Leslie Gillin - 29 Dec 2025 Form 4 Insider Report for COMSCORE, INC. (SCOR)

Reporting relationship: Director
Issuer ticker: SCOR
Reported as of: 29 Dec 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 31 Dec 2025, 17:23:04 UTC
Prior SEC filing: 01 Oct 2025
Next SEC filing: 05 Jan 2026
Source filing: View source filing
Reporting owner signature: /s/ Ashley Wright, Attorney-in-Fact

Key filing fact

Leslie Gillin filed Form 4 for COMSCORE, INC. (SCOR) on 31 Dec 2025.

Key facts

This page summarizes Leslie Gillin's Form 4 filing for COMSCORE, INC. (SCOR).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 31 Dec 2025, 17:23.

Change

Previous filing in this sequence was filed on 01 Oct 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 0001862601 Primary reporting owner

Gillin Leslie

Relationship: Director
Address: C/O COMSCORE, INC., 11950 DEMOCRACY DRIVE, STE. 600, RESTON
Signature: /s/ Ashley Wright, Attorney-in-Fact
Signature date: 31 Dec 2025

Reported non-derivative transactions

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

SCOR transaction

Common Stock

Options Exercise

Transaction value: $0
Shares: +10,000
Change %: +43%
Price: $0.000000
Shares after: 33,354
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

Restricted Stock Units

Options Exercise

Transaction value: $0
Shares: -10,000
Change %: -100%
Price: $0.000000
Shares after: 0
Date: 29 Dec 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 10,000
Exercise price: $0.000000
Footnotes: F1, F2

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

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

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

Explanation of responses 2 footnotes

Footnote F1

Each restricted stock unit represents a contingent right to receive one share of the Company's common stock.

Footnote F2

This restricted stock unit award was granted on 7/1/2025 pursuant to the terms of the comScore, Inc. 2018 Equity and Incentive Compensation Plan. This award vested in full on 12/29/2025 upon the reporter's resignation from the Company's Board of Directors in connection with a previously disclosed recapitalization transaction. Vested units will be delivered in shares of common stock as soon as administratively practicable, as set forth in the applicable award notice.