California Labor Code sec.s 96(k), 98.6, prohibits the termination of an employee for "lawful conduct occurring during nonworking hours away from the employer's premises."
Thus, unless you are inviolation of federal insider trading law (17 CFR sec. 240.10b5-1), then you may want to consider doing nothing and discussing the matter with no one else. Because it's none of your employer's business, regardless of its internal policies.
Note: an attorney for your employer represents the employer. So, by asking questions of that attorney, you have effectively sought the confidence of your adversary. Moreover, that attorney could be disbarred for not immediately notifying you that he/she cannot discuss the matter with you, because of the direct conflict of interest.
Hope this helps.
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