KOSS insider transactions

President and CEO Koss Michael J disposed of 12,000 shares (SEC Form 4)

Director Lillie Lenore bought $12,400 worth of shares (2,500 units at $4.96) (SEC Form 4)

Vice President - Sales Koss John C Jr exercised 50,000 shares at a strike of $1.90 and sold $285,305 worth of shares (50,000 units at $5.71) (SEC Form 4)

VP - Marketing & Product Koss Michael J Jr exercised 30,643 shares at a strike of $1.90 and sold $147,254 worth of shares (30,643 units at $4.81) (SEC Form 4)

Vice President - Sales Koss John C Jr exercised 25,000 shares at a strike of $1.90 and sold $184,725 worth of shares (25,000 units at $7.39) (SEC Form 4)

Koss Michael J disposed of 15,000 shares (SEC Form 4)

Koss John C Jr exercised 25,000 shares at a strike of $2.17 and sold $131,250 worth of shares (25,000 units at $5.25) (SEC Form 4)

SEC Form 3 filed by new insider Lillie Lenore

SEC Form 4: Koss Family Trust, Dated 9/11/12 closing all direct ownership in the company

SEC Form 4: Kft Corp closing all direct ownership in the company

SEC Form 4: Sweasy William Jesse bought $20,783 worth of shares (2,847 units at $7.30), increasing direct ownership by 17% to 20,000 units

SEC Form 4 filed by Koss Michael J

SEC Form 4 filed by Koss John C Jr

SEC Form 4: Sweasy William Jesse bought $119,385 worth of shares (17,153 units at $6.96)

SEC Form 3: New insider Schulte Kim M. claimed no ownership of stock in the company

SEC Form 4: Smith David Donnan exercised 10,000 shares at a strike of $2.63 and sold $155,400 worth of shares (10,000 units at $15.54)

SEC Form 4: Koss Michael J Jr exercised 24,089 units of Common Stock at a strike of $2.64 and sold $427,339 worth of Common Stock (24,089 units at $17.74)

SEC Form 4: Koss Michael J sold $155,805 worth of Common Stock (8,500 units at $18.33) and exercised 8,500 units of Common Stock at a strike of $1.95

SEC Form 4: Koss John C Jr exercised 10,000 units of Common Stock at a strike of $1.90 and sold $183,800 worth of Common Stock (10,000 units at $18.38)

SEC Form 4: Koss Michael J exercised 10,000 units of Common Stock at a strike of $1.95 and sold $185,287 worth of Common Stock (10,000 units at $18.53)

SEC Form 4: Koss Michael J exercised 10,000 units of Common Stock at a strike of $1.95 and sold $181,788 worth of Common Stock (10,000 units at $18.18)

SEC Form 4: Koss John C Jr sold $271,900 worth of Common Stock (15,000 units at $18.13) and exercised 15,000 units of Common Stock at a strike of $1.90

SEC Form 4: Koss Michael J Jr exercised 30,000 units of Common Stock at a strike of $1.93 and sold $540,300 worth of Common Stock (30,000 units at $18.01)

SEC Form 4: Smith David Donnan exercised 110,000 units of Common Stock at a strike of $2.60 and sold $1,940,400 worth of Common Stock (110,000 units at $17.64)

SEC Form 4: Koss John C Jr sold $1,383,451 worth of Common Stock (75,000 units at $18.45) and exercised 75,000 units of Common Stock at a strike of $2.35

SEC Form 4: Koss Michael J exercised 16,500 units of Common Stock at a strike of $1.95 and sold $325,710 worth of Common Stock (16,500 units at $19.74)

SEC Form 4: LILLIE LENORE exercised 15,000 units of Common Stock at a strike of $2.11 and sold $334,050 worth of Common Stock (15,000 units at $22.27)

SEC Form 4 filed by Koss Corporation

SEC Form 4: KOSS JOHN C JR sold $196,700 worth of Common Stock (8,000 units at $24.59), decreasing direct ownership by 5% to 151,028 units

SEC Form 4: Koss Michael J Jr sold $243,000 worth of Common Stock (10,000 units at $24.30), decreasing direct ownership by 28% to 26,000 units

SEC Form 4: KOSS JOHN C JR sold $378,990 worth of Common Stock (13,133 units at $28.86), decreasing direct ownership by 8% to 159,028 units

SEC Form 4 filed by Koss Corporation

SEC Form 4 filed by Koss Corporation

SEC Form 4: KOSS MICHAEL J exercised 55,000 units of Common Stock at a strike of $1.95 and sold $1,838,084 worth of Common Stock (65,000 units at $28.28)

SEC Form 4: Nixon Theodore exercised 10,000 units of Common Stock at a strike of $1.92 and sold $235,800 worth of Common Stock (10,000 units at $23.58)

SEC Form 4: KOSS JOHN C JR sold $235,000 worth of Common Stock (10,000 units at $23.50), decreasing direct ownership by 5% to 202,161 units

SEC Form 4 filed by Koss Corporation

SEC Form 4: Lenore Lillie exercised 7,550 units of Common Stock at a strike of $3.00 and sold $173,930 worth of Common Stock (7,550 units at $23.04)

SEC Form 4: Donnan David Smith exercised 16,000 units of Common Stock at a strike of $2.22 and sold $365,580 worth of Common Stock (16,000 units at $22.85)

SEC Form 4: J Michael Koss sold $123,619 worth of Common Stock (4,122 units at $29.99)

SEC Form 4: Jr C John Koss gifted 5,000 units of Common Stock and sold $828,580 worth of Common Stock (29,000 units at $28.57), decreasing direct ownership by 14% to 212,161 units

SEC Form 4: J Michael Koss exercised 40,000 units of Common Stock at a strike of $1.95 and sold $2,277,800 worth of Common Stock (69,000 units at $33.01), decreasing direct ownership by 2% to 783,907 units

SEC Form 4: Donnan David Smith exercised 24,000 units of Common Stock at a strike of $2.27 and sold $396,510 worth of Common Stock (24,000 units at $16.52)

SEC Form 4: Lenore Lillie exercised 22,450 units of Common Stock at a strike of $3.00 and sold $370,425 worth of Common Stock (22,450 units at $16.50)

SEC Form 4: Jr C John Koss gifted 10,000 units of Common Stock and sold $1,618,800 worth of Common Stock (60,000 units at $26.98), decreasing ownership by 8% to 246,161 units

SEC Form 4: Jr J Michael Koss exercised 15,000 units of Common Stock at a strike of $2.17 and sold $486,790 worth of Common Stock (15,000 units at $32.45)

SEC Form 4: J Michael Koss exercised 20,000 units of Common Stock at a strike of $1.95 and sold $2,723,250 worth of Common Stock (95,000 units at $28.67), decreasing ownership by 2% to 798,907 units

SEC Form 4: 12/20/12 Dated Trust, 2012 Koss Nancy sold $3,558,100 worth of Common Stock (100,000 units at $35.58), decreasing ownership by 12% to 757,949 units

SEC Form 4: Jr C John Koss sold $374,400 worth of Common Stock (15,000 units at $24.96), decreasing ownership by 5% to 266,161 units

SEC Form 4: J Michael Koss sold $960,030 worth of Common Stock (36,000 units at $26.67), decreasing ownership by 2% to 813,907 units

SEC Form 4: A Steven Leveen sold $390,250 worth of Common Stock (10,000 units at $39.02), decreasing ownership by 100% to 0 units

SEC Form 4: L. Thomas Doerr exercised 6,667 units of Common Stock at a strike of $1.92 and sold $280,147 worth of Common Stock (6,667 units at $42.02)

SEC Form 4: Jesse William Sweasy sold $800,000 worth of Common Stock (20,000 units at $40.00), decreasing ownership by 100% to 0 units

SEC Form 4: Theodore Nixon sold $1,313,400 worth of Common Stock (30,000 units at $43.78), decreasing ownership by 100% to 0 units

SEC Form 4: Lenore Lillie exercised 99,487 units of Common Stock at a strike of $4.86 and sold $4,185,354 worth of Common Stock (119,575 units at $35.00), decreasing ownership by 100% to 0 units

SEC Form 4: Donnan David Smith exercised 124,000 units of Common Stock at a strike of $4.58 and sold $6,035,450 worth of Common Stock (149,000 units at $40.51), decreasing ownership by 100% to 0 units

SEC Form 4: Jr J Michael Koss sold $3,907,813 worth of Common Stock (105,000 units at $37.22) and exercised 105,000 units of Common Stock at a strike of $2.36

SEC Form 4: Jr C John Koss exercised 250,000 units of Common Stock at a strike of $2.35 and sold $17,233,154 worth of Common Stock (452,912 units at $38.05), decreasing ownership by 21% to 281,161 units

SEC Form 4: J Michael Koss exercised 160,000 units of Common Stock at a strike of $2.42 and sold $13,264,440 worth of Common Stock (324,000 units at $40.94), decreasing ownership by 3% to 833,907 units

SEC Form 4: Lenore Lillie exercised 24,000 units of Common Stock at a strike of $2.57 and sold $110,400 worth of Common Stock (24,000 units at $4.60)