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SEC Insider//CIK 0000315090

BUFFETT WARREN E

CIK 000031509030 companiesOMAHA, NE

Transactions

50

Companies

30

Filings

8

CIK

0000315090

Research Summary

AI-generated from SEC filings & financial news

Updated

Warren E. Buffett

Warren E. Buffett is the longtime chairman and chief executive of Berkshire Hathaway, a diversified holding company that acquires and manages operating businesses and public equity stakes. He appears regularly as a reporting person on SEC Section 16 filings and is associated with Berkshire’s large, disclosed holdings in major public companies.[1]

Career Background

  • Chair and Chief Executive Officer of Berkshire Hathaway, leading the company’s capital allocation and acquisition activities.[1]
  • Served on public-company boards, including a past directorship at The Gillette Company, and has been an influential long‑term investor in major U.S. corporations.[2]
  • Frequently appears as a reporting person on SEC filings for Berkshire-related holdings and transactions, reflecting his role in the company’s investment activities.[3]
  • Education: B.S. in Business Administration from the University of Nebraska and M.S. in Economics from Columbia Business School.[4]

Current Positions

  • Chairman and Chief Executive Officer — Berkshire Hathaway (BRK.A / BRK.B), principal executive overseeing the conglomerate’s subsidiaries and investment portfolio.[1]
  • Reported principal through Berkshire Hathaway of substantial, disclosed equity stakes in major public companies (examples include The Coca‑Cola Company (KO), Bank of America (BAC) and HP Inc. (HPQ)), as reflected in company proxy and SEC filings.[1]

SEC Filing Context

  • Identified as a reporting person on many Section 16 (Form 3/4/5) filings that document equity holdings and transactions tied to Berkshire Hathaway and its subsidiaries.[3]
  • Certain Form 4 and proxy disclosures record his association with board service and with Berkshire’s significant beneficial ownership positions in public companies (filings distinguish direct personal holdings from shares owned by Berkshire entities).[5]

Recent Transactions

50 trades
  • Conversion

    Class B Common Stock

    2025-11-10+2,700,0002,701,114 total
  • Conversion

    Class A Common Stock

    2025-11-101,800196,317 total
  • Gift

    Class B Common Stock

    2025-11-10400,000801,114 total
  • Gift

    Class B Common Stock

    2025-11-10400,000401,114 total
  • Gift

    Class B Common Stock

    2025-11-101,500,0001,201,114 total
  • Gift

    Class B Common Stock

    2025-11-10400,0001,114 total
  • Sale

    Common Stock

    2025-10-27$135.36/sh401,51431,759,065 total
  • Purchase

    Common Stock

    2025-08-04$21.63/sh+1,037,199124,807,117 total
  • Purchase

    Common Stock

    2025-08-01$21.02/sh+1,930,000123,769,918 total
  • Purchase

    Common Stock

    2025-07-31$21.04/sh+1,977,837121,754,529 total
  • Purchase

    Common Stock

    2025-07-31$21.43/sh+85,389121,839,918 total
  • Sale

    Common Stock

    2025-07-31$140.61/sh1,635,96232,160,579 total
  • Sale

    Common Stock

    2025-07-30$282.15/sh4,300,0008,989,880 total
  • Gift

    Class B Common Stock

    2025-07-14301,114 total
  • Gift

    Class B Common Stock

    2025-06-30943,3841,982,242 total
  • Gift

    Class B Common Stock

    2025-06-30660,3661,321,876 total
  • Gift

    Class B Common Stock

    2025-06-309,433,8392,925,626 total
  • Conversion

    Class A Common Stock

    2025-06-278,239198,117 total
  • Conversion

    Class B Common Stock

    2025-06-27+12,358,50012,359,465 total
  • Sale

    Common Stock

    2025-05-27$140.18/sh11,97833,796,541 total
  • Sale

    Common Stock

    2025-05-27$139.56/sh71,96633,808,519 total
  • Sale

    Common Stock

    2025-05-27$138.59/sh19,33033,880,485 total
  • Sale

    Common Stock

    2025-05-23$137.28/sh27,17233,936,709 total
  • Sale

    Common Stock

    2025-05-23$138.60/sh80033,899,815 total
  • Sale

    Common Stock

    2025-05-23$138.19/sh36,09433,900,615 total
  • Sale

    Common Stock

    2025-05-22$139.88/sh1,25633,963,881 total
  • Sale

    Common Stock

    2025-05-22$138.94/sh31,40433,965,137 total
  • Gift

    Class B Common Stock

    2025-05-1422965 total
  • Conversion

    Class A Common Stock

    2025-05-131206,356 total
  • Conversion

    Class B Common Stock

    2025-05-13+1,5002,291 total
  • Gift

    Class B Common Stock

    2025-05-131,304987 total
  • Sale

    Common Stock

    2025-05-08$147.11/sh1,145,93833,996,541 total
  • Gift

    Class B

    2025-04-09160791 total
  • Gift

    Class A Common Stock

    2025-04-072206,357 total
  • Sale

    Common Stock

    2025-02-19$154.47/sh54,97935,151,956 total
  • Sale

    Common Stock

    2025-02-19$153.60/sh65,48235,206,935 total
  • Sale

    Common Stock

    2025-02-19$155.25/sh9,47735,142,479 total
  • Sale

    Common Stock

    2025-02-18$153.69/sh39,53135,352,948 total
  • Sale

    Common Stock

    2025-02-18$155.41/sh28,51535,274,417 total
  • Sale

    Common Stock

    2025-02-18$154.72/sh50,01635,302,932 total
  • Sale

    Common Stock

    2025-02-18$156.11/sh20035,274,217 total
  • Sale

    Common Stock

    2025-02-18$158.01/sh1,80035,272,417 total
  • Sale

    Common Stock

    2025-02-14$153.66/sh77,66535,715,818 total
  • Sale

    Common Stock

    2025-02-14$158.41/sh27,90135,393,779 total
  • Sale

    Common Stock

    2025-02-14$156.68/sh66,20835,487,163 total
  • Sale

    Common Stock

    2025-02-14$150.78/sh34,13235,858,347 total
  • Sale

    Common Stock

    2025-02-14$154.70/sh91,98735,623,831 total
  • Sale

    Common Stock

    2025-02-14$159.16/sh1,30035,392,479 total
  • Sale

    Common Stock

    2025-02-14$151.60/sh30,07535,828,272 total
  • Sale

    Common Stock

    2025-02-14$155.54/sh70,46035,553,371 total