Did you work for them either as employee or independent contractor and this sale is part of a close-out of that relationship?
If not, they should have issued 1099-MISC.
If this is purely for sale of stock, you would list it the investment section. It would be Long-term loss and subject to the loss limitations of a LTCL.
It might be best to request a corrected 1099-NEC and a new 1099-MISC from the hospital. In the meantime, I would show the name/ID # of the hospital and list it under the input for 1099-NEC and show zero.
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