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 & Co., Inc. (O'Brien Greene) is an independent, SEC-registered investment adviser headquartered in Media, Pennsylvania. Founded in 1969 by G. Davis Greene, Mark O’Brien took over ownership and management of the firm in 1987 and changed its name Greene Associates to O’Brien Greene & Co, Inc. O'Brien Greene provides investment advice to individuals, families, corporations, pension and profit- sharing plans, trusts, estates and charitable organizations.	Chairman	2021-12-31
O'Brien Greene Small-Capitalization Stock Fund LP O'Brien Greene Small-Capitalization Stock Fund LP Financial ConglomeratesFinance O'Brien Greene Small-Capitalization Stock Fund LP provides investment services. The company is headquartered in Media, PA.	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 Brown Brothers Harriman & Co. (Investment Management) (BBH-IM) is the investment management division of Brown Brothers Harriman & Co., a registered broker/dealer headquartered in New York City. The firm was founded in 1931 and do-business-as Brown Brothers Harriman Mutual Fund Advisory Department. BBH-IM advises or sub-advises Mutual Funds, an ETF, and UCITS Funds.	Portfolio Manager-Equities	1987-01-30
Ashford Capital Management, Inc. Ashford Capital Management, Inc. Investment ManagersFinance Ashford Capital Management, Inc. (Ashford) is an independent, SEC-registered investment advisor headquartered in Wilmington, Delaware. The firm was founded by Theodore H. Ashford in 1979. Ashford offers investment management services to institutions and high net worth individuals that seek to discover small growth companies. The firm offers both separately managed accounts and limited partnership investment opportunities.	Analyst-Equity	-
TEXTRON INC.	Corporate Officer/Principal	-

See the detail of Mark Bennett O'Brien's experience

Training of Mark Bennett O'Brien

University of Pennsylvania	Graduate Degree
Princeton University	Undergraduate Degree
The Wharton School of the University of Pennsylvania	Masters Business Admin

Experiences
Positions held

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Linked companies

Listed companies	1
TEXTRON INC.	Electronic Technology

Private companies	4
Brown Brothers Harriman & Co. (Investment Management) Brown Brothers Harriman & Co. (Investment Management) Investment ManagersFinance Brown Brothers Harriman & Co. (Investment Management) (BBH-IM) is the investment management division of Brown Brothers Harriman & Co., a registered broker/dealer headquartered in New York City. The firm was founded in 1931 and do-business-as Brown Brothers Harriman Mutual Fund Advisory Department. BBH-IM advises or sub-advises Mutual Funds, an ETF, and UCITS Funds.	Finance
Ashford Capital Management, Inc. Ashford Capital Management, Inc. Investment ManagersFinance Ashford Capital Management, Inc. (Ashford) is an independent, SEC-registered investment advisor headquartered in Wilmington, Delaware. The firm was founded by Theodore H. Ashford in 1979. Ashford offers investment management services to institutions and high net worth individuals that seek to discover small growth companies. The firm offers both separately managed accounts and limited partnership investment opportunities.	Finance
O'Brien Greene Small-Capitalization Stock Fund LP O'Brien Greene Small-Capitalization Stock Fund LP Financial ConglomeratesFinance O'Brien Greene Small-Capitalization Stock Fund LP provides investment services. The company is headquartered in Media, PA.	Finance
O'Brien Greene & Co., Inc. O'Brien Greene & Co., Inc. Investment ManagersFinance O'Brien Greene & Co., Inc. (O'Brien Greene) is an independent, SEC-registered investment adviser headquartered in Media, Pennsylvania. Founded in 1969 by G. Davis Greene, Mark O’Brien took over ownership and management of the firm in 1987 and changed its name Greene Associates to O’Brien Greene & Co, Inc. O'Brien Greene provides investment advice to individuals, families, corporations, pension and profit- sharing plans, trusts, estates and charitable organizations.	Finance

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