Liberty Broadband Corp - 29 Dec 2025 Form 4 Insider Report for COMSCORE, INC. (SCOR)

Reporting relationship: Director, 10%+ Owner
Issuer ticker: SCOR
Reported as of: 29 Dec 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 31 Dec 2025, 16:08:22 UTC
Prior SEC filing: 11 Dec 2025
Next SEC filing: 14 Jan 2026
Source filing: View source filing
Reporting owner signature: Liberty Broadband Corporation. By: /s/ Craig Troyer. Name: Craig Troyer, Title: Senior Vice President

Key filing fact

Liberty Broadband Corp filed Form 4 for COMSCORE, INC. (SCOR) on 31 Dec 2025.

Key facts

This page summarizes Liberty Broadband Corp's Form 4 filing for COMSCORE, INC. (SCOR).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 31 Dec 2025, 16:08.

Change

Previous filing in this sequence was filed on 11 Dec 2025.
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 0001611983 Primary reporting owner

Liberty Broadband Corp

Relationship: Director, 10%+ Owner
Address: 12300 LIBERTY, BOULEVARD, ENGLEWOOD
Signature: Liberty Broadband Corporation. By: /s/ Craig Troyer. Name: Craig Troyer, Title: Senior Vice President
Signature date: 31 Dec 2025

Reported non-derivative transactions

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

SCOR transaction

Common Stock

Award

Transaction value
Shares: +3,286,825
Change %
Price
Shares after: 3,286,825
Date: 29 Dec 2025
Ownership: Direct
Footnotes: F1

Reported derivative securities

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

SCOR transaction Derivative

Series B Convertible Preferred Stock

Disposed to Issuer

Transaction value
Shares: -31,928,301
Change %: -100%
Price
Shares after: 0
Date: 29 Dec 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,717,072
Exercise price
Footnotes: F1, F2

SCOR transaction Derivative

Series C Convertible Preferred Stock

Award

Transaction value
Shares: +4,223,621
Change %
Price
Shares after: 4,223,621
Date: 29 Dec 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 4,223,621
Exercise price
Footnotes: F1, F3

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

On December 29, 2025, pursuant to a Stock Exchange Agreement, dated September 26, 2025, between the Issuer and the Reporting Person, the Reporting Person exchanged the 31,928,301 shares of Series B Convertible Preferred Stock of the Issuer then owned by the Reporting Person for (i) 4,223,621 shares of a new series of convertible preferred stock designated as Series C Convertible Preferred Stock and (ii) 3,286,825 shares of Common Stock.

Footnote F2

Subject to certain antidilution adjustments and customary provisions related to partial dividend periods, the Series B Convertible Preferred Stock is convertible at the option of the holders at any time into a number of shares of Common Stock equal to the Conversion Rate (as defined in the Certificate of Designations for the Series B Convertible Preferred Stock), which was originally one-to-one, but was approximately 0.053779 including accrued dividends as of December 29, 2025. As of December 29, 2025, the shares of Series B Convertible Preferred Stock reported herein were convertible into 1,717,072 shares of Common Stock.

Footnote F3

As of December 29, 2025, the shares of Series C Convertible Preferred Stock reported herein are convertible into 4,223,621 shares of Common Stock. Subject to certain antidilution adjustments, the Series C Convertible Preferred Stock is convertible at the option of the holders at any time into a number of shares of Common Stock equal to the Conversion Rate (as defined in the Certificate of Designations for the Series C Convertible Preferred Stock), which is originally one-to-one. The Series C Convertible Preferred Stock has no expiration date.