NEW YORK — Massachusetts regulators are fining MassMutual $4 cardinal and ordering it to overhaul its social-media policies aft accusing the institution of failing to supervise an worker whose online cheerleading of GameStop’s banal helped motorboat the frenzy that shook Wall Street earlier this year.
The colony announced Thursday by Secretary of the Commonwealth William Galvin centers connected the actions of Keith Gill, who was an worker astatine a MassMutual subsidiary from April 2019 until January 2021. His tenure ended arsenic GameStop’s...