Insider trading

3M CO.

Eric D. Hammes, officer

Exercised options: 1,026Price: $89.47

Shares sold: 1,026Price: $146.36

Date: May 6Directly holds: 9,801

Michael G. Vale, officer

Exercised options: 7,812Price: $89.47

Shares sold: 14,062Price: $148.32-$148.36

Date: May 8Directly holds: 46,900

BEST BUY CO. INC.

Brian A. Tilzer, chief technology officer

Shares sold: 3,137Price: $77.03

Date: May 8Directly holds: 17,912

ECOLAB INC.

Angela M. Busch, officer

Exercised options: 4,800Price: $55.60

Shares sold: 4,800Price: $195.04-$197.03

Date: May 11-12Directly holds: 14,070

FASTENAL CO.

William J. Drazkowski, officer

Exercised options: 7,142Price: $21

Shares sold: 7,142Price: $39.40

Date: May 12Directly holds: 11,474

Daniel L. Florness, CEO

Exercised options: 12,500Price: $27

Shares sold: 12,500Price: $38.62

Date: May 8Directly holds: 229,132

Leland J. Hein, officer

Exercised options: 25,000Price: $23

Shares sold: 25,000Price: $37.92-$39.18

Date: May 6-11Directly holds: 20,695

Sheryl A. Lisowski, officer, treasurer

Exercised options: 13,414Price: $21-$27

Shares sold: 13,414Price: $38.61

Date: May 8Directly holds: 2,387

Willard d. Oberton, director

Exercised options: 40,000Price: $27

Shares sold: 40,000Price: $39.71

Date: May 11Directly holds: 927,137

JOHN L. SODERBERG, officer

Exercised options: 20,000Price: $27

Shares sold: 20,000Price: $38.23

Date: May 7Directly holds: 12,796

GENERAL MILLS INC.

Jeffrey L. Harmening, CEO

Exercised options: 45,397Price: $37.40

Date: May 12Directly holds: na

HMN FINANCIAL INC.

Hugh C. Smith, chairman

Shares purchased: 1,000Price: $15.40

Date: May 7Directly holds: 25,591

Mark E. Utz, director

Shares purchased: 518Price: $15.15

Date: May 8Directly holds: 4,574

INSIGNIA SYSTEMS INC.

Funicular Fund LP, beneficial owner

Shares purchased: 49Price: $0.64

Date: May 7Indirectly holds: 1,518,816

SLEEP NUMBER CORP.

Jean Michael Valette, director

Exercised options: 8,034Price:

Date: May 8$27.45-$30.50

Directly holds: na

SPS COMMERCE INC.

James J. Frome, chief operating officer

Exercised options: 3,800Price:

$32.98-$33.55

Shares sold: 3,800Price: $60.01-$60.06

Date: May 7-8 Directly holds: 42,664

Philip E. Soran, director

Exercised options: 9,180Price:

$8.33-$28.87

Shares sold: 9,180Price: $60.02

Date: May 7 Directly holds: 14,470

Sven A. Wehrwein, director

Exercised options: 10,680Price: $8.33

Shares sold: 10,680Price: $57.31-$59.62

Date: May 6-7 Directly holds: 14,470

TACTILE SYSTEMS TECHNOLOGY INC.

Bryan F. Rishe, officer

Shares sold: 2,330Price: $49.22

Date: May 11Directly holds: 45,448

TARGET CORP.

Brian C. Cornell, officer, director

Shares sold: 110,000Price: $120

Date: May 11Directly holds: 403,917

UNITEDHEALTH GROUP INC.

Stephen J. Hemsley, director

Shares sold: 45,637Price: $289.11

Date: May 11Directly holds: 2,585,913