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Sutro Biopharma Inc (STRO)
NASDAQ:STRO
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Sutro Biopharma (STRO) AI Stock Analysis

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STRO

Sutro Biopharma

(NASDAQ:STRO)

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Neutral 42 (OpenAI - 5.2)
Rating:42Neutral
Price Target:
$21.50
▼(-6.03% Downside)
Action:Reiterated
Date:07/21/26
STRO scores low primarily due to weak financial performance—large ongoing losses, heavy cash burn, negative equity, and a sharply contracting/volatile revenue profile. Technicals add downside pressure with a bearish trend across key moving averages and negative MACD (despite oversold readings). Valuation provides limited support because the negative P/E reflects loss-making operations and there is no dividend yield data.
Positive Factors
Proprietary cell-free protein synthesis platform
Sutro’s cell-free synthesis and site-specific conjugation is a durable technical moat for engineering ADCs and engineered antibodies. A platform-based model supports repeated program creation, faster iteration and attractive partnering/licensing economics that persist beyond short-term cycles.
Negative Factors
Large negative operating and free cash flow
Sustained ~-$152M annual cash burn is a durable constraint on operations and forces dependence on external financing or dilutive transactions. This level of negative cash flow limits the company’s ability to self-fund multiple programs and increases execution risk over the next 2–6 months without new capital or major partnership receipts.
Read all positive and negative factors
Positive Factors
Negative Factors
Proprietary cell-free protein synthesis platform
Sutro’s cell-free synthesis and site-specific conjugation is a durable technical moat for engineering ADCs and engineered antibodies. A platform-based model supports repeated program creation, faster iteration and attractive partnering/licensing economics that persist beyond short-term cycles.
Read all positive factors

Sutro Biopharma (STRO) vs. SPDR S&P 500 ETF (SPY)

Sutro Biopharma Business Overview & Revenue Model

Company Description
Sutro Biopharma, Inc. is a clinical-stage biotechnology company focused on the discovery, development, and manufacturing of innovative therapeutic products. Its primary objective is to create protein-based treatments for challenging conditions lik...
How the Company Makes Money
Sutro Biopharma primarily generates revenue through (1) collaboration and license agreements and (2) other related research and development services performed for partners; it does not rely on recurring product sales in the way a commercial-stage ...

Sutro Biopharma Financial Statement Overview

Summary
Despite very strong gross margins (~98%), STRO’s fundamentals are weak: deeply negative profitability (TTM net margin ~-186%), highly volatile/contracting revenue (TTM down ~281% vs. prior period), negative operating and free cash flow (~-$151.6M and ~-$152.1M), and a materially weakened balance sheet with stockholders’ equity turning negative (~-$66.9M). Modest total debt (~$13.6M) helps, but ongoing cash burn and negative equity elevate funding and financial-risk concerns.
Income Statement
23
Negative
Balance Sheet
31
Negative
Cash Flow
18
Very Negative
BreakdownTTMDec 2025Dec 2024Dec 2023Dec 2022Dec 2021
Income Statement
Total Revenue99.61M102.48M62.04M153.73M67.77M61.88M
Gross Profit98.33M95.16M54.83M146.91M59.48M52.11M
EBITDA-106.12M-145.65M-180.45M-67.92M-105.07M-97.56M
Net Income-153.60M-191.09M-227.46M-106.79M-119.20M-105.54M
Balance Sheet
Total Assets241.99M173.83M387.21M470.74M406.94M341.41M
Cash, Cash Equivalents and Short-Term Investments202.56M141.43M316.89M375.62M334.36M197.94M
Total Debt13.63M15.67M23.15M33.63M55.02M57.37M
Total Liabilities308.88M306.28M342.61M321.09M189.90M88.84M
Stockholders Equity-66.89M-132.45M44.60M149.65M217.05M252.56M
Cash Flow
Free Cash Flow-152.14M-178.93M-194.64M-115.93M-4.31M-97.00M
Operating Cash Flow-151.61M-177.23M-191.54M-111.62M3.55M-81.68M
Investing Cash Flow16.01M45.01M218.51M-3.92M-35.02M-97.31M
Financing Cash Flow103.05M44.00K94.05M137.55M48.31M3.26M

Sutro Biopharma Technical Analysis

Technical Analysis Sentiment
Negative
Last Price22.88
Price Trends
50DMA
27.64
Negative
100DMA
28.85
Negative
200DMA
20.71
Positive
Market Momentum
MACD
-1.92
Positive
RSI
34.03
Neutral
STOCH
16.71
Positive
Evaluating momentum and price trends is crucial in stock analysis to make informed investment decisions. For STRO, the sentiment is Negative. The current price of 22.88 is below the 20-day moving average (MA) of 25.85, below the 50-day MA of 27.64, and above the 200-day MA of 20.71, indicating a neutral trend. The MACD of -1.92 indicates Positive momentum. The RSI at 34.03 is Neutral, neither overbought nor oversold. The STOCH value of 16.71 is Positive, not indicating any strong overbought or oversold conditions. Overall, these indicators collectively point to a Negative sentiment for STRO.

Sutro Biopharma Risk Analysis

Sutro Biopharma disclosed 78 risk factors in its most recent earnings report. Sutro Biopharma reported the most risks in the "Tech & Innovation" category.
Finance & Corporate - Financial and accounting risks. Risks related to the execution of corporate activity and strategy
Latest Risks Added 0 New Risks

Sutro Biopharma Peers Comparison

Overall Rating
UnderperformOutperform
Sector (51)
Financial Indicators
Name
Overall Rating
Market Cap
P/E Ratio
ROE
Dividend Yield
Revenue Growth
EPS Growth
60
Neutral
$384.77M-2.92-50.68%-12.37%19.59%
59
Neutral
$287.05M-4.30-20.31%8.21%21.41%
51
Neutral
$7.86B-0.30-43.30%2.27%22.53%-2.21%
50
Neutral
$269.48M-1.41-33.22%215.59%22.48%
49
Neutral
$518.11M-2.46-44.39%-79.06%-397.92%
43
Neutral
$133.55M-1.0065.27%4.43%27.41%
42
Neutral
$400.51M-1.47192.77%49.94%44.76%
* Healthcare Sector Average
Performance Comparison
Ticker
Company Name
Price
Change
% Change
STRO
Sutro Biopharma
24.17
15.90
192.23%
ARVN
Arvinas Holding Company
8.03
0.50
6.64%
BCYC
Bicycle Therapeutics
3.86
-4.19
-52.05%
ADCT
ADC Therapeutics
1.05
-1.68
-61.54%
CCCC
C4 Therapeutics
3.48
1.38
65.71%
OABI
OmniAb
1.98
0.03
1.54%

Sutro Biopharma Corporate Events

Executive/Board ChangesShareholder Meetings
Sutro Biopharma Shareholders Back Board, Pay and Auditor
Positive
Jun 8, 2026
On June 5, 2026, Sutro Biopharma held its 2026 Annual Meeting of Stockholders, where shareholders elected three Class II directors, Jane Chung, Connie Matsui, and James Panek, each to serve a three-year term ending at the 2029 Annual Meeting. The ...
Glossary
BuyA stock rated as a "Buy" is expected to perform better than the overall market or a specific benchmark over the near-to-medium term. This rating suggests the stock is likely to deliver higher returns compared to other stocks in the same sector or market index. Note: This is not investment advice; please consult a financial advisor before making investment decisions.
HoldA stock rated as a "Hold" is expected to perform in line with the overall market or a specific benchmark. This rating indicates that the stock is neither particularly compelling nor unfavorable for investment. Note: This is not investment advice; please consult a financial advisor before making investment decisions.
SellA stock rated as a "Sell" is expected to perform worse than the overall market or a specific benchmark over the near-to-medium term. This rating suggests the stock may deliver lower returns compared to other stocks in the same sector or market index. Note: This is not investment advice; please consult a financial advisor before making investment decisions.

Disclaimer

This AI Analyst Stock Report is automatically generated by our AI systems using advanced algorithms and publicly available financial, technical, and market data. While the information provided aims to be accurate and insightful, it is intended for informational purposes only and should not be considered financial advice. Any content created by an AI (Artificial Intelligence) system may contain inaccuracies and/or contain errors. Investing in stocks carries inherent risks, and past performance is not indicative of future results. This report does not account for your personal financial circumstances, objectives, or risk tolerance. Always conduct your own research or consult with a qualified financial advisor before making investment decisions. The analysis and recommendations provided are based on historical and current data and may not fully reflect future market conditions or unexpected developments. Neither the creators of this report nor its affiliated entities guarantee the accuracy, completeness, or reliability of the information presented. Use this report at your own discretion and risk.Date of analysis: Jul 21, 2026