ADTN insider transactions

Chief Revenue Officer Wilson James Denson Jr sold $137,367 worth of shares (9,332 units at $14.72) and gifted 10,469 shares, decreasing direct ownership by 13% to 132,808 units (SEC Form 4)

Chief Technology Officer Glingener Christoph exercised 148,392 shares at a strike of $10.74 and sold $2,219,844 worth of shares (148,392 units at $14.96) as part of a pre-agreed trading plan (SEC Form 4)

SEC Form 4 filed by Wilson James Denson Jr

SEC Form 4 filed by Santo Timothy P

SEC Form 4 filed by Stanton Thomas R

SEC Form 4 filed by Santo Timothy P

Director Jacqueline Hourigan Rice sold $148,238 worth of shares (14,406 units at $10.29), decreasing direct ownership by 51% to 13,809 units (SEC Form 4)

Amendment: Chairman & CEO Stanton Thomas R was granted 39,735 shares, increasing direct ownership by 5% to 815,953 units (SEC Form 4)

Amendment: Chief Revenue Officer Wilson James Denson Jr covered exercise/tax liability with 1,309 shares, decreasing direct ownership by 1% to 127,701 units (SEC Form 4)

Chief Revenue Officer Wilson James Denson Jr was granted 3,777 shares and covered exercise/tax liability with 1,087 shares, increasing direct ownership by 2% to 127,923 units (SEC Form 4)

Chairman & CEO Stanton Thomas R was granted 27,973 shares and covered exercise/tax liability with 12,407 shares, increasing direct ownership by 2% to 955,471 units (SEC Form 4)

Chief Revenue Officer Wilson James Denson Jr covered exercise/tax liability with 2,225 shares, decreasing direct ownership by 2% to 125,233 units (SEC Form 4)

Chairman & CEO Stanton Thomas R covered exercise/tax liability with 31,944 shares, decreasing direct ownership by 3% to 939,905 units (SEC Form 4)

Chief Revenue Officer Wilson James Denson Jr covered exercise/tax liability with 765 shares, decreasing direct ownership by 0.60% to 127,458 units (SEC Form 4)

Chairman & CEO Stanton Thomas R covered exercise/tax liability with 10,247 shares, decreasing direct ownership by 1% to 971,849 units (SEC Form 4)

Director Walker Kathryn A was granted 13,809 shares, increasing direct ownership by 16% to 98,663 units (SEC Form 4)

Director Theodosopoulos Nikos was granted 13,809 shares, increasing direct ownership by 26% to 65,963 units (SEC Form 4)

Director Mccray Gregory James was granted 13,809 shares, increasing direct ownership by 23% to 72,893 units (SEC Form 4)

Director Nair Balan was granted 13,809 shares, increasing direct ownership by 12% to 125,373 units (SEC Form 4)

Director Huss H Fenwick was granted 13,809 shares, increasing direct ownership by 15% to 107,600 units (SEC Form 4)

Director Jacqueline Hourigan Rice was granted 13,809 shares, increasing direct ownership by 96% to 28,215 units (SEC Form 4)

SVP of Finance; CFO Santo Timothy P bought $49,323 worth of shares (6,150 units at $8.02), increasing direct ownership by 30% to 26,594 units (SEC Form 4)

Director Theodosopoulos Nikos bought $100,429 worth of shares (12,859 units at $7.81), increasing direct ownership by 33% to 52,154 units (SEC Form 4)

Chairman & CEO Stanton Thomas R bought $300,002 worth of shares (40,928 units at $7.33), increasing direct ownership by 4% to 982,096 units (SEC Form 4)

Chairman & CEO Stanton Thomas R covered exercise/tax liability with 3,355 shares, decreasing direct ownership by 0.36% to 941,168 units (SEC Form 4)

Chief Revenue Officer Wilson James Denson Jr covered exercise/tax liability with 468 shares, decreasing direct ownership by 0.36% to 128,223 units (SEC Form 4)

Chairman & CEO Stanton Thomas R covered exercise/tax liability with 5,663 shares, decreasing direct ownership by 0.60% to 944,523 units (SEC Form 4)

Chairman & CEO Stanton Thomas R covered exercise/tax liability with 5,408 shares, decreasing direct ownership by 0.57% to 950,186 units (SEC Form 4)

SVP of Finance; CFO Santo Timothy P was granted 20,444 shares (SEC Form 4)

SEC Form 3 filed by new insider Santo Timothy P

Chief Revenue Officer Wilson James Denson Jr was granted 30,259 shares and covered exercise/tax liability with 5,053 shares, increasing direct ownership by 24% to 128,691 units (SEC Form 4)

Chief Technology Officer Glingener Christoph was granted 27,777 shares, increasing direct ownership by 147% to 46,645 units (SEC Form 4)

Chief Financial Officer Dopfer Ulrich was granted 32,675 shares and covered exercise/tax liability with 5,780 shares, increasing direct ownership by 126% to 48,195 units (SEC Form 4)

Chairman & CEO Stanton Thomas R was granted 199,219 shares and covered exercise/tax liability with 19,843 shares, increasing direct ownership by 23% to 955,594 units (SEC Form 4)

Chief Revenue Officer Wilson James Denson Jr covered exercise/tax liability with 765 shares, decreasing direct ownership by 0.73% to 103,485 units (SEC Form 4)

Chairman & CEO Stanton Thomas R covered exercise/tax liability with 6,395 shares, decreasing direct ownership by 0.82% to 776,218 units (SEC Form 4)

Chairman & CEO Stanton Thomas R covered exercise/tax liability with 6,018 shares, decreasing direct ownership by 0.76% to 782,613 units (SEC Form 4)

Director Walker Kathryn A was granted 14,406 shares, increasing direct ownership by 20% to 84,854 units (SEC Form 4)

Director Mccray Gregory James was granted 14,406 shares, increasing direct ownership by 32% to 59,084 units (SEC Form 4)

Director Jacqueline Hourigan Rice was granted 14,406 shares and gifted 16,349 shares, decreasing direct ownership by 12% to 14,406 units (SEC Form 4)

Director Huss H Fenwick was granted 14,406 shares, increasing direct ownership by 18% to 93,791 units (SEC Form 4)

Director Nair Balan was granted 14,406 shares, increasing direct ownership by 15% to 111,564 units (SEC Form 4)

Director Theodosopoulos Nikos was granted 14,406 shares, increasing direct ownership by 58% to 39,295 units (SEC Form 4)

Chief Revenue Officer Wilson James Denson Jr covered exercise/tax liability with 3,134 shares, decreasing direct ownership by 3% to 104,250 units (SEC Form 4)

Chairman & CEO Stanton Thomas R covered exercise/tax liability with 22,345 shares, decreasing direct ownership by 3% to 788,631 units (SEC Form 4)

Chairman & CEO Stanton Thomas R covered exercise/tax liability with 3,748 shares, decreasing direct ownership by 0.46% to 810,976 units (SEC Form 4)

Amendment: Chairman & CEO Stanton Thomas R covered exercise/tax liability with 41,906 shares, decreasing direct ownership by 5% to 814,724 units (SEC Form 4)

Chairman & CEO Stanton Thomas R covered exercise/tax liability with 72,549 shares, decreasing direct ownership by 8% to 784,081 units (SEC Form 4)

Dopfer Ulrich covered exercise/tax liability with 953 shares, decreasing direct ownership by 4% to 21,300 units (SEC Form 4)

Glingener Christoph covered exercise/tax liability with 801 shares, decreasing direct ownership by 4% to 18,868 units (SEC Form 4)

Wilson James Denson Jr was granted 11,516 shares, increasing direct ownership by 12% to 107,384 units (SEC Form 4)

Glingener Christoph was granted 12,044 shares, increasing direct ownership by 158% to 19,669 units (SEC Form 4)

Dopfer Ulrich was granted 13,321 shares, increasing direct ownership by 149% to 22,253 units (SEC Form 4)

Stanton Thomas R was granted 129,958 shares, increasing direct ownership by 18% to 856,630 units (SEC Form 4)

Wilson James Denson Jr covered exercise/tax liability with 1,096 shares, decreasing direct ownership by 1% to 95,868 units (SEC Form 4)

Stanton Thomas R covered exercise/tax liability with 10,817 shares, decreasing direct ownership by 1% to 726,672 units (SEC Form 4)

Mccray Gregory James returned $3 worth of shares to the company (0 units at $7.34), was granted 16,349 shares and converted options into 168 shares, increasing direct ownership by 59% to 44,678 units (SEC Form 4)

Protiva Brian converted options into 168 shares, returned $3 worth of shares to the company (0 units at $7.34) and was granted 16,349 shares, increasing direct ownership by 7% to 253,545 units (SEC Form 4)

Nair Balan converted options into 168 shares, returned $3 worth of shares to the company (0 units at $7.34) and was granted 16,349 shares, increasing direct ownership by 20% to 97,158 units (SEC Form 4)

Huss H Fenwick converted options into 168 shares, returned $3 worth of shares to the company (0 units at $7.34) and was granted 16,349 shares, increasing direct ownership by 26% to 79,385 units (SEC Form 4)