NORTHERN TR CORP

Ticker: NTRS CUSIP: 665859104 Class: COM

Aurora Investment Counsel's Holding History (CIK: 0001316397)

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

Q3 2018

Shares 16,735 Value ($000) $1,709 Avg Close $85.59 Range $81.23 - $92.33

Q2 2018

Shares 17,118 Value ($000) $1,761 Avg Close $84.33 Range $79.47 - $87.26

Q1 2018

Shares 18,207 Value ($000) $1,878 Avg Close $82.97 Range $74.79 - $88.15

Q4 2017

Shares 21,637 Value ($000) $2,161 Avg Close $75.28 Range $71.84 - $80.39

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	16,735	$1,709	$85.59	$81.23 - $92.33
Q2 2018	17,118	$1,761	$84.33	$79.47 - $87.26
Q1 2018	18,207	$1,878	$82.97	$74.79 - $88.15
Q4 2017	21,637	$2,161	$75.28	$71.84 - $80.39