Snowflake Inc. (SNOW) experienced a significant pre-market decline of 5.02% on Tuesday, as the cloud data platform's shares came under pressure following reports of substantial insider selling.

The stock's downturn comes amid disclosures of large share disposals by company directors. According to regulatory filings, Director Mark Garrett sold 100,000 Snowflake shares, while Director Frank Slootman sold 432,176 shares and filed to sell an additional 162,924 shares worth approximately $43 million.

These insider transactions signal potential profit-taking following Snowflake's recent strong performance, with the stock having rallied nearly 50% since the company reported better-than-expected quarterly earnings. The significant volume of shares being sold by company insiders has raised concerns among investors about the stock's near-term valuation prospects.