Angeion Corp.

Gregg Lehman CEO Shares purchased: 10,000 Price: $4.25 Date: Sept. 12 Directly holds: 45,078 Robert Munzenrider director Shares purchased: 6,000 Price: $4.23-$4.28 Date: Sept. 8 Directly holds: 18,401

Arctic Cat Inc.

Mary Ellen Walker officer Exercised options: 78,385 Price: $6.26-$13.37 Shares sold: 55,017 Price: $16.03-$16.11 Date: Sept. 13 Directly holds: 12,244

Buffalo Wild Wings Inc.

Sally Smith CEO Shares sold: 2,000 Price: $58.51 Date: Sept. 12 Directly holds: 86,707 Mary Twinem CFO Shares sold: 1,500 Price: $58.90 Date: Sept. 6 Directly holds: 55,937

Fastenal Co.

Robert Kierlin director Shares sold: 70,000 Price: $32.57 Date: Sept. 7 Directly holds: 14,050,800

Hawkins Inc.

James Thompson director Shares purchased: 3,000 Price: $33.67 Date: Sept. 7 Directly holds: 6,186

Hickory Tech Corp.

Diane Dewbrey director Shares purchased: 3,000 Price: $9.24 Date: Sept. 7 Indirectly holds: 11,435

Hormel Foods Corp.

David Juhlke officer Exercised options: 28,000 Price: $15.04-$16.37 Date: Sept. 7 Directly holds: 30,020

Northern Oil & Gas Inc.

Lisa Meier director Shares sold: 11,671 Price: $19.42 Date: Sept. 9 Directly holds: 14,570

Northern Technologies International Corp.

Inter Alia Holding Co. shareholder Shares sold: 1,800 Price: Date: Sept. 12-13 $14.80-$15.20 Directly holds: 601,668 Gregory Lynch president Shares sold: 1,800 Price: Date: Sept. 12-13 $14.80-$15.20 Indirectly holds: 601,668

Patterson Cos. Inc.

Ellen Rudnick director Shares purchased: 2,000 Price: $28.40 Date: Sept. 8 Directly holds: 12,392 Les Vinney director Exercised options: 8,000 Price: Date: Sept. 9 $18.32 Directly holds: 13,718

Rochester Medical Corp.

Philip Conway officer Exercised options: 20,000 Price: $2.17 Shares sold: 20,000 Price: Date: Sept. 8-9 $7.85-$8.03 Directly holds: 403,743 David Jonas CFO Exercised options: 20,000 Price: $2.17 Date: Sept. 8 Directly holds: 81,500

Synovis Life Technologies

Timothy Scanlan director Exercised options: 20,000 Price: Date: Sept. 8 $7.50 Directly holds: 55,000

Tennant Co.

Chris Killingstad CEO Shares sold: 3,615 Price: $39.19 Date: Sept. 9 Directly holds: 82,098 Michael Schaefer tech. officer Exercised options: 7,500 Price: $10.08 Shares sold: 7,500 Price: $40.33 Date: Sept. 7 Directly holds: 6,732