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KOP · Koppers Holdings Inc.

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TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475

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KOP

Name: Koppers Holdings Inc. (KOP) insider trading and ownership data
Creator: WaveMan
License: https://wave-man.com/terms

Koppers Holdings Inc.

MATERIALS · LUMBER & WOOD PRODUCTS (NO FURNITURE) · CIK 0001315257

ACTIVIST 13DFORM 144 · 4☆ WATCH

INSIDER NET · 180D

-$5.4M

open-market buys minus sells, Form 4 codes P and S

INSIDER BUYERS · 180D

CONGRESS BUYERS · 1Y

FUNDS ADDED · QTR

109

13F, latest reported quarter

REVENUE GROWTH

-10.2%

XBRL, annual

NET MARGIN

3.0%

CONVERSIONS · 180D

codes C/M, not in net · $0 priced

SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST

INSIDERS

net -$5.4M over 180 days

-$5.2M over 90 days

below 85% of Materials

CONGRESS

no member of Congress has reported trading it

FUNDS

109 funds added or opened last quarter

below 56% of Materials

REVENUE

-10.2% year over year

below 89% of Materials

MARGIN

3.0% net margin

below 56% of Materials

BUYBACKS

$43.9M repurchased, FY to 2026-06-30

below 66% of Materials

SHORT

3.8% of shares outstanding short · 4.5 days to cover · settled 2026-07-31

more than 55% of Materials

THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET

Insiders are net sellers: -$5.4M across 4 people in 180 days.

109 funds added or opened positions in the latest 13F quarter, of 219 holders.

Simcoe Capital Management, LLC disclosed a 5%+ stake (7.0%) in the last six months.

The year, with the filings on it

Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail

TOTAL 12M RETURN +66.7%

+66.7%12M

INSIDER SELL13D/G STAKEFORM 144

INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY

Live price

Daily candles from TradingView, on their licence — no filings are marked on this one

WHY THIS NAME IS ON THE DESK

An activist crossed the 5% line with declared intent.

The record shows a net $5.4M sold by insiders over 180 days, 109 funds added last quarter, $4.5M in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.

Backtest this pattern Open the screener

Same sector, ranked by filing activity

Sector from the SEC's own SIC classification

JELD LEGH WMS ENTG AVY CMT NKE MATV CROX CSL EXP AMRZ

Insider transactions

Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, Koppers Holdings Inc. insiders sold a net $5.4M of stock across 133 Form 4 purchases and sales, with 0 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-05.

INSIDER

FILED

VALUE

BALL M LEROY

CEO

SELL

2026-08-31

4,000.0

$183.8K

BALL M LEROY

CEO

SELL

2026-08-19

3,000.0

$137.5K

Lucas Stephen G

SVP, Culture and Engagement

SELL

2026-08-12

1,308.0

$58.3K

Sullivan James A.

President and CTO

SELL

2026-08-11

7,500.0

$375.0K

Pearce Bradley A

CAO

SELL

2026-08-10

2,000.0

$102.0K

133 TRANSACTIONS ON RECORD

Showing the most recent few. Create a free account to see 128 more transactions on record, the cross-source screener and CSV export. We store only your email address, and there is no password to create.

Institutional holders

13F · holdings as of the latest quarter funds have reported

BlackRock, Inc.

3,047,603.0 sh

$136.8M

Simcoe Capital Management, LLC

1,416,160.0 sh

$63.6M

DIMENSIONAL FUND ADVISORS LP

1,237,249.0 sh

$55.6M

PZENA INVESTMENT MANAGEMENT LLC

1,061,285.0 sh

$47.7M

FULLER & THALER ASSET MANAGEMENT, INC.

943,279.0 sh

$42.4M

5%+ owners

13D = intent to influence · 13G = passive

Simcoe Capital Management, LLC

ACTIVIST 13D · 2026-05-19

7.0%

SIMCOE PARTNERS L P

ACTIVIST 13D · 2026-05-19

6.4%

Simcoe Select, LP

ACTIVIST 13D · 2026-05-19

0.5%

SIMCOE MANAGEMENT COMPANY, LLC

ACTIVIST 13D · 2026-05-19

6.8%

SDR Partners, LLC

ACTIVIST 13D · 2026-05-19

0.2%

Planned sales · Form 144

Filed before the sale — intent, not a trade

Lucas Stephen G

FILED 2026-08-12

$58.3K

Sullivan James A.

FILED 2026-08-11

$375.0K

Pearce Bradley A

FILED 2026-08-10

$102.0K

Sullivan James A.

FILED 2026-08-07

$4.0M

Fund concentration

N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show

Pzena Small Cap Value Fund

$2.1M POSITION · AS OF 2026-02-28

2.2%

S&P SmallCap 600 Pure Value Fund

$131.5K POSITION · AS OF 2026-03-31

1.3%

Invesco S&P Smallcap 600 Pure Value ETF

$3.3M POSITION · AS OF 2026-04-30

1.2%

Victory Integrity Discovery Fund

$808.4K POSITION · AS OF 2026-03-31

1.2%

First Trust Dow Jones Select MicroCap Index Fund

$2.4M POSITION · AS OF 2026-03-31

1.1%

Acuitas Small Cap Active ETF

$595.0K POSITION · AS OF 2026-03-31

0.8%

SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK

Executive pay vs shareholder return · Leroy M. Ball

DEF 14A pay-versus-performance disclosure · both the headline pay and the SEC's mark-to-market figure, beside the return the company delivered and the return of the peer group it chose itself

CEO TOTAL

ACTUALLY PAID

OTHER NEOs AVG

TSR

PEER TSR

2025

$6.4M

$1.1M

$1.7M

-10%

+54%

2024

$5.9M

-$3.0M

$1.6M

+6%

+35%

2023

$6.0M

$17.6M

$1.6M

+67%

+33%

2022

$5.8M

$2.9M

$1.4M

-9%

+11%

2021

$5.2M

$3.8M

$1.4M

+0%

+18%

TAGGED BY THE COMPANY UNDER SEC ITEM 402(v) · RETURN IS CUMULATIVE FROM THE START OF THE DISCLOSURE PERIOD · GREEN WHERE THE COMPANY BEAT ITS OWN PEER GROUP

Fundamentals

Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all

	2025-12	2024-12	2023-12	2022-12
REVENUE	$1.9B	$2.1B	$2.2B	$2.0B
OPERATING INCOME	$167.8M	$148.2M	$195.2M	$137.7M
NET INCOME	$56.0M	$52.4M	$89.2M	$63.4M
EPS (DILUTED)	2.74	2.46	4.14	2.98
OPERATING CASH FLOW	$122.5M	$119.4M	$146.1M	$102.3M
LONG-TERM DEBT	$914.3M	$925.9M	$835.4M	$817.7M
BUYBACKS	$38.2M	$50.8M	$20.1M	$23.6M
DIVIDENDS PAID	$6.4M	$5.9M	$5.0M	$4.2M

SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-05 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE