Last Friday FERC approved a settlement of $181m against Greenhat Energy to finalise a long running case around market manipulation in the PJM market (see here). The alleged offence involved market manipulation in an acquired portfolio of Financial Transmission rights and also defaults around them. This article on the Utility Dive web site describes the case in more detail.
This week the CFTC fined a trader $100,000 for spoofing on CME in calendar spreads in Natural Gas and Gasoline futures. The activity occurred in 2020. The notice from the CFTC can be found here and an original notice from the CME here.