Stocks · Materials · Lumber & Wood Products (No Furniture)

Koppers Holdings Inc.

KOP Clue Score37
United States Fiscal year ends December CIK 0001315257
$43.41 -1.88% Close, 9 Oct 2026

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
43.41 on 9 Oct 2026
52 39 26 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $26.74 14 Oct 2025 $26.69 15 Oct 2025 $26.43 16 Oct 2025 $26.74 17 Oct 2025 $26.74 20 Oct 2025 $27.01 21 Oct 2025 $27.99 22 Oct 2025 $28.38 23 Oct 2025 $28.72 24 Oct 2025 $29.14 27 Oct 2025 $29.41 28 Oct 2025 $29.37 29 Oct 2025 $29.25 30 Oct 2025 $27.61 31 Oct 2025 $28.22 3 Nov 2025 $28.17 4 Nov 2025 $28.24 5 Nov 2025 $28.05 6 Nov 2025 $27.84 7 Nov 2025 $26.70 10 Nov 2025 $27.70 11 Nov 2025 $28.30 12 Nov 2025 $28.55 13 Nov 2025 $29.39 14 Nov 2025 $28.94 17 Nov 2025 $27.86 18 Nov 2025 $27.93 19 Nov 2025 $27.74 20 Nov 2025 $27.29 21 Nov 2025 $28.21 24 Nov 2025 $28.55 25 Nov 2025 $29.89 26 Nov 2025 $29.70 28 Nov 2025 $29.67 1 Dec 2025 $29.62 2 Dec 2025 $29.22 3 Dec 2025 $29.20 4 Dec 2025 $28.05 5 Dec 2025 $28.01 8 Dec 2025 $28.05 9 Dec 2025 $27.79 10 Dec 2025 $28.78 11 Dec 2025 $29.26 12 Dec 2025 $29.01 15 Dec 2025 $28.49 16 Dec 2025 $28.62 17 Dec 2025 $28.30 18 Dec 2025 $28.13 19 Dec 2025 $27.49 22 Dec 2025 $27.27 23 Dec 2025 $26.85 24 Dec 2025 $27.25 26 Dec 2025 $26.95 29 Dec 2025 $27.29 30 Dec 2025 $27.35 31 Dec 2025 $27.08 2 Jan 2026 $26.67 5 Jan 2026 $26.93 6 Jan 2026 $27.63 7 Jan 2026 $26.93 8 Jan 2026 $27.62 9 Jan 2026 $28.33 12 Jan 2026 $28.93 13 Jan 2026 $28.74 14 Jan 2026 $29.36 15 Jan 2026 $29.24 16 Jan 2026 $29.08 20 Jan 2026 $28.16 21 Jan 2026 $29.52 22 Jan 2026 $29.45 23 Jan 2026 $28.97 26 Jan 2026 $29.13 27 Jan 2026 $29.12 28 Jan 2026 $29.24 29 Jan 2026 $29.62 30 Jan 2026 $29.46 2 Feb 2026 $29.69 3 Feb 2026 $30.31 4 Feb 2026 $31.22 5 Feb 2026 $31.50 6 Feb 2026 $32.30 9 Feb 2026 $32.50 10 Feb 2026 $33.20 11 Feb 2026 $34.21 12 Feb 2026 $34.22 13 Feb 2026 $34.30 17 Feb 2026 $35.07 18 Feb 2026 $35.06 19 Feb 2026 $34.61 20 Feb 2026 $35.11 23 Feb 2026 $33.72 24 Feb 2026 $34.42 25 Feb 2026 $34.52 26 Feb 2026 $37.24 27 Feb 2026 $37.80 2 Mar 2026 $36.42 3 Mar 2026 $36.73 4 Mar 2026 $38.55 5 Mar 2026 $38.02 6 Mar 2026 $37.55 9 Mar 2026 $38.53 10 Mar 2026 $37.19 11 Mar 2026 $37.28 12 Mar 2026 $37.36 13 Mar 2026 $37.77 16 Mar 2026 $38.39 17 Mar 2026 $37.72 18 Mar 2026 $37.35 19 Mar 2026 $37.45 20 Mar 2026 $35.10 23 Mar 2026 $36.10 24 Mar 2026 $37.21 25 Mar 2026 $37.87 26 Mar 2026 $38.77 27 Mar 2026 $37.92 30 Mar 2026 $38.24 31 Mar 2026 $38.68 1 Apr 2026 $37.65 2 Apr 2026 $37.29 6 Apr 2026 $35.79 7 Apr 2026 $36.67 8 Apr 2026 $37.36 9 Apr 2026 $37.04 10 Apr 2026 $37.44 13 Apr 2026 $38.42 14 Apr 2026 $38.44 15 Apr 2026 $37.54 16 Apr 2026 $36.98 17 Apr 2026 $37.69 20 Apr 2026 $37.44 21 Apr 2026 $37.52 22 Apr 2026 $38.01 23 Apr 2026 $38.65 24 Apr 2026 $40.28 27 Apr 2026 $41.35 28 Apr 2026 $41.46 29 Apr 2026 $39.80 30 Apr 2026 $40.83 1 May 2026 $41.91 4 May 2026 $39.84 5 May 2026 $41.35 6 May 2026 $41.61 7 May 2026 $41.16 8 May 2026 $43.99 11 May 2026 $43.08 12 May 2026 $43.55 13 May 2026 $42.69 14 May 2026 $42.41 15 May 2026 $40.68 18 May 2026 $40.39 19 May 2026 $38.31 20 May 2026 $39.20 21 May 2026 $39.63 22 May 2026 $40.36 26 May 2026 $41.54 27 May 2026 $42.73 28 May 2026 $41.29 29 May 2026 $40.80 1 Jun 2026 $41.19 2 Jun 2026 $42.48 3 Jun 2026 $43.09 4 Jun 2026 $42.16 5 Jun 2026 $40.81 8 Jun 2026 $41.22 9 Jun 2026 $41.86 10 Jun 2026 $41.68 11 Jun 2026 $41.52 12 Jun 2026 $43.41 15 Jun 2026 $44.40 16 Jun 2026 $44.50 17 Jun 2026 $43.65 18 Jun 2026 $43.73 22 Jun 2026 $44.42 23 Jun 2026 $42.90 24 Jun 2026 $43.88 25 Jun 2026 $44.70 26 Jun 2026 $45.12 29 Jun 2026 $45.36 30 Jun 2026 $44.90 1 Jul 2026 $44.56 2 Jul 2026 $46.21 6 Jul 2026 $47.10 7 Jul 2026 $46.76 8 Jul 2026 $47.40 9 Jul 2026 $46.59 10 Jul 2026 $47.56 13 Jul 2026 $47.77 14 Jul 2026 $48.53 15 Jul 2026 $48.47 16 Jul 2026 $49.05 17 Jul 2026 $49.14 20 Jul 2026 $49.20 21 Jul 2026 $51.47 22 Jul 2026 $51.17 23 Jul 2026 $49.96 24 Jul 2026 $50.22 27 Jul 2026 $49.61 28 Jul 2026 $50.20 29 Jul 2026 $49.21 30 Jul 2026 $48.98 31 Jul 2026 $49.02 3 Aug 2026 $50.73 4 Aug 2026 $51.99 5 Aug 2026 $51.03 6 Aug 2026 $52.33 7 Aug 2026 $51.24 10 Aug 2026 $50.54 11 Aug 2026 $46.01 12 Aug 2026 $45.34 13 Aug 2026 $46.22 14 Aug 2026 $47.14 17 Aug 2026 $47.45 18 Aug 2026 $45.44 19 Aug 2026 $44.90 20 Aug 2026 $45.88 21 Aug 2026 $45.19 24 Aug 2026 $45.83 25 Aug 2026 $46.13 26 Aug 2026 $46.34 27 Aug 2026 $46.32 28 Aug 2026 $46.56 31 Aug 2026 $45.87 1 Sep 2026 $45.93 2 Sep 2026 $46.72 3 Sep 2026 $46.86 4 Sep 2026 $47.78 8 Sep 2026 $47.12 9 Sep 2026 $46.06 10 Sep 2026 $46.35 11 Sep 2026 $46.35 14 Sep 2026 $46.00 15 Sep 2026 $45.79 16 Sep 2026 $46.72 17 Sep 2026 $46.18 18 Sep 2026 $45.33 21 Sep 2026 $45.61 22 Sep 2026 $46.10 23 Sep 2026 $46.26 24 Sep 2026 $45.96 25 Sep 2026 $46.27 28 Sep 2026 $46.17 29 Sep 2026 $46.08 30 Sep 2026 $45.59 1 Oct 2026 $45.19 2 Oct 2026 $46.04 5 Oct 2026 $47.04 6 Oct 2026 $46.03 7 Oct 2026 $43.88 8 Oct 2026 $44.24 9 Oct 2026 $43.41 BALL M LEROY CEO Sold at will $231.37K 2 Mar 2026 · at $36.87 · 1.4% of stake BALL M LEROY CEO Sold at will $94.36K 17 Mar 2026 · at $37.91 · 0.6% of stake BALL M LEROY CEO Sold at will $113.14K 13 May 2026 · at $42.55 · 0.6% of stake BALL M LEROY CEO Sold at will $171.19K 11 Jun 2026 · at $41.34 · 0.9% of stake BALL M LEROY CEO Sold at will $149.79K 18 Jun 2026 · at $43.90 · 0.8% of stake Sullivan James A. President and CTO Sold at will $4.00M 7 Aug 2026 · at $50.01 · 46.9% of stake Pearce Bradley A CAO Sold at will $102.02K 10 Aug 2026 · at $51.01 · 4.6% of stake Sullivan James A. President and CTO Sold at will $375.00K 11 Aug 2026 · at $50.00 · 8.3% of stake Lucas Stephen G SVP, Culture and Engagement Sold at will $58.27K 12 Aug 2026 · at $44.55 · 3.7% of stake BALL M LEROY CEO Sold at will $137.52K 19 Aug 2026 · at $45.84 · 0.7% of stake BALL M LEROY CEO Sold at will $183.84K 31 Aug 2026 · at $45.96 · 0.9% of stake
0 buys11 sales at will0 planned sales

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$1.88B
Net income
$56.00M
Free cash flow
$67.50M
Operating margin
8.9%
Net margin
3.0%
Return on equity
9.8%
Return on capital
7.8%
Debt to equity
1.60
Revenue growth, 1 yr
-10.2%
Revenue growth, 5 yr
2.4% a year
EPS growth, 1 yr
11.4%

Revenue and profit

Fiscal years, as filed with the SEC · point at a year for the detail
Full statements →
1.7B 122M FY20 Fiscal year 2020 Revenue $1.67B Net income $122.00M Margin 7.3% 1.7B 85M FY21 Fiscal year 2021 Revenue $1.68B Net income $85.20M Margin 5.1% · growth +0.6% 2B 63M FY22 Fiscal year 2022 Revenue $1.98B Net income $63.40M Margin 3.2% · growth +18.0% 2.2B 89M FY23 Fiscal year 2023 Revenue $2.15B Net income $89.20M Margin 4.1% · growth +8.8% 2.1B 52M FY24 Fiscal year 2024 Revenue $2.09B Net income $52.40M Margin 2.5% · growth -2.9% 1.9B 56M FY25 Fiscal year 2025 Revenue $1.88B Net income $56.00M Margin 3.0% · growth -10.2%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
31 Aug 2026 BALL M LEROY
CEO
Sold at will $183.84K 0.9%
19 Aug 2026 BALL M LEROY
CEO
Sold at will $137.52K 0.7%
12 Aug 2026 Lucas Stephen G
SVP, Culture and Engagement
Sold at will $58.27K 3.7%
11 Aug 2026 Sullivan James A.
President and CTO
Sold at will $375.00K 8.3%
10 Aug 2026 Pearce Bradley A
CAO
Sold at will $102.02K 4.6%
7 Aug 2026 Sullivan James A.
President and CTO
Sold at will $4.00M 46.9%