Sienna Gestion Trims Intuitive Surgical Stake by 93.5%

Hedge fund reduces holding in medical equipment provider during third quarter

Published on Mar. 9, 2026

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Sienna Gestion, a hedge fund, has trimmed its stake in Intuitive Surgical, Inc. (NASDAQ:ISRG) by 93.5% in the third quarter, according to a recent SEC filing. The firm now owns 1,394 shares of the medical equipment provider's stock, down from 21,369 shares previously.

Why it matters

Intuitive Surgical is a leading provider of robotic-assisted surgical systems, with its flagship da Vinci platform used in a wide range of minimally invasive procedures. The company's stock performance and institutional ownership are closely watched by investors as indicators of the broader adoption of its technology in the healthcare industry.

The details

According to the 13F filing, Sienna Gestion sold 19,975 shares of Intuitive Surgical during the third quarter, reducing its position to just 1,394 shares. The firm's holdings in Intuitive Surgical were valued at $568,000 at the end of the reporting period. Several other major institutional investors, including Vanguard Group, State Street Corp, and Geode Capital Management, maintain significant positions in the company.

  • Sienna Gestion filed its 13F report for the third quarter of 2026.

The players

Sienna Gestion

A hedge fund that has reduced its stake in Intuitive Surgical by 93.5%.

Intuitive Surgical, Inc.

An American medical technology company that develops and manufactures robotic-assisted surgical systems, including the da Vinci platform.

Vanguard Group

A major institutional investor that owns a significant stake in Intuitive Surgical.

State Street Corp

Another major institutional investor with a large position in Intuitive Surgical.

Geode Capital Management

An investment management firm that also holds a substantial stake in Intuitive Surgical.

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The takeaway

The reduction in Sienna Gestion's Intuitive Surgical position highlights the ongoing shifts in institutional ownership of the company's stock, which could signal changes in investor sentiment or portfolio rebalancing strategies. However, the continued strong institutional support from major players like Vanguard, State Street, and Geode suggests that Intuitive Surgical remains an attractive investment in the eyes of many large investors.