The Partners

Harry W. Segalas Managing Partner & Chief Investment Officer
Harry founded the Firm in 2007. Prior to the formation of the Firm, Harry served as Chairman, CEO, and Chief Investment Officer of W.P. Stewart & Co., Inc., where he worked for 17 years. In addition to overseeing the firm’s U.S. investment team, Harry directly managed $4 billion of institutional and high-net-worth client assets worldwide. From 1987 until joining W.P. Stewart in 1990, he was the Senior Packaged Food Analyst at Shearson Lehman Hutton. Harry began his career in 1982 as a research analyst at L.F. Rothschild, Unterberg & Towbin. He has a B.A. in Political Science and History from Tufts University.
Harry W. Segalas Managing Partner & Chief Investment Officer
David A. Altman, CFA Partner & Director of Research
Prior to joining the Firm in October of 2007, David served as Director of Research and Portfolio Manager at W.P. Stewart & Co., Inc., where he worked for 13 years. In addition to his research responsibility, David managed approximately $1 billion of institutional and high-net-worth client assets. Before joining W.P. Stewart in 1993, David was a Research Analyst at Goldman, Sachs & Co., where he began his investment career in 1981. David was Institutional Investor’s top ranked analyst for Electrical Equipment for six consecutive years. He has a Bachelor of Commerce from McGill University and an M.B.A. from the University of Texas.
David A. Altman, CFA Partner & Director of Research
Gregory A. Nejmeh, CFA Partner & President
Greg spent 23 years of his sell side career at three investment banks, where he specialized in equity research of the homebuilding/building products industries. From 2000 to 2004, Greg was a Managing Director with Deutsche Bank. Prior to that, he was a Principal with Donaldson, Lufkin & Jenrette, beginning in 1996. Greg was a Managing Director at Lehman Brothers, where he began his investment career in 1981. Greg earned repeated top rankings for his analytical work spanning three decades, including multiple number one citations, from Institutional Investor, The Wall Street Journal, Reuters Institutional Survey and The Greenwich Survey. Greg has a B.A. from Franklin & Marshall College.
Gregory A. Nejmeh, CFA Partner & President
Barton H. Buxbaum, CFA Partner & Director of Client Service
Prior to joining the Firm in October of 2007, Bart was Senior Vice President & Product Manager at TimesSquare Capital Management, LLC, a position he held since early 2006. Previously, Bart was President of W.P. Stewart Asset Management (NA), responsible for U.S. client service and marketing. Prior to joining W.P. Stewart in 2001, he was a Senior Portfolio Manager and Director at Citigroup Global Asset Management. Bart began his investment career in the equity research department of T. Rowe Price Associates in 1982. He has a B.S. in Economics from the Wharton School of the University of Pennsylvania and an M.B.A. from the Harvard Business School.
Barton H. Buxbaum, CFA Partner & Director of Client Service

The Professionals

Erica Brailey Vice President, Investments
Prior to joining the firm in September 2017, Erica was an Investment Analyst at Voya Investment Management where she worked for seven years.  She began her career in the Investment Analytics Group at BKF Asset Management (formerly John A. Levin & Co.) and then joined HSBC’s Global Metals & Mining Research Group.  Erica has a B.A. from the University of Michigan and an M.B.A from Columbia Business School.
Erica Brailey Vice President, Investments
Bernadette H. Carlson Administrative Assistant
Bernadette joined the Firm in April 2015 after working for the past 15 years in the hospitality and fitness industry. Most recently, she worked at the Peninsula Hotel Spa in the reception area. Over the course of her career, Bernadette has earned numerous health and fitness industry certifications. She started her career as an elementary school teacher in the Philippines. Bernadette holds a Bachelor of Elementary Education in conjunction with a Math major from Central Luzon State University in the Philippines.
Bernadette H. Carlson Administrative Assistant
Sandra Coleman Senior Vice President, Finance & Human Resources
Sandra joined the Firm in January of 2013. Prior to joining HSMP, Sandra was Controller for W.P. Stewart & Co., an SEC registered investment advisor, from 1994 to 2012, and served as Assistant Controller from 1989 to 1994.  While at W.P. Stewart & Co., she worked closely with the firm’s Chief Financial Officer and Chief Operating Officer on all financial affairs.  Sandra studied accounting at both Queens College and Hunter College and during her long tenure at W.P. Stewart worked alongside several members of the HSMP team.
Sandra Coleman Senior Vice President, Finance & Human Resources
Katelyn R. DaSilva Vice President, Investments
Katelyn is a 2010 graduate of Fordham University and holds a B.S. from Fordham’s College of Business Administration with a dual concentration in finance and marketing as well as a specialization in international business and a minor in economics.  Prior to joining the Firm in November of 2011, Katelyn was the president and founder of Style by Katelyn, LLC, a fashion consulting company. Katelyn is a member of the Consumer Analyst Group of New York (CAGNY) and the National Association of Professional Women (NAPW).
Katelyn R. DaSilva Vice President, Investments
Mark E. Dreifus Senior Vice President, Trading & Operations
Prior to joining the Firm in October of 2007, Mark worked for four years at a boutique accounting firm where his duties included financial statement analysis, corporate tax compilation and estate planning. Mark holds a B.B.A. in Finance from Bernard Baruch College.
Mark E. Dreifus Senior Vice President, Trading & Operations
Robert G. Gebhart, CFA Senior Vice President, Investments
Rob joined the Firm in the fourth quarter of 2011.  From 2002 to 2008, he was an Analyst and Portfolio Manager at W.P. Stewart, working on the investment team alongside two HSMP partners for the majority of this time.  Rob joined Grisanti Brown & Partners in 2008, where as a Partner and Portfolio Manager he jointly managed a concentrated portfolio of U.S. Equities.  He began his analytical career in 1993 with Huntington Bancshares before moving to State Teachers Retirement System of Ohio in 1997 and then to Merrill Lynch in 1999, where he was a Director in U.S. Equity Research. Rob has a B.S. in Finance from Miami University and serves on the investment advisory committee of The Navigators.
Robert G. Gebhart, CFA Senior Vice President, Investments
Charmaine Johnson Vice President, Operations
Prior to joining HSMP in August 2017, Charmaine worked at City National Rochdale as a Performance Reporting Analyst.   From 2014 to 2016, she was a Senior Data Analyst at Albridge, a leading provider of data management and financial technology solutions. Charmaine was Portfolio Administrator and Team Leader at Williams Jones & Associates from 2008 through 2014, which followed a seven-year tenure at Vanguard as a Senior Financial Associate.   She has a B.A. in Finance from Strayer University and serves as an Ambassador for the University.
Charmaine Johnson Vice President, Operations
Cameron J. Livingstone, CFA, CIPM Senior Vice President, Investments & Manager of Operations
Cameron joined the Firm in January of 2008. From 2004 to 2007 he was Senior Vice President of Client Service at W.P. Stewart Asset Management (NA), where he worked closely with the firm’s Chief Investment Officer on many of the firm’s largest institutional and high-net-worth clients. Prior to joining W.P. Stewart, he was Vice President and Portfolio Manager at Morgan Stanley Investment Management, where he managed over $250 million in U.S. equity investments. He began his investment career at Dean Witter in 1989. Cameron holds a B.S. in Business Administration from the University of Delaware and is a member of the CFA Institute and the CIPM Association.
Cameron J. Livingstone, CFA, CIPM Senior Vice President, Investments & Manager of Operations
Maite G. MacDonald Senior Vice President, General Counsel
Maite joined the Firm in the first quarter of 2012.  From 2005 to 2008, Maite was an associate in the capital markets practice at Cleary Gottlieb Steen & Hamilton LLP.  Maite served as a paralegal at the Massachusetts Office of the Attorney General and has worked as an attorney in the USA, Cuba and Venezuela.  Prior to joining HSMP, Maite was an adjunct professor teaching business courses at  the University of Puerto Rico School of Law.  A native Spanish speaker, Maite is a member of the Bar of the State of New York.  She is a graduate of the University of Havana Law School (Licenciado en Derecho, summa cum laude, ’95) and Harvard Law School (LL.M.'05).
Maite G. MacDonald Senior Vice President, General Counsel
Patti L. Norton Senior Vice President, Client Service & Administration
Prior to joining the Firm in May 2015, Patti worked for five years as Vice President at RBC Advisor Services managing Advisor firm and High-Net-Worth client onboarding, documentation and procedures. From 2006 to 2010, Patti was Vice President of J.P. Morgan Securities where her role was Integration Manager for the Broker Dealer and Investment Advisor division. Prior to the JPM acquisition, she served as Managing Director of Bear Stearns supporting onboarding and operational risk controls. Patti began her financial services career at Neuberger and Berman in 1991. She holds a B.A. in Mathematics and Music from Hobart and William Smith Colleges.
Patti L. Norton Senior Vice President, Client Service & Administration
Maggie Nye Roche Senior Vice President, Operations
Maggie joined the firm in 2014. Prior to joining HSMP, she worked in the investment division of Genworth Financial, where she held positions in Trade Operations, Data Management, Client Services, Controllership and Business Continuity. From 1996 to 2007, Maggie was a Trader and an Operations Analyst at Gillespie, Robinson and Grimm, a boutique investment management firm. She has a B.A. in Economics from Colgate University and an M.B.A. in Finance/Investments from Pace University’s Lubin School of Business. Maggie is a certified Associate Business Continuity Professional.
Maggie Nye Roche Senior Vice President, Operations
Brendan H. Segalas Associate, Investments & Client Communications
Brendan studied in the Sociology and Social Policy degree program at Trinity College Dublin in Ireland before completing his B.A. in Sociology at Fordham University in 2013. Brendan joined HSMP in 2014. Previous experience includes an internship at Jennison Associates, as well as hosting an FM radio show in Dublin and interning as an assistant video coordinator for the Fordham University football team.
Brendan H. Segalas Associate, Investments & Client Communications
Ronald R. Staib, CSCP Senior Vice President, Chief Compliance Officer
Prior to joining the Firm in October of 2007, Ron was a Vice President in Operations at Lehman Brothers.  Ron started with Neuberger Berman in 1986 and managed a variety of operational departments during his tenure, including Internal Audit, Credit/Margin, Operations Control and Account Administration.  From 1982 to 1986, Ron worked for ADP in their Brokerage Services Division.  Ron holds a B.A. in Economics from Binghamton University and an M.B.A. in Finance from Adelphi University.  Ron is a graduate of the Securities Industry Institute at the Wharton School and has been designated as a Certified Securities Compliance Professional by the National Society of Compliance Professionals.
Ronald R. Staib, CSCP Senior Vice President, Chief Compliance Officer