Warren Buffett

Warren Buffett is an American investor, entrepreneur and businessman, according to Wikidata, with an estimated net worth of ~$82.5B. Wikidata Berkshire Hathaway identifies him as its chairman; the company owns businesses in insurance, rail transportation, energy, manufacturing and consumer products, and holds public-company stocks. RTB

Business & SEC Activity

Berkshire Hathaway identifies Buffett as chairman of the holding company. RTB SEC EDGAR lists 430 insider filings under Buffett’s name; Form 4 filings report changes in an insider’s ownership of company securities, while a Form 3 is an initial insider-ownership report. SEC EDGAR Recent filings include Form 4 reports dated May 26, May 20 and May 5, 2026, and a Form 3 dated February 17, 2026. SEC EDGAR

Philanthropy

CNBC reported that Buffett has given away more than $60B in Berkshire stock since 2006, mostly through the Gates Foundation and family foundations; it reported annual giving of $3B. RTB The Giving Pledge identifies Buffett as a signatory. RTB ProPublica’s 2023 Form 990 record for the Buffett Foundation shows $2,276 in grants paid, $1,185 in assets, $1 in revenue and $2,276 in expenses; its record for Buffett Fam Foundation shows $0 in grants paid and $0 in assets. ProPublica 990

Political Activity

FEC filings show at least 142 federal contributions. FEC The most recent 100 contributions on file, covering July 27, 2004, through November 1, 2019, totaled $991,835.64: $815,116.11 to Democratic recipients, $167,619.53 to recipients with an unknown party designation, and $9,100 to Republican recipients. FEC The largest named recipients in that sample were the DCCC ($315,800), DNC Services Corporation/Democratic National Committee ($154,100), DSCC ($134,600), DNC Services Corp./Dem. Nat’l Committee ($78,916.11), and Obama Victory Fund 2012 ($65,800). 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

THISDAYLIVE reported that Buffett converted 1,800 Berkshire Hathaway Class A shares into 2.7 million Class B shares and donated approximately $1.35B to four family foundations at the end of 2025. NewsAPI