Item 19. (b)

CERTIFICATION UNDER SECTION 906 OF SARBANES-OXLEY ACT OF 2002

Name of Issuer: T. Rowe Price Institutional Large-Cap Core Growth Fund 

In connection with the Report on Form N-CSR for the above named Issuer, the undersigned hereby certifies, to the best of his knowledge, that:

 

1.

The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934;

 

2.

The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Issuer.