Just in case this helps anyone in the future, here's what I did (and I believe this is the right thing to do)...
Find out your purchase date (i.e. 01/01/2018) - the sale will remain in "Review" status unless you enter this.
Find out your earliest purchase price, since the default is First in, First out (FIFO) (i.e. $15)
Find out the number of shares. (i.e. 5000)
Your 1099 will look something like this:
11/24/20 0.000 24.81 N/A ... ... ... Principal payment 16 Cost Basis Factor: 0.[removed]
So to calculate your cost basis, you do this:
(Share price) x (# of shares) x (Cost Basis Factor) = Cost Basis
In my example, it would look like this:
$15 x 5000 x 0.[removed] = $24.42
That means my gain/loss = 0.39 (or zero as far as IRS is concerned.)
I had over 60 of these transactions, so it was extremely tedious.
Hope this helps someone.
