X0609 4 2026-04-30 0002002660 Pershing Square USA, Ltd. PSUS 0001056513 ACKMAN WILLIAM A false C/O PERSHING SQUARE CAPITAL MGMT., L.P., 787 ELEVENTH AVENUE, 9TH FLOOR NEW YORK NY 10019 true Chief Executive Officer false Common Shares of Beneficial Interest 2026-04-30 4 P 0 3500000 50 A 3500000 D Common Shares of Beneficial Interest 2026-04-30 4 P 0 500000 42 A 4000000 D Common Shares of Beneficial Interest 2026-04-30 4 P 0 841000 50 A 841000 I See footnotes Common Shares of Beneficial Interest 2026-04-30 4 P 0 21200 50 A 21200 I See footnotes Common Shares of Beneficial Interest 2026-04-30 4 P 0 34971 50 A 56171 I See footnotes On April 30, 2026, Pershing Square Inc. ("PS") and the Issuer completed a combined transaction, consisting of (i) an initial public offering and a concurrent private placement of PS common stock and (ii) an initial public offering (the "PSUS IPO") and a concurrent private placement (the "PSUS Private Placement") of the Issuer's Common Shares of Beneficial Interest ("Common Shares"). Reflects the acquisition of Issuer Common Shares on April 30, 2026 in the PSUS IPO. Reflects the acquisition of Issuer Common Shares on April 30, 2026 through open market purchase. Reflects the acquisition of Issuer Common Shares on April 30, 2026 in the PSUS Private Placement. Reflects Issuer Common Shares held by a limited liability company that is wholly owned by the Reporting Person's spouse. Reflects Issuer Common Shares held by trusts for the benefit of the Reporting Person's family members. The Reporting Person may be deemed to be the beneficial owner of these shares for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended. The Reporting Person disclaims beneficial ownership of these shares, except to the extent of any pecuniary interest therein. By: /s/ William A. Ackman 2026-04-30