3M Co

Paul Keel officer

Shares sold: 4,965 Price: $206.16

Date: August 11Directly holds: 5,503

Ameriprise Financial Inc

Walter Berman CFO

Shares sold: 37,971 Price: $145.18 to $147.14

Date: August 10Directly holds: 10,700

James Cracchiolo CEO

Shares sold: 39,450 Price: $143.74 to $145.05

Date: August 14 to 16Directly holds: 245,951

Deirdre Mcgraw-Davey officer

Shares sold: 1,200 Price: $145.06

Date: August 10Directly holds: 14,172

Karen Wilson Thissen general counsel

Exercised options: 5,532 Price: $65.31

Shares sold: 425 Price: $145.15

Date: August 10Directly holds: 6,931

Bio-Techne Corp

Roger Lucas director

Shares sold: 100 Price: $114.30

Date: August 10Directly holds: 2,070

Clearfield Inc

Roger Harding director

Shares purchased: 1,000 Price: $11.50

Date: August 9Directly holds: 18,009

Fastenal Co

Michael Dolan director

Shares sold: 8,000 Price: $43.01

Date: August 15Directly holds: 20,000

Hawkins Inc

Richard Erstad general counsel

Shares sold: 1,200 Price: $40.59

Date: August 11Directly holds: 10,524

Mts Systems Corp

Jeffrey Graves CEO

Shares purchased: 1,000 Price: $48.31

Date: August 11Directly holds: 27,924

David Hore officer

Shares purchased: 10,000 Price: $48.20

Date: August 10Directly holds: 15,000

Otter Tail Corp

Kevin Moug CFO

Shares sold: 1,500 Price: $41.75

Date: August 16Directly holds: 51,670

Select Comfort Corp

Joseph Saklad chief technology officer

Exercised options: 10,150 Price: $21.15 to $25.08

Shares sold: 5,100 Price: $33.24

Date: August 11Directly holds: 42,100

Tactile Systems Technology Inc

Robert Folkes chief operating officer

Shares sold: 1,500 Price: $32.54

Date: August 9Directly holds: 133,337

Gerald Mattys CEO

Exercised options: 30,000 Price: $0.51

Shares sold: 30,000 Price: $30.67 to $33.01

Date: August 11 to 14Directly holds: 312,400

U.S. Bancorp

Craig E. Gifford officer

Shares sold: 300 Price: $53.09

Date: August 9Directly holds: 42,416