State Street Institutional U.S. Government Money Market Fund - Opportunity Class OPGXX

Beginning on 12/15/2017 the assets displayed are at the Portfolio level. Prior to this date the assets displayed were at the share class level.

¹Total Annual Fund Operating Expense Waivers. SSGA FM, as the investment adviser to each Fund is contractually obligated, through April 30, 2025 (i) to waive up to the full amount of the advisory fee payable by each Fund, and/or (ii) to reimburse a Fund for expenses to the extent that Total Annual Fund Operating Expenses (exclusive of non-recurring account fees, interest, taxes, extraordinary expenses, acquired fund fees, any class-specific expenses, such as distribution, shareholder servicing, sub-transfer agency and administration fees) exceed 0.07% of average daily net assets on an annual basis (the “Total Annual Fund Operating Expense Waiver”). The Total Annual Fund Operating Expense Waiver may not be terminated prior to April 30, 2025 with respect to any Fund except with approval of the Fund’s Board of Trustees.

The Fund’s investment adviser, SSGA Funds Management, Inc. (the “Adviser” or “SSGA FM”), and its affiliates, may voluntarily reduce all or a portion of their fees and/or reimburse expenses of the Fund or a share class to the extent necessary to maintain a certain minimum net yield, which may vary from time to time and from share class to share class within the Fund, in SSGA FM’s sole discretion (any such waiver or reimbursement of expenses being referred to herein as a “Voluntary Reduction”), or a yield below a specified level, which may vary from time to time in the Adviser’s sole discretion. The Fund has agreed, subject to certain limitations, to reimburse the Adviser and its affiliates for the full dollar amount of any Voluntary Reduction incurred beginning on May 1, 2020. During the fiscal year ended December 31, 2023, the Adviser and its affiliates did not waive fees or reimburse expenses under the Voluntary Reduction. Each of the Adviser and its affiliates may, in its sole discretion, irrevocably waive receipt of any or all reimbursement amounts due from the Fund. Any future reimbursement by the Fund of the Voluntary Reduction would increase the Fund’s expenses and may reduce the Fund’s yield during such period. There is no guarantee that the Voluntary Reduction will be in effect at any given time or that the Fund will be able to avoid a negative yield.

Holdings subject to change.

† The subsidized yield reflects the yield calculation with voluntary reduction currently in effect. Without the reduction returns would have been lower.

* All portfolio information provided is as of the date referenced, unless otherwise noted, and is subject to change. Ratings by S&P, Moody's, and Fitch apply to the credit quality of a portfolio and are not a recommendation to buy, sell or hold securities of a fund, are subject to change, and do not remove market risks associated with investments in the fund. For complete information on the methodology and definitions used by each rating agency, please visit the following websites; S&P- www.standardandpoors.com, Moody's- www.moodys.com, Fitch- www.fitchratings.com