Security Snapshot

MARCHEX INC - Class B Common Stock, par value $0.01 per share (MCHX) Institutional Ownership

CUSIP: 56624R108

13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026

Latest Period

Q2 2026

Institutions Reporting

29

Shares (Excl. Options)

21,274,216

Price

$1.61

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Latest holder snapshot 5 signals
Portfolio coverage rank
0%
Share change
+31,879
Value change
+$52,165
Number of holders
29
Issuer context Names, identifiers, and filing context for this profile. 2 identity fields
Shares outstanding
47,640,459
SEC-reported price per share
$1.80
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • MCHX - MARCHEX INC - Class B Common Stock, par value $0.01 per share is tracked under CUSIP 56624R108.
  • 29 institutions reported positions in Q2 2026.
  • 1 significant owner is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 28 to 29 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from $32,924,777 to $34,343,186.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 29 institutions filings for Q2 2026.

Open SEC evidence

Security key

56624R108

Latest holder period

Q2 2026

13F holders

29

13D/G owners

1

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
1
Security
MCHX
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
HOROWITZ RUSSELL C 18% $13,132,093 8,813,485 Russell C. Horowitz 01 Jul 2026

As of 30 Jun 2026, 29 institutional investors reported holding 21,274,216 shares of MARCHEX INC - Class B Common Stock, par value $0.01 per share (MCHX). This represents 45% of the company’s total 47,640,459 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
45%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Edenbrook Capital, LLC 31% 14,664,380 0% 8.3% $23,609,652
RENAISSANCE TECHNOLOGIES LLC 3.3% 1,576,464 -1.8% 0% $2,538,107
Kanen Wealth Management LLC 2.7% 1,300,388 0% 0.53% $2,184,652
VANGUARD CAPITAL MANAGEMENT LLC 2.3% 1,079,881 -0.13% 0% $1,738,608
BlackRock, Inc. 1.4% 656,221 +2.5% 0% $1,056,516
GEODE CAPITAL MANAGEMENT, LLC 0.84% 400,627 -1% 0% $645,176
P.A.W. CAPITAL CORP 0.84% 400,000 0% 0.49% $644,000
VANGUARD FIDUCIARY TRUST CO 0.43% 203,633 +0.72% 0% $327,849
ACADIAN ASSET MANAGEMENT LLC 0.39% 185,448 -12% 0% $297,000
Arax Advisory Partners 0.31% 145,908 0% $234,912
STATE STREET CORP 0.3% 140,696 0% 0% $226,521
Acuitas Investments, LLC 0.22% 102,734 -23% 12% $167,456
NORTHERN TRUST CORP 0.15% 70,345 -7.5% 0% $113,255
DIMENSIONAL FUND ADVISORS LP 0.14% 66,241 -0.05% 0% $106,669
MARATHON CAPITAL MANAGEMENT 0.13% 64,000 +4.1% 0.02% $103,040
GOLDMAN SACHS GROUP INC 0.09% 44,593 -6% 0% $71,795
BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.09% 42,328 -26% 0% $68,148
MORGAN STANLEY 0.07% 33,136 0% 0% $53,349
LPL Financial LLC 0.07% 31,190 0% 0% $50,216
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.05% 24,313 0% 0% $39,144
CITADEL ADVISORS LLC 0.04% 17,360 +4.4% 0% $27,950
Vanguard Global Advisers, LLC 0.02% 11,241 0% 0% $18,098
Independent Advisor Alliance 0.02% 10,000 0% 0% $16,100
Tower Research Capital LLC (TRC) 0.01% 2,930 +40% 0% $4,717
BARCLAYS PLC 0% 63 0% $101

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q2 21,274,216 $34,343,186 +$52,165 $1.61 29
2026 Q1 21,242,337 $32,924,777 +$148,099 $1.55 28
2025 Q4 21,143,762 $35,122,336 -$117,371 $1.66 26
2025 Q3 21,205,621 $38,175,797 -$121,980 $1.80 30
2025 Q2 21,186,259 $46,302,489 +$995,274 $2.16 29
2025 Q1 20,749,034 $33,820,290 +$570,916 $1.63 32
2024 Q4 20,381,892 $35,657,952 +$515,036 $1.75 30
2024 Q3 20,080,394 $37,535,159 -$197,171 $1.87 27
2024 Q2 20,212,809 $31,126,876 -$1,334,864 $1.54 28
2024 Q1 21,081,842 $28,880,650 -$1,975,390 $1.37 27
2023 Q4 22,527,286 $30,635,281 -$107,173 $1.36 28
2023 Q3 22,604,956 $32,776,900 -$224,153 $1.45 28
2023 Q2 22,759,549 $48,244,523 -$519,574 $2.12 28
2023 Q1 23,004,694 $41,864,960 -$1,538,616 $1.82 26
2022 Q4 26,868,534 $42,964,369 -$449,334 $1.60 28
2022 Q3 24,116,837 $40,512,825 -$797,748 $1.68 25
2022 Q2 24,595,484 $32,464,648 -$193,073 $1.32 26
2022 Q1 24,719,423 $56,601,569 -$846,772 $2.29 28
2021 Q4 25,078,957 $62,193,699 +$395,484 $2.48 31
2021 Q3 24,113,180 $71,974,045 +$295,075 $2.98 35
2021 Q2 24,008,867 $73,465,096 -$1,035,088 $3.06 43
2021 Q1 24,383,175 $68,516,925 -$612,713 $2.81 38
2020 Q4 24,715,383 $48,426,343 -$4,285,012 $1.96 40
2020 Q3 26,858,286 $56,940,241 -$1,356,513 $2.12 49
2020 Q2 27,719,238 $43,798,013 -$1,892,302 $1.58 59
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