Bill Ackman.
American billionaire hedge fund manager (born 1966)
- Reports this week
- 5
- Active events
- 1
- Connections
- 86
What's happening
Active this week
Earlier this month
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Bill Ackman built a $2.4 billion stake in Microsoft. Pershing Square sold its holding in Google parent Alphabet and increased its holding in Microsoft. Amazon was part of the tech quartet.Some support2 reports
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Bill Ackman considers Meta, Microsoft, and Amazon as undervalued investment targets for his fund.Well supported10 reports1 development inside
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Bill Ackman compared the Ivy League school to Hamas amidst anti-Israel protests in New Haven.Some support2 reports
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Bill Ackman increased his investment in Microsoft while simultaneously trimming his stake in Amazon.Some support2 reports
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Bill Ackman views Visa as high-quality business and added Netflix to his fund portfolio, while ICE operates and owns the NYSE.Well supported19 reports
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Bill Ackman's fund initiated a new position in Intercontinental Exchange (ICE), which owns the New York Stock Exchange.Some support1 report
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Bill Ackman and BlackRock are both offering access to private investments.Some support1 report
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CPKC's rail network stretches through the U.S. Midwest to Mexico, while Bill Ackman is mentioned regarding an activist investor value opportunity.Some support2 reports1 development inside
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Pershing Square acquired a stake in Canadian Pacific Railway and is backing Hunter Harrison as a candidate to replace the CEO.Some support1 report
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Bill Ackman described Visa and Mastercard as capital-light toll-takers, while Goldman Sachs identified both companies as favorite stocks.Some support2 reports
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Pershing Square disclosed investment stakes in both Visa Inc. and Mastercard, noting that both companies collect fees on transaction volumes.Well supported7 reports1 development inside
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Hollencrest Capital Management trimmed its investment position in Mastercard.Some support1 report
One to three months ago
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Bill Ackman, head of Pershing Square, stated that his investment ethos aligns with the principles of Ben Graham and Warren Buffett.Some support1 report
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Bill Ackman, Freddie Mac, and Congress are involved in discussions regarding valuation discounts and the separate chartering of enterprises.Some support1 report
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Bill Ackman, through Pershing Square, sold his entire stake in Alphabet (Google) in Q2 2026 amid AI product competition.Some support3 reports
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Investors like Bill Ackman, Elon Musk, and Warren Buffett are noted for holding significant concentrated stakes in big tech companies.Well supported5 reports
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Bill Ackman's takeover bid for Universal Music Group was rejected, and he sold his stake in The Hertz Corporation.Some support1 report
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Visa Inc. announced several new partnerships, including with Solana and Circle, and Kraken launched a debit card on its network.Some support1 report
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Wealth tax proposal targets ultra-wealthy individuals.Some support7 reports
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Bill Ackman's fund holds a significant stake in Netflix, which trades on the Nasdaq stock exchange.Some support2 reports
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Bill Ackman leads the hedge fund Pershing Square Capital Management.Well supported8 reports
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Bill Ackman invested $2 billion in Uber stock while new laws require changes to driver classification.Some support2 reports
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Bill Ackman's firm acquired significant stock in S&P on August 9, 2026.Some support2 reports
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Bill Ackman's fund, Pershing Square, holds investments in Restaurant Brands, which owns Burger King.Some support1 report
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Bill Ackman and Jeff Bezos were noted for advocating for the social impact of capitalism.Some support2 reports
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Bill Ackman and President Joe Biden are involved in reported tussles regarding societal issues.Some support1 report
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Bill Ackman discusses market signals relevant to chipmakers.Some support1 report
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Amidst criticism of Mayor Mamdani's policies, Bill Ackman linked Ken Griffin's moves to NYC's disaster, while Mamdani proposed a tax on Griffin's luxury property.Well supported5 reports
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Bill Ackman and Neri Oxman co-named a new research institute on July 21, 2026.Some support1 report
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Bill Ackman's firm holds multibillion-dollar stakes, while David Sacks criticized guardrails hurting US competitiveness.Some support1 report
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Bill Ackman and Carl Icahn engaged in an ideological clash over market principles and corporate excess.Some support1 report
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Bill Ackman, Anthropic, and Airbnb are involved in purchasing and leasing office buildings in New York City amid policy concerns.Some support2 reports
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Ackman's firm acquired Vantage for $2.1 billion, with Vantage affiliates domiciled in Wilmington.Some support2 reports
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Bill Ackman criticized the progressive policies of New York City leadership and praised Donald Trump as the most pro-business president.Some support2 reports
Gone quiet
No new reports in 90+ days-
Bill Ackman compares the stalled California High-Speed Rail Project to the success of SpaceX and other private ventures.Some support2 reports
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Bill Ackman praised President Trump's administration for managing the Iran conflict settlement as Iran leverages energy flows through the Strait of Hormuz.Some support1 report
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Prominent political figures, including Bernie Sanders, discuss the economic risks associated with taxation, such as expropriation of private property and company exodus.Some support1 report2 developments inside
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Major value investor Bill Ackman is reportedly selling his stake in Alphabet Inc., while the company continues to expand its AI and cloud services.Some support1 report
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Pershing Square made a big buy involving SpaceX and Microsoft on June 16th, led by Bill Ackman.Some support3 reports
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The Israel Innovation Authority reported on the growth of Israel's high-tech sector, noting Tel Aviv's global ranking.Some support1 report
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Bill Ackman threw weight behind Elon Musk after the successful SpaceX IPO, while Bernie Sanders commented on Musk's resulting wealth.Some support1 report
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Bill Ackman's Pershing Square increased its stake in Howard Hughes and holds a large stake in Brookfield Corporation.Well supported8 reports
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Bill Ackman's portfolio includes Brookfield Corporation, which benefits from Trump-era tariffs and onshoring trends.Some support3 reports
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Trump-era tariffs continue to benefit AI stocks, with new reports detailing specific investor holdings and market mentions.Some support1 report
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Bill Ackman's Pershing Square increased its ownership stake in Hertz Global Holdings, citing benefits from Trump tariffs and onshoring.Some support1 report
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Bill Ackman stated that he views Uber Technologies stock as being undervalued.Some support1 report
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Bill Ackman purchased shares of SEG and included the company in his Top 10 Stock Picks.Some support2 reports
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Berkshire Hathaway owns Duracell, while Bill Ackman serves as Executive Chairman of HHH, with a shareholder meeting scheduled in Manhattan.Some support1 report
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Bill Ackman initiated a new investment position in Amazon stock in August 2025.Well supported5 reports
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Bill Ackman's Pershing Square, alongside Renaissance Capital, announced a major fundraise, describing the deal as a closed-end fund IPO.Well supported3 reports
No events began in the chosen period. Widen it, or reset.
Around Bill Ackman this week
News at the entities that move Bill Ackman most-
Google StructuralGoogle referrals for publishers declined by 36%, according to Chartbeat data.Moves Bill Ackman
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Pershing Square StructuralThe fund is currently heavily invested in Uber, which is negatively impacting its performance.Moves Bill Ackman
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Mastercard TransactionalCommonwealth Bank adjusts its payment processing programs following changes in Reserve Bank of Australia's policy, affecting card network fees.Moves Bill Ackman
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Alcon StructuralLand Rover is utilizing Alcon brake setups and Eibach coil springs in an upgrade package.Moves Bill Ackman
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Meta TransactionalMeta is launching a new commercial wing specifically focused on AI deployment.Moves Bill Ackman
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Uber StructuralUber plans to expand operations into Houston.Moves Bill Ackman
Connections
The 40 strongest of 86, analyzed from the reporting. The bars show how strongly a change on one side reaches the other.-
Pershing Square Structural
Bill Ackman is the founder, CEO, and primary manager of the investment firm Pershing Square.
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Microsoft Transactional
Bill Ackman is actively increasing and building a significant equity stake in Microsoft through fund purchases.
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Mastercard Transactional
Bill Ackman and his funds hold disclosed equity investments in Mastercard, viewing it as a high-quality business.
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Amazon Structural
Bill Ackman and his firm maintain a significant, actively managed financial investment stake in Amazon.
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Google Structural
Bill Ackman maintains a significant investment stake in Google (Alphabet).
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HHH Structural
Bill Ackman serves as the Executive Chairman of HHH and directs its transformation strategy.
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Visa Inc. Transactional
Bill Ackman, through his investment firm, has made and disclosed equity investments in Visa Inc.
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Meta Transactional
Bill Ackman and his fund are actively investing in and increasing their stake in Meta Platforms.
Show all 40 connections
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Uber Structural
Bill Ackman's fund holds a significant, ongoing ownership stake in Uber following a major investment.
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Alcon Structural
Bill Ackman holds Alcon in his investment portfolio, tracking its performance and growth potential.
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New York City Operational
Bill Ackman actively opposes and criticizes New York City's policies, particularly regarding taxation and housing affordability.
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Elon Musk Operational
The relationship is characterized by mutual public support, with both individuals aligning on political issues and validating each other's corporate and personal milestones.
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Canadian Pacific Railway Transactional
Bill Ackman's investment vehicle, Pershing Square, acquired a stake in Canadian Pacific Railway.
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S&P Global Transactional
Bill Ackman invested in S&P Global's equity on August 14, 2026, and subsequently included it in his portfolio.
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Universal Music Group Transactional
Ackman made a takeover bid for UMG, which the company subsequently rejected.
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SEG Transactional
Bill Ackman purchased 5.02 million shares of SEG as part of his investment strategy.
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Chipotle Mexican Grill Transactional
Bill Ackman engaged in specific, time-bound financial transactions, including investing in and subsequently selling shares of Chipotle Mexican Grill.
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Intercontinental Exchange Transactional
Bill Ackman has made a current investment in the equity of Intercontinental Exchange.
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UMG Transactional
a deal or exchange
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S&P Transactional
Ackman's firm has made and continues to make significant financial investments in S&P Global.
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Netflix, Inc. Transactional
Bill Ackman initiated a new financial position in Netflix.
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City of New York Operational
Ackman has been publicly criticizing the policies and administration of the City of New York regarding specific issues like rent freezes.
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Herbalife Transactional
Bill Ackman held a sizeable short position in Herbalife.
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Ahmed Al Ahmed Transactional
Bill Ackman donated funds to Ahmed Al Ahmed's GoFundMe campaign.
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Hunter Harrison Mentioned together
Bill Ackman publicly supports Hunter Harrison as a potential candidate for a role at Canadian Pacific Railway.
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Alphabet Inc. Transactional
Bill Ackman has actively managed his financial stake in Alphabet Inc., including increases and subsequent divestment plans.
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Joe Biden Operational
The relationship involves active competitive friction and ideological disagreement regarding societal issues.
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The Hertz Corporation Transactional
Bill Ackman increased and subsequently sold his investment stake in The Hertz Corporation.
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Tel Aviv Stock Exchange Structural
Bill Ackman holds a 5% stake in the Tel Aviv Stock Exchange.
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New York Stock Exchange Operational
Ackman's investment fund utilizes the NYSE as a platform for trading and market bets.
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Donald Trump Operational
Ackman publicly aligns with Trump, offering support while also providing critical oversight on policy matters.
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Bruce Blakeman Transactional
Bill Ackman made a donation to the independent expenditure PAC supporting Bruce Blakeman.
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FED Mentioned together
Bill Ackman publicly critiques and tracks the Federal Reserve's monetary policy decisions, specifically regarding rate hikes.
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Warren Buffett Operational
Both are recognized as prominent fund managers who compete for capital and have influenced each other's careers.
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BlackRock Operational
Both entities compete in the market by offering access to private investments.
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California Shared context
Bill Ackman is discussed as being affected by the drawbacks of a proposed wealth tax in California.
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Ben Graham Mentioned together
Ackman's investment ethos is described as following Ben Graham's principles.
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CNBC Mentioned together
CNBC features and reports on the investment views and market commentary of Bill Ackman.
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Freddie Mac Operational
The entities are involved in a specific interaction concerning valuation discounts.
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Hamas Mentioned together
Bill Ackman made a public analogy comparing the Ivy League school to Hamas.
History
Events by the month they beganSeptember 2026
7 events- Bill Ackman expressed the belief that the Federal Reserve's recent rate hikes might be a mistake.
- Bill Ackman built a $2.4 billion stake in Microsoft. Pershing Square sold its holding in Google parent Alphabet and increased its holding in Microsoft. Amazon was part of the tech quartet.
- Bill Ackman compared the Ivy League school to Hamas amidst anti-Israel protests in New Haven.
- Bill Ackman increased his investment in Microsoft while simultaneously trimming his stake in Amazon.
- Bill Ackman's fund initiated a new position in Intercontinental Exchange (ICE), which owns the New York Stock Exchange.
- Bill Ackman and BlackRock are both offering access to private investments.
- Pershing Square acquired a stake in Canadian Pacific Railway and is backing Hunter Harrison as a candidate to replace the CEO.
August 2026
17 events- Bill Ackman views Visa as high-quality business and added Netflix to his fund portfolio, while ICE operates and owns the NYSE.
- Bill Ackman described Visa and Mastercard as capital-light toll-takers, while Goldman Sachs identified both companies as favorite stocks.
- Pershing Square disclosed investment stakes in both Visa Inc. and Mastercard, noting that both companies collect fees on transaction volumes.
- Hollencrest Capital Management trimmed its investment position in Mastercard.
- Bill Ackman, head of Pershing Square, stated that his investment ethos aligns with the principles of Ben Graham and Warren Buffett.
- Bill Ackman, Freddie Mac, and Congress are involved in discussions regarding valuation discounts and the separate chartering of enterprises.
- Bill Ackman, through Pershing Square, sold his entire stake in Alphabet (Google) in Q2 2026 amid AI product competition.
- Bill Ackman's takeover bid for Universal Music Group was rejected, and he sold his stake in The Hertz Corporation.
- Visa Inc. announced several new partnerships, including with Solana and Circle, and Kraken launched a debit card on its network.
- Wealth tax proposal targets ultra-wealthy individuals.
- Bill Ackman's fund holds a significant stake in Netflix, which trades on the Nasdaq stock exchange.
- Bill Ackman invested $2 billion in Uber stock while new laws require changes to driver classification.
- Bill Ackman's firm acquired significant stock in S&P on August 9, 2026.
- Bill Ackman's fund, Pershing Square, holds investments in Restaurant Brands, which owns Burger King.
- Bill Ackman and Jeff Bezos were noted for advocating for the social impact of capitalism.
- Bill Ackman and President Joe Biden are involved in reported tussles regarding societal issues.
- Bill Ackman discusses market signals relevant to chipmakers.
July 2026
8 events- Investors like Bill Ackman, Elon Musk, and Warren Buffett are noted for holding significant concentrated stakes in big tech companies.
- Amidst criticism of Mayor Mamdani's policies, Bill Ackman linked Ken Griffin's moves to NYC's disaster, while Mamdani proposed a tax on Griffin's luxury property.
- Bill Ackman and Neri Oxman co-named a new research institute on July 21, 2026.
- Bill Ackman's firm holds multibillion-dollar stakes, while David Sacks criticized guardrails hurting US competitiveness.
- Bill Ackman and Carl Icahn engaged in an ideological clash over market principles and corporate excess.
- Bill Ackman, Anthropic, and Airbnb are involved in purchasing and leasing office buildings in New York City amid policy concerns.
- Ackman's firm acquired Vantage for $2.1 billion, with Vantage affiliates domiciled in Wilmington.
- Bill Ackman criticized the progressive policies of New York City leadership and praised Donald Trump as the most pro-business president.
Show 1 earlier month
June 2026
19 events- Bill Ackman considers Meta, Microsoft, and Amazon as undervalued investment targets for his fund.
- CPKC's rail network stretches through the U.S. Midwest to Mexico, while Bill Ackman is mentioned regarding an activist investor value opportunity.
- Bill Ackman leads the hedge fund Pershing Square Capital Management.
- Bill Ackman compares the stalled California High-Speed Rail Project to the success of SpaceX and other private ventures.
- Bill Ackman praised President Trump's administration for managing the Iran conflict settlement as Iran leverages energy flows through the Strait of Hormuz.
- Prominent political figures, including Bernie Sanders, discuss the economic risks associated with taxation, such as expropriation of private property and company exodus.
- Major value investor Bill Ackman is reportedly selling his stake in Alphabet Inc., while the company continues to expand its AI and cloud services.
- Pershing Square made a big buy involving SpaceX and Microsoft on June 16th, led by Bill Ackman.
- The Israel Innovation Authority reported on the growth of Israel's high-tech sector, noting Tel Aviv's global ranking.
- Bill Ackman threw weight behind Elon Musk after the successful SpaceX IPO, while Bernie Sanders commented on Musk's resulting wealth.
- Bill Ackman's Pershing Square increased its stake in Howard Hughes and holds a large stake in Brookfield Corporation.
- Bill Ackman's portfolio includes Brookfield Corporation, which benefits from Trump-era tariffs and onshoring trends.
- Trump-era tariffs continue to benefit AI stocks, with new reports detailing specific investor holdings and market mentions.
- Bill Ackman's Pershing Square increased its ownership stake in Hertz Global Holdings, citing benefits from Trump tariffs and onshoring.
- Bill Ackman stated that he views Uber Technologies stock as being undervalued.
- Bill Ackman purchased shares of SEG and included the company in his Top 10 Stock Picks.
- Berkshire Hathaway owns Duracell, while Bill Ackman serves as Executive Chairman of HHH, with a shareholder meeting scheduled in Manhattan.
- Bill Ackman initiated a new investment position in Amazon stock in August 2025.
- Bill Ackman's Pershing Square, alongside Renaissance Capital, announced a major fundraise, describing the deal as a closed-end fund IPO.