Yes. You have to report all your income, no matter how little it is. When Fidelity says it's de minimis, it means they did not send it to the IRS because they were not required to. But you still have to report the income. However, if an amount is less than 50 cents, you do not have to report it and should not enter it in your tax return.
If you look in the top right corner of the first page of the Fidelity form, under the account number, I think you will see a line in small print that says "Due to de minimis rules this form is not filed with the IRS."
