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AcelRx Pharmaceuticals Inc (ACRX) Ownership Data

Short Interest History (%)

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

Date Short Interest (%)Short Interest (Shares in Mil)
March 15, 201713.333.86
February 28, 201712.783.70
February 15, 201712.823.72
January 31, 201712.633.66
January 13, 201712.973.76
December 30, 201613.884.02
December 15, 201613.23.82
November 30, 201613.083.79
November 15, 201612.923.74
October 31, 201613.243.84
October 14, 201613.213.83
September 30, 201613.473.90
September 15, 201614.114.09
August 31, 201614.274.13
August 15, 201615.364.45
July 29, 201615.534.50
July 15, 201615.854.59
June 30, 201615.954.62
June 15, 201612.183.53
May 31, 201612.543.63
May 13, 201612.93.74
April 29, 201612.433.60
April 15, 201613.363.69
March 31, 201613.673.78
March 15, 201614.954.13
February 29, 201615.514.28
February 12, 201615.134.18
January 29, 201614.153.91
January 15, 201614.043.88
December 31, 201514.183.92
December 15, 201515.424.26
November 30, 201516.024.43
November 13, 201517.384.80
October 30, 201518.925.23
October 15, 201519.775.46
September 30, 201519.855.48
September 15, 201519.735.45
August 31, 201520.425.64
August 14, 201521.625.97
July 31, 201526.067.20
July 15, 201526.87.40
June 30, 201532.779.05
June 15, 201534.489.52
May 29, 201536.2310.01
May 15, 201536.179.99
April 30, 201537.0210.22
April 15, 201536.319.70
March 31, 201537.6510.06
March 13, 201534.369.18
February 27, 201534.719.27
February 13, 201533.699.00
January 30, 201533.568.96
January 15, 201533.468.94
December 31, 201432.898.78
December 15, 201433.899.05
November 28, 201433.048.82
November 14, 201432.018.55
October 31, 201430.868.24
October 15, 201433.248.88
September 30, 201436.689.80
September 15, 201434.79.27
August 29, 201433.418.92
August 15, 201432.348.64
July 31, 201433.178.86
July 15, 201429.367.84
June 30, 201425.476.80
June 13, 201421.885.84
May 30, 201424.355.02
May 15, 201424.215.00
April 30, 201423.854.92
April 15, 201422.984.74
March 31, 201424.094.97
March 14, 201423.514.85
February 28, 201423.874.92
February 14, 201424.225.00
January 31, 201422.684.68
January 15, 201436.945.41
December 31, 201338.295.60
December 13, 201336.535.34
November 29, 201332.74.78
November 15, 201331.44.59
October 31, 201324.243.55
October 15, 201322.383.27
September 30, 201320.923.06
September 13, 201321.053.08
August 30, 201320.42.98
August 15, 201323.163.39
July 31, 201322.653.31
July 15, 201321.833.19
June 28, 201316.792.36
June 14, 201316.112.26
May 31, 201314.121.98
May 15, 201310.661.50
April 30, 201310.721.50
April 15, 201310.381.46
March 28, 20139.581.34
March 15, 20139.091.28
February 28, 20138.841.24
February 15, 20138.261.16
January 31, 20135.260.74
January 15, 201323.631.63
December 31, 201223.761.64
December 14, 201218.611.28
November 30, 20127.790.54
November 15, 20120.170.01
October 31, 20120.150.01
October 15, 20120.140.01
September 28, 20120.220.02
September 14, 20120.090.01
August 31, 20120.080.01
August 15, 20120.070.00
July 31, 20120.070.00
July 13, 20120.10.01
June 29, 20120.090.01
June 15, 20120.070.01
May 31, 20120.140.01
May 15, 20120.150.01
April 30, 20120.110.00
April 13, 20120.080.00
March 30, 20120.090.00
March 15, 20120.070.00
February 29, 20120.050.00
February 15, 20120.090.00
January 31, 20120.050.00
January 13, 20120.060.00
December 30, 20110.070.00
December 15, 20110.050.00
November 30, 20110.070.00
November 15, 20110.050.00
October 31, 20110.060.00
October 14, 20110.040.00
September 30, 20110.10.00
September 15, 20110.080.00
August 31, 20110.080.00
August 15, 20110.050.00
July 29, 20110.040.00
July 15, 20110.090.00
June 30, 20110.090.00
June 15, 20110.030.00
May 31, 20110.060.00
May 13, 20110.090.00
April 29, 20110.110.00
April 15, 20110.030.00
March 31, 20110.040.00
March 15, 20110.150.01
February 28, 20110.090.00

Institutional Ownership History (%)

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

Date Institutional Ownership (%)Institutional Ownership (Shares in Mil)
December 31, 201630.113.63
September 30, 201633.2515.09
June 30, 201634.7815.76
March 31, 201655.6425.21
December 31, 201535.7916.17
September 30, 201566.0123.03
June 30, 201545.9620.40
March 31, 201547.2520.95
December 31, 201448.6321.26
September 30, 201447.120.58
June 30, 201486.7537.63
March 31, 201478.5834.04
December 31, 201350.2621.64
September 30, 201342.3618.24
June 30, 201333.2112.44
March 31, 201329.5711.01
December 31, 201269.0125.58
September 30, 201212.342.79
June 30, 201278.7417.82
March 31, 20128.091.62
December 31, 20117.981.61
September 30, 20118.351.62
June 30, 20118.311.61
March 31, 20117.8715.90

Insider ownership (%)

This is the historical insider ownership of AcelRx Pharmaceuticals 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)
February 28, 20172.61.18
January 31, 20172.61.18
December 31, 20162.61.18
November 30, 20162.61.18
October 31, 20162.61.18
September 30, 20162.61.18
August 31, 20162.61.18
July 31, 20162.61.18
June 30, 20162.61.18
May 31, 20162.541.15
April 30, 20162.551.15
March 31, 20162.551.15
February 29, 20162.591.15
January 31, 20162.591.15
December 31, 20152.551.15
November 30, 20152.591.15
October 31, 20152.591.15
September 30, 20152.61.15
August 31, 20152.61.15
July 31, 20152.531.12
June 30, 20152.531.12
May 31, 20152.531.12
April 30, 20152.451.09
March 31, 20152.41.05
February 28, 20152.31.00
January 31, 20152.31.00
December 31, 20142.210.97
November 30, 20142.31.00
October 31, 20142.311.00
September 30, 20142.311.00
August 31, 20142.311.00
July 31, 20142.321.00
June 30, 20142.311.00
May 31, 20142.31.00
March 31, 20145.10.99
February 28, 20145.010.97
January 31, 20144.990.97
December 31, 20134.970.97
November 30, 20134.960.96
October 31, 20134.940.96
September 30, 20134.930.96
August 31, 20134.910.95
July 31, 20134.910.95
June 30, 20134.910.95
May 31, 20134.860.94
April 30, 20134.470.87
March 31, 20134.470.87
January 31, 20134.370.85
November 30, 20124.370.85
October 31, 20124.370.85
September 30, 20124.370.85
August 31, 20124.370.85
July 31, 20124.370.85
June 30, 20124.370.85
May 31, 20124.370.85
April 30, 20124.370.85
March 31, 20124.370.85
February 29, 20124.370.85
January 31, 20124.390.85
December 31, 20114.390.85
November 30, 20114.390.85
October 31, 20114.130.80
September 30, 20114.130.80
August 31, 20114.130.80
July 31, 20114.070.79
June 30, 20114.070.79
May 31, 20114.010.78
April 30, 20114.010.78
March 31, 20114.010.78
February 28, 20114.010.78

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Dr. Pamela Palmer, M.D.,PhDN/A399,0150.88%2015-08-20
Thomas A. SchreckN/A300,9510.66%2011-08-29
Mr. Richard A. KingN/A134,5670.3%2014-03-02
Mark G. EdwardsDirector115,0000.25%2016-05-10
Mr. Adrian AdamsN/A75,0000.17%2013-05-24
Mr. Lawrence G. HamelN/A64,3530.14%2014-07-17
Mr. Howard B. RosenCEO50,0000.11%2016-05-13
Badri DasuN/A22,530less than 0.1%2014-03-02
James H. WelchN/A15,000less than 0.1%2011-09-06
Dr. Richard Afable, M.D.N/A1,000less than 0.1%2014-06-23

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value($1000)
State Street Corp   Premium Plus487,7772016-12-311.08N/A1,268
USAA Investment Management Company   Premium Plus271,7702016-09-300.60N/A1,057
Perceptive Advisors LLC   Premium Plus5,408,7282016-12-3111.93N/A14,063
Palo Alto Investors, LLC   Premium Plus1,032,7152016-12-312.280.152,685
Granahan Investment Management Inc..   Premium Plus613,2312016-12-311.350.051,594
WEALTHTRUST AXIOM LLC   Premium Plus240,0002016-12-310.530.23624
Vanguard Group Inc   Premium Plus1,516,5742016-12-313.35N/A3,943
BlackRock Fund Advisors   Premium Plus1,003,7872016-09-302.21N/A3,905
Northern Trust Investments N A   Premium Plus375,8322016-09-300.83N/A1,462
Bridgeway Capital Management, Inc   Premium Plus281,6502016-09-300.620.021,096
Geode Capital Management, LLC   Premium Plus212,5682016-09-300.47N/A826
Three Arch Management IV LLC5,843,8732016-03-0712.91N/A21,681
Three Arch Management III LLC3,530,5872016-03-077.80N/A13,098
Vanguard Total Stock Mkt Idx732,4812017-01-311.62N/A1,941
iShares Russell 2000 (AU)684,3102017-02-231.770.012,121
Vanguard Extended Market Index Fund404,9342017-01-310.89N/A1,073
iShares Russell 2000 Growth289,5942017-02-230.750.01898
Vanguard Instl Total Stock Market Index245,4302017-01-310.54N/A650
Bridgeway Ultra Small Company Market243,6502016-12-310.540.18633
JNL Multi-Manager Small Cap Growth Fund189,1522016-12-310.420.04492

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