Malin Galik will succeed Thomas Peterffy as CEO of the company in the third quarter this year.
FINRA has fined Interactive Brokers for failing to comply with short selling rules between 2012 and 2015.
Hong Kong authorities found Interactive Brokers breached code of conduct for execution of algo and electronic orders.
Online broker failed to submit any suspicious transaction reports on potential market abuse for a year.
FINRA, Nasdaq, Bats and NYSE pursued action against firms for violating market access rules in the US.
The acquisition completes Two Sigma's journey to expand into the US options market, as it looks to reinvigorate Timber Hill business.
Firm said the shutdown of its options market making business is expected to cost $25 million.
Options market making business to be phased out over next few months.