Not a Hank Pym story, oddly.

I like the original cover better than the reprint: originally from Tales of Suspense #32, and reprinted in Where Monsters Dwell #34, "The Man in the Beehive!" With art by Jack Kirby and inks by Dick Ayers. No script credit, but odds are, Stan Lee, probably.

When a thief plans to rob his beekeeper boss, it's bad enough that he gets caught in the act, then worse when he finds said boss is actually a mutant. Worse still when the thief is shrunk to the size of a bee and forced to enter the beehive.

I think this story was probably done about the same time that super-heroes were starting to ramp up and little sci-fi/horror stories were beginning to wind down at Marvel. But this seems like it could've been the prototype for Hank Pym, except it's not, at all.