What did Bill Ackman buy in Q1 2026?

Bill Ackman opened 1 new position (MSFT) and added to 0 existing holdings in the Q1 2026 13F.

What did Bill Ackman sell in Q1 2026?

Bill Ackman exited 1 position (HLT) and trimmed 2.

What Bill Ackman bought and sold in Q1 2026

In Q1 2026, Bill Ackman (Pershing Square Capital Management) opened 1 new position — including MSFT (15.3%), trimmed 2, exited 1 (HLT). The book stood at $13.71B across 11 positions, filed May 15, 2026.

1New0Added2Trimmed1Exited

Share𝕏 in

New positions (1)

MSFTMicrosoft Corp15.3% · $2.09B

Trimmed (2)

GOOGAlphabet Inc-cl C-95% shares · 0.7% · $89M
GOOGLAlphabet Inc-cl A-95% shares · 0.1% · $9M

Exited (1)

HLTHilton Worldwide Holdings INwas 5.6% of book

Bill Ackman's other filings

Q4 2025 changes Q2 2025 changes Q1 2025 changes Q4 2024 changes

Bill Ackman's full portfolio →The whole cohort in Q1 2026 →

Changes vs the prior quarter's 13F, long US equity positions only (no shorts, options, or non-US listings). ADD/TRIM are share- count changes of ±20% or more. Sourced from SEC EDGAR. Not investment advice.