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Proto Labs Inc (PRLB) Ownership Data

Short Interest History (%)

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

Date Short Interest (%)Short Interest (Shares in Mil)
September 29, 201723.294.23
September 15, 201723.894.34
August 31, 201724.674.48
August 15, 201725.264.59
July 31, 201725.174.57
July 14, 201724.694.49
June 30, 201724.54.45
June 15, 201725.334.60
May 31, 201724.844.51
May 15, 201724.784.50
April 28, 201725.274.59
April 13, 201724.454.44
March 31, 201723.744.31
March 15, 201718.293.95
February 28, 201718.524.00
February 15, 201719.654.25
January 31, 201720.724.48
January 13, 201721.614.67
December 30, 201621.44.62
December 15, 2016214.54
November 30, 201620.364.40
November 15, 201620.664.47
October 31, 201622.634.89
October 14, 201623.195.01
September 30, 201622.124.78
September 15, 201622.194.80
August 31, 201621.484.64
August 15, 201620.234.37
July 29, 201622.864.94
July 15, 201625.55.51
June 30, 201625.445.50
June 15, 201624.385.27
May 31, 201623.615.10
May 13, 201623.215.02
April 29, 201624.355.26
April 15, 201625.345.48
March 31, 201625.335.48
March 15, 201625.215.87
February 29, 201621.565.02
February 12, 201623.455.46
January 29, 201623.295.42
January 15, 201623.215.40
December 31, 201522.735.29
December 15, 201522.595.26
November 30, 201522.085.14
November 13, 201521.865.09
October 30, 201521.174.93
October 15, 201520.424.75
September 30, 201518.744.36
September 15, 201518.664.34
August 31, 201519.024.43
August 14, 201518.154.22
July 31, 201516.633.87
July 15, 201516.553.85
June 30, 201515.833.68
June 15, 201516.443.83
May 29, 201516.663.88
May 15, 201516.23.77
April 30, 201515.393.58
April 15, 201516.213.77
March 31, 201517.374.04
March 13, 201517.413.94
February 27, 201518.74.23
February 13, 201518.44.16
January 30, 201518.124.10
January 15, 201519.124.33
December 31, 201418.334.15
December 15, 201418.254.13
November 28, 201417.313.92
November 14, 201417.173.88
October 31, 201417.43.94
October 15, 201414.333.24
September 30, 201412.442.81
September 15, 201412.172.75
August 29, 201412.472.82
August 15, 201413.373.03
July 31, 201415.783.57
July 15, 201415.853.59
June 30, 201413.443.04
June 13, 201412.472.82
May 30, 201411.022.49
May 15, 201411.562.62
April 30, 201410.552.39
April 15, 201411.812.67
March 31, 201411.132.52
March 14, 201412.662.41
February 28, 201414.632.79
February 14, 201416.083.06
January 31, 201417.363.31
January 15, 201416.293.10
December 31, 201315.672.98
December 13, 201315.913.03
November 29, 201314.922.84
November 15, 201316.173.08
October 31, 201315.953.04
October 15, 201314.562.77
September 30, 201315.873.02
September 13, 201315.172.89
August 30, 201315.72.99
August 15, 201315.162.89
July 31, 201314.392.74
July 15, 201316.023.05
June 28, 201313.722.61
June 14, 201311.332.16
May 31, 201310.652.03
May 15, 20139.311.77
April 30, 20138.131.55
April 15, 20137.51.43
March 28, 20135.441.04
February 15, 201339.462.00
January 31, 201333.571.70
January 15, 201323.551.19
December 31, 201219.430.99
December 14, 201221.961.11
November 30, 201221.531.09
November 15, 201223.591.20
October 31, 201223.841.21
October 15, 201225.711.30
September 28, 201227.021.37
September 14, 201227.741.41
August 31, 201230.261.54
August 15, 201234.651.76
July 31, 201239.111.98
July 13, 201241.412.10
June 29, 201223.891.21
June 15, 201210.550.54
May 31, 20128.020.41
May 15, 20127.230.37
April 30, 20124.910.25
April 13, 20124.780.24
March 30, 20121.530.08
March 15, 20121.130.06
February 29, 20120.990.05

Institutional Ownership History (%)

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

Date Institutional Ownership (%)Institutional Ownership (Shares in Mil)
March 31, 201796.3925.53
December 31, 201698.8826.21
December 31, 201599.6326.10
June 30, 201594.2624.46
March 31, 201597.7525.31
September 30, 201495.6124.68
June 30, 201497.0124.91
March 31, 201490.0123.05
December 31, 201391.923.48
September 30, 201388.5122.51
June 30, 201381.220.54
March 31, 201373.1218.41
December 31, 201271.5817.77
September 30, 201235.618.65
June 30, 201225.526.11
March 31, 201220.144.82

Insider ownership (%)

This is the historical insider ownership of Proto Labs 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, 20178.592.28
May 31, 20178.62.28
April 30, 20178.632.29
March 31, 20178.642.29
February 28, 20178.472.24
January 31, 20178.492.24
December 31, 20168.492.24
November 30, 20168.492.24
October 31, 20168.492.24
September 30, 20168.492.24
August 31, 20168.472.24
July 31, 20168.492.24
June 30, 20168.492.24
May 31, 20168.462.23
April 30, 20168.52.23
March 31, 20168.52.23
February 29, 20168.512.23
January 31, 20168.382.19
December 31, 20158.52.23
November 30, 20158.382.19
October 31, 20158.382.19
September 30, 20158.382.19
August 31, 20158.382.19
July 31, 20159.132.39
June 30, 201511.052.89
May 31, 201511.052.89
April 30, 201511.132.88
March 31, 201511.142.88
February 28, 201511.142.88
January 31, 201511.12.87
December 31, 201416.844.35
November 30, 201411.973.09
October 31, 201411.963.09
September 30, 201412.013.09
August 31, 201412.013.09
July 31, 201412.013.09
June 30, 201412.063.09
May 31, 201412.063.09

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Mr. Lawrence J. LukisN/A1,881,8407.07%2015-12-31
Mr. Mark R. KubicekN/A145,0000.54%2012-10-02
Margaret A. LoftusN/A66,0120.25%2014-03-13
Victoria M. HoltPresident and CEO41,9930.16%2017-02-13
Mr. John A. WayN/A22,675less than 0.1%2017-02-13
Mr. John B. TumeltyVP/GM & Managing Director-EMEA16,195less than 0.1%2017-02-13
Robert BodorVP/General Manager-Americas16,070less than 0.1%2017-02-13
Donald G. KrantzN/A14,124less than 0.1%2016-03-14
Mr. Arthur R. (Rich) BakerN/A13,535less than 0.1%2017-02-13
Mr. Sven A. WehrweinN/A12,228less than 0.1%2016-05-19

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value($1000)
BROWN CAPITAL MANAGEMENT LLC   Premium Plus3,807,8882017-06-303.140.14256,080
BlackRock Inc.   Premium Plus2,880,3292017-06-300.010.11193,702
VANGUARD GROUP INC   Premium Plus2,176,0512017-06-300.010.08146,339
RIVERBRIDGE PARTNERS LLC   Premium Plus1,967,8652017-06-302.540.07132,339
Arrowpoint Asset Management, LLC   Premium Plus1,428,1372017-06-301.190.0596,042
DISCIPLINED GROWTH INVESTORS INC /MN   Premium Plus965,2152017-06-301.350.0464,911
TimesSquare Capital Management, LLC   Premium Plus806,3752017-06-300.350.0354,229
JPMORGAN CHASE & CO   Premium Plus768,6762017-06-300.010.0351,694
Stephens Investment Management Group LLC   Premium Plus705,5492017-06-301.140.0347,448
NEW YORK STATE COMMON RETIREMENT FUND   Premium Plus638,2692017-06-300.060.0242,924
STATE STREET CORP   Premium Plus595,7482017-06-300.000.0240,063
Mairs and Power Premium508,2772017-06-300.410.0234,182
Bank of New York Mellon Corp   Premium Plus498,1982017-06-300.010.0233,504
Capital Research Global Investors   Premium Plus466,7002017-06-300.010.0231,386
Handelsbanken Fonder AB   Premium Plus466,0362017-06-300.800.0231,341
Conestoga Capital Advisors, LLC   Premium Plus448,8182017-06-301.570.0230,183
NORTHERN TRUST CORP   Premium Plus403,4192017-06-300.010.0227,130
DIMENSIONAL FUND ADVISORS LP   Premium Plus390,6972017-06-300.010.0126,274
LORD, ABBETT & CO. LLC   Premium Plus317,4862017-06-300.070.0121,351
ROYAL BANK OF CANADA   Premium Plus269,3752017-06-300.010.0118,116

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