This is in PA which is no-fault. She has an IRA (401k) from work, and I have one too. Both are at the same investment company, but in different accounts, each with the respective names of each.

In a divorce, Are they summed together and divided equally (in half) to each spouse? Or does each get what they have under their own name, considering it as never having been co-mingled?

Likewise, if one partner has a mutual fund account that was funded with inheritance money, does it matter if that account is solely under the name of the spouse who's the heir or in an account that's under both spouse names?