When you negotiate the price to ”sell” at, it’s perfectly legitimate for that price to be negative.
Outside of a few very rare circumstances, that’s not what “sell” means. 99.9999999999% of the time, “selling for a negative price” is more accurately called “buying”.
Outside of a few very rare circumstances, that’s not what “sell” means. 99.9999999999% of the time, “selling for a negative price” is more accurately called “buying”.