Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in MCHX held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Edenbrook Capital, LLC | 14.7M | $22.7M | 0.0% | 33.100% | 15.56% |
| 2 | RENAISSANCE TECHNOLOGIES LLC | 1.6M | $2.5M | -3.1% | 3.625% | 0.00% |
| 3 | Kanen Wealth Management LLC | 1.3M | $2.0M | +4.1% | 2.935% | 0.72% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 1.1M | $1.7M | β | 2.441% | 0.00% |
| 5 | BlackRock, Inc. | 640K | $992K | +0.8% | 1.445% | 0.00% |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | 405K | $628K | +0.4% | 0.914% | 0.00% |
| 7 | P.A.W. CAPITAL CORP | 400K | $620K | 0.0% | 0.903% | 1.69% |
| 8 | VANGUARD FIDUCIARY TRUST CO | 202K | $313K | β | 0.456% | 0.00% |
| 9 | STATE STREET CORP | 141K | $218K | +4.5% | 0.318% | 0.00% |
| 10 | Acuitas Investments, LLC | 134K | $207K | β | 0.302% | 14.70% |
| 11 | NORTHERN TRUST CORP | 76K | $118K | 0.0% | 0.172% | 0.00% |
| 12 | DIMENSIONAL FUND ADVISORS LP | 66K | $103K | 0.0% | 0.150% | 0.00% |
| 13 | MARATHON CAPITAL MANAGEMENT | 62K | $95K | 0.0% | 0.139% | 0.02% |
| 14 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 57K | $88K | 0.0% | 0.128% | 0.00% |
| 15 | GOLDMAN SACHS GROUP INC | 47K | $74K | +5.6% | 0.107% | 0.00% |
| 16 | MORGAN STANLEY | 33K | $51K | 0.0% | 0.075% | 0.00% |
| 17 | LPL Financial LLC | 31K | $48K | -0.2% | 0.070% | 0.00% |
| 18 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 24K | $38K | 0.0% | 0.055% | 0.00% |
| 19 | Black Diamond Financial, LLC | 20K | $31K | β | 0.045% | 0.00% |
| 20 | CITADEL ADVISORS LLC | 17K | $26K | β | 0.037% | 0.00% |
| 21 | Vanguard Global Advisers, LLC | 11K | $17K | β | 0.025% | 0.00% |
| 22 | Independent Advisor Alliance | 10K | $16K | 0.0% | 0.023% | 0.00% |
| 23 | Tower Research Capital LLC (TRC) | 2K | $3K | +48.2% | 0.005% | 0.00% |
| 24 | UBS Group AG | 626 | $970 | +636.5% | 0.001% | 0.00% |
| 25 | ACADIAN ASSET MANAGEMENT LLC | 212K | $327 | -16.8% | 0.478% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in MCHX β a direct measure of their conviction.
Filings activity in MCHX during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new MCHX position in Q1 2026
Institutions that fully closed their MCHX position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 27 | +3.8% | 47.47% | 0.01 pp | $33M | 0.0% |
| Q4 2025 | 26 | 16% | 47.48% | 7.40 pp | $33M | 13% |
| Q3 2025 | 31 | +3.3% | 54.88% | 11.69 pp | $38M | 18% |
| Q2 2025 | 30 | 9.1% | 66.57% | +18.11 pp | $46M | +37% |
| Q1 2025 | 33 | +6.5% | 48.46% | 2.55 pp | $33M | 5.0% |
| Q4 2024 | 31 | +11% | 51.01% | 2.78 pp | $35M | 5.2% |
| Q3 2024 | 28 | 3.4% | 53.79% | +9.52 pp | $37M | +22% |
| Q2 2024 | 29 | β | 44.27% | β | $30M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying MCHX stock.
Based on Q1 2026 13F filings, institutional ownership of Marchex, Inc. stands at 47.5%, held across 27 reporting institutions.
Edenbrook Capital, LLC is the largest reported institutional holder of MCHX, with approximately 14,664,380 shares worth $0.02B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of MCHX, including RENAISSANCE TECHNOLOGIES LLC, CITADEL ADVISORS LLC.
Our composite Smart Money Score for MCHX is 56 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
6 institutions opened new positions in MCHX during Q1 2026, while 5 fully exited. 3 added to existing positions and 16 trimmed.
MCHX institutional ownership fell by 0.01 percentage points quarter-over-quarter, with a net change of +1 holders.
The top 10 institutions account for 97.8% of all reported 13F value in MCHX, and the top 25 account for 100.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Marchex, Inc. (MCHX) Institutional Ownership