I thought agents did share marks with the hacker, since they are using the same device (and share the same condition monitor).
However, sprites don't, and there's no way to read the rules and find something that says they would. Houseruling it to be possible is probably not a big deal, but all it would do is make TMs even more motivated to rely entirely on sprites, to the point that they won't even need to take any matrix actions themselves ever if they do it right. I personally think that's a hot pile of smelly, trash-strained piss, but that's because I have a real problem with how Catalyst has decided that only deckers are allowed to be good at the matrix.