I assume that this pertains to US taxes, not Canadian taxes.
I'm confused here. An ESPP is not a "retirement program", it's a "compensation" program. Accordingly, I'd say you didn't "transfer" the stock to an IRA, you made a "contribution", (an "in-kind" contribution), to an IRA, (maybe even an excess "contribution").
I looked up "Form TSP-4" and saw that it's not equivalent to a US Form 1099-DIV, it's Canada's "Electronic Funds Transfer Message Format" that pertains to Thrift Savings Plans, and there's only one "Amount" box on that form. I'm sort of assuming that your employer determined that what you did amounted to a "disposition" of some sort and reported the compensation created by the disposition of the shares in that Amount box.
If I've characterized what happened here correctly and you were working under the assumption that the transfer of the shares would be a tax-free event, a rollover of sort, then I think that's an incorrect assumption.
