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Founder Profile

Harold Stanley

Last reviewed: October 2026 · By Swet Parvadiya

Who is Harold Stanley?

Harold Stanley is a founder of Morgan Stanley, which was founded in 1935 with Henry S. Morgan.

Company founded
Morgan Stanley
Founded
1935
Co-founders
Henry S. Morgan

Background

Graduated from Yale University and served as a partner at J.P. Morgan & Co.

Founding Story

Harold Stanley (1885-1963) co-founded Morgan Stanley in 1935 alongside Henry S. Morgan. Following the passage of the Glass-Steagall Act, which forced banks to separate commercial and investment banking, Stanley left J.P. Morgan & Co. to establish the new firm purely as an investment bank. He served as the firm's president, rapidly securing massive corporate clients and establishing Morgan Stanley's initial dominance in Wall Street underwriting.

Education: Hotchkiss School.

Stanley was born on October 2, 1885 and died on May 14, 1963. He ran Morgan Stanley for 20 years and left the firm in 1955. Harold Stanley was born in 1885.

Sources

Content is for informational purposes only. Not financial advice. Data sourced from SEC filings, annual reports, and public records. See our full disclaimer and methodology.