US futures are now pointing higher and before the bell, Israel-based pharma giant Teva Pharmaceutical Industries Ltd (NASDAQ:TEVA) is up 4.68% to US$21.25.
It comes after a regulatory filing from Warren Buffett's Berkshire Hathaway (NYSE:BRK) revealed the latter had nearly doubled its stake in the company during the first quarter.
Berkshire has added 21.6mln more shares of Teva, bringing its entire stake to 40.54mln shares. It also boosted its stake in Apple (NASDAQ:AAPL) and agri-giant Monsanto Company (NYSE:MON).
Elsewhere, Macy's Inc (NYSE:M) shares are up 0.23% to US$30 ahead of the bell and ahead of quarterly earnings, in which analysts expect to see US$0.35 per share on revenue of US$5.39bn before the opening bell.
Micron Technology Inc (NASDAQ:MU) shares are up 1.5% to US$54.82 in pre-market deals after RBC Capital started the stock with an 'outperform' rating.
Yesterday, Stifel analyst Kevin Cassidy raised his price target on the stock to US$101 from US$95. The new target is reportedly the highest on Wall Street, and represents more than 90% upside from current levels.
Meanwhile, Verastem Inc (NASDAQ:VSTM) shares plunged 9.73% to US$4.73 before the bell. It came as the firm unveiled a US$35mln stock offering.
Arbor Realty Trust (NYSE:ABR), the real estate investor, saw shares plunge over 4% to US$8.93 after-hours after the mortgage lender also announced a public offering of shares.