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Sutro Biopharma(NASDAQ) STRO

Market Cap$363.29MMarket cap calculated using publicly traded shares outstanding only. Does not include unlisted, private, or dual-class non-traded shares. Implied market cap may vary.
Since IPO (2018)-86%
5 Year-89%
1 Year+154%
1 Month-3%
$21.88
-0.73%
-0.16Today
After hours$21.91+$0.03 (+0.14%)
Sutro Biopharma last closing stock price
MetricPriceDate
Last closeUSD 21.912026-08-19
Sutro Biopharma stock price return by period
PeriodPrice returnPrice at period startPeriod start date
1 week+2.86%USD 21.302026-08-12
1 month-3.01%USD 22.592026-07-20
3 month-28.45%USD 30.622026-05-21
Year to date+89.37%USD 11.572025-12-31
1 year+154.24%USD 8.622025-08-19
3 year-50.98%USD 44.702023-08-18
5 year-88.56%USD 191.502021-08-20
Since inception-85.5%USD 152.002018-09-27

Sutro Biopharma Financials at a Glance

Market Cap

$363.29MMarket cap calculated using publicly traded shares outstanding only. Does not include unlisted, private, or dual-class non-traded shares. Implied market cap may vary.

Revenue (TTM)

$45.70M

Net Income (TTM)

-$180.64M

EPS (TTM)

-$17.41

P/E Ratio

-1.26

Dividend

$0.00

Beta (Volatility)

1.32 (Average)

Price

$21.88

Volume

112,457

Open

$22.63

Previous Close

$21.91

Daily Range

$21.70 - $23.45

52-Week Range

$7.15 - $43.85

Estimated Earnings Date

Nov 5, 2026

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About Sutro Biopharma

Sutro Biopharma develops new treatments for cancer and autoimmune diseases. Its technology helps create proteins that target these conditions more precisely. The company makes better medicines for patients.

Modern Tools for Fighting Disease

  • Antibody-Drug Conjugates (ADCs): Medicines that join a targeting protein with a toxic drug to kill cancer cells.
  • STRO-004: Lead drug candidate targeting a cell protein called tissue factor in various solid tumors.
  • STRO-006: Experimental treatment targeting a specific protein found in cancers like lung and ovarian tumors.
  • STRO-227: Dual-payload treatment that carries two different toxins to attack tumors from multiple angles.
  • Technology Platforms: Systems that build complex proteins for drug and vaccine development without using living cells.

Strategic Shifts and Big Partnerships

  • Partnered with Astellas Pharma Inc. to move new immune-boosting treatments into clinical trials during early 2026.
  • Entered a revenue interest agreement with Blackstone in June 2023 to monetize future vaccine royalties.
  • Raised approximately $110.0 million in common stock through a public offering in February 2026.
  • Closed the San Carlos manufacturing facility in 2025 to move toward an external production strategy.
  • Terminated development of the drug candidate luveltamab in 2025 to refocus on newer pipeline assets.

Precision Engineering and High Innovation

Sutro uses a cell-free platform to build proteins without the biological constraints of living cells. This technology enables the company to design precisely targeted treatments more rapidly than traditional biotech methods.

Tracking Recent Financial Results

  • Total revenue was $9.8 million for the three-month period ended June 30, 2026, down 85% year over year.
  • Total revenue for the six months ended June 30, 2026, was $24.4 million.
  • Net loss reached $77.0 million during the first half of 2026.
  • Cash and marketable securities totaled $164.3 million as of June 30, 2026.
  • Accumulated deficit grew to $1.1 billion by the end of June 2026.

Bottom Line

Sutro has focused its resources on a smaller group of high-potential cancer treatments. Its move to external manufacturing and strategic partnerships aims to extend its financial runway.

AI Generated • Aug 12, 2026

Industry

Biotechnology

Employees

128

CEO

Jane Chung

Headquarters

South San Francisco, CA 94080, US

STRO Financials

Key Financial Metrics (TTM)

Gross Margin

97.20%

Operating Margin

-309.87%

Net Income Margin

-395.25%

Return on Equity

185.30%

Return on Capital

N/A

Return on Assets

-92.89%

Earnings Yield

-79.37%

Dividend Yield

0.00%

Payout Ratio

0.00%

Stock Overview

Market Cap

$363.29MMarket cap calculated using publicly traded shares outstanding only. Does not include unlisted, private, or dual-class non-traded shares. Implied market cap may vary.

Shares Outstanding

16.58M

Volume

112.46K

Avg. Volume

364.76K

Financials (TTM)

Gross Profit

$44.42M

Operating Income

-$141.62M

EBITDA

-$134.60M

Operating Cash Flow

-$145.17M

Capital Expenditure

-$446.00K

Free Cash Flow

-$145.62M

Cash & ST Invst.

$164.35M

Total Debt

$10.78M

Sutro Biopharma Performance Analysis

Sutro Biopharma annual revenue and year-over-year revenue growth by fiscal year
Fiscal yearPeriod endRevenueYoY growth
20222022-12-31USD 67,772,0009.5%
20232023-12-31USD 153,731,000126.8%
20242024-12-31USD 62,043,000-59.6%
20252025-12-31USD 102,484,00065.2%
Sutro Biopharma sequential (quarter-over-quarter) revenue growth by fiscal quarter
Fiscal quarterPeriod endQoQ growth
Q32025-09-30-84.8%
Q42025-12-3120.2%
Q12026-03-3124.7%
Q22026-06-30-32.3%
Sutro Biopharma annual diluted earnings per share and year-over-year EPS growth by fiscal year
Fiscal yearPeriod endDiluted EPSYoY growth
20222022-12-31USD -23.492.7%
20232023-12-31USD -17.75-24.4%
20242024-12-31USD -29.6166.8%
20252025-12-31USD -22.49-24.0%
Sutro Biopharma sequential (quarter-over-quarter) diluted earnings per share growth by fiscal quarter
Fiscal quarterPeriod endQoQ growth
Q32025-09-30-378.6%
Q42025-12-3118.7%
Q12026-03-3146.1%
Q22026-06-3020.7%

Revenue Growth Rate

Annual and quarterly growth comparison

Earnings Per Share Growth Rate

Annual and quarterly EPS growth comparison

Quarterly Performance

Name
Q2 2026YOY CHG

Revenue

$9.84M

-84.6%

Gross Profit

$9.84M

-84.6%

Gross Margin

100.00%

N/A

Market Cap

$363.29MMarket cap calculated using publicly traded shares outstanding only. Does not include unlisted, private, or dual-class non-traded shares. Implied market cap may vary.

N/A

Market Cap/Employee

$2.73M

N/A

Employees

133

N/A

Net Income

-$38.53M

-235.1%

EBITDA

-$27.41M

-2652.0%

Quarterly Fundamentals

Name
Q2 2026YOY CHG

Total Cash

$164.35M

-19.9%

Total Debt

$10.78M

-95.1%

Accounts Receivable

$5.80M

-27.5%

Inventory

$0.00

N/A

Long Term Debt

$4.12M

-98.1%

Short Term Debt

$6.66M

-17.3%

Return on Assets

-92.89%

N/A

Return on Invested Capital

-1.00%

N/A

Free Cash Flow

-$38.29M

+14.6%

Operating Cash Flow

-$38.29M

+14.4%

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Questions About STRO

What is the current price of Sutro Biopharma?

Sutro Biopharma is trading at $21.91 per share.

What is the 52-week range for Sutro Biopharma?

Over the past 52 weeks, Sutro Biopharma has traded between $7.15 and $43.85.

How much debt does Sutro Biopharma have?

As of the most recent reporting period, Sutro Biopharma reported total debt of $249.85M.

How much cash does Sutro Biopharma have on hand?

Sutro Biopharma reported $54.34M in cash and cash equivalents in its most recent financial results.

What is Sutro Biopharma’s dividend yield?

Sutro Biopharma does not currently have a dividend yield.

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