KOPPERS HOLDINGS INC

Ticker: KOP CUSIP: 50060P106 Class: Common Stock

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 239,006 Value ($000) $6,472 Avg Close $27.92 Range $24.93 - $30.27

Q3 2025

Shares 251,953 Value ($000) $7,055 Avg Close $30.64 Range $26.64 - $35.42

Q2 2025

Shares 257,157 Value ($000) $8,268 Avg Close $28.51 Range $22.81 - $33.40

Q1 2025

Shares 243,101 Value ($000) $6,807 Avg Close $29.79 Range $26.71 - $32.62

Q4 2024

Shares 248,805 Value ($000) $8,061 Avg Close $35.29 Range $30.31 - $39.33

Q3 2024

Shares 220,380 Value ($000) $8,050 Avg Close $36.81 Range $33.32 - $41.05

Q2 2024

Shares 216,103 Value ($000) $7,994 Avg Close $45.92 Range $36.33 - $56.06

Q1 2024

Shares 222,463 Value ($000) $12,273 Avg Close $50.84 Range $45.30 - $57.24

Q4 2023

Shares 227,236 Value ($000) $11,639 Avg Close $41.07 Range $34.25 - $51.33

Q3 2023

Shares 227,525 Value ($000) $8,999 Avg Close $37.10 Range $32.03 - $41.14

Q2 2023

Shares 225,495 Value ($000) $7,689 Avg Close $31.88 Range $27.88 - $34.73

Q1 2023

Shares 228,107 Value ($000) $7,977 Avg Close $32.48 Range $27.62 - $37.52

Q4 2022

Shares 227,365 Value ($000) $6,412 Avg Close $26.33 Range $20.34 - $31.62

Q3 2022

Shares 224,509 Value ($000) $4,666 Avg Close $22.41 Range $19.60 - $25.85

Q2 2022

Shares 228,982 Value ($000) $5,185 Avg Close $24.62 Range $21.17 - $27.82

Q1 2022

Shares 233,721 Value ($000) $6,432 Avg Close $28.63 Range $26.03 - $32.64

Q4 2021

Shares 239,529 Value ($000) $7,497 Avg Close $31.64 Range $27.29 - $36.29

Q3 2021

Shares 246,435 Value ($000) $7,704 Avg Close $30.18 Range $27.05 - $33.29

Q2 2021

Shares 247,705 Value ($000) $8,014 Avg Close $32.69 Range $29.53 - $38.23

Q1 2021

Shares 260,636 Value ($000) $9,060 Avg Close $33.96 Range $28.60 - $37.95

Q4 2020

Shares 272,805 Value ($000) $8,501 Avg Close $25.23 Range $19.75 - $30.43

Q3 2020

Shares 281,566 Value ($000) $5,888 Avg Close $22.04 Range $16.86 - $26.37

Q2 2020

Shares 298,586 Value ($000) $5,624 Avg Close $14.72 Range $8.00 - $22.09

Q1 2020

Shares 281,265 Value ($000) $3,478 Avg Close $24.89 Range $8.37 - $37.67

Q4 2019

Shares 278,911 Value ($000) $10,660 Avg Close $34.04 Range $25.45 - $43.37

Q3 2019

Shares 289,506 Value ($000) $8,456 Avg Close $26.87 Range $22.89 - $29.57

Q2 2019

Shares 294,667 Value ($000) $8,651 Avg Close $27.00 Range $25.07 - $29.17

Q1 2019

Shares 293,374 Value ($000) $7,623 Avg Close $22.79 Range $16.00 - $26.87

Q4 2018

Shares 298,792 Value ($000) $5,092 Avg Close $22.79 Range $14.54 - $31.53

Q3 2018

Shares 313,856 Value ($000) $9,777 Avg Close $34.72 Range $29.56 - $38.82

Q2 2018

Shares 314,045 Value ($000) $12,044 Avg Close $40.28 Range $36.59 - $44.88

Q1 2018

Shares 310,842 Value ($000) $12,775 Avg Close $42.63 Range $37.56 - $49.72

Q4 2017

Shares 313,647 Value ($000) $15,964 Avg Close $47.24 Range $44.34 - $50.21

Q3 2017

Shares 321,260 Value ($000) $14,826 Avg Close $37.68 Range $34.09 - $45.12

Q2 2017

Shares 326,153 Value ($000) $11,791 Avg Close $37.33 Range $32.86 - $43.42

Q1 2017

Shares 313,076 Value ($000) $13,259 Avg Close $40.70 Range $37.90 - $44.44

Q4 2016

Shares 312,608 Value ($000) $12,598 Avg Close $35.58 Range $30.32 - $41.39

Q3 2016

Shares 307,860 Value ($000) $9,907 Avg Close $30.57 Range $27.66 - $32.67

Q2 2016

Shares 295,341 Value ($000) $9,075 Avg Close $25.09 Range $20.72 - $30.39

Q1 2016

Shares 307,806 Value ($000) $6,905 Avg Close $17.27 Range $13.16 - $22.71

Q4 2015

Shares 288,378 Value ($000) $5,263 Avg Close $19.67 Range $16.81 - $22.90

Q3 2015

Shares 273,064 Value ($000) $5,508 Avg Close $20.57 Range $17.33 - $24.10

Q2 2015

Shares 266,443 Value ($000) $6,585 Avg Close $23.45 Range $18.67 - $26.56

Q1 2015

Shares 269,149 Value ($000) $5,296 Avg Close $19.47 Range $15.29 - $25.63

Q4 2014

Shares 272,985 Value ($000) $7,092 Avg Close $29.74 Range $21.83 - $38.35

Q3 2014

Shares 283,198 Value ($000) $9,391 Avg Close $34.78 Range $31.75 - $37.67

Q2 2014

Shares 292,191 Value ($000) $11,176 Avg Close $37.27 Range $33.70 - $43.17

Q1 2014

Shares 350,328 Value ($000) $14,444 Avg Close $38.65 Range $33.68 - $43.26

Q4 2013

Shares 353,059 Value ($000) $16,153 Avg Close $42.61 Range $39.00 - $46.85

Q3 2013

Shares 376,434 Value ($000) $16,054 Avg Close $36.85 Range $32.31 - $40.30

Q2 2013

Shares 384,285 Value ($000) $14,671 Avg Close $38.63 Range $34.88 - $43.02

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	239,006	$6,472	$27.92	$24.93 - $30.27
Q3 2025	251,953	$7,055	$30.64	$26.64 - $35.42
Q2 2025	257,157	$8,268	$28.51	$22.81 - $33.40
Q1 2025	243,101	$6,807	$29.79	$26.71 - $32.62
Q4 2024	248,805	$8,061	$35.29	$30.31 - $39.33
Q3 2024	220,380	$8,050	$36.81	$33.32 - $41.05
Q2 2024	216,103	$7,994	$45.92	$36.33 - $56.06
Q1 2024	222,463	$12,273	$50.84	$45.30 - $57.24
Q4 2023	227,236	$11,639	$41.07	$34.25 - $51.33
Q3 2023	227,525	$8,999	$37.10	$32.03 - $41.14
Q2 2023	225,495	$7,689	$31.88	$27.88 - $34.73
Q1 2023	228,107	$7,977	$32.48	$27.62 - $37.52
Q4 2022	227,365	$6,412	$26.33	$20.34 - $31.62
Q3 2022	224,509	$4,666	$22.41	$19.60 - $25.85
Q2 2022	228,982	$5,185	$24.62	$21.17 - $27.82
Q1 2022	233,721	$6,432	$28.63	$26.03 - $32.64
Q4 2021	239,529	$7,497	$31.64	$27.29 - $36.29
Q3 2021	246,435	$7,704	$30.18	$27.05 - $33.29
Q2 2021	247,705	$8,014	$32.69	$29.53 - $38.23
Q1 2021	260,636	$9,060	$33.96	$28.60 - $37.95
Q4 2020	272,805	$8,501	$25.23	$19.75 - $30.43
Q3 2020	281,566	$5,888	$22.04	$16.86 - $26.37
Q2 2020	298,586	$5,624	$14.72	$8.00 - $22.09
Q1 2020	281,265	$3,478	$24.89	$8.37 - $37.67
Q4 2019	278,911	$10,660	$34.04	$25.45 - $43.37
Q3 2019	289,506	$8,456	$26.87	$22.89 - $29.57
Q2 2019	294,667	$8,651	$27.00	$25.07 - $29.17
Q1 2019	293,374	$7,623	$22.79	$16.00 - $26.87
Q4 2018	298,792	$5,092	$22.79	$14.54 - $31.53
Q3 2018	313,856	$9,777	$34.72	$29.56 - $38.82
Q2 2018	314,045	$12,044	$40.28	$36.59 - $44.88
Q1 2018	310,842	$12,775	$42.63	$37.56 - $49.72
Q4 2017	313,647	$15,964	$47.24	$44.34 - $50.21
Q3 2017	321,260	$14,826	$37.68	$34.09 - $45.12
Q2 2017	326,153	$11,791	$37.33	$32.86 - $43.42
Q1 2017	313,076	$13,259	$40.70	$37.90 - $44.44
Q4 2016	312,608	$12,598	$35.58	$30.32 - $41.39
Q3 2016	307,860	$9,907	$30.57	$27.66 - $32.67
Q2 2016	295,341	$9,075	$25.09	$20.72 - $30.39
Q1 2016	307,806	$6,905	$17.27	$13.16 - $22.71
Q4 2015	288,378	$5,263	$19.67	$16.81 - $22.90
Q3 2015	273,064	$5,508	$20.57	$17.33 - $24.10
Q2 2015	266,443	$6,585	$23.45	$18.67 - $26.56
Q1 2015	269,149	$5,296	$19.47	$15.29 - $25.63
Q4 2014	272,985	$7,092	$29.74	$21.83 - $38.35
Q3 2014	283,198	$9,391	$34.78	$31.75 - $37.67
Q2 2014	292,191	$11,176	$37.27	$33.70 - $43.17
Q1 2014	350,328	$14,444	$38.65	$33.68 - $43.26
Q4 2013	353,059	$16,153	$42.61	$39.00 - $46.85
Q3 2013	376,434	$16,054	$36.85	$32.31 - $40.30
Q2 2013	384,285	$14,671	$38.63	$34.88 - $43.02