![Joseph Platt](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>)
Joseph Platt
Director/Board Member at
GREENLIGHT CAPITAL RE, LTD.
Net worth: 6 M $ as of 29/06/2026
Profile
Mr. Joseph P.
Platt, Jr., is an Independent Director at Core Natural Resources, Inc., a Lead Independent Director at Greenlight Capital Re Ltd., a General Partner at Thorn Partners LP, a Member at New York State Bar Association, a Chairman at Basic Health International, an Independent Director at BlackRock Liquidity Funds and an Independent Trustee at Blackrock Collateral Trust.
He is on the Board of Directors at Core Natural Resources, Inc., Greenlight Capital Re Ltd., Greenlight Reinsurance Ltd., WQED Multimedia, BlackRock Liquidity Funds, Blackrock Collateral Trust and BlackRock Funds III.
Mr. Platt was previously employed as an Independent Director by CONSOL Energy, Inc., an Independent Director by CONSOL Energy, Inc. /Old/, a Lead Independent Director by Greenlight Capital Re Ltd., and a Director & Executive Vice President by Johnson & Higgins.
He also served on the board at West Penn Allegheny Health System and Jones Brown, Inc. He received his undergraduate degree from Manhattan University and a graduate degree from Fordham University School of Law.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
0.08% | 05/03/2026 | 40,660 ( 0.08% ) | 3 M $ | 29/06/2026 |
| 25/05/2026 | 169,619 ( 0.51% ) | 3 M $ | 29/06/2026 |
Joseph Platt active positions
| Companies | Position | Start |
|---|---|---|
| GREENLIGHT CAPITAL RE, LTD. | Director/Board Member | 25/07/2022 |
BlackRock Liquidity Funds
 BlackRock Liquidity Funds Investment Trusts/Mutual FundsMiscellaneous Acts as Open-End Investment Fund/Unit Trust | Director/Board Member | - |
BlackRock Funds III
 BlackRock Funds III Investment Trusts/Mutual FundsMiscellaneous Acts as Open-End Investment Fund/Unit Trust | Director/Board Member | - |
Basic Health International
 Basic Health International Miscellaneous Commercial ServicesCommercial Services Provide clinical training, research and public policy guidance in the field of cervical cancer screening and treatment | Chairman | - |
WQED Multimedia
 WQED Multimedia BroadcastingConsumer Services Operates as a television and radio broadcasting stations | Director/Board Member | - |
Blackrock Collateral Trust
 Blackrock Collateral Trust Investment ManagersFinance Provides investment advisory services | Director/Board Member | - |
Greenlight Reinsurance Ltd.
 Greenlight Reinsurance Ltd. Property/Casualty InsuranceFinance Provides property and casualty reinsurance services | Director/Board Member | 30/06/2004 |
Thorn Partners LP | Corporate Officer/Principal | 22/03/2011 |
New York State Bar Association
 New York State Bar Association Miscellaneous Commercial ServicesCommercial Services Operates as a bar association | Corporate Officer/Principal | 06/04/2010 |
Former positions of Joseph Platt
| Companies | Position | End |
|---|---|---|
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| ░░░░░ ░░░░░░ ░░░░ | ░░░░░░░░░░░░░░ ░░░░░░ | - |
Training of Joseph Platt
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
56
1st degree connections
16
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 16 |
|---|---|
Johnson & Higgins
 Johnson & Higgins Life/Health InsuranceFinance Reinsurance brokers | Finance |
CNX Resources Corp.
 CNX Resources Corp. Oil & Gas ProductionEnergy Minerals Develops and explores NGLs, natural gas & oil projects | Energy Minerals |
BlackRock Funds III
BlackRock Funds III Investment Trusts/Mutual FundsMiscellaneous Acts as Open-End Investment Fund/Unit Trust | Miscellaneous |
BlackRock Liquidity Funds
BlackRock Liquidity Funds Investment Trusts/Mutual FundsMiscellaneous Acts as Open-End Investment Fund/Unit Trust | Miscellaneous |
Greenlight Capital Re Ltd.
 Greenlight Capital Re Ltd. Property/Casualty InsuranceFinance Operates a holding company with interest in providing property and casualty reinsurance services | Finance |
Manhattan College
 Manhattan College Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
West Penn Allegheny Health System
 West Penn Allegheny Health System Hospital/Nursing ManagementHealth Services Provides medical and healthcare services | Health Services |
Jones Brown, Inc.
 Jones Brown, Inc. Insurance Brokers/ServicesFinance Provides insurance consulting and brokerage services | Finance |
New York State Bar Association
New York State Bar Association Miscellaneous Commercial ServicesCommercial Services Operates as a bar association | Commercial Services |
WQED Multimedia
WQED Multimedia BroadcastingConsumer Services Operates as a television and radio broadcasting stations | Consumer Services |
Greenlight Reinsurance Ltd.
Greenlight Reinsurance Ltd. Property/Casualty InsuranceFinance Provides property and casualty reinsurance services | Finance |
Thorn Partners LP | |
Fordham University School of Law
 Fordham University School of Law Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Blackrock Collateral Trust
Blackrock Collateral Trust Investment ManagersFinance Provides investment advisory services | Finance |
Basic Health International
Basic Health International Miscellaneous Commercial ServicesCommercial Services Provide clinical training, research and public policy guidance in the field of cervical cancer screening and treatment | Commercial Services |
CONSOL Energy, Inc.
 CONSOL Energy, Inc. CoalEnergy Minerals Provides bituminous coal mining services | Energy Minerals |
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