StockData
Sutro Biopharma, Inc. logo

Sutro Biopharma, Inc. (STRO) stock

STRONasdaqBiological Products, (No Diagnostic Substances)Fiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 12, 2026Score 7/30
$10.26+0.09 (+0.88%)

Close on Nov 11, 2026Market cap $170.12MP/E –Yield –

Sutro Biopharma, Inc. saw revenue fall 56.3% to $45.70M over the twelve months to Jun 30, 2026. At the latest close the market valued the company at $170.12M.

Revenue
$45.70M
-56.3% vs. a year earlier
Operating income
-$146.05M
TTM Q2 2026
EPS, diluted
-$17.32
TTM Q2 2026

Key statistics

Valuation at the latest close; fundamentals over the trailing twelve months, balances at Jun 30, 2026

Valuation

Market cap
$170.12M
P/E ratio
–
Price to sales
3.72
Price to book
–
Dividend yield
–
Free cash flow yield
–

Fundamentals

Revenue
$45.70M
Net income
-$180.64M
EPS, diluted
-$17.32
Book value per share
-$6.23
Diluted shares
17M

Trading

Next earnings
Q3 FY2026, expected soon
Previous close
$10.17
Open
$10.35
Day's range
$9.94 – $10.36
Volume
138,935
Average volume (20 days)
323,102
Index membership
Russell 2000 (since Jun 2026)
Beta (5 years)
2.21
52-week range
$7.15 – $43.85
RSI (14 days)
42.4
Volatility (1 year)
87.2%
Relative volume
0.45×
WACC
15.9%

On 1 of our idea list: More cash than they're worth

Index membership is inferred from the holdings of funds that track each index (IWM), as reported to the SEC for Jun 30, 2026. Join dates come from quarterly fund reports since 2019, so they are accurate to the quarter.

Market cap history

Month-end market cap since 2018, using shares outstanding reported at the time

Total return vs. the S&P 500

Price change plus reinvested dividends, to the close on Nov 11, 2026. The S&P 500 is measured by the SPY fund.

PeriodSTROS&P 500DifferenceSTRO per yearS&P 500 per year
1 month-28.1%-2.4%−25.7 pts
3 months-59.0%-1.2%−57.9 pts
Year to date-11.3%+12.3%−23.6 pts
1 year+26.2%+12.4%+13.7 pts
3 years-50.7%+78.8%−129.5 pts-21.0%+21.4%
5 years-95.0%+75.2%−170.1 pts-45.0%+11.9%

Eleven years at a glance

Fiscal years 2015 to 2025 and trailing twelve months, USD

Revenue

$45.70M-56.3% YoY

Operating income

-$146.05M

Net income

-$180.64M

EPS, diluted

-$17.32

Free cash flow

–
Reported periodTrailing twelve months

Press releases

Releases Sutro Biopharma filed with the SEC as exhibits to Form 8-K or 6-K

All press releases and earnings

About Sutro Biopharma

Biological Products, (No Diagnostic Substances)

The company is a clinical-stage oncology biotechnology enterprise dedicated to the design and development of novel-format and site-specific antibody-drug conjugates (ADCs) to treat solid tumors. Leveraging proprietary cell-free protein synthesis and site-specific conjugation platforms, known as XpressCF and XpressCF+, the organization creates homogeneous therapeutics, including standard ADCs, immunostimulatory ADCs, and dual-payload ADCs. Its clinical pipeline is led by STRO-004, an investigational therapy targeting tissue factor in patients with advanced solid tumors, alongside preclinical candidates STRO-227 and STRO-006. In addition to internal development, the firm partners with pharmaceutical and biotechnology companies through research, development, and licensing collaborations across oncology and infectious disease vaccine applications.

Company profile, executives and history

Sutro Biopharma stock: common questions

What is Sutro Biopharma's stock price?

STRO closed at $10.26 on Nov 11, 2026, up 0.88% on the day. Over the past 52 weeks it traded between $7.15 and $43.85.

What is Sutro Biopharma's market cap?

Sutro Biopharma was worth $170.12M at the close on Nov 11, 2026: the share price times the diluted shares outstanding.

What is STRO's P/E ratio?

Sutro Biopharma lost money over the twelve months to Jun 30, 2026 (diluted EPS -$17.32), so it has no meaningful P/E ratio.

How much revenue does Sutro Biopharma make?

Sutro Biopharma reported revenue of $45.70M for the twelve months to Jun 30, 2026, down 56.3% from a year earlier.

Does Sutro Biopharma pay a dividend?

No. Sutro Biopharma has not paid a cash dividend over the last twelve months.

When does Sutro Biopharma report earnings next?

Sutro Biopharma's Q3 FY2026 results are due soon; the company has not yet filed them with the SEC.

How has STRO stock performed over the past year?

Including dividends, STRO returned +26.2% over the past year, against +12.4% for the S&P 500.

How many STRO shares are sold short?

2M shares were sold short at the latest FINRA report, 14.50% of the float, or 6.3 days of average trading volume.

Who are Sutro Biopharma's competitors?

Companies most similar to Sutro Biopharma by business, industry and size include CCCC, GLUE, CHRS, RXRX, CGEN.

See a number that looks wrong?