3M Co

joaquin delgado officer

Exercised options: 53,872 Price:

$78.72

Shares sold: 26,936 Price:

Date: Nov. 1$229.64–$230.46

Directly holds: 33,696

Khandpur K. ASHISH CTO

Exercised options: 4,004 Price: $54.11

Shares sold: 4,004 Price:

Date: Nov. 1$231.38–$231.39

Directly holds: 2,747

JAMES L. BAUMAN officer

Shares sold: 2,200 Price:

Date: Oct. 31$230.86–$230.90

Directly/indirectly holds: 12,757

AMERIprise financial

james cracchiolo CEO

Shares sold: 42,228 Price:

Date: Nov. 7–9$159.07–$161.07

Directly holds: 203,736

bio-techne corp.

robert v. baumgartner director

Exercised options: 5,000 Price: $63.03

Shares sold: 5,000 Price: $130.18

Date: Nov. 1Directly holds: 7,712

CYBEROPTICS CORP.

Sudobh K. Kulkarni CEO

Shares purchased: 500 Price: $14.44

Date: Nov. 6Directly holds: 50,577

ECOLAB INC.

david W. macLennan director

Shares purchased: 450 Price: $131.77

Date: Nov. 6Indirectly holds: 8,449

Fastenal co.

leland j. hein officer

Exercised options: 10,000 Price: $27

Shares sold: 10,000 Price: $48

Date: Nov. 6Directly holds: 10,258

GRACO INC.

Lee R. MITAU director

Exercised options: 8,600 Price: $20.19

Shares sold: 8,600 Price: $131.18

Date: Nov. 2Directly holds: 58,804

HMN FInancial INC.

WENDY SHANNON director

Shares purchased: 200 Price: $18.53

Date: Nov. 2Directly holds: 3,642

PENTAIR plc

William thomas monahan director

Exercised options: 10,000 Price: $34.18

Shares sold: 10,000 Price: $70.27

Date: Nov. 1Directly holds: 40,656

KARL R. FRYKMAN officer

Exercised options: 11,386 Price: $32.40

Shares sold: 11,386 Price:

Date: Nov. 1$70.19 –$70.37

Directly holds: 35,288

C.H. RObinson worldwide inc.

michael john short officer

Exercised options: 11,186 Price:

$58.25–$63.58

Shares sold: 11,186 Price: $80.57

Date: Nov. 7Directly holds: 14,271

Jordan kass director

Shares sold: 1,738 Price: $78.75

Date: Nov. 6Directly holds: 24,348

C.H. RObinson worldwide inc.

JAMES P. LEMKE officer

Shares sold: 15,000 Price: $79.98

Date: Nov. 7Directly holds: 179,714

select comfort corp.

mARK A. Kimball officer

Shares sold: 8,000 Price: $32.69

Date: Nov. 1Directly holds: 77,387

PATRICIA DIRKS officer

Shares sold: 1,000 Price: $34.75

Date: Nov. 1Directly holds: 38,890

TACTILE SYSTEMS TECHNOLOGY INc.

bryan f. rishe officer

Shares sold: 1,500 Price: $27.21

Date: Nov. 3Directly holds: 105,307

Lynn LARSON BLAKE CFO

Shares sold: 682 Price: $28.63

Date: Nov. 1Directly holds: 64,767

Robert j. foles COO

Exercised options: 2,955 Price: $0.51

Shares sold: 4,455 Price: $28.10–$28.63

Date: Nov. 1Directly holds: 125,882

TILE SHOP HOLDINGS INC.

christopher cook director

Shares purchased: 22,200 Price: $8.42

Date: Nov. 7Directly holds: 138,559

XCEL ENERGY INC.

TIMOTHY V. WolF director

Shares sold: 3,000 Price: $49.48–$49.49

Date: Nov. 1Directly holds: 1,000

MARK E. STOERING officer

Shares sold: 20,187 Price: $49.66

Date: Nov. 6Directly holds: 49,283