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Pacific Biosciences of California Inc (PACB) Ownership Data

Short Interest History (%)

This is the historical short interest of Pacific Biosciences of California Inc, as measured by the Short Percentage Of Float.

Date Short Interest
April 30, 201522.31
April 15, 201520.41
March 31, 201517.92
March 13, 201517.54
February 27, 201514.46
February 13, 201513.43
January 30, 201512.77
January 15, 201513.52
December 31, 201413.08
December 15, 201413.37
November 28, 201413.95
November 14, 201414.5
October 31, 201415.4
October 15, 201415.73
September 30, 201416.66
September 15, 201416
August 29, 201415.02
August 15, 201414.67
July 31, 201414.64
July 15, 201414.08
June 30, 201414
June 13, 201414.28
May 30, 201414.15
May 15, 201413.61
April 30, 201413.75
April 15, 201414.58
March 31, 201413.34
March 14, 201412.88
February 28, 201413.11
February 14, 201415.46
January 31, 201415.49
January 15, 201413.98
December 31, 201313.01
December 13, 201313.53
November 29, 201315.2
November 15, 201314.71
October 31, 201313.88
October 15, 201312.47
September 30, 20139.91
September 13, 20137.57
August 30, 20137.64
August 15, 20136.86
July 31, 20136.65
July 15, 20136.99
June 28, 20136.9
June 14, 20136.95
May 31, 20136.77
May 15, 20136.7
April 30, 20137.32
April 15, 20136.23
March 28, 20136.01
March 15, 20135.45
February 28, 20135.35
February 15, 20135.54
January 31, 20135.31
January 15, 20134.09
December 31, 20123.89
December 14, 20123.93
November 30, 20124.95
November 15, 20124.09
October 31, 20124.31
October 15, 20124.51
September 28, 20125.49
September 14, 20126.1
August 31, 20126.1
August 15, 20126.46
July 31, 20126.62
July 13, 20126.63
June 29, 20126.85
June 15, 20126.82
May 31, 20127.64
May 15, 20127.33
April 30, 20127.92
April 13, 20128.99
March 30, 201210.95
March 15, 201211.79
February 29, 201211.27
February 15, 20127.87
January 31, 20127.46
January 13, 20126.35
December 30, 20116.33
December 15, 20116.62
November 30, 20116.84
November 15, 20116.8
October 31, 20116.97
October 14, 20117.02
September 30, 20117.48
September 15, 20119.49
August 31, 20119.47
August 15, 20119.46
July 29, 201110.3
July 15, 20119.44
June 30, 20119.64
June 15, 20117.35
May 31, 20117.25
May 13, 20116.27
April 29, 20116.64
April 15, 20117.86
March 31, 20117.58
March 15, 20118.42
February 28, 20119.34
February 15, 20117.85
January 31, 20116.79
January 14, 20115.17
December 31, 20107.23
December 15, 20105.7
November 30, 20104.59
November 15, 20104.39

Institutional Ownership History (%)

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

Date Institutional Ownership
April 30, 201571
March 31, 201571
February 28, 201570
January 31, 201573
December 31, 201462
November 30, 201455
October 31, 201456
September 30, 201457
August 31, 201462
July 31, 201462
June 30, 201463
May 31, 201464
April 30, 201464
March 31, 201462
February 28, 201461
January 31, 201461
December 31, 201362
November 30, 201356
October 31, 201355
September 30, 201351
August 31, 201350
July 31, 201350
June 30, 201323
May 31, 201349
April 30, 201349
March 31, 201323
February 28, 201342
January 31, 201343
December 31, 201244
November 30, 201243
October 31, 201243
September 30, 201246
August 31, 201246
July 31, 201246
June 30, 201259
May 31, 201259
April 30, 201259
March 31, 201248
February 29, 201246
January 31, 201264
December 31, 201167
November 30, 201167
October 31, 201167
September 30, 201175
August 31, 201176
July 31, 201172
June 30, 201161
May 31, 201154
April 30, 201160
March 31, 201152
February 28, 201137
January 31, 201117
December 31, 20108
November 30, 20107

Insider ownership (%)

This is the historical insider ownership of Pacific Biosciences of California 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
April 30, 20153
March 31, 20153
February 28, 20153
January 31, 20153
December 31, 20143
November 30, 20143
October 31, 20143
September 30, 20143
August 31, 20143
July 31, 20143
June 30, 20143
May 31, 20143
March 31, 20144
February 28, 20144
January 31, 20144
December 31, 20134
November 30, 20134
October 31, 20134
September 30, 20134
August 31, 20134
July 31, 20134
June 30, 20134
May 31, 20134
April 30, 20134
March 31, 20134
January 31, 20134
November 30, 20124
October 31, 20122
September 30, 20122
August 31, 20122
July 31, 20122
June 30, 20121
May 31, 20121
April 30, 20121
March 31, 20121
February 29, 20121
January 31, 20121
December 31, 20111
November 30, 20111
October 31, 20111
September 30, 20111
August 31, 20111
July 31, 20111
June 30, 20111
May 31, 20111

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Michael W. HunkapillerChairman, CEO & President1,800,0002.41%2013-12-11
Hugh C. MartinN/A342,4580.46%2012-02-03
Mr. Michael PhillipsSVP, Research & Development164,1860.22%2015-03-02
Susan E. SiegelN/A65,000less than 0.1%2011-08-10
Susan K. BarnesN/A62,058less than 0.1%2013-03-15
Kevin P. CorcoranSVP, Market Development32,423less than 0.1%2015-03-02
Brian B. DowVP and PAO18,119less than 0.1%2015-03-02

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value
Maverick Capital Ltd Premium6,459,7842014-12-318.740.7950,645,000
MDV Management Company, L.L.C.   Premium Plus5,598,3972014-12-317.5714.8243,891,000
MDV Management Company, L.L.C.   Premium Plus5,598,3972014-12-317.5714.8243,891,000
Seventh MDV Partners, LLC5,598,3972014-12-317.570.0043,891,432
Deerfield Management Co   Premium Plus5,120,7712014-12-316.931.4440,147,000
KPCB HOLDINGS INC3,696,6542014-02-285.580.0024,619,716
Oracle Investment Management Inc   Premium Plus3,230,5182014-12-314.373.3225,327,000
BlackRock Advisors LLC   Premium Plus3,159,2172014-12-314.270.0224,768,000
BlackRock Fund Advisors   Premium Plus2,450,8502014-12-313.320.0019,215,000
Blackstone Group LP   Premium Plus2,411,5562014-12-313.260.0618,907,000
Millennium Management LLC   Premium Plus2,167,0182014-12-312.930.0416,989,000

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