X0102 24F-2NT LIVE 0001758583 XXXXXXXX 333-236320 false false N-2 Arca U.S. Treasury Fund 4551 Glencoe Avenue Suite 350 Marina del Rey CA X1 90292 true 811-23392 333-236320 12/31/2025 0.00 2072.00 36862.00 38934.00 0.00 (38934.00) 0.000138100 0.00 0.00 0.00 Consistent with footnote 348 in Release No. IC-33836, to facilitate the transition to calculating fees on Form 24F-2, the Fund has reduced the aggregate sales price of securities sold during the fiscal year reported in response to Item 5(i) by the amount of excess shares that were registered under the Fund's registration statement on Form N-2 that remain unsold prior to the end of the Fund's most recent fiscal year. Specifically, the Fund sold shares with an aggregate value of $483,299 since inception and had $99,516,701 of shares that were registered under Form N-2 and remained unsold prior to the end of the Fund's most recent fiscal year. /s/ Vance Sanders Vance Sanders, Treasurer 03/18/2026