Sutro Biopharma Announces First Patient Dosed in Phase 1 Trial of STRO-006, a Next-Generation ITGB6-Targeting ADC, in Advanced Solid Tumors

— STRO-006 is Sutro's second wholly-owned ADC to enter the clinic in less than one year —       — Initial clinical data expected in the second half of 2027 — SOUTH SAN FRANCISCO, Calif., Oct. 21, 2026 (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 the first patient has been dosed in its Phase 1 trial of STRO-006 in patients with a range of solid tumors.

GlobeNewsWire • Oct 21, 2026

Sutro Biopharma Appoints Lucas Donigian as Senior Vice President, Business Development

SOUTH SAN FRANCISCO, Calif., Sept. 29, 2026 (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 the appointment of Lucas Donigian as Senior Vice President, Business Development, effective September 28, 2026.

GlobeNewsWire • Sep 29, 2026

Sutro Biopharma Reports Second Quarter 2026 Financial Results and Provides Early Update on STRO-004 Phase 1 Study

– Encouraging early clinical activity i ncluding confirmed and ongoing unconfirmed partial responses with favorable tolerability, and pharmacokinetics (PK) observed in ongoing STRO-004 Phase 1 study – – Strong execution of STRO-004 STRIVE-01 study with rapid enrollment of initial dose escalation cohorts within 7 months; dose optimization ongoing between 4-5 mg/kg – –   STRO-006, next-generation integrin 6 (ITGB6)-targeting ADC, is on track to enter the clinic in the third quarter of 2026 – – Second dual-payload iADC program from Sutro's platform under Astellas collaboration expected to enter the clinic in the second half of 2026 – – Strong balance sheet with $164.3 million in cash, cash equivalents and marketable securities as of June 30, 2026, expected to support operations into at least the second quarter of 2028 – SOUTH SAN FRANCISCO, Calif., Aug. 12, 2026 (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 reported its financial results for the second quarter ended June 30, 2026 and recent business highlights.

GlobeNewsWire • Aug 12, 2026

Why is Sutro Biopharma Stock Falling On Wednesday?

Sutro Biopharma, Inc. (NASDAQ:STRO) shares are trading lower on Wednesday as the company faces challenges following its recent update on the STRO-004 Phase 1 study.

Benzinga • Aug 12, 2026

Sutro Biopharma Reports First Quarter 2026 Financial Results and Business Highlights

– On track to report initial safety, PK and early activity from Phase 1 dose-escalation trial of STRO-004, potential best-in-class Tissue Factor ADC, in mid-2026 – – Continued advancement of wholly-owned pipeline, including ITGB6 ADC STRO-006 and dual-payload PTK7 program STRO-227, with IND submissions planned in 2026 – – First dual-payload iADC from Sutro's platform entered the clinic under Astellas collaboration; patient dosing underway – – Strong balance sheet with $202.6 million in cash, cash equivalents and marketable securities as of March 31, 2026; including gross proceeds from the recent capital raise, supporting operations into at least the second quarter of 2028 – SOUTH SAN FRANCISCO, Calif., May 14, 2026 (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 reported its financial results for the first quarter of 2026 and recent business highlights.

GlobeNewsWire • May 14, 2026

Sutro Biopharma (STRO) Moves 7.4% Higher: Will This Strength Last?

Sutro Biopharma (STRO) witnessed a jump in share price last session on above-average trading volume. The latest trend in earnings estimate revisions for the stock suggests that there could be more strength down the road.

Zacks Investment Research • Apr 8, 2026

Sutro Biopharma Reports Full Year 2025 Financial Results and Business Highlights

– Dosed three cohorts in Phase 1 trial of STRO-004, potential best-in-class Tissue Factor (TF) ADC; on track to report initial clinical data in mid-2026 –

GlobeNewsWire • Mar 23, 2026

Sutro Biopharma: ADC Developer With Poor Track Record Aims For Positive 2026

Sutro Biopharma is an early-stage ADC developer, trading at a $406m market cap after a strong 6-month rally. STRO's pipeline centers on next-generation ADCs, with lead candidate STRO-004 in Phase 1 and key data expected mid-2026. Strategic partnerships, notably with Astellas, offer milestone potential, but past alliances (Ipsen, BMY, EMD Serono) have lapsed.

Seeking Alpha • Mar 13, 2026

Sutro Biopharma to Participate in Upcoming Investor Conferences

SOUTH SAN FRANCISCO, Calif., Feb. 25, 2026 (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 management will participate in several upcoming investor conferences.

GlobeNewsWire • Feb 25, 2026

Sutro Biopharma (STRO) Surges 11.9%: Is This an Indication of Further Gains?

Sutro Biopharma (STRO) witnessed a jump in share price last session on above-average trading volume. The latest trend in earnings estimate revisions for the stock doesn't suggest further strength down the road.

Zacks Investment Research • Feb 11, 2026