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Head-to-head comparison
Carl Icahn vs Jeffrey Ubben
Carl Icahn
Q8/10Icahn Enterprises
"Buy undervalued, force change, exit at fair value."
6 positionsSince 1990
Jeffrey Ubben
Q8/10ValueAct Capital
"Constructive activism. Partner with management, not fight them."
5 positionsSince 2000
Recent moves — Q4 2025
Latest quarter activity for each manager.
Data sourced from 13F filings with the SEC. Overlap in top positions is a concrete consensus signal, not investment advice.