X0306 4 2013-02-27 0 0000730716 ZYGO CORP ZIGO 0001385702 MAK CAPITAL ONE LLC 590 MADISON AVENUE, 9TH FLOOR NEW YORK NY 10022 0 0 1 0 0001426156 MAK Capital Fund LP 590 MADISON AVENUE, 9TH FLOOR NEW YORK NY 10022 0 0 1 0 0001480092 MAK-ro Capital Master Fund LP C/O DUNDEE LEEDS MANAGEMENT SERVICES LTD 129 FRONT STREET HAMILTON D0 HM12 BERMUDA 0 0 1 0 0001044734 SUSSMAN S DONALD 217 COMMERCIAL STREET 5TH FLOOR PORTLAND ME 04101 0 0 1 0 0001426157 Kaufman Michael A 590 MADISON AVENUE 9TH FLOOR NEW YORK NY 10022 0 0 1 0 Common Stock 2013-02-27 4 P 0 250000 14.60 A 433890 D Reflects the transactions of securities owned directly by MAK-ro Capital Master Fund LP (the "MAK-ro Fund"). MAK Capital Fund LP ("MAK Capital Fund") directly owns 3,073,785 shares of common stock. Paloma International L.P. ("Paloma") through its subsidiary, Sunrise Partners Limited Partnership, directly owns 740,183 shares of common stock. MAK Capital One LLC ("MAK Capital One") acts as the investment manager of MAK Capital Fund, MAK-ro Fund and Paloma with respect to the securities reported herein. Michael A. Kaufman is the managing member of MAK Capital One and the controlling person of MAK Capital Fund and MAK-ro Fund. S. Donald Sussman is the controlling person of Paloma. MAK Capital One and Michael A. Kaufman may be deemed to indirectly beneficially own the shares of common stock held by MAK Capital Fund, MAK-ro Fund and Paloma. Mr. Sussman may be deemed to indirectly beneficially own the shares of common stock held by Paloma. For purposes of this Form 4, MAK Capital One, Mr. Kaufman and Mr. Sussman each disclaims beneficial ownership of the shares of common stock owned by MAK Capital Fund, MAK-ro Fund and Paloma, except to the extent of their pecuniary interest therein. Michael A. Kaufman, Managing Member of MAK CAPITAL ONE LLC 2013-03-01