Western Alliance Bancorporation has announced a share repurchase program authorized by its Board of Directors, allowing for the buyback of up to $300 million worth of the Company's common stock. The initiative is designed to return excess capital to shareholders and mitigate share price volatility. Purchases may occur through open market or private transactions, block trades, and under any trading plan adopted following SEC regulations. The timing, price, and number of shares repurchased will depend on various factors, including market conditions and regulatory requirements.