Microsoft retired 0.1% of its shares in twelve months, so this stake grew 0.1% without buying a share.
Shares held, 8 quarters
Superinvestors › Bill Ackman
Bill Ackman’s cannibal stocks
Pershing Square · 13F for Q2 2026
3cannibals held
$5.2Bin these positions
Q2 2026latest 13F filing
Meta Platforms has retired 12.2% of its shares since its peak.
Shares held, 8 quarters
Mastercard retired 3.9% of its shares in twelve months, so this stake grew 4.1% without buying a share.
Shares held, 8 quarters
Values as reported in the 13F at quarter end. See the Q2 2026 filing on EDGAR.
Questions
Which cannibal stocks does Bill Ackman own?
In the Q2 2026 13F, Pershing Square held MSFT, META, MA. 3 of them are on the Buyback Radar leaderboard.
Where does this data come from?
From Pershing Square's 13F filings with the SEC, the last eight quarters, amendments applied, options excluded. A 13F shows US-listed stock positions at quarter end and is filed up to 45 days later, so it is a record, not a live portfolio.
How do buybacks help Bill Ackman?
Mastercard retired 3.9% of its shares in the last twelve months. That alone made every remaining share, including Bill Ackman's 2,124,646, 4.1% bigger as a slice of the company, without buying anything.
Bill Ackman’s moves in companies like these are covered on Cannibal Stocks.
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