Testoni Louis L

Testoni Louis L is listed in filings as Director at Koppers Holdings Inc.. This profile follows SEC Form 4 activity through May 6, 2025, including 2 public disclosures. Recent filings connect the profile to Koppers Holdings Inc. (KOP). The current snapshot covers public activity from Mar 26, 2025 to May 6, 2025. The page organizes purchases, sales, issuer links, reported share activity, and filing evidence for review as public disclosure data.