JOHN T. PRESTON - Corporate Board Profile

CLEAN HARBORS INC

Filing Date	Source Excerpt
2017-04-26	John T. Preston, age 67, is the Managing Partner of TEM Capital. He joined the Board in 1995 and now serves on the Corporate Governance and Compensation Committees.
2018-04-25	John T. Preston, age 68, is the Managing Partner of TEM Capital, a privately-held equity investment company, and President and Chief Executive Officer of Continuum Energy Technologies LLC, a private company. He joined the Board in 1995 and now serves on the Corporate Governance and Compensation Committees.
2019-04-24	John T. Preston Age: 69 Director Class: II Director Since: 1995 Committees: Corporate Governance Compensation Mr. Preston is the Managing Partner of TEM Capital, a privately-held equity investment company, and President and Chief Executive Officer of Continuum Energy Technologies LLC, a private company. ... The following table describes the compensation paid by the Company to each of the persons who served as non-employee directors during 2018: John T. Preston $70,000 Fees Earned, $119,984 Stock Awards, Total $189,984.
2020-04-24	John T. Preston Age: 70 Director Class: II Director Since: 1995 Committees: Corporate Governance Compensation ...During 2019, the Company paid to each non-employee director an annual cash retainer fee of $70,000, plus $15,000 for serving as the Chair of the Compensation Committee, $12,000 for serving as the Chair of the Corporate Governance Committee or the Environmental, Health and Safety Committee...The following table describes the compensation paid by the Company to each of the persons who served as non-employee directors during 2019: Name Fees Earned Stock Awards All Other Compensation Total John T. Preston $70,000 $140,030 — $210,030
2021-04-23	Mr. Preston is the Managing Partner of TEM Capital, a private equity investment company, and is currently a director of numerous private companies. From 1992 through 1995, he served as Director of Technology Development at the Massachusetts Institute of Technology (“MIT”). Prior to that he was the Director of the MIT Technology Licensing Office where he was responsible for the commercialization of intellectual property developed at MIT. Some of Mr. Preston's prior appointments include director or advisory positions for the Governor of Massachusetts, the U.S. Department of Defense, the National Aeronautics and Space Administration, and the National Technology Board of Singapore. He holds a BS in Physics from the University of Wisconsin and an MBA from Northwestern University.
2022-04-14	John T. Preston Age: 72 Director Class: II Committees: Compensation Corporate Governance Mr. Preston is the Managing Partner of TEM Capital... Mr. Preston brings to the Board his considerable experience in technology development, corporate growth and corporate governance.
2023-04-13	Mr. Preston is the Managing Partner of TEM Capital, a private equity investment company, and is currently a director of numerous private companies. From 1992 through 1995, he served as Director of Technology Development at the Massachusetts Institute of Technology (“MIT”). Prior to that he was the Director of the MIT Technology Licensing Office where he was responsible for the commercialization of intellectual property developed at MIT. Some of Mr. Preston's prior appointments include director or advisory positions for the Governor of Massachusetts, the U.S. Department of Defense, the National Aeronautics and Space Administration, and the National Technology Board of Singapore. He holds a BS in Physics from the University of Wisconsin and an MBA from Northwestern University.
2024-04-10	Mr. Preston is the Managing Partner of TEM Capital, a private equity investment company, and is currently a director of numerous private companies. From 1992 through 1995, he served as Director of Technology Development at the Massachusetts Institute of Technology (“MIT”). Prior to that he was the Director of the MIT Technology Licensing Office where he was responsible for the commercialization of intellectual property developed at MIT.