Kaiser Aluminum (KALU) big move this week on results sees unusual buy 400 June $105 calls for $7.45. Kaiser Aluminum  is a leading North American producer of semi-fabricated specialty aluminum products, strategically focused on high-value sectors including aerospace/high-strength, packaging (can sheet), automotive extrusions, and general engineering. Kaiser maintains top-three market share positions in North American aerospace plate, North American can sheet, and automotive extrusions. Despite an 8% decline in shipments, adjusted EBITDA grew $35 million year-over-year in Q3, highlighting improved mix and pricing power. Management reiterated the longer-term goal of achieving mid- to high-20% EBITDA margins. Management cited solid demand across aerospace, packaging, general engineering, and automotive, with signs of aerospace destocking easing and packaging supply remaining tight.