StoneCo Shareholder Madrone Partners Trims Position with $8.9 Million Sale

When a long-term institutional backer trims its stake in a foreign fintech company, it alters the supply of shares and signals shifting risk appetites to retail investors. On October 7, 2026, venture capital firm Madrone Partners, L.P. disclosed that it had sold a portion of its holdings in StoneCo Ltd., a prominent provider of financial technology and payment processing services.

According to an amended Schedule 13D/A filed with the U.S. Securities and Exchange Commission (SEC) on October 7, 2026, Madrone Partners sold 750,000 Class A common shares of StoneCo. The open-market transaction occurred on October 5, 2026, at a weighted average price of $11.90 per share, yielding approximately $8.92 million. Following the sale, Madrone Partners reported beneficial ownership of 24,589,276 Class A shares.

Shifting Portfolios and Political Risk

Madrone Partners, a Denver-based venture capital firm associated with high-profile directors including Walmart Chairman Gregory Penner, has been a major shareholder in StoneCo. While the sale represents a relatively small reduction of Madrone's total position—leaving it with an approximate 10.6% stake in the company—the timing coincides with a period of intense volatility for Brazilian equities.

The broader Brazilian market has been navigating heightened political risk surrounding the country's upcoming presidential runoff election scheduled for October 25, 2026. Brazilian fintech stocks, including StoneCo, experienced a sharp post-election rally early in October after a strong first-round showing by conservative candidates raised hopes for fiscally conservative economic policies. However, long-term pressures, such as high domestic interest rates set by the Central Bank of Brazil and rising credit provision costs, continue to weigh on the sector's underlying margins.

What is StoneCo?

For global investors unfamiliar with the name, StoneCo is a leading financial technology company that provides payment processing, banking, and software solutions to merchants across Brazil. Often referred to as "the bank for entrepreneurs" in its domestic market, the company competes directly with other major payment processors like PagSeguro and Nu Holdings.

The company is scheduled to release its third-quarter 2026 financial results on November 12, 2026, after the close of U.S. markets. Analysts expect the earnings report to shed light on how well the fintech is managing elevated local borrowing costs and credit growth in a challenging macroeconomic environment.

In your brokerage app

StoneCo Ltd. is listed in New York on the Nasdaq exchange under the ticker STNE. Retail investors can also find exposure to the company through broad-market exchange-traded funds that track Brazilian equities, such as the iShares MSCI Brazil ETF (EWZ), which holds a basket of the country's largest financial, commodity, and technology companies.