Best Buy Co. Inc.

Mathew Watson,  officer

Shares sold: 457 Price: $72.54

Date: June 11 Directly holds: 20,241

Bio-Techne Corp.

Charles R. Kummeth, CEO

Shares sold: 8,000 Price: $160

Date: June 7 Directly holds: 76,472

Insignia Systems Inc.

Air T inc. beneficial owner

Shares purchased: 2,651 Price: $1.80

Date: June 6 Directly holds: 3,476,014

MEDTRONIC PLC

Richard E. Kuntz,  officer

Shares sold: 11,500 Price: $87.13

Date: June 8 Directly holds: 105,923

Bradley E. Lerma,n general counsel

Shares sold: 8,910 Price: $86.82

Date: June 11 Directly holds: 51,842

POLARIS INDUSTRIES INC.

Michael D. Dougherty,  officer

Exercised options: 15,000 Price: $65.57

Shares sold: 15,000 Price:

–$126.07

Directly holds: 43,507

Robert Paul Mack,  officer

Shares sold: 762 Price: $125.51

Date: June 7 Directly holds: 21,991

Kenneth J. Pucel,  officer

Exercised options: 36,000 Price: $70.18

Shares sold: 36,000 Price: $124.77

Date: June 7 Directly holds: 21,335

Michael T. Speetzen,  CFO

Exercised options: 24,500 Price: $70.18

Shares sold: 24,500 Price: $125.58

Date: June 6 Directly holds: 11,061

James P. Williams,  officer

Exercised options: 14,750 Price: $44

Shares sold: 14,750 Price: $127.80

Date: June 11 Directly holds: 5,717

PROTO LABS INC.

Robert Bodor,  officer

Exercised options: 3,000 Price: $78.59

Shares sold: 3,000 Price: $130

Date: June 12 Directly holds: 19,755

SURMODICS INC.

CHARLES W. OLSON,  officer

Shares sold: 10,000 Price: $55

Date: June 11 Directly holds: 31,234

Bryan K. Phillips,  general counsel

Shares sold: 15,000 Price:

–$52.81

Directly holds: 26,887

TARGET CORP.

Laysha L. Ward, officer

Exercised options: 43,926 Price:

–$53.36

Shares sold: 43,926 Price: $79.33

Date: June 11 Directly holds: 54,996