Comparable stake leader
Russell C. Horowitz
SEC ownership of MARCHEX INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001224133.
Disclosed value leader
Edenbrook Capital, LLC
Comparable rows
29/40
Latest evidence
01 Jul 2026
- Public ticker
- MCHX on Nasdaq
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Russell C. Horowitz
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
29 of 40
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Russell C. Horowitz
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
01 Jul 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001224133
- Issuer location
- Seattle, WA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of MARCHEX INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Russell C. Horowitz
Disclosed value leader
Edenbrook Capital, LLC
Comparable rows
29/40
Latest evidence
01 Jul 2026
13D/G
3/4/5
13F
Lead comparable stake: 18%
11 rows are not safely comparable across share classes.
13D/G row: Russell C. Horowitz
Showing 1-8 of 40 holder rows.
Quick read
Russell C. Horowitz leads the comparable SEC ownership view at 18%.
29 of 40 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Russell C. Horowitz's linked filing trail.
Comparable ownership
Top 5
Russell C. Horowitz
18%
Edenbrook Capital, LLC
31%
RENAISSANCE TECHNOLOGIES LLC
3.4%
Kanen Wealth Management LLC
2.7%
VANGUARD CAPITAL MANAGEMENT LLC
2.3%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 40 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Russell C. Horowitz |
13D/G
3/4/5
Chairman, Director, 10%+ Owner
|
18%
|
$13,132,093
8,813,485 shares
|
$0 | 01 Jul 2026 |
| Edenbrook Capital, LLC |
13F
3/4/5
Company · 10%+ Owner
|
31%
|
$22,729,789
14,664,380 shares
|
— | 31 Mar 2026 |
| RENAISSANCE TECHNOLOGIES LLC |
13F
Company
|
3.4%
|
$2,489,151
1,605,904 shares
|
— | 31 Mar 2026 |
| Kanen Wealth Management LLC |
13F
Company
|
2.7%
|
$2,015,601
1,300,388 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
2.3%
|
$1,676,071
1,081,336 shares
|
— | 31 Mar 2026 |
| BlackRock, Inc. |
13F
Company
|
1.3%
|
$991,992
639,995 shares
|
— | 31 Mar 2026 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
0.85%
|
$627,600
404,806 shares
|
— | 31 Mar 2026 |
| P.A.W. CAPITAL CORP |
13F
Company
|
0.84%
|
$620,000
400,000 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 22 Jul 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-13 of 13 reporting-owner rows connected to MARCHEX INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
13
Largest Forms 3/4/5 holder
Edenbrook Capital, LLC
Net 12M change
$0
Latest report
01 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Edenbrook Capital, LLC | 10%+ Owner | $2,407,934 | Filing P/S | 25 Mar 2025 | ||
| Edwin A. Miller | Chief Executive Officer | $766,055 | Mixed | 20 Mar 2025 | ||
| John Roswech | Chief Revenue Officer | $527,325 | Mixed | 03 Jan 2022 | ||
| Francis J. Feeney | Chief Operating Officer & CLO | $443,893 | Mixed | 20 Mar 2026 | ||
| Ryan Polley | Chief Operating Officer | $344,519 | Mixed | 25 Jan 2023 | ||
| Troy Hartless | President & Chief Rev Officer | $280,805 | Mixed | 20 Mar 2026 | ||
| Brian Nagle | Chief Financial Officer | $24,069 | Mixed | 20 Mar 2026 | ||
| Holly A. Aglio | Cfo | Mixed | 30 Oct 2023 | |||
| Donald Cogsville | Director | Mixed | 16 Dec 2025 | |||
| Russell C. Horowitz | Chairman, Director, 10%+ Owner | Mixed | 01 Jul 2026 | |||
| Manuel W. Wisehart | Director | Mixed | 16 Dec 2025 | |||
| Dennis Cline | Director | Mixed | 16 Dec 2025 | |||
| Michael A. Arends | Vice Chairman, Director | Mixed | 01 Jul 2026 |
Recent insider transactions for MARCHEX INC
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Russell C. Horowitz | MCHX | 6.0% Convertible Debt (due 2028) | Award | 0 | $4,864,865 | 01 Jul 2026 | Direct | |||
| Michael A. Arends | MCHX | 6.0% Convertible Debt (due 2028) | Award | 0 | $4,144,144 | 01 Jul 2026 | Direct | |||
| Troy Hartless | MCHX | Class B Common Stock | Options Exercise | 87,500 | 87,500 | 20 Mar 2026 | Direct | |||
| Troy Hartless | MCHX | Restricted Stock Units | Options Exercise | -100% | -87,500 | 0 | 20 Mar 2026 | Direct | ||
| Brian Nagle | MCHX | Class B Common Stock | Options Exercise | 7,500 | 7,500 | 20 Mar 2026 | Direct | |||
| Brian Nagle | MCHX | Restricted Stock Units | Options Exercise | -100% | -7,500 | 0 | 20 Mar 2026 | Direct | ||
| Francis J. Feeney | MCHX | Class B Common Stock | Options Exercise | 26.3% | 62,500 | 299,928 | 20 Mar 2026 | Direct | ||
| Francis J. Feeney | MCHX | Restricted Stock Units | Options Exercise | -100% | -62,500 | 0 | 20 Mar 2026 | Direct | ||
| Brian Nagle | MCHX | Restricted Stock Units | Award | 56,089 | 56,089 | 17 Feb 2026 | Direct | |||
| Troy Hartless | MCHX | Restricted Stock Units | Award | 128,205 | 128,205 | 17 Feb 2026 | Direct | |||
| Francis J. Feeney | MCHX | Restricted Stock Units | Award | 96,153 | 96,153 | 17 Feb 2026 | Direct | |||
| Manuel W. Wisehart | MCHX | Employee Stock Option (right to buy) | Award | 50,000 | 50,000 | 16 Dec 2025 | Direct | |||
| Dennis Cline | MCHX | Employee Stock Option (right to buy) | Award | 50,000 | 50,000 | 16 Dec 2025 | Direct | |||
| Michael A. Arends | MCHX | Employee Stock Option (right to buy) | Award | 50,000 | 50,000 | 16 Dec 2025 | Direct | |||
| Donald Cogsville | MCHX | Employee Stock Option (right to buy) | Award | 50,000 | 50,000 | 16 Dec 2025 | Direct | |||
| Russell C. Horowitz | MCHX | Employee Stock Option (right to buy) | Award | 50,000 | 50,000 | 16 Dec 2025 | Direct | |||
| Brian Nagle | MCHX | Employee Stock Option (right to buy) | Award | 125,000 | 125,000 | 16 Oct 2025 | Direct | |||
| Brian Nagle | MCHX | Restricted Stock Units | Award | 125,000 | 125,000 | 16 Oct 2025 | Direct | |||
| Francis J. Feeney | MCHX | Employee Stock Option (right to buy) | Award | 150,000 | 150,000 | 16 Oct 2025 | Direct | |||
| Francis J. Feeney | MCHX | Restricted Stock Units | Award | 150,000 | 150,000 | 16 Oct 2025 | Direct | |||
| Troy Hartless | MCHX | Employee Stock Option (right to buy) | Award | 150,000 | 150,000 | 16 Oct 2025 | Direct | |||
| Troy Hartless | MCHX | Restricted Stock Units | Award | 150,000 | 150,000 | 16 Oct 2025 | Direct |
* marks a reported price that did not pass the local price check.