Switch to:

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)
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)
December 31, 201697.9925.97
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)
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/A1,881,8407.09%2015-12-31
Mr. Mark R. KubicekN/A145,0000.55%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 BodorN/A16,070less than 0.1%2017-02-13
Donald G. KrantzN/A14,124less than 0.1%2016-03-14
Mr. Arthur R. (Rich) BakerChief Technology Officer13,535less 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)
Janus Capital Management LLC   Premium Plus1,157,2782016-09-304.380.0969,333
Brown Capital Management, LLC   Premium Plus3,694,3452016-12-3113.942.77189,705
Riverbridge Partners LLC   Premium Plus1,902,8852016-09-307.202.28114,002
Fiera Capital Corporation   Premium Plus651,0192016-09-302.460.2239,003
GW&K Investment Management, LLC   Premium Plus715,4012016-09-302.710.8042,860
New York State Common Retirement Fund   Premium Plus636,4952016-09-302.410.0538,132
TimesSquare Capital Management, LLC   Premium Plus1,449,5002016-09-305.480.5686,840
Vanguard Group Inc   Premium Plus1,929,3132016-09-307.300.01115,584
BlackRock Fund Advisors   Premium Plus1,654,9352016-09-306.260.0299,147
Disciplined Growth Investors Inc   Premium Plus970,6002016-12-313.661.1449,840
Northern Trust Investments N A   Premium Plus543,1352016-09-302.050.0132,539
J.P. Morgan Investment Management Inc   Premium Plus650,8282016-09-302.460.0238,991
Arrowpoint Asset Management, LLC   Premium Plus903,9302016-09-303.420.9854,154
Stephens Inv Mgmt Group LLC   Premium Plus614,5782016-12-312.320.8831,559
Brown Capital Management Small Company1,909,8242017-01-317.212.96100,266
iShares Core S&P Small-Cap (AU)986,1002017-02-154.020.1955,912
Janus Triton Fund821,5912016-12-313.100.5842,189
JPMorgan Small Cap Equity Fund768,8112016-12-312.900.6839,478
Vanguard Explorer Fund586,9522016-12-312.210.2630,140
Vanguard Small Cap Index539,6342017-01-312.040.0428,331

Add Notes, Comments

If you want to ask a question or report a bug, please create a support ticket.

Get WordPress Plugins for easy affiliate links on Stock Tickers and Guru Names | Earn affiliate commissions by embedding GuruFocus Charts
GuruFocus Affiliate Program: Earn up to $400 per referral. ( Learn More)
FEEDBACK