Thanks for your answer, @AmyC . I am still not clear on the holding period. Should I use the holding period fidelity reported to IRS so that the transactions show up the "correct" 8949 page, but then use the actual dates from supplemental form to ensure the tax value is correct.
As an example, for the 76 shares one. Should that be reported on long term section of 8949 because that is what Fidelity has reported to IRS, but I change the date Acquired to the correct one.
I hope that makes sense 🙂
