Answer:
The answer is: Not guilty of insider trading
Step-by-step explanation:
If we follow the case: United States v. Newman, 773 F.3d 438 (2d Cir. 2014), we can argue that insider trading only happens when the person who releases the non public information did it for improper purposes. This means that the alleged insider released information knowing that it would be used for illegal purposes.
In this case, if you were not aware that the information your colleague got from your notes was going to be used illegally, then you are not liable for his illegal actions.