1. Sutro Biopharma granted stock options and RSUs to new employees. 2. 24,500 shares in stock options and 2,000 RSUs were issued. 3. Grants aim to attract talent, approved per Nasdaq rules. 4. One-fourth of options vest after one year, monthly thereafter. 5. Sutro develops innovative antibody-drug conjugates for oncology.
FAQ
Why Neutral?
The employee stock option grants indicate operational growth but do not directly affect short-term sales or profits. Historically, similar initiatives have not had immediate positive impacts on share prices.
How important is it?
Talent acquisition is essential for innovation, but this muted news may not attract significant market attention. Stock option grants often reflect positive long-term sentiment but lack immediate financial implications.
Why Short Term?
The short-term effects may be neutral as stock options don't immediately translate to company performance. However, talent acquisition can improve innovation and pipeline developments in the long run.
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SOUTH SAN FRANCISCO, Calif., Dec. 16, 2025 (GLOBE NEWSWIRE) -- Sutro Biopharma, Inc. (Sutro or the Company) (NASDAQ:STRO), a clinical-stage oncology company pioneering site-specific and novel-format antibody drug conjugates (ADCs), today announced that on December 15, 2025, the Compensation Committee of Sutro's Board of Directors granted stock options to purchase 24,500 shares of Sutro common stock and 2,000 restricted stock units (RSUs) to new non-executive employees. The grants were made as an inducement material to the employees' acceptance of employment with Sutro and were approved by the Compensation Committee of Sutro's Board of Directors in accordance with Nasdaq Listing Rule 5635(c)(4).
The stock options and RSUs are subject to the terms and conditions of Sutro's Amended and Restated 2021 Equity Inducement Plan. One-fourth of the total number of shares underlying the stock options will vest on the one-year anniversary of the employee's hire date and monthly thereafter until fully vested on the fourth anniversary, subject to the employee's continued service with Sutro on each such vesting date. One-fourth of the total number of shares subject to the RSUs will vest on the one-year anniversary of the employee's hire date and annually thereafter until fully vested on the fourth anniversary, subject to the employee's continued service with Sutro on each such vesting date.
About Sutro Biopharma
Sutro Biopharma, Inc. is advancing a next-generation antibody-drug conjugate (ADC) platform designed to deliver single- and dual-payload ADCs that enable meaningful breakthroughs for patients with cancer. By fully optimizing the antibody, linker, and payload, Sutro's cell-free platform produces ADCs that are engineered to improve drug exposure, reduce side effects, and expand the range of treatable tumor types. With unique capabilities in dual-payload ADCs, Sutro aims to overcome treatment resistance and redefine what's possible in cancer therapy. The Company's pipeline of single- and dual-payload ADCs targets large oncology markets with limited treatment options and significant need for improved therapies. For more information, follow Sutro on social media @Sutrobio or visit www.sutrobio.com.
Investor Contact
Emily White
Sutro Biopharma
(650) 823-7681
ewhite@sutrobio.com
Media Contact
Amy Bonanno
Lyra Strategic Advisory
abonanno@lyraadvisory.com
