Twisted rational zeros of linear recurrence sequences

We introduce the notion of a twisted rational zero of a non-degenerate linear recurrence sequence (LRS). We show that any non-degenerate LRS has only finitely many such twisted rational zeros. In the particular case of the Tribonacci sequence, we show that $1\mathrm{/}3$ and $-5\mathrm{/}3$ are the only twisted rational zeros which are not integral zeros.