Theo Jeffreys



(236) 317-6882

(604) 674-9245


(416) 361-3200

Theo focuses his practice on corporate and securities law, advising clients on a range of public and private company transactions, including mergers and acquisitions, public offerings, private financings, and corporate reorganizations. He also advises on securities regulatory compliance, stock exchange matters, continuous disclosure obligations, and general corporate law.

Before joining Cozen O'Connor, Theo worked for five years in one of Canada's leading national law firms, working in the firm's Vancouver, Toronto, and London offices. As a securities associate, he gained valuable experience drafting, negotiating, and reviewing a broad range of transaction documents, managing due diligence and disclosures, advising public issuer clients on compliance, and preparing and reviewing various continuous disclosure documents.

Theo earned his B.A., with first-class honors, from Swansea University and his J.D. from the Peter A. Allard School of Law at the University of British Columbia.



BCSC Guidance on Joint Actors in Proxy Contests and Early Warning Disclosure Requirements [Alert]

February 07, 2024

Lucy Schilling, Jeremy Gellis, Theo Jeffreys, and Dilina Lallani discuss the BCSC's decision in NorthWest Copper Corp. clarifying when parties are considered to be “acting jointly or in concert” and the appropriate remedies for failing to meet the early warning requirements in the context of a proxy contest.


  • University of British Columbia, J.D., 2018
  • Swansea University, B.A., with honors, 2013
  • British Columbia
  • Ontario

Law Society of British Columbia

Law Society of Ontario