Bill Ackman

Bill Ackman's activist hedge fund. Concentrated bets, loud opinions, and market-moving 13Fs.

Latest filing
2026-03-31
Filed on
2026-05-15
Positions
11
13F AUM
$13.71B

Alert me when Bill Ackman files next

New 13Fs drop with 0 warning. Get an email within minutes of the SEC posting.

Top 20 Current Positions

IssuerCUSIPSharesValue
BROOKFIELD CORP11271J10759.70M$2.42B
AMAZON COM INC02313510611.45M$2.39B
UBER TECHNOLOGIES INC90353T10029.96M$2.15B
MICROSOFT CORP5949181045.65M$2.09B
RESTAURANT BRANDS INTL INC76131D10322.65M$1.67B
META PLATFORMS INC30303M1022.66M$1.52B
HOWARD HUGHES HOLDINGS INC44267T10218.85M$1.19B
SEAPORT ENTMT GROUP INC8122152005.02M$107.9M
ALPHABET INC02079K107311.7K$89.4M
HERTZ GLOBAL HLDGS INC42806J70015.24M$70.3M
ALPHABET INC02079K30532.4K$9.3M

Q-over-Q Changes (2025-12-31 → 2026-03-31)

New positions (1 total)

IssuerPrior sharesLatest sharesΔ Value
MICROSOFT CORP5.65M+$2.09B

Added to (1 total)

IssuerPrior sharesLatest sharesΔ Value
AMAZON COM INC9.61M11.45M+$167.4M

Reduced (3 total)

IssuerPrior sharesLatest sharesΔ Value
ALPHABET INC6.16M311.7K−$1.84B
BROOKFIELD CORP61.40M59.70M−$401.8M
ALPHABET INC678.3K32.4K−$203.0M

Sold out entirely (1 total)

IssuerPrior sharesLatest sharesΔ Value
HILTON WORLDWIDE HLDGS INC3.03M−$870.0M

View this filer's raw filings on SEC EDGAR →

Data from SEC EDGAR quarterly 13F-HR filings. 13F filings are due 45 days after quarter end and reflect equity positions only (no shorts, no options, no non-US listings). By law they lag reality by up to 6 weeks — treat as historical, not real-time.