John C. Malone - 18 Aug 2026 Form 4 Insider Report for Liberty Broadband Corp (LBRDK)

Reporting relationship: Director, 10%+ Owner
Issuer ticker: LBRDK
Reported as of: 18 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 20 Aug 2026, 21:14:01 UTC
Prior SEC filing: 18 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Brittany A. Uthoff as Attorney-in-Fact for John C. Malone

Key filing fact

John C. Malone filed Form 4 for Liberty Broadband Corp (LBRDK) on 20 Aug 2026.

Key facts

This page summarizes John C. Malone's Form 4 filing for Liberty Broadband Corp (LBRDK).
18 reported transactions and 8 derivative rows are listed below.
Accepted by SEC: 20 Aug 2026, 21:14.

Change

Previous filing in this sequence was filed on 18 Aug 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0000937797 Primary reporting owner

MALONE JOHN C

Relationship: Director, 10%+ Owner
Address: 12300 LIBERTY BLVD., ENGLEWOOD
Signature: /s/ Brittany A. Uthoff as Attorney-in-Fact for John C. Malone
Signature date: 20 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

LBRDK transaction

Series C Common Stock

Exercise of in-the-money or at-the-money derivative security

Transaction value
Shares: -66,000
Change %: -0.98%
Price: $88.37^*
Shares after: 6,680,933
Date: 18 Aug 2026
Ownership: Direct
Footnotes: F1

LBRDK transaction

Series C Common Stock

Exercise of in-the-money or at-the-money derivative security

Transaction value
Shares: -66,000
Change %: -0.99%
Price: $88.37^*
Shares after: 6,614,933
Date: 19 Aug 2026
Ownership: Direct
Footnotes: F2

LBRDK transaction

Series A Common Stock

Disposed to Issuer

Transaction value
Shares: -1,153,227
Change %: -100%
Price
Shares after: 0
Date: 19 Aug 2026
Ownership: Direct
Footnotes: F3

LBRDK transaction

Series B Common Stock

Disposed to Issuer

Transaction value
Shares: -58,184
Change %: -100%
Price
Shares after: 0
Date: 19 Aug 2026
Ownership: Direct
Footnotes: F3, F4

LBRDK transaction

Series C Common Stock

Disposed to Issuer

Transaction value
Shares: -6,614,933
Change %: -100%
Price
Shares after: 0
Date: 19 Aug 2026
Ownership: Direct
Footnotes: F3

LBRDK transaction

Series B Common Stock

Disposed to Issuer

Transaction value
Shares: -122,649
Change %: -100%
Price
Shares after: 0
Date: 19 Aug 2026
Ownership: John C. Malone June 2003 Charitable Remainder Unitrust
Footnotes: F3, F4

LBRDK transaction

Series A Common Stock

Disposed to Issuer

Transaction value
Shares: -25,444
Change %: -100%
Price
Shares after: 0
Date: 19 Aug 2026
Ownership: Leslie A. Malone 1995 Revocable Trust
Footnotes: F3, F5

LBRDK transaction

Series B Common Stock

Disposed to Issuer

Transaction value
Shares: -57,641
Change %: -100%
Price
Shares after: 0
Date: 19 Aug 2026
Ownership: Leslie A. Malone 1995 Revocable Trust
Footnotes: F3, F4, F5

LBRDK transaction

Series C Common Stock

Disposed to Issuer

Transaction value
Shares: -357,106
Change %: -100%
Price
Shares after: 0
Date: 19 Aug 2026
Ownership: Leslie A. Malone 1995 Revocable Trust
Footnotes: F3, F5

LBRDK transaction

Series C Common Stock

Disposed to Issuer

Transaction value
Shares: -213,332
Change %: -100%
Price
Shares after: 0
Date: 19 Aug 2026
Ownership: Malone LG 2013 Charitable Remainder Unitrust
Footnotes: F3

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

LBRDK transaction Derivative

Call option(obligation to sell)

Expiration of short derivative position

Transaction value
Shares: -66,000
Change %: -6.6%
Price: $0.000000^*
Shares after: 934,000
Date: 18 Aug 2026
Ownership: Direct
Underlying class: Series C Common Stock
Underlying amount: 66,000
Exercise price: $120.77
Footnotes: F1, F6, F7

LBRDK transaction Derivative

Put option (right to sell)

Exercise of in-the-money or at-the-money derivative security

Transaction value
Shares: -66,000
Change %: -6.6%
Price: $0.000000^*
Shares after: 934,000
Date: 18 Aug 2026
Ownership: Direct
Underlying class: Series C Common Stock
Underlying amount: 66,000
Exercise price: $88.37
Footnotes: F1, F6, F7

LBRDK transaction Derivative

Call option(obligation to sell)

Expiration of short derivative position

Transaction value
Shares: -66,000
Change %: -7.1%
Price: $0.000000^*
Shares after: 868,000
Date: 19 Aug 2026
Ownership: Direct
Underlying class: Series C Common Stock
Underlying amount: 66,000
Exercise price: $120.77
Footnotes: F2, F6, F7

LBRDK transaction Derivative

Put option (right to sell)

Exercise of in-the-money or at-the-money derivative security

Transaction value
Shares: -66,000
Change %: -7.1%
Price: $0.000000^*
Shares after: 868,000
Date: 19 Aug 2026
Ownership: Direct
Underlying class: Series C Common Stock
Underlying amount: 66,000
Exercise price: $88.37
Footnotes: F2, F6, F7

LBRDK transaction Derivative

Call option(obligation to sell)

Other

Transaction value
Shares: -868,000
Change %: -100%
Price
Shares after: 0
Date: 19 Aug 2026
Ownership: Direct
Underlying class: Series C Common Stock
Underlying amount: 868,000
Exercise price: $120.77
Footnotes: F6, F7, F8

LBRDK transaction Derivative

Put option (right to sell)

Other

Transaction value
Shares: -868,000
Change %: -100%
Price
Shares after: 0
Date: 19 Aug 2026
Ownership: Direct
Underlying class: Series C Common Stock
Underlying amount: 868,000
Exercise price: $88.37
Footnotes: F6, F7, F8

LBRDK transaction Derivative

Call option(obligation to sell)

Other

Transaction value
Shares: -400,000
Change %: -100%
Price
Shares after: 0
Date: 19 Aug 2026
Ownership: Direct
Underlying class: Series C Common Stock
Underlying amount: 400,000
Exercise price: $114.00
Footnotes: F9, F10, F11

LBRDK transaction Derivative

Put option (right to sell)

Other

Transaction value
Shares: -400,000
Change %: -100%
Price
Shares after: 0
Date: 19 Aug 2026
Ownership: Direct
Underlying class: Series C Common Stock
Underlying amount: 400,000
Exercise price: $71.55
Footnotes: F9, F10, F11

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

John C. Malone is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Explanation of responses 11 footnotes

Footnote F1

On August 18, 2026, the Reporting Person physically settled the first component of the 2019 Transaction (as defined in the Remarks section).

Footnote F2

On August 19, 2026, the Reporting Person physically settled the second component of the 2019 Transaction.

Footnote F3

Pursuant to the terms of the Merger Agreement (as defined in the Remarks section), at the effective time of the Merger (as defined in the Remarks section), each share of the Issuer's Series A Common Stock, Series B Common Stock and Series C Common Stock issued and outstanding immediately prior to the effective time of the Merger was automatically converted into 0.2360 of a share of Charter Communications, Inc. ("Charter") Class A common stock ("Charter Common Stock"), except that cash (without interest) was paid in lieu of fractional shares.

Footnote F4

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

Footnote F5

The Reporting Person disclaims beneficial ownership of these shares owned by his spouse.

Footnote F6

The 2019 Transaction is divided into 15 components, each of the first 5 of which are with respect to 66,000 shares of Series C Common Stock and each of the next 10 of which are with respect to 67,000 shares of Series C Common Stock. The components mature on sequential trading days over the period beginning on August 18, 2026 and ending on September 8, 2026.

Footnote F7

The 2019 Transaction is a "zero-cost collar" in which no premium was exchanged for either the call options or the put options.

Footnote F8

As a result of the Merger, the dealer counterparty to the 2019 Transaction adjusted the transaction pursuant to its terms to (i) substitute each Share of Series C Common Stock underlying the 2019 Transaction for 0.2360 shares of Charter Common Stock and (ii) adjusted the strike prices of the call options and put options.

Footnote F9

As a result of the Merger, the dealer counterparty to the 2021 Transaction (as defined in the Remarks section) adjusted the transaction pursuant to its terms to (i) substitute each Share of Series C Common Stock underlying the 2021 Transaction for 0.2360 shares of Charter Common Stock and (ii) adjusted the strike prices of the call options and put options.

Footnote F10

The 2021 Transaction is divided into 5 components, each of which are with respect to 80,000 shares of Series C Common Stock. The components mature on sequential trading days over the period beginning on August 21, 2028 and ending on August 25, 2028.

Footnote F11

The 2021 Transaction is a "zero-cost collar" in which no premium was exchanged for either the call options or the put options.

SEC remarks

On each of September 12, 2019 (the "2019 Transaction") and September 14, 2021 (the "2021 Transaction"), the Reporting Person entered into a "zero-cost collar" arrangement pursuant to which he wrote European call options and purchased European put options over an aggregate of 1,000,000 shares of Series C Common Stock and 400,000 shares of Series C Common Stock, respectively. For each of the 2019 Transaction and 2021 Transaction, 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. Each transaction will be settled in cash unless the Reporting Person elects physical settlement. As a result of the spin-off (the "Spin-Off") of GCI Liberty, Inc. (which is now known as Liberty Capital Corporation) from the Issuer on July 15, 2025, the dealer counterparty to the transactions adjusted the strike price of the call options and put options of each transaction pursuant to its terms. Pursuant to the Agreement and Plan of Merger, dated as of November 12, 2024 (the "Merger Agreement"), by and among the Issuer, Charter, Fusion Merger Sub 1, LLC, a Delaware limited liability company and wholly owned subsidiary of Charter ("Merger LLC"), and Fusion Merger Sub 2, Inc., a Delaware corporation and wholly owned subsidiary of Merger LLC ("Merger Sub"), on August 19, 2026, Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Merger LLC, and immediately following the Merger, the Issuer (as the surviving corporation in the Merger) merged with and into Merger LLC (the "Upstream Merger"), with Merger LLC surviving the Upstream Merger as the surviving company and a wholly owned subsidiary of Charter.