Heather Seidel

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Heather Seidel
Occupation Chief Counsel for the Division of Trading and Markets
Employer U.S. Securities and Exchange Commission
Location Washington, DC
Website www.sec.gov

Heather Seidel is chief counsel for the U.S. Securities and Exchange Commission’s division of trading and markets. She was appointed to that position in February of 2015. The division’s office of chief counsel provides legal and policy advice to the commission on matters affecting broker-dealers and securities markets.[1]

Seidel was previously an associate director in the division. Together with David Shillman, she directed the division's office of market supervision, which has responsibility for matters including oversight of the stock and option markets.[2][3][4]

She has been involved with the SEC's rule making for securities-based swaps concerning registration and regulations.[5]


Seidel served as associate director in the division of trading and markets beginning in October 2010. Before assuming that position, she worked in the division as an assistant director, senior special counsel, and attorney fellow.

Before joining the SEC, she worked as an associate and vice president in the law division of Morgan Stanley from 2001 to 2003, and as an associate at the law firm of Wilmer, Hale, and Dorr (formerly Wilmer, Cutler and Pickering) from 1999 to 2001.

In 2006, Seidel received the SEC's Jay Manning Award, which is given annually to an employee in the division of trading and markets who has demonstrated an outstanding commitment to excellence in preserving fair and honest markets.


Seidel earned her Juris Doctor from Georgetown University Law Center in 1995 and her bachelor of science from the University of Connecticut in 1992.


  1. Heather Seidel Named Chief Counsel in SEC’s Division of Trading and Markets. SEC.gov.
  2. Heather Seidel Named Associate Director in Division of Trading and Markets. U.S. Securities Exchange Commission.
  3. SEC strengthens market supervision team. Trade The News.
  4. Seidel to lead SEC’s option market supervision. FOW.
  5. SEC Holds Open Meeting on Security-Based SEF Registration and Regulation. CapitolInterest.com.