Marchex, Inc.
US ˙ NasdaqGS ˙ US56624R1086

SecurityMCHX / Marchex, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership66,276 shares
Latest Disclosed Value $ 102,742
Dimensional Fund Advisors Lp ownership in MCHX / Marchex, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 66,276 shares of Marchex, Inc. (US:MCHX) valued at $102,728 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 66,276 shares of Marchex, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $100,740 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-07 2026-03-31 13F MARCHEX CL B 56624R108 66,276 0 0.00 103 -7.27 0.0000
2026-02-12 2025-12-31 13F MARCHEX CL B 56624R108 66,276 -21,572 -24.56 110 -29.94 0.0000
2025-11-12 2025-09-30 13F MARCHEX CL B 56624R108 87,848 -13,939 -13.69 157 -28.31 0.0000
2025-08-12 2025-06-30 13F MARCHEX CL B 56624R108 101,787 0 0.00 220 32.73 0.0001
2025-05-13 2025-03-31 13F MARCHEX CL B 56624R108 101,787 4,251 4.36 166 -2.94 0.0000
2025-02-13 2024-12-31 13F MARCHEX CL B 56624R108 97,536 0 0.00 171 -6.59 0.0000
2024-11-07 2024-09-30 13F MARCHEX CL B 56624R108 97,536 0 0.00 182 21.33 0.0000
2024-08-09 2024-06-30 13F MARCHEX CL B 56624R108 97,536 -348 -0.36 150 11.94 0.0000
2024-05-10 2024-03-31 13F MARCHEX CL B 56624R108 97,884 -26,333 -21.20 134 -20.24 0.0000
2024-02-07 2023-12-31 13F MARCHEX CL B 56624R108 124,217 -20,037 -13.89 169 -19.62 0.0000
2023-11-09 2023-09-30 13F MARCHEX CL B 56624R108 144,254 -48,896 -25.32 209 -48.90 0.0001
2023-08-09 2023-06-30 13F MARCHEX CL B 56624R108 193,150 -8,987 -4.45 409 11.44 0.0001
2023-05-12 2023-03-31 13F MARCHEX CL B 56624R108 202,137 1,470 0.73 368 0.0001
2023-02-09 2022-12-31 13F MARCHEX CL B 56624R108 200,667 -1,552 -0.77 0 -100.00 0.0001
2022-11-10 2022-09-30 13F MARCHEX CL B 56624R108 202,219 16,111 8.66 339 38.37 0.0001
2022-08-12 2022-06-30 13F MARCHEX CL B 56624R108 186,108 -10,592 -5.38 245 -45.56 0.0001
2022-05-13 2022-03-31 13F MARCHEX CLB 56624R108 196,700 -4,169 -2.08 450 -9.64 0.0001
2022-02-09 2021-12-31 13F MARCHEX CLB 56624R108 200,869 4,934 2.52 498 -14.87 0.0002
2021-11-12 2021-09-30 13F MARCHEX CLB 56624R108 195,935 29,288 17.57 585 14.71 0.0002
2021-08-12 2021-06-30 13F MARCHEX CLB 56624R108 166,647 3,154 1.93 510 11.11 0.0002
2021-05-14 2021-03-31 13F MARCHEX CLB 56624R108 163,493 24,339 17.49 459 68.13 0.0002
2021-03-08 2020-12-31 13F/A-2 MARCHEX CLB 56624R108 139,154 -1,400,319 -90.96 273 -91.64 0.0001
2021-02-11 2020-12-31 13F MARCHEX CLB 56624R108 139,154 -1,400,319 273 98.5931
2020-11-12 2020-09-30 13F MARCHEX CLB 56624R108 1,539,473 -109,823 -6.66 3,264 25.25 0.0014
2020-08-13 2020-06-30 13F MARCHEX CLB 56624R108 1,649,296 -201,804 -10.90 2,606 -2.91 0.0011
2020-05-14 2020-03-31 13F MARCHEX CLB 56624R108 1,851,100 -41,027 -2.17 2,684 -62.47 0.0014
2020-02-14 2019-12-31 13F MARCHEX CLB 56624R108 1,892,127 -3,038 -0.16 7,152 20.18 0.0026
2019-11-12 2019-09-30 13F MARCHEX CLB 56624R108 1,895,165 551 0.03 5,951 -33.17 0.0023
2019-08-13 2019-06-30 13F MARCHEX CLB 56624R108 1,894,614 33,375 1.79 8,905 1.15 0.0035
2019-08-12 2019-03-31 13F/A-2 MARCHEX CLB 56624R108 1,861,239 88,941 5.02 8,804 87.44 0.0035
2019-05-10 2019-03-31 13F MARCHEX CLB 56624R108 1,861,239 88,941 8,804
2019-02-26 2018-12-31 13F/A-1 MARCHEX CLB 56624R108 1,772,298 2,536 0.14 4,697 -4.53 0.0021
2019-02-13 2018-12-31 13F MARCHEX CLB 56624R108 1,772,298 2,536 4,697
2018-11-13 2018-09-30 13F MARCHEX CLB 56624R108 1,769,762 -175 -0.01 4,920 -9.16 0.0019
2018-08-10 2018-06-30 13F MARCHEX CLB 56624R108 1,769,937 131,797 8.05 5,416 21.11 0.0022
2018-05-11 2018-03-31 13F MARCHEX CLB 56624R108 1,638,140 86,190 5.55 4,472 -10.79 0.0019
2018-02-12 2017-12-31 13F MARCHEX CLB 56624R108 1,551,950 93,698 6.43 5,013 11.25 0.0021
2017-11-13 2017-09-30 13F MARCHEX CLB 56624R108 1,458,252 148,643 11.35 4,506 15.45 0.0020
2017-08-11 2017-06-30 13F MARCHEX CLB 56624R108 1,309,609 101,478 8.40 3,903 18.78 0.0018
2017-05-12 2017-03-31 13F MARCHEX CLB 56624R108 1,208,131 -126,884 -9.50 3,286 -7.12 0.0016
2017-02-09 2016-12-31 13F MARCHEX CLB 56624R108 1,335,015 -177,474 -11.73 3,538 -15.56 0.0018
2016-11-10 2016-09-30 13F MARCHEX CLB 56624R108 1,512,489 2,713 0.18 4,190 -12.73 0.0023
2016-08-09 2016-06-30 13F MARCHEX CLB 56624R108 1,509,776 29,042 1.96 4,801 -27.14 0.0028
2016-05-13 2016-03-31 13F MARCHEX CLB 56624R108 1,480,734 64,290 4.54 6,589 19.58 0.0039
2016-02-10 2015-12-31 13F MARCHEX CLB 56624R108 1,416,444 75,155 5.60 5,510 1.94 0.0034
2015-11-13 2015-09-30 13F MARCHEX CLB 56624R108 1,341,289 107,353 8.70 5,405 -11.51 0.0035
2015-08-14 2015-06-30 13F MARCHEX CLB 56624R108 1,233,936 132,025 11.98 6,108 35.85 0.0037
2015-05-14 2015-03-31 13F MARCHEX CLB 56624R108 1,101,911 29,837 2.78 4,496 -8.64 0.0028
2015-02-06 2014-12-31 13F MARCHEX CLB 56624R108 1,072,074 -54,238 -4.82 4,921 5.28 0.0032
2014-11-13 2014-09-30 13F MARCHEX CLB 56624R108 1,126,312 -28,432 -2.46 4,674 -66.33 0.0033
2014-08-08 2014-06-30 13F MARCHEX CLB 56624R108 1,154,744 -22,875 -1.94 13,880 12.14 0.0096
2014-05-14 2014-03-31 13F MARCHEX CLB 56624R108 1,177,619 6,231 0.53 12,377 22.16 0.0092
2014-02-12 2013-12-31 13F MARCHEX CLB 56624R108 1,171,388 3,466 0.30 10,132 19.16 0.0079
2013-11-13 2013-09-30 13F MARCHEX CLB 56624R108 1,167,922 9,454 0.82 8,503 21.92 0.0074
2013-08-15 2013-06-30 13F MARCHEX CLB 56624R108 1,158,468 1,158,468 6,974 0.0066
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.