Ameriprise financial Inc.

Colin Moore officer

Shares sold: 12,322 Price: $181.86

Date: Nov. 11 Directly holds: 55,051

ANI Pharmaceuticals inc.

patrick D. Walsh director

Shares purchased: 5,000 Price: $25.96

Date: Nov. 9 Directly holds: 35,096

Bio-TECHNE CORP.

Alpna Seth director

Exercised options: 5,023 Price:

$125.05-$179.84

Shares sold: 5,023 Price: $305.74-$306.95

Date: Nov. 9 Directly holds: 2,139

CLEARFIELD Inc.

Cheryl P. Beranek CEO

Shares sold: 23,685 Price: $24.06-$24.13

Date: Nov. 10-16 Directly holds: 535,152

Patrick FRANCIS Goepel director

Shares sold: 25,454 Price: $23.13-$23.92

Date: Nov. 13-16 Directly/indirectly

holds: 77,043

John P. Hill COO

Shares sold: 10,000 Price: $24

Date: Nov. 16 Directly holds: 206,065

CyberOptics Corp.

Jeffrey A. Bertelsen COO

Exercised options: 26,750 Price:

$5.39-$7.70

Shares sold: 3,307 Price: $24.25

Date: Nov. 13 Indirectly holds: 112,743

Digi International Inc.

Kevin C. Riley officer

Exercised options: 70,000 Price:

$7.40-$12.63

Shares sold: 79,598 Price: $16.77-$17.35

Date: Nov. 17-19 Directly holds: 83,887

David. H. Sampsell general counsel

Exercised options: 34,088 Price: $12.07

Shares sold: 32,654 Price: $17-$17.47

Date: Nov. 17-19 Directly holds: 59,602

H.b. Fuller Co.

Nathan D. Weaver officer

Shares sold: 3,423 Price: $50.47-$51.20

Date: Nov. 11 Directly/indirectly

holds: 3,209

Graco Inc.

Mark W. Sheahan CFO

Exercised options: 54,000 Price: $19.58

Shares sold: 54,000 Price: $67.79

Date: Nov. 11 Directly holds: 64,783

Image Sensing Systems

Joseph Patrick Daly director

Shares purchased: 25,070 Price: $4­-$4.10

Date: Nov. 16-17 Indirectly holds: 40,108

Medtronic PLC

Ivan K. Fong general counsel

Exercised options: 15,073 Price: $89.25

Shares sold: 15,073 Price: $172.62

Date: Nov. 16 Directly holds: 32,813

SLEEP NUMBER Corp.

David R. Callen CFO

Shares sold: 12,265 Price: $73.25-$73.33

Date: Nov. 17-18 Directly holds: 42,892

SurModics Inc.

Jose H. Bedoya directorr

Exercised options: 3,575 Price: $22.58

Date: Nov. 17 Directly holds: na

David R. Dantzker directorr

Exercised options: 3,575 Price: $22.58

Date: Nov. 10 Directly holds: na

Tennant Co.

Carol S. Eicher director

Exercised options: 1,750 Price: 40.81

Shares sold: 1,131 Price: $63.30

Date: Nov. 13 Directly holds: 17,259

WINMARK Corp.

Leah A. Goff officer

Shares sold: 900 Price: $171.31-$174

Date: Nov. 13 Indirectly holds: 9,175