Form 485APOS STATE STREET INSTITUTION

		ROPES & GRAY LLP PRUDENTIAL TOWER 800 BOYLSTON STREET BOSTON, MA 02199-3600 WWW.ROPESGRAY.COM

April 15, 2025

VIA EDGAR

EDGAR Operations Branch

Division of Investment Management

Securities and Exchange Commission

450 Fifth Street, N.W.

Washington, D.C. 20549

(Securities Act of 1933 File No. 333-286313)

Dear Sir or Madam:

Pursuant to Rule 313 of Regulation S-T, the Trust hereby requests identifiers for the Trust Class shares of State Street Institutional U.S. Government Money Market Fund (the “Fund”), which were registered electronically via EDGAR through a registration statement on Form N-14 filed by the Trust on April 1, 2025 (accession number 0001193125-25-070515). This unofficial filing is being made via EDGAR submission type 485APOS using the Securities Act of 1933 file number assigned to the aforementioned registration statement on Form N-14 (333-286313) solely for the purpose of obtaining class identifiers for the Fund, pursuant to the “Notice and FAQ’s re: Mandatory Series and Class (Contract) Identifiers” (found at http://www.sec.gov/info/edgar/ednews/seriesclassfaq063006.htm).

If you have any questions or need any clarification concerning the foregoing or this transmission, please call the undersigned at (617) 951-7114.