![Mark Alexander](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Mark Alexander
Chief Executive Officer at
Landmark Property Group LLC
Net worth: 7 M $ as of 31/05/2026
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 |
|---|---|---|---|---|
W. P. CAREY INC. 0.02% | 01/10/2025 | 51,095 ( 0.02% ) | 4 M $ | 31/05/2026 |
| 01/06/2026 | 47,913 ( 0.04% ) | 4 M $ | 31/05/2026 |
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 | 01/09/2009 |
Landmark Property Group LLC
 Landmark Property Group LLC Real Estate DevelopmentFinance Operates non residential buildings | Chief Executive Officer | 01/01/2009 |
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 | - |
Former positions of Mark Alexander
| Companies | Position | End |
|---|---|---|
| BUILDERS FIRSTSOURCE, INC. | Director/Board Member | 03/06/2026 |
| W. P. CAREY INC. | Director/Board Member | 12/12/2025 |
| BMC STOCK HOLDINGS, INC. | Director/Board Member | 01/01/2021 |
Kaydon Corp.
 Kaydon Corp. Metal FabricationProducer Manufacturing Designs, manufactures and sells slewing ring bearings | Director/Board Member | 16/10/2013 |
| SUBURBAN PROPANE PARTNERS, L.P. | Chief Executive Officer | 01/09/2009 |
Training of Mark Alexander
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
58
1st degree connections
13
1st degree companies
Male
Female
Members of the board
Executives
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 |
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