ATRICURE INC

Ticker: ATRC CUSIP: 04963C209 Class: Common Stock

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 438,210 Value ($000) $17,336 Avg Close $36.66 Range $30.94 - $42.60

Q3 2025

Shares 462,090 Value ($000) $16,289 Avg Close $34.45 Range $28.96 - $38.33

Q2 2025

Shares 465,260 Value ($000) $15,247 Avg Close $32.50 Range $28.29 - $35.60

Q1 2025

Shares 466,201 Value ($000) $15,040 Avg Close $37.12 Range $29.92 - $43.11

Q4 2024

Shares 483,607 Value ($000) $14,779 Avg Close $32.16 Range $25.57 - $38.34

Q3 2024

Shares 433,454 Value ($000) $12,154 Avg Close $24.65 Range $20.20 - $30.15

Q2 2024

Shares 435,693 Value ($000) $9,921 Avg Close $23.08 Range $18.94 - $30.39

Q1 2024

Shares 456,818 Value ($000) $13,896 Avg Close $33.50 Range $27.92 - $39.05

Q4 2023

Shares 465,162 Value ($000) $16,602 Avg Close $37.19 Range $32.27 - $43.54

Q3 2023

Shares 613,844 Value ($000) $26,886 Avg Close $48.78 Range $40.84 - $59.61

Q2 2023

Shares 612,511 Value ($000) $30,234 Avg Close $46.09 Range $39.03 - $50.85

Q1 2023

Shares 608,395 Value ($000) $25,218 Avg Close $41.50 Range $35.20 - $47.85

Q4 2022

Shares 610,959 Value ($000) $27,114 Avg Close $41.77 Range $32.51 - $49.60

Q3 2022

Shares 609,805 Value ($000) $23,843 Avg Close $45.75 Range $37.81 - $52.96

Q2 2022

Shares 455,336 Value ($000) $18,604 Avg Close $47.37 Range $32.84 - $68.58

Q1 2022

Shares 461,074 Value ($000) $30,279 Avg Close $64.80 Range $56.84 - $72.31

Q4 2021

Shares 482,130 Value ($000) $33,522 Avg Close $72.69 Range $63.31 - $89.18

Q3 2021

Shares 488,972 Value ($000) $34,008 Avg Close $76.95 Range $69.01 - $85.50

Q2 2021

Shares 504,890 Value ($000) $40,053 Avg Close $72.70 Range $62.67 - $80.98

Q1 2021

Shares 516,169 Value ($000) $33,819 Avg Close $61.58 Range $52.54 - $68.00

Q4 2020

Shares 555,813 Value ($000) $30,943 Avg Close $43.24 Range $34.04 - $58.03

Q3 2020

Shares 572,177 Value ($000) $22,830 Avg Close $42.41 Range $34.12 - $48.16

Q2 2020

Shares 559,388 Value ($000) $25,145 Avg Close $43.54 Range $30.66 - $51.76

Q1 2020

Shares 515,461 Value ($000) $17,314 Avg Close $35.95 Range $23.17 - $44.51

Q4 2019

Shares 508,277 Value ($000) $16,524 Avg Close $28.46 Range $23.45 - $32.80

Q3 2019

Shares 552,949 Value ($000) $13,790 Avg Close $28.55 Range $22.57 - $33.00

Q2 2019

Shares 496,898 Value ($000) $14,829 Avg Close $29.19 Range $26.43 - $31.03

Q1 2019

Shares 491,730 Value ($000) $13,173 Avg Close $30.37 Range $26.11 - $33.92

Q4 2018

Shares 489,179 Value ($000) $14,969 Avg Close $31.15 Range $26.41 - $36.49

Q3 2018

Shares 448,419 Value ($000) $15,708 Avg Close $31.66 Range $26.90 - $36.14

Q2 2018

Shares 439,926 Value ($000) $11,899 Avg Close $23.50 Range $19.22 - $30.96

Q1 2018

Shares 415,230 Value ($000) $8,520 Avg Close $18.06 Range $14.88 - $21.21

Q4 2017

Shares 420,791 Value ($000) $7,675 Avg Close $19.80 Range $16.18 - $23.73

Q3 2017

Shares 424,122 Value ($000) $9,487 Avg Close $22.61 Range $19.85 - $25.18

Q2 2017

Shares 427,560 Value ($000) $10,368 Avg Close $21.26 Range $18.33 - $24.85

Q1 2017

Shares 422,084 Value ($000) $8,084 Avg Close $17.52 Range $14.78 - $19.79

Q4 2016

Shares 422,776 Value ($000) $8,273 Avg Close $18.12 Range $15.15 - $20.40

Q3 2016

Shares 401,795 Value ($000) $6,356 Avg Close $15.37 Range $13.45 - $17.27

Q2 2016

Shares 396,301 Value ($000) $5,599 Avg Close $15.24 Range $13.44 - $18.03

Q1 2016

Shares 351,483 Value ($000) $6,021 Avg Close $17.59 Range $14.85 - $22.42

Q4 2015

Shares 344,078 Value ($000) $7,722 Avg Close $20.61 Range $17.46 - $23.24

Q3 2015

Shares 365,983 Value ($000) $8,019 Avg Close $24.99 Range $19.14 - $28.15

Q2 2015

Shares 311,071 Value ($000) $7,664 Avg Close $22.33 Range $19.90 - $25.36

Q1 2015

Shares 324,232 Value ($000) $6,644 Avg Close $19.37 Range $17.22 - $22.97

Q4 2014

Shares 311,816 Value ($000) $6,223 Avg Close $17.16 Range $13.19 - $20.09

Q3 2014

Shares 325,546 Value ($000) $4,793 Avg Close $15.93 Range $14.28 - $18.66

Q2 2014

Shares 302,921 Value ($000) $5,568 Avg Close $16.64 Range $13.80 - $19.67

Q1 2014

Shares 303,715 Value ($000) $5,713 Avg Close $20.49 Range $17.57 - $23.00

Q4 2013

Shares 293,610 Value ($000) $5,485 Avg Close $14.54 Range $11.00 - $19.11

Q3 2013

Shares 283,998 Value ($000) $3,118 Avg Close $9.86 Range $8.48 - $11.25

Q2 2013

Shares 239,031 Value ($000) $2,270 Avg Close $8.71 Range $7.48 - $9.75

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	438,210	$17,336	$36.66	$30.94 - $42.60
Q3 2025	462,090	$16,289	$34.45	$28.96 - $38.33
Q2 2025	465,260	$15,247	$32.50	$28.29 - $35.60
Q1 2025	466,201	$15,040	$37.12	$29.92 - $43.11
Q4 2024	483,607	$14,779	$32.16	$25.57 - $38.34
Q3 2024	433,454	$12,154	$24.65	$20.20 - $30.15
Q2 2024	435,693	$9,921	$23.08	$18.94 - $30.39
Q1 2024	456,818	$13,896	$33.50	$27.92 - $39.05
Q4 2023	465,162	$16,602	$37.19	$32.27 - $43.54
Q3 2023	613,844	$26,886	$48.78	$40.84 - $59.61
Q2 2023	612,511	$30,234	$46.09	$39.03 - $50.85
Q1 2023	608,395	$25,218	$41.50	$35.20 - $47.85
Q4 2022	610,959	$27,114	$41.77	$32.51 - $49.60
Q3 2022	609,805	$23,843	$45.75	$37.81 - $52.96
Q2 2022	455,336	$18,604	$47.37	$32.84 - $68.58
Q1 2022	461,074	$30,279	$64.80	$56.84 - $72.31
Q4 2021	482,130	$33,522	$72.69	$63.31 - $89.18
Q3 2021	488,972	$34,008	$76.95	$69.01 - $85.50
Q2 2021	504,890	$40,053	$72.70	$62.67 - $80.98
Q1 2021	516,169	$33,819	$61.58	$52.54 - $68.00
Q4 2020	555,813	$30,943	$43.24	$34.04 - $58.03
Q3 2020	572,177	$22,830	$42.41	$34.12 - $48.16
Q2 2020	559,388	$25,145	$43.54	$30.66 - $51.76
Q1 2020	515,461	$17,314	$35.95	$23.17 - $44.51
Q4 2019	508,277	$16,524	$28.46	$23.45 - $32.80
Q3 2019	552,949	$13,790	$28.55	$22.57 - $33.00
Q2 2019	496,898	$14,829	$29.19	$26.43 - $31.03
Q1 2019	491,730	$13,173	$30.37	$26.11 - $33.92
Q4 2018	489,179	$14,969	$31.15	$26.41 - $36.49
Q3 2018	448,419	$15,708	$31.66	$26.90 - $36.14
Q2 2018	439,926	$11,899	$23.50	$19.22 - $30.96
Q1 2018	415,230	$8,520	$18.06	$14.88 - $21.21
Q4 2017	420,791	$7,675	$19.80	$16.18 - $23.73
Q3 2017	424,122	$9,487	$22.61	$19.85 - $25.18
Q2 2017	427,560	$10,368	$21.26	$18.33 - $24.85
Q1 2017	422,084	$8,084	$17.52	$14.78 - $19.79
Q4 2016	422,776	$8,273	$18.12	$15.15 - $20.40
Q3 2016	401,795	$6,356	$15.37	$13.45 - $17.27
Q2 2016	396,301	$5,599	$15.24	$13.44 - $18.03
Q1 2016	351,483	$6,021	$17.59	$14.85 - $22.42
Q4 2015	344,078	$7,722	$20.61	$17.46 - $23.24
Q3 2015	365,983	$8,019	$24.99	$19.14 - $28.15
Q2 2015	311,071	$7,664	$22.33	$19.90 - $25.36
Q1 2015	324,232	$6,644	$19.37	$17.22 - $22.97
Q4 2014	311,816	$6,223	$17.16	$13.19 - $20.09
Q3 2014	325,546	$4,793	$15.93	$14.28 - $18.66
Q2 2014	302,921	$5,568	$16.64	$13.80 - $19.67
Q1 2014	303,715	$5,713	$20.49	$17.57 - $23.00
Q4 2013	293,610	$5,485	$14.54	$11.00 - $19.11
Q3 2013	283,998	$3,118	$9.86	$8.48 - $11.25
Q2 2013	239,031	$2,270	$8.71	$7.48 - $9.75