Loading
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.
1 vehicle on file, newest listing first
none appears on more than one
William S. Rosenstadt serves as the Chairman and Chief Executive Officer of Blueport Acquisition Ltd (Nasdaq: BPACU/BPAC/BPACR), a Cayman Islands-exempted blank check company that completed its initial public offering on November 12, 2025, raising $57.5 million including the full exercise of the underwriters' over-allotment option. The IPO was led by A.G.P./Alliance Global Partners as sole book-running manager, with Loeb & Loeb LLP serving as legal counsel to the Company and McDermott Will & Schulte LLP serving as underwriter's counsel. Blueport's SPAC tenor is 15 months, with 100% of IPO cash held in trust, and the company's search is not limited to a particular industry or geography. On May 1, 2026, Blueport announced a business combination agreement with SingAuto Inc, an automotive-sector target, to create a publicly listed company.
Beyond his SPAC role, Rosenstadt has been a practicing corporate and securities lawyer since 1995. He is the founding member and managing partner of Ortoli Rosenstadt LLP, an international law firm he formed in 2006. His legal career spans over three decades in corporate and securities law, providing the foundation for his leadership of Blueport's search for and execution of a business combination. He can be reached at +1 212.588.0022.
Rosenstadt earned his Juris Doctorate from Benjamin N. Cardozo School of Law in 1995 and his Bachelor of Arts from Syracuse University in 1990. The Blueport board of directors includes independent directors Yarona Yieh, a corporate and securities lawyer and partner at Ortoli Rosenstadt LLP since January 2025; Scott Silverman, founder and CEO of Thornhill Advisory Group with over 30 years of public company management experience; and Steven Sanders, a retired corporate and securities lawyer and former senior partner at Sanders, Ortoli, Vaughn-Flam, Rosenstadt LLP who retired in 2021 and currently sits on the boards of Helijet International Inc. and Avalon Globocare Corp. (Nasdaq: ALBT). The Chief Financial Officer of Blueport is Kulwant Sandher, a Chartered Professional Accountant with over 25 years of experience who also serves as President of Hurricane Corporate Services Ltd. and CFO of Norsemont Mining Inc. (TSX-V).
This record is keyed to SEC CIK 0001461959 — 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 8 institutional-holder rows on these vehicles, under 6 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.