OPTU

SEC source: 0000947871-18-000754 · ownership.xml · nonDerivative · entry 1

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 6,431,268

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.53% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of six executive board members, one of whom is Mr. Drahi, and two non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Altice Europe N.V. owns a direct controlling interest in CVC 3 B.V. ("CVC 3"). Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3.

F3 · ownership.nature: Mr. Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Mr. Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000746 · ownership.xml · nonDerivative · entry 1

Mink Victoria · CIK 0001524670 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 189,143

F1 · price: Represents the weighted average sales price of the shares sold ranging from a low of $18.98 to a high of $19.02 per share. The Reporting Person undertakes, upon request by the Commission staff, the Issuer or a security holder of the Issuer, to provide full information regarding the number of shares sold at each separate price.

SEC source: 0000947871-18-000732 · ownership.xml · derivative · entry 1

Connolly David · CIK 0001708732 · Executive VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,055

Underlying: Class A common stock · 77,055 shares

Expires 2028-08-29

F1 · derivative.exercise_date: These options were granted under the Altice USA 2017 Long Term Incentive Plan and are scheduled to vest on 08/29/2021.

SEC source: 0000947871-18-000705 · ownership.xml · derivative · entry 5

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 33,896,545

Underlying: Class A common stock · 259,148 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F1 · derivative.exercise_date: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F1 · derivative.expiration_date: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.53% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of six executive board members, one of whom is Mr. Drahi, and two non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Altice Europe N.V. owns a direct controlling interest in CVC 3 B.V. ("CVC 3"). Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3.

F3 · ownership.nature: Mr. Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Mr. Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000705 · ownership.xml · nonDerivative · entry 1

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 6,353,781

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.53% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of six executive board members, one of whom is Mr. Drahi, and two non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Altice Europe N.V. owns a direct controlling interest in CVC 3 B.V. ("CVC 3"). Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3.

F3 · ownership.nature: Mr. Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Mr. Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000704 · ownership.xml · derivative · entry 3

Connolly David · CIK 0001708732 · Executive VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 329,690

Underlying: Class A common stock · 270,558 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

F3 · derivative.exercise_date: These Class C Units vested 50% on August 22, 2018 and vest 25% on August 22, 2019 and 25% on August 22, 2020.

F3 · derivative.expiration_date: These Class C Units vested 50% on August 22, 2018 and vest 25% on August 22, 2019 and 25% on August 22, 2020.

SEC source: 0000947871-18-000704 · ownership.xml · nonDerivative · entry 2

Connolly David · CIK 0001708732 · Executive VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 141,558

F2 · price: Represents the weighted average sales price of the shares sold ranging from a low of $18.15 to a high of $18.53 per share. The Reporting Person undertakes, upon request by the Commission staff, the Issuer or a security holder of the Issuer, to provide full information regarding the number of shares sold at each separate price.

SEC source: 0000947871-18-000704 · ownership.xml · nonDerivative · entry 1

Connolly David · CIK 0001708732 · Executive VP & General Counsel

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 270,558

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

SEC source: 0000947871-18-000628 · ownership.xml · derivative · entry 5

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 34,426,251

Underlying: Class A Common Stock · 156,287 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F1 · derivative.exercise_date: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F1 · derivative.expiration_date: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.53% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of six executive board members, one of whom is Mr. Drahi, and two non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Altice Europe N.V. owns a direct controlling interest in CVC 3 B.V. ("CVC 3"). Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3.

F3 · ownership.nature: Mr. Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Mr. Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000628 · ownership.xml · nonDerivative · entry 1

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 6,094,633

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.53% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of six executive board members, one of whom is Mr. Drahi, and two non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Altice Europe N.V. owns a direct controlling interest in CVC 3 B.V. ("CVC 3"). Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3.

F3 · ownership.nature: Mr. Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Mr. Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000552 · ss98885_4.xml · derivative · entry 5

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 34,738,444

Underlying: Class A common stock · 94,070 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F1 · derivative.exercise_date: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F1 · derivative.expiration_date: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.54% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of four executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Altice Europe N.V. owns a direct controlling interest in CVC 3 B.V. ("CVC 3"). Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3.

F3 · ownership.nature: Mr. Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Mr. Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000552 · ss98885_4.xml · nonDerivative · entry 1

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 5,938,346

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.54% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of four executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Altice Europe N.V. owns a direct controlling interest in CVC 3 B.V. ("CVC 3"). Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3.

F3 · ownership.nature: Mr. Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Mr. Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000537 · ownership.xml · derivative · entry 1

Mink Victoria · CIK 0001524670 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,677

Underlying: Class A common stock · 42,677 shares

Expires 2028-06-27

F1 · derivative.exercise_date: These Options were granted under the Altice USA 2017 Long Term Incentive Plan and are scheduled to vest on 06/27/2021.

SEC source: 0000947871-18-000527 · ss97276_4.xml · nonDerivative · entry 3

Rosenblum Lisa · CIK 0001708951 · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 148,037

F3 · price: Represents the weighted average sales price of the shares sold ranging from a low of $16.72 to a high of $17.25 per share. The Reporting Person undertakes, upon request by the Commission staff, the Issuer or a security holder of the Issuer, to provide full information regarding the number of shares sold at each separate price.

SEC source: 0000947871-18-000526 · ss97275_4.xml · derivative · entry 2

Mink Victoria · CIK 0001524670 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 235,561

Underlying: Class A common stock · 188,143 shares

Expires not disclosed

F1 · derivative.exercise_price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

F1 · derivative.exercise_date: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

F1 · derivative.expiration_date: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

SEC source: 0000947871-18-000526 · ss97275_4.xml · nonDerivative · entry 1

Mink Victoria · CIK 0001524670 · SVP & Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 226,645

F1 · price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

SEC source: 0000947871-18-000527 · ss97276_4.xml · derivative · entry 4

Rosenblum Lisa · CIK 0001708951 · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 471,122

Underlying: Class A common stock · 376,286 shares

Expires not disclosed

F1 · derivative.exercise_price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

F1 · derivative.exercise_date: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

F1 · derivative.expiration_date: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

SEC source: 0000947871-18-000527 · ss97276_4.xml · nonDerivative · entry 2

Rosenblum Lisa · CIK 0001708951 · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 338,037

F2 · price: Represents the weighted average sales price of the shares sold ranging from a low of $16.90 to a high of $17.10 per share. The Reporting Person undertakes, upon request by the Commission staff, the Issuer or a security holder of the Issuer, to provide full information regarding the number of shares sold at each separate price.

SEC source: 0000947871-18-000527 · ss97276_4.xml · nonDerivative · entry 1

Rosenblum Lisa · CIK 0001708951 · Vice Chairman

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 398,037

F1 · price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

SEC source: 0000947871-18-000528 · ss97274_4.xml · derivative · entry 7

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 22,394,782

Underlying: Class A common stock · 234,169 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. These Class C Units vest with CVC 3 upon the termination of employment of certain participants in the Neptune Management Limited Partnership Carry Unit Plan. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US LP.

F5 · derivative.exercise_date: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. These Class C Units vest with CVC 3 upon the termination of employment of certain participants in the Neptune Management Limited Partnership Carry Unit Plan. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US LP.

F5 · derivative.expiration_date: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. These Class C Units vest with CVC 3 upon the termination of employment of certain participants in the Neptune Management Limited Partnership Carry Unit Plan. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US LP.

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.54% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of four executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Altice Europe N.V. owns a direct controlling interest in CVC 3 B.V. ("CVC 3"). Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3.

F3 · ownership.nature: Mr. Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Mr. Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000528 · ss97274_4.xml · derivative · entry 6

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 34,925,799

Underlying: Class A common stock · 5,354,761 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F1 · derivative.exercise_date: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F1 · derivative.expiration_date: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.54% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of four executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Altice Europe N.V. owns a direct controlling interest in CVC 3 B.V. ("CVC 3"). Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3.

F3 · ownership.nature: Mr. Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Mr. Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000528 · ss97274_4.xml · nonDerivative · entry 2

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 5,844,276

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. These Class C Units vest with CVC 3 upon the termination of employment of certain participants in the Neptune Management Limited Partnership Carry Unit Plan. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US LP.

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.54% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of four executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Altice Europe N.V. owns a direct controlling interest in CVC 3 B.V. ("CVC 3"). Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3.

F3 · ownership.nature: Mr. Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Mr. Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000528 · ss97274_4.xml · nonDerivative · entry 1

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 5,610,107

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.54% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of four executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Altice Europe N.V. owns a direct controlling interest in CVC 3 B.V. ("CVC 3"). Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3.

F3 · ownership.nature: Mr. Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Mr. Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000503 · ss95740_4.xml · derivative · entry 10

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Altice Europe N.V. · CIK 0001709686 · See Remarks

CVC 3 B.V. · CIK 0001709684 · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,819,573

Underlying: Class A common stock · 33,819,573 shares

Expires not disclosed

F7 · derivative.exercise_price: On November 24, 2015, Next Alt entered into a series of capped call transactions (the "Capped Calls") with a financial institution counterparty over a certain number of Altice Europe N.V. ordinary "A" shares, which, due to the Distribution, is to be adjusted to reference "baskets" of securities covering those Altice Europe N.V. shares and 33,819,573 shares of Class A common stock of the Issuer. The Capped Calls will expire in equal tranches over a 252 scheduled trading day period, beginning in November 2020. For each Capped Call (of which there are three on each trading day, each at different strike prices), Next Alt will be required to deliver to the counterparty a number of Altice Europe N.V. ordinary "A" shares and 0.4163 shares of Class A common stock of the Issuer for each such Altice Europe N.V. share equal to:

F8 · derivative.exercise_price: (i) if the then-current value of the basket (the "Settlement Price") is below the lower strike price (80%, 85% or 90% of the reference price), zero; (ii) if the Settlement Price is equal to or above the lower strike price but is equal to or below the higher strike price (127.50%, 132.50% or 137.50% of the reference price), then (x) the product of the number of shares under such Capped Call and the lower strike price divided by (y) the Settlement Price; or (iii) if the Settlement Price is above the higher strike price, (x) the product of (A) the number of shares under such Capped Call and (B) the sum of (I) the lower strike price and (II) the excess, if any, of the market value of the basket over the higher strike price divided by the market value of the basket.

F5 · kind: Certain of the Altice Europe N.V. shares held by Reporting Persons were subject to derivative positions. Upon the Distribution, these derivatives attached to Issuer shares on a pro rata basis.

F7 · price: On November 24, 2015, Next Alt entered into a series of capped call transactions (the "Capped Calls") with a financial institution counterparty over a certain number of Altice Europe N.V. ordinary "A" shares, which, due to the Distribution, is to be adjusted to reference "baskets" of securities covering those Altice Europe N.V. shares and 33,819,573 shares of Class A common stock of the Issuer. The Capped Calls will expire in equal tranches over a 252 scheduled trading day period, beginning in November 2020. For each Capped Call (of which there are three on each trading day, each at different strike prices), Next Alt will be required to deliver to the counterparty a number of Altice Europe N.V. ordinary "A" shares and 0.4163 shares of Class A common stock of the Issuer for each such Altice Europe N.V. share equal to:

F8 · price: (i) if the then-current value of the basket (the "Settlement Price") is below the lower strike price (80%, 85% or 90% of the reference price), zero; (ii) if the Settlement Price is equal to or above the lower strike price but is equal to or below the higher strike price (127.50%, 132.50% or 137.50% of the reference price), then (x) the product of the number of shares under such Capped Call and the lower strike price divided by (y) the Settlement Price; or (iii) if the Settlement Price is above the higher strike price, (x) the product of (A) the number of shares under such Capped Call and (B) the sum of (I) the lower strike price and (II) the excess, if any, of the market value of the basket over the higher strike price divided by the market value of the basket.

F7 · derivative.exercise_date: On November 24, 2015, Next Alt entered into a series of capped call transactions (the "Capped Calls") with a financial institution counterparty over a certain number of Altice Europe N.V. ordinary "A" shares, which, due to the Distribution, is to be adjusted to reference "baskets" of securities covering those Altice Europe N.V. shares and 33,819,573 shares of Class A common stock of the Issuer. The Capped Calls will expire in equal tranches over a 252 scheduled trading day period, beginning in November 2020. For each Capped Call (of which there are three on each trading day, each at different strike prices), Next Alt will be required to deliver to the counterparty a number of Altice Europe N.V. ordinary "A" shares and 0.4163 shares of Class A common stock of the Issuer for each such Altice Europe N.V. share equal to:

F8 · derivative.exercise_date: (i) if the then-current value of the basket (the "Settlement Price") is below the lower strike price (80%, 85% or 90% of the reference price), zero; (ii) if the Settlement Price is equal to or above the lower strike price but is equal to or below the higher strike price (127.50%, 132.50% or 137.50% of the reference price), then (x) the product of the number of shares under such Capped Call and the lower strike price divided by (y) the Settlement Price; or (iii) if the Settlement Price is above the higher strike price, (x) the product of (A) the number of shares under such Capped Call and (B) the sum of (I) the lower strike price and (II) the excess, if any, of the market value of the basket over the higher strike price divided by the market value of the basket.

F7 · derivative.expiration_date: On November 24, 2015, Next Alt entered into a series of capped call transactions (the "Capped Calls") with a financial institution counterparty over a certain number of Altice Europe N.V. ordinary "A" shares, which, due to the Distribution, is to be adjusted to reference "baskets" of securities covering those Altice Europe N.V. shares and 33,819,573 shares of Class A common stock of the Issuer. The Capped Calls will expire in equal tranches over a 252 scheduled trading day period, beginning in November 2020. For each Capped Call (of which there are three on each trading day, each at different strike prices), Next Alt will be required to deliver to the counterparty a number of Altice Europe N.V. ordinary "A" shares and 0.4163 shares of Class A common stock of the Issuer for each such Altice Europe N.V. share equal to:

F8 · derivative.expiration_date: (i) if the then-current value of the basket (the "Settlement Price") is below the lower strike price (80%, 85% or 90% of the reference price), zero; (ii) if the Settlement Price is equal to or above the lower strike price but is equal to or below the higher strike price (127.50%, 132.50% or 137.50% of the reference price), then (x) the product of the number of shares under such Capped Call and the lower strike price divided by (y) the Settlement Price; or (iii) if the Settlement Price is above the higher strike price, (x) the product of (A) the number of shares under such Capped Call and (B) the sum of (I) the lower strike price and (II) the excess, if any, of the market value of the basket over the higher strike price divided by the market value of the basket.

SEC source: 0000947871-18-000503 · ss95740_4.xml · derivative · entry 9

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Altice Europe N.V. · CIK 0001709686 · See Remarks

CVC 3 B.V. · CIK 0001709684 · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Altice Europe N.V.

Disclosed balance after: 1,699,908

Underlying: Class A common stock · 1,699,908 shares

Expires not disclosed

F6 · derivative.exercise_price: On May 1, 2018, Altice Europe N.V. entered into a share forward transaction contract (the "Forward Contract") with a financial institution counterparty. Pursuant to the Forward Contract, in exchange for a payment from the counterparty upon settlement in December 2018, Altice Europe N.V. would be required to deliver to the counterparty a certain number of Altice Europe N.V. shares, which, due to the Distribution, is to be adjusted to reference "baskets" of securities covering those Altice Europe N.V. shares and 1,699,908 shares of Class A common stock of the Issuer.

F5 · kind: Certain of the Altice Europe N.V. shares held by Reporting Persons were subject to derivative positions. Upon the Distribution, these derivatives attached to Issuer shares on a pro rata basis.

F6 · price: On May 1, 2018, Altice Europe N.V. entered into a share forward transaction contract (the "Forward Contract") with a financial institution counterparty. Pursuant to the Forward Contract, in exchange for a payment from the counterparty upon settlement in December 2018, Altice Europe N.V. would be required to deliver to the counterparty a certain number of Altice Europe N.V. shares, which, due to the Distribution, is to be adjusted to reference "baskets" of securities covering those Altice Europe N.V. shares and 1,699,908 shares of Class A common stock of the Issuer.

F6 · derivative.exercise_date: On May 1, 2018, Altice Europe N.V. entered into a share forward transaction contract (the "Forward Contract") with a financial institution counterparty. Pursuant to the Forward Contract, in exchange for a payment from the counterparty upon settlement in December 2018, Altice Europe N.V. would be required to deliver to the counterparty a certain number of Altice Europe N.V. shares, which, due to the Distribution, is to be adjusted to reference "baskets" of securities covering those Altice Europe N.V. shares and 1,699,908 shares of Class A common stock of the Issuer.

F6 · derivative.expiration_date: On May 1, 2018, Altice Europe N.V. entered into a share forward transaction contract (the "Forward Contract") with a financial institution counterparty. Pursuant to the Forward Contract, in exchange for a payment from the counterparty upon settlement in December 2018, Altice Europe N.V. would be required to deliver to the counterparty a certain number of Altice Europe N.V. shares, which, due to the Distribution, is to be adjusted to reference "baskets" of securities covering those Altice Europe N.V. shares and 1,699,908 shares of Class A common stock of the Issuer.

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.54% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of four executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Mr. Drahi and Next Alt may each be deemed to beneficially own the shares of the Issuer owned by Altice Europe N.V.

F3 · ownership.nature: Altice Europe N.V. owns a direct controlling interest in CVC 3. Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. Patrick Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Patrick Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000503 · ss95740_4.xml · nonDerivative · entry 6

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Altice Europe N.V. · CIK 0001709686 · See Remarks

CVC 3 B.V. · CIK 0001709684 · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Altice Europe N.V.

Disclosed balance after: 0

F1 · kind: On June 8, 2018, Altice N.V. was renamed Altice Europe N.V. and effected a pro rata distribution in kind (the "Distribution") of Issuer's Class A and Class B common stock to holders of Altice Europe N.V.'s common shares A and common shares B, as described in the Form S-1 filed by the Issuer with the Securities and Exchange Commission, effective May 23, 2018. In connection with the Distribution, control over Neptune Holding US GP LLC was transferred from CVC 3 B.V. ("CVC 3") to the Issuer. Certain of the Reporting Persons hold Altice Europe N.V. shares and, therefore, received shares of the Issuer in the Distribution in transactions exempt from reporting pursuant to Rule 16a-9 under the Securities Exchange Act of 1934, as amended, which are reflected in the amount of shares reported as beneficially owned after the transactions reported in this Form 4.

F1 · price: On June 8, 2018, Altice N.V. was renamed Altice Europe N.V. and effected a pro rata distribution in kind (the "Distribution") of Issuer's Class A and Class B common stock to holders of Altice Europe N.V.'s common shares A and common shares B, as described in the Form S-1 filed by the Issuer with the Securities and Exchange Commission, effective May 23, 2018. In connection with the Distribution, control over Neptune Holding US GP LLC was transferred from CVC 3 B.V. ("CVC 3") to the Issuer. Certain of the Reporting Persons hold Altice Europe N.V. shares and, therefore, received shares of the Issuer in the Distribution in transactions exempt from reporting pursuant to Rule 16a-9 under the Securities Exchange Act of 1934, as amended, which are reflected in the amount of shares reported as beneficially owned after the transactions reported in this Form 4.

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.54% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of four executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Mr. Drahi and Next Alt may each be deemed to beneficially own the shares of the Issuer owned by Altice Europe N.V.

F3 · ownership.nature: Altice Europe N.V. owns a direct controlling interest in CVC 3. Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. Patrick Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Patrick Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000503 · ss95740_4.xml · nonDerivative · entry 1

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Altice Europe N.V. · CIK 0001709686 · See Remarks

CVC 3 B.V. · CIK 0001709684 · See Remarks

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Altice Europe N.V.

Disclosed balance after: 0

F1 · kind: On June 8, 2018, Altice N.V. was renamed Altice Europe N.V. and effected a pro rata distribution in kind (the "Distribution") of Issuer's Class A and Class B common stock to holders of Altice Europe N.V.'s common shares A and common shares B, as described in the Form S-1 filed by the Issuer with the Securities and Exchange Commission, effective May 23, 2018. In connection with the Distribution, control over Neptune Holding US GP LLC was transferred from CVC 3 B.V. ("CVC 3") to the Issuer. Certain of the Reporting Persons hold Altice Europe N.V. shares and, therefore, received shares of the Issuer in the Distribution in transactions exempt from reporting pursuant to Rule 16a-9 under the Securities Exchange Act of 1934, as amended, which are reflected in the amount of shares reported as beneficially owned after the transactions reported in this Form 4.

F1 · price: On June 8, 2018, Altice N.V. was renamed Altice Europe N.V. and effected a pro rata distribution in kind (the "Distribution") of Issuer's Class A and Class B common stock to holders of Altice Europe N.V.'s common shares A and common shares B, as described in the Form S-1 filed by the Issuer with the Securities and Exchange Commission, effective May 23, 2018. In connection with the Distribution, control over Neptune Holding US GP LLC was transferred from CVC 3 B.V. ("CVC 3") to the Issuer. Certain of the Reporting Persons hold Altice Europe N.V. shares and, therefore, received shares of the Issuer in the Distribution in transactions exempt from reporting pursuant to Rule 16a-9 under the Securities Exchange Act of 1934, as amended, which are reflected in the amount of shares reported as beneficially owned after the transactions reported in this Form 4.

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is the holder of 67.54% of the share capital and voting rights of Altice Europe N.V. Altice Europe N.V. maintains a one-tier board of four executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Mr. Drahi and Next Alt may each be deemed to beneficially own the shares of the Issuer owned by Altice Europe N.V.

F3 · ownership.nature: Altice Europe N.V. owns a direct controlling interest in CVC 3. Mr. Drahi, Next Alt and Altice Europe N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. Patrick Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext. A4 S.A., which is controlled by the family of Mr. Drahi, is an executive board member of Altice Europe N.V. Patrick Drahi is a director of the Issuer and Next Alt and A4 S.A. are parties to a stockholders agreement with the Issuer pursuant to which they have certain rights to appoint directors of the Issuer.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000499 · ss95259_4.xml · derivative · entry 13

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Altice N.V. · CIK 0001709686 · Director · 10% owner

CVC 3 B.V. · CIK 0001709684 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Neptune Holding US LP

Disclosed balance after: 45,652,087

Underlying: Class A common stock · 522,697 shares

Expires not disclosed

F6 · derivative.exercise_price: Neptune Holding US LP has an obligation to settle Class A Units and vested Class C and Class B-2 Units in either Class A common stock or a cash payment equivalent thereto. On June 6, 2018, Class A common stock was distributed to an employee following settlement of Class C Units held by such person and to CVC3 in respect of Class A Units.

F6 · derivative.exercise_date: Neptune Holding US LP has an obligation to settle Class A Units and vested Class C and Class B-2 Units in either Class A common stock or a cash payment equivalent thereto. On June 6, 2018, Class A common stock was distributed to an employee following settlement of Class C Units held by such person and to CVC3 in respect of Class A Units.

F6 · derivative.expiration_date: Neptune Holding US LP has an obligation to settle Class A Units and vested Class C and Class B-2 Units in either Class A common stock or a cash payment equivalent thereto. On June 6, 2018, Class A common stock was distributed to an employee following settlement of Class C Units held by such person and to CVC3 in respect of Class A Units.

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is holder of 67.54% of the share capital and voting rights of Altice N.V. Altice N.V. maintains a one-tier board of three executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Mr. Drahi and Next Alt may each be deemed to beneficially own the shares of the Issuer owned by Altice N.V.

F3 · ownership.nature: CVC 3 B.V. ("CVC 3") held more than 10% of the Class A common stock of the Issuer on an as converted basis. Altice N.V. owns a direct controlling interest in CVC 3. Mr. Drahi, Next Alt and Altice N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. CVC 3 is the sole member of Neptune Holding US GP LLC, which is the sole general partner of Neptune Holdings US LP. Mr. Drahi, Next Alt, Altice N.V. and CVC 3 may each be deemed to beneficially own shares of the Issuer held by Neptune Holding US LP.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000499 · ss95259_4.xml · derivative · entry 12

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Altice N.V. · CIK 0001709686 · Director · 10% owner

CVC 3 B.V. · CIK 0001709684 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 45,652,087

Underlying: Class A common stock · 255,346 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F1 · derivative.exercise_date: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F1 · derivative.expiration_date: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is holder of 67.54% of the share capital and voting rights of Altice N.V. Altice N.V. maintains a one-tier board of three executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Mr. Drahi and Next Alt may each be deemed to beneficially own the shares of the Issuer owned by Altice N.V.

F3 · ownership.nature: CVC 3 B.V. ("CVC 3") held more than 10% of the Class A common stock of the Issuer on an as converted basis. Altice N.V. owns a direct controlling interest in CVC 3. Mr. Drahi, Next Alt and Altice N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. CVC 3 is the sole member of Neptune Holding US GP LLC, which is the sole general partner of Neptune Holdings US LP. Mr. Drahi, Next Alt, Altice N.V. and CVC 3 may each be deemed to beneficially own shares of the Issuer held by Neptune Holding US LP.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000499 · ss95259_4.xml · nonDerivative · entry 8

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Altice N.V. · CIK 0001709686 · Director · 10% owner

CVC 3 B.V. · CIK 0001709684 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 247,683,443

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · price: In preparation for a pro rata distribution in kind (the "Distribution") of Issuer's Class A common stock and Class B common stock that was beneficially owned by CVC 3 to holders of Altice N.V.'s common shares A and common shares B, as described in the Form S-1 filed by the Issuer with the Securities and Exchange Commission, effective May 23, 2018, CVC 3 converted Class B common stock of the Issuer into Class A common stock of the Issuer, pursuant to the Issuer's certificate of Incorporation, as amended and restated.

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is holder of 67.54% of the share capital and voting rights of Altice N.V. Altice N.V. maintains a one-tier board of three executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Mr. Drahi and Next Alt may each be deemed to beneficially own the shares of the Issuer owned by Altice N.V.

F3 · ownership.nature: CVC 3 B.V. ("CVC 3") held more than 10% of the Class A common stock of the Issuer on an as converted basis. Altice N.V. owns a direct controlling interest in CVC 3. Mr. Drahi, Next Alt and Altice N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. CVC 3 is the sole member of Neptune Holding US GP LLC, which is the sole general partner of Neptune Holdings US LP. Mr. Drahi, Next Alt, Altice N.V. and CVC 3 may each be deemed to beneficially own shares of the Issuer held by Neptune Holding US LP.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000499 · ss95259_4.xml · nonDerivative · entry 3

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Altice N.V. · CIK 0001709686 · Director · 10% owner

CVC 3 B.V. · CIK 0001709684 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Neptune Holding US LP

Disclosed balance after: 45,652,087

F6 · price: Neptune Holding US LP has an obligation to settle Class A Units and vested Class C and Class B-2 Units in either Class A common stock or a cash payment equivalent thereto. On June 6, 2018, Class A common stock was distributed to an employee following settlement of Class C Units held by such person and to CVC3 in respect of Class A Units.

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is holder of 67.54% of the share capital and voting rights of Altice N.V. Altice N.V. maintains a one-tier board of three executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Mr. Drahi and Next Alt may each be deemed to beneficially own the shares of the Issuer owned by Altice N.V.

F3 · ownership.nature: CVC 3 B.V. ("CVC 3") held more than 10% of the Class A common stock of the Issuer on an as converted basis. Altice N.V. owns a direct controlling interest in CVC 3. Mr. Drahi, Next Alt and Altice N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. CVC 3 is the sole member of Neptune Holding US GP LLC, which is the sole general partner of Neptune Holdings US LP. Mr. Drahi, Next Alt, Altice N.V. and CVC 3 may each be deemed to beneficially own shares of the Issuer held by Neptune Holding US LP.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000499 · ss95259_4.xml · nonDerivative · entry 2

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Altice N.V. · CIK 0001709686 · Director · 10% owner

CVC 3 B.V. · CIK 0001709684 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 247,938,835

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · price: In preparation for a pro rata distribution in kind (the "Distribution") of Issuer's Class A common stock and Class B common stock that was beneficially owned by CVC 3 to holders of Altice N.V.'s common shares A and common shares B, as described in the Form S-1 filed by the Issuer with the Securities and Exchange Commission, effective May 23, 2018, CVC 3 converted Class B common stock of the Issuer into Class A common stock of the Issuer, pursuant to the Issuer's certificate of Incorporation, as amended and restated.

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is holder of 67.54% of the share capital and voting rights of Altice N.V. Altice N.V. maintains a one-tier board of three executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Mr. Drahi and Next Alt may each be deemed to beneficially own the shares of the Issuer owned by Altice N.V.

F3 · ownership.nature: CVC 3 B.V. ("CVC 3") held more than 10% of the Class A common stock of the Issuer on an as converted basis. Altice N.V. owns a direct controlling interest in CVC 3. Mr. Drahi, Next Alt and Altice N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. CVC 3 is the sole member of Neptune Holding US GP LLC, which is the sole general partner of Neptune Holdings US LP. Mr. Drahi, Next Alt, Altice N.V. and CVC 3 may each be deemed to beneficially own shares of the Issuer held by Neptune Holding US LP.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000499 · ss95259_4.xml · nonDerivative · entry 1

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

Altice N.V. · CIK 0001709686 · Director · 10% owner

CVC 3 B.V. · CIK 0001709684 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 5,536,604

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Class A Units represent a contingent right to receive shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US Limited Partnership ("Neptune Holding US LP").

F2 · ownership.nature: Next Alt S.a r.l. ("Next Alt") is a personal holding company of Mr. Drahi, who is its controlling shareholder. As of the date of this report, Next Alt is holder of 67.54% of the share capital and voting rights of Altice N.V. Altice N.V. maintains a one-tier board of three executive board members and three non-executive board members. The executive board members are appointed by shareholders at the general meeting at the binding nomination of Next Alt. Mr. Drahi and Next Alt may each be deemed to beneficially own the shares of the Issuer owned by Altice N.V.

F3 · ownership.nature: CVC 3 B.V. ("CVC 3") held more than 10% of the Class A common stock of the Issuer on an as converted basis. Altice N.V. owns a direct controlling interest in CVC 3. Mr. Drahi, Next Alt and Altice N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. CVC 3 is the sole member of Neptune Holding US GP LLC, which is the sole general partner of Neptune Holdings US LP. Mr. Drahi, Next Alt, Altice N.V. and CVC 3 may each be deemed to beneficially own shares of the Issuer held by Neptune Holding US LP.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000157 · ss79647_4.xml · derivative · entry 5

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

Altice N.V. · CIK 0001709686 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

CVC 3 B.V. · CIK 0001709684 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Neptune Holding US LP

Disclosed balance after: 46,174,784

Underlying: Class A common stock · 2,295 shares

Expires not disclosed

F2 · derivative.exercise_price: Neptune Holding US Limited Partnership ("Neptune Holding US LP") has an obligation to settle Class A Units and vested Class C and B-2 Units in either Class A common stock or a cash payment equivalent thereto.

F2 · derivative.exercise_date: Neptune Holding US Limited Partnership ("Neptune Holding US LP") has an obligation to settle Class A Units and vested Class C and B-2 Units in either Class A common stock or a cash payment equivalent thereto.

F2 · derivative.expiration_date: Neptune Holding US Limited Partnership ("Neptune Holding US LP") has an obligation to settle Class A Units and vested Class C and B-2 Units in either Class A common stock or a cash payment equivalent thereto.

F3 · ownership.nature: As of the date of this report, CVC 3 B.V. ("CVC 3") holds more than 10% of the Class A common stock of the Issuer on an as converted basis. Altice N.V. owns an indirect controlling interest in CVC 3. Mr. Drahi, Next Alt S.a r.l. ("Next Alt") and Altice N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. CVC 3 is the sole member of Neptune Holding US GP LLC, which is the sole general partner of Neptune Holdings US LP. As such, Mr. Drahi, Next Alt, Altice N.V. and CVC 3 may each be deemed to beneficially own shares of the Issuer held by Neptune Holding US LP.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000157 · ss79647_4.xml · nonDerivative · entry 1

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

Altice N.V. · CIK 0001709686 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

CVC 3 B.V. · CIK 0001709684 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Neptune Holding US LP

Disclosed balance after: 46,174,784

F1 · shares: Represents shares distributed to a former employee following settlement into Class A common stock of Class B-2 Units held by such person.

F2 · price: Neptune Holding US Limited Partnership ("Neptune Holding US LP") has an obligation to settle Class A Units and vested Class C and B-2 Units in either Class A common stock or a cash payment equivalent thereto.

F3 · ownership.nature: As of the date of this report, CVC 3 B.V. ("CVC 3") holds more than 10% of the Class A common stock of the Issuer on an as converted basis. Altice N.V. owns an indirect controlling interest in CVC 3. Mr. Drahi, Next Alt S.a r.l. ("Next Alt") and Altice N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. CVC 3 is the sole member of Neptune Holding US GP LLC, which is the sole general partner of Neptune Holdings US LP. As such, Mr. Drahi, Next Alt, Altice N.V. and CVC 3 may each be deemed to beneficially own shares of the Issuer held by Neptune Holding US LP.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000231 · ss80311_4a.xml · derivative · entry 5

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

Altice N.V. · CIK 0001709686 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

CVC 3 B.V. · CIK 0001709684 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Neptune Holding US LP

Disclosed balance after: 46,174,784

Underlying: Class A common stock · 2,295 shares

Expires not disclosed

F2 · derivative.exercise_price: Neptune Holding US Limited Partnership ("Neptune Holding US LP") has an obligation to settle Class A Units and vested Class C and B-2 Units in either Class A common stock or a cash payment equivalent thereto.

F2 · derivative.exercise_date: Neptune Holding US Limited Partnership ("Neptune Holding US LP") has an obligation to settle Class A Units and vested Class C and B-2 Units in either Class A common stock or a cash payment equivalent thereto.

F2 · derivative.expiration_date: Neptune Holding US Limited Partnership ("Neptune Holding US LP") has an obligation to settle Class A Units and vested Class C and B-2 Units in either Class A common stock or a cash payment equivalent thereto.

F3 · ownership.nature: As of the date of this report, CVC 3 B.V. ("CVC 3") holds more than 10% of the Class A common stock of the Issuer on an as converted basis. Altice N.V. owns an indirect controlling interest in CVC 3. Mr. Drahi, Next Alt S.a r.l. ("Next Alt") and Altice N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. CVC 3 is the sole member of Neptune Holding US GP LLC, which is the sole general partner of Neptune Holdings US LP. As such, Mr. Drahi, Next Alt, Altice N.V. and CVC 3 may each be deemed to beneficially own shares of the Issuer held by Neptune Holding US LP.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000231 · ss80311_4a.xml · nonDerivative · entry 1

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

Altice N.V. · CIK 0001709686 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

CVC 3 B.V. · CIK 0001709684 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Neptune Holding US LP

Disclosed balance after: 46,174,784

F1 · shares: Represents shares distributed to a former employee following settlement into Class A common stock of Class B-2 Units held by such person.

F2 · price: Neptune Holding US Limited Partnership ("Neptune Holding US LP") has an obligation to settle Class A Units and vested Class C and B-2 Units in either Class A common stock or a cash payment equivalent thereto.

F3 · ownership.nature: As of the date of this report, CVC 3 B.V. ("CVC 3") holds more than 10% of the Class A common stock of the Issuer on an as converted basis. Altice N.V. owns an indirect controlling interest in CVC 3. Mr. Drahi, Next Alt S.a r.l. ("Next Alt") and Altice N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. CVC 3 is the sole member of Neptune Holding US GP LLC, which is the sole general partner of Neptune Holdings US LP. As such, Mr. Drahi, Next Alt, Altice N.V. and CVC 3 may each be deemed to beneficially own shares of the Issuer held by Neptune Holding US LP.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-18-000011 · ss73517_4.xml · derivative · entry 1

Boubazine Abdelhakim · CIK 0001708709 · Co-President & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 256,668

Underlying: Class A common stock · 256,668 shares

Expires 2027-12-30

F1 · derivative.exercise_date: These Options were granted under the Altice USA 2017 Long Term Incentive Plan and are scheduled to vest on 12/21/2020.

SEC source: 0000947871-18-000009 · ss73516_4.xml · derivative · entry 1

Stewart Charles · CIK 0001708800 · Co-President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 256,668

Underlying: Class A common stock · 256,668 shares

Expires 2027-12-30

F1 · derivative.exercise_date: These Options were granted under the Altice USA 2017 Long Term Incentive Plan and are scheduled to vest on 12/21/2020.

SEC source: 0000947871-18-000008 · ss73515_4.xml · derivative · entry 1

Goei Dexter · CIK 0001708711 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,201,208

Underlying: Class A common stock · 1,201,208 shares

Expires 2027-12-30

F1 · derivative.exercise_date: These Options were granted under the Altice USA 2017 Long Term Incentive Plan and are scheduled to vest on 12/21/2020.

SEC source: 0000947871-18-000016 · ss73518_4.xml · derivative · entry 1

Drahi Patrick · CIK 0001709689 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 600,604

Underlying: Class A common stock · 600,604 shares

Expires 2027-12-30

F1 · derivative.exercise_date: These Options were granted under the Altice USA 2017 Long Term Incentive Plan and are scheduled to vest on 12/21/2020.

F2 · ownership.nature: These Options are held through a personal holding company that is wholly owned and controlled by the reporting person.

SEC source: 0000947871-17-001031 · ss73039_4.xml · derivative · entry 3

Goei Dexter · CIK 0001708711 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 876,316

Underlying: Class A common stock · 719,636 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

F2 · derivative.exercise_date: These Class C Units vested 50% on December 21, 2017 and vest 25% on December 21, 2018 and 25% on December 21, 2019.

F2 · derivative.expiration_date: These Class C Units vested 50% on December 21, 2017 and vest 25% on December 21, 2018 and 25% on December 21, 2019.

SEC source: 0000947871-17-001031 · ss73039_4.xml · nonDerivative · entry 1

Goei Dexter · CIK 0001708711 · Director · Chairman & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 719,636

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

SEC source: 0000947871-17-001033 · ss73042_4.xml · derivative · entry 2

Boubazine Abdelhakim · CIK 0001708709 · Co-President & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 775,501

Underlying: Class A common stock · 636,846 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

F2 · derivative.exercise_date: These Class C Units vested 50% on December 21, 2017 and vest 25% on December 21, 2018 and 25% on December 21, 2019.

F2 · derivative.expiration_date: These Class C Units vested 50% on December 21, 2017 and vest 25% on December 21, 2018 and 25% on December 21, 2019.

SEC source: 0000947871-17-001033 · ss73042_4.xml · nonDerivative · entry 1

Boubazine Abdelhakim · CIK 0001708709 · Co-President & COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,639,390

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

SEC source: 0000947871-17-001032 · ss73040_4.xml · derivative · entry 2

Stewart Charles · CIK 0001708800 · Co-President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 775,501

Underlying: Class A common stock · 636,846 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

F2 · derivative.exercise_date: These Class C Units vested 50% on December 21, 2017 and vest 25% on December 21, 2018 and 25% on December 21, 2019.

F2 · derivative.expiration_date: These Class C Units vested 50% on December 21, 2017 and vest 25% on December 21, 2018 and 25% on December 21, 2019.

SEC source: 0000947871-17-001032 · ss73040_4.xml · nonDerivative · entry 1

Stewart Charles · CIK 0001708800 · Co-President & CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 655,597

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

SEC source: 0000947871-17-001034 · ss73041_4.xml · derivative · entry 9

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

Altice N.V. · CIK 0001709686 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

CVC 3 B.V. · CIK 0001709684 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Neptune Holding US LP

Disclosed balance after: 46,177,079

Underlying: Class A common stock · 10,939,102 shares

Expires not disclosed

F9 · derivative.exercise_price: Neptune Holdings US LP has an obligation to settle Class A Units and vested Class C and B-2 Units in either Class A common stock or a cash payment equivalent thereto.

F9 · derivative.exercise_date: Neptune Holdings US LP has an obligation to settle Class A Units and vested Class C and B-2 Units in either Class A common stock or a cash payment equivalent thereto.

F9 · derivative.expiration_date: Neptune Holdings US LP has an obligation to settle Class A Units and vested Class C and B-2 Units in either Class A common stock or a cash payment equivalent thereto.

F1 · ownership.nature: As of the date of this report, CVC 3 B.V. ("CVC 3") holds more than 10% of the Class A common stock of the Issuer on an as converted basis. Altice N.V. owns an indirect controlling interest in CVC 3. Mr. Drahi, Next Alt S.a r.l. ("Next Alt") and Altice N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. CVC 3 is the sole member of Neptune Holding US GP LLC, which is the sole general partner of Neptune Holding US Limited Partnership ("Neptune Holding US LP"). As such, Mr. Drahi, Next Alt, Altice N.V. and CVC 3 may each be deemed to beneficially own shares of the Issuer held by Neptune Holding US LP.

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

SEC source: 0000947871-17-001034 · ss73041_4.xml · derivative · entry 8

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

Altice N.V. · CIK 0001709686 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

CVC 3 B.V. · CIK 0001709684 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · UpperNext S.C.S.p

Disclosed balance after: 876,316

Underlying: Class A common stock · 719,636 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

F8 · derivative.exercise_date: These Class C Units vested 50% on December 21, 2017 and vest 25% on December 21, 2018 and 25% on December 21, 2019.

F8 · derivative.expiration_date: These Class C Units vested 50% on December 21, 2017 and vest 25% on December 21, 2018 and 25% on December 21, 2019.

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.

F3 · ownership.nature: Patrick Drahi is the sole controlling shareholder of Uppernext S.C.S.p ("Uppernext"). As such, Mr. Drahi may be deemed to beneficially own shares of the Issuer held by Uppernext.

SEC source: 0000947871-17-001034 · ss73041_4.xml · derivative · entry 7

Next Alt S.a.r.l. · CIK 0001709662 · Director · 10% owner

Drahi Patrick · CIK 0001709689 · Director · 10% owner

Altice N.V. · CIK 0001709686 · Director · 10% owner

A4 S.A. · CIK 0001709665 · Director

CVC 3 B.V. · CIK 0001709684 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CVC 3 B.V.

Disclosed balance after: 26,628,689

Underlying: Class A common stock · 7,961 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Class C Units represent a contingent right to receive, following vesting, shares of Class A common stock of the Issuer in the discretion of Neptune Holding US GP LLC.

F7 · derivative.exercise_date: These Class C Units vest with CVC 3 upon the termination of employment of certain participants in the Neptune Management Limited Partnership Carry Unit Plan. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US LP.

F7 · derivative.expiration_date: These Class C Units vest with CVC 3 upon the termination of employment of certain participants in the Neptune Management Limited Partnership Carry Unit Plan. At the time a portion of this derivative security was converted to Class A common stock, as reported on this Form 4, another portion of this derivative security was canceled for no consideration due to other distributions of Class A common stock by Neptune Holding US LP.

F1 · ownership.nature: As of the date of this report, CVC 3 B.V. ("CVC 3") holds more than 10% of the Class A common stock of the Issuer on an as converted basis. Altice N.V. owns an indirect controlling interest in CVC 3. Mr. Drahi, Next Alt S.a r.l. ("Next Alt") and Altice N.V. may each be deemed to beneficially own the shares of the Issuer owned by CVC 3. CVC 3 is the sole member of Neptune Holding US GP LLC, which is the sole general partner of Neptune Holding US Limited Partnership ("Neptune Holding US LP"). As such, Mr. Drahi, Next Alt, Altice N.V. and CVC 3 may each be deemed to beneficially own shares of the Issuer held by Neptune Holding US LP.

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all interests reported on this Form 4 except to the extent of such Reporting Person's pecuniary interests.