MediaAlpha, Inc.
US ˙ NYSE ˙ US58450V1044

SecurityMAX / MediaAlpha, Inc.
InstitutionQuantbot Technologies LP
Latest Disclosed Ownership29,119 shares
Latest Disclosed Value $ 270,807
Quantbot Technologies LP ownership in MAX / MediaAlpha, Inc.

On May 13, 2026 - Quantbot Technologies LP filed a 13F-HR form disclosing ownership of 29,119 shares of MediaAlpha, Inc. (US:MAX) valued at $270,807 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 0 shares of MediaAlpha, Inc.. The current value of the position is $241,397 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)
2026-05-13 2026-03-31 13F MEDIAALPHA INC- COM 58450V104 29,119 29,119 271 0.0111
2026-02-10 2025-12-31 13F MEDIAALPHA INC- COM 58450V104 0 -38,615 -100.00 0 -100.00
2025-11-12 2025-09-30 13F MEDIAALPHA INC- COM 58450V104 38,615 18,021 87.51 439 95.11 0.0120
2025-08-13 2025-06-30 13F MEDIAALPHA INC- COM 58450V104 20,594 -5,405 -20.79 226 -6.25 0.0058
2025-05-13 2025-03-31 13F MEDIAALPHA INC- COM 58450V104 25,999 -11,248 -30.20 240 -42.86 0.0076
2025-02-11 2024-12-31 13F MEDIAALPHA INC- COM 58450V104 37,247 11,151 42.73 421 -11.02 0.0154
2024-11-13 2024-09-30 13F MEDIAALPHA INC- COM 58450V104 26,096 7,154 37.77 473 89.56 0.0186
2024-08-09 2024-06-30 13F MEDIAALPHA INC- COM 58450V104 18,942 18,942 249 0.0121
2024-05-06 2024-03-31 13F MEDIAALPHA INC- COM 58450V104 0 -700 -100.00 0 -100.00
2024-02-14 2023-12-31 13F MEDIAALPHA INC- COM 58450V104 700 700 8 0.0005
2022-05-16 2022-03-31 13F MEDIAALPHA INC- COM 58450V104 0 -400 -100.00 0 -100.00
2022-02-11 2021-12-31 13F MEDIAALPHA INC- COM 58450V104 400 400 6 0.0005
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.