Updates
** Utility firm TXNM Energy's TXNM.N shares rise 6.9% to an all-time high of $56.51
** Company says it would be acquired by Blackstone's BX.N infrastructure unit in an $11.5 bln deal, including debt
** TXNM shareholders will receive $61.26/share, a premium of around 15% to stock's last closing price - based on Reuters calculation and LSEG data
** The deal is expected to be completed in the second half of 2026
** TXNM CEO Pat Collawn will step down upon the closing of the transaction, insider Don Tarry will succeed her
** Including session's move, shares up 15% YTD
(Reporting by Sumit Saha in Bengaluru)
((Sumit.Saha@thomsonreuters.com;))