United States Chemicals

Koppers Holdings Inc (KOP)

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Over the past 90 days, Koppers Holdings Inc. experienced insider selling activity totaling approximately $320,976. All transactions were executed by CEO M. Leroy Ball. These sales occurred as the stock price reached the 94th percentile of its 52-week range, following a 21.1% increase over the last quarter and a positive earnings report in May.
Ticker: KOP Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Koppers Holdings Inc. Upgrade to see score, net flow, insiders and the full signal context.

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Sale 18 Jun 2026
Value US$1,136,506.88 | Price 71.10 | Shares 84,828 (-23.1%)
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-06-23 2026-06-18 S Sale
3.1
BALL M LEROY

CEO

Executive Director
84,828 -23.1%
71.10
US$1,136,507 		84,828 -23.1% 71.10 US$1,136,507
2026-06-15 2026-06-11 S Sale
3.1
BALL M LEROY

CEO

Executive Director
99,722 +15.0%
45.81
US$1,943,980 		99,722 +15.0% 45.81 US$1,943,980
2026-05-14 2026-05-13 PlS Planned sale
3.1
BALL M LEROY

CEO

Executive Director
5,340 -11.3%
37.37
US$68,724 		5,340 -11.3% 37.37 US$68,724
2026-03-18 2026-03-17 S Sale
3.1
BALL M LEROY

CEO

Executive Director
2,489 -0.6%
37.91
US$94,358 		2,489 -0.6% 37.91 US$94,358
2026-03-04 2026-03-02 S Sale
3.1
BALL M LEROY

CEO

Executive Director
3,763 -0.8%
37.02
US$139,306 		3,763 -0.8% 37.02 US$139,306
2026-03-04 2026-03-02 S Sale
3.1
BALL M LEROY

CEO

Executive Director
328 -0.1%
37.45
US$12,284 		328 -0.1% 37.45 US$12,284
2026-03-04 2026-03-02 S Sale
3.1
BALL M LEROY

CEO

Executive Director
2,184 -0.5%
36.53
US$79,782 		2,184 -0.5% 36.53 US$79,782
2026-03-02 2026-03-02 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
2,512
36.65
US$92,068 		2,512 36.65 US$92,068
2025-08-18 2025-08-15 PlS Planned sale
3.1
BALL M LEROY

CEO

Executive Director
2,448 -0.7%
30.48
US$74,615 		2,448 -0.7% 30.48 US$74,615
2025-08-15 2025-08-15 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
2,448
30.48
US$74,621 		2,448 30.48 US$74,621
2025-08-11 2025-08-11 PrS Proposed sale
2.3
Washington Kevin

Officer

Officer
2,552
27.85
US$71,073 		2,552 27.85 US$71,073
2025-03-20 2025-03-19 S Sale
3.1
BALL M LEROY

CEO

Executive Director
505 -0.1%
30.07
US$15,185 		505 -0.1% 30.07 US$15,185
2025-03-20 2025-03-19 S Sale
3.1
BALL M LEROY

CEO

Executive Director
3,279 -0.9%
29.15
US$95,583 		3,279 -0.9% 29.15 US$95,583
2025-03-19 2025-03-19 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
3,784
29.27
US$110,761 		3,784 29.27 US$110,761
2024-11-22 2024-11-20 PrS Proposed sale
3.1
Tritch Stephen R

BOARD MEMBER AFFILIATE
3,533
37.04
US$130,853 		3,533 37.04 US$130,853
2024-11-20 2024-11-19 S Sale
3.1
Tritch Stephen R
Non-Executive Director
3,533 -6.9%
37.08
US$131,004 		3,533 -6.9% 37.08 US$131,004
2024-11-20 2024-11-19 S Sale
3.1
BALL M LEROY

CEO

Executive Director
27 -0.0%
38.01
US$1,026 		27 -0.0% 38.01 US$1,026
2024-11-20 2024-11-19 S Sale
3.1
BALL M LEROY

CEO

Executive Director
5,973 -1.9%
37.26
US$222,554 		5,973 -1.9% 37.26 US$222,554
2024-11-19 2024-11-19 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
6,000
37.26
US$223,584 		6,000 37.26 US$223,584
2024-11-18 2024-11-15 S Sale
3.1
BALL M LEROY

CEO

Executive Director
1,800 -0.6%
37.59
US$67,662 		1,800 -0.6% 37.59 US$67,662
2024-11-18 2024-11-15 S Sale
3.1
BALL M LEROY

CEO

Executive Director
4,200 -1.3%
36.38
US$152,796 		4,200 -1.3% 36.38 US$152,796
2024-11-15 2024-11-15 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
6,000
36.74
US$220,450 		6,000 36.74 US$220,450
2024-11-18 2024-11-14 S Sale
3.1
BALL M LEROY

CEO

Executive Director
5,103 -1.6%
37.77
US$192,740 		5,103 -1.6% 37.77 US$192,740
2024-11-14 2024-11-14 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
5,103
37.77
US$192,747 		5,103 37.77 US$192,747
2024-11-14 2024-11-13 S Sale
3.1
BALL M LEROY

CEO

Executive Director
4,102 -1.3%
37.81
US$155,097 		4,102 -1.3% 37.81 US$155,097
2024-11-13 2024-11-13 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
4,102
37.81
US$155,094 		4,102 37.81 US$155,094
2024-11-14 2024-11-12 S Sale
3.1
BALL M LEROY

CEO

Executive Director
955 -0.3%
38.22
US$36,500 		955 -0.3% 38.22 US$36,500
2024-11-14 2024-11-12 S Sale
3.1
BALL M LEROY

CEO

Executive Director
4,045 -1.3%
37.85
US$153,103 		4,045 -1.3% 37.85 US$153,103
2024-11-13 2024-11-12 S Sale
3.4
Pearce Bradley A

Chief Accounting Officer

Officer
3,000 -10.2%
37.19
US$111,570 		3,000 -10.2% 37.19 US$111,570
2024-11-12 2024-11-12 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
5,000
37.58
US$187,900 		5,000 37.58 US$187,900
2024-11-12 2024-11-12 PrS Proposed sale
3.4
Pearce Bradley A

Officer

Officer
3,000
37.19
US$111,556 		3,000 37.19 US$111,556
2024-08-30 2024-08-29 S Sale
3.1
BALL M LEROY

CEO

Executive Director
3,803 -1.2%
38.35
US$145,845 		3,803 -1.2% 38.35 US$145,845
2024-08-29 2024-08-29 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
3,803
38.35
US$145,839 		3,803 38.35 US$145,839
2024-08-28 2024-08-27 S Sale
3.1
BALL M LEROY

CEO

Executive Director
4,000 -1.2%
39.06
US$156,240 		4,000 -1.2% 39.06 US$156,240
2024-08-27 2024-08-27 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
4,000
39.06
US$156,238 		4,000 39.06 US$156,238
2024-08-20 2024-08-19 PlS Planned sale
3.1
Dowd Joseph P

VP, Zero Harm

Officer
5,516 -34.9%
37.72
US$208,064 		5,516 -34.9% 37.72 US$208,064
2024-08-19 2024-08-19 PrS Proposed sale
3.1
Dowd Joseph P

Officer

Officer
5,516
37.72
US$208,068 		5,516 37.72 US$208,068
2024-06-20 2024-06-20 S Sale
3.1
BALL M LEROY

CEO

Executive Director
2,265 -0.7%
39.73
US$89,988 		2,265 -0.7% 39.73 US$89,988
2024-06-10 2024-06-07 S Sale
3.1
BALL M LEROY

CEO

Executive Director
2,500 -0.8%
42.45
US$106,125 		2,500 -0.8% 42.45 US$106,125
2024-06-07 2024-06-07 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
2,500
42.45
US$106,136 		2,500 42.45 US$106,136
2024-06-10 2024-06-06 S Sale
3.1
BALL M LEROY

CEO

Executive Director
2,500 -0.8%
43.69
US$109,225 		2,500 -0.8% 43.69 US$109,225
2024-06-06 2024-06-06 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
2,500
43.69
US$109,217 		2,500 43.69 US$109,217
2024-05-29 2024-05-28 S Sale
3.1
BALL M LEROY

CEO

Executive Director
9 -0.0%
42.98
US$387 		9 -0.0% 42.98 US$387
2024-05-29 2024-05-28 S Sale
3.1
BALL M LEROY

CEO

Executive Director
2,491 -0.8%
42.36
US$105,519 		2,491 -0.8% 42.36 US$105,519
2024-05-28 2024-05-28 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
2,500
43.07
US$107,675 		2,500 43.07 US$107,675
2024-05-29 2024-05-24 S Sale
3.1
BALL M LEROY

CEO

Executive Director
2,500 -0.8%
43.13
US$107,825 		2,500 -0.8% 43.13 US$107,825
2024-05-24 2024-05-24 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
2,500
43.13
US$107,816 		2,500 43.13 US$107,816
2024-05-17 2024-05-17 PrS Proposed sale
3.1
Dowd Joseph P

Officer

Officer
6,000
44.46
US$266,768 		6,000 44.46 US$266,768
2024-05-17 2024-05-17 S Sale
3.1
Dowd Joseph P

VP, Zero Harm

Officer
100 -0.6%
45.21
US$4,521 		100 -0.6% 45.21 US$4,521
2024-05-17 2024-05-17 PlS Planned sale
3.1
Dowd Joseph P

VP, Zero Harm

Officer
5,900 -27.1%
44.45
US$262,255 		5,900 -27.1% 44.45 US$262,255
2024-03-22 2024-03-21 S Sale
3.0
Hyde Leslie S

SVP, Chief Sustainability Offi

Officer
3,195 -5.4%
54.51
US$174,159 		3,195 -5.4% 54.51 US$174,159
2024-03-22 2024-03-21 S Sale
3.0
Hyde Leslie S

SVP, Chief Sustainability Offi

Officer
11,246 -16.0%
53.75
US$604,472 		11,246 -16.0% 53.75 US$604,472
2024-03-22 2024-03-21 S Sale
3.0
Hyde Leslie S

SVP, Chief Sustainability Offi

Officer
1,364 -2.4%
54.52
US$74,365 		1,364 -2.4% 54.52 US$74,365
2024-03-22 2024-03-21 S Sale
3.0
Hyde Leslie S

SVP, Chief Sustainability Offi

Officer
6,598 -10.4%
53.77
US$354,774 		6,598 -10.4% 53.77 US$354,774
2024-03-21 2024-03-21 PrS Proposed sale
3.0
Hyde Leslie S

Officer

Officer
22,403
53.91
US$1,207,792 		22,403 53.91 US$1,207,792
2024-03-07 2024-03-06 S Sale
2.3
Washington Kevin

VP, External Relations

Officer
310 -4.6%
53.12
US$16,467 		310 -4.6% 53.12 US$16,467
2024-03-07 2024-03-06 S Sale
2.3
Washington Kevin

VP, External Relations

Officer
843 -11.2%
52.54
US$44,291 		843 -11.2% 52.54 US$44,291
2024-03-07 2024-03-06 S Sale
2.3
Washington Kevin

VP, External Relations

Officer
170 -2.2%
51.84
US$8,813 		170 -2.2% 51.84 US$8,813
2024-03-07 2024-03-06 S Sale
3.1
Dowd Joseph P

VP, Zero Harm

Officer
1,300 -5.6%
52.32
US$68,016 		1,300 -5.6% 52.32 US$68,016
2024-03-07 2024-03-06 S Sale
3.1
BALL M LEROY

CEO

Executive Director
2,362 -0.7%
52.97
US$125,115 		2,362 -0.7% 52.97 US$125,115
2024-03-07 2024-03-06 S Sale
3.1
BALL M LEROY

CEO

Executive Director
30 -0.0%
53.43
US$1,603 		30 -0.0% 53.43 US$1,603
2024-03-07 2024-03-06 S Sale
3.1
BALL M LEROY

CEO

Executive Director
4,970 -1.5%
52.83
US$262,565 		4,970 -1.5% 52.83 US$262,565
2024-03-06 2024-03-06 PrS Proposed sale
2.3
Washington Kevin

Officer

Officer
1,323
52.58
US$69,568 		1,323 52.58 US$69,568
2024-03-06 2024-03-06 PrS Proposed sale
3.1
Dowd Joseph P

Officer

Officer
1,300
52.32
US$68,016 		1,300 52.32 US$68,016
2024-03-06 2024-03-06 PrS Proposed sale
3.1
BALL M LEROY

Officer; Director

Executive Director
5,000
52.84
US$264,191 		5,000 52.84 US$264,191
2024-03-07 2024-03-05 S Sale
2.1
Sullivan James A.

President and COO

Officer
400 -0.4%
54.01
US$21,604 		400 -0.4% 54.01 US$21,604
2024-03-07 2024-03-05 S Sale
2.1
Sullivan James A.

President and COO

Officer
4,614 -4.0%
53.39
US$246,341 		4,614 -4.0% 53.39 US$246,341
2024-03-07 2024-03-05 S Sale
2.1
Sullivan James A.

President and COO

Officer
765 -0.7%
52.91
US$40,476 		765 -0.7% 52.91 US$40,476
2024-03-07 2024-03-05 S Sale
2.1
Sullivan James A.

President and COO

Officer
500 -0.4%
54.04
US$27,020 		500 -0.4% 54.04 US$27,020
2024-03-07 2024-03-05 S Sale
2.1
Sullivan James A.

President and COO

Officer
8,367 -7.0%
53.45
US$447,216 		8,367 -7.0% 53.45 US$447,216
2024-03-07 2024-03-05 S Sale
2.1
Sullivan James A.

President and COO

Officer
1,245 -1.0%
52.93
US$65,898 		1,245 -1.0% 52.93 US$65,898
2024-03-07 2024-03-05 S Sale
2.1
Sullivan James A.

President and COO

Officer
300 -0.3%
54.01
US$16,203 		300 -0.3% 54.01 US$16,203
2024-03-07 2024-03-05 S Sale
2.1
Sullivan James A.

President and COO

Officer
5,829 -5.0%
53.46
US$311,618 		5,829 -5.0% 53.46 US$311,618
2024-03-07 2024-03-05 S Sale
2.1
Sullivan James A.

President and COO

Officer
830 -0.7%
52.91
US$43,915 		830 -0.7% 52.91 US$43,915
2024-03-07 2024-03-05 S Sale
2.1
Sullivan James A.

President and COO

Officer
296 -0.3%
54.03
US$15,993 		296 -0.3% 54.03 US$15,993
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