Nektar Therapeutics Reports Inducement Grants Under Nasdaq Listing Rule 5635(c)(4)

SAN FRANCISCO, Aug. 28, 2026 — Nektar Therapeutics (NASDAQ: NKTR) today announced that, on August 20, 2026, the Organization and Compensation Committee of Nektar's Board of Directors granted non-qualified stock options to purchase an aggregate of 25,200 shares of its common stock and 5,000 restricted stock units (RSUs) to eleven newly-hired employees under Nektar's 2025 Inducement Plan.

Nektar's 2025 Inducement Plan was adopted by its Board of Directors on November 6, 2025 and is used exclusively for the grant of equity awards to individuals who were not previously an employee or non-employee director of Nektar (or following a bona fide period of non-employment), as an inducement material to such individual's entering into employment with Nektar, pursuant to Nasdaq Listing Rule 5635(c)(4).

The stock options have an exercise price per share equal to $74.53, which is equal to the closing price of Nektar's common stock on August 20, 2026. The stock options have an eight-year term and will vest over four years with 1/4th of the shares vesting on the one-year anniversary of the employee's grant date and 1/48th of the shares vesting monthly thereafter over the next three years, subject to each employee's continued employment with Nektar on such vesting dates. The RSUs vest over four years with 1/4th of the shares vesting following the one-year anniversary of the employee's grant date and 1/16th of the shares vesting quarterly thereafter over the next three years, subject to each employee's continued employment with Nektar on the applicable vesting dates. The stock options and RSUs are subject to the terms and conditions of Nektar's 2025 Inducement Plan, and the terms and conditions of the stock option and RSU agreement covering the grant.

About Nektar Therapeutics

Nektar Therapeutics is a clinical-stage biotechnology company focused on developing treatments that address the underlying immunological dysfunction in autoimmune and chronic inflammatory diseases. Nektar's lead product candidate, rezpegaldesleukin (REZPEG, or NKTR-358), is a novel, first-in-class regulatory T cell stimulator being evaluated in atopic dermatitis, alopecia areata, and Type 1 diabetes mellitus. Nektar's pipeline also includes preclinical bivalent tumor necrosis factor receptor type II (TNFR2) antibody and bispecific programs, NKTR-0165 and NKTR-0166, and a modified hematopoietic colony stimulating factor (CSF) protein, NKTR-422. Nektar is headquartered in San Francisco, California. For further information, visit www.nektar.com and follow us on LinkedIn.

Contacts

For Investors:

Vivian Wu 628-895-0661 [email protected]

Corey Davis, Ph.D. LifeSci Advisors 212-915-2577 [email protected]

For Media:

Susan Roberts LifeSci Communications 202-779-0929 [email protected]