Role at Two Sigma Investments
- Title on Schedule A
- Co-Chief Investment Officer
- Control
- Geoffrey Duncombe is not a control person of Two Sigma Investments.
- Ownership
- An individual ownership band is not available in the source record.
- Tenure
- Geoffrey Duncombe has held the filed role since January 2026.
The firm
Form ADV filed 31 March 2026
Career on record
The IAPD individual lookup on 17 October 2026 returned no individual record. This profile uses the firm’s Form ADV officer listing.
Registrations and exams
Individual registration and examination information for Geoffrey Duncombe is unavailable. An officer title or CRD number does not by itself establish current investment adviser representative registration, and no registration or examination counts are inferred.
Officer record
- Full name
- Geoffrey Duncombe
- CRD
- 4439296
- Record basis
- Form ADV officer listing
- Firm bio
- twosigma.com
This directory does not report disciplinary history, for any firm or individual, in either direction. The SEC publishes the complete record, including any disciplinary events, and it is the authoritative place to check one. Check this record on adviserinfo.sec.gov
Background
Two Sigma identifies Geoff Duncombe as Chief Investment Officer of Two Sigma Advisers. Official firm biography/team page
Common questions
Where does Geoffrey Duncombe work?
Geoffrey Duncombe has been Co-Chief Investment Officer of Two Sigma Investments, LP since January 2026.
Leadership at Two Sigma Investments
- Carter LyonsCo-Chief Executive Officer
- Dawn SchoppnerChief Financial Officer
- Timothy ReynoldsChief Operating Officer
- James Hein JR.Chief Compliance Officer
- Steve MetzgerGeneral Counsel
- John OverdeckCo-Chairman, Two Sigma Management, LLC; Executive Manager, Two Sigma Management, LLC
- Seth PlattExecutive Manager, Two Sigma Management, LLC
- Thomas RaffertyTrustee of David M. Siegel Revocable Trust
- Christopher SalesCo-Chief Investment Officer
- David SiegelCo-Chairman, Two Sigma Management, LLC