NORTHERN TR CORP

Ticker: NTRS CUSIP: 665859104 Class: COM

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

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

Q1 2018
Shares 198 Value ($000) $20 Avg Close $82.97 Range $74.79 - $88.15
Q4 2017
Shares 198 Value ($000) $20 Avg Close $75.28 Range $71.84 - $80.39
Q3 2017
Shares 198 Value ($000) $18 Avg Close $71.05 Range $67.61 - $77.97
Q2 2017
Shares 198 Value ($000) $19 Avg Close $70.42 Range $66.40 - $77.52
Q1 2017
Shares 198 Value ($000) $17 Avg Close $67.79 Range $63.77 - $70.95
Q4 2016
Shares 198 Value ($000) $18 Avg Close $61.69 Range $52.36 - $70.81
Q3 2016
Shares 259 Value ($000) $18 Avg Close $52.45 Range $47.67 - $55.52
Q2 2016
Shares 259 Value ($000) $17 Avg Close $53.49 Range $47.26 - $57.41
Q1 2016
Shares 326 Value ($000) $21 Avg Close $47.88 Range $41.46 - $54.24
Q4 2015
Shares 326 Value ($000) $24 Avg Close $54.64 Range $49.15 - $57.77
Q3 2015
Shares 326 Value ($000) $22 Avg Close $55.52 Range $49.19 - $59.82
Q2 2015
Shares 326 Value ($000) $25 Avg Close $56.07 Range $51.74 - $59.54
Q1 2015
Shares 326 Value ($000) $23 Avg Close $51.14 Range $45.68 - $54.62
Q4 2014
Shares 244 Value ($000) $16 Avg Close $49.58 Range $45.22 - $51.59
Q3 2014
Shares 244 Value ($000) $17 Avg Close $49.84 Range $46.73 - $52.70
Q2 2014
Shares 244 Value ($000) $16 Avg Close $45.46 Range $42.93 - $48.59
Q1 2014
Shares 244 Value ($000) $16 Avg Close $45.55 Range $42.73 - $49.47