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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 (%)Short Interest (Shares in Mil)
August 31, 201714.164.53
August 15, 201713.474.31
July 31, 201713.154.21
July 14, 201714.84.73
June 30, 201714.034.49
June 15, 201712.774.08
May 31, 201712.273.92
May 15, 201712.153.89
April 28, 201711.543.69
April 13, 201712.413.97
March 31, 201712.544.01
March 15, 201713.54.32
February 28, 201717.135.33
February 15, 201717.255.37
January 31, 201720.326.33
January 13, 201720.656.43
December 30, 201620.246.30
December 15, 201620.056.24
November 30, 201620.046.24
November 15, 201621.116.57
October 31, 201619.636.11
October 14, 201620.526.39
September 30, 201619.946.21
September 15, 201620.586.41
August 31, 201622.547.02
August 15, 201622.296.94
July 29, 201623.817.42
July 15, 201625.17.82
June 30, 201625.527.95
June 15, 201628.78.94
May 31, 201630.089.37
May 13, 201632.210.03
April 29, 201632.1210.00
April 15, 201633.0310.29
March 31, 201634.5410.76
March 15, 201636.3111.31
February 29, 201640.7611.39
February 12, 201640.4511.30
January 29, 201640.4811.31
January 15, 201642.2311.80
December 31, 201545.9812.85
December 15, 201548.2213.47
November 30, 201547.2313.20
November 13, 201547.0813.16
October 30, 201544.3312.39
October 15, 201545.8612.82
September 30, 201544.9412.56
September 15, 201539.6411.08
August 31, 201533.389.33
August 14, 201528.748.03
July 31, 201529.868.34
July 15, 201526.737.47
June 30, 201526.627.44
June 15, 201532.249.01
May 29, 201527.787.76
May 15, 201526.637.44
April 30, 201525.977.26
April 15, 201525.647.17
March 31, 201527.087.57
March 13, 201529.058.12
February 27, 201535.559.40
February 13, 201537.8310.00
January 30, 201536.29.57
January 15, 201539.210.37
December 31, 201435.299.33
December 15, 201430.948.18
November 28, 201428.17.43
November 14, 201426.477.00
October 31, 201426.226.93
October 15, 201428.547.55
September 30, 201424.346.44
September 15, 201423.356.18
August 29, 201423.176.13
August 15, 201427.237.20
July 31, 201426.657.05
July 15, 2014266.88
June 30, 201425.136.65
June 13, 201421.095.58
May 30, 201417.594.65
May 15, 201419.045.04
April 30, 201416.984.49
April 15, 201416.444.35
March 31, 201415.434.08
March 14, 201416.984.49
February 28, 201424.53.72
February 14, 201422.213.37
January 31, 201420.543.12
January 15, 201415.932.42
December 31, 20138.591.30
December 13, 20136.410.97
November 29, 20138.321.26
November 15, 20138.791.33
October 31, 20138.931.35
October 15, 20138.651.31
September 30, 20138.771.33
September 13, 20139.751.48
August 30, 20139.881.50
August 15, 20139.581.45
July 31, 201312.571.91
July 15, 201311.741.78
June 28, 20138.611.31
June 14, 20136.490.98
May 31, 20133.080.47
May 15, 20132.240.34
April 30, 20132.910.44
April 15, 20133.960.60
March 28, 20132.110.29
March 15, 20131.980.27
February 28, 20132.020.28
February 15, 20131.610.22
January 31, 20131.760.24
January 15, 20131.720.24
December 31, 20121.450.20
December 14, 20120.110.02
November 30, 20120.130.02
November 15, 20120.330.05
October 31, 20120.850.12
October 15, 20120.020.00

Institutional Ownership History (%)

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

Date Institutional Ownership (%)Institutional Ownership (Shares in Mil)
June 30, 201727.529.22
March 31, 201756.8219.05
December 31, 201659.5319.72
September 30, 201659.8919.59
June 30, 201652.6317.29
March 31, 201651.7116.73
December 31, 201554.5217.47
September 30, 201562.1418.17
June 30, 201552.5116.46
March 31, 201554.9316.95
December 31, 201450.6815.36
September 30, 201453.3815.86
June 30, 201442.5812.44
March 31, 201430.218.70
December 31, 201332.299.11
September 30, 201326.037.17
June 30, 201344.7512.20
March 31, 201311.563.04
December 31, 201240.4110.55

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 (%)Insider Ownership (Shares in Mil)
June 30, 20174.361.46
May 31, 20174.361.46
April 30, 20174.361.46
September 30, 20153.681.16
August 31, 20153.61.13
July 31, 20153.621.13
June 30, 20153.621.13
May 31, 20153.551.11
April 30, 20153.621.11
March 31, 20153.621.11
February 28, 20153.791.15
January 31, 20153.831.16
December 31, 20146.11.85
November 30, 20144.521.34
October 31, 20144.571.36
September 30, 20144.581.36
August 31, 20144.921.44
July 31, 20145.041.47
June 30, 20145.041.47
May 31, 20145.061.48

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Mr. Leslie KohnChief Technology Officer892,6292.69%2016-12-16
Dr. Feng-Ming (Fermi) Wang, PhDCEO272,5520.82%2016-12-16
Mr. George LaplanteCFO91,0320.27%2016-12-16
Dr. Didier LeGall, PhDN/A53,3800.16%2014-12-09
Mr. Andrew W. VerhalenN/A50,7200.15%2016-12-16
Dr. Chenming C. Hu, PhDN/A27,002less than 0.1%2016-12-16
Mr. Christopher DayVP, Marketing21,024less than 0.1%2017-03-13
Mr. Christopher B. PaisleyDirector10,893less than 0.1%2017-03-01
D. Jeffrey RichardsonN/A10,545less than 0.1%2016-12-16
Yen-Lung ChenVice President, Sales9,338less than 0.1%2017-03-13

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value($1000)
Blue Ridge CapHldgsLLC/BluRdgCapOSHldgs Premium1,633,0002016-12-314.931.1188,394
State Street Corp   Premium Plus542,9152016-12-311.64N/A29,388
Eagle Asset Management, Inc.   Premium Plus818,0432016-12-312.470.2944,280
Delaware Management Business Trust   Premium Plus498,2112016-12-311.500.0526,968
Van Berkom and Associates Inc   Premium Plus917,7032016-12-312.771.9949,675
D. E. Shaw & Co LP   Premium Plus516,4302016-12-311.560.0527,954
Vanguard Group Inc   Premium Plus1,980,4572016-12-315.980.01107,201
BlackRock Fund Advisors   Premium Plus960,0962016-12-312.900.0151,970
Pinnacle Associates Inc   Premium Plus468,6342016-12-311.420.5125,367
Susquehanna Financial Group, LLLP   Premium Plus458,6682016-09-301.400.0233,762
Morgan Stanley & Co Inc   Premium Plus365,4092016-09-301.120.0426,898
Allianz Global Investors   Premium Plus370,6752016-12-311.120.0420,065
Coatue Management LLC   Premium Plus866,4002016-12-312.620.5646,898
TIDE POINT CAPITAL MANAGEMENT, LP   Premium Plus550,0002016-09-301.682.2240,486
Deutsche Bank AG   Premium Plus395,9042016-12-311.200.0421,429
Vanguard Small Cap Index716,5102017-02-282.160.0642,238
Vanguard Total Stock Mkt Idx689,1162017-02-282.080.0140,623
iShares Russell 2000 (AU)627,0612017-03-161.800.0935,103
Eagle Small Cap Growth Fund547,9762016-12-311.650.7029,662
Vanguard Small Cap Growth Index Fund394,7062017-02-281.190.1323,268

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