Credo Technology Group Holding Ltd (CRDO) experienced a significant pre-market plunge of 7.44% on Tuesday, reflecting heightened selling pressure during the extended trading session.

The decline was driven by broad weakness across the semiconductor sector, with the Philadelphia Semiconductor Index falling nearly 2% and dragging down key industry peers. Multiple chip and storage stocks posted notable losses in recent sessions, creating a negative sentiment environment for semiconductor companies.

Additionally, ongoing insider selling by CFO Daniel Fleming continued to weigh on market sentiment. The executive has been executing a previously disclosed plan to sell 60,000 shares, with 41,868 shares already sold between June 10 and 11. This selling activity, combined with profit-taking pressure following the stock's recent surge above $300, contributed to the downward movement.