The tech giant has developed a power source based on nuclear fusion, and the first reactors, small enough to fit on the back of a truck, could be ready for use in a decade.
Charif Souki of Cheniere Energy, a Houston-based enterprise hoping to one day capitalize on the fracking boom, raked in a whopping $142 million last year.
Ackman's firm Pershing Square Capital Management has acquired a 9.8 percent position in industrial gas company Air Products & Chemicals, a stake valued at $2.2 billion.
While some small companies benefit from the growth of fracking, a controversial oil- and gas-extraction process, critics fear it could do more harm than good.