X0306 4 2021-03-08 0001514991 AMC Networks Inc. AMCX 0001316266 Gallagher James 11 PENN PLAZA NEW YORK NY 10001 1 EVP and General Counsel AMC Networks Inc. Class A Common Stock 2021-03-08 2021-03-08 4 D 0 8189 65.34 D 15017 D AMC Networks Inc. Class A Common Stock 2021-03-09 2021-03-09 4 A 0 14579 0 A 29596 D AMC Networks Inc. Class A Common Stock 2021-03-09 2021-03-09 4 F 0 5662 71.28 D 23934 D AMC Networks Inc. Class A Common Stock 2021-03-09 2021-03-09 4 M 0 4785 0 A 28719 D AMC Networks Inc. Class A Common Stock 2021-03-09 2021-03-09 4 F 0 2546 71.28 D 26173 D AMC Networks Inc. Class A Common Stock 2021-03-09 2021-03-09 4 M 0 3952 0 A 30125 D AMC Networks Inc. Class A Common Stock 2021-03-09 2021-03-09 4 F 0 2103 71.28 D 28022 D AMC Networks Inc. Class A Common Stock 2021-03-09 2021-03-09 4 M 0 9094 0 A 37116 D AMC Networks Inc. Class A Common Stock 2021-03-09 2021-03-09 4 F 0 4839 71.28 D 32277 D Restricted Stock Units 2021-03-09 2021-03-09 4 M 0 4785 D 2021-03-09 AMC Networks Inc. Class A Common Stock 4785 0 D Restricted Stock Units 2021-03-09 2021-03-09 4 M 0 3952 D 2022-03-09 AMC Networks Inc. Class A Common Stock 3952 3952 D Restricted Stock Units 2021-03-09 2021-03-09 4 M 0 9094 D 2023-03-09 AMC Networks Inc. Class A Common Stock 9094 18189 D This transaction was executed in multiple trades at prices ranging from $65.24 to $65.38 per share. The price reported above reflects the weighted average sales price. Mr. Gallagher hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. Each share of Class A common stock was issued on March 9, 2021 upon the vesting of performance restricted stock units ("PRSUs"). The PRSUs were initially granted on March 9, 2017 under the AMC Networks Inc. 2016 Employee Stock Plan, and the number of shares of Class A common stock issued on March 9, 2021 was determined based on the achievement of performance criteria established at the time of grant. Represents PRSUs of AMC Networks Inc. withheld to satisfy tax withholding obligations in connection with the vesting of PRSUs described in footnote 2 above, exempt under Rule 16b-3. Each restricted stock unit ("RSU") was granted on March 9, 2018 under the AMC Networks Inc. 2016 Employee Stock Plan and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof. One-third of the RSUs vested and were settled on March 9, 2020 and one-third of the RSUs vested and were settled on March 9, 2019. The remaining one-third of the RSUs vested and were settled on March 9, 2021. Represents RSUs of AMC Networks Inc. withheld to satisfy tax withholding obligations in connection with the vesting of RSUs described in footnote 4 above, exempt under Rule 16b-3. Each restricted stock unit ("RSU") was granted on March 9, 2019 under the AMC Networks Inc. 2016 Employee Stock Plan and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof. One-third of the RSUs vested and were settled on March 9, 2021 and one-third of the RSUs vested and were settled on March 9, 2020. The remaining one-third of the RSUs will vest on March 9, 2022 subject to the achievement of certain performance measures. Represents RSUs of AMC Networks Inc. withheld to satisfy tax withholding obligations in connection with the vesting of RSUs described in footnote 6 above, exempt under Rule 16b-3. Each restricted stock unit ("RSU") was granted on March 8, 2020 under the AMC Networks Inc. 2016 Employee Stock Plan and represents a right to receive one share of Class A Common Stock or the cash equivalent thereof. One-third of the RSUs vested and were settled on March 9, 2021. The remaining two-thirds of the RSUs vest as follows: one-third on March 9, 2022 and one-third on March 9, 2023. Represents RSUs of AMC Networks Inc. withheld to satisfy tax withholding obligations in connection with the vesting of RSUs described in footnote 8 above, exempt under Rule 16b-3. /s/ Anne G. Kelly, Attorney-in-Fact for James Gallagher 2021-03-10