power 3.8M
Shared voting power 3.8M
Sole dispositive power 3.8M
Shared dispositive power 3.8M
Compared with the prior filing

How the reported position changed

This compares the current filing with the previous tracked Schedule 13 filing from the same reporting CIK for KOP. A change between filings does not by itself establish when shares were bought or sold.

Previous filingOct 18, 2024
Reported share change0
Ownership percentage change0 pts
Previous filingThis filing
Reported shares3.8M3.8M
Reported ownership18.6%18.6%
Price context

Price dates alongside the ownership filing

Price data provides market context around the disclosure. It does not identify the filer’s actual transaction price.

Close near filing date$37.22as of Nov 8, 2024
Latest tracked price$51.99as of Aug 4, 2026
Source

Original filing and accession

Use the SEC filing as the primary source when you need the complete disclosure, footnotes, exhibits, or reporting-person details.

Reporting filer
BlackRock
CIK
CIK0002012383
Accession
0002012383-24-004028
Form
Schedule 13G/A
Read the filing in context

Understand what a Schedule 13 filing does—and does not—tell you.