PROTO LABS INC

Ticker: PRLB CUSIP: 743713109 Class: EQTY

OXFORD ASSET MANAGEMENT LLP's Holding History (CIK: 0001438284)

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

Q4 2018

Shares 4,826 Value ($000) $544 Avg Close $123.33 Range $101.03 - $163.03

Q1 2018

Shares 6,261 Value ($000) $736 Avg Close $113.00 Range $100.05 - $126.95

Q4 2017

Shares 4,179 Value ($000) $439 Avg Close $89.74 Range $79.06 - $109.10

Q1 2014

Shares 12,947 Value ($000) $876 Avg Close $74.38 Range $62.09 - $84.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	4,826	$544	$123.33	$101.03 - $163.03
Q1 2018	6,261	$736	$113.00	$100.05 - $126.95
Q4 2017	4,179	$439	$89.74	$79.06 - $109.10
Q1 2014	12,947	$876	$74.38	$62.09 - $84.00