1 EXHIBIT 10.29 REGISTRATION RIGHTS AGREEMENT Agreement dated as of April 19, 1995, between CIBA-GEIGY LIMITED of Klybeckstrasse 141, 4002 Basel Switzerland (the "Holder") and ONCOGENE SCIENCE, INC. of 106 Charles Lindbergh Boulevard, Uniondale, New York 11553-3649, USA (the "Company") WHEREAS, Holder is a holder of the common stock, par value $.01 per share, of the Company ("Common Stock"); WHEREAS, Holder desires to have certain registration rights under the securities laws, and the Company desires that Holder have such registration rights; NOW, THEREFORE, in consideration of the mutual agreements contained herein and other good and valuable consideration, the parties hereby agree as follows: 1. At such time as the Company shall determine to file any registration statement, or any post-effective amendment to a registration statement, under the Securities Act of 1933 (the "Act"), covering equity securities of the Company (other than registration statements on Form S-8 or S-4 or any other form not generally available for the registration of securities for sale to the public) for its own account or for the account of others, the Company shall advise Holder, by written notice at least 14 business days prior to any filing, and shall, upon the request of the Holder, and at the expense of the Company, include in any such 2 registration statement, or any such post-effective amendment to a registration statement, all of the Registrable Securities (as hereinafter defined) that Holder has requested in writing to be registered, provided that such written request is delivered to the Company within 10 business days of the Holder's receipt of notice from the Company. As used in this Agreement, Registrable Securities shall mean (i) the Common Stock purchased or owned by the Holder, and (ii) any Common Stock of the Company issued as (or issuable upon the conversion or exercise of any convertible security, options, warrant right or other security which is issued as) a dividend or other distribution with respect to, or in exchange for or in replacement of such Common Stock. All costs and expenses of such registration statement shall be borne by the Company, except underwriting discounts or commissions applicable to any of the Registrable Securities sold by the Holder. The Company shall not be required to register securities of the Holder on more than two occasions; provided that if the Holder has been prevented from selling all of the Common Stock it wished to sell because of limitations imposed under paragraph (c) of this Section 1, then the Holder shall be entitled to include such Common Stock in one or more additional registration statements under the terms of this Section 1 until the Holder has been able to sell all of the Common Stock it wished to sell. (a) The Company shall supply prospectuses and such other documents as Holder may reasonably request in order to facilitate the public sale or other disposition of the Registrable Securities, use its best efforts to register and qualify any of the Registrable Securities for sale in such reasonable number of states as Holder designates and do any and all other acts and things which may be necessary or desirable to enable Holder to -2- 3 consummate the public sale or other disposition of the Registrable Securities subject to the rights of others with similar rights. The Company agrees to maintain such registration statement or post-effective amendment with respect to the Registrable Securities current under the Act as to the Registrable Securities for a period of at least six months, and an additional three months upon written request of Holder. (b) The Company shall also furnish indemnification in the manner provided in Section 2 hereof, except that the maximum amount of such indemnification shall be limited to the net amount of proceeds received by Holder from the sale of the Registrable Securities. Holder shall furnish information and indemnification as set forth in Section 2 hereof, except that the maximum amount which may be recovered from Holder shall be limited to the net amount of proceeds received by Holder from the sale of the Registrable Securities. (c) In connection with any offering involving an underwriting of shares of the Company's Common Stock, the Company shall not be required under Section 1 hereof to include any of the Holder's securities in such underwriting unless they accept the terms of the underwriting as agreed upon between the Company and the underwriters selected by it (or by other persons entitled to select the underwriters), and then only in such quantity as the underwriters determine in their sole discretion will not jeopardize the success of the offering by the Company. If the total amount of securities, including Registrable Securities, requested by stockholders to be included in such offering exceeds the amount of securities sold other than by the Company that the underwriters determine in their sole discretion is compatible -3- 4 with the success of the offering, then the Company shall be required to include in the offering only that number of such securities, including Registrable Securities, which the underwriters determine in their sole discretion will not jeopardize the success of the offering (the securities so included to be apportioned pro rata, subject to prior existing rights, among the selling stockholders according to the total amount of securities entitled to be included therein owned by each selling stockholder or in such other proportions as shall mutually be agreed to by such selling stockholders). 2. (a) Whenever pursuant to Section 1, a registration statement relating to any of the Registrable Securities is filed under the Act, amended or supplemented, the Company shall, to the extent permitted by law, indemnify and hold harmless Holder, and each person, if any, who controls (within the meaning of the Act) Holder, and each underwriter (within the meaning of the Act) of such securities and each person, if any, who controls (within the meaning of the Act) any such underwriter, against such losses, claims, damages, liabilities or actions, joint or several, to which Holder, any such controlling person or any such underwriter may become subject, under the Act or otherwise, insofar as such losses, claims, damages, liabilities or actions in respect thereof, arise out of or are based upon any untrue statement or alleged untrue statement of any material fact contained in any such registration statement or any preliminary prospectus or final prospectus constituting a part thereof or any amendment or supplement thereto, or arise out of or are based upon the omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, and shall reimburse Holder and each such controlling person and -4- 5 underwriter for any legal or other expenses reasonably incurred by Holder or such controlling person or underwriter in connection with investigating or defending any such losses, claims, damages, liabilities or actions; provided, however, that the Company will not be liable in any such case to the extent that any such losses, claims, damages, liabilities or actions arise out of or are based upon an untrue statement or alleged untrue statement or omission or alleged omission made in said registration statement, said preliminary prospectus, said final prospectus or said amendment or supplement in reliance upon and in conformity with written information furnished by Holder or any other underwriter, for use in the preparation thereof. (b) Holder shall indemnify and hold harmless the Company, each of its directors, each of its officers and each person, if any, who controls the Company within the meaning of the Act against any losses, claims, damages, liabilities or actions, to which the Company or any such director, officer or controlling person may become subject, under the Act or otherwise, insofar as such losses, claims, damages, liabilities or actions arise out of or are based upon any untrue or alleged untrue statement of any preliminary prospectus, said final prospectus, or said amendment or supplement, or arise out of or are based upon the omission or the alleged omission to state therein a material fact required to be stated therein or necessary to make the statement therein not misleading in each case to the extent, but only to the extent, that such untrue statement or alleged untrue statement or omission or alleged omission was made in said registration statement, said preliminary prospectus, said final prospectus or said amendment or supplement in reliance upon and in conformity with written information furnished by Holder for use in the preparation thereof; and shall reimburse the -5- 6 Company or any such director, officer or controlling person for any legal or other expenses reasonably incurred by them in connection with investigating or defending any such losses, claims, damages, liabilities or actions. (c) Promptly after receipt by an indemnified party under this Section 2 of notice of the commencement of any action, such indemnified party shall, if a claim in respect thereof is to be made against any indemnifying party, give the indemnifying party notice of the commencement thereof; but the omission to so notify the indemnifying party shall not relieve it from any liability which it may have to an indemnified party otherwise than under this Section 2. (d) In case any such action is brought against any indemnified party, and it notifies an indemnifying party of the commencement thereof, the indemnifying party shall be entitled to participate in, and, to the extent that it may wish, jointly with any other indemnifying party similarly notified, to assume the defense thereof, with counsel reasonably satisfactory to such indemnified party, and after notice from the indemnifying party to such indemnified party, the indemnifying party shall not be liable to such indemnified party under this Section 2 for any legal or other expenses subsequently incurred by such indemnified party in connection with the defense thereof, other than reasonable costs of investigation. (e) To the extent any indemnification by an indemnifying party is prohibited or limited by law, the indemnifying party agrees to make the maximum -6- 7 contribution with respect to any amounts for which it would otherwise be liable under this Section 2 to the extent permitted by law, provided that (i) no contribution shall be made under circumstances where the indemnifying party would not have been liable for indemnification under the fault standards set forth in this Section 2, (ii) no seller of Registrable Securities guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Act) shall be entitled to contribution from any seller of Registrable Securities who was not guilty of such fraudulent misrepresentation and (iii) contribution by Holder shall be limited in amount to the net amount of proceeds received by him from the sale of the Registrable Securities. 3. The provisions of Section 12. of the Agreement between the Company and the Holder dated the date hereof shall be applicable to this agreement as if fully set forth herein. -7- 8 IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement as of the date first above written. ONCOGENE SCIENCE, INC. By: ------------------------------- Title: ---------------------------- CIBA-GEIGY LIMITED By: ------------------------------- ----------------------------- Title: ---------------------------- ----------------------------- -8-