1. Home
  2. Our Firm
  3. News
  4. Guggenheim Securities Hires Onnie Mayshak to Expand Boston Office

Our Firm

January 13, 2015

Guggenheim Securities Hires Onnie Mayshak to Expand Boston Office

NEW YORK – Guggenheim Securities, the investment banking and capital markets division of Guggenheim Partners, today announced that W. Onnie Mayshak has joined its Boston office as a director in equity sales.

“As we grow our equity research platform and origination product offering, our goal is to expand the breadth and depth of our distribution capabilities appropriately to institutional clients,” said Matthew Johnson, Head of Equities at Guggenheim Securities. “Onnie’s experience and expertise make him uniquely qualified to help us bring a differentiated outcome to our Boston clients.”

Mr. Mayshak’s hiring is the latest move in Guggenheim’s investment in building out its equities platform and institutional client coverage. Mr. Mayshak joins Guggenheim from Ned Davis Research, where he served as director of the institutional sales group, working with asset managers throughout Boston, Philadelphia, and Baltimore. Prior to that, he spent several years at Susquehanna International Group.

He graduated with a B.A. from Harvard University.


About Guggenheim Partners

Guggenheim Partners is a global investment and advisory firm with more than $220 billion in assets under management. Across our three primary businesses of investment management, investment banking, and insurance services, we have a track record of delivering results through innovative solutions. With more than 2,500 professionals based in more than 25 offices around the world, our commitment is to advance the strategic interests of our clients and to deliver long-term results with excellence and integrity.



May 16, 2018

Guggenheim 2Q Fixed-Income Outlook: Preparing for Long-Awaited Choppier Markets

NEW YORK, NY –  Guggenheim Investments, the global asset management and investment advisory business of Guggenheim Partners, today provided its Second Quarter 2018 Fixed-Income Outlook, “Positioned for Choppier Waters.”

Read More

May 11, 2018

Guggenheim Partners Impact Report

The second edition of the impact report highlights our accomplishments in the areas of social impact and sustainable business practices.

Read Report

May 03, 2018

Guggenheim Securities Hires Mandar Vadhavkar to Expand Healthcare Investment Banking Group

Guggenheim Securities, the investment banking and capital markets division of Guggenheim Partners, announced today that Mandar Vadhavkar will join the firm as a Senior Managing Director in the firm’s Healthcare investment banking group, with a focus on advising companies in the healthcare services sector.

Read More



© 2018 Guggenheim Partners, LLC. All rights reserved. Guggenheim, Guggenheim Partners and Innovative Solutions. Enduring Values. are registered trademarks of Guggenheim Capital, LLC.