William Mayer

Chairman at IRONSTONE PROPERTIES, INC.

Net worth: 1 $ as of 2023-08-30

85 year

81 connections

Finance

Consumer Services

Commercial Services

Profile

William Emilio Mayer founded Park Avenue Equity Partners in 1999, where he is working as Partner from 1999.
Mr. Mayer also currently works at Ironstone Properties, Inc., as Chairman from 2021, Middle East Investment Initiative, as Vice Chairman from 2013, Rosemore, Inc., as Director from 2005, and various other companies.
Mr. Mayer also formerly worked at First Boston Corp., as President & Chief Executive Officer from 1967 to 1990, The Aspen Institute, Inc., as Chairman from 2007 to 2008, Lee Enterprises, Inc., as Lead Independent Director, and various other companies.
Mr. Mayer received his undergraduate degree and Masters Business Admin degree from the University of Maryland.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
IRONSTONE PROPERTIES, INC. 4.11%	2024-12-30	142,857 ( 4.11% )	1 $	2023-08-30

William Mayer active positions

Companies	Position	Start
BLACKROCK CAPITAL INVESTMENT CORPORATION	Director/Board Member	2004-12-31
IRONSTONE PROPERTIES, INC.	Chairman	2021-03-24
Pardee Rand Graduate School Pardee Rand Graduate School Other Consumer ServicesConsumer Services Functions as a College/University	Director/Board Member	-
The Rubin Museum of Art The Rubin Museum of Art Other Consumer ServicesConsumer Services Operates art museum	Director/Board Member	-
Global Health Corps Global Health Corps Medical/Nursing ServicesHealth Services Provides blood related health services	Director/Board Member	-
Lirio, Inc. Lirio, Inc. Packaged SoftwareTechnology Services Develops communication software for financial advisors	Director/Board Member	-
Friends of Florence, Inc.	Director/Board Member	-
Rosemore, Inc. Rosemore, Inc. Oil & Gas ProductionEnergy Minerals Explores and trades oil and natural gas	Director/Board Member	2004-12-31
Hambrecht Partners Holding LLC Hambrecht Partners Holding LLC Investment ManagersFinance Hambrecht Partners invests in companies located in the United States. The firm focuses on companies operating in the fields of healthcare and technology sectors. It provides financing for early-stage capital requirements.	Director/Board Member	2008-12-31
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All active positions of William Mayer

Former positions of William Mayer

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See the detail of William Mayer's experience

Training of William Mayer

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of William Mayer's experience

Connections

1st degree connections

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Private companies	42
Credit Suisse Securities (USA) LLC (Broker) Credit Suisse Securities (USA) LLC (Broker) Investment Banks/BrokersFinance Provides brokerage services	Finance
First Boston Corp. First Boston Corp. Real Estate Investment TrustsFinance Operates as real estate investment trusts	Finance
Lee Enterprises, Inc. Lee Enterprises, Inc. Publishing: NewspapersConsumer Services Provides local news, information, marketing and advertising services	Consumer Services
Trusted Media Brands, Inc. Trusted Media Brands, Inc. Advertising/Marketing ServicesCommercial Services Operates as a direct marketing company	Commercial Services
Columbia Funds Variable Insurance Trust Columbia Funds Variable Insurance Trust Investment Trusts/Mutual FundsMiscellaneous Acts as Open-End Investment Fund/Unit Trust	Miscellaneous
Ironstone Properties, Inc. Ironstone Properties, Inc. Financial ConglomeratesFinance Engages in funding of businesses	Finance
Liberty All Star Growth Fund, Inc.	Miscellaneous
Rochester Christian University Rochester Christian University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Rosemore, Inc. Rosemore, Inc. Oil & Gas ProductionEnergy Minerals Explores and trades oil and natural gas	Energy Minerals
Reliant Pharmaceuticals LLC Reliant Pharmaceuticals LLC Pharmaceuticals: MajorHealth Technology Manufactures pharmaceutical products	Health Technology
Miller Buckfire & Co. LLC Miller Buckfire & Co. LLC Investment ManagersFinance Provides restructuring advisory services	Finance
BlackRock Capital Investment Corp BlackRock Capital Investment Corp Investment ManagersFinance Operates as a closed-end management investment company	Finance
Columbia Funds Series Trust I
DynaVox, Inc. DynaVox, Inc. Information Technology ServicesTechnology Services Provides speech generating devices	Technology Services
Liberty All Star Equity Fund Liberty All Star Equity Fund Investment Trusts/Mutual FundsMiscellaneous Acts as Closed-End Investment Fund/Investment Trust	Miscellaneous
Premier Healthcare Solutions, Inc. Premier Healthcare Solutions, Inc. Miscellaneous Commercial ServicesCommercial Services Provides health care management consulting services	Commercial Services
Development Capital Partners LLC Development Capital Partners LLC Investment ManagersFinance Profile Unavailable	Finance
Park Avenue Equity Partners Park Avenue Equity Partners Investment ManagersFinance Park Avenue Equity Partners invests in companies located in the United States. The firm focuses on a broad range of sectors and industries. It provides financing for buyout stage capital transactions.	Finance
Tobii Dynavox LLC Tobii Dynavox LLC Medical SpecialtiesHealth Technology Manufactures hearing machines for disabled people	Health Technology
University of Maryland University of Maryland Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Council on Foreign Relations, Inc. Council on Foreign Relations, Inc. Investment Trusts/Mutual FundsMiscellaneous Functions as a foundation or endowment	Miscellaneous
The Aspen Institute, Inc. The Aspen Institute, Inc. Miscellaneous Commercial ServicesCommercial Services Operates institute that fosters leadership skills	Commercial Services
The Rubin Museum of Art The Rubin Museum of Art Other Consumer ServicesConsumer Services Operates art museum	Consumer Services
Washington Institute Foundation
52nd Street Capital Advisors LLC 52nd Street Capital Advisors LLC Investment ManagersFinance 52nd Street Capital invests in companies located in the United States. The firm targets companies operating across a broad range of sectors and industries. It provides financing for buyout capital requirements.	Finance
The Atlantic Council of the United States The Atlantic Council of the United States Miscellaneous Commercial ServicesCommercial Services Provides international affairs services	Commercial Services
Friends of Florence, Inc.
Aspen Institute Italia Aspen Institute Italia Miscellaneous Commercial ServicesCommercial Services Operates as a nonprofit policy institute promoting leadership, public policy research, international dialogue and economic and social development	Commercial Services
Middle East Investment Initiative Middle East Investment Initiative Miscellaneous Commercial ServicesCommercial Services Operates as a non-profit organization that leverages public and private resources to deliver finance & technical assistance	Commercial Services
Dynavox Systems Holdings LLC Dynavox Systems Holdings LLC Miscellaneous Commercial ServicesCommercial Services Provides accounting services	Commercial Services
Robert H. Smith School of Business Robert H. Smith School of Business Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Pardee Rand Graduate School Pardee Rand Graduate School Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Premier, Inc. Premier, Inc. Hospital/Nursing ManagementHealth Services Operates as a holding company with the interests in health services	Health Services
Premier Plans LLC
University of Rochester Simon Business School University of Rochester Simon Business School Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Harlem Academy Harlem Academy Other Consumer ServicesConsumer Services Operates as a co-educational school	Consumer Services
Acumen /CA/ Acumen /CA/ BiotechnologyHealth Technology Provides revolutionizing the diagnosis and treatment of autism and other disorders through smartphone	Health Technology
Hambrecht Partners Holding LLC Hambrecht Partners Holding LLC Investment ManagersFinance Hambrecht Partners invests in companies located in the United States. The firm focuses on companies operating in the fields of healthcare and technology sectors. It provides financing for early-stage capital requirements.	Finance
Global Health Corps Global Health Corps Medical/Nursing ServicesHealth Services Provides blood related health services	Health Services
Lirio, Inc. Lirio, Inc. Packaged SoftwareTechnology Services Develops communication software for financial advisors	Technology Services
Rosehill Resources, Inc. Rosehill Resources, Inc. MiscellaneousMiscellaneous Explores for oil and natural gas	Miscellaneous
Renovo Concepts, Inc. Renovo Concepts, Inc. Medical/Nursing ServicesHealth Services Provides healthcare services	Health Services