I would declare that I work for a financial institution but declare that FINRA Rule 3210 does not apply, so I don’t have to get permission from my employer (would never do that) and also not data has to be sent to them.
In Switzerland, this procedure is very unusual.
There are banks that prohibit all employees to have accounts with another banks so they must have everything in-house which makes it easier for the control room to monitor transactions.
Other banks, are quite open or even suggest to have accounts with other banks too, especially in areas where colleagues potentially have access to your account data (e.g. reporting functions, etc.). Usually there employees are categorised into 3 categories: free to trade (because no access to relevant information), trades must be reported (there is usually a tool to report own trades), or trading prohibited (the only way around this is a discretionary mandate where someone else manages your portfolio and you are not involved in the decision making).
So it’s up to the employee to conform with the employers requirements and not a third party such as a IBKR to enforce it or send information to the employer. This is probably just US protectionist stuff and it doesn’t work like that in CH.
So based on that I would argue to be exempted from FINRA Rule 3210 and such reporting, whatever that FINRA rule means in detail, but I don’t think it’s relevant for a CH financial institution.