if you made a direct transfer from one plan to the other, you might not get a 1099R. And in that case, you have nothing to report to the IRS so don’t worry about it.
In most cases, a direct transfer does not create a taxable event and does not have to be reported. A direct transfer would only be a taxable event if you went from a pretax plan to a Roth IRA, which would be considered a Roth IRA conversion.
