ATKORE INC

Ticker: ATKR CUSIP: 047649108 Class: Common Stock

CANADA PENSION PLAN INVESTMENT BOARD's Holding History (CIK: 0001283718)

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

Q4 2025

Shares 329,100 Value ($000) $20,816 Avg Close $64.69 Range $54.90 - $72.11

Q3 2025

Shares 316,400 Value ($000) $19,851 Avg Close $64.34 Range $52.65 - $78.81

Q2 2025

Shares 91,200 Value ($000) $6,434 Avg Close $63.68 Range $48.90 - $71.15

Q1 2025

Shares 78,400 Value ($000) $4,703 Avg Close $69.79 Range $54.77 - $87.26

Q4 2024

Shares 135,500 Value ($000) $11,307 Avg Close $85.73 Range $73.87 - $102.31

Q3 2024

Shares 8,100 Value ($000) $686 Avg Close $105.31 Range $77.86 - $148.52

Q2 2024

Shares 5,500 Value ($000) $742 Avg Close $154.09 Range $126.00 - $188.47

Q4 2023

Shares 7,800 Value ($000) $1,248 Avg Close $133.07 Range $116.71 - $159.82

Q3 2023

Shares 24,100 Value ($000) $3,595 Avg Close $145.61 Range $132.06 - $158.92

Q2 2023

Shares 24,100 Value ($000) $3,758 Avg Close $126.47 Range $112.03 - $151.87

Q1 2023

Shares 35,500 Value ($000) $4,987 Avg Close $130.69 Range $108.94 - $149.38

Q4 2022

Shares 41,900 Value ($000) $4,752 Avg Close $100.95 Range $75.42 - $123.81

Q3 2022

Shares 31,200 Value ($000) $2,428 Avg Close $83.39 Range $68.00 - $97.57

Q2 2022

Shares 30,000 Value ($000) $2,490 Avg Close $95.85 Range $77.21 - $119.16

Q1 2022

Shares 16,900 Value ($000) $1,663 Avg Close $100.07 Range $88.70 - $115.71

Q4 2021

Shares 12,900 Value ($000) $1,434 Avg Close $98.02 Range $80.56 - $114.29

Q3 2021

Shares 48,700 Value ($000) $4,233 Avg Close $80.31 Range $63.47 - $98.86

Q2 2021

Shares 48,000 Value ($000) $3,408 Avg Close $73.44 Range $64.87 - $86.89

Q1 2021

Shares 48,000 Value ($000) $3,451 Avg Close $58.32 Range $40.58 - $72.92

Q4 2019

Shares 13,500 Value ($000) $546 Avg Close $35.69 Range $27.57 - $41.16

Q1 2019

Shares 2,700 Value ($000) $58 Avg Close $21.55 Range $18.62 - $24.53

Q3 2017

Shares 70,500 Value ($000) $1,375 Avg Close $18.51 Range $14.52 - $22.60

Q2 2017

Shares 140,300 Value ($000) $3,164 Avg Close $22.71 Range $19.91 - $25.85

Q1 2017

Shares 198,100 Value ($000) $5,206 Avg Close $24.84 Range $22.15 - $26.33

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	329,100	$20,816	$64.69	$54.90 - $72.11
Q3 2025	316,400	$19,851	$64.34	$52.65 - $78.81
Q2 2025	91,200	$6,434	$63.68	$48.90 - $71.15
Q1 2025	78,400	$4,703	$69.79	$54.77 - $87.26
Q4 2024	135,500	$11,307	$85.73	$73.87 - $102.31
Q3 2024	8,100	$686	$105.31	$77.86 - $148.52
Q2 2024	5,500	$742	$154.09	$126.00 - $188.47
Q4 2023	7,800	$1,248	$133.07	$116.71 - $159.82
Q3 2023	24,100	$3,595	$145.61	$132.06 - $158.92
Q2 2023	24,100	$3,758	$126.47	$112.03 - $151.87
Q1 2023	35,500	$4,987	$130.69	$108.94 - $149.38
Q4 2022	41,900	$4,752	$100.95	$75.42 - $123.81
Q3 2022	31,200	$2,428	$83.39	$68.00 - $97.57
Q2 2022	30,000	$2,490	$95.85	$77.21 - $119.16
Q1 2022	16,900	$1,663	$100.07	$88.70 - $115.71
Q4 2021	12,900	$1,434	$98.02	$80.56 - $114.29
Q3 2021	48,700	$4,233	$80.31	$63.47 - $98.86
Q2 2021	48,000	$3,408	$73.44	$64.87 - $86.89
Q1 2021	48,000	$3,451	$58.32	$40.58 - $72.92
Q4 2019	13,500	$546	$35.69	$27.57 - $41.16
Q1 2019	2,700	$58	$21.55	$18.62 - $24.53
Q3 2017	70,500	$1,375	$18.51	$14.52 - $22.60
Q2 2017	140,300	$3,164	$22.71	$19.91 - $25.85
Q1 2017	198,100	$5,206	$24.84	$22.15 - $26.33