Team Member

Biography

Sarah G. ten Siethoff, Deputy Director

Sarah G. ten Siethoff is the Deputy Director of the Securities and Exchange Commission’s Division of Investment Management. She is also the Associate Director for the Rulemaking Office where she leads the development of policy and rulemaking relating to investment advisers and investment companies.

Prior to joining the SEC, Ms. ten Siethoff was an associate with Cleary Gottlieb Steen & Hamilton LLP in their New York and Washington, DC offices.

Ms. ten Siethoff received her J.D. from Yale Law School, her M.A. in International Relations from Yale University, and her B.A. from the University of Virginia.

Brent J. Fields, Associate Director of the Disclosure Review and Accounting Office

Brent J. Fields is the Associate Director of the Disclosure Review and Accounting Office of the Securities and Exchange Commission’s Division of Investment Management. He has served in his role as Associate Director since March 2019 to the present. Prior to that, Mr. Fields was appointed as the Commission’s Secretary, in the Office of the Secretary, where he served from September 2014 to March 2019.

Mr. Fields joined the SEC’s Division of Enforcement in April 1996. The following year, he moved to the SEC’s Division of Investment Management, where he served in various leadership roles, including nine years as an Assistant Director leading an office that reviews the disclosures of investment companies and as the Assistant Director leading a disclosure rulemaking office. From 2002 to 2004, he served as a counsel to then-SEC Commissioner Paul S. Atkins. He worked as an associate at the law firm of Fulbright & Jaworski L.L.P. in Washington, D.C. prior to joining the SEC staff.

Mr. Fields received his law degree from University of Georgia School of Law and his bachelor’s degree in accounting from Virginia Tech.

Tim Husson, Associate Director of the Analytics Office

Tim Husson is the Associate Director of the Analytics Office of the Securities and Exchange Commission’s Division of Investment Management. In this role, he oversees the data analysis and examination projects in the Division, as well as providing guidance on complex financial and quantitative topics. He joined the SEC in 2014 as a Quantitative Research Analyst.

Before joining the SEC, he was a Senior Financial Economist at SLCG, an economic consulting firm in Fairfax, Virginia, where he provided quantitative research and analysis in support of expert testimony and regulatory proceedings. He has coauthored numerous research papers on exotic financial products, financial markets, and complex securities.

Dr. Husson holds a BA and Ph.D in Computational Neuroscience from the University of Chicago

Aimée Primeaux, Managing Executive

Aimée Primeaux Aimée Primeaux is the Managing Executive of the Securities and Exchange Commission’s Division of Investment Management. In this role she oversees the operations of the division, including human resources, budget, contracting, technology, process improvement, and business support.  She has served in this role since March 2018.

Ms. Primeaux came to the SEC in 2012 as Branch Chief in the Office of Records Management Services, overseeing policy, training, and compliance. She subsequently became Business Manager in the Office of Support Operations overseeing business operations including managing budgetary resources for SEC’s building operations and physical security.

Prior to joining the SEC, Ms. Primeaux worked as a Preservation Program Officer at the National Archives and Records Administration and worked at several non-profit organizations focusing on preservation of history and archival collections.

Ms. Primeaux received her Master of Arts in History and Master of Library and Information Science from Simmons University and her bachelor’s degree from Millsaps College.

Thoreau Bartmann, Co-Chief Counsel

Thoreau Bartmann is Co-Chief Counsel of the Securities and Exchange Commission’s Division of Investment Management. In this role, he oversees the Division’s legal guidance regarding investment companies and investment advisers. He has served in this role since October 2022.

Mr. Bartmann joined the Commission in 2005, developing rulemaking policy in a variety of capacities, before taking on a new role as an Assistant Director in the Chief Counsel’s office in 2021. Prior to joining the SEC, Mr. Bartmann worked as an associate at the law firm Fried, Frank, Harris, Shriver, and Jacobson.

Mr. Bartmann received his J.D. from the University of North Carolina Chapel Hill and his B.A. from the University of Alabama, Birmingham.

Kaitlin C. Bottock, Co-Chief Counsel

Kaitlin C. Bottock is Co-Chief Counsel of the Securities and Exchange Commission’s Division of Investment Management. In this role, she oversees the Division’s legal guidance regarding investment companies and investment advisers. She has served in this role since October 2022.

Ms. Bottock came to the SEC in 2014 as a staff attorney in the Chief Counsel’s Office. Prior to joining the SEC, Ms. Bottock was an associate with Dechert LLP in its Washington, DC office.

Ms. Bottock received her J.D. from the University of Virginia School of Law and her B.A. with high honors from the University of Virginia.