# MARCHEX INC CL B

MARCHEX INC CL B is a security (CUSIP 56624R108) tracked across SEC portfolio filings. 26 institutional managers reported $32.1M on Form 13F as of 2026-06-30; 2 registered fund positions totaling $663K via N-PORT as of 2026-03-31.

## Summary

- Issuer: MARCHEX INC
- Class: CL B
- CUSIP: 56624R108
- Asset category: EC
- 13F holders: 26
- 13F value: $32.1M
- 13F period: 2026-06-30
- N-PORT fund positions: 2
- N-PORT value: $663K
- N-PORT report: 2026-03-31

## Top institutional holders (Form 13F)

_Showing 15 of 26 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [Edenbrook Capital, LLC](https://search.stillhousedata.com/firm/283465) | Mt. Kisco, NY | $22.7M | 14,664,380 |
| [RENAISSANCE TECHNOLOGIES LLC](https://search.stillhousedata.com/firm/106661) | NEW YORK, NY | $2.5M | 1,605,904 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $2.1M | 1,294,755 |
| [Kanen Wealth Management LLC](https://search.stillhousedata.com/firm/282746) | CORAL SPRINGS, FL | $2.0M | 1,300,388 |
| BlackRock, Inc. | New York, NY | $992K | 639,995 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $628K | 404,806 |
| STATE STREET CORP | BOSTON, MA | $218K | 140,696 |
| [Acuitas Investments, LLC](https://search.stillhousedata.com/firm/155782) | Seattle, WA | $167K | 102,734 |
| NORTHERN TRUST CORP | CHICAGO, IL | $118K | 76,029 |
| [MARATHON CAPITAL MANAGEMENT](https://search.stillhousedata.com/firm/119416) | Hunt Valley, MD | $103K | 64,000 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $103K | 66,276 |
| [BRIDGEWAY CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/111441) | HOUSTON, TX | $88K | 56,828 |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $74K | 47,428 |
| MORGAN STANLEY | NEW YORK, NY | $51K | 33,136 |
| [LPL Financial LLC](https://search.stillhousedata.com/firm/6413) | FORT MILL, SC | $48K | 31,190 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $639K | 0.08% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $23K | 0.00% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/56624R108.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.