UK's Morgan Advanced Materials rises on upbeat profit outlook
** Shares of Morgan Advanced Materials MGAMM.L up 6.8% at 276.5p
** Stock among top gainers on FTSE 250 index .FTMC
** Co sees adjusted operating profit for 2026 to be around the top end of analysts' expectations range
** Also starts formally engaging with potential buyers for its Thermal Products division
** Separately, co names Elizabeth Knowles as new CFO, replacing Richard Armitage
** MGAMM has risen about 28% so far this year