SEC Insider Transactions from TESTONI LOUIS L.

Last updated: 2026-03-14 11:27 UTC | Total transactions: 11

TESTONI LOUIS L has filed 11 insider transactions across 1 company since April 2023.

Most recent transaction: a option exercise of 17 shares of Koppers Holdings Inc. ($KOP) on May 02, 2025.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
May 2, 2025 Koppers Holdings Inc. $KOP TESTONI LOUIS L Not found M Common Stock 17 $0.00 45,778.0000 21,291,000 0.04% 0.00%
May 2, 2025 Koppers Holdings Inc. $KOP TESTONI LOUIS L Not found M Dividend Equivalent Rights 17 $0.00 0.0000 21,291,000 100.00% 0.00%
March 24, 2025 Koppers Holdings Inc. $KOP TESTONI LOUIS L Not found A Dividend Equivalent Rights 17 $0.00 17.0000 21,291,000 9999.99% 0.00%
May 2, 2024 Koppers Holdings Inc. $KOP TESTONI LOUIS L Not found M Common Stock 20 $0.00 43,682.0000 21,539,000 0.05% 0.00%
May 2, 2024 Koppers Holdings Inc. $KOP TESTONI LOUIS L Not found A Common Stock 2079 $0.00 45,761.0000 21,539,000 4.76% 0.01%
May 2, 2024 Koppers Holdings Inc. $KOP TESTONI LOUIS L Not found M Dividend Equivalent Rights 20 $0.00 0.0000 21,539,000 100.00% 0.00%
March 25, 2024 Koppers Holdings Inc. $KOP TESTONI LOUIS L Not found A Dividend Equivalent Rights 20 $0.00 20.0000 21,539,000 9999.99% 0.00%
May 4, 2023 Koppers Holdings Inc. $KOP TESTONI LOUIS L Director M Common Stock 37 $0.00 40,149.0000 21,313,000 0.09% 0.00%
May 4, 2023 Koppers Holdings Inc. $KOP TESTONI LOUIS L Director A Common Stock 3513 $0.00 43,662.0000 21,313,000 8.75% 0.02%
May 4, 2023 Koppers Holdings Inc. $KOP TESTONI LOUIS L Director M Dividend Equivalent Rights 37 $0.00 0.0000 21,313,000 100.00% 0.00%
April 27, 2023 Koppers Holdings Inc. $KOP TESTONI LOUIS L Director A Dividend Equivalent Rights 37 $0.00 37.0000 21,313,000 9999.99% 0.00%