Possessing stolen property on Wall Street only appears to be a crime if you "knowingly possesses stolen property, with intent to benefit himself or a person other than an owner thereof or to impede the recovery by an owner thereof." [0] This ruling makes the insider trading law more like the law dealing with stolen property.

[0] http://ypdcrime.com/penal.law/article165.htm#p165.40

EDIT: Wikipedia identifies SAC as being based in CT, which has different laws.