GSK (GSK) news today — Nov 11, 2025: New AN2 TB collaboration, buyback activity filed, shares test 12‑month high
GSK shares hit a 12-month high Friday, with U.S. ADRs reaching $48.245 intraday. The company disclosed a 170,000-share buyback in London, priced between 1,753.5p and 1,779.0p. GSK and AN2 Therapeutics also announced a new tuberculosis drug research collaboration backed by Gates Foundation funding.