Koppers Holdings ($KOP) Insider Trading & Smart Money Activity

Koppers Holdings Inc. · Specialty Chemicals · Latest filing Jun 15, 2026

Koppers Holdings Inc. ($KOP) has 3 insider trades on file. In the last 12 months on the open market, no insider bought and 1 insider sold ($171.19K), net -$171.19K.

Insider buyers (12 mo): 0
Insider sellers (12 mo): 1
Net insider $ (12 mo): -$171.19K
Congress trades (12 mo): 0
13F moves on file: 0
Analyst ratings on file: 0

KOP insider buying and selling by quarter

Quarter	Insider sales	Congress buys / sales	13F added / cut
Q1 2026	0	0 / 0	0 / 0
Q2 2026	1 · $171.19K	0 / 0	0 / 0
Q3 2026	0	0 / 0	0 / 0
Q4 2026	0	0 / 0	0 / 0

Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.

All KOP insider, congress, 13F and analyst activity

Date	Source	Who	Action	Shares	Value / amount	1W	1M	Story
Jun 15, 2026	Insider	Wilkerson Sonja Michelle	Buy (Grant or award)	30 sh		0.0%	+9.2%	—
Jun 15, 2026	Insider	Xudong Feng	Buy (Grant or award)	34 sh		0.0%	+9.2%	—
Jun 11, 2026	Insider	Leroy BallCEO	Sell (Open-market sale)	4.14K sh	$171.19K	+5.3%	+15.1%	Read

1W / 1M / 6M = how KOP moved from the trade or filing date.

Insider trading in KOP: who is buying and selling

Insider	Role	Trades	Open-market net	Last trade
Wilkerson Sonja Michelle		1	—	Jun 15, 2026
Xudong Feng		1	—	Jun 15, 2026
Leroy Ball	CEO	1	-$171.19K	Jun 11, 2026

Frequently asked questions

Are KOP insiders buying or selling?

Over the last 12 months 0 insiders made 0 open-market purchases worth $0 and 1 insider made 1 open-market sale worth $171.19K, a net -$171.19K.

What is the latest insider trade in KOP?

Wilkerson Sonja Michelle filed a buy (grant or award) of 30 sh on Jun 15, 2026.

Other specialty chemicals stocks

All stocks Insider cluster buys Top insider purchases Congress 13F institutions

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.

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