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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
January 29, 201640.48
January 15, 201642.23
December 31, 201545.98
December 15, 201548.22
November 30, 201547.23
November 13, 201547.08
October 30, 201544.33
October 15, 201545.86
September 30, 201544.94
September 15, 201539.64
August 31, 201533.38
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
December 31, 201562.41
September 30, 201561.95
June 30, 201552.47
March 31, 201554.97
December 31, 201450.68
September 30, 201453.3
June 30, 201442.42
March 31, 201430.32
December 31, 201332.35
September 30, 201326.06
June 30, 201344.8
March 31, 201311.6
December 31, 201240.43

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
September 30, 20153.68
August 31, 20153.6
July 31, 20153.62
June 30, 20153.62
May 31, 20153.55
April 30, 20153.62
March 31, 20153.62
February 28, 20153.79
January 31, 20153.83
December 31, 20146.1
November 30, 20144.52
October 31, 20144.57
September 30, 20144.58
August 31, 20144.92
July 31, 20145.04
June 30, 20145.04
May 31, 20145.06

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Mr. Les KohnCTO849,5712.65%2015-12-16
Dr. Feng-Ming (Fermi) Wang, PhDCEO193,0250.6%2015-12-16
Dr. Didier LeGall, PhDExecutive Vice President53,3800.17%2014-12-09
Mr. George LaplanteCFO51,6120.16%2015-12-16
Andrew VerhalenDirector46,5350.15%2015-12-16
Dr. Chenming C. Hu, PhDDirector22,817less than 0.1%2015-12-16
Mr. Christopher DayVP, Marketing12,397less than 0.1%2015-12-21
Mr. Christopher B. PaisleyDirector6,708less than 0.1%2015-12-15
D. Jeffrey RichardsonDirector4,693less than 0.1%2015-12-16
Yen-Lung ChenVice President, Sales4,435less than 0.1%2015-12-16

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value($1000)
Vanguard Group Inc   Premium Plus2,376,8182015-09-308.130.01148,765
Wells Capital Management Inc.   Premium Plus1,035,6482015-09-303.540.1264,821
Cadian Capital Management, LLC   Premium Plus821,6842015-09-302.811.8251,429
BlackRock Fund Advisors   Premium Plus740,2332015-09-302.530.0146,331
Vanguard Small Cap Index601,0032015-12-311.880.0633,500
Tennessee Consolidated Retirement System   Premium Plus600,7132015-09-302.050.2337,599
Coatue Management LLC   Premium Plus594,1932015-09-302.030.4137,191
Vanguard Total Stock Mkt Idx549,2872015-12-311.710.0130,617
Arrowstreet Capital Limited Partnership   Premium Plus529,9802015-09-301.810.1633,171
Vanguard Strategic Equity Fund503,9242015-09-301.590.5129,122

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