ALCOA CORP

Ticker: AA CUSIP: 013872106 Class: COM

AMG National Trust Bank's Holding History (CIK: 0001388829)

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

Q1 2018

Shares 33,515 Value ($000) $1,507 Avg Close $47.30 Range $41.73 - $54.92

Q4 2017

Shares 33,970 Value ($000) $1,830 Avg Close $43.68 Range $38.42 - $52.16

Q3 2017

Shares 21,858 Value ($000) $1,019 Avg Close $38.20 Range $31.44 - $45.80

Q2 2017

Shares 22,306 Value ($000) $729 Avg Close $30.99 Range $28.23 - $35.53

Q1 2017

Shares 22,664 Value ($000) $779 Avg Close $33.43 Range $26.91 - $38.00

Q4 2016

Shares 21,569 Value ($000) $606 Avg Close $25.90 Range $19.53 - $30.90

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	33,515	$1,507	$47.30	$41.73 - $54.92
Q4 2017	33,970	$1,830	$43.68	$38.42 - $52.16
Q3 2017	21,858	$1,019	$38.20	$31.44 - $45.80
Q2 2017	22,306	$729	$30.99	$28.23 - $35.53
Q1 2017	22,664	$779	$33.43	$26.91 - $38.00
Q4 2016	21,569	$606	$25.90	$19.53 - $30.90