Bio-Techne Corp.

Roger Lucas director

Shares sold: 100 Price:

–$107.81

Directly holds: 3,629

Communications Systems Inc.

Richard Primuth director

Shares purchased: 2,500 Price: $4.53

Date: March 15 Directly holds: 15,487

CURTIS SAMPSON director

Shares purchased: 2,200 Price:

–$4.55

Directly holds: 1,083,037

Ecolab Inc.

Jerry Levin director

Shares sold: 748 Price: $124.49

Date: March 8 Directly holds: 32,521

Famous Dave’S Of America Inc.

Patrick D. Walsh director

Shares sold: 35,000 Price: $4.52

Date: March 13 Indirectly holds:

337,250

Graco Inc.

William Carroll director

Exercised options: 8,600 Price: $38.45

Shares sold: 3,552 Price: $93.17

Date: March 8 Directly holds: 29,371

Eric Etchart director

Exercised options: 1,000 Price: $36.96

Shares sold: 393 Price: $94.40

Date: March 15 Directly holds: 7,193

Martha A. Morfitt director

Exercised options: 3,600 Price: $40.66

–$92.61

Date: March 9 Directly holds: 64,023

Hormel Foods Corp.

Terrell Crews director

Exercised options: 5,540 Price: $8.97

Date: March 9 Directly holds: na

Nortech Systems Inc.

Kenneth Larson director

Shares purchased: 2,000 Price: $3.56

Date: March 14 Directly holds: 7,000

Otter Tail Corp.

George Koeck general counsel

Shares sold: 4,000 Price: $36.30

Date: March 13 Directly holds: 15,786

Patterson Companies

James Wiltz director

Shares sold: 5,000 Price: $44.52

Date: March 9 Indirectly holds: 81,300

Pentair Plc

Ronald Lewis Merriman director

Exercised options: 10,000 Price: $34.18

Shares sold: 10,000 Price: $60.00

Date: March 10 Directly holds: 16,640

Regis Corp.

Jim B. Lain chief operating officer

Shares sold: 3,200 Price: $12.21

Date: March 8 Directly holds: 90,007

Tactile Systems Technology Inc.

Richard Nigon director

Shares purchased: 20,000 Price:

–$20.50

Directly holds: 130,404

Unitedhealth Group

Robert Joseph Darretta director

Exercised options: 16,621 Price:

–$54.62

Directly holds: na