Ameriprise Financial

John Carl Junek general counsel

Exercised options: 14,347 Price: $37.23

Shares sold: 4,683 Price: $100.30

Date: Sept. 7Directly holds: 23,453

John R. Woerner officer

Exercised options: 18,930 Price: $54.33

Shares sold: 4,513 Price: $100.71

Date: Sept. 7Directly holds: 20,734

Bio-Techne Corp.

Kevin Gould officer

Shares sold: 524 Price: $110.50

Date: Sept. 8Directly holds: 1,667

John Higgins director

Shares sold: 1,700 Price: $109.83

Date: Sept. 8Directly holds: 1,359

Donaldson Co. Inc.

Amy Becker officer

Exercised options: 3,000 Price: $17.23

Date: Sept. 12Directly holds: na

John Paul Wiehoff director

Exercised options: 14,400 Price: $17.50

Shares sold: 14,400 Price: $36.32

Date: Sept. 14Directly holds: 42,477

Ecolab Inc.

Larry L. Berger chief tech. officer

Exercised options: 10,000 Price: $48.06

Date: Sept. 8Directly holds: na

Entellus Medical Inc.

James Surek officer

Shares sold: 10,000 Price: $18.71

Date: Sept. 8Directly holds: 95,031

Fastenal Co.

Michael Ancius director

Shares purchased: 600 Price: $41.00

Date: Sept. 9Indirectly holds: 10,909

Patterson Companies

Ellen Rudnick director

Exercised options: 5,000 Price: $32.41

Date: Sept. 9Directly holds: na

Surmodics Inc.

Joseph Stich officer

Shares sold: 1,000 Price: $28.74

Date: Sept. 6Directly holds: 38,121

Tactile Systems Technology Inc.

Richard Nigon director

Shares purchased: 18,750 Price:

Date: Sept. 13–14 $15.85–$17.14

Indirectly holds: 103,438

Unitedhealth Group

Richard Taylor Sr. Burke director

Exercised options: 5,990 Price:

Date: Sept. 14$48.78–$49.43

Shares sold: 40,000 Price:

Date: Sept. 7$134.81–$135.80

Directly holds: 2,069,550

Winmark Corp.

Nine Ten Partners shareholder

Shares sold: 2,900 Price: $108.16

Date: Sept. 7Indirectly holds: 462,203