X0102 24F-2NT LIVE 0001806095 XXXXXXXX 333-237048 false false N-1A Datum One Series Trust 50 S LaSalle Street Chicago IL X1 60603 Polar Capital Emerging Market Stars Fund S000068601 Polar Capital Emerging Market Stars Fund C000219507 Polar Capital Emerging Market Ex-China Stars Fund S000079543 Polar Capital Emerging Market Ex-China Stars Fund C000240614 BRANDES INTERNATIONAL EQUITY FUND S000084885 Class C C000249523 Class I C000249524 Class R6 C000249525 Class A C000249526 BRANDES INTERNATIONAL SMALL CAP EQUITY FUND S000084886 Class A C000249527 Class C C000249528 Class I C000249529 Class R6 C000249530 BRANDES GLOBAL EQUITY FUND S000084887 Class R6 C000249531 Class A C000249532 Class C C000249533 Class I C000249534 BRANDES SMALL CAP VALUE FUND S000084888 Class A C000249535 Class R6 C000249536 Class I C000249537 BRANDES EMERGING MARKETS VALUE FUND S000084889 Class C C000249538 Class I C000249539 Class A C000249540 Class R6 C000249541 BRANDES CORE PLUS FIXED INCOME FUND S000084890 Class A C000249542 Class I C000249543 Class R6 C000249544 BRANDES SEPARATELY MANAGED ACCOUNT RESERVE TRUST S000084891 BRANDES SEPARATELY MANAGED ACCOUNT RESERVE TRUST C000249545 POLAR CAPITAL INTERNATIONAL SMALL COMPANY FUND S000085283 POLAR CAPITAL INTERNATIONAL SMALL COMPANY FUND C000250258 Stewart Investors Global Emerging Markets Leaders Fund S000089902 Select Shares C000256745 First Sentier American Listed Infrastructure Fund S000094758 Class I Shares C000263293 First Sentier Global Listed Infrastructure Fund S000094759 Class I Shares C000263294 811-23556 333-237048 03/31/2026 3227459099.00 1387554246.00 1476208975.00 2863763221.00 363695878.00 0.00 0.000138100 50226.40 0.00 50226.40 Tracy L. Dotolo Tracy L. Dotolo, Treasurer, Principal Financial Officer, and Principal Accounting Officer 06/18/2026