insider dealing

López Obrador has used tax information to accuse Gálvez of insider dealing in government contracts, something she denies, noting the López Obrador’s own administration has contracted services from her companies.

Williams outlined charges of “brazen” insider dealing by the billionaire, saying that he exploited his entrée to various corporations to reap tips that he slipped to people in his own inner circle, who deployed the knowledge to make stock trades and millions of dollars.

"I have read the section of Piers Morgan's memoirs, The Insider, dealing with late December 1998 and I can now see that Mr Morgan does not set out truthfully how he obtained the information on Mr Mandelson," he said.

The rules, aimed at maintaining financial stability, include provisions to combat market manipulation and insider dealing.

As part of their obligations to regulators, banks must report suspicious transactions to watchdogs when there are reasonable grounds to suspect ill intent, such as potential insider dealing or market manipulation.