Gilead Sciences' stock yo-yoed during after-hours trade Thursday after it revealed that $11.5-billion in anticipated charges related to its M&A spree will likely affect full-year earnings. Instead of an $8.45 to $8.85 per-share profit, as previously projected, the company is now guiding for an adjusted loss of $1.05 to $0.65 a share for 2026. The biopharma made upfront payments of $1.675 billion and $3.15 billion, respectively, to buy Ouro Medicines and Tubulis, while its deal to acquire cell th