Last updated 2026-07-20
Portfolio
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in our dataset
Rounds participated
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Rounds led
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Rounds' value
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total disclosed, rounds participated
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About
Mayo A. Shattuck III is an American businessman and angel investor. He has held prominent positions in the energy sector, including chairman of Exelon Corporation and CEO of Constellation Energy Group. Shattuck is also involved in various philanthropic efforts. He has demonstrated a track record of investing in Israeli companies, particularly in the energy and technology sectors.
Portfolio
No portfolio companies in this dataset yet.
Investment activity
1 portfolio exit on record.
Portfolio by sector
Energy Tech1
Health Tech & Life Sciences1
Q&A
- What is Mayo Shattuck's investment focus by sector?
- Mayo Shattuck has invested in companies across the Energy Tech and Health Tech & Life Sciences sectors.
- Can you name some of Mayo Shattuck's portfolio companies?
- Mayo Shattuck's portfolio includes Nostromo Energy, which focuses on ice-based energy storage.
- What is Mayo Shattuck's typical investment stage?
- Mayo Shattuck has participated in Seed stage rounds, as seen with Olive Diagnostics.
- Has Mayo Shattuck had any notable exits?
- Yes, Mayo Shattuck had an exit in June 2021 with Nostromo Energy, which went public on the TASE.
- When was Mayo Shattuck's most recent investment activity?
- Mayo Shattuck made an investment in September 2022.
- What is Mayo Shattuck's investment range?
- Mayo Shattuck typically invests between $500K and $4M.