Mark Alexander

Chief Executive Officer at

Landmark Property Group LLC

Net worth: 8 M $ as of 2026-06-29

67 year

61 connections

Finance

Distribution Services

Consumer Services

Profile

Mark A. Alexander is the founder of Alexander Investors LLC, founded in 2009, where the title held is Chairman & Chief Executive Officer.
Mr. Alexander is the founder of Landmark Property Group LLC, founded in 2009, where the title held is Chairman & Chief Executive Officer.
Current jobs include Director at W.P.
Carey, Inc. (Real Estate) and Member at Suburban Energy Services Group LLC.
Former jobs include President, Chief Executive Officer & Director at Suburban Propane Partners LP from 1996 to 2009; Independent Director at Kaydon Corp.
from 2011 to 2013; Director-Business Advisory Council at Mendoza College of Business; Independent Director at Builders FirstSource, Inc. from 2021 to 2026; Independent Director at W.P.
Carey, Inc. from 2016 to 2025; Independent Director at BMC Stock Holdings, Inc. from 2017 to 2021; Senior Vice President-Business Development at Hanson Industries, Inc. from 1984 to 1996; and Senior Accountant at Pricewaterhouse & Co. from 1980 to 1984.
Education includes undergraduate degree from the University of Notre Dame.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
BUILDERS FIRSTSOURCE, INC. 0.04%	2026-05-31	47,913 ( 0.04% )	4 M $	2026-06-29
W. P. CAREY INC. 0.02%	2025-09-30	51,095 ( 0.02% )	4 M $	2026-06-29

Mark Alexander active positions

Companies	Position	Start
Suburban Energy Services Group LLC Suburban Energy Services Group LLC Oilfield Services/EquipmentIndustrial Services Supplies energy for homes, farms, and businesses	Corporate Officer/Principal	-
Alexander Investors LLC	Chief Executive Officer	2009-08-31
Landmark Property Group LLC Landmark Property Group LLC Real Estate DevelopmentFinance Operates non residential buildings	Chief Executive Officer	2008-12-31
W.P. Carey, Inc. (Real Estate) W.P. Carey, Inc. (Real Estate) Investment ManagersFinance W.P. Carey provides long-term sale-leaseback and build-to-suit financing for companies worldwide. The largest owner/manager of net lease assets, W.P. Carey's corporate finance focused credit and real estate underwriting process is a constant that has been successfully leveraged across a wide variety of industries and property types. The firm's portfolio of long-term leases with creditworthy tenants has an established history of generating stable cash flows that have enabled them to deliver consistent and rising dividend income to investors for nearly four decades.	Director/Board Member	-

All active positions of Mark Alexander

Former positions of Mark Alexander

Companies	Position	End
BUILDERS FIRSTSOURCE, INC.	Director/Board Member	2026-06-02
W. P. CAREY INC.	Director/Board Member	2025-12-11
BMC STOCK HOLDINGS, INC.	Director/Board Member	2020-12-31
Kaydon Corp. Kaydon Corp. Metal FabricationProducer Manufacturing Designs, manufactures and sells slewing ring bearings	Director/Board Member	2013-10-15
SUBURBAN PROPANE PARTNERS, L.P.	Chief Executive Officer	2009-08-31

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Linked companies

Private companies	13
Kaydon Corp. Kaydon Corp. Metal FabricationProducer Manufacturing Designs, manufactures and sells slewing ring bearings	Producer Manufacturing
Suburban Propane Partners LP Suburban Propane Partners LP Wholesale DistributorsDistribution Services Markets propane gas and related products	Distribution Services
W.P. Carey, Inc. W.P. Carey, Inc. Real Estate Investment TrustsFinance Operates as a real estate investment trust which invests in retail stores, industrial warehouses and self-storage properties	Finance
Hanson Industries, Inc. Hanson Industries, Inc. Real Estate DevelopmentFinance Provides real estate services	Finance
University of Notre Dame University of Notre Dame Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Suburban Energy Services Group LLC Suburban Energy Services Group LLC Oilfield Services/EquipmentIndustrial Services Supplies energy for homes, farms, and businesses	Industrial Services
Builders FirstSource, Inc. Builders FirstSource, Inc. Home Improvement ChainsRetail Trade Manufactures and distributes building products and services	Retail Trade
Pricewaterhouse & Co. Pricewaterhouse & Co. Miscellaneous Commercial ServicesCommercial Services Provides accounting services	Commercial Services
Alexander Investors LLC
W.P. Carey, Inc. (Real Estate) W.P. Carey, Inc. (Real Estate) Investment ManagersFinance W.P. Carey provides long-term sale-leaseback and build-to-suit financing for companies worldwide. The largest owner/manager of net lease assets, W.P. Carey's corporate finance focused credit and real estate underwriting process is a constant that has been successfully leveraged across a wide variety of industries and property types. The firm's portfolio of long-term leases with creditworthy tenants has an established history of generating stable cash flows that have enabled them to deliver consistent and rising dividend income to investors for nearly four decades.	Finance
Mendoza College of Business Mendoza College of Business Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
BMC Stock Holdings, Inc. BMC Stock Holdings, Inc. Wholesale DistributorsDistribution Services Distributes building materials	Distribution Services
Landmark Property Group LLC Landmark Property Group LLC Real Estate DevelopmentFinance Operates non residential buildings	Finance