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Ambarella Inc (AMBA) Ownership Data

Short Interest History (%)

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

Date Short Interest
August 14, 201528.74
July 31, 201529.86
July 15, 201526.73
June 30, 201526.62
June 15, 201532.24
May 29, 201527.78
May 15, 201526.63
April 30, 201525.97
April 15, 201525.64
March 31, 201527.08
March 13, 201529.05
February 27, 201535.55
February 13, 201537.83
January 30, 201536.2
January 15, 201539.2
December 31, 201435.29
December 15, 201430.94
November 28, 201428.1
November 14, 201426.47
October 31, 201426.22
October 15, 201428.54
September 30, 201424.34
September 15, 201423.35
August 29, 201423.17
August 15, 201427.23
July 31, 201426.65
July 15, 201426
June 30, 201425.13
June 13, 201421.09
May 30, 201417.59
May 15, 201419.04
April 30, 201416.98
April 15, 201416.44
March 31, 201415.43
March 14, 201416.98
February 28, 201424.5
February 14, 201422.21
January 31, 201420.54
January 15, 201415.93
December 31, 20138.59
December 13, 20136.41
November 29, 20138.32
November 15, 20138.79
October 31, 20138.93
October 15, 20138.65
September 30, 20138.77
September 13, 20139.75
August 30, 20139.88
August 15, 20139.58
July 31, 201312.57
July 15, 201311.74
June 28, 20138.61
June 14, 20136.49
May 31, 20133.08
May 15, 20132.24
April 30, 20132.91
April 15, 20133.96
March 28, 20132.11
March 15, 20131.98
February 28, 20132.02
February 15, 20131.61
January 31, 20131.76
January 15, 20131.72
December 31, 20121.45
December 14, 20120.11
November 30, 20120.13
November 15, 20120.33
October 31, 20120.85
October 15, 20120.02

Institutional Ownership History (%)

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

Date Institutional Ownership
June 30, 201555
March 31, 201555
December 31, 201451
September 30, 201453
June 30, 201442
March 31, 201430
December 31, 201332
September 30, 201326
June 30, 201345
March 31, 201312
December 31, 201238

Insider ownership (%)

This is the historical insider ownership of Ambarella 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
July 31, 20154
June 30, 20154
May 31, 20154
April 30, 20154
March 31, 20154
February 28, 20154
January 31, 20154
December 31, 20146
November 30, 20145
October 31, 20145
September 30, 20145
August 31, 20145
July 31, 20145
June 30, 20145
May 31, 20145

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Mr. Les KohnCTO826,0502.64%2015-06-16
Dr. Feng-Ming (Fermi) Wang, PhDCEO148,7200.47%2015-06-16
Dr. Didier LeGall, PhDExecutive Vice President53,3800.17%2014-12-09
Andrew VerhalenDirector44,6880.14%2015-06-16
Mr. George LaplanteCFO30,4430.1%2015-06-16
Yen-Lung ChenVP of Business Development8,014less than 0.1%2015-06-16
Mr. Christopher DayVP of Marketing7,605less than 0.1%2015-06-16
Dr. Chenming C. Hu, PhDDirector4,861less than 0.1%2015-06-16
Mr. Christopher B. PaisleyDirector4,861less than 0.1%2015-06-15
Mr. Lip-Bu TanDirector3,861less than 0.1%2015-06-16

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value($1000)
Coatue Management LLC   Premium Plus1,915,0322015-03-316.210.69144,986
Vanguard Group, Inc.   Premium Plus1,560,8282015-03-315.060.01118,170
Lord, Abbett & Co LLC   Premium Plus927,5442015-03-313.010.1870,225
Fidelity Management and Research Company   Premium Plus841,7002015-03-312.730.0163,725
BlackRock Fund Advisors   Premium Plus802,2312015-03-312.600.0160,737
Pyramis Global Advisors, LLC   Premium Plus607,2602015-03-311.970.0845,976
Vanguard Small Cap Index563,6492015-06-301.830.1057,881
Lord Abbett Developing Growth Fund549,0122015-03-311.781.1741,566
Fidelity® Blue Chip Growth Fund534,9002015-05-311.730.2348,253
Vanguard Total Stock Mkt Idx524,3302015-06-301.700.0153,843

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