Sergey Brin

Sergey Brin is an American billionaire businessman (born 1973) based in California, with an estimated net worth of ~$49.8B. SEC filings connect him to Alphabet Inc. (GOOG/GOOGL) and Google Inc., and show extensive insider-reporting activity under his personal CIK 0001295032. Wikidata SEC EDGAR

Business & SEC Activity

SEC EDGAR lists 555 total filings associated with Sergey Brin, including 554 insider filings, which are typically disclosures by company insiders about their holdings and transactions. His recent filings include multiple Form 4 reports (used to disclose insider trades and certain equity changes) dated 2026-02-25, 2025-11-28, 2025-05-21, 2024-11-26, and 2024-06-03, plus SC 13G/A amendments in 2024-02-12 and 2023-02-13 (used to report certain large ownership positions and updates). The company list tied to these filings includes Alphabet Inc., Google Inc., and Rivian Automotive, Inc. (RIVN). SEC EDGAR

Philanthropy

ProPublica-reported 990 data lists the Sergey Brin Family Foundation (San Francisco, CA) with $4,070,439,070 in total assets for tax year 2023 and $0 grants paid, alongside $453,689,442 in total revenue and $451,687,482 in total expenses. It also lists The Brin Wojcicki Foundation (San Francisco, CA) with $868,443,799 in total assets for tax year 2015 and $0 grants paid, with $193,831,866 in total revenue and $327,630,415 in total expenses. Across the listed foundations, total foundation assets sum to $4,938,882,869 and total grants paid are reported as $0. ProPublica 990

Political Activity

FEC data shows 13 contributions totaling $1,329,600 from 2006-10-12 to 2025-05-12. The largest recipients listed are My Ride to Vote ($800,000) and the Republican National Committee ($443,000), followed by Obama Victory Fund 2012 ($35,800) and the DNC Services Corporation/Democratic National Committee ($30,800). The party breakdown reported is $35,800 to Democrats, $443,000 to Republicans, and $850,800 to PAC/Other. FEC

In the News

Recent headlines mentioning Brin include a Fox Business article about Mark Zuckerberg and Google's Brin closing on large Miami estates, and a San Francisco Standard piece about California's 2026 billionaire tax debate. Other articles in the feed discuss billionaire political donations in the 2024 federal elections and broader coverage of tech billionaires. NewsAPI