-----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, CSaL6hjEdd7ckVNcD6mjAdq1whIx4AFtGUGIyEHI1DhYA/1NQLE5AngFiCKD5Nwu jY2gixJ+YMoFCCdXOie4LQ== 0001104659-07-060207.txt : 20070808 0001104659-07-060207.hdr.sgml : 20070808 20070808155117 ACCESSION NUMBER: 0001104659-07-060207 CONFORMED SUBMISSION TYPE: 3 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20070802 FILED AS OF DATE: 20070808 DATE AS OF CHANGE: 20070808 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: IMCLONE SYSTEMS INC CENTRAL INDEX KEY: 0000765258 STANDARD INDUSTRIAL CLASSIFICATION: BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836] IRS NUMBER: 042834797 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 180 VARICK STREET - 6TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10014 BUSINESS PHONE: 646-638-5078 MAIL ADDRESS: STREET 1: 180 VARICK STREET - 6TH FLOOR CITY: NEW YORK STATE: NY ZIP: 10014 FORMER COMPANY: FORMER CONFORMED NAME: IMCLONE SYSTEMS INC/DE DATE OF NAME CHANGE: 19940211 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: WITTE LARRY CENTRAL INDEX KEY: 0001260930 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 000-19612 FILM NUMBER: 071035602 BUSINESS ADDRESS: STREET 1: IMCLONE SYSTEMS INC. STREET 2: 180 VARICK ST. CITY: NEW YORK STATE: NY ZIP: 10014 3 1 a3.xml 3 X0202 3 2007-08-02 0 0000765258 IMCLONE SYSTEMS INC IMCL 0001260930 WITTE LARRY IMCLONE SYSTEMS INCORPORATED 180 VARICK STREET NEW YORK NY 10014 0 1 0 0 SVP, Research Common Stock 29000 D Stock Options (Right to Buy) 36.70 2008-07-02 2017-07-02 Common Stock 36000 D /S/ DANIEL J. O'CONNOR, BY POWER OF ATTORNEY 2007-08-08 EX-24.1 2 ex-24d1.htm EX-24.1

Exhibit 24.1

POWER OF ATTORNEY

Know all by these present, that the undersigned hereby constitutes and appoints Daniel J. O’Connor, signing singly, the undersigned’s true and lawful attorney-in-fact to:

1.                           execute for and on behalf of the undersigned, in the undersigned’s capacity as an officer and/or director of ImClone Systems Incorporated (the “Company”), Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder;

2.                           do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete, execute and timely file such Form 3, 4, or 5 with the United States Securities and Exchange Commission and any stock exchange or similar authority; and

3.                           take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact’s discretion.

The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact’s substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned’s responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.

This Power of Attorney 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 holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 2nd day of August, 2007.

/s/ Larry Witte                                                  
Signature
Larry Witte


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