# COMSCORE, INC. — DEFA14A

COMSCORE, INC. of RESTON, VA filed a DEFA14A with the SEC on 2025-04-30. Industry: Services-Business Services, NEC.

## Filing

- Filed: 2025-04-30
- Form: DEFA14A
- Accession: 0001193125-25-107129
- Registrant: COMSCORE, INC.
- CIK: 0001158172
- Industry (SIC): Services-Business Services, NEC (7389)
- State of incorporation: DE
- Location: RESTON, VA

## Documents (3)

| Seq | Type | Description |
| --- | --- | --- |
| 1 | DEFA14A | DEFA14A |
| 2 | GRAPHIC | GRAPHIC |
| 3 | GRAPHIC | GRAPHIC |

## Filing timeline for this registrant (60)

_Showing 12 of 60 filings._

| Filed | Form |
| --- | --- |
| [2026-05-22](https://search.stillhousedata.com/proxy/0001158172-26-000028) | DEFA14A |
| [2026-04-30](https://search.stillhousedata.com/proxy/0001193125-26-197136) | DEFA14A |
| [2026-04-30](https://search.stillhousedata.com/proxy/0001193125-26-197109) | DEF 14A |
| [2025-11-07](https://search.stillhousedata.com/proxy/0001193125-25-272292) | DEFA14A |
| [2025-11-07](https://search.stillhousedata.com/proxy/0001193125-25-272289) | DEF 14A |
| [2025-10-24](https://search.stillhousedata.com/proxy/0001193125-25-250200) | PRE 14A |
| [2025-09-29](https://search.stillhousedata.com/proxy/0001193125-25-221292) | DEFA14A |
| 2025-04-30 | DEFA14A |
| [2025-04-30](https://search.stillhousedata.com/proxy/0001193125-25-107113) | DEF 14A |
| [2025-04-18](https://search.stillhousedata.com/proxy/0001193125-25-085717) | PRE 14A |
| [2024-04-29](https://search.stillhousedata.com/proxy/0001193125-24-122272) | DEFA14A |
| [2024-04-29](https://search.stillhousedata.com/proxy/0001193125-24-122246) | DEF 14A |

## More

- [CIK 1158172 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1158172&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/proxy/0001193125-25-107129.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.
