PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

GW&K Investment Management, LLC's Holding History (CIK: 0001082917)

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

Q3 2016
Shares 715,401 Value ($000) $42,860 Avg Close $57.54 Range $50.50 - $61.62
Q2 2016
Shares 680,415 Value ($000) $39,165 Avg Close $66.74 Range $55.07 - $82.06
Q1 2016
Shares 663,152 Value ($000) $51,122 Avg Close $64.57 Range $51.61 - $79.65
Q4 2015
Shares 631,736 Value ($000) $40,235 Avg Close $64.50 Range $58.84 - $69.48
Q3 2015
Shares 643,206 Value ($000) $43,095 Avg Close $71.25 Range $65.82 - $79.95
Q2 2015
Shares 612,831 Value ($000) $41,354 Avg Close $70.59 Range $65.84 - $79.00
Q1 2015
Shares 617,774 Value ($000) $43,244 Avg Close $67.69 Range $57.30 - $74.82
Q4 2014
Shares 612,321 Value ($000) $41,123 Avg Close $65.74 Range $54.97 - $73.46
Q3 2014
Shares 559,054 Value ($000) $38,575 Avg Close $78.24 Range $68.88 - $94.23
Q2 2014
Shares 537,604 Value ($000) $44,041 Avg Close $67.73 Range $58.06 - $83.06
Q1 2014
Shares 403,010 Value ($000) $27,272 Avg Close $74.38 Range $62.09 - $84.00
Q4 2013
Shares 398,879 Value ($000) $28,392 Avg Close $77.51 Range $65.52 - $89.97
Q3 2013
Shares 382,773 Value ($000) $29,240 Avg Close $69.23 Range $61.46 - $80.66
Q2 2013
Shares 329,148 Value ($000) $21,385 Avg Close $53.72 Range $43.62 - $67.40