Check out the companies making the biggest moves premarket: Replimune Group — Shares were up over 130% for the clinical-stage biotechnology company after a Food and Drug Administration advisory panel voted in favor of the company's RP1 drug trial results for a type of skin cancer. Wedbush Securities upgraded Replimune Group to outperform from neutral following the decision. Jersey Mike's — Shares were up 1% after the sandwich restaurant chain made its public debut on Thursday. Jersey Mike's opened at $21 per share , a dip from its public offering price of $23 per share. It closed with a 6% fall the day of its debut. Chevron — Shares were rose slightly after the energy giant reported better-than-expected earnings and revenue for the second quarter. Chevron recorded $12.1 billion in net income, a nearly 400% increase from the same period last year. ExxonMobil — Shares fell 2% after the energy giant reported weaker-than-expected earnings for the second quarter. The company earned an adjusted $3.52 per share, while analysts polled by LSEG expected a profit of $3.60 per share. Moderna — The biotech giant dropped more than 4% despite the company posting second-quarter results that beat the Street. Moderna lost $1.97 per share on revenue of $145 million. Analysts expected a loss of $2.03 per share on revenue of $102.9 million. Full-year revenue guidance was also above expectations. Amazon — The e-commerce giant's shares shot up more than 11% after the firm reported better-than-expected revenue and cloud growth for the second quarter on Thursday. Revenue in Amazon's cloud segment expanded 37% year over year during the quarter, surpassing Wall Street's expectations for 31% growth and marking the unit's fastest growth in 18 quarters. Apple — The tech giant saw shares fall more than 7% after it reported stronger-than-expected revenue for the fiscal third quarter, driven by a 22% increase in iPhone sales. Coinbase — Shares of the crypto exchange slid more than 5% after posting its third straight quarterly loss on Thursday evening. The company reported a loss of $359.5 million, or $1.36 per share, while analysts had anticipated a loss of 17 cents a share. Revenue of $1.22 billion was shy of the $1.31 billion estimate. Reddit — The social media platform's shares dropped 12%, underscoring Wall Street's concerns about the company's search-referral traffic from Google. CEO Steve Huffman said search referrals were "choppy" in the quarter. The company did report second-quarter earnings that beat on the top and the bottom lines, while issuing guidance that sailed past expectations. — CNBC's Christina Cheddar Berk, Yun Li and Fred Imbert contributed reporting.