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Head-to-head comparison

Bill Ackman vs Lee Ainslie

Bill Ackman
Pershing Square Capital
Q8/10
"Concentrated bets on high-quality businesses with activist catalysts."
8 positionsSince 2004
Lee Ainslie
Maverick Capital
Q8/10
"Long-short equity, deep fundamental, team-based research."
5 positionsSince 1993
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Recent moves — Q1 2026

Latest quarter activity for each manager.

Bill Ackman
Lee Ainslie
  • METANEW
  • GOOGLNEW
  • GLDNEW
  • ASMLNEW
  • KLANEW
  • LRCXNEW
  • PDDEXIT
  • MSFTEXIT
  • CSGPEXIT
  • LPLAEXIT
  • CMGEXIT
  • CEGEXIT
  • VSTEXIT
  • BABAEXIT
  • SPOTEXIT
  • PGREXIT
  • TMOEXIT
  • CSXEXIT
  • BNREDUCE -99%
  • NVDAREDUCE -94%
  • UNPREDUCE -94%
  • COFREDUCE -87%
  • LYVREDUCE -73%
  • CRSREDUCE -61%
  • TSMREDUCE -35%
  • APIREDUCE -32%
  • CRHREDUCE -27%
  • DHRREDUCE -12%
  • AMZNREDUCE -10%

Data sourced from 13F filings with the SEC. Overlap in top positions is a concrete consensus signal, not investment advice.