Your question doesn’t make sense.
When you say “rollover”, that would indicate that you withdrew the money from the 401(k) and deposited it in another qualified retirement plan, such as an IRA or a Roth IRA. It doesn’t matter what kind of investments you hold in the IRA, and in fact you may hold many different kinds of investments in an IRA. The new IRA that you opened might issue a form 5498, although this is often done later in the year, and the trustee of the new IRA is correct that you have nothing to report. But the withdrawal from the 401(k) must be reported. The plan administrator for the 401(k) will issue you a form 1099-R. It may be mailed to you or it may be available on your account online. You will need to contact the administrator of the 401(k) if you don’t receive the 1099-R, because if you don’t report the distribution on your tax return as a rollover, the IRS will assume that it was a taxable withdrawal and send you a bill for additional tax and penalties.
If you simply changed investments within the 401(k), that is also not a tax reportable event, but you would not of received a form 5498.
If you withdrew the money from the 401(k) and invested it in a regular brokerage account in stocks and other funds, and which was not part of a qualified plan, then your withdrawal from the 401(k) is completely taxable as well as subject to early withdrawal penalty is unless you are over age 55. The new brokerage account might send you tax statements if there were dividends or reinvestments in the mutual funds that should be reported, but the brokerage would not send you a form 5498.
I am hoping that you meant to say that you did a rollover from the 401(k) into an IRA account which was that invested in stocks and other funds. In this case, you have nothing to report from the new account, but you must report the 1099R for the distribution from the 401(k).
