SCHEDULE: Vanguard Group Boosts Koppers Holdings Stake to 7.8%

The Vanguard Group has filed an amendment to its Schedule 13G, reporting a 7.8% beneficial ownership stake in Koppers Holdings Inc.

Summary

• The Vanguard Group reported beneficial ownership of 1,539,485 shares of Koppers Holdings Inc. common stock.
• This represents 7.80% of the class of securities.
• Vanguard holds sole voting power over 0 shares and shared voting power over 151,463 shares.
• Vanguard holds sole dispositive power over 1,368,407 shares and shared dispositive power over 171,078 shares.
• The filing is an Amendment No. 7 to the Schedule 13G.
• The event requiring this filing occurred on September 30, 2025.

Sentiment

Score: 5

Explanation: The filing is a routine disclosure of beneficial ownership by a large institutional investor, The Vanguard Group, and does not contain operational or financial performance data to indicate a positive or negative sentiment.

Positives

• The continued significant stake by a major institutional investor like The Vanguard Group may signal confidence in Koppers Holdings Inc.

Negatives

• NA

Risks

• NA

Future Outlook

NA

Management Comments

• The Vanguard Group certifies that the securities were acquired and are held in the ordinary course of business and not for the purpose or effect of changing or influencing the control of Koppers Holdings Inc.

Industry Context

This filing is a routine disclosure of a significant institutional investor's stake and does not provide specific operational or strategic insights into Koppers Holdings Inc. or its industry beyond the fact that a major asset manager maintains a substantial position.

Stakeholder Impact

• Shareholders: The filing confirms a significant and continued investment by a major institutional fund manager, which can be viewed as a vote of confidence in the company's long-term prospects.
• Employees, Customers, Suppliers, Creditors: No direct impact from this beneficial ownership filing.

Key Dates

Keywords

Vanguard Group, Koppers Holdings Inc, Schedule 13G, Beneficial Ownership, Common Stock, Institutional Investor, Equity Stake