Mark Bennett O'Brien

Chairman at

O'Brien Greene & Co., Inc.

Finance

Consumer Services

Electronic Technology

Profile

Mark Bennett O'Brien is currently the Chairman at O'Brien Greene & Co., Inc. and the President & General Partner at O'Brien Greene Small-Capitalization Stock Fund LP.
Previously, he worked as a Manager at Textron, Inc., a Principal at Brown Brothers Harriman & Co. (Investment Management), and an Analyst at Ashford Capital Management, Inc. Mr. O'Brien holds a graduate degree from the University of Pennsylvania, an undergraduate degree from Princeton University (conferred in 1973), and an MBA from The Wharton School of the University of Pennsylvania (conferred in 1975).

Mark Bennett O'Brien active positions

Companies	Position	Start
O'Brien Greene & Co., Inc. O'Brien Greene & Co., Inc. Investment ManagersFinance O'Brien Greene aims to preserve and grow the purchasing power of their clients’ capital over a long-time horizon. The firm seeks to find, buy and hold securities in high-quality companies with competitive advantages that allow investor returns to compound over time. They have a preference for owning individual securities directly, rather than through the additional layers of cost and complexity that ETFs and mutual funds involve. Stock portfolios are diversified across industry sectors, actively weighted based upon current market outlook. They aim to keep annual portfolio turnover low, which has historically been a 20% range (buying and selling).	Chairman	01/01/2022
O'Brien Greene Small-Capitalization Stock Fund LP O'Brien Greene Small-Capitalization Stock Fund LP Financial ConglomeratesFinance Provides investment services	President	-

All active positions of Mark Bennett O'Brien

Former positions of Mark Bennett O'Brien

Companies	Position	End
Brown Brothers Harriman & Co. (Investment Management) Brown Brothers Harriman & Co. (Investment Management) Investment ManagersFinance BBH-IM is a long-term manager which aims to preserve and grow their clients’ capital across economic and market cycles. The firm employs a bottom-up, value-based approach to active management. They focus on identifying durable assets, buying them at attractive valuations, and delivering excellent returns without relying on macroeconomic judgements. BBH-IM seeks to invest primarily in cash generative businesses that are major providers of essential products and services.	Portfolio Manager-Equities	31/01/1987
Ashford Capital Management, Inc. Ashford Capital Management, Inc. Investment ManagersFinance Ashford builds small situation portfolios of great companies. The firm believes these companies will have excellent growth opportunities in the long term. They seek opportunities not only for growth, but to invest in durable businesses that demonstrate the strength in management, focus, and industry leadership to be great companies.	Analyst-Equity	-
TEXTRON INC.	Corporate Officer/Principal	-

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Linked companies

Private companies	8
Textron, Inc. Textron, Inc. Aerospace & DefenseElectronic Technology Manufactures and sells aircrafts, aftermarket parts & fuel components for automobiles	Electronic Technology
Brown Brothers Harriman & Co. (Investment Management) Brown Brothers Harriman & Co. (Investment Management) Investment ManagersFinance BBH-IM is a long-term manager which aims to preserve and grow their clients’ capital across economic and market cycles. The firm employs a bottom-up, value-based approach to active management. They focus on identifying durable assets, buying them at attractive valuations, and delivering excellent returns without relying on macroeconomic judgements. BBH-IM seeks to invest primarily in cash generative businesses that are major providers of essential products and services.	Finance
Ashford Capital Management, Inc. Ashford Capital Management, Inc. Investment ManagersFinance Ashford builds small situation portfolios of great companies. The firm believes these companies will have excellent growth opportunities in the long term. They seek opportunities not only for growth, but to invest in durable businesses that demonstrate the strength in management, focus, and industry leadership to be great companies.	Finance
O'Brien Greene Small-Capitalization Stock Fund LP O'Brien Greene Small-Capitalization Stock Fund LP Financial ConglomeratesFinance Provides investment services	Finance
University of Pennsylvania University of Pennsylvania Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
O'Brien Greene & Co., Inc. O'Brien Greene & Co., Inc. Investment ManagersFinance O'Brien Greene aims to preserve and grow the purchasing power of their clients’ capital over a long-time horizon. The firm seeks to find, buy and hold securities in high-quality companies with competitive advantages that allow investor returns to compound over time. They have a preference for owning individual securities directly, rather than through the additional layers of cost and complexity that ETFs and mutual funds involve. Stock portfolios are diversified across industry sectors, actively weighted based upon current market outlook. They aim to keep annual portfolio turnover low, which has historically been a 20% range (buying and selling).	Finance
Princeton University Princeton University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
The Wharton School of the University of Pennsylvania The Wharton School of the University of Pennsylvania Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services