Biren Tech's stock price plummeted 5.10% during intraday trading on Tuesday, as investor sentiment was weighed down by concerns over potential equity dilution and a significant upcoming share unlock.

The sharp decline follows the company's recent proposal to adopt an H-share option scheme and H-share incentive plan, raising market fears that the move could dilute existing shareholders' equity. Compounding the selling pressure is the imminent expiry of the lock-up period for the company's controlling shareholder and over ten cornerstone investors on May 23.

The potential overhang is substantial, with the controlling shareholder holding approximately 1.5 billion shares and cornerstone investors collectively holding a significant stake. The dual concerns have led to a negative market reaction, with the stock underperforming amidst broader pressure in the semiconductor sector.