Alliant Techsystems Inc.

Roman Martinez IV director

Shares sold: 100 Price: $96.47

Date: Sept. 6Indirectly holds: 4,000

Ameriprise Financial Inc.

Kim Michelle Sharan officer

Shares sold: 6,567 Price: $88.41

Date: Sept. 5Directly holds: 26,196

Best Buy Co. Inc.

Christopher Gould officer, treasurer

Shares sold: 7,225 Price: $37.37

Date: Sept. 5Directly holds: 14,342

Hubert Joly CEO

Exercised options: 350,467 Price: $18.02

Shares sold: 451,153 Price: $37.01–$37.08

Date: Sept. 6Directly holds: 476,629

Keith Nelsen general counsel

Shares sold: 12,748 Price: $37.86

Date: Sept. 4Directly holds: 88,283

Richard Schulze major shareholder

Shares sold: 787,663 Price: $37.10–$37.26

Date: Sept. 6–9Indirectly holds:

65,784,300

Buffalo Wild Wings Inc.

Mary Twinem CFO

Shares sold: 2,000 Price: $105.47

Date: Sept. 5Directly holds: 41,809

Donaldson Co. Inc.

Charles Mcmurray officer

Exercised options: 16,061 Price:

$34.15–$35.66

Shares sold: 507 Price: $36.85

Date: Sept. 9Directly holds: 191,412

Fair Isaac Corp.

Richard Deal officer

Shares sold: 19,896 Price: $51.31

Date: Sept. 9Directly holds: 16,783

Hmn Financial Inc.

Bradley Krehbiel CEO

Shares purchased: 100 Price: $8.26

Date: Sept. 6Directly holds: 77,497

Image Sensing Systems

Kris Tufto CEO

Shares purchased: 200 Price: $7.10

Date: Sept. 3Directly holds: 3,000

Patterson Companies Inc.

Andre Lacy director

Shares sold: 12,000 Price: $39.88

Date: Sept. 3Directly holds: 93,963

Ellen Rudnick director

Exercised options: 12,000 Price: $33.65

Shares sold: 12,000 Price: $40.00

Date: Sept. 5Directly holds: 18,263

Proto Labs Inc

Bradley Alan Cleveland CEO

Shares sold: 95,000 Price: $73.60–$75.47

Date: Sept. 9–10Indirectly holds: 445,182

Margaret Loftus director

Shares sold: 10,000 Price: $71.97

Date: Sept. 3Directly holds: 61,250

Jacqueline Schneider officer

Exercised options: 2,000 Price: $5.56

Shares sold: 2,000 Price: $73.90

Date: Sept. 9Directly holds: 1,250

Brian Smith director

Shares sold: 10,177 Price: $74.85

Date: Sept. 4Directly holds: NA

Tennant Company

Hans Chris Killingstad CEO

Exercised options: 39,100 Price: $10.08

Shares sold: 39,100 Price: $54.88

Date: Sept. 10Directly holds: 100,531

Toro Co.

William E. Brown JR. officer

Exercised options: 14,400 Price: $18.51

Shares sold: 14,400 Price: $53.91

Date: Sept. 9Directly holds: 117,930

Unitedhealth Group Inc.

Douglas Leatherdale director

Shares sold: 15,000 Price: $74.36

Date: Sept. 6Directly holds: 971,279