GLIBA

SEC source: 0001104659-26-106021 · tm2624982-1_4seq1.xml · derivative · entry 6

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F5 · kind: On September 8, 2026, the fifteenth and final component of the Collar settled in cash and the Reporting Person received a cash amount of $56,682. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-106021 · tm2624982-1_4seq1.xml · derivative · entry 5

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F5 · kind: On September 8, 2026, the fifteenth and final component of the Collar settled in cash and the Reporting Person received a cash amount of $56,682. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-106021 · tm2624982-1_4seq1.xml · derivative · entry 4

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,400

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F4 · kind: On September 4, 2026, the fourteenth component of the Collar settled in cash and the Reporting Person received a cash amount of $51,992. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-106021 · tm2624982-1_4seq1.xml · derivative · entry 3

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,400

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F4 · kind: On September 4, 2026, the fourteenth component of the Collar settled in cash and the Reporting Person received a cash amount of $51,992. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-106021 · tm2624982-1_4seq1.xml · derivative · entry 2

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,800

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F3 · kind: On September 3, 2026, the thirteenth component of the Collar settled in cash and the Reporting Person received a cash amount of $53,332. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-106021 · tm2624982-1_4seq1.xml · derivative · entry 1

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,800

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F3 · kind: On September 3, 2026, the thirteenth component of the Collar settled in cash and the Reporting Person received a cash amount of $53,332. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-104854 · tm2624673-1_4seq1.xml · derivative · entry 6

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,200

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F5 · kind: On September 2, 2026, the twelfth component of the Collar settled in cash and the Reporting Person received a cash amount of $53,332. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-104854 · tm2624673-1_4seq1.xml · derivative · entry 5

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,200

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F5 · kind: On September 2, 2026, the twelfth component of the Collar settled in cash and the Reporting Person received a cash amount of $53,332. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-104854 · tm2624673-1_4seq1.xml · derivative · entry 4

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,600

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F4 · kind: On September 1, 2026, the eleventh component of the Collar settled in cash and the Reporting Person received a cash amount of $58,290. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-104854 · tm2624673-1_4seq1.xml · derivative · entry 3

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,600

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F4 · kind: On September 1, 2026, the eleventh component of the Collar settled in cash and the Reporting Person received a cash amount of $58,290. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-104854 · tm2624673-1_4seq1.xml · derivative · entry 2

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,000

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F3 · kind: On August 31, 2026, the tenth component of the Collar settled in cash and the Reporting Person received a cash amount of $55,208. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-104854 · tm2624673-1_4seq1.xml · derivative · entry 1

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,000

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F3 · kind: On August 31, 2026, the tenth component of the Collar settled in cash and the Reporting Person received a cash amount of $55,208. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-103390 · tm2624251-1_4seq1.xml · derivative · entry 6

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,400

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F5 · kind: On August 28, 2026, the ninth component of the Collar settled in cash and the Reporting Person received a cash amount of $55,476. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-103390 · tm2624251-1_4seq1.xml · derivative · entry 5

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,400

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F5 · kind: On August 28, 2026, the ninth component of the Collar settled in cash and the Reporting Person received a cash amount of $55,476. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-103390 · tm2624251-1_4seq1.xml · derivative · entry 4

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,800

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F4 · kind: On August 27, 2026, the eighth component of the Collar settled in cash and the Reporting Person received a cash amount of $53,734. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-103390 · tm2624251-1_4seq1.xml · derivative · entry 3

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,800

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F4 · kind: On August 27, 2026, the eighth component of the Collar settled in cash and the Reporting Person received a cash amount of $53,734. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-103390 · tm2624251-1_4seq1.xml · derivative · entry 2

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 107,200

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F3 · kind: On August 26, 2026, the seventh component of the Collar settled in cash and the Reporting Person received a cash amount of $51,054. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-103390 · tm2624251-1_4seq1.xml · derivative · entry 1

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 107,200

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F3 · kind: On August 26, 2026, the seventh component of the Collar settled in cash and the Reporting Person received a cash amount of $51,054. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-100948 · tm2624003-1_4seq1.xml · derivative · entry 6

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,600

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F5 · kind: On August 25, 2026, the sixth component of the Collar settled in cash and the Reporting Person received a cash amount of $50,652. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-100948 · tm2624003-1_4seq1.xml · derivative · entry 5

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,600

Underlying: Series C GCI Group Common Stock · 13,400 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F5 · kind: On August 25, 2026, the sixth component of the Collar settled in cash and the Reporting Person received a cash amount of $50,652. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-100948 · tm2624003-1_4seq1.xml · derivative · entry 4

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,000

Underlying: Series C GCI Group Common Stock · 13,200 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F4 · kind: On August 24, 2026, the fifth component of the Collar settled in cash and the Reporting Person received a cash amount of $57,684. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-100948 · tm2624003-1_4seq1.xml · derivative · entry 3

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,000

Underlying: Series C GCI Group Common Stock · 13,200 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F4 · kind: On August 24, 2026, the fifth component of the Collar settled in cash and the Reporting Person received a cash amount of $57,684. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-100948 · tm2624003-1_4seq1.xml · derivative · entry 2

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 147,200

Underlying: Series C GCI Group Common Stock · 13,200 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F3 · kind: On August 21, 2026, the fourth component of the Collar settled in cash and the Reporting Person received a cash amount of $60,984. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-100948 · tm2624003-1_4seq1.xml · derivative · entry 1

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 147,200

Underlying: Series C GCI Group Common Stock · 13,200 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F3 · kind: On August 21, 2026, the fourth component of the Collar settled in cash and the Reporting Person received a cash amount of $60,984. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-099321 · tm2623697-1_4seq1.xml · derivative · entry 6

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 160,400

Underlying: Series C GCI Group Common Stock · 13,200 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F5 · kind: On August 20, 2026, the third component of the Collar settled in cash and the Reporting Person received a cash amount of $61,248. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-099321 · tm2623697-1_4seq1.xml · derivative · entry 5

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 160,400

Underlying: Series C GCI Group Common Stock · 13,200 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F5 · kind: On August 20, 2026, the third component of the Collar settled in cash and the Reporting Person received a cash amount of $61,248. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-099321 · tm2623697-1_4seq1.xml · derivative · entry 4

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 173,600

Underlying: Series C GCI Group Common Stock · 13,200 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F4 · kind: On August 19, 2026, the second component of the Collar settled in cash and the Reporting Person received a cash amount of $55,572. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-099321 · tm2623697-1_4seq1.xml · derivative · entry 3

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 173,600

Underlying: Series C GCI Group Common Stock · 13,200 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F4 · kind: On August 19, 2026, the second component of the Collar settled in cash and the Reporting Person received a cash amount of $55,572. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-099321 · tm2623697-1_4seq1.xml · derivative · entry 2

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 186,800

Underlying: Series C GCI Group Common Stock · 13,200 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F3 · kind: On August 18, 2026, the first component of the Collar settled in cash and the Reporting Person received a cash amount of $54,516. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001104659-26-099321 · tm2623697-1_4seq1.xml · derivative · entry 1

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 186,800

Underlying: Series C GCI Group Common Stock · 13,200 shares

Expires not disclosed

F1 · kind: As previously disclosed by the Reporting Person, on July 15, 2025, the Reporting Person was automatically deemed to have entered into a "zero-cost collar" arrangement with respect to 200,000 shares of the Issuer's Series C GCI Group Common Stock (the "Collar"), pursuant to which he wrote European call options and purchased European put options referencing shares of Series C GCI Group Common Stock. Only one of the options can be in the money on the expiration date, at which time the in-the-money options will be exercised, and the other options will expire. If neither the put options nor the call options are in the money on the expiration date, both the put and call options will expire. The Collar will be settled in cash unless the Reporting Person elects physical settlement.

F2 · kind: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F3 · kind: On August 18, 2026, the first component of the Collar settled in cash and the Reporting Person received a cash amount of $54,516. On the same date, the related call option expired unexercised.

F2 · derivative.exercise_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

F2 · derivative.expiration_date: The Collar is divided into 15 components, the first 5 of which are with respect to 13,200 shares of Series C GCI Group Common Stock and the last 10 of which are with respect to 13,400 shares, maturing on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

SEC source: 0001225208-26-007139 · doc4.xml · nonDerivative · entry 1

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,559,752

SEC source: 0001225208-26-007097 · doc4.xml · nonDerivative · entry 4

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,558,752

F4 · price: The price is a weighted average price. These shares were purchased in multiple transactions ranging from $24.885 to $25.740, inclusive. The Reporting Person undertakes to provide to the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range.

SEC source: 0001225208-26-007097 · doc4.xml · nonDerivative · entry 3

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,492,050

F3 · price: The price is a weighted average price. These shares were purchased in multiple transactions ranging from $24.860 to $25.540, inclusive. The Reporting Person undertakes to provide to the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range.

SEC source: 0001225208-26-007097 · doc4.xml · nonDerivative · entry 2

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,423,250

F2 · price: The price is a weighted average price. These shares were purchased in multiple transactions ranging from $23.735 to $24.730, inclusive. The Reporting Person undertakes to provide to the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range.

SEC source: 0001225208-26-007097 · doc4.xml · nonDerivative · entry 1

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,276,200

F1 · price: The price is a weighted average price. These shares were purchased in multiple transactions ranging from $24.740 to $25.500, inclusive. The Reporting Person undertakes to provide to the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range.

SEC source: 0001225208-26-005796 · doc4.xml · nonDerivative · entry 4

DUNCAN RONALD A · CIK 0000905853 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · By Spouse

Disclosed balance after: 42,516

F5 · price: The price is a weighted average price. These shares were purchased in multiple transactions ranging from $20.9653 to $21.1000, inclusive. The Reporting Person undertakes to provide to the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range.

F6 · ownership.nature: The Reporting Person disclaims beneficial ownership of these shares owned by his spouse.

SEC source: 0001225208-26-005796 · doc4.xml · nonDerivative · entry 3

DUNCAN RONALD A · CIK 0000905853 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · By RAD, LLC

Disclosed balance after: 26,162

F3 · price: The price is a weighted average price. These shares were purchased in multiple transactions ranging from $20.9700 to $21.0500, inclusive. The Reporting Person undertakes to provide to the Securities and Exchange Commission, the Issuer, or any security holder of the Issuer, upon request, full information regarding the number of shares purchased at each separate price within the range.

F4 · ownership.nature: The Reporting Person has a 0.1% ownership interest in and is the controlling member of RAD, LLC and the Trust (defined in footnote 7) holds the remaining 99.9% ownership interest of RAD, LLC. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein.

SEC source: 0001225208-26-005796 · doc4.xml · nonDerivative · entry 2

DUNCAN RONALD A · CIK 0000905853 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Indirect · By Missy, LLC

Disclosed balance after: 7,022

F2 · ownership.nature: RAD, LLC has a 25% ownership interest in and is the managing member of Missy, LLC. The Reporting Person's spouse has a 25% ownership interest in Missy, LLC and the Reporting Person's adult daughter holds the remaining 50% ownership interest in Missy, LLC. Accordingly, the Reporting Person may be deemed to be the indirect beneficial owner of certain Issuer's securities owned by Missy, LLC. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein.

SEC source: 0001225208-26-005796 · doc4.xml · nonDerivative · entry 1

DUNCAN RONALD A · CIK 0000905853 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 130,164

F1 · balance_after: The amount beneficially owned by the Reporting Person increased by 557 shares of Series C GCI Group Common Stock due to a distribution of such shares to the Reporting Person from the GCI 401(k) Plan.

SEC source: 0001225208-26-003111 · doc4.xml · nonDerivative · entry 1

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 357,739

F1 · security: Each share of Series B GCI Group Common Stock is convertible, at the holder's election, into one share of Series A GCI Group Common Stock, at any time for no consideration other than the surrender of the share of Series B GCI Group Common Stock for each share of Series A GCI Group Common Stock.

F2 · balance_after: On September 26, 2025, the John C. Malone June 2003 Charitable Remainder Unitrust, which is wholly owned by the Reporting Person and his spouse, distributed 20,861 shares to the Reporting Person.

SEC source: 0001225208-26-002392 · doc4.xml · derivative · entry 9

DUNCAN RONALD A · CIK 0000905853 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Series C GCI Group Common Stock · 1,158 shares

Expires 2026-02-20

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.

F8 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of GLIBK.

F9 · derivative.exercise_date: This restricted stock unit was previously reported to vest on March 15, 2026. Vesting of this restricted stock unit was accelerated to correspond with the vesting of the performance-based restricted stock units granted to the Reporting Person on August 21, 2025 as referenced in Footnote 1.

F9 · derivative.expiration_date: This restricted stock unit was previously reported to vest on March 15, 2026. Vesting of this restricted stock unit was accelerated to correspond with the vesting of the performance-based restricted stock units granted to the Reporting Person on August 21, 2025 as referenced in Footnote 1.

SEC source: 0001225208-26-002392 · doc4.xml · nonDerivative · entry 3

DUNCAN RONALD A · CIK 0000905853 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,107

SEC source: 0001225208-26-002392 · doc4.xml · nonDerivative · entry 2

DUNCAN RONALD A · CIK 0000905853 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,813

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.

F2 · price: Each restricted stock unit converted into one share of GLIBK.

SEC source: 0001225208-26-002392 · doc4.xml · nonDerivative · entry 1

DUNCAN RONALD A · CIK 0000905853 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 133,655

F1 · shares: Represents shares of Series C GCI Group Common Stock ("GLIBK") to be issued as a result of the certification on February 10, 2026 of the satisfaction of performance criteria established for the performance-based restricted stock units granted to the Reporting Person on August 21, 2025.

SEC source: 0001225208-26-000364 · doc4.xml · derivative · entry 8

DUNCAN RONALD A · CIK 0000905853 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Series C GCI Group Common Stock · 7,035 shares

Expires 2026-01-05

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.

F7 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Series C GCI Group Common Stock.

SEC source: 0001225208-26-000364 · doc4.xml · nonDerivative · entry 2

DUNCAN RONALD A · CIK 0000905853 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,232

SEC source: 0001225208-26-000364 · doc4.xml · nonDerivative · entry 1

DUNCAN RONALD A · CIK 0000905853 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,212

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: Each restricted stock unit converted into one share of Series C GCI Group Common Stock.

SEC source: 0001225208-25-010199 · doc4.xml · nonDerivative · entry 4

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Malone LG 2013 Charitable Remainder Unitrust

Disclosed balance after: 60,594

F1 · kind: The shares of Series C GCI Group common stock were received by the reporting person or related trusts in the Issuer's recently completed pro rata rights offering pursuant to the oversubscription privilege associated with the reporting person's or such related trust's subscription rights.

SEC source: 0001225208-25-010199 · doc4.xml · nonDerivative · entry 3

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Leslie A. Malone 1995 Revocable Trust

Disclosed balance after: 108,417

F1 · kind: The shares of Series C GCI Group common stock were received by the reporting person or related trusts in the Issuer's recently completed pro rata rights offering pursuant to the oversubscription privilege associated with the reporting person's or such related trust's subscription rights.

F2 · ownership.nature: The reporting person disclaims beneficial ownership of these shares owned by his spouse.

SEC source: 0001225208-25-010199 · doc4.xml · nonDerivative · entry 2

MALONE JOHN C · CIK 0000937797 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · John C. Malone June 2003 Charitable Remainder Unitrust

Disclosed balance after: 1,541

F1 · kind: The shares of Series C GCI Group common stock were received by the reporting person or related trusts in the Issuer's recently completed pro rata rights offering pursuant to the oversubscription privilege associated with the reporting person's or such related trust's subscription rights.