ATRICURE INC

Ticker: ATRC CUSIP: 04963C209 Class: Common Stock

Laurion Capital Management LP's Holding History (CIK: 0001390202)

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

Q4 2017

Shares 51,831 Value ($000) $945 Avg Close $19.80 Range $16.18 - $23.73

Q3 2017

Shares 307,209 Value ($000) $6,872 Avg Close $22.61 Range $19.85 - $25.18

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	51,831	$945	$19.80	$16.18 - $23.73
Q3 2017	307,209	$6,872	$22.61	$19.85 - $25.18