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Distinct shells carrying a filed role for this person — not every shell they have ever touched.
Of those vehicles, the ones that closed a merger.
Announced but not closed, and still hunting.
No closed vehicle here has both a stored price and a filed trust value to score it against.
2 vehicles on file, newest listing first
none appears on more than one · 1 vehicle carry no counterparty filing we have read
Gregory R. Monahan is a seasoned investment professional and SPAC sponsor who currently serves as Chief Executive Officer and Director of Legato Merger Corp. IV (NYSE: LEGO), a special purpose acquisition company that raised $230 million in its January 23, 2026 initial public offering, including the full exercise of underwriters' over-allotment. BTIG served as sole bookrunner for the offering, which targets infrastructure, industrials, and artificial intelligence sectors globally. In his capacity at Legato IV, Monahan leads the SPAC alongside Chief SPAC Officer Eric Rosenfeld, Chairman Brian Pratt, and Vice Chairman David Sgro. Monahan is also a Senior Managing Director of Crescendo Partners, L.P., a New York-based investment firm, and serves as Portfolio Manager of Jamarant Advisors. He is based in Darien, Connecticut, and the Legato sponsor group operates from 777 Third Avenue, 37th Floor, New York, NY.
Monahan brings over 25 years of investment and operational experience to his SPAC leadership roles. He began his activist investing career in 2005 after co-founding and selling Bind Network Solutions, a venture that established his credentials in both entrepreneurship and technology. Prior to that, he built a foundation in mechanical engineering and finance, earning a Bachelor of Science degree in Mechanical Engineering from Union College and an MBA from Columbia Business School. Throughout his career at Crescendo Partners and Jamarant Advisors, Monahan has served on the board of directors of Southland Holdings (NYSE: SLND), a major construction company, and has previously held seats on nine additional public company boards. He is also listed as a Director at Refresco Beverages US Inc. His extensive public company governance experience spans multiple sectors including construction, oilfield services, restaurants, and steel manufacturing.
Monahan has established himself as one of the most prolific SPAC sponsors in the market, with aggregate capital deployed across his SPAC portfolio totaling approximately $478 million across at least five transactions with a merger completion rate of 40 percent. His SPAC track record includes Legato Merger Corp., which completed its business combination with Algoma Steel (NASDAQ: ASTL) in 2021, transforming the Canadian steel producer into a U.S.-listed public company; Legato Merger Corp. II, which merged with construction company Southland Holdings (NYSE: SLND) in 2023 in a deal valued at approximately $463 million; and Legato Merger Corp. III (AMEX: LEGT), which IPO'd on March 28, 2024, and announced a planned combination with Einride, a Swedish electric and autonomous trucking company. His earlier SPAC ventures include Allegro Merger Corp. (closed, restaurant sector, $130 million IPO in May 2018), Trio Merger Corp. (announced, oilfield services, $50.5 million IPO in March 2011), Symphony Acquisition Corp. and Staccato Acquisition Corp. (both IPO'd in June 2008, $47.3 million each, targeting general industry). He is set to join the board of directors of Trio upon completion of its merger. Monahan's frequent
This record is keyed to SEC CIK 0001422283 — the identifier this person files under in their own name. Every vehicle above is a filing made under that CIK, so “the same person on two shells” is a fact about an SEC identifier rather than about a name that happens to match.
Roles are the strings the filings used, in the order they were filed. Nothing on this page ranks them, infers seniority, or offers a reason why any two of these names recur — a recurrence is a count, and the filings that produced it are linked beside every row. We also hold 18 institutional-holder rows on these vehicles, under 10 distinct name strings, and none of them is counted across vehicles: that table has no CIK column, and matching holders by name would merge firms that are not the same firm.