STOCK REVERSE in 2025

I had a stock with 30 shares and the Company did a reverse stock split of shares at a ratio of 1 for 15 effective May 27, 2025.  I now have two shares.  Schwab listed unrealized loss of $1,222.04 as of Dec 31 2025.  Can I take this loss on my taxes for 2025?   I don't have a 1099B.

Thank you, RRC