20 Large-Cap Stocks Insiders and Short Sellers Are Dumping Like Crazy

8. Rubrik, Inc. (NYSE:RBRK)

Short Float: 8.62%

Insider Transaction: -2.29%

Rubrik, Inc. (NYSE:RBRK), headquartered in California, is a cybersecurity and data management company specializing in offering zero-trust data security solutions for enterprises. The company integrates backup, disaster recovery, and ransomware detection into a single cloud-native platform. Despite the large number of competitors, the company thrived in the market by targeting hybrid and multi-cloud environments and focusing on cyber resilience and regulatory compliance. The company leverages machine learning and real-time analytics to differentiate its platform and support mission-critical workloads.

Rubrik, Inc. (NYSE:RBRK) had strong revenue growth in its most recent quarter, but continues to report its non-GAAP EPS in negative value for the fiscal year 2026. The company anticipates moderation in cash flow for 2026, which represents difficulties in maintaining the current growth pace. The company’s Annapurna platform, which promises customers secure access, mobilization, and governance of data on Google Cloud, is still in its infant stage and, hence, may take some time before it can generate potential earnings for the company.

With 8.62% of its float being sold short, Rubrik, Inc. (NYSE:RBRK) faces strong contrarian sentiment among traders. There is some level of retained conviction among leadership as reflected in the insider selling, which remains relatively limited at 2.29%. However, the elevated short interest calls attention to valuation risks before investing in the stock.