3-D SYS CORP DEL

Ticker: DDD CUSIP: 88554D205 Class: Stock

THOMPSON INVESTMENT MANAGEMENT, INC.'s Holding History (CIK: 0001277279)

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

Q2 2014

Shares 3,650 Value ($000) $218 Avg Close $51.33 Range $43.35 - $61.03

Q4 2013

Shares 2,275 Value ($000) $211 Avg Close $70.11 Range $47.33 - $95.40

Q3 2013

Shares 4,525 Value ($000) $244 Avg Close $49.48 Range $44.20 - $56.23

Q2 2013

Shares 4,625 Value ($000) $203 Avg Close $41.34 Range $30.07 - $51.94

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2014	3,650	$218	$51.33	$43.35 - $61.03
Q4 2013	2,275	$211	$70.11	$47.33 - $95.40
Q3 2013	4,525	$244	$49.48	$44.20 - $56.23
Q2 2013	4,625	$203	$41.34	$30.07 - $51.94