You'll get both yes and no opinions. Doesn't look like a hammerstone, but does appear to be fractured river cobble. Fractured by the hand of man or by nature...who knows? But you say found at a spring site littered with flakes and blade core. Keep looking. If the site is a little above the surrounding area, it is likely the cobble didn't roll up hill where you found it.
Found in context with cores, littered with flakes, etc. Northeast Alabama, year-round Spring site. View attachment 1342987 View attachment 1342988 View attachment 1342989