David Sokol: Biography, Career, and Business Insights

David Sokol’s Profile Summary

Company	Teton Capital LLC
Position	Chairman
Source of wealth	Corporate leadership and investment management, particularly from his tenure at MidAmerican Energy, various leadership roles at Berkshire Hathaway
Also known as	Author, philanthropist, energy industry leader.
Age	70
Education	University of Nebraska – Bachelor’s degree, Bellevue University – Doctorate
Citizenship	United States
Residence	Fort Lauderdale, Florida, USA
Family	David Sokol's family includes his wife, Peggy, and their children. Their youngest son, David Jr. (DJ), passed away in 1999 at age 18 after battling Hodgkin’s lymphoma.
Website, Social Media	https://www.tetoncapital.com/

Biography

David L. Sokol is a highly influential businessman and investor, known for his leadership across multiple sectors. Born in 1956 in Omaha, Nebraska, Sokol started his career in the energy industry and eventually became the CEO of MidAmerican Energy Holdings, which he sold to Berkshire Hathaway in 2000. He continued with Berkshire Hathaway until 2011, serving as Chairman and CEO of several subsidiaries, including NetJets and Johns Manville, where he played a key role in their financial turnarounds. Sokol was once considered a potential successor to Warren Buffett, but his unexpected resignation in 2011, amidst controversy surrounding his involvement in Berkshire’s acquisition of Lubrizol, marked a significant point in his career. Since leaving Berkshire, Sokol has focused on managing his family investments through Teton Capital LLC. He has also been actively involved in philanthropic efforts, including his leadership roles in the Horatio Alger Association. Sokol has authored a book titled Pleased But Not Satisfied, where he shares his business philosophy focused on leadership and long-term planning.

How did David Sokol make money?

David Sokol makes money in the following areas:

Corporate leadership and investment management, particularly from his tenure at MidAmerican Energy, various leadership roles at Berkshire Hathaway
What is David Sokol net worth?

As of 2026, David Sokol’s net worth is estimated to be $200M.

What is David Sokol also known as?

David Sokol is not only recognized for his business achievements but also as an author and philanthropist. He published a book titled Pleased But Not Satisfied in 2008, which outlines his business philosophy and leadership principles. Sokol is also deeply involved in philanthropy, particularly through his work with the Horatio Alger Association of Distinguished Americans, where he serves on the board. This organization provides scholarships and mentorship to students overcoming adversity. Additionally, Sokol's long career in the energy sector, especially his leadership at MidAmerican Energy, has further cemented his reputation as an influential figure in the energy industry

Prominent achievements

Sokol has achieved significant recognition throughout his career, including being named CEO of the Year by Financial Times in 1999. He was also awarded the Individual Achievement Award by The Energy Daily. His leadership was instrumental in turning around companies like Johns Manville and NetJets under Berkshire Hathaway. Sokol’s family philanthropic work, particularly in education and cancer support, has also garnered recognition through the D.J.’s Hero Awards.

In May 2024, the Sokol family’s D.J.’s Hero Awards marked its 25th anniversary; the Sokols personally funded 10 of the 16 $12,000 scholarships that year.

What are David Sokol’s key insights?

David Sokol emphasizes long-term planning, operational excellence, and leadership development. His business philosophy, as outlined in his book Pleased But Not Satisfied, focuses on six key operating principles: vision, strategy, leadership development, discipline, respect for employees, and continuous improvement. He believes in maintaining high operational efficiency and empowering future leaders through mentorship.

Personal life

David Sokol and his wife Peggy have faced significant family challenges, most notably the loss of their youngest son, DJ, to Hodgkin's lymphoma. DJ's legacy continues through the family’s philanthropic efforts, including the establishment of the D.J. Sokol Learning for Life Building and various scholarships in his honor. The Sokols have been deeply involved in community work, helping young people overcome adversity. They continue to engage with many of these scholarship recipients through personal connections and mentoring.

Useful insights

Fundamental principles of investing

As someone deeply immersed in the world of finance, I firmly believe that learning the fundamental principles of investing is the cornerstone of financial literacy. The books I recommend here have shaped modern investment strategies, offering timeless wisdom that can benefit both beginners and seasoned investors. These are not just texts, but essential tools to help you navigate the complexities of the financial markets with confidence and insight.

Benjamin Graham - "The Intelligent Investor"
- Summary:
  
  Written by one of the most influential investment thinkers, this book outlines the principles of value investing. Graham emphasizes the importance of analyzing a company’s intrinsic value, long-term investment strategies, and avoiding emotional decisions driven by market fluctuations. The book also discusses defensive investing, focusing on preservation of capital and minimizing risk.
- Why read it:
  
  This is a must-read for anyone looking to understand the core philosophy behind successful long-term investing. Graham’s principles influenced generations of investors, including Warren Buffett, making it an essential guide to navigating stock market risks with a focus on minimizing losses.
Ray Dalio - "Principles"
- Summary:
  
  Ray Dalio, founder of one of the world’s largest hedge funds, shares the life and work principles that led to his immense success. The book covers Dalio’s unique management and investment strategies, focusing on radical transparency, truth-seeking, and the importance of learning from mistakes. It also provides practical insights into organizational behavior and personal growth, making it valuable beyond just investing.
- Why read it:
  
  Dalio's "Principles" is a treasure trove of wisdom for investors and business leaders who wish to improve their decision-making. It’s a guide on how to align personal and professional life through well-defined, actionable rules.