Presidential adviser faces conflict of interest claims over oil refiner’s activities
Fuels America cuts ties with RFA after report of deal with Carl Icahn
Billionaire gains on investment in oil refiner ahead of rule change
Weak start to 2016 worries managers already fretting about redemptions
Veteran activist’s investment vehicle is trading at its lowest level in three years
Activist investor makes rare foray into Silicon Valley start-up world
Quick sales of newly created units carry risk of big liabilities
Nasdaq hit by biotech and social media selling
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