ALCOA CORP

Ticker: AA CUSIP: 013872106 Class: COM

Portolan Capital Management, LLC's Holding History (CIK: 0001350290)

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

Q2 2018

Shares 14,032 Value ($000) $658 Avg Close $48.03 Range $41.41 - $59.56

Q1 2018

Shares 36,457 Value ($000) $1,639 Avg Close $47.30 Range $41.73 - $54.92

Q4 2017

Shares 36,468 Value ($000) $1,965 Avg Close $43.68 Range $38.42 - $52.16

Q3 2017

Shares 36,488 Value ($000) $1,701 Avg Close $38.20 Range $31.44 - $45.80

Q2 2017

Shares 137,227 Value ($000) $4,480 Avg Close $30.99 Range $28.23 - $35.53

Q1 2017

Shares 93,399 Value ($000) $3,213 Avg Close $33.43 Range $26.91 - $38.00

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2018	14,032	$658	$48.03	$41.41 - $59.56
Q1 2018	36,457	$1,639	$47.30	$41.73 - $54.92
Q4 2017	36,468	$1,965	$43.68	$38.42 - $52.16
Q3 2017	36,488	$1,701	$38.20	$31.44 - $45.80
Q2 2017	137,227	$4,480	$30.99	$28.23 - $35.53
Q1 2017	93,399	$3,213	$33.43	$26.91 - $38.00