STRO - NASDAQ
Sutro Biopharma, Inc.
$27.18
+11%Sutro Biopharma, Inc. operates as clinical stage drug discovery, development, and manufacturing company. It focuses on creating protein therapeutics for cancer and autoimmune disorders through integrated cell-free protein synthesis and site-specific conjugation platform, XpressCF+.The company's product candidates include STRO-001, an antibody-drug conjugate (ADC) directed against the cancer target CD74 for patients with multiple myeloma and non-Hodgkin lymphoma that is in Phase 1 clinical trials; and STRO-002, an ADC directed against folate receptor-alpha for patients with ovarian and endometrial cancers, which is in Phase 1 clinical trials. It has collaboration and license agreements with Merck Collaboration to develop research programs focusing on cytokine derivatives for cancer and autoimmune disorders; and Celgene Corporation to discover and develop bispecific antibodies and/or ADCs focused on the field of immuno-oncology. The company was formerly known as Fundamental Applied Biology, Inc. Sutro Biopharma, Inc. was incorporated in 2003 and is headquartered in South San Francisco, California.
At a Glance
Live SnapshotSEC Filings
STRO - Filing history and reports
| Filing Type | Filing Date | Period Ending | Fiscal Year | Actions |
|---|---|---|---|---|
10-Q 10-Q 2026 Q1 Q1 | May 14, 2026 | March 31, 2026 | 2026 | |
8-K 8-K 2026 N/A | May 14, 2026 | May 14, 2026 | 2026 | |
DEF 14A DEF 14A 2026 N/A | April 22, 2026 | June 05, 2026 | 2026 | |
10-K 10-K 2025 FY FY | March 23, 2026 | December 31, 2025 | 2025 | |
8-K 8-K 2026 N/A | March 23, 2026 | March 23, 2026 | 2026 | |
S-3 S-3 N/A | March 23, 2026 | March 23, 2026 | ||
8-K 8-K 2026 N/A | February 10, 2026 | February 09, 2026 | 2026 | |
8-K 8-K 2025 N/A | December 17, 2025 | December 17, 2025 | 2025 | |
8-K 8-K 2025 N/A | December 03, 2025 | December 01, 2025 | 2025 | |
8-K 8-K 2025 N/A | November 06, 2025 | November 06, 2025 | 2025 |
Understanding SEC Filings
Essential regulatory documents for investors
SEC filings are mandatory documents that publicly traded companies must submit to the Securities and Exchange Commission. These reports provide critical insights into a company's financial health, operations, risks, and strategic direction. For investors conducting due diligence, these filings are the most authoritative source of company information.
Annual Report
Comprehensive annual financial report filed within 60-90 days of fiscal year-end. Includes audited financial statements, management discussion & analysis (MD&A), risk factors, and detailed business operations. The most thorough financial disclosure of the year.
Quarterly Report
Unaudited quarterly financial report filed within 40-45 days after each of the first three fiscal quarters. Provides updates on financial position, results of operations, and significant events. Essential for tracking quarterly performance trends.
Current Report
Event-driven filing for material events that shareholders should know about, filed within 4 business days. Includes acquisitions, executive changes, bankruptcy, earnings releases, and other significant developments. Critical for staying informed about breaking news.
Proxy Statement
Definitive proxy statement sent to shareholders before annual meetings. Contains executive compensation details, board member information, voting matters, and corporate governance policies. Key for understanding management incentives and board composition.
Registration Statement
Initial registration for securities offerings, including IPOs. Provides detailed company history, business model, financial statements, risk factors, and use of proceeds. Essential for evaluating new investment opportunities and understanding company fundamentals.
Foreign Annual Report
Annual report for foreign private issuers, equivalent to Form 10-K for non-U.S. companies. Filed within 4-6 months of fiscal year-end. Contains audited financials, business description, and regulatory disclosures adapted for international companies.
Why SEC Filings Matter
- Regulatory Accuracy: Filings are subject to SEC review and legal penalties for misstatements, ensuring high data quality
- Management Insights: MD&A sections reveal management's perspective on trends, challenges, and future outlook
- Risk Assessment: Detailed risk factor disclosures help investors understand potential threats to business operations
- Competitive Analysis: Business descriptions and segment data enable comparison with industry peers
- Historical Context: Years of filings provide trend analysis and context for current performance
Research Paths
Snapshot
Start with context, operating signals, and key market metrics.
Value Model
Stress test fair value across bear, base, and bull assumptions.
Statements
Validate revenue quality, margins, and balance sheet durability.
Earnings Call
Read management commentary and compare it with reported outcomes.
Dividends
Check payout sustainability and long-term distribution behavior.
Analyst Expectations
Review consensus spread and where estimate risk is concentrated.