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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
January 15, 201519.12
December 31, 201418.33
December 15, 201418.25
November 28, 201417.31
November 14, 201417.17
October 31, 201417.4
October 15, 201414.33
September 30, 201412.44
September 15, 201412.17
August 29, 201412.47
August 15, 201413.37
July 31, 201415.78
July 15, 201415.85
June 30, 201413.44
June 13, 201412.47
May 30, 201411.02
May 15, 201411.56
April 30, 201410.55
April 15, 201411.81
March 31, 201411.13
March 14, 201412.66
February 28, 201414.63
February 14, 201416.08
January 31, 201417.36
January 15, 201416.29
December 31, 201315.67
December 13, 201315.91
November 29, 201314.92
November 15, 201316.17
October 31, 201315.95
October 15, 201314.56
September 30, 201315.87
September 13, 201315.17
August 30, 201315.7
August 15, 201315.16
July 31, 201314.39
July 15, 201316.02
June 28, 201313.72
June 14, 201311.33
May 31, 201310.65
May 15, 20139.31
April 30, 20138.13
April 15, 20137.5
March 28, 20135.44
March 15, 20134.11
February 28, 20133.61
February 15, 201339.46
January 31, 201333.57
January 15, 201323.55
December 31, 201219.43
December 14, 201221.96
November 30, 201221.53
November 15, 201223.59
October 31, 201223.84
October 15, 201225.71
September 28, 201227.02
September 14, 201227.74
August 31, 201230.26
August 15, 201234.65
July 31, 201239.11
July 13, 201241.41
June 29, 201223.89
June 15, 201210.55
May 31, 20128.02
May 15, 20127.23
April 30, 20124.91
April 13, 20124.78
March 30, 20121.53
March 15, 20121.13
February 29, 20120.99

Institutional Ownership History (%)

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

Date Institutional Ownership
December 31, 201499
November 30, 201496
October 31, 201495
September 30, 201497
August 31, 201496
March 31, 201499
February 28, 201498
January 31, 201499
December 31, 201398
November 30, 201395
October 31, 201391
September 30, 201382
August 31, 201380
July 31, 201380
June 30, 201370
May 31, 201370
April 30, 201370
March 31, 201372
February 28, 201362
January 31, 201361
December 31, 201232
November 30, 201231
October 31, 201235
September 30, 201227
August 31, 201226
July 31, 201225
June 30, 201222
May 31, 201221
April 30, 201221
March 31, 20125
February 29, 20122

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
December 31, 201417
November 30, 201412
October 31, 201412
September 30, 201412
August 31, 201412
July 31, 201412
June 30, 201412
May 31, 201412

Top Direct Holders

HolderPositionShares% of Shares
Outstanding
Report Date
Mr. Lawrence J. LukisChairman of the BOD2,806,84010.87%2014-02-19
Mr. Mark R. KubicekExecutive Vice President145,0000.56%2012-10-02
Margaret A. LoftusDirector66,0120.26%2014-03-13
Victoria M. HoltPresident and CEO15,928less than 0.1%2014-02-13
Mr. Sven A. WehrweinN/A9,848less than 0.1%2014-05-20
Douglas A. KingsleyDirector9,330less than 0.1%2013-02-21
John B. GoodmanDirector7,048less than 0.1%2014-10-03
Ms. Jacqueline D. SchneiderVP of Sales & Customer Service4,270less than 0.1%2014-07-01
Douglas W. KohrsN/A4,068less than 0.1%2014-05-20
Donald G. KrantzCOO3,480less than 0.1%2014-02-13

Top Fund Holders

HolderSharesReport Date% of Shares
Outstanding
% of Total
Assets Managed
Market Value
Wells Capital Management Inc.1,786,7442014-09-306.920.21123,275,000
Kornitzer Capital Management Inc1,747,9252014-09-306.771.38120,607,000
Riverbridge Partners LLC1,710,9712014-12-316.632.14114,909,000
Buffalo Small Cap Fund1,352,9002014-09-305.242.8993,350,100
Vanguard Group, Inc.1,321,9632014-09-305.120.0191,215,000
Brown Capital Management, LLC993,4492014-09-303.851.2168,548,000
Franklin Advisers, Inc.984,7822014-09-303.810.0567,950,000
Stephens Inv Mgmt Group LLC718,8952014-09-302.781.5049,604,000
Wasatch Advisors Inc.692,1362014-09-302.680.5047,757,000
Brown Capital Management Small Company689,8792014-12-312.671.7646,332,274

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