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AtriCure Inc (ATRC) Ownership Data

Short Interest History (%)

This is the historical short interest of AtriCure Inc, as measured by the Short Percentage Of Float.

Date Short Interest
May 15, 201512.41
April 30, 201511.19
April 15, 201510.94
March 31, 201511.77
March 13, 201510.9
February 27, 201510.46
February 13, 201510.79
January 30, 201510.5
January 15, 20159.03
December 31, 20148.41
December 15, 20147.97
November 28, 20146.74
November 14, 20146.44
October 31, 20146.54
October 15, 20145.84
September 30, 20145.64
September 15, 20145.08
August 29, 20145.03
August 15, 20144.78
July 31, 20145.29
July 15, 20144.97
June 30, 20144.68
June 13, 20144.75
May 30, 20144.48
May 15, 20144.34
April 30, 20143.41
April 15, 20143.5
March 31, 20144.05
March 14, 20143.67
February 28, 20142.58
February 14, 20142.59
January 31, 20142.26
January 15, 20142.03
December 31, 20131.9
December 13, 20131.99
November 29, 20131.98
November 15, 20131.84
October 31, 20131.8
October 15, 20132.02
September 30, 20131.97
September 13, 20132.25
August 30, 20132.16
August 15, 20132.04
July 31, 20131.95
July 15, 20132.43
June 28, 20132
June 14, 20132.55
May 31, 20132.48
May 15, 20132.77
April 30, 20132.59
April 15, 20132.46
March 28, 20134.08
March 15, 20134.19
February 28, 20133.77
February 15, 20133.7
January 31, 20132.94
January 15, 20132.82
December 31, 20122.94
December 14, 20123.51
November 30, 20123.97
November 15, 20123.52
October 31, 20123.64
October 15, 20123.67
September 28, 20123.72
September 14, 20124.31
August 31, 20124.58
August 15, 20124.74
July 31, 20124.11
July 13, 20124.47
June 29, 20125.05
June 15, 20125.02
May 31, 20124.92
May 15, 20124.51
April 30, 20124.39
April 13, 20123.78
March 30, 20123.22
March 15, 20123.76
February 29, 20123.92
February 15, 20124.02
January 31, 20124.57
January 13, 20124.51
December 30, 20114.81
December 15, 20114.57
November 30, 20114.93
November 15, 20115.1
October 31, 20115.07
October 14, 20115.57
September 30, 20115.82
September 15, 20115.65
August 31, 20115.29
August 15, 20114.8
July 29, 20114.54
July 15, 20114.8
June 30, 20115.88
June 15, 20110.35
May 31, 20110.34
May 13, 20110.31
April 29, 20110.25
April 15, 20110.29
March 31, 20110.21
March 15, 20110.17
February 28, 20110.21
February 15, 20110.21
January 31, 20110.25
January 14, 20110.24
December 31, 20100.23
December 15, 20100.3
November 30, 20100.34
November 15, 20100.32
October 29, 20100.45
October 15, 20100.38
September 30, 20100.3
September 15, 20100.32
August 31, 20100.31
August 13, 20100.32
July 30, 20100.31
July 15, 20100.38
June 30, 20100.41
June 15, 20100.74
May 28, 20100.8
May 14, 20100.81
April 30, 20100.83
April 15, 20100.8
March 31, 20100.55
March 15, 20100.54
February 26, 20100.49
February 12, 20100.54
January 29, 20100.56
January 15, 20100.54
December 31, 20090.24
December 15, 20090.16
November 30, 20090.15
November 13, 20090.12
October 30, 20090.11
October 15, 20090.17
September 30, 20090.18
September 15, 20090.11
August 31, 20090.09
August 14, 20090.18
July 31, 20090.18
July 15, 20090.46
June 30, 20090.68
June 15, 20090.69
May 29, 20090.48
May 15, 20090.55
April 30, 20090.29
April 15, 20090.29
March 31, 20090.3
March 13, 20090.37
February 27, 20090.38
February 13, 20090.37
January 30, 20090.41
January 15, 20090.42
December 31, 20080.4
December 15, 20080.42
November 28, 20080.37
November 14, 20080.47
October 31, 20080.43
October 15, 20080.41
September 30, 20080.42
September 15, 20080.4
August 29, 20080.39
August 15, 20080.45
July 31, 20080.43
December 11, 20070.16
November 27, 20070.09
November 9, 20070.19
October 26, 20070.08
October 10, 20070.39
September 25, 20070.05
September 11, 20070.63
August 10, 20070.77
July 10, 20070.94
June 12, 20071.35
May 10, 20071.23
April 10, 20071.27
March 12, 20071.04
February 12, 20070.76
January 9, 20070.72
December 12, 20060.67
November 10, 20060.37
October 10, 20060.3
September 12, 20060.35
August 10, 20060.37
July 11, 20060.25
June 12, 20060.29
May 10, 20060.19
April 10, 20060.11
March 10, 20060.17
February 10, 20060.16
January 10, 20060.24
December 12, 20050.09
November 10, 20050.01
October 11, 20050.04
September 12, 20050.48
August 10, 20053.85

Institutional Ownership History (%)

This the Institutional Ownership History of AtriCure IncPeter Lynch prefers to buy companies with low institutional ownership.

Date Institutional Ownership
April 30, 201595
March 31, 201591
February 28, 201589
January 31, 201592
December 31, 201486
November 30, 201490
October 31, 201490
September 30, 201489
August 31, 201487
July 31, 201489
June 30, 201489
May 31, 201490
April 30, 201490
March 31, 201472
February 28, 201468
January 31, 201479
December 31, 201370
November 30, 201378
October 31, 201378
September 30, 201381
August 31, 201378
July 31, 201378
June 30, 201317
May 31, 201370
April 30, 201370
March 31, 201350
February 28, 201367
January 31, 201369
December 31, 201275
November 30, 201270
October 31, 201271
September 30, 201269
August 31, 201269
July 31, 201269
June 30, 201267
May 31, 201266
April 30, 201266
March 31, 201269
February 29, 201271
January 31, 201271
December 31, 201170
November 30, 201170
October 31, 201170
September 30, 201167
August 31, 201167
July 31, 201162
June 30, 201161
May 31, 201161
April 30, 201158
March 31, 20111
February 28, 201155
January 31, 201147
December 31, 201045
November 30, 201045
October 31, 201041
September 30, 201040
August 31, 201024
July 31, 201027
June 30, 201029
May 31, 201030
April 30, 201025
March 31, 201025
February 28, 201032
January 31, 201026
December 31, 200927
November 30, 200927
October 31, 200928
September 30, 200926
August 31, 200926
July 31, 200935
June 30, 200933
May 31, 200933
April 30, 200937
March 31, 200938
February 28, 200938
January 31, 200945
December 31, 200845
November 30, 200845
October 31, 200845
September 30, 200846
August 31, 200846
July 31, 200846
June 30, 200845
May 31, 200845
April 30, 200845
March 31, 200846
February 29, 200846
January 31, 200846

Insider ownership (%)

This is the historical insider ownership of AtriCure Inc. It is usually better to buy companies with large insider ownership. The company insiders' interest are more aligned with external shareholders in this case.

Date Insider Ownership
April 30, 20157
March 31, 20157
February 28, 20157
January 31, 20156
December 31, 20145
November 30, 20146
October 31, 20146
September 30, 20146
August 31, 20146
July 31, 20146
June 30, 20146
May 31, 20146
March 31, 201410
February 28, 201410
January 31, 201410
December 31, 20139
November 30, 20139
October 31, 20139
September 30, 20139
August 31, 20139
July 31, 20139
June 30, 20139
May 31, 20139
April 30, 20139
March 31, 20139
January 31, 20139
November 30, 20128
October 31, 20128
September 30, 20128
August 31, 201212
July 31, 20129
June 30, 20129
May 31, 20129
April 30, 201210
March 31, 20129
February 29, 20129
January 31, 20129
December 31, 20119
November 30, 20119
October 31, 20119
September 30, 20119
August 31, 20119
July 31, 20119
June 30, 20119
May 31, 20119
April 30, 20119
March 31, 20119
February 28, 20119
January 31, 20118
December 31, 20108
November 30, 20108
October 31, 20108
September 30, 20108
August 31, 20108
July 31, 20108
June 30, 20108
May 31, 20108
April 30, 20108
March 31, 20108
February 28, 20108
January 31, 20108
December 31, 20098
November 30, 20098
October 31, 20098
September 30, 200912
August 31, 200912
July 31, 200912
June 30, 200911
May 31, 200911
April 30, 20097
March 31, 20097
February 28, 20097
January 31, 20095
December 31, 20085
November 30, 20084
October 31, 20084
September 30, 20084
August 31, 20084
July 31, 20084
June 30, 20084
May 31, 20084
April 30, 200810
March 31, 200818
February 29, 200815
January 31, 200816
December 31, 200716
November 30, 200716
October 31, 200716
September 30, 200716
August 31, 200716
July 31, 200716
June 30, 200716
May 31, 200719
April 30, 200719
March 31, 200719
February 28, 200719
January 31, 200719
December 31, 200620
November 30, 200619
October 31, 200619
September 30, 200619
June 30, 200619
May 31, 200619
April 30, 200619
March 31, 200615
February 28, 200615
January 31, 200615
December 31, 200514
November 30, 200514
October 31, 200514
September 30, 200514
August 31, 200514
July 31, 200515

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Michael H. CarrelN/A312,7071.13%2015-03-02
Karen P. RobardsDirector288,3281.05%2015-05-06
Dr. Donald C. Harrison,M.D.Director198,7410.72%2011-02-23
Mr. David J. DrachmanPresident and CEO146,0000.53%2012-09-12
Mr. Douglas J. SeithCOO124,1880.45%2015-05-18
Norman R. Weldon,PhDDirector122,3680.44%2005-08-04
Mr. M. Andrew WadeVP and CFO99,2770.36%2015-05-14
Julie A. PitonVP Fin & Admin & CFO96,5100.35%2012-02-17
Salvatore PriviteraVP Engineering & Product Dev72,9560.26%2011-07-29
Michael D. HoovenDirector70,5490.26%2015-03-30

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value
Wellington Management Company LLP   Premium Plus1,878,2452015-03-316.620.0138,486,000
Fidelity Management and Research Company   Premium Plus1,860,0002015-03-316.560.0138,111,000
Adage Capital Partners Gp LLC   Premium Plus1,800,0002015-03-316.350.0936,882,000
Fidelity® Select Medical Equip & Systems1,280,0002015-03-314.511.2026,227,200
RS Investment Management Co. LLC Premium1,174,8302015-03-314.140.2124,072,000
NorthPointe Capital LLC   Premium Plus959,9252015-03-313.382.1319,669,000
Cortina Asset Management LLC   Premium Plus921,9482015-03-313.250.8218,891,000
Millennium Management LLC   Premium Plus826,9522015-03-312.920.0316,944,000
Vanguard Group, Inc.   Premium Plus825,8362015-03-312.910.0016,922,000
Tamarack Capital Management, LLC   Premium Plus800,0002015-03-312.822.1616,392,000

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