Primordial Black Hole ( PBH ) formation can be enhanced by the presence of strongly coupled scalar and spinor fields during the primeval radiative expansion .
We outline that the likelihood of PBH formation exhibits a sudden burst if the spinor field acquires a Higgs mass m _ { H } .
The typical PBH mass scale then exhibits a specific dependence on m _ { H } .
For m _ { H } \sim 100 eV , and coupling set by \beta \sim 10 , the possibility to form PBH exhibits a peak between 10 ^ { 8 } and 10 ^ { 9 } M _ { \odot } .