Level 15

When all else fails, read the instructions.

Form 1099-B instructions, Page 8

Box 1d. Proceeds
Enter the gross cash proceeds from all dispositions
(including short sales) of securities, commodities, options,
securities futures contracts, or forward contracts. Show a
loss, such as one from a closing transaction on a written
option or forward contract, as a negative amount by
enclosing it in parentheses.