In 2012, I started investing in a REIT with two separate purchases and dividend reinvestment. In October of 2019, the REIT merged with a new REIT. I received new shares in the new REIT plus they paid $1 for each old share. I received a 1099-B for the merger. On the 1099-B it lists under 1a Cash Merger Consideration under Transaction. 1e (Cost or other basis) is left blank. (5) Non-covered security is YES. Notation indicates cost basis method not reported to IRS. How do I determine Cost or other basis for this transaction?
