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Omeros Corp (OMER) Ownership Data

Short Interest History (%)

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

Date Short Interest (%)Short Interest (Shares in Mil)
May 31, 201723.878.62
May 15, 201723.918.63
April 28, 201724.588.88
April 13, 201725.019.03
March 31, 201725.369.28
March 15, 201725.559.34
February 28, 201724.268.87
February 15, 201724.558.98
January 31, 201725.169.20
January 13, 201724.789.06
December 30, 201625.539.33
December 15, 201625.359.27
November 30, 201626.119.55
November 15, 201626.659.75
October 31, 201626.659.75
October 14, 201624.89.07
September 30, 201624.268.87
September 15, 201625.099.17
August 31, 201625.479.31
August 15, 2016279.87
July 29, 201626.369.64
July 15, 201625.079.17
June 30, 201624.218.86
June 15, 201624.148.83
May 31, 201623.938.75
May 13, 201623.228.49
April 29, 201622.818.34
April 15, 201623.028.42
March 31, 201624.688.74
March 15, 201625.018.86
February 29, 201626.199.28
February 12, 201625.18.89
January 29, 201626.499.38
January 15, 201627.139.61
December 31, 201526.719.46
December 15, 201528.7510.19
November 30, 201527.639.79
November 13, 201528.9310.25
October 30, 201529.4410.43
October 15, 201530.7410.89
September 30, 201531.3911.12
September 15, 201528.3210.03
August 31, 201528.3810.05
August 14, 201527.839.86
July 31, 201527.769.83
July 15, 201528.7910.20
June 30, 201528.3610.05
June 15, 201527.889.87
May 29, 201528.189.98
May 15, 201526.069.23
April 30, 201524.278.60
April 15, 201524.218.58
March 31, 201526.648.41
March 13, 201525.848.16
February 27, 201519.516.16
February 13, 201519.076.02
January 30, 201517.975.68
January 15, 201517.845.64
December 31, 201418.295.78
December 15, 201419.236.07
November 28, 201419.526.17
November 14, 201420.596.50
October 31, 201420.646.52
October 15, 201420.636.52
September 30, 201421.246.71
September 15, 201420.016.32
August 29, 201419.146.04
August 15, 201419.416.13
July 31, 201419.16.03
July 15, 201417.685.58
June 30, 201418.445.82
June 13, 201418.935.98
May 30, 201418.555.86
May 15, 201417.685.58
April 30, 201418.045.70
April 15, 201418.335.79
March 31, 201423.235.49
March 14, 201422.95.41
February 28, 201422.625.34
February 14, 201422.165.23
January 31, 201422.125.22
January 15, 201423.375.52
December 31, 201325.536.03
December 13, 201327.366.46
November 29, 201326.116.16
November 15, 201322.75.36
October 31, 201318.414.35
October 15, 201319.964.71
September 30, 201328.056.62
September 13, 201326.076.16
August 30, 201326.266.20
August 15, 201325.816.09
July 31, 201326.366.22
July 15, 201326.746.31
June 28, 201326.616.28
June 14, 201326.266.20
May 31, 201324.695.83
May 15, 201323.925.65
April 30, 201322.195.24
April 15, 201315.723.71
March 28, 201312.052.44
March 15, 201314.412.91
February 28, 201313.822.80
February 15, 201313.262.68
January 31, 201311.082.24
January 15, 201310.222.07
December 31, 20127.591.54
December 14, 20128.841.79
November 30, 20128.831.79
November 15, 20128.381.70
October 31, 20127.291.48
October 15, 20126.511.32
September 28, 20126.351.29
September 14, 20126.721.36
August 31, 20126.441.30
August 15, 20126.371.29
July 31, 20126.071.23
July 13, 20126.531.32
June 29, 201281.62
June 15, 20122.650.54
May 31, 20122.330.47
May 15, 20122.30.47
April 30, 20122.250.45
April 13, 20122.240.45
March 30, 20122.230.43
March 15, 20120.350.07
February 29, 20120.290.06
February 15, 20120.30.06
January 31, 20120.380.07
January 13, 20120.380.07
December 30, 20110.450.09
December 15, 20110.460.09
November 30, 20110.550.11
November 15, 20110.620.12
October 31, 20110.610.12
October 14, 20110.720.14
September 30, 20110.760.15
September 15, 20110.910.18
August 31, 20111.130.22
August 15, 20111.310.26
July 29, 20111.410.27
July 15, 20111.580.31
June 30, 201120.39
June 15, 20116.671.30
May 31, 20115.941.16
May 13, 20115.591.09
April 29, 20115.41.05
April 15, 20114.830.94
March 31, 20114.140.81
March 15, 20114.320.81
February 28, 20114.340.81
February 15, 20114.070.76
January 31, 20113.70.69
January 14, 20113.60.67
December 31, 20103.490.65
December 15, 20103.220.60
November 30, 20103.440.64
November 15, 20103.350.63
October 29, 20103.570.67
October 15, 20103.690.69
September 30, 201040.75
September 15, 20104.160.78
August 31, 20104.420.83
August 13, 20103.740.70
July 30, 20103.950.74
July 15, 20104.010.75
June 30, 20105.060.94
June 15, 20101.470.27
May 28, 20101.370.26
May 14, 20101.580.30
April 30, 20101.620.30
April 15, 20101.660.31
March 31, 20101.320.25

Institutional Ownership History (%)

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

Date Institutional Ownership (%)Institutional Ownership (Shares in Mil)
March 31, 201738.5316.90
December 31, 201631.713.91
September 30, 201650.9721.87
June 30, 201653.8821.16
March 31, 201654.921.48
December 31, 201561.2623.31
September 30, 201561.7423.18
June 30, 201569.0226.15
March 31, 201557.3821.71
December 31, 201445.615.60
September 30, 201442.5814.49
June 30, 201442.8314.56
March 31, 201439.4113.36
December 31, 201334.1210.37
September 30, 201335.6310.64
June 30, 201344.3313.23
March 31, 201327.577.15
December 31, 201229.127.54
September 30, 201230.357.86
June 30, 201236.998.32
March 31, 201216.323.65
December 31, 201110.62.38
September 30, 20119.332.08
June 30, 201111.252.52
March 31, 201113.623.01
December 31, 201015.633.43
September 30, 201015.233.27
June 30, 201013.052.80
March 31, 20108.811.89
December 31, 200911.242.39

Insider ownership (%)

This is the historical insider ownership of Omeros Corp. 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)
May 31, 20175.412.38
April 30, 20175.432.38
March 31, 20175.542.38
February 28, 20175.542.38
January 31, 20175.542.38
December 31, 20165.552.38
November 30, 20165.122.20
October 31, 20165.592.20
September 30, 20165.592.20
August 31, 20165.62.20
July 31, 20165.622.20
June 30, 20165.622.20
May 31, 20165.752.20
April 30, 20165.752.20
March 31, 20165.712.19
February 29, 20165.762.19
January 31, 20165.762.19
December 31, 20155.712.19
November 30, 20155.452.07
October 31, 20155.462.07
September 30, 20155.462.07
August 31, 20155.472.07
July 31, 20155.432.05
June 30, 20155.442.06
May 31, 20155.422.05
April 30, 20155.432.05
March 31, 20155.432.05
February 28, 20156.032.05
January 31, 20156.032.05
December 31, 20145.791.97
November 30, 20145.932.02
October 31, 20145.952.02
September 30, 20145.851.99
August 31, 20145.851.99
July 31, 20145.881.99
June 30, 20145.881.99
May 31, 20145.861.99
March 31, 20148.861.97
February 28, 20148.861.97
January 31, 20148.891.97
December 31, 20138.891.97
November 30, 20138.41.87
October 31, 20138.41.87
September 30, 20138.291.84
August 31, 20138.291.84
July 31, 20138.291.84
June 30, 20138.291.84
May 31, 20138.311.85
April 30, 20138.311.85
March 31, 20138.311.85
January 31, 20138.311.85
November 30, 20127.531.67
October 31, 20127.531.67
September 30, 20127.531.67
August 31, 20127.561.68
July 31, 20127.561.68
June 30, 20127.561.68
May 31, 20127.491.66
April 30, 20127.491.66
March 31, 20127.491.66
February 29, 20127.441.65
January 31, 20127.441.65
December 31, 20117.441.65
November 30, 20117.441.65
October 31, 20117.441.65
September 30, 20117.441.65
August 31, 20117.441.65
July 31, 20118.541.89
June 30, 20118.541.89
May 31, 20118.541.89
April 30, 20118.361.85
March 31, 20118.361.85
February 28, 20118.61.85
January 31, 20118.61.85
December 31, 20108.61.85
November 30, 20108.61.85
October 31, 20108.61.85
September 30, 20108.611.85
August 31, 20108.511.83
July 31, 20108.541.83
June 30, 20108.541.83
May 31, 20108.351.79
April 30, 20108.381.79
March 31, 20108.381.79
February 28, 20108.41.79
January 31, 20108.41.79
December 31, 20098.41.79
November 30, 20098.41.79
October 31, 20098.391.79

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Dr. Gregory A. Demopulos,M.D.Chairman, CEO & President1,884,9855.51%2016-12-05
Dr. Peter A. Demopulos,M.D.N/A185,1820.54%2015-09-04
Ms. Marcia S. KelbonVP Patent and General Counsel166,6010.49%2016-10-12
Dr. Leroy E. Hood,M.D.,Ph.N/A54,3900.16%2010-07-01
Mr. Thomas J. CableDirector46,0670.13%2016-08-12
Mr. Ray AspiriN/A40,3060.12%2013-10-24
Arnold C. HanishN/A2,400less than 0.1%2013-01-03

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value($1000)
State Street Corp   Premium Plus943,1212016-12-312.20N/A9,362
Tocqueville Asset Management L.P.   Premium Plus826,1642016-12-311.930.108,196
American Financial Group Inc   Premium Plus715,1012016-12-311.670.687,094
Brown Investment Advisory Incorporated   Premium Plus587,5082016-09-301.370.026,557
BMO Asset Management Corp.   Premium Plus1,972,2152016-09-304.600.1922,010
Ingalls & Snyder LLC   Premium Plus5,085,9492016-09-3011.853.1756,759
Vanguard Group Inc   Premium Plus1,647,5232016-12-313.84N/A16,344
BlackRock Fund Advisors   Premium Plus1,701,2872016-09-303.96N/A18,986
Davidson D A & Co   Premium Plus270,2452016-09-300.630.083,015
Northern Trust Investments N A   Premium Plus487,5712016-09-301.14N/A5,441
Geode Capital Management, LLC   Premium Plus289,0892016-09-300.67N/A3,226
Cormorant Asset Management, LLC   Premium Plus975,0002016-12-312.271.309,672
Stifel Nicolaus Investment Advisors   Premium Plus326,6922016-09-300.760.033,638
UBS Securities LLC   Premium Plus360,4902016-09-300.84N/A4,023
RTW INVESTMENTS, LLC   Premium Plus259,0392016-12-310.600.972,570
Vanguard Total Stock Mkt Idx893,1702017-01-312.08N/A8,655
iShares Russell 2000 (AU)771,4972017-02-172.040.028,502
iShares Nasdaq Biotechnology594,9892017-02-171.580.086,557
Vanguard Extended Market Index Fund478,3772017-01-311.110.014,635
Great American Life Insurance Company429,0612015-12-311.130.036,749

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