Pearce Bradley A 4

What Happened
Bradley A. Pearce, Interim Chief Financial Officer and Chief Accounting Officer of Koppers Holdings, was awarded 5,000 restricted stock units (RSUs) on May 12, 2026. The grant is reported at $0.00 per share for a total reported acquisition value of $0 — RSUs are compensation awards rather than an open-market purchase or sale. According to the filing, these RSUs will vest in full on May 12, 2029.

Key Details

• Transaction date: May 12, 2026 (reported on Form 4 filed May 14, 2026)
• Transaction code: A (Award/Grant) at $0.00 per share for 5,000 shares (total $0 reported)
• Vesting: Awards vest in full on May 12, 2029 (see footnote F1)
• Shares owned after transaction: Not disclosed in this Form 4 filing
• Timeliness: Form 4 filed May 14, 2026 (appears timely; Form 4 is generally due within two business days)

Context: RSU grants are a form of compensation and retention for executives and do not represent an immediate market purchase or sale. They typically vest over time and may convert to common shares (or be settled in cash) according to the company's plan; this filing shows the grant and vesting date but does not indicate any immediate change in market exposure.