ADTRAN, Inc. (NASDAQ:ADTN) Q4 2020 Earnings Conference Call February 4, 2021 10:30 AM ET Company Participants Tom Stanton – Chief Executive Officer Mike Foliano – Chief Financial Officer Conference Call Participants Bala Reddy – Goldman Sachs George Notter – Jefferies Rich Valera – Needham & Company Paul Silverstein – Cowen Bill Dezellem – Tieton Capital Operator Ladies and gentlemen, thank you for standing by, and welcome to ADTRAN’s Fourth Quarter 2020 Earnings Release Conference Call. All lines have been ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock, Par Value $0.01 per share ADTN The NASDAQ Global Select Market FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SE ...

ADTRAN, Inc. (NASDAQ:ADTN) Q3 2020 Earnings Conference Call November 3, 2020 10:30 AM ET Company Participants Tom Stanton - Chief Executive Officer Mike Foliano - Chief Financial Officer Conference Call Participants Rich Valera - Needham & Company Bala Reddy - Goldman Sachs Paul Silverstein - Cowen Bill Dezellem - Tieton Capital Fahad Najam - MKM Partners Tim Savageaux - Northland Capital Management Operator Ladies and gentlemen, thank you for standing by, and welcome to ADTRAN’s Third Quarter 2020 Earnings ...

ADTRAN, Inc. (NASDAQ:ADTN) Q2 2020 Earnings Conference Call August 6, 2020 10:30 AM ET Company Participants Tom Stanton - Chief Executive Officer Mike Foliano - Chief Financial Officer Conference Call Participants Rod Hall - Goldman Sachs Michael Genovese - MKM Partners Rich Valera - Needham and Company Fahad Najam - Cowen and Company Tim Savageaux - Northland Capital George Notter - Jefferies Paul Silverstein - Cowen Operator Ladies and gentlemen, thank you for standing by, and welcome to ADTRAN's Second ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _______ to _______ Commission File Number: 000-24612 ADTRAN, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 63-0918200 (State or other juri ...

ADTRAN, Inc. (NASDAQ:ADTN) Q1 2020 Earnings Conference Call May 7, 2020 10:30 AM ET Company Participants Thomas Stanton - Chairman & CEO Michael Foliano - SVP, Finance, CFO & Corporate Secretary Conference Call Participants Ashwin Kesireddy - Goldman Sachs Group Richard Valera - Needham & Company George Notter - Jefferies Michael Genovese - MKM Partners Paul Silverstein - Cowen and Company William Dezellem - Tieton Capital Management Timothy Savageaux - Northland Capital Markets Operator Ladies and gentlem ...

I will UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 Securities registered pursuant to Section 12(b) of the Act: Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock, Par Value $0.01 per share ADTN The NASDAQ Global Select Market FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2019 ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Transition Period from to Commission file number 000-24612 ADTRAN, Inc. (Exact name of registrant as specified in its charter) Delaware 63-0918200 (State of Incorporation) (I.R.S. Employer Identificat ...

ADTRAN, Inc. (NASDAQ:ADTN) Q4 2019 Earnings Conference Call February 6, 2020 10:30 AM ET Company Participants Tom Stanton - Chief Executive Officer Mike Foliano - Chief Financial Officer Conference Call Participants Rich Valera - Needham & Company Ashwin Kesireddy - Goldman Sachs George Notter - Jefferies Paul Silverstein - Cowen Fahad Najam - Cowen Operator Ladies and gentlemen, thank you for standing by and welcome to ADTRAN's Fourth Quarter 2019 Earnings Release Conference Call. All lines have been place ...