Bill Ackman.
American billionaire hedge fund manager (born 1966)
- Reports this week
- 5
- Active events
- 4
- Connections
- 87
What's happening
Active this week
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Bill Ackman funded a prize through his Carob Trust.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 support2 reports
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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 supported6 reports
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Bill Ackman publicly accused Herbalife of operating as a pyramid scheme.Some support1 report
Earlier this month
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Bill Ackman's Pershing Square increased its stake in Howard Hughes and holds a large stake in Brookfield Corporation.Well supported10 reports
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Bill Ackman expressed the belief that the Federal Reserve's recent rate hikes might be a mistake.Some support3 reports
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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
One to three months ago
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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
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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 support2 reports
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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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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 supported9 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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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
Gone quiet
No new reports in 90+ days-
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
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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 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-
Pershing Square StructuralPershing Square and Vinci Compass Investments Ltd. were identified as finance companies being compared.Moves Bill Ackman
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Google StructuralGoogle provided funding for a Virtual Power Plant (VPP) within the PJM market.Moves Bill Ackman
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Mastercard TransactionalAnnouncements made on July 11, 2025, included details about Chainlink's updates, a partnership involving Mastercard, Techno's new POVA series, and Bolt/Palantir's Checkout 2.0, all presented at InfoComm 2025.Moves Bill Ackman
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HHH StructuralHHH is strategically modeling its operations after Berkshire Hathaway and is transforming Vantage Group into an insurance holding company.Moves Bill Ackman
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Warren Buffett OperationalScott Kirby aligns with Warren Buffett on tax policy and supports a wealth tax similar to Bill Gates' views.Moves Bill Ackman
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Howard Hughes StructuralHoward Hughes provided a permanent suite to servicemen at the St. Regis Washington, D.C., a hotel initially named Carlton.Moves Bill Ackman
Connections
The 40 strongest of 87, 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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Amazon Structural
Bill Ackman and his firm maintain a significant, actively managed financial investment stake in Amazon.
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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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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 and his fund have made and disclosed equity investments in Visa Inc.
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Uber Structural
Bill Ackman's fund holds a significant, ongoing ownership stake in Uber following a major investment.
Show all 40 connections
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Howard Hughes Structural
Bill Ackman holds the formal role of Executive Chairman of Howard Hughes' business entity.
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Alcon Structural
Bill Ackman holds Alcon in his investment portfolio, tracking its performance and growth potential.
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Nvidia Structural
Bill Ackman holds an investment position in Nvidia, linking his financial interests to the company's performance.
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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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Meta Transactional
Bill Ackman and his fund are actively investing in and increasing their stake in Meta Platforms.
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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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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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Canadian Pacific Railway Transactional
Bill Ackman's investment vehicle, Pershing Square, acquired a stake in Canadian Pacific Railway.
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Herbalife Transactional
Bill Ackman held a sizeable short position in Herbalife and publicly accused the company of operating as a pyramid scheme.
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UMG Transactional
a deal or exchange
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Intercontinental Exchange Transactional
Bill Ackman has made a current investment in the equity of Intercontinental Exchange.
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Berkshire Hathaway Operational
Bill Ackman is observed attempting to emulate and copy the investment strategies and success model of Berkshire Hathaway.
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Donald Trump Operational
Ackman maintains a dynamic relationship with Trump, oscillating between public support and critical oversight regarding policy and conduct.
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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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Universal Music Group Transactional
Ackman made a takeover bid for UMG, which the company subsequently rejected.
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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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City of New York Operational
Bill Ackman actively criticizes and financially opposes the policies and administration of the City of New York.
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Warren Buffett Operational
They are prominent fund managers who compete for capital, with Ackman frequently emulating Buffett's investment philosophy.
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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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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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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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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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Harvard University Transactional
Bill Ackman provided funding through the Carob Trust prize associated with Harvard University.
History
Events by the month they beganOctober 2026
2 eventsSeptember 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- Visa Inc. announced several new partnerships, including with Solana and Circle, and Kraken launched a debit card on its network.
- 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.
- 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.
Show 2 earlier months
July 2026
8 events- 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.
- Investors like Bill Ackman, Elon Musk, and Warren Buffett are noted for holding significant concentrated stakes in big tech companies.
- 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.
June 2026
19 events- Bill Ackman's Pershing Square increased its stake in Howard Hughes and holds a large stake in Brookfield Corporation.
- 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 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.