MediaMath, ad tech's first DSP, sold for $22M after a $165M debt load

MediaMath, founded in 2007, built the world's first demand-side platform for automating real-time programmatic ad buying and was valued around $1 billion at its peak. By the early 2020s it faced a declining advertising market, robust competition, negative working capital and heavy lease obligations at 4 World Trade Center.

Searchlight Capital Partners led a recapitalization in which equity holders committed up to $150 million, but the business still could not reach cash-flow-positive scale. In 2023 a sale process run by Houlihan Lokey contacted 29 prospective buyers; a buyer bid up to $70 million in May, then on June 24 its board voted against the deal. With defaults accruing and no financing alternatives, MediaMath filed Chapter 11 on June 30, 2023 with $165 million of funded debt and roughly $125 million of trade liabilities.

The company wound down its platform and cut most staff, then sold its DSP and DMP assets at auction in August 2023 for $22 million in cash to Infillion, about 2% of its peak valuation. More than $100 million was owed to creditors.

Chapter 11 with $165M funded debt (first lien $95M, second lien $70M) plus ~$125M trade liabilities; sold to Infillion for $22M, about 2% of its $1B peak valuation.

The business never achieved the scale needed to be cash-flow positive, so every market downturn converted into a liquidity event.

A $150M recapitalization bought time but did not fix unit economics, and the money was gone within two years.

Negative working capital and a landmark Manhattan lease burned cash while revenue shrank.

A single buyer was the last resort, and when its board refused the deal there was no plan B.

Scale in a declining market is not a moat: MediaMath was the category creator yet never reached cash-flow-positive scale, and the recapitalization money postponed the day the math stopped working.

Infillion relaunched MediaMath as part of its platform in April 2024 after the $22M asset purchase. About 300 employees lost their jobs in the wind-down, and creditors, including landlords and vendors, recovered pennies on the dollar through the structured dismissal of the cases.