CurveGlobal launched three-month Sterling Overnight Index Average (SONIA) futures earlier this year.
Former Deutsche Bank trader Guillaume Adolph fined £180,000 and banned from industry by the FCA.
Libor is in the process of being phased out and will be replaced by SONIA in April this year.
SONIA futures contracts aim to facilitate the UK’s transition from the LIBOR benchmark.
Neil Danziger has also been banned from the industry after manipulating Japanese Yen Libor submissions at RBS.
FCA will no longer sustain Libor as bank submissions have not improved, according to chief executive, Andrew Bailey.
Investment banks agree to settle claims of yen Libor rigging, although did not admit any wrongdoing.
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Tom Hayes was the first to be jailed for 11 years following appeals to his conviction for Libor manipulation.
The Swiss regulator handed out a total of CHF 99 million ($96.3 million) in fines to a group of banks.