there is no box 12 on a 1099-B so the reference is probably box 12V on the W-2. since it seems the date acquired is 2023, you should have gotten a 2023 w-2. You'll have to check with the company. as a side note you may own additional shares of the company. these would likely be only the shares sold to cover the payroll tax or other costs so it's possible you own additional shares.
