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Sutro Biopharma, Inc.

STRO
Healthcare|Biotechnology|US
$9.62
+0.42 (+4.57%)
Cash / Share
$9.92
Financing Filings (last 12 months)
3
Shelf registrations / offering prospectuses — latest Apr 1, 2026 (424B3). Possible dilution.

Upcoming Data Readouts (2)

Dec 2027
Est. completion
P1Head and Neck Squamous Cell Carcinoma HNSCC
A Study of STRO-004 in Adults With Refractory/Recurrent Metastatic Cancer
NCT07227168n=200
Feb 2028
Est. completion
P1Head & Neck Squamous Cell Carcinoma
Phase 1 Study of STRO-006 in Adults With Refractory Solid Tumors That Are Recurrent or Metastatic
NCT07807345n=285

Recent Press Releases

Sutro Biopharma to Participate in Upcoming Investor Conferences
Nov 4, 2026 · GlobeNewsWire
Sutro Biopharma Announces First Patient Dosed in Phase 1 Trial of STRO-006, a Next-Generation ITGB6-Targeting ADC, in Advanced Solid Tumors
Oct 21, 2026 · GlobeNewsWire
Sutro Biopharma Appoints Lucas Donigian as Senior Vice President, Business Development
Sep 29, 2026 · GlobeNewsWire
Sutro Biopharma Reports Second Quarter 2026 Financial Results and Provides Early Update on STRO-004 Phase 1 Study
Aug 12, 2026 · GlobeNewsWire

SEC Filings (67)

Last two years from EDGAR. Insider Form 4s are on the Ownership tab.

FiledFormWhat it isLinks
Aug 14, 2026SC 13G/APassive 5%+ stakeDocumentIndex
Aug 14, 2026SC 13G/APassive 5%+ stakeDocumentIndex
Aug 12, 202610-QQuarterly reportDocumentIndex
Aug 12, 20268-KMaterial eventDocumentIndex
Jul 30, 2026SC 13GPassive 5%+ stakeDocumentIndex
Jun 8, 20268-KMaterial eventDocumentIndex
May 15, 2026SC 13GPassive 5%+ stakeDocumentIndex
May 15, 2026SC 13G/APassive 5%+ stakeDocumentIndex
May 14, 202610-QQuarterly reportDocumentIndex
May 14, 20268-KMaterial eventDocumentIndex
May 14, 2026SC 13G/APassive 5%+ stakeDocumentIndex
May 1, 2026SC 13GPassive 5%+ stakeDocumentIndex
Apr 22, 2026ARSAnnual report to holdersDocumentIndex
Apr 22, 2026DEFA14AProxy / shareholder voteDocumentIndex
Apr 22, 2026DEF 14AProxy / shareholder voteDocumentIndex
Apr 21, 2026SC 13G/APassive 5%+ stakeDocumentIndex
Apr 21, 2026SC 13GPassive 5%+ stakeDocumentIndex
Apr 1, 2026EFFECTDocumentIndex
Apr 1, 2026424B3Offering prospectusDocumentIndex
Mar 23, 2026S-3Shelf registrationDocumentIndex
Mar 23, 2026S-8Employee stock planDocumentIndex
Mar 23, 202610-KAnnual reportDocumentIndex
Mar 23, 20268-KMaterial eventDocumentIndex
Feb 18, 2026SC 13GPassive 5%+ stakeDocumentIndex
Feb 13, 2026SC 13G/APassive 5%+ stakeDocumentIndex
Feb 13, 2026SC 13G/APassive 5%+ stakeDocumentIndex
Feb 10, 20268-KMaterial eventDocumentIndex
Feb 10, 2026424B5Offering prospectusDocumentIndex
Jan 29, 2026SC 13G/APassive 5%+ stakeDocumentIndex
Dec 17, 20258-KMaterial eventDocumentIndex
Dec 3, 20258-KMaterial eventDocumentIndex
Nov 6, 202510-QQuarterly reportDocumentIndex
Nov 6, 20258-KMaterial eventDocumentIndex
Oct 23, 2025SC 13GPassive 5%+ stakeDocumentIndex
Sep 29, 20258-KMaterial eventDocumentIndex
Aug 14, 2025SC 13G/APassive 5%+ stakeDocumentIndex
Aug 13, 2025SC 13G/APassive 5%+ stakeDocumentIndex
Aug 7, 202510-QQuarterly reportDocumentIndex
Aug 7, 20258-KMaterial eventDocumentIndex
Jul 29, 2025SC 13G/APassive 5%+ stakeDocumentIndex