-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, UpfUIpjVCGyaGMRZ6MWP/Iu2LV6vascsTf5fMI7jsh5iLnSq7h//5LiNXJNyNm+D T6veEBHdcNnSo6yA8avwug== 0001181431-10-003136.txt : 20100114 0001181431-10-003136.hdr.sgml : 20100114 20100114180842 ACCESSION NUMBER: 0001181431-10-003136 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20100113 FILED AS OF DATE: 20100114 DATE AS OF CHANGE: 20100114 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: YAKOBSON DENNIS CENTRAL INDEX KEY: 0001186848 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-15795 FILM NUMBER: 10528459 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: RENTECH INC /CO/ CENTRAL INDEX KEY: 0000868725 STANDARD INDUSTRIAL CLASSIFICATION: AGRICULTURE CHEMICALS [2870] IRS NUMBER: 840957421 STATE OF INCORPORATION: CO FISCAL YEAR END: 0930 BUSINESS ADDRESS: STREET 1: 10877 WILSHIRE BLVD, #710 CITY: LOS ANGELES STATE: CA ZIP: 90024 BUSINESS PHONE: 310-571-9800 MAIL ADDRESS: STREET 1: 10877 WILSHIRE BLVD, #710 CITY: LOS ANGELES STATE: CA ZIP: 90024 4 1 rrd262936.xml FORM 4 X0303 4 2010-01-13 0 0000868725 RENTECH INC /CO/ RTK 0001186848 YAKOBSON DENNIS 1331 17TH STREET SUITE 720 DENVER CO 80202 1 0 0 0 Common Stock 20000 I By reporting person as UGMA custodian. Common Stock 2010-01-13 4 S 0 19000 1.24 D 529904 D Option to Purchase Common Stock 3.35 2007-03-22 2012-04-12 Common Stock 15000 15000 D Option to Purchase Common Stock 2.68 2008-03-22 2013-03-21 Common Stock 15000 15000 D Option to Purchase Common Stock 1.39 2009-04-17 2014-04-16 Common Stock 15000 15000 D Option to Purchase Common Stock .60 2015-05-27 Common Stock 15000 15000 D Option to Purchase Common Stock 1.62 2015-09-29 Common Stock 100000 100000 D Shares held by reporting person for the following family members under Uniform Gifts to Minors Act. The reporting person granted 1,000 shares each to: Caroline Cisler, Clair Cisler, Trevor Hansen, Richard N. Bjorklund, Heather Bjorklund, Bridget Bjorklund, Chad Yakobson, Brittney Yakobson, Kendra Yakobson, Logan Yakobson, Jayson Yakobson, William Nickell, Mathew Nickell and Lauren Nickell. The reporting person granted 3,000 shares to each of Andrew Ziegler and Kathryn Ziegler. The reporting person disclaims beneficial ownership of these shares, and this report shall not be deemed an admission that the reporting person is the beneficial owner of these shares for the purposes of Section 16 or for any other purposes. The option vests on May 28, 2010, subject to the reporting person's continued service on the Company's board of directors, provided that the option shall be fully vested as of the date of the Company's 2010 Annual Meeting of Shareholders. The option vests on September 29, 2010, subject to reporting person's continued service on the board of directors or to the Company on such date. The sale reported on this form was effected pursuant to a 10b5-1 trading plan that was established on August 26, 2009. A 10b5-1 trading plan enables an insider to establish a program to make transactions according to an advance plan. Such a program allows an insider to continue with planned transactions even if he or she comes into possession of material nonpublic information. /s/ Colin M. Morris, by Power of Attorney 2010-01-14 EX-24.1 2 rrd235357_265817.htm POWER OF ATTORNEY rrd235357_265817.html 
SECTION 16
CONFIRMING STATEMENT
      This Statement confirms that the undersigned, Dennis L. Yakobson, has authorized and
designated each of Colin M. Morris and Nicole Sykes (for so long as Mr. Morris and Ms. Sykes
continue to serve as legal counsel to Rentech, Inc.) to execute and file on behalf of the
undersigned, Forms 3, 4, and 5 (including any amendments thereto) that the undersigned may be
required to file with the United States Securities and Exchange Commission in connection with
the undersigned's ownership, acquisition, or disposition of securities of Rentech, Inc.  The
authority under this Statement shall remain in full force and effect until the undersigned is no
longer required to file Forms 3, 4, and 5 with respect to the undersigned's ownership of or
transactions in securities of Rentech, Inc., unless earlier revoked by the undersigned in writing.
The undersigned acknowledges that Colin M. Morris, Nicole Sykes and Rentech, Inc. are not
assuming any of the undersigned's responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.

      Dated: 11/11/08
      /s/ Dennis L. Yakobson
      Print Name: Dennis L. Yakobson
-----END PRIVACY-ENHANCED MESSAGE-----