ALLETE INC.

James j. Hoolihan, director

Shares sold: 800Price: $75.85

Date: May 24Directly holds: 14,884

Best buy co. inc.

Rajendra Michael Mohan, officer

Shares sold: 2,617 Price: $70.98

Date: May 25Directly holds: 97,897

Mathew Watson, officer

Shares sold: 276 Price: $75.78

Date: May 23Directly holds: 20,698

Communications systems Inc.

Curtis Allen Sampson, director

Shares purchased: 10,000 Price: $3.89

Date: May 25Directly holds: 1,108,463

DIGI INTERNATIONAL INC.

Tracy L. Roberts, officer

Exercised options: 1,661 Price: $8.49

Shares sold: 1,661 Price: $12

Date: May 25Directly holds: 41,074

FAMOUS DAVE's OF AMERICA INc.

David L. Kanen, beneficial owner

Shares purchased: 30,000 Price: $7.55

Date: May 23Indirectly holds: 237,612

GENERAL MILLS INc.

Jeffrey L. Harmening, CEO

Shares purchased: 6,0000 Price: $42.18

Date: May 23Indirectly holds: 146,459

GOLDEN ENTERTAINMENT

Timothy J. Cope, director

Exercised options: 83,036 Price:

Date: May 23$4,79­-$5.09

Shares sold: 42,430 Price: $29.97

Date: May 24Directly holds: 63,820

HORMEL FOODS CORp.

Thomas R. Day, officer

Exercised options: 80,000Price:

$6.32-$9.56

Shares sold: 43,023 Price: $37.02

Date: May 30Directly holds: 183,752

Robert C. Nakasone, director

Exercised options: 6,000Price: $7.60

Shares sold: 6,000 Price: $36.57

Date: May 30Directly holds: 122,057

IMAGE SENSING SYSTEMS

AB Value Management, owner

Shares purchased: 300Price: $3.90 Date: May 29Indirectly holds: 979,854

INsignia systems inc.

Air T Inc., beneficial owner

Shares purchased: 5,421Price: $1.83

Date: May 29-30Directly holds:

3,454,135

SLEEP NUMBER CORP.

Brenda Lauderback, director

Shares sold: 974 Price: $28.50

Date: May 24Directly holds: 35,012

SURMODICS INC.

Timothy J. Arens, CFO

Shares sold: 7,000 Price: $49.20

Date: May 22Directly holds: 32,430

Charles W. Olson, officer

Shares sold: 20,000 Price:

Date: May 24$48.48-$49.39

Directly holds: 33,027

UNITEDHEALTH GROUP

Richard Burke Sr., director

Exercised options: 1,540 Price: $33.94

Date: May 30Directly holds: na

Xcel Energy Corp.

Timothy V. Wolf, director

Shares sold: 3,163 Price: $45.15

Date: May 29Directly holds: 1,000