0001524513 2025-10-31 2025-10-31 0001524513 isust:S000080439Member 2025-10-31 2025-10-31 false 2025-10-31 497 0001524513 N-1A 2026-02-27 <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold; text-align: center;">iShares U.S. ETF Trust</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; text-align: center;">Supplement dated October 9, 2026</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; text-align: center;">to the currently effective Summary Prospectus, Prospectus and</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; text-align: center;">Statement of Additional Information (the “SAI”)</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; text-align: center;">for the iShares Strategic Metals ETF (ISTM) (the “Fund”)</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;"><span style="font-weight: bold;"></span><span style="font-weight: bold;"><span style="font-style: italic;"><span style="text-decoration: underline;">Change in the Fund’s “Summary of Principal Risks” </span></span></span></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">The section of the Fund’s Summary Prospectus and Prospectus entitled “Summary of Principal Risks” is amended to delete the paragraph entitled “Non‑Diversification Risk”.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">If you have any questions, please call 1‑800‑iShares (1‑800‑474‑2737).</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 8pt; font-family: arial;">iShares<sup style="font-size: 75%; vertical-align: top;">®</sup> is a registered trademark of BlackRock Fund Advisors and its affiliates.</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; font-weight: bold; text-align: center;">iShares U.S. ETF Trust</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; text-align: center;">Supplement dated October 9, 2026</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; text-align: center;">to the currently effective Summary Prospectus, Prospectus and</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; text-align: center;">Statement of Additional Information (the “SAI”)</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial; text-align: center;">for the iShares Strategic Metals ETF (ISTM) (the “Fund”)</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;"><span style="font-weight: bold;"></span><span style="font-weight: bold;"><span style="font-style: italic;"><span style="text-decoration: underline;">Change in the Fund’s “Summary of Principal Risks” </span></span></span></div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">The section of the Fund’s Summary Prospectus and Prospectus entitled “Summary of Principal Risks” is amended to delete the paragraph entitled “Non‑Diversification Risk”.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: arial;">If you have any questions, please call 1‑800‑iShares (1‑800‑474‑2737).</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 8pt; font-family: arial;">iShares<sup style="font-size: 75%; vertical-align: top;">®</sup> is a registered trademark of BlackRock Fund Advisors and its affiliates.</div> iShares U.S. ETF Trust