People

Sig Segalas

Sig Segalas

Formal First Name
Spiros (Sig)

Spiros Segalas is the President and Chief Investment Officer of Jennison Associates. As one of the founders of Jennison, he has played an integral role in ranking the firm among leading institutional investment managers in the United States. Aside from managing institutional portfolios, Segalas also manages the Harbor Capital Appreciation Fund. In addition, Segalas co-manages the Prudential Jennison Blend Fund, Prudential Jennison Growth Fund, Prudential Jennison 20/20 Focus Fund, and the Prudential Jennison Select Growth Fund.

Professional Experience


Academic History

  • After earning his bachelor’s degree, Segalas served as an officer in the U.S. Navy. 
  • He spent some time in the shipping and construction industries before joining Bankers Trust.
  • He began his investment career as a research analyst with Bankers Trust Company in 1960, where he was responsible for technology, aerospace, and conglomerate securities.