ATRICURE INC

Ticker: ATRC CUSIP: 04963C209 Class: Common Stock

LOCKHEED MARTIN INVESTMENT MANAGEMENT CO's Holding History (CIK: 0000897599)

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

Q3 2017

Shares 36,250 Value ($000) $811 Avg Close $22.61 Range $19.85 - $25.18

Q2 2017

Shares 36,250 Value ($000) $879 Avg Close $21.26 Range $18.33 - $24.85

Q1 2017

Shares 63,500 Value ($000) $1,216 Avg Close $17.52 Range $14.78 - $19.79

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2017	36,250	$811	$22.61	$19.85 - $25.18
Q2 2017	36,250	$879	$21.26	$18.33 - $24.85
Q1 2017	63,500	$1,216	$17.52	$14.78 - $19.79