Altimeter Capital Sells Nearly 900,000 Maplebear Shares

Institutional investor reduces stake in online grocery delivery company

Mar. 15, 2026 at 8:21am by Ben Kaplan

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Altimeter Capital Management LP, an institutional investor, has reduced its stake in Maplebear Inc. (NASDAQ:CART) by selling 891,817 shares in the third quarter. The firm now owns 3,324,951 shares of the online grocery delivery company, making it Maplebear's 17th largest shareholder.

Why it matters

Altimeter Capital's move to sell a significant portion of its Maplebear holdings could signal a shift in investor sentiment towards the company. As one of Maplebear's largest institutional investors, Altimeter's actions may influence other investors and impact the stock price.

The details

According to a recent SEC filing, Altimeter Capital Management LP sold 891,817 shares of Maplebear Inc. in the third quarter, reducing its stake in the company by 21.1%. Altimeter now owns 3,324,951 shares of Maplebear, or 1.27% of the company's outstanding stock, worth an estimated $122,225,000.

  • Altimeter Capital sold the shares in the third quarter of 2026.

The players

Altimeter Capital Management LP

An institutional investor and one of the largest shareholders of Maplebear Inc.

Maplebear Inc.

An online grocery delivery company that operates under the Instacart brand and is publicly traded on the NASDAQ under the ticker symbol CART.

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The takeaway

Altimeter Capital's decision to sell a significant portion of its Maplebear holdings could signal a shift in investor sentiment towards the online grocery delivery company. As one of Maplebear's largest institutional investors, Altimeter's actions may influence other investors and impact the stock price going forward.