It’s been in the works for a while, and now ink has met page on RXR’s purchase of the Helmsley Building at 230 Park Ave from Monday Properties and Invesco for $1.2B.

The 34-story, 1.4M SF trophy office building is just the latest in a year that’s seen several 10-figure office building trades. Monday and Whitehall Real Estate picked up the building in 2007 for $1.15B, and in 2011, Invesco took over the minority stake from Whitehall. Almost $200M has gone into modernization efforts since 2002. RXR chairman and CEO Scott Rechler tells the Wall Street Journal he intends to invest even more in the building to create more retail and office space. Scott will be keynoting Bisnow’s 6th Annual NYC Capital Markets Summit on June 10.

EXECS

Aaron Meyerson WiredScore has brought on Aaron Meyerson as its new director of business operations. He’ll support WiredScore’s national expansion efforts. Before joining WiredScore, Aaron was AVP at the NYCEDC.

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Cushman & Wakefield has brought on Laurence Carroll as a senior associate in its NYC office. Prior to joining Cushman, Laurence was a broker with Vortex Group, where he focused on repping tenants. Before that, he was a commercial construction project manager. Laurence relocated to the US from Ireland in 2007.

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HAP Investments has brought on Doni Blumenthal as a financial analyst. Doni comes to HAP from Meridian Capital, where he had a hand in arranging $950M in commercial real estate financing deals.

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Avison Young’s promoting three junior members of its NYC office to the rank of director. David Cohen, Peter Rotchford and Amanda Saltzman each joined the firm about two and a half years ago. They’ll work in a range of capacities, from leasing brokerage to arranging financing.