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Exhibit 32.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Peakstone Realty Trust (the “Company”), in connection with the Company’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2024 (the “Report”), hereby certifies that:

(i)the Report fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated:			October 30, 2024			By:			/s/ Javier F. Bitar
									Javier F. Bitar
									Chief Financial Officer and Treasurer
									(Principal Financial Officer)