After-Hours Stock Movers:

Ziopharm Oncology, Inc. (Nasdaq: ZIOP) 14.2% LOWER; announced a restructuring enabling the company to advance its TCR program. Approximately 60 positions have been eliminated. The Company expects the changes will extend the cash runway into the first half of 2023.

Endeavor Group Holdings, Inc. (NYSE: EDR) 11% HIGHER; entered into an agreement to acquire OpenBet, a leading content, platform and service provider to the sports betting industry, from Scientific Games Corporation (NASDAQ: SGMS) for $1.2 billion paid through a combination of cash ($1 billion) and Endeavors Class A common stock ($200 million).

Brookdale Senior Living Inc. (NYSE: BKD) 7% LOWER; announced that it proposes to offer $200 million aggregate principal amount of convertible senior notes due 2026, subject to market conditions and other factors.

Scientific Games (NASDAQ: SGMS) 4.3% HIGHER; Endeavor Group Holdings, Inc. (NYSE: EDR) 11% HIGHER; entered into an agreement to acquire OpenBet, a leading content, platform and service provider to the sports betting industry, from Scientific Games Corporation (NASDAQ: SGMS) for $1.2 billion paid through a combination of cash ($1 billion) and Endeavors Class A common stock ($200 million).

Huntsman (NYSE: HUN) 3.5% HIGHER; activist hedge fund Starboard Value LP has an 8.4% stake in and plans to agitate for change.

Acceleron Pharma Inc. (NASDAQ: XLRN) 3.4% HIGHER; Merck & Co., Inc. (NYSE: MRK) is nearing the deal to acquire Acceleron Pharma Inc. (NASDAQ: XLRN), in an agreement that could be completed as soon as this week, The Wall Street Journal reported citing people familiar with the matter.