Check out the companies making headlines before the bell. Crypto stocks — Stocks tied to the price of bitcoin slid after the cryptocurrency dropped 5% to its lowest level since February , with the now defunct Mt. Gox exchange beginning repayments to creditors, as expected . Coinbase and MicroStrategy each lost 5% in premarket trading. Among miners, Iris Energy tumbled 8%, while CleanSpark fell 5%. Marathon Digital and Riot Platforms were down 6% and 4%, respectively. Instructure — The educational technology stock popped more than 3% following reported interest from Francisco Partners and KKR around a potential acquisition. The two private equity firms are in the final round of bidding and due to submit binding offers next week, sources familiar with the matter told Reuters . Macy’s — Shares of the retailer jumped more than 6% following a Wall Street Journal report that an investor grouped has hiked its takeout offer. Arkhouse Management and Brigade Capital Management are now offering about $24.80 per share for Macy’s, up from $24 previously, the report said. Tesla — The electric vehicle manufacturer popped 2%, marking a continuing comeback after its second-quarter vehicle deliveries number beat analyst estimates earlier this week. The shares were up 24% for the week heading into Friday. Novo Nordisk — U.S. traded shares of the pharmaceutical giant rose 1.9% premarket even after a study from Harvard linked semaglutide, which is present in Novo Nordisk’s Ozempic and Wegovy, to an increased risk of a rare eye disease . Deutsche Bank said the quality of the evidence was “very low” and said the results had little implications. Shell — Shares popped 1%. Shell on Friday said it expects to post an impairment hit of up to $2 billion tied to its Singapore and Rotterdam plants. — Tech Zone Daily’s Hakyung Kim, Tanaya Macheel, Sarah Min and Jesse Pound contributed reporting.