Bioamber Inc.

Kurt Briner director

Shares purchased: 22,015 Price:

–24 $3.54–$3.70

Directly holds: 142,645

Buffalo Wild Wings

Kathleen M. Benning officer

Shares sold: 4,799 Price: $137.03

Date: May 19 Directly holds: 12,612

John Oliver Maggard director

Shares sold: 700 Price: $137.84

Date: May 19 Directly holds: 3,822

Communications Systems Inc.

Roger H Lacey director

Shares purchased: 3,250 Price:

–$6.60

Directly holds: 34,954

Datalink Corp.

Greg Meland director

Shares sold: 40,000 Price: $8.20

Date: May 24 Directly holds: 1,360,426

Digi International Inc.

Tracy L. Roberts officer

Exercised options: 20,000 Price: $8.03

Shares sold: 20,000 Price: $11.25

–25 Directly holds: 26,775

Hormel Foods Corp.

Robert Nakasone director

Exercised options: 6,800 Price: $8.93

Date: May 23 Directly holds: na

Imation Corp.

Robert B. Fernander CEO

Shares purchased: 21,204 Price:

–25 $1.68–$1.69

Directly holds: 705,909

Nortech Systems Inc.

Richard Wasielewski CEO

Shares purchased: 2,975 Price:

–$3.75

Directly holds: 26,474

Piper Jaffray Companies

Robert Scott Larue officer, director

Shares sold: 20,000 Price: $41.76

Date: May 25 Directly holds: 79,653

Polaris Industries Inc.

Kevin Farr director

Shares purchased: 2,100 Price: $83.15

Date: May 23 Directly holds: 2,100

Proto Labs Inc.

Rainer Gawlick director

Shares sold: 357 Price: $61.20

Date: May 19 Directly holds: 4,672

Select Comfort Corp.

Brenda Joyce Lauderback director

Shares sold: 416 Price: $22.50

Date: May 25 Directly holds: 32,242

Target Corp.

Calvin Darden director

Exercised options: 37,105 Price:

–$60.48

Shares sold: 37,105 Price: $67.02

Date: May 19 Directly holds: 22,134

Catherine Smith officer

Shares purchased: 5,000 Price: $67.82

Date: May 20 Directly holds: 16,868

Toro Co.

William Brown JR. officer

Exercised options: 9,932 Price:

–$27.47

–$88.24

–25 Directly holds: 96,549

Vascular Solutions

Howard Root CEO

Shares sold: 34,418 Price: $39.05

Date: May 24 Directly holds: 348,340