PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

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

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

Q3 2016
Shares 64,867 Value ($000) $3,886 Avg Close $57.54 Range $50.50 - $61.62
Q2 2016
Shares 64,589 Value ($000) $3,718 Avg Close $66.74 Range $55.07 - $82.06
Q1 2016
Shares 62,862 Value ($000) $4,846 Avg Close $64.57 Range $51.61 - $79.65
Q4 2015
Shares 60,526 Value ($000) $3,855 Avg Close $64.50 Range $58.84 - $69.48
Q3 2015
Shares 59,554 Value ($000) $3,990 Avg Close $71.25 Range $65.82 - $79.95
Q2 2015
Shares 57,117 Value ($000) $3,854 Avg Close $70.59 Range $65.84 - $79.00
Q1 2015
Shares 57,065 Value ($000) $3,995 Avg Close $67.69 Range $57.30 - $74.82
Q4 2014
Shares 57,634 Value ($000) $3,871 Avg Close $65.74 Range $54.97 - $73.46
Q3 2014
Shares 57,972 Value ($000) $4,000 Avg Close $78.24 Range $68.88 - $94.23
Q2 2014
Shares 58,138 Value ($000) $4,763 Avg Close $67.73 Range $58.06 - $83.06
Q1 2014
Shares 57,975 Value ($000) $3,923 Avg Close $74.38 Range $62.09 - $84.00
Q4 2013
Shares 55,298 Value ($000) $3,936 Avg Close $77.51 Range $65.52 - $89.97
Q3 2013
Shares 55,005 Value ($000) $4,202 Avg Close $69.23 Range $61.46 - $80.66
Q2 2013
Shares 57,815 Value ($000) $3,756 Avg Close $53.72 Range $43.62 - $67.40