Power of Attorney for Linda Rubinstein

This filing is an Ex-24 Power of Attorney document. Linda Rubinstein, an executive officer of Nektar Therapeutics (Interim CFO), has authorized Elizabeth Zhang, Vice President, Legal and Corporate Counsel, to execute and file Forms 3, 4, and 5 with the SEC on her behalf. This authorization pertains to her beneficial ownership of securities in the Company and remains in effect until she is no longer required to file these forms or until she revokes it in writing. The document clarifies that neither the attorney-in-fact nor the Company assumes Rubinstein's responsibilities for Section 16 compliance.