ATRICURE INC

Ticker: ATRC CUSIP: 04963C209 Class: Common Stock

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q4 2023

Shares 6,246 Value ($000) $223 Avg Close $37.19 Range $32.27 - $43.54

Q3 2023

Shares 6,236 Value ($000) $273 Avg Close $48.78 Range $40.84 - $59.61

Q2 2023

Shares 6,486 Value ($000) $320 Avg Close $46.09 Range $39.03 - $50.85

Q1 2023

Shares 6,803 Value ($000) $282 Avg Close $41.50 Range $35.20 - $47.85

Q4 2022

Shares 7,286 Value ($000) $323 Avg Close $41.77 Range $32.51 - $49.60

Q4 2017

Shares 10,440 Value ($000) $190 Avg Close $19.80 Range $16.18 - $23.73

Q3 2017

Shares 42,640 Value ($000) $954 Avg Close $22.61 Range $19.85 - $25.18

Q2 2017

Shares 42,640 Value ($000) $1,034 Avg Close $21.26 Range $18.33 - $24.85

Q1 2017

Shares 42,640 Value ($000) $817 Avg Close $17.52 Range $14.78 - $19.79

Q4 2016

Shares 99,035 Value ($000) $1,938 Avg Close $18.12 Range $15.15 - $20.40

Q3 2016

Shares 110,770 Value ($000) $1,752 Avg Close $15.37 Range $13.45 - $17.27

Q2 2016

Shares 100,185 Value ($000) $1,416 Avg Close $15.24 Range $13.44 - $18.03

Q1 2016

Shares 55,665 Value ($000) $937 Avg Close $17.59 Range $14.85 - $22.42

Q4 2015

Shares 54,725 Value ($000) $1,228 Avg Close $20.61 Range $17.46 - $23.24

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2023	6,246	$223	$37.19	$32.27 - $43.54
Q3 2023	6,236	$273	$48.78	$40.84 - $59.61
Q2 2023	6,486	$320	$46.09	$39.03 - $50.85
Q1 2023	6,803	$282	$41.50	$35.20 - $47.85
Q4 2022	7,286	$323	$41.77	$32.51 - $49.60
Q4 2017	10,440	$190	$19.80	$16.18 - $23.73
Q3 2017	42,640	$954	$22.61	$19.85 - $25.18
Q2 2017	42,640	$1,034	$21.26	$18.33 - $24.85
Q1 2017	42,640	$817	$17.52	$14.78 - $19.79
Q4 2016	99,035	$1,938	$18.12	$15.15 - $20.40
Q3 2016	110,770	$1,752	$15.37	$13.45 - $17.27
Q2 2016	100,185	$1,416	$15.24	$13.44 - $18.03
Q1 2016	55,665	$937	$17.59	$14.85 - $22.42
Q4 2015	54,725	$1,228	$20.61	$17.46 - $23.24