In this issue: AMERICA’S BIGGEST CHARITIES Which altruistic organizations raise the most money—and which do it most efficiently? Plus: John Lennon’s Sgt. Pepper piano, up for sale, THE SEPTUAGENARIAN WHIZ KID Shaun McConnon has sold three tech startups for a total of $1 billion. Now he’s building a cybersecurity business that could soon be worth a billion by itself BY AMY FELDMAN, MODERNA’S MYSTERY MEDICINES Backed by world-class science, a stealthy biotech has raised $1.9 billion by promising to change medicine forever. A new lawsuit opens a rare window into its secrets. BY NATHAN VARDI AND MATTHEW HERPER, AMERICA’S RICHEST CELEBRITIES Rappers, golfers, Hollywood titans, even a magician: Fame might be fickle,but it sure pays well for these 20 wealthy entertainers and much more...