3-D SYS CORP DEL

Ticker: DDD CUSIP: 88554D205 Class: Stock

Mathes Company, Inc.'s Holding History (CIK: 0001389223)

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

Q3 2014

Shares 5,050 Value ($000) $234 Avg Close $52.15 Range $46.05 - $69.56

Q2 2014

Shares 5,050 Value ($000) $302 Avg Close $51.33 Range $43.35 - $61.03

Q1 2014

Shares 7,700 Value ($000) $455 Avg Close $74.59 Range $54.63 - $97.28

Q4 2013

Shares 15,300 Value ($000) $1,422 Avg Close $70.11 Range $47.33 - $95.40

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2014	5,050	$234	$52.15	$46.05 - $69.56
Q2 2014	5,050	$302	$51.33	$43.35 - $61.03
Q1 2014	7,700	$455	$74.59	$54.63 - $97.28
Q4 2013	15,300	$1,422	$70.11	$47.33 - $95.40