Michael O'Halleran
Director/Board Member at RYAN SPECIALTY HOLDINGS, INC.
Net worth: 45 M $ as of 2024-03-30
Profile
Michael D.
O'Halleran founded Aon Re, Inc. in 2007, where he worked as Chairman from 2007 to 2009.
Mr. O'Halleran also currently works at Geneva Re Ltd., as Executive Chairman, The American Ireland Fund, as Director, Providence St. Mel School (Illinois), as Director, Ryan Specialty LLC, as Director, Ryan Specialty Holdings, Inc., as Director from 2021, University College Dublin, as Trustee, The Commercial Club of Chicago, as Member, World Presidents' Organization, as Member, Chicago Theatre Group, Inc., as Member-Trustees Board, and Manchesterstory Group LLC, as Chair & Advisory Board.
Mr. O'Halleran also formerly worked at World Business Chicago, as Co-Chairman in 2012, Aon Re Global, as Executive Chairman from 1987 to 2009, Cardinal Health, Inc., as Director from 1999 to 2009, Allegiance Corp., as Director, NuVasive, Inc., as Independent Director from 2016 to 2019, CareFusion Corp., as Independent Director from 2009 to 2015, The Angus Robinson, Jr. Memorial Foundation, Inc., as Director, Aon Global Ltd.
(United Kingdom), as Senior Executive Vice President, General Reinsurance Corp., as Principal, Employers Insurance Co. of Wausau, as Principal, The Economic Club of Chicago (Illinois), as Member, and Aon Corp.
(Illinois), as President & Chief Operating Officer from 1999 to 2005.
Mr. O'Halleran received his undergraduate degree from the University of Wisconsin.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2024-03-10 | 810,339 ( 0.68% ) | 45 M $ | 2024-03-30 |
Michael O'Halleran active positions
| Companies | Position | Start |
|---|---|---|
| RYAN SPECIALTY HOLDINGS, INC. | Director/Board Member | 2021-07-20 |
The Commercial Club of Chicago
 The Commercial Club of Chicago Miscellaneous Commercial ServicesCommercial Services The Commercial Club of Chicago works to shape the future of the region to make it a better place for everyone to live, work, and do business. The non-profit company is based in Chicago, IL. The company's civic committee has announced violence reduction goals and commitments to help address public safety. | Corporate Officer/Principal | - |
The American Ireland Fund
 The American Ireland Fund Investment ManagersFinance The American Ireland Fund raises funds for the support programs of peace and reconciliation, arts and culture, education, and community development throughout the island of Ireland. The company was founded by Anthony J.F. O'Reilly and Daniel M. Rooney in 1976 and is headquartered in Boston, MA. | Director/Board Member | - |
| Geneva Re Ltd. | Chairman | - |
Ryan Specialty LLC
 Ryan Specialty LLC Insurance Brokers/ServicesFinance Ryan Specialty Group LLC engages in the provision of brokerage, underwriting and insurance services. Its products and services include allied healthcare, alternative energy, commercial property, cargo, distribution and claim management, oil and gas exploration, tax insurance and wind and earthquake buybacks. The firm offers property, casualty, transportation and professional liability risks. The company was founded by Patrick G. Ryan, Sr. in 2010 and is headquartered in Chicago, IL. | Director/Board Member | - |
Chicago Theatre Group, Inc.
 Chicago Theatre Group, Inc. Movies/EntertainmentConsumer Services Chicago Theatre Group, Inc. encompasses a drama school and professional acting services. It produces classic and contemporary works which gives voice to wide range of artists and visions. The company was founded in July 1922 and is headquartered in Chicago, IL. | Director/Board Member | - |
| Providence St. Mel School (Illinois) | Director/Board Member | - |
| World Presidents' Organization | Corporate Officer/Principal | 2011-07-20 |
| University College Dublin | Director/Board Member | - |
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Former positions of Michael O'Halleran
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Training of Michael O'Halleran
| University of Wisconsin | Undergraduate Degree |
Experiences
Positions held
Connections
1st degree connections
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Listed companies | 2 |
|---|---|
| CARDINAL HEALTH, INC. | Distribution Services |
| RYAN SPECIALTY HOLDINGS, INC. | Finance |
| Private companies | 19 |
|---|---|
Aon Global Ltd. (United Kingdom)
 Aon Global Ltd. (United Kingdom) Insurance Brokers/ServicesFinance Aon Plc is engaged in the provision of a range of risk, retirement, and health solutions. It operates through Aon United segment. The Aon United segment gives advice and solutions to clients focused on risk, retirement, and health through five principal products and service revenue lines: Commercial Risk Solutions, Reinsurance Solutions, Retirement Solutions, Health Solutions, and Data and Analytic Services. The Commercial Risk Solutions includes retail brokerage, cyber solutions, global risk consulting, and captives. The Reinsurance Solutions comprises treaty and facultative reinsurance brokerage and capital markets. The Retirement Solutions consists core retirement, investment consulting, and talent, rewards and performance. The Health Solutions involves in heath and benefits brokerage and healthcare exchanges. The Data and Analytic Services composes of Affinity, Aon InPoint, and ReView. The company was founded in 1979 and is headquartered in London, the United Kingdom. | Finance |
Allegiance Corp.
 Allegiance Corp. Medical DistributorsDistribution Services Part of Cardinal Health, Inc., Allegiance Corp. distributes pharmaceuticals and medical supplies. The private company is based in Dublin, OH. Allegiance was acquired by Cardinal Health, Inc. on February 03, 1999 for $5,600.38 million. | Distribution Services |
NuVasive, Inc.
 NuVasive, Inc. Medical SpecialtiesHealth Technology NuVasive, Inc. engages in the development, manufacture, sale, and provision of procedural solutions for spine surgery. It offers a comprehensive portfolio of procedurally integrated spine surgery solutions, including surgical access instruments, spinal implants, fixation systems, biologics, and enabling technologies, as well as systems and services for intraoperative neuromonitoring. The company was founded by Alexis V. Lukianov on July 21, 1997 and is headquartered in San Diego, CA. | Health Technology |
General Reinsurance Corp.
 General Reinsurance Corp. Multi-Line InsuranceFinance General Reinsurance Corp. is engaged in the provision of life and non-life reinsurance solutions. Its solution areas encompass aviation, life and health, treaty, and facultative insurance solutions. The firm also offers risk assessment, management, and business consulting services. The company was founded on February 28, 1973 and is headquartered in Stamford, CT. | Finance |
CareFusion Corp.
 CareFusion Corp. Medical DistributorsDistribution Services CareFusion Corp. engages in the manufactures of medical equipment and device. The company was founded on February 4, 2009 and is headquartered in San Diego, CA. | Distribution Services |
Employers Insurance Co. of Wausau
 Employers Insurance Co. of Wausau Property/Casualty InsuranceFinance Employers Insurance Company of Wausau provides property and casualty insurance services. Its products include commercial auto, general liability, workers compensation, and property insurance. The company's services include loss prevention, and claims management services. It was founded in 1911 and is headquartered in Wausau, WI. | Finance |
World Business Chicago
 World Business Chicago Miscellaneous Commercial ServicesCommercial Services World Business Chicago provides economic data and statistical assistance services. The company was founded in 1999 and is headquartered in Chicago, IL. | Commercial Services |
The Commercial Club of Chicago
The Commercial Club of Chicago Miscellaneous Commercial ServicesCommercial Services The Commercial Club of Chicago works to shape the future of the region to make it a better place for everyone to live, work, and do business. The non-profit company is based in Chicago, IL. The company's civic committee has announced violence reduction goals and commitments to help address public safety. | Commercial Services |
| World Presidents' Organization | |
The Economic Club of Chicago (Illinois)
 The Economic Club of Chicago (Illinois) Miscellaneous Commercial ServicesCommercial Services The Economic Club of Chicago engages in fostering connections among leaders to encourage dialogue on important economic and social issues. It also cultivates the next generation of civic leadership. The company was founded by Lucius Teter in 1927 and is headquartered in Chicago, IL. | Commercial Services |
The American Ireland Fund
The American Ireland Fund Investment ManagersFinance The American Ireland Fund raises funds for the support programs of peace and reconciliation, arts and culture, education, and community development throughout the island of Ireland. The company was founded by Anthony J.F. O'Reilly and Daniel M. Rooney in 1976 and is headquartered in Boston, MA. | Finance |
Aon Re Global
 Aon Re Global Insurance Brokers/ServicesFinance Aon Re Global provides insurance services. The firm also provides reinsurance coverage as well as captive management services and catastrophe information forecasting. It offers accounting and actuarial services with support of contracts and claims consultancies. The company was founded in 1993 and is headquartered in Chicago, IL. | Finance |
Chicago Theatre Group, Inc.
Chicago Theatre Group, Inc. Movies/EntertainmentConsumer Services Chicago Theatre Group, Inc. encompasses a drama school and professional acting services. It produces classic and contemporary works which gives voice to wide range of artists and visions. The company was founded in July 1922 and is headquartered in Chicago, IL. | Consumer Services |
Aon Re, Inc.
 Aon Re, Inc. Insurance Brokers/ServicesFinance Aon Benfield, Inc. provides insurance brokerage and risk management services. The company was incorporated on August 25, 1988 and is headquartered in Chicago, IL. | Finance |
Ryan Specialty LLC
Ryan Specialty LLC Insurance Brokers/ServicesFinance Ryan Specialty Group LLC engages in the provision of brokerage, underwriting and insurance services. Its products and services include allied healthcare, alternative energy, commercial property, cargo, distribution and claim management, oil and gas exploration, tax insurance and wind and earthquake buybacks. The firm offers property, casualty, transportation and professional liability risks. The company was founded by Patrick G. Ryan, Sr. in 2010 and is headquartered in Chicago, IL. | Finance |
The Angus Robinson, Jr. Memorial Foundation, Inc.
 The Angus Robinson, Jr. Memorial Foundation, Inc. Investment Trusts/Mutual FundsMiscellaneous The Angus Robinson, Jr. Memorial Foundation provides scholarship awards to qualified students who are enrolled in an insurance, risk management or actuarial science four-year degree program. The company was founded in 1990 and is headquartered in | Miscellaneous |
Aon Corp. (Illinois)
 Aon Corp. (Illinois) Insurance Brokers/ServicesFinance Aon Corp. provides insurance services. The company is headquartered in Springfield, IL. | Finance |
Manchesterstory Group LLC
 Manchesterstory Group LLC Investment ManagersFinance Manchesterstory Group LLC (ManchesterStory Group) is a venture capital firm founded in 2017 by Matthew P. Kinley and David Wayne Miles. The firm is headquartered in West Des Moines, Iowa. | Finance |
| Geneva Re Ltd. |
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