MATERION CORP

Ticker: MTRN CUSIP: 576690101 Class: EQTY

Minneapolis Portfolio Management Group, LLC's Holding History (CIK: 0001317253)

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

Q2 2014

Shares 585,626 Value ($000) $21,662 Avg Close $34.63 Range $31.69 - $37.96

Q1 2014

Shares 607,356 Value ($000) $20,608 Avg Close $29.70 Range $25.21 - $35.19

Q4 2013

Shares 662,451 Value ($000) $20,437 Avg Close $29.01 Range $25.75 - $32.73

Q3 2013

Shares 717,908 Value ($000) $23,016 Avg Close $30.55 Range $27.09 - $33.69

Q2 2013

Shares 745,988 Value ($000) $20,209 Avg Close $28.11 Range $24.58 - $31.49

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2014	585,626	$21,662	$34.63	$31.69 - $37.96
Q1 2014	607,356	$20,608	$29.70	$25.21 - $35.19
Q4 2013	662,451	$20,437	$29.01	$25.75 - $32.73
Q3 2013	717,908	$23,016	$30.55	$27.09 - $33.69
Q2 2013	745,988	$20,209	$28.11	$24.58 - $31.49