As of November 9, 2026, one holder's latest Schedule 13D or 13G filing report owning 5% or more of Marchex, Inc. The largest reported stake is Russell C. Horowitz's, at 18.5%. One filing is on record since July 7, 2026 (Schedule 13D, July 7, 2026).
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Key facts
- · Reporting person: Russell C. Horowitz · Sole voting: 8,813,485 · Shared voting: 0 · Sole dispositive: 8,813,485 · Shared dispositive: 0 · SCHEDULE 13D, 2026-07-07
- · Holder: Russell C. Horowitz · Percent: 18.5% · SCHEDULE 13D
- · Holder: Russell C. Horowitz · Percent: 18.5% · Shares: 8,813,485 · SCHEDULE 13D
Marchex, Inc. has 1 Schedule 13D or 13G filing on record since 2026-07-07. 1 holder's latest filing reports 5% or more of class b common stock, par value $0.01 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| 18.5% | 8,813,485 | SCHEDULE 13D, 2026-07-07 | 2026-07-01 |
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Russell C. Horowitz | 8,813,485 | 0 | 8,813,485 | 0 | SCHEDULE 13D, 2026-07-07 |
The latest filing identifies Marchex, Inc. by CUSIP 56624R108 and gives its principal executive office as 1448 NW Market St, Suite 500, Seattle, WA 98107 (SCHEDULE 13D, 2026-07-07).
Source of funds (Item 3)
The Reporting Person is a founder of Marchex, has provided services to it in several roles since its incorporation in January 2003 (including as a former executive officer, a consultant, and a member of the board of directors), and currently serves as its Chairman. The Reporting Person acquired his historical holdings from personal funds in connection with private investments in Marchex prior to its initial public offering in March 2004 and subsequently through equity incentive compensation.Russell C. Horowitz, SCHEDULE 13D, 2026-07-07
Purpose of Transaction (Item 4)
Russell C. Horowitz
The information set forth or incorporated in Item 3 and Item 6 is hereby incorporated by reference in its entirety into this Item 4. The Reporting Person acquired beneficial ownership of the Shares as part of the transactions described in Item 3 above. The Reporting Person may in the future take actions with respect to his investment in Marchex as it deems appropriate, including changing his current intentions, with respect to any or all matters required to be disclosed in this Schedule 13D. From time to time, the Reporting Person may acquire beneficial ownership of additional securities of Marchex, by purchase or otherwise, including additional purchases of shares in the open-market or privately negotiated transactions or otherwise. In addition, from time to time, the Reporting Person may dispose of all or a portion of the securities of Marchex that he beneficially owns. Other than as described above, the Reporting Person has no plan or proposal that relates to or would result in any of the transactions involving Marchex described in subparagraphs (a) through (j) of Item 4 of Schedule 13D.Item 4 of the SCHEDULE 13D filed 2026-07-07
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-07-07 | Russell C. Horowitz | 18.5% | SCHEDULE 13D |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.