ALLEGHENY TECHNOLOGIES INC

Ticker: ATI CUSIP: 01741R102 Class: EQTY

AMICA MUTUAL INSURANCE CO's Holding History (CIK: 0000857508)

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

Q3 2015

Shares 39,837 Value ($000) $565 Avg Close $20.12 Range $13.34 - $30.02

Q2 2015

Shares 39,837 Value ($000) $1,203 Avg Close $31.90 Range $27.97 - $36.35

Q1 2015

Shares 78,313 Value ($000) $2,350 Avg Close $29.80 Range $25.96 - $33.60

Q4 2014

Shares 78,313 Value ($000) $2,723 Avg Close $31.49 Range $28.73 - $35.21

Q3 2014

Shares 78,313 Value ($000) $2,905 Avg Close $39.92 Range $34.97 - $43.90

Q2 2014

Shares 62,487 Value ($000) $2,818 Avg Close $38.68 Range $35.44 - $42.89

Q1 2014

Shares 62,487 Value ($000) $2,355 Avg Close $31.60 Range $27.91 - $36.14

Q4 2013

Shares 62,487 Value ($000) $2,226 Avg Close $30.74 Range $27.52 - $33.68

Q3 2013

Shares 62,487 Value ($000) $1,907 Avg Close $26.04 Range $23.74 - $30.56

Q2 2013

Shares 37,979 Value ($000) $999 Avg Close $26.04 Range $23.70 - $29.42

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2015	39,837	$565	$20.12	$13.34 - $30.02
Q2 2015	39,837	$1,203	$31.90	$27.97 - $36.35
Q1 2015	78,313	$2,350	$29.80	$25.96 - $33.60
Q4 2014	78,313	$2,723	$31.49	$28.73 - $35.21
Q3 2014	78,313	$2,905	$39.92	$34.97 - $43.90
Q2 2014	62,487	$2,818	$38.68	$35.44 - $42.89
Q1 2014	62,487	$2,355	$31.60	$27.91 - $36.14
Q4 2013	62,487	$2,226	$30.74	$27.52 - $33.68
Q3 2013	62,487	$1,907	$26.04	$23.74 - $30.56
Q2 2013	37,979	$999	$26.04	$23.70 - $29.42