SEI Exchange Traded Funds

08/21/2026 | Press release | Distributed by Public on 08/21/2026 14:51

Prospectus by Investment Company (Form 497)

SEI EXCHANGE TRADED FUNDS

SEI Ang U.S. Research Enhanced U.S. Large Cap ETF
(the "Fund")

Supplement dated August 21, 2026 to the
Statement of Additional Information (the "SAI") dated June 30, 2026

This supplement provides new and additional information beyond that contained in the SAI and should be read in conjunction with such SAI.

The SAI is hereby amended and supplemented to reflect the following change to the Fund.

Change in Creation Unit Size

Effective August 28, 2026, the number of Fund shares that constitute a Creation Unit will change from 100,000 shares to 50,000 shares, and the approximate value of such Creation Unit will increase to $1,250,000.

Accordingly, in the section titled "Creation and Redemption of Creation Units," under the sub-section titled "General," the table thereunder is hereby deleted and replaced with the following:

Shares Per
Creation Unit
Approximate Value Per
Creation Unit (USD)

SEI Ang Research Enhanced U.S. Large Cap ETF

50,000

$

1,250,000

There are no other changes to the SAI.

PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE

SEI-F-1650 (08/26)

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