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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.
1 liquidated — weigh against the wins.
1 vehicle on file, newest listing first
Michael Rubenstein—Director . Mr. Rubenstein has agreed to serve as a member of our board of directors. He is an entrepreneur and executive who played a key role in building AppNexus, which was acquired by AT&T in 2018, and DoubleClick, which was acquired by Google in 2008. Mr. Rubenstein specializes in marketplace strategy, win-win partnerships, developing talent, and building high-performing go-to-market organizations that create global impact. At AT&T, he served as President of AppNexus (re-branded Xandr), where he oversaw go-to-market for the company’s digital ad platform. Prior to AT&T, Mr. Rubenstein spent nearly a decade as President and Board member at AppNexus, and was a chief architect of the company’s growth from startup to a leader in programmatic advertising. Prior to joining AppNexus, Mr. Rubenstein founded and served as General Manager of DoubleClick Ad Exchange, a leading marketplace for programmatic advertising, after joining DoubleClick through the acquisition of Toronto-based smartech startup FloNetwork, later re-branded DARTmail. Mr.
This record is keyed to SEC CIK 0001829146 — 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 35 institutional-holder rows on these vehicles, under 17 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.