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Merck & Co Inc (MRK)Ownership Data

Short Interest History (%)

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

Date Short Interest
January 15, 20150.98
December 31, 20140.97
December 15, 20140.98
November 28, 20140.72
November 14, 20140.77
October 31, 20140.78
October 15, 20140.83
September 30, 20140.79
September 15, 20140.84
August 29, 20140.92
August 15, 20140.95
July 31, 20141.14
July 15, 20141.16
June 30, 20141.17
June 13, 20141.14
May 30, 20141
May 15, 20141.05
April 30, 20141.04
April 15, 20141.11
March 31, 20140.98
March 14, 20140.98
February 28, 20140.92
February 14, 20140.92
January 31, 20140.8
January 15, 20140.81
December 31, 20130.85
December 13, 20131.01
November 29, 20131.04
November 15, 20130.85
October 31, 20130.97
October 15, 20131.09
September 30, 20131.13
September 13, 20131.13
August 30, 20131.28
August 15, 20131.68
July 31, 20131.98
July 15, 20132.53
June 28, 20132.46
June 14, 20132.73
May 31, 20133.09
May 15, 20130.77
April 30, 20130.88
April 15, 20130.95
March 28, 20130.71
March 15, 20130.86
February 28, 20130.91
February 15, 20130.73
January 31, 20130.7
January 15, 20130.73
December 31, 20120.6
December 14, 20120.83
November 30, 20120.78
November 15, 20120.84
October 31, 20120.89
October 15, 20120.76
September 28, 20120.72
September 14, 20120.82
August 31, 20120.79
August 15, 20120.95
July 31, 20120.86
July 13, 20120.97
June 29, 20120.85
June 15, 20120.77
May 31, 20120.7
May 15, 20120.56
April 30, 20120.62
April 13, 20120.63
March 30, 20120.53
March 15, 20120.63
February 29, 20120.76
February 15, 20120.81
January 31, 20120.93
January 13, 20121.17
December 30, 20111.01
December 15, 20111
November 30, 20111.01
November 15, 20111
October 31, 20110.95
October 14, 20111.13
September 30, 20111.25
September 15, 20111.41
August 31, 20111.19
August 15, 20110.97
July 29, 20110.76
July 15, 20110.76
June 30, 20110.73
June 15, 20110.83
May 31, 20110.88
May 13, 20110.98
April 29, 20110.78
April 15, 20110.68
March 31, 20110.67
March 15, 20110.55
February 28, 20110.52
February 15, 20110.52
January 31, 20110.5
January 14, 20110.7
December 31, 20100.68
December 15, 20100.78
November 30, 20100.69
November 15, 20100.58
October 29, 20100.65
October 15, 20100.73
September 30, 20100.82
September 15, 20100.9
August 31, 20100.89
August 13, 20100.86
July 30, 20100.98
July 15, 20101.18
June 30, 20101.21
June 15, 20101.15
May 28, 20100.77
May 14, 20100.59
April 30, 20100.74
April 15, 20100.58
March 31, 20100.73
March 15, 20100.72
February 26, 20100.69
February 12, 20100.72
January 29, 20100.86
January 15, 20100.81
December 31, 20090.74
December 15, 20091
November 30, 20091.76
November 13, 20092.25
October 30, 20099.79
October 15, 20099.26
September 30, 20098.5
September 15, 20098.15
August 31, 20098.12
August 14, 20097.62
July 31, 20097.87
July 15, 20097.47
June 30, 20096.94
June 15, 20096.36
May 29, 20095.4
May 15, 20094.67
April 30, 20094.35
April 15, 20093.04
March 31, 20092.65
March 13, 20092.03
February 27, 20091.52
February 13, 20091.48
January 30, 20091.1
January 15, 20091.24
December 31, 20081.22
December 15, 20081.11
November 28, 20081
November 14, 20080.9
October 31, 20080.9
October 15, 20080.91
September 30, 20080.87
September 15, 20080.96
August 29, 20080.97
August 15, 20080.94
July 31, 20080.95
July 15, 20081.02
June 30, 20080.91
June 13, 20080.83
May 30, 20080.81
May 15, 20080.96
April 30, 20080.74
April 15, 20080.98
March 31, 20081
March 14, 20080.88
February 29, 20080.84
February 15, 20080.89
January 31, 20080.65
January 15, 20080.97
December 31, 20070.96
December 11, 20071.03
November 27, 20071.17
November 9, 20071.02
October 26, 20071.1
October 10, 20070.94
September 25, 20071.05
September 11, 20070.89
August 10, 20070.95
July 10, 20071
June 12, 20071.05
May 10, 20071.04
April 10, 20070.86
March 12, 20070.93
February 12, 20071.03
January 9, 20071.63
December 12, 20061.48
November 10, 20061.65
October 10, 20061.72
September 12, 20061.71
August 10, 20061.38
July 11, 20061.44
June 12, 20061.1
May 10, 20061.05
April 10, 20061.23
March 10, 20061.08
February 10, 20060.98
January 10, 20061.34
December 12, 20051.14
November 10, 20051.15
October 11, 20051
September 12, 20050.94
August 10, 20050.91
July 12, 20050.95
June 10, 20050.64
May 10, 20050.84
April 12, 20051.04
March 10, 20051.07
February 10, 20050.77
January 11, 20050.85
December 10, 20040.85
November 10, 20040.86
October 12, 20040.68
September 10, 20040.62
August 10, 20040.69
July 12, 20040.64
June 9, 20040.67
May 11, 20040.65
April 12, 20040.67
March 10, 20040.62
February 10, 20040.56
January 12, 20040.58
December 10, 20030.48
November 11, 20030.6
October 10, 20030.69
September 10, 20030.66
August 12, 20030.67
July 10, 20030.87
June 10, 20030.73
May 12, 20030.86
April 10, 20030.84
March 11, 20030.83
February 11, 20030.82
January 10, 20031
December 10, 20020.87
November 12, 20020.93
October 10, 20020.94
September 10, 20020.77
August 12, 20021.02
July 10, 20020.87
June 11, 20021
May 10, 20021.14
April 10, 20020.93
March 12, 20020.8
February 12, 20020.78
January 10, 20020.7
December 11, 20010.61
November 12, 20010.7
October 10, 20010.74
September 5, 20010.69
August 10, 20010.9
July 10, 20010.88
June 12, 20010.73
May 10, 20010.69
April 9, 20010.69
March 12, 20010.63
February 12, 20010.75
January 9, 20010.82
December 12, 20000.94
November 10, 20000.98
October 10, 20000.71
September 12, 20000.59
August 10, 20000.62
July 11, 20000.6
June 12, 20000.62
May 10, 20000.57
April 11, 20000.53
March 10, 20000.62
February 10, 20000.45
January 11, 20000.51
December 10, 19990.55
November 10, 19990.63
October 12, 19990.6
September 10, 19990.53
August 10, 19990.54
July 12, 19990.66
June 10, 19990.64
May 11, 19990.58
April 12, 19990.71
March 10, 19990.76
February 9, 19990.68
January 8, 19990.77
December 8, 19980.86
November 6, 19980.91
October 8, 19980.89
September 8, 19980.79
August 7, 19980.76
July 8, 19980.8
June 8, 19980.75
May 8, 19980.64
April 7, 19980.69
March 6, 19980.76
February 6, 19980.71
January 8, 19980.67
December 8, 19970.75
November 7, 19970.72
October 8, 19970.75
September 8, 19970.75
August 8, 19970.74
July 8, 19970.82
June 6, 19970.88
May 8, 19970.87
April 8, 19970.82
March 7, 19970.85
February 7, 19970.92
January 8, 19970.94
December 6, 19960.81
November 8, 19960.9
October 8, 19960.75
September 6, 19960.82
August 8, 19960.75
July 8, 19960.57
June 7, 19960.67
May 8, 19960.7
April 8, 19960.66
March 8, 19960.55
February 8, 19960.68
January 8, 19960.67
December 8, 19950.87
November 8, 19950.73
October 6, 19951
September 8, 19950.87
August 8, 19950.77
July 7, 19950.99
June 8, 19951.22
May 8, 19951.17
April 6, 19951.17
March 8, 19951.16
February 8, 19950.99
January 6, 19950.93

Institutional Ownership History (%)

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

Date Institutional Ownership
December 31, 201476
November 30, 201477
October 31, 201477
September 30, 201477
August 31, 201477
July 31, 201477
June 30, 201477
May 31, 201478
April 30, 201478
March 31, 201476
February 28, 201477
January 31, 201476
December 31, 201376
November 30, 201376
October 31, 201377
September 30, 201376
August 31, 201377
July 31, 201377
June 30, 201374
May 31, 201370
April 30, 201371
March 31, 201372
February 28, 201372
January 31, 201372
December 31, 201273
November 30, 201273
October 31, 201272
September 30, 201272
August 31, 201273
July 31, 201273
June 30, 201272
May 31, 201270
April 30, 201270
March 31, 201273
February 29, 201275
January 31, 201275
December 31, 201176
November 30, 201176
October 31, 201176
September 30, 201175
August 31, 201175
July 31, 201176
June 30, 201175
May 31, 201175
April 30, 201176
March 31, 201175
February 28, 201175
January 31, 201176
December 31, 201075
November 30, 201076
October 31, 201077
September 30, 201077
August 31, 201078
July 31, 201077
June 30, 201077
May 31, 201080
April 30, 201077
March 31, 201077
February 28, 201078
January 31, 201036
December 31, 200913
November 30, 20097
October 31, 20094
September 30, 200981
August 31, 200981
July 31, 200975
June 30, 200975
May 31, 200996
April 30, 200995
March 31, 200994
February 28, 200994
January 31, 200994
December 31, 200873
November 30, 200873
October 31, 200875

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Kenneth C. FrazierChairman, President & CEO351,482less than 0.1%2015-01-09
Peter S. KimExe V-P & Pres, MRL189,609less than 0.1%2013-02-25
Peter N. KelloggExe V-P & CFO149,554less than 0.1%2014-02-24
Bruce N. KuhlikExe V-P & Gen Counsel128,468less than 0.1%2014-12-08
Mr. Richard T. ClarkN/A108,211less than 0.1%2011-02-28
Willie A. DeeseExe V-P & Pres. MMD106,222less than 0.1%2014-06-27
Mirian M. Graddick-WeirExe V-P, HR93,564less than 0.1%2014-07-07
J. Chris ScaletN/A79,829less than 0.1%2012-04-24
Mr. Erskine B. BowlesN/A73,540less than 0.1%2012-05-10
Raul E. KohanExe V-P & Pres, Animal Health70,990less than 0.1%2011-12-31

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value
Capital World Investors174,907,0402014-09-306.112.9110,368,489,000
Vanguard Group, Inc.153,249,0902014-09-305.360.719,084,606,000
Wellington Management Company LLP149,956,9972014-09-305.242.458,889,451,000
State Street Corp126,142,1202014-09-304.410.807,477,707,000
BlackRock Fund Advisors88,473,4332014-09-303.090.775,244,704,000
VA CollegeAmerica Income Fund of America50,113,6402014-12-311.763.112,845,953,616
VA CollegeAmerica Washington Mutual48,586,4002014-12-311.703.782,759,221,656
Vanguard Total Stock Mkt Idx48,061,6302014-12-311.690.712,729,419,968
Northern Trust Investments, N.A.42,855,5532014-09-301.500.792,540,476,000
T. Rowe Price Associates, Inc.42,177,2842014-09-301.470.552,500,269,000

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