|
Date |
Name |
Title |
Volume |
Trade Price |
Holding Change |
|
5/30/2013
|
LOFTUS MARGARET A
|
Director
|
-10,000
|
$53.83
|
-12.31%
|
|
5/29/2013
|
Gawlick Rainer
|
Director
|
-2,000
|
$53.40
|
-32.00%
|
|
5/10/2013
|
Schneider Jacqueline D.
|
VP Sales & Customer Service
|
-7,000
|
$57.80
|
-84.85%
|
|
5/10/2013
|
Schneider Jacqueline D.
|
VP Sales & Customer Service
|
7,000
|
$4.54
|
560.00%
|
|
5/9/2013
|
Bolton Edward E.
|
Vice President, Culture
|
905
|
$30.58
|
100.56%
|
|
5/9/2013
|
Bolton Edward E.
|
Vice President, Culture
|
-905
|
$54.80
|
-50.14%
|
|
5/3/2013
|
Smith Brian K
|
Director
|
-30,000
|
$55.17
|
-37.42%
|
|
5/2/2013
|
Smith Brian K
|
Director
|
-14,000
|
$51.12
|
-14.87%
|
|
5/1/2013
|
Goodman John B
|
Director
|
2,000
|
$4.27
|
32.00%
|
|
5/1/2013
|
Goodman John B
|
Director
|
-2,000
|
$50.60
|
-24.24%
|
|
4/30/2013
|
Smith Brian K
|
Director
|
-6,461
|
$51.02
|
-6.41%
|
|
4/30/2013
|
Smith Brian K
|
Director
|
-43,539
|
$50.22
|
-30.18%
|
|
4/30/2013
|
Cleveland Bradley A.
|
President and CEO
|
-5,000
|
$50.52
|
-5.00%
|
|
4/10/2013
|
KRANTZ DONALD G
|
Chief Operating Officer
|
-29,650
|
$50.28
|
-68.55%
|
|
4/10/2013
|
KRANTZ DONALD G
|
Chief Operating Officer
|
42,000
|
$7.86
|
3,360.00%
|
|
4/10/2013
|
KRANTZ DONALD G
|
Chief Operating Officer
|
-12,350
|
$51.22
|
-90.81%
|
|
4/1/2013
|
Cleveland Bradley A.
|
President and CEO
|
-5,282
|
$49.30
|
-1.51%
|
|
4/1/2013
|
Cleveland Bradley A.
|
President and CEO
|
-14,718
|
$48.72
|
-4.03%
|
|
3/20/2013
|
Cleveland Bradley A.
|
President and CEO
|
-200,000
|
$45.82
|
-35.39%
|
|
3/20/2013
|
Cleveland Bradley A.
|
President and CEO
|
-22,905
|
$45.88
|
-3.89%
|
|
3/20/2013
|
Cleveland Bradley A.
|
President and CEO
|
-19,499
|
$45.88
|
-100.00%
|
|
3/19/2013
|
Cleveland Bradley A.
|
President and CEO
|
-21,458
|
$46.94
|
-52.39%
|
|
3/19/2013
|
Cleveland Bradley A.
|
President and CEO
|
-25,204
|
$46.94
|
-4.11%
|
|
3/19/2013
|
Cleveland Bradley A.
|
President and CEO
|
-61,593
|
$45.51
|
-9.13%
|
|
3/19/2013
|
Cleveland Bradley A.
|
President and CEO
|
-52,436
|
$45.51
|
-56.15%
|
|
3/19/2013
|
Cleveland Bradley A.
|
President and CEO
|
-1,298
|
$45.11
|
-0.19%
|
|
3/19/2013
|
Cleveland Bradley A.
|
President and CEO
|
-1,107
|
$45.11
|
-1.17%
|
|
3/18/2013
|
KRANTZ DONALD G
|
Chief Operating Officer
|
18,182
|
$1.79
|
1,454.56%
|
|
3/18/2013
|
KRANTZ DONALD G
|
Chief Operating Officer
|
-18,182
|
$46.67
|
-93.57%
|
|
3/15/2013
|
KRANTZ DONALD G
|
Chief Operating Officer
|
29,818
|
$1.79
|
2,385.44%
|
|
3/15/2013
|
KRANTZ DONALD G
|
Chief Operating Officer
|
-4,611
|
$47.84
|
-78.67%
|
|
3/15/2013
|
KRANTZ DONALD G
|
Chief Operating Officer
|
-25,207
|
$46.81
|
-81.13%
|
|
3/6/2013
|
LOFTUS MARGARET A
|
Director
|
-10,000
|
$48.07
|
-10.96%
|
|
3/1/2013
|
Cleveland Bradley A.
|
President and CEO
|
-1,699
|
$46.03
|
-0.25%
|
|
3/1/2013
|
Cleveland Bradley A.
|
President and CEO
|
-1,468
|
$45.17
|
-0.22%
|
|
3/1/2013
|
Cleveland Bradley A.
|
President and CEO
|
-16,833
|
$44.05
|
-2.42%
|
|
2/27/2013
|
Bolton Edward E.
|
Vice President, Culture
|
10,500
|
$16.00
|
945.95%
|
|
2/27/2013
|
Bolton Edward E.
|
Vice President, Culture
|
-10,710
|
$46.13
|
-92.25%
|
|
2/19/2013
|
Smith Brian K
|
Director
|
-7,610
|
$48.00
|
-5.01%
|
|
2/15/2013
|
Tumelty John B.
|
Managing Dir.-Proto Labs, Ltd.
|
-2,417
|
$48.16
|
-100.00%
|
|
2/15/2013
|
LOFTUS MARGARET A
|
Director
|
-10,000
|
$47.12
|
-9.88%
|
|
2/15/2013
|
JUDD JOHN R
|
Chief Financial Officer
|
-1,250
|
$48.16
|
-100.00%
|
|
2/15/2013
|
Schneider Jacqueline D.
|
VP Sales & Customer Service
|
-13,064
|
$47.37
|
-86.63%
|
|
2/15/2013
|
Schneider Jacqueline D.
|
VP Sales & Customer Service
|
-766
|
$48.28
|
-38.00%
|
|
2/15/2013
|
Schneider Jacqueline D.
|
VP Sales & Customer Service
|
-38,170
|
$46.82
|
-71.68%
|
|
2/15/2013
|
Smith Brian K
|
Director
|
-2,390
|
$48.16
|
-1.55%
|
|
2/15/2013
|
Schneider Jacqueline D.
|
VP Sales & Customer Service
|
21,000
|
$5.56
|
494.12%
|
|
2/15/2013
|
Schneider Jacqueline D.
|
VP Sales & Customer Service
|
3,000
|
$4.54
|
240.00%
|
|
2/15/2013
|
Tumelty John B.
|
Managing Dir.-Proto Labs, Ltd.
|
-39,583
|
$47.13
|
-94.25%
|
|
2/15/2013
|
Schneider Jacqueline D.
|
VP Sales & Customer Service
|
28,000
|
$7.86
|
110.89%
|
|
2/1/2013
|
KRANTZ DONALD G
|
Chief Operating Officer
|
-10,000
|
$41.03
|
-88.89%
|
|
2/1/2013
|
KRANTZ DONALD G
|
Chief Operating Officer
|
10,000
|
$1.79
|
800.00%
|
|
2/1/2013
|
Goodman John B
|
Director
|
-2,000
|
$41.01
|
-24.24%
|
|
2/1/2013
|
Goodman John B
|
Director
|
2,000
|
$4.27
|
32.00%
|
|
1/16/2013
|
Dietrick William M.
|
Vice President of Marketing
|
12,000
|
$7.86
|
56.47%
|
|
1/16/2013
|
Dietrick William M.
|
Vice President of Marketing
|
20,000
|
$5.00
|
1,600.00%
|
|
1/16/2013
|
Dietrick William M.
|
Vice President of Marketing
|
-32,000
|
$42.30
|
-96.24%
|
|
1/2/2013
|
KRANTZ DONALD G
|
Chief Operating Officer
|
-5,428
|
$40.31
|
-100.00%
|
|
1/2/2013
|
KRANTZ DONALD G
|
Chief Operating Officer
|
-9,572
|
$39.27
|
-63.81%
|
|
12/19/2012
|
KRANTZ DONALD G
|
Chief Operating Officer
|
-10,000
|
$38.07
|
-100.00%
|
|
12/3/2012
|
KRANTZ DONALD G
|
Chief Operating Officer
|
-5,000
|
$36.45
|
-100.00%
|
|
11/27/2012
|
Dietrick William M.
|
Vice President of Marketing
|
-4,000
|
$36.00
|
-100.00%
|
|
11/26/2012
|
KRANTZ DONALD G
|
Chief Operating Officer
|
-2,490
|
$35.06
|
-100.00%
|
|
11/21/2012
|
KINGSLEY DOUGLAS A
|
Director
|
-1,417,500
|
$31.00
|
-29.40%
|
|
11/21/2012
|
NBGE Manager, LLC
|
Substantial Shareholder
|
-1,417,500
|
$31.00
|
-29.40%
|
|
11/21/2012
|
Smith Brian K
|
Director
|
-100,000
|
$31.00
|
-39.33%
|
|
11/21/2012
|
LUKIS LAWRENCE J
|
Chairman & Chief Tchnlgy Offcr
|
-1,417,500
|
$31.00
|
-20.55%
|
|
11/21/2012
|
Cleveland Bradley A.
|
President and CEO
|
-230,000
|
$31.00
|
-19.39%
|
|
11/21/2012
|
Cleveland Bradley A.
|
President and CEO
|
-35,000
|
$31.00
|
-46.98%
|
|
11/1/2012
|
KRANTZ DONALD G
|
Chief Operating Officer
|
-2,510
|
$35.01
|
-100.00%
|
|
11/1/2012
|
Goodman John B
|
Director
|
-2,000
|
$35.00
|
-24.24%
|
|
11/1/2012
|
Goodman John B
|
Director
|
2,000
|
$4.27
|
32.00%
|
|
10/31/2012
|
Cleveland Bradley A.
|
President and CEO
|
-19,900
|
$34.21
|
-1.65%
|
|
10/31/2012
|
Cleveland Bradley A.
|
President and CEO
|
-100
|
$35.00
|
-0.01%
|
|
10/31/2012
|
Cleveland Bradley A.
|
President and CEO
|
-4,500
|
$34.25
|
-5.70%
|
|
10/31/2012
|
Cleveland Bradley A.
|
President and CEO
|
-4,500
|
$34.22
|
-5.70%
|
|
10/26/2012
|
Schneider Jacqueline D.
|
VP Sales & Customer Service
|
-5,000
|
$36.00
|
-100.00%
|
|
10/25/2012
|
Schneider Jacqueline D.
|
VP Sales & Customer Service
|
20,000
|
$4.54
|
296.30%
|
|
10/25/2012
|
Schneider Jacqueline D.
|
VP Sales & Customer Service
|
-15,000
|
$36.08
|
-100.00%
|
|
10/25/2012
|
KRANTZ DONALD G
|
Chief Operating Officer
|
-5,000
|
$35.37
|
-100.00%
|
|
10/25/2012
|
Dietrick William M.
|
Vice President of Marketing
|
-4,000
|
$36.00
|
-100.00%
|
|
10/25/2012
|
Cleveland Bradley A.
|
President and CEO
|
-4,500
|
$33.47
|
-5.39%
|
|
10/25/2012
|
Schneider Jacqueline D.
|
VP Sales & Customer Service
|
-11,750
|
$34.00
|
-43.93%
|
|
10/17/2012
|
Cleveland Bradley A.
|
President and CEO
|
-4,500
|
$31.06
|
-5.11%
|
|
10/16/2012
|
Cleveland Bradley A.
|
President and CEO
|
-4,500
|
$31.00
|
-5.11%
|
|
10/11/2012
|
Cleveland Bradley A.
|
President and CEO
|
-4,300
|
$31.00
|
-4.66%
|
|
10/10/2012
|
Cleveland Bradley A.
|
President and CEO
|
-200
|
$31.07
|
-0.22%
|
|
10/8/2012
|
Cleveland Bradley A.
|
President and CEO
|
-4,500
|
$32.70
|
-4.86%
|
|
10/3/2012
|
Cleveland Bradley A.
|
President and CEO
|
-4,100
|
$33.35
|
-4.23%
|
|
10/3/2012
|
Cleveland Bradley A.
|
President and CEO
|
-400
|
$33.81
|
-0.43%
|
|
10/2/2012
|
Schneider Jacqueline D.
|
VP Sales & Customer Service
|
-8,250
|
$34.00
|
-100.00%
|
|
10/2/2012
|
Langton William R.
|
EVP of Finance
|
-8,250
|
$34.00
|
-100.00%
|
|
10/2/2012
|
Kubicek Mark R.
|
Executive Vice President
|
-5,000
|
$34.00
|
-3.33%
|
|
10/2/2012
|
Cleveland Bradley A.
|
President and CEO
|
-4,500
|
$33.74
|
-4.64%
|
|
9/27/2012
|
Cleveland Bradley A.
|
President and CEO
|
-20,000
|
$33.14
|
-1.63%
|
|
9/25/2012
|
Cleveland Bradley A.
|
President and CEO
|
-4,500
|
$33.91
|
-4.43%
|
|
9/25/2012
|
Tumelty John B.
|
Managing Dir.-Proto Labs, Ltd.
|
-9,001
|
$33.52
|
-100.00%
|
|
9/24/2012
|
Tumelty John B.
|
Managing Dir.-Proto Labs, Ltd.
|
-5,398
|
$33.50
|
-100.00%
|
|
9/24/2012
|
Cleveland Bradley A.
|
President and CEO
|
-4,500
|
$33.07
|
-4.43%
|
|
9/21/2012
|
Tumelty John B.
|
Managing Dir.-Proto Labs, Ltd.
|
-20,601
|
$33.61
|
-100.00%
|