Exec Moves:

Gramercy Capital Corp. appointed Timothy O'Connor as president of the company. His particular focus will be completing the integration of its Gramercy Realty unit into the company and producing greater operational efficiencies, among other responsibilities. Most recently, he was COO of iStar Financial, and has held positions at Morgan Stanley, Greystone Realty Corp. and Exxon.

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Kimco Realty Corp. announced a slew of new appointments: David Henry was promoted to president and David Lukes to COO, succeeding current president & COO Michael Flynn, who is retiringeffective December 31. David Henry will continue to act as vice chairman and chief investment officer, while Milton Cooper will continue to serve as chair & CEO. Michael Pappagallo, the firm's CFO, has also been appointed chief administrative officer in addition to his current role.

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Strook & Strook & Lavan partner Robert Abrams was appointed to the United Nations Development Corp., which develops office and residential facilities for UN personnel and related organizations, byGovernor David Paterson. Robert served as NY Attorney Generalfrom 1979-1993 and Bronx Borough President from 1970-1979, among other positions.

Lease Transactions:

Nature Publishing Group signed an eight-year lease renewal andexpansion for 16.5k SF at One Hudson Square, bringing its total occupancy to 69.6k SF. Williams Real Estate's Leon Manoffrepresented the tenant, while Cushman & Wakefield's Robert Constable represented landlord Trinity Church. Asking rents in the building are in the low $50 PSF range.

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H&M inked a 15-year, 29.6k-SF retail lease at 497 Fulton St. in Brooklyn. The lease is for ground-floor and lower-level space, located on the Fulton Street Mall between Hoyt and Bridge Streets. Cushman & Wakefield Retail Services' Robert Gibson, Thomas Citron and Molly Beal represented the tenant in site search and lease negotiations with the owner, the Laboz Family.

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Online advertising and lead generation firm Yodel signed a 23k-SFlease at 50 West 23rd St. CB Richard Ellis' Sloane Rhulenrepresented the tenant, while Newmark Knight Frank's Michael Dreizen and Andrew Udis repped owner Moinian Group.

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Recruitment consultancy firm Huxley Associates amended its lease to double its space at 1270 Avenue of the Americas for a total of8,400 SF. CresaPartners' Scott Savin and Ed Wartels represented the tenant, while Todd Silverman represented owner Tishman-Speyer in-house.

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Bollman Hat Company brand Helen Kaminski inked a six-year, 2,565-SF expansion at 411 Fifth Ave., bringing its total lease to19.4k SF. Adams & Co.'s David Levy represented the tenant and undisclosed landlord. Although lease terms were not released, the asking rent was $42 PSF.