Our Experts



Founded in 1964, Continental Stock Transfer & Trust is the largest, oldest, privately owned US transfer agent. As proud as we are of our history, we are even more proud that we satisfy our customers repeatedly, no matter how challenging their needs may be. We are still growing, and our focus on our specific clientele niche has been unwavering since our founding.

Our professionals are seasoned and respond swiftly to execute flawlessly on our suite of services. Our top-level managers have an average of 32 years of experience in the transfer agent industry and are available to assist you 24 hours a day, seven days a week.

Steven Nelson

President and Chairman

With more than 35 years of industry experience, Steven is heavily involved in Continental’s day-to-day administration and client initiatives. An attorney with a background in public and private practice, he is a member of the New York state and Federal bars. He has practiced at Simpson Thacher & Bartlett and as a Federal prosecutor.

Steven is a member of the Executive Committee of the Securities Transfer Association Board and chairs its Legal Committee, which is active in promoting essential changes within the industry. A magna cum laude graduate of Brandeis University, he received Law Review honors from NYU Law School.

Michael Mullings, MS

Chief Compliance Officer & Corporate Secretary

Michael has been with Continental for over 30 years and deals primarily with the clients’ executive officers and directors and their securities counsel. He interprets SEC rules to guide clients and is committed to finding solutions to complex problems.

Michael also serves as a Senior Relationship Manager for some of Continental’s most sensitive accounts. He is responsible for all aspects of:

  • legally restricted transfers,
  • original issuances stemming from initial, secondary, and follow-on public offerings,
  • private placements,
  • warrant exercises, and
  • employee benefit plans.

He is also responsible for reviewing all legal agreements in which Continental is a party. Michael oversees and manages the implementation of procedures to ensure that Continental complies with all regulatory requirements.

He is a member of the Securities Transfer Association and the Shareholder Services Association.

John Ulla

Chief Operating Officer

John is a well-respected industry leader with more than 30 years of experience and has a wide range of industry knowledge. He is well versed in stock transfer and joined Continental in 2013 to assume responsibilities for Specialized Services, including dividends, abandoned property reporting, account maintenance, check reconciliation, IRS tax reporting, research, and dividend reinvestment.

John’s experience working for some of the most significant transfer agents in the world has allowed him to accumulate a broad range of managerial, organizational, and administrative skills. John also has a vast knowledge of all operational and regulatory issues handled by transfer agents.

John is a former chair of the Securities Transfer Association’s Operations Committee and has participated in several industry-wide boards.

Donald F. Gress

Vice President and Chief Information Security Officer

Don monitors Continental’s cyber security policy execution, and all Internet-related procedures. Don chairs our Cyber Security Management & Strategic Planning Committee and creates or organizes online courses for employee training. He is responsible for employee’s proper handling of email, internet decorum, and safeguarding information in our shareholder recordkeeping system.

The US Army drafted Don during the Vietnam Era before he completed his degree from Rutgers University. After his discharge in 1967, he joined Continental as a trainee and messenger. Over the ensuing decades, he accumulated detailed knowledge of operational and regulatory issues. Don also learned all transfer agent functions, audit, and risk-related responsibilities.

While serving as our COO, he was a chairman of the Securities Transfer Association’s Operations Committee for multiple years. Don is currently an active member of several industry-wide organizations and committees.

John Reformato

Vice President – Manager of Plan Services

John manages dividend reinvestment, direct stock purchase, and employee stock purchase plans. He oversees the Call Center and Investor Relations departments. John is known for having strong relationships with clients and strengthening customer relations with shareholders.

John has over 20 years of industry experience. A graduate of Susquehanna University in Selinsgrove, PA, John has a bachelor of arts in Business Administration with a major in Finance.

Narisha Tilhoo

Controller & Vice President of Accounting

Narisha joined Continental in 2016. She plans, organizes, and maintains the accuracy of all financial information recorded and reported. Her primary responsibilities include managing her accounting staff, the month-end close; monthly, quarterly, and annual payroll tax reporting; analytical reviews; and providing financials to management and Human Resources. She supports all aspects of the accounting department to meet deadlines, complete audits, and daily processing.

Before joining Continental, Narisha worked at Hunt Mortgage Group as a Senior Accountant, Sizmek Inc. as an Accounting Manager at Dreier LLP as a Senior Accountant. Narisha earned a bachelor of science in Accounting from Hunter College.

Karri VanDell

Vice President and Director of Sales Strategy & Marketing

Karri is responsible for strategically growing Continental Stock Transfer & Trust by nurturing relationships with new clients and partners interested in tailored, flexible, and thoughtfully designed services. She also spearheads Continental’s brand and marketing initiatives to enhance customer awareness and drive industry engagement.

She has 34 years of service in the industry, notably 23 years with Wells Fargo, where she served as national sales and marketing manager for Shareowner Services.

Before assuming her role in sales, she held management roles in client administration, strategy, stock plan administration, and corporate trust/escrow services. She is a member of the National Association of Stock Plan Professionals, Shareholder Services Association, National Investor Relations Institute, and a former President of Midwest Securities Transfer Association.

Margaret Villani

Vice President and Director of Client Administration

Maggie is the point of contact for the Administration group, ensuring that client needs are met in a timely and professional fashion. With over 30 years of experience in relationship management positions in the securities field – experienced in compliance and securities regulatory issues with a commitment to client education. Her stock transfer experience focuses on client relationships of emerging growth to large public companies. 

Prior to assuming her role at Continental Stock Transfer & Trust, she held several management positions at other financial firms.

Maggie has sat on the Board of the Mid Atlantic Securities chapter, has been a member of several industry organizations, and has authored many industry articles.

Mark Zimkind

Senior Vice President and Director of Shareholder Services

Mark oversees account administration, corporate actions, and stock transfer. He has more than 30 years of diverse industry experience with several prominent bank transfer agents, including Georgeson Shareholder Services. Mark has overseen complicated business combinations in over 350 Special-Purpose Acquisition Company (SPAC) transactions while at Continental, aggregating more than $50 billion. Mark has handled some of the largest and most complex mergers, working on more than 2,000 transactions in his career.

Mark is a member of the Securities Transfer Association and an active member of the Corporate Actions Division, the Securities Industry and Financial Markets Association.

Robert Zubrycki

Vice President and Director of Proxy and Mail Services

Robert manages the day-to-day annual meeting process, mail operations, and scanning/archiving operations. He has nearly 50 years of stock transfer operations experience and has worked at significant transfer agents such as J.P. Morgan and The Bank of New York.

Robert is well-versed in proxy operations, workflow processing, and incoming/outgoing mail operations. Recently, Robert developed and implemented “Certificates on Demand” that allow shareholders to have paper certificates, which have otherwise gone digital. He was directly involved in pioneering many automation processes used in our business today, including electronic voting, workflow imaging, and using barcode technology.