NORTHERN TR CORP

Ticker: NTRS CUSIP: 665859104 Class: COM

CONGRESS ASSET MANAGEMENT CO /MA's Holding History (CIK: 0000897378)

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

Q2 2016

Shares 646,816 Value ($000) $42,858 Avg Close $53.49 Range $47.26 - $57.41

Q1 2016

Shares 653,328 Value ($000) $42,577 Avg Close $47.88 Range $41.46 - $54.24

Q4 2015

Shares 635,593 Value ($000) $45,820 Avg Close $54.64 Range $49.15 - $57.77

Q3 2015

Shares 672,408 Value ($000) $45,831 Avg Close $55.52 Range $49.19 - $59.82

Q2 2015

Shares 537,986 Value ($000) $41,134 Avg Close $56.07 Range $51.74 - $59.54

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2016	646,816	$42,858	$53.49	$47.26 - $57.41
Q1 2016	653,328	$42,577	$47.88	$41.46 - $54.24
Q4 2015	635,593	$45,820	$54.64	$49.15 - $57.77
Q3 2015	672,408	$45,831	$55.52	$49.19 - $59.82
Q2 2015	537,986	$41,134	$56.07	$51.74 - $59.54