Group 1 - Semrush (SEMR.US) shares surged over 74%, reaching $11.8, following news of a potential acquisition by Adobe (ADBE.US) [1] - Adobe is reportedly nearing a deal to acquire Semrush for approximately $1.9 billion, with an agreement possibly being finalized today [1] - The acquisition offer from Adobe is at $12 per share, representing a premium of about 77.5% compared to Semrush's closing price of $6.76 on Tuesday [1]