Clinical Trial Results: Positive outcomes for Sorrento Therapeutics' clinical trials for its drug candidates usually drive the stock price up. Negative or inconclusive results can lead to a price decline.

Regulatory Approvals: FDA approval of Sorrento's drugs is a major catalyst for price increases. Delays or rejections by regulatory bodies can negatively impact the stock.

Partnerships and Acquisitions: Strategic collaborations or potential acquisitions involving Sorrento can significantly affect investor sentiment and stock price.

Financial Performance: Sorrento's revenue, profitability, and cash flow impact investor confidence. Strong financial results can lead to a price increase.

Market Sentiment: Overall market conditions, including investor risk appetite and sector trends, can influence the demand and price of Sorrento's stock.

Competition: Activities of competing companies and the development of rival therapies can impact Sorrento's market share and stock valuation.

Intellectual Property: The strength and breadth of Sorrento's patent portfolio are critical for long-term value. Legal challenges or patent expirations can negatively affect the stock.

Management Team: The experience and credibility of Sorrento's leadership team are important factors. Changes in management can also influence investor perception.

News and Media: Media coverage, press releases, and social media discussions can all impact investor sentiment and trading activity, affecting the stock price.