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Bill Ackman
American billionaire hedge fund manager (born 1966)
New YorkFinanceGiving Pledge
C
31
Giving Score
uses a net worth as of 2025
~$9.1B
Est. Net Worth (as of 2025)
Source: Wikidata — retrieved 10/11/2026 (wikidata)Dispute
Source: Wikidata — retrieved 10/11/2026 (wikidata)Dispute
Profile Summary
A net worth stated in this summary may be out of date.
Bill Ackman is an American billionaire hedge fund manager, born in 1966, associated with the finance industry and New York. His estimated net worth is ~$9.1B. Wikidata
Business & SEC Activity
Ackman is described as a hedge fund manager. SEC EDGAR search results list Pershing Square Capital Management, L.P. among the companies returned, alongside Automatic Data Processing, Canadian Pacific Railway, Herbalife, and Carl Icahn. Wikidata SEC EDGAR
Philanthropy
The Ackman Family Foundation's 2015 tax filing reported $10,029 in grants paid, $1,663 in total assets, $114 in revenue, and $10,029 in expenses. ProPublica 990 News reports in August 2026 said Ackman and his wife, Neri Oxman, donated or pledged approximately $400 million in Pershing Square shares for a brain research and rehabilitation institute in New York. NewsAPI
Political Activity
Federal Election Commission records show 9 contributions totaling $12,215 from June 8, 2006, through May 5, 2020. The party breakdown was $12,200 to Democratic recipients and $15 to recipients with an unknown party designation; listed recipients include Cory Booker for Senate, Cory 2020, Mark Kelly for Senate, McCaskill for Missouri, and ActBlue. FEC
These donations are matched to this person by name only, so some may belong to a different person with the same name: FEC filings can include a donor's employer and city, but our matching does not check them against what we know about this person.
In the News
August 2026 coverage focused on reports that Ackman and Oxman were establishing a New York brain research and rehabilitation institute through Pershing Square shares valued at about $400 million. Other coverage reported that Pershing Square had disclosed a new Netflix stake. NewsAPI
U.S. Presence
otherU.S. economic presence
Philanthropy
Foundations are matched to a person by name, not by trustee records — so a same-surname family foundation can land here in error. Every entity below links to its full IRS filing; if one doesn’t belong, tell us at hello@skylarkcreations.com and we’ll pull it.
$2KFoundation Assets
$10KGrants Paid
1Foundation
Ackman Family Foundation
Assets: $2KRevenue: $114Grants: $10KTax Year: 2015
Mission, purpose & full 990 filings → ProPublica Nonprofit ExplorerPolitical Contributions
$12KTotal Contributed
9Contributions
2006–2020Date Range
By Party
Every party on file is listed here. The bars are rounded for display; unrounded they total exactly $12,215.
Top Recipients
CORY BOOKER FOR SENATE$6K
CORY 2020$3K
MARK KELLY FOR SENATE$3K
MCCASKILL FOR MISSOURI$1K
ACTBLUE$15
Matched by name only. These donations are matched to this person by name only, so some may belong to a different person with the same name: FEC filings can include a donor's employer and city, but our matching does not check them against what we know about this person.
SEC Filings
1,000Total Filings
832Insider Filings
677EDGAR Mentions
Associated Companies
Entities appearing alongside this person in SEC full-text search — an association, not necessarily ownership or control. Follow each link to the primary SEC record to judge for yourself.
Recent Insider Filings
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2/9/2026News Coverage
Coverage window: 2026-08-20 to 2026-08-22 · retrieved 8/22/2026
Score Breakdown
C
31
Giving score
uses a net worth as of 2025
The giving score is a weighted average of 2 components. The formula is open and versioned — the weight percentages below show how much each component contributes to the final score.
Philanthropy65% weight
Evidenced charitable giving — built on what they actually give each year, not parked assets. Dominated by generosity (annual giving relative to net worth — the share of your fortune you give), plus the absolute scale of that giving, plus a small nudge for signing the Giving Pledge (a commitment, not a realized action).
Data: ProPublica 990 charitable disbursements, net worth, The Giving Pledge registry
Data coverage35% weight
How much sourced public record we hold about this person — net worth, SEC filings, foundation 990s, news coverage, Wikidata. It measures our coverage, not how open the person is. Each further kind of record scores higher, up to eight. Political donation records matched to a person by name alone are not counted: they may belong to someone else with the same name. From October 7, 2026, our own AI-written summary and the profile photo are not counted either — neither is a public record — so grades that leaned on them moved down that day.
Data: SEC EDGAR, ProPublica 990s, GDELT / NewsAPI, Wikidata
Formula (v2): Giving score = 65% x Philanthropy + 35% x Data coverage
Scored on 10/16/2026 on a 0–100 scale. The score uses only the signals we have populated data for. Goal Impact, Controversy, and Community Approval are deferred until that data exists — Phase 1 goal adoption, controversy detection, and community votes respectively.
All data is sourced from public records. Each section links to its original source. View on Wikidata