PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

OAK ASSOCIATES LTD /OH/'s Holding History (CIK: 0000836372)

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

Q2 2016
Shares 4,175 Value ($000) $240 Avg Close $66.74 Range $55.07 - $82.06
Q1 2016
Shares 4,175 Value ($000) $322 Avg Close $64.57 Range $51.61 - $79.65
Q4 2015
Shares 4,175 Value ($000) $266 Avg Close $64.50 Range $58.84 - $69.48
Q3 2015
Shares 4,175 Value ($000) $280 Avg Close $71.25 Range $65.82 - $79.95
Q2 2015
Shares 4,175 Value ($000) $282 Avg Close $70.59 Range $65.84 - $79.00
Q1 2015
Shares 4,175 Value ($000) $292 Avg Close $67.69 Range $57.30 - $74.82
Q4 2014
Shares 4,175 Value ($000) $280 Avg Close $65.74 Range $54.97 - $73.46
Q3 2014
Shares 4,175 Value ($000) $288 Avg Close $78.24 Range $68.88 - $94.23
Q2 2014
Shares 4,175 Value ($000) $342 Avg Close $67.73 Range $58.06 - $83.06
Q1 2014
Shares 4,175 Value ($000) $283 Avg Close $74.38 Range $62.09 - $84.00
Q4 2013
Shares 4,175 Value ($000) $297 Avg Close $77.51 Range $65.52 - $89.97