SeaStar Medical is trading at $3.69, up 5.73% in pre-market; no confirmed catalyst for October 9 was identified. - The latest major company news was the FDA’s October 7 Breakthrough Device Designation for SeaStar Medical’s SCD therapy in adult sepsis; available evidence does not establish that it explains the rise. - Broader index futures point higher, but evidence does not establish that market sentiment is driving the move.