Check out the companies making the biggest moves midday: Kymera Therapeutics — The biotech stock surged 17% after Kymera enrolled in a Phase 2b Broaden2 trial for its KT-621 drug, which aims to treat atopic dermatitis. BlackBerry — Shares rallied 20% after the software company and former maker of the eponymous cellphone posted better-than-expected fiscal first-quarter results. BlackBerry earned an adjusted 4 cents per share on revenue of $152.9 million. Analysts expected a profit of 3 cents per share on revenue of $137.2 million, per FactSet. Apple — Shares of the iPhone maker slid nearly 5% after Apple announced price hikes on MacBooks and iPads. The company pointed to growing demand and rising costs for memory and storage as a driver. AeroVironment — Shares of the maker of unmanned aircraft systems slid 4%. AeroVironment is slated to report fourth-quarter results next Monday, and analysts are calling for earnings of $1.46 per share on revenue of $557.2 million, per FactSet. Shares are on pace for their fourth straight losing day after AeroVironment disclosed earlier this week that it will have to restate results for the three- and nine-month periods ended Jan. 31. Microsoft — Shares dropped to session lows and was last down 3.8% after the tech giant said it would raise Xbox console prices by $100 for the 512-gigabyte model and by $150 for its …