Mangrove Partners Discloses Letter to Rpx Corp (RPXC)’s Board; Plans to Replace Board, CEO

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The following constitutes the Schedule 13D filed by the undersigned (the “Schedule 13D”).
Item 1. Security and Issuer.
This statement relates to the Common Stock, $0.0001 par value (the “Shares”), of RPX Corporation, a Delaware corporation (the “Issuer”). The address of the principal executive offices of the Issuer is One Market Plaza, Suite 800, San Francisco, California 94105.
Item 2. Identity and Background.
(a)            This statement is filed by The Mangrove Partners Master Fund, Ltd., a Cayman Islands exempted company (the “Master Fund”), The Mangrove Partners Fund, L.P., a Delaware limited partnership (the “US Feeder”), The Mangrove Partners Fund (Cayman), Ltd., a Cayman Islands exempted company (the “Cayman Feeder”), Mangrove Partners, a Cayman Islands exempted company (“Mangrove Partners”), Mangrove Capital, a Cayman Islands exempted company (“Mangrove Capital”), and Nathaniel August. Each of the foregoing is referred to as a “Reporting Person” and collectively as the “Reporting Persons.” Each of the Reporting Persons is party to that certain Joint Filing Agreement as further described in Item 6. Accordingly, the Reporting Persons are hereby filing a joint Schedule 13D.
As the two controlling shareholders of the Master Fund, each of the US Feeder and the Cayman Feeder may be deemed to beneficially own the Shares owned by the Master Fund.  Mangrove Partners is the investment manager of each of the Master Fund, the US Feeder and the Cayman Feeder. Mangrove Capital is the general partner of the US Feeder.  Mr. August is the director of each of Mangrove Partners and Mangrove Capital.  By virtue of these relationships, each of Mangrove Partners, Mangrove Capital and Mr. August may be deemed to beneficially own the Shares owned by the Master Fund.
(b)            The principal business address of the US Feeder, Mangrove Partners, Mangrove Capital and Nathaniel August is 645 Madison Avenue, 14th Floor, New York, New York 10022. The principal business address of each of the Master Fund and the Cayman Feeder is c/o Maples Corporate Services, Ltd., PO Box 309, Ugland House, South Church Street, George Town, Grand Cayman, Cayman Islands KY1-1104. The officers and directors of the Master Fund, the Cayman Feeder, Mangrove Partners and Mangrove Capital and, to the extent that such persons are not also Reporting Persons, their principal occupations and business addresses are set forth on Schedule A and incorporated by reference in this Item 2.
(c)            The principal business of the Master Fund is acquiring, holding and disposing of investment securities. The principal business of the US Feeder is investing in the Master Fund.  The principal business of the Cayman Feeder is investing in the Master Fund.  The principal business of Mangrove Partners is serving as the investment manager of each of the Master Fund, the US Feeder and the Cayman Feeder.  The principal business of Mangrove Capital is serving as the general partner of the US Feeder.  The principal occupation of Mr. August is serving as a director for each of Mangrove Partners and Mangrove Capital.
(d)            No Reporting Person, nor any person listed on Schedule A annexed hereto, has, during the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).
(e)            No Reporting Person, nor any person listed on Schedule A annexed hereto, has, during the last five years, been party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.
(f)            Each of the Master Fund, the Cayman Feeder, Mangrove Partners and Mangrove Capital is organized as a limited liability exempted company under the laws of the Cayman Islands. The US Feeder is organized as a limited partnership under the laws of the State of Delaware. Nathaniel August is a citizen of the United States. The citizenship of the persons listed on Schedule A, who are not Reporting Persons, is set forth therein.

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