Company · Ownership research

Koppers Holdings Inc. KOP

CIK 0001315257

Form 4 transactions dated Nov 1, 2023 to Nov 7, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 223 rows; the complete set is available through the API.

Insider filings on file run through Sep 15, 2026.

Insider purchases & sales

Purchased: $0.00
Sold: $21.37M

Nov 1, 2023 – Sep 15, 2026
Available records · partial months are marked ·

202410 of 29 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Nov 19, 2024	Tritch Stephen R Director	Sale	$131.00K 3,533 shares sold	6.89% sold Direct holding	▾
Nov 19, 2024	BALL M LEROY CEO · Director	Sale	$223.58K 6,000 shares sold	1.87% sold Direct holding	▾
Nov 15, 2024	BALL M LEROY CEO · Director	Sale	$220.46K 6,000 shares sold	1.87% sold Direct holding	▾
Nov 14, 2024	BALL M LEROY CEO · Director	Sale	$192.74K 5,103 shares sold	1.59% sold Direct holding	▾
Nov 13, 2024	BALL M LEROY CEO · Director	Sale	$155.10K 4,102 shares sold	1.28% sold Direct holding	▾
Nov 12, 2024	BALL M LEROY CEO · Director	Sale	$189.60K 5,000 shares sold	1.56% sold Direct holding	▾
Nov 12, 2024	Pearce Bradley A Chief Accounting Officer	Sale	$111.57K 3,000 shares sold	10.18% sold Direct holding	▾
Aug 29, 2024	BALL M LEROY CEO · Director	Sale	$145.85K 3,803 shares sold	1.19% sold Direct holding	▾
Aug 27, 2024	BALL M LEROY CEO · Director	Sale	$156.24K 4,000 shares sold	1.24% sold Direct holding	▾
Aug 19, 2024	Dowd Joseph P VP, Zero Harm	Sale	$208.06K 5,516 shares sold	34.88% sold Direct holding	▾

Showing 29 / 29 record groups in 2024. The complete set is available through the API.

Koppers Holdings Inc. · KOP

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 29 of 29 purchase / sale groups and 30 of 223 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"KOP","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.