KOPPERS HOLDINGS INC

Ticker: KOP CUSIP: 50060P106 Class: Common Stock

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 568,413 Value ($000) $15,393 Avg Close $27.92 Range $24.93 - $30.27

Q3 2025

Shares 546,299 Value ($000) $15,296 Avg Close $30.64 Range $26.64 - $35.42

Q2 2025

Shares 456,252 Value ($000) $14,669 Avg Close $28.51 Range $22.81 - $33.40

Q1 2025

Shares 450,439 Value ($000) $12,612 Avg Close $29.79 Range $26.71 - $32.62

Q4 2024

Shares 413,287 Value ($000) $13,390 Avg Close $35.29 Range $30.31 - $39.33

Q3 2024

Shares 424,871 Value ($000) $15,521 Avg Close $36.81 Range $33.32 - $41.05

Q2 2024

Shares 404,285 Value ($000) $14,955 Avg Close $45.92 Range $36.33 - $56.06

Q1 2024

Shares 373,873 Value ($000) $20,627 Avg Close $50.84 Range $45.30 - $57.24

Q4 2023

Shares 351,712 Value ($000) $18,015 Avg Close $41.07 Range $34.25 - $51.33

Q3 2023

Shares 352,845 Value ($000) $13,955 Avg Close $37.10 Range $32.03 - $41.14

Q2 2023

Shares 353,013 Value ($000) $12,038 Avg Close $31.88 Range $27.88 - $34.73

Q1 2023

Shares 355,178 Value ($000) $12,421 Avg Close $32.48 Range $27.62 - $37.52

Q4 2022

Shares 345,532 Value ($000) $9,744 Avg Close $26.33 Range $20.34 - $31.62

Q3 2022

Shares 327,995 Value ($000) $6,817 Avg Close $22.41 Range $19.60 - $25.85

Q2 2022

Shares 297,435 Value ($000) $6,734 Avg Close $24.62 Range $21.17 - $27.82

Q1 2022

Shares 261,849 Value ($000) $7,207 Avg Close $28.63 Range $26.03 - $32.64

Q4 2021

Shares 233,764 Value ($000) $7,317 Avg Close $31.64 Range $27.29 - $36.29

Q3 2021

Shares 270,874 Value ($000) $8,468 Avg Close $30.18 Range $27.05 - $33.29

Q2 2021

Shares 300,881 Value ($000) $9,734 Avg Close $32.69 Range $29.53 - $38.23

Q1 2021

Shares 309,311 Value ($000) $10,752 Avg Close $33.96 Range $28.60 - $37.95

Q4 2020

Shares 204,862 Value ($000) $6,384 Avg Close $25.23 Range $19.75 - $30.43

Q3 2020

Shares 204,533 Value ($000) $4,277 Avg Close $22.04 Range $16.86 - $26.37

Q2 2020

Shares 169,426 Value ($000) $3,192 Avg Close $14.72 Range $8.00 - $22.09

Q1 2020

Shares 220,429 Value ($000) $2,727 Avg Close $24.89 Range $8.37 - $37.67

Q4 2019

Shares 143,752 Value ($000) $5,495 Avg Close $34.04 Range $25.45 - $43.37

Q3 2019

Shares 123,091 Value ($000) $3,596 Avg Close $26.87 Range $22.89 - $29.57

Q2 2019

Shares 116,273 Value ($000) $3,414 Avg Close $27.00 Range $25.07 - $29.17

Q1 2019

Shares 116,547 Value ($000) $3,028 Avg Close $22.79 Range $16.00 - $26.87

Q4 2018

Shares 110,550 Value ($000) $1,884 Avg Close $22.79 Range $14.54 - $31.53

Q3 2018

Shares 115,795 Value ($000) $3,608 Avg Close $34.72 Range $29.56 - $38.82

Q2 2018

Shares 122,713 Value ($000) $4,707 Avg Close $40.28 Range $36.59 - $44.88

Q1 2018

Shares 109,656 Value ($000) $4,507 Avg Close $42.63 Range $37.56 - $49.72

Q4 2017

Shares 117,380 Value ($000) $5,975 Avg Close $47.24 Range $44.34 - $50.21

Q3 2017

Shares 145,860 Value ($000) $6,732 Avg Close $37.68 Range $34.09 - $45.12

Q2 2017

Shares 156,340 Value ($000) $5,652 Avg Close $37.33 Range $32.86 - $43.42

Q1 2017

Shares 277,449 Value ($000) $11,750 Avg Close $40.70 Range $37.90 - $44.44

Q4 2016

Shares 304,805 Value ($000) $12,284 Avg Close $35.58 Range $30.32 - $41.39

Q3 2016

Shares 347,117 Value ($000) $11,171 Avg Close $30.57 Range $27.66 - $32.67

Q2 2016

Shares 294,272 Value ($000) $9,043 Avg Close $25.09 Range $20.72 - $30.39

Q1 2016

Shares 271,796 Value ($000) $6,108 Avg Close $17.27 Range $13.16 - $22.71

Q4 2015

Shares 245,901 Value ($000) $4,488 Avg Close $19.67 Range $16.81 - $22.90

Q3 2015

Shares 145,568 Value ($000) $2,937 Avg Close $20.57 Range $17.33 - $24.10

Q2 2015

Shares 115,144 Value ($000) $2,847 Avg Close $23.45 Range $18.67 - $26.56

Q1 2015

Shares 99,624 Value ($000) $1,961 Avg Close $19.47 Range $15.29 - $25.63

Q4 2014

Shares 86,915 Value ($000) $2,259 Avg Close $29.74 Range $21.83 - $38.35

Q3 2014

Shares 81,462 Value ($000) $2,702 Avg Close $34.78 Range $31.75 - $37.67

Q2 2014

Shares 77,471 Value ($000) $2,964 Avg Close $37.27 Range $33.70 - $43.17

Q1 2014

Shares 73,623 Value ($000) $3,036 Avg Close $38.65 Range $33.68 - $43.26

Q4 2013

Shares 67,985 Value ($000) $3,111 Avg Close $42.61 Range $39.00 - $46.85

Q3 2013

Shares 59,951 Value ($000) $2,579 Avg Close $36.85 Range $32.31 - $40.30

Q2 2013

Shares 58,150 Value ($000) $2,263 Avg Close $38.63 Range $34.88 - $43.02

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	568,413	$15,393	$27.92	$24.93 - $30.27
Q3 2025	546,299	$15,296	$30.64	$26.64 - $35.42
Q2 2025	456,252	$14,669	$28.51	$22.81 - $33.40
Q1 2025	450,439	$12,612	$29.79	$26.71 - $32.62
Q4 2024	413,287	$13,390	$35.29	$30.31 - $39.33
Q3 2024	424,871	$15,521	$36.81	$33.32 - $41.05
Q2 2024	404,285	$14,955	$45.92	$36.33 - $56.06
Q1 2024	373,873	$20,627	$50.84	$45.30 - $57.24
Q4 2023	351,712	$18,015	$41.07	$34.25 - $51.33
Q3 2023	352,845	$13,955	$37.10	$32.03 - $41.14
Q2 2023	353,013	$12,038	$31.88	$27.88 - $34.73
Q1 2023	355,178	$12,421	$32.48	$27.62 - $37.52
Q4 2022	345,532	$9,744	$26.33	$20.34 - $31.62
Q3 2022	327,995	$6,817	$22.41	$19.60 - $25.85
Q2 2022	297,435	$6,734	$24.62	$21.17 - $27.82
Q1 2022	261,849	$7,207	$28.63	$26.03 - $32.64
Q4 2021	233,764	$7,317	$31.64	$27.29 - $36.29
Q3 2021	270,874	$8,468	$30.18	$27.05 - $33.29
Q2 2021	300,881	$9,734	$32.69	$29.53 - $38.23
Q1 2021	309,311	$10,752	$33.96	$28.60 - $37.95
Q4 2020	204,862	$6,384	$25.23	$19.75 - $30.43
Q3 2020	204,533	$4,277	$22.04	$16.86 - $26.37
Q2 2020	169,426	$3,192	$14.72	$8.00 - $22.09
Q1 2020	220,429	$2,727	$24.89	$8.37 - $37.67
Q4 2019	143,752	$5,495	$34.04	$25.45 - $43.37
Q3 2019	123,091	$3,596	$26.87	$22.89 - $29.57
Q2 2019	116,273	$3,414	$27.00	$25.07 - $29.17
Q1 2019	116,547	$3,028	$22.79	$16.00 - $26.87
Q4 2018	110,550	$1,884	$22.79	$14.54 - $31.53
Q3 2018	115,795	$3,608	$34.72	$29.56 - $38.82
Q2 2018	122,713	$4,707	$40.28	$36.59 - $44.88
Q1 2018	109,656	$4,507	$42.63	$37.56 - $49.72
Q4 2017	117,380	$5,975	$47.24	$44.34 - $50.21
Q3 2017	145,860	$6,732	$37.68	$34.09 - $45.12
Q2 2017	156,340	$5,652	$37.33	$32.86 - $43.42
Q1 2017	277,449	$11,750	$40.70	$37.90 - $44.44
Q4 2016	304,805	$12,284	$35.58	$30.32 - $41.39
Q3 2016	347,117	$11,171	$30.57	$27.66 - $32.67
Q2 2016	294,272	$9,043	$25.09	$20.72 - $30.39
Q1 2016	271,796	$6,108	$17.27	$13.16 - $22.71
Q4 2015	245,901	$4,488	$19.67	$16.81 - $22.90
Q3 2015	145,568	$2,937	$20.57	$17.33 - $24.10
Q2 2015	115,144	$2,847	$23.45	$18.67 - $26.56
Q1 2015	99,624	$1,961	$19.47	$15.29 - $25.63
Q4 2014	86,915	$2,259	$29.74	$21.83 - $38.35
Q3 2014	81,462	$2,702	$34.78	$31.75 - $37.67
Q2 2014	77,471	$2,964	$37.27	$33.70 - $43.17
Q1 2014	73,623	$3,036	$38.65	$33.68 - $43.26
Q4 2013	67,985	$3,111	$42.61	$39.00 - $46.85
Q3 2013	59,951	$2,579	$36.85	$32.31 - $40.30
Q2 2013	58,150	$2,263	$38.63	$34.88 - $43.02