PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q2 2021
Shares 693 Value ($000) $64 Avg Close $98.50 Range $82.60 - $127.65
Q4 2017
Shares 3,780 Value ($000) $389 Avg Close $89.74 Range $79.06 - $109.10
Q1 2017
Shares 779 Value ($000) $40 Avg Close $52.95 Range $48.00 - $60.25
Q3 2016
Shares 3,476 Value ($000) $208 Avg Close $57.54 Range $50.50 - $61.62
Q2 2016
Shares 19,429 Value ($000) $1,118 Avg Close $66.74 Range $55.07 - $82.06
Q2 2015
Shares 1,059 Value ($000) $71 Avg Close $70.59 Range $65.84 - $79.00
Q1 2015
Shares 1,215 Value ($000) $85 Avg Close $67.69 Range $57.30 - $74.82