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Abiomed Inc (ABMD)Ownership Data

Short Interest History (%)

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

Date Short Interest
April 15, 201512.47
March 31, 201512.81
March 13, 201513.91
February 27, 201514.36
February 13, 201515.82
January 30, 201515.4
January 15, 201515.56
December 31, 201415.43
December 15, 201417.35
November 28, 201418.6
November 14, 201423.02
October 31, 201427.15
October 15, 201427.59
September 30, 201433.84
September 15, 201432.4
August 29, 201431.86
August 15, 201432.2
July 31, 201431.36
July 15, 201431.59
June 30, 201430.3
June 13, 201432.45
May 30, 201431.88
May 15, 201431.84
April 30, 201429.51
April 15, 201428.99
March 31, 201424.67
March 14, 201417.21
February 28, 201416.71
February 14, 201418.64
January 31, 201417.73
January 15, 201415.82
December 31, 201316.22
December 13, 201316.55
November 29, 201317.67
November 15, 201319.29
October 31, 201321.44
October 15, 201320.68
September 30, 201319.93
September 13, 201318.95
August 30, 201319.83
August 15, 201319.17
July 31, 201319.34
July 15, 201320.22
June 28, 201320.21
June 14, 201317.12
May 31, 201318.28
May 15, 201322.69
April 30, 201324.05
April 15, 201323.84
March 28, 201326.11
March 15, 201326.9
February 28, 201327.77
February 15, 201327.08
January 31, 201325.28
January 15, 201324.06
December 31, 201227.15
December 14, 201224.33
November 30, 201224.12
November 15, 201222.87
October 31, 201228.08
October 15, 201228.6
September 28, 201227.09
September 14, 201226.44
August 31, 201224.8
August 15, 201225.45
July 31, 201223.97
July 13, 201223.84
June 29, 201222.52
June 15, 201224.43
May 31, 201221.66
May 15, 201222.51
April 30, 201221.7
April 13, 201220.43
March 30, 201220.21
March 15, 201216.69
February 29, 201216.27
February 15, 201214.36
January 31, 20127.24
January 13, 20126.21
December 30, 20116.11
December 15, 20116.88
November 30, 20117.43
November 15, 20117.49
October 31, 20117.24
October 14, 20117.29
September 30, 20117.13
September 15, 20117.21
August 31, 20116.95
August 15, 20116.53
July 29, 20115.38
July 15, 20115.47
June 30, 20116.49
June 15, 20116.48
May 31, 20117.3
May 13, 20116.42
April 29, 20116.82
April 15, 20115.54
March 31, 20115.12
March 15, 20114.9
February 28, 20114.72
February 15, 20114.86
January 31, 20116.53
January 14, 20116.38
December 31, 20105.83
December 15, 20107.68
November 30, 20108.96
November 15, 20109.3
October 29, 201010.08
October 15, 201010.64
September 30, 201011.28
September 15, 201011.43
August 31, 201012.21
August 13, 201012.36
July 30, 201011.96
July 15, 201011.61
June 30, 201011.13
June 15, 201010.22
May 28, 201010.67
May 14, 201010.23
April 30, 20109.89
April 15, 201010.17
March 31, 201010.01
March 15, 201010.5
February 26, 201010.65
February 12, 201010.02
January 29, 20109.8
January 15, 201010.5
December 31, 200910.5
December 15, 200910.87
November 30, 200911.07
November 13, 200911.14
October 30, 200910.33
October 15, 200910.33
September 30, 20098.91
September 15, 20099.39
August 31, 20099.45
August 14, 20099.69
July 31, 20099.67
July 15, 200911.38
June 30, 200910.93
June 15, 200910.65
May 29, 20099.58
May 15, 200910.49
April 30, 20099.82
April 15, 20099.88
March 31, 200910.21
March 13, 20099.18
February 27, 20098.63
February 13, 20098.5
January 30, 20097.42
January 15, 20097.15
December 31, 20087.13
December 15, 20088.95
November 28, 20089
November 14, 20089.85
October 31, 200811.84
October 15, 200811.63
September 30, 200813.47
September 15, 200814.25
August 29, 200812.8
August 15, 200813.24
July 31, 200813.86
July 15, 200814.79
June 30, 200813.82
June 13, 200814.76
May 30, 200810.97
May 15, 200810.18
April 30, 200810.26
April 15, 200810.19
March 31, 20089.78
March 14, 200810.95
February 29, 200810.85
February 15, 200810.21
January 31, 20089.29
January 15, 20089.62
December 31, 20078.89
December 11, 20079.54
November 27, 20079.48
November 9, 20079.08
October 26, 20078.8
October 10, 20078.98
September 25, 20079.5
September 11, 20079.19
August 10, 200710.46
July 10, 20079.84
June 12, 20079.68
May 10, 20078.55
April 10, 20077.63
March 12, 200710.07
February 12, 20078.66
January 9, 20078.6
December 12, 20068.45
November 10, 20067.55
October 10, 20067.68
September 12, 20067.6
August 10, 20067.22
July 11, 20067.06
June 12, 20067.34
May 10, 20066.74
April 10, 20066.97
March 10, 20065.88
February 10, 20065.33
January 10, 20065.01
December 12, 20054.43
November 10, 20054.35
October 11, 20054.98
September 12, 20054.96
August 10, 20054.3
July 12, 20053.83
June 10, 20054.78
May 10, 20056.71
April 12, 20056.82
March 10, 20056.82
February 10, 20055.92
January 11, 20055.74
December 10, 20045.6
November 10, 20045.48
October 12, 20046.23
September 10, 20047.15
August 10, 20047.53
July 12, 20047.15
June 9, 20047.18
May 11, 20047.1
April 12, 20047.22
March 10, 20046.91
February 10, 20047.01
January 12, 20047.89
December 10, 20038.88
November 11, 20038.89
October 10, 20039.89
September 10, 200310.32
August 12, 200310.25
July 10, 200310.33
June 10, 200311.15
May 12, 200311.43
April 10, 200311.21
March 11, 200310.19
February 11, 20039.86
January 10, 20039.44
December 10, 20029.43
November 12, 20029.39
October 10, 20029.7
September 10, 200210.16
August 12, 200210.22
July 10, 200210.44
June 11, 200211.36
May 10, 200211.46
April 10, 200214.31
March 12, 200216.57
February 12, 200218.72
January 10, 200218.11
December 11, 200116.45
November 12, 200117.22
October 10, 200118.12
September 5, 200119.9
August 10, 200118.8
July 10, 200118.99
June 12, 200116.73
May 10, 200115.87
April 9, 200115.69
March 12, 200115.46
February 12, 200114.43
January 9, 200110.57
December 12, 20009.5
November 10, 20007.81
October 10, 20007.76
September 12, 20008.2
August 10, 20006.76
July 11, 20004.56
June 12, 20003.75
May 10, 20004.03
April 11, 20004.19
March 10, 20005.67
February 10, 20007.09
January 11, 200011.42
December 10, 19994.43
November 10, 19991.87
October 12, 19990.8
September 10, 19991.01
August 10, 19991.01
July 12, 19991.14
June 10, 19991.1
May 11, 19991.14
April 12, 19991.62
March 10, 19991.61
February 9, 19990.95
January 8, 19990.96
December 8, 19980.93
November 6, 19980.93
October 8, 19980.88
September 8, 19980.89
August 7, 19982.6
July 8, 19982.54
June 8, 19982.95
May 8, 19982.57
April 7, 19982.35
March 6, 19982.52
February 6, 19980.52
January 8, 19982.07
December 8, 19971.66
November 7, 19970.84
October 8, 19970.23
September 8, 19970.24
August 8, 19970.21
July 8, 19970.24
June 6, 19970.19
May 8, 19970.15
April 8, 19970.1
March 7, 19970.11
February 7, 19970.15
January 8, 19970.03
December 6, 19960.05
November 8, 19960.02
October 8, 19960.04
September 6, 19960.03
August 8, 19960.04
July 8, 19960.02
June 7, 19960.06
May 8, 19960.02
April 8, 19960.06
March 8, 19960.03
February 8, 19960.02
January 8, 19960.04
December 8, 19950.1
November 8, 19950.05
October 6, 19950.03
September 8, 19950.02
August 8, 19950.12
July 7, 19950.09
June 8, 19950.15
May 8, 19950.02
April 6, 19950.02
March 8, 19950.02
February 8, 19950.04
January 6, 19950.03

Institutional Ownership History (%)

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

Date Institutional Ownership
February 28, 2014100
January 31, 201499
November 30, 201398
October 31, 201399
September 30, 201398
August 31, 201399
July 31, 201399
May 31, 201398
April 30, 201399
March 31, 201311
June 30, 201298
December 31, 201194
November 30, 201194
October 31, 201194
September 30, 201194
August 31, 201194
July 31, 201179
June 30, 201175
May 31, 201179
April 30, 201173
March 31, 201173
February 28, 201173
January 31, 201174
December 31, 201073
November 30, 201074
October 31, 201071
September 30, 201071
August 31, 201071
July 31, 201073
June 30, 201071
May 31, 201071
April 30, 201072
March 31, 201070
February 28, 201068
January 31, 201061
December 31, 200962
November 30, 200963
October 31, 200964
September 30, 200963
August 31, 200963
July 31, 200963
June 30, 200962
May 31, 200960
April 30, 200964
March 31, 200963
February 28, 200963
January 31, 200964
December 31, 200865
November 30, 200865
October 31, 200866
September 30, 200871
August 31, 200871
July 31, 200871
June 30, 200875
May 31, 200875
April 30, 200875
March 31, 200853
February 29, 200853
January 31, 200853

Insider ownership (%)

This is the historical insider ownership of Abiomed 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
March 31, 20157
February 28, 20157
January 31, 20157
December 31, 20147
November 30, 20147
October 31, 20147
September 30, 20147
August 31, 20147
July 31, 20147
June 30, 20147
May 31, 20147
March 31, 20147
February 28, 20147
January 31, 20147
December 31, 20137
November 30, 20137
October 31, 20137
September 30, 20137
August 31, 20137
July 31, 20137
June 30, 20137
May 31, 20137
April 30, 20137
March 31, 20137
January 31, 20136
November 30, 20126
October 31, 20126
September 30, 20126
August 31, 20126
July 31, 20126
June 30, 20126
May 31, 20126
April 30, 20126
March 31, 20126
February 29, 20126
January 31, 20126
December 31, 20116
November 30, 20116
October 31, 20116
September 30, 20116
August 31, 20116
July 31, 20116
June 30, 20116
May 31, 20116
April 30, 20116
March 31, 20116
February 28, 20116
January 31, 20116
December 31, 20106
November 30, 20106
October 31, 20106
September 30, 20106
August 31, 20106
July 31, 20106
June 30, 20106
May 31, 20106
April 30, 20106
March 31, 20106
February 28, 20106
January 31, 20106
December 31, 20096
November 30, 20096
October 31, 20096
September 30, 20096
August 31, 20096
July 31, 20096
June 30, 20096
May 31, 20096
April 30, 20096
March 31, 20096
February 28, 20096
January 31, 20096
December 31, 20086
November 30, 20086
October 31, 20086
September 30, 20086
August 31, 20086
July 31, 20086
June 30, 20086
May 31, 20086
April 30, 20085
March 31, 20085
February 29, 20085
January 31, 20085
December 31, 20075
November 30, 20075
October 31, 20075
September 30, 20075
August 31, 20075
July 31, 20075
June 30, 20075
May 31, 20075
April 30, 20075
March 31, 20075
February 28, 20075
January 31, 20076
December 31, 20066
November 30, 20066
October 31, 20069
September 30, 20069
June 30, 20069
May 31, 200614
April 30, 200614
March 31, 200614
February 28, 200614
January 31, 200614
December 31, 200514
November 30, 200514
October 31, 200514
September 30, 200514
August 31, 200514
July 31, 200514
June 30, 200514
May 31, 200524
April 30, 200527
March 31, 200528
February 28, 200528
January 31, 200528
December 31, 200429
November 30, 200429
October 31, 200429
September 30, 200429
August 31, 200429
July 31, 200429
June 30, 200429
May 31, 200430
April 30, 200430
March 31, 200431
February 29, 200431

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
David M. Lederman,PhDDirector781,2791.9%2005-02-28
Paul B. FiremanN/A399,7560.97%2005-03-31
Mr. Henri A. TermeerDirector305,8780.74%2014-08-13
Mr. Michael R. MinoguePresident, CEO, Chairman279,4630.68%2015-03-23
Obrien John FN/A182,9020.44%2006-05-11
Dr. David M. WeberCOO127,0850.31%2015-03-23
Mr. Martin P. SutterDirector125,3960.31%2014-12-31
Mr. William J. BoltSVP, QA and Regulatory Affairs94,8760.23%2015-03-23
Dr. W. Gerald Austen, M.D.Director83,3410.2%2015-02-24
Mr. Michael G. HowleyVP, Global Sales & Marketing75,5830.18%2014-10-31

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value
PRIMECAP Management Company5,687,5902014-12-3113.850.22216,470,000
Essex Woodlands Health Ventures3,150,0002014-12-317.6738.03119,889,000
Jackson Square Partners, LLC3,024,7592014-12-317.360.45115,122,000
PrimeCap Odyssey Aggressive Growth Fund2,634,1732014-12-316.411.57100,256,624
Vanguard Group, Inc.2,509,1142014-12-316.110.0195,497,000
Palo Alto Investors, LLC2,460,1242014-12-315.995.5093,632,000
BlackRock Fund Advisors2,209,2122014-12-315.380.0284,083,000
Delaware Management Business Trust2,064,8802014-12-315.030.1778,589,000
PrimeCap Odyssey Growth Fund1,914,8002014-12-314.661.4672,877,288
Blair William & Co1,876,5832014-12-314.570.1271,423,000

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