@Critter-3 said "the gross income >1100 includes the GROSS sales on the 1099-B"
I'm not sure that's right. Per Pub 501 (page 2): "Gross income includes gains, but not losses, reported on Form 8949 or Schedule D". https://www.irs.gov/pub/irs-pdf/p501.pdf
"Gross income" can be tricky, for example it does include gross rents rather than net rent.
But, the IRS does get a copy of that 1099-B. Hopefully their computers are sophisticated enough to read the gain/loss on a basis reported category 1099-B and not send out notices.
