Skip to navigationSkip to main contentSkip to right columnADVERTISEMENTAdam Levy, The Motley FoolSat, July 4, 2026 at 6:57 PM GMT+2 5 min readBill Ackman has made it clear: He wants to be the next Warren Buffett. That's easier said than done, to be sure. But the fund manager in charge of Pershing Square has revamped his investment style since his activist days and runs a concentrated portfolio of long-term, mostly passive holdings.So, it's no surprise that Ackman's investment decisions are rooted in the same investment philosophy as Warren Buffett's. That said, Ackman has notably invested in one area Buffett historically avoided: technology stocks. Some of