MATERION CORP

Ticker: MTRN CUSIP: 576690101 Class: EQTY

Mountaineer Partners Management, LLC's Holding History (CIK: 0001730532)

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

Q4 2024

Shares 79,742 Value ($000) $7,885 Avg Close $108.67 Range $96.18 - $123.21

Q3 2024

Shares 81,776 Value ($000) $9,147 Avg Close $111.21 Range $98.51 - $123.09

Q2 2024

Shares 95,650 Value ($000) $10,343 Avg Close $114.94 Range $104.91 - $131.97

Q1 2024

Shares 100,171 Value ($000) $13,198 Avg Close $126.70 Range $115.25 - $145.08

Q4 2023

Shares 105,800 Value ($000) $13,768 Avg Close $109.69 Range $92.23 - $132.50

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2024	79,742	$7,885	$108.67	$96.18 - $123.21
Q3 2024	81,776	$9,147	$111.21	$98.51 - $123.09
Q2 2024	95,650	$10,343	$114.94	$104.91 - $131.97
Q1 2024	100,171	$13,198	$126.70	$115.25 - $145.08
Q4 2023	105,800	$13,768	$109.69	$92.23 - $132.50