MATERION CORP

Ticker: MTRN CUSIP: 576690101 Class: EQTY

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

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

Q4 2025

Shares 67 Value ($000) $0 Avg Close $123.31 Range $109.61 - $135.33

Q3 2025

Shares 68 Value ($000) $0 Avg Close $105.00 Range $78.40 - $122.73

Q2 2025

Shares 74 Value ($000) $0 Avg Close $78.87 Range $69.10 - $91.03

Q1 2025

Shares 47 Value ($000) $0 Avg Close $94.24 Range $80.21 - $106.57

Q4 2024

Shares 47 Value ($000) $0 Avg Close $108.67 Range $96.18 - $123.21

Q3 2024

Shares 40 Value ($000) $0 Avg Close $111.21 Range $98.51 - $123.09

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	67	$0	$123.31	$109.61 - $135.33
Q3 2025	68	$0	$105.00	$78.40 - $122.73
Q2 2025	74	$0	$78.87	$69.10 - $91.03
Q1 2025	47	$0	$94.24	$80.21 - $106.57
Q4 2024	47	$0	$108.67	$96.18 - $123.21
Q3 2024	40	$0	$111.21	$98.51 - $123.09