PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

ROSENBLUM SILVERMAN SUTTON S F INC /CA's Holding History (CIK: 0000918893)

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

Q3 2016
Shares 9,665 Value ($000) $579 Avg Close $57.54 Range $50.50 - $61.62
Q2 2016
Shares 11,065 Value ($000) $637 Avg Close $66.74 Range $55.07 - $82.06
Q4 2015
Shares 11,065 Value ($000) $705 Avg Close $64.50 Range $58.84 - $69.48
Q3 2015
Shares 12,215 Value ($000) $818 Avg Close $71.25 Range $65.82 - $79.95
Q2 2015
Shares 13,165 Value ($000) $888 Avg Close $70.59 Range $65.84 - $79.00
Q4 2014
Shares 11,595 Value ($000) $779 Avg Close $65.74 Range $54.97 - $73.46
Q3 2014
Shares 12,195 Value ($000) $841 Avg Close $78.24 Range $68.88 - $94.23
Q2 2014
Shares 3,815 Value ($000) $313 Avg Close $67.73 Range $58.06 - $83.06
Q1 2014
Shares 4,515 Value ($000) $306 Avg Close $74.38 Range $62.09 - $84.00
Q4 2013
Shares 3,665 Value ($000) $261 Avg Close $77.51 Range $65.52 - $89.97
Q3 2013
Shares 3,500 Value ($000) $267 Avg Close $69.23 Range $61.46 - $80.66