3M Co.

Michael F. Roman, CEO

Exercised options: 4,944Price: $54.11

Date: Feb. 1Directly holds: na

Inge G. Thulin, officer and director

Exercised options: 25,083Price: $78.72

Shares sold: 26,789Price:

Date: Jan. 30–31$200-$200.05

Directly holds: 232,076

Calyxt Inc.

Daniel F. Voytas, officer

Exercised options: 8,170Price: $3.71

Shares sold: 8,170Price: $13

Date: Jan. 31–Feb. 1Directly holds:

92,982

Canterbury Park Holding Corp.

Curtis Sampson, director, owner

Exercised options: 3,000Price: $6.66

Date: Feb. 1Directly holds: na

Digi International Inc.

Jon A. Nyland, officer

Exercised options: 32,553Price:

$8.03–$9.68

Shares sold: 32,553Price:

Date: Feb. 5–6$13.35–$13.56

Directly holds: 43,366

Kevin C. Riley, officer

Exercised options: 41,000Price: $9,59

Shares sold: 41,000Price: $13.50

Date: Feb. 5Directly holds: 86,670

Fastenal Co.

Nicholas J. Lundquist, officer

Shares sold: 5,000Price: $60.51

Date: Jan. 31Directly holds: 252,369

Graco Inc.

Angela F. Wordell, officer

Exercised options: 2,500Price: $6.93

Shares sold: 2,500Price: $43.63

Date: Feb. 5Directly holds: 10,486

General Mills Inc.

R. Kerry Clark, director

Exercised options: 17,160Price: $26.23

Date: Feb. 4

Shares sold: 7,849Price: $44.26

Date: Feb. 1Directly holds: 47,375

IntriCon Corp.

Greg Gruenhagen, officer

Exercised options: 1,812Price: $4.53

Shares sold: 1,500Price: $26.21

Date: Feb. 4Directly holds: 2,237

Pentair PLC

Karl R. Frykman, COO

Exercised options: 15,362Price: $12.75

Shares sold: 10,241Price: $41.28

Date: Feb. 1Directly holds: 49,044

C.H. Robinson Worldwide Inc.

Jordan Kass, officer

Shares sold: 1,382Price: $90.80

Date: Feb. 6Directly holds: 32,943

C.H. Robinson Worldwide (cont.)

James P. Lemke, officer

Shares sold: 2,399Price: $89.61

Date: Feb. 6Directly holds: 189,257

Christopher J. O'Brien, officer

Shares sold: 1,100Price: $89.37

Date: Feb. 5Directly holds: 63,636

SurModics Inc.

Gary R. Maharaj, CEO

Shares sold: 2,833Price:

Date: Feb. 1$51.87–$56.36

Directly holds: 167,034

Tactile Systems Technology Inc.

Robert J. Folkes, COO

Exercised options: 3,044Price: $1.55

Shares sold: 3,044Price: $66.04

Date: Feb. 1Directly holds: 107,770

UnitedHealth Group

David S. Wichmann, CEO

Exercised options: 113,122Price:

Date: Feb. 1 $29.74

Directly holds: na

U.S. Bancorp

Leslie V. Godridge, officer

Exercised options: 14,737Price: $28.63

Shares sold: 14,737Price: $51.50

Date: Feb. 4Directly holds: 59,620