PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

Pinkerton Retirement Specialists, LLC's Holding History (CIK: 0001536446)

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

Q4 2016

Shares 321 Value ($000) $16 Avg Close $52.43 Range $43.10 - $59.65

Q3 2016

Shares 276 Value ($000) $17 Avg Close $57.54 Range $50.50 - $61.62

Q2 2016

Shares 353 Value ($000) $20 Avg Close $66.74 Range $55.07 - $82.06

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2016	321	$16	$52.43	$43.10 - $59.65
Q3 2016	276	$17	$57.54	$50.50 - $61.62
Q2 2016	353	$20	$66.74	$55.07 - $82.06