ATKORE INC

Ticker: ATKR CUSIP: 047649108 Class: Common Stock

HARBOR CAPITAL ADVISORS, INC.'s Holding History (CIK: 0001039128)

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

Q4 2025

Shares 451 Value ($000) $0 Avg Close $64.69 Range $54.90 - $72.11

Q3 2025

Shares 459 Value ($000) $0 Avg Close $64.34 Range $52.65 - $78.81

Q2 2025

Shares 523 Value ($000) $0 Avg Close $63.68 Range $48.90 - $71.15

Q1 2025

Shares 526 Value ($000) $0 Avg Close $69.79 Range $54.77 - $87.26

Q4 2024

Shares 267 Value ($000) $0 Avg Close $85.73 Range $73.87 - $102.31

Q3 2024

Shares 234 Value ($000) $0 Avg Close $105.31 Range $77.86 - $148.52

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	451	$0	$64.69	$54.90 - $72.11
Q3 2025	459	$0	$64.34	$52.65 - $78.81
Q2 2025	523	$0	$63.68	$48.90 - $71.15
Q1 2025	526	$0	$69.79	$54.77 - $87.26
Q4 2024	267	$0	$85.73	$73.87 - $102.31
Q3 2024	234	$0	$105.31	$77.86 - $148.52