Sutro Biopharma, Inc. (STRO)

Sutro Biopharma, Inc. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Sutro Biopharma, Inc. (STRO) is a Biotechnology company based in US with a market capitalization of $222.6M. Revenue grew 65.2% year-over-year and free cash flow was negative at -$178.9M. This page tracks STRO's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 269 employees · IPO Sep 27, 2018

Valuation

Valuation & price

$38.97as of May 17, 2026· -4.7% vs 52w high

P/E ratio

Latest-FY diluted EPS

P/B ratio

Market cap ÷ book equity

Dividend yield

Price — last 12 months

$40.91$24.31$7.72Jul 25Jan 26Jul 26
$7.3052-week range$40.91
Loading valuation history…

Fundamentals

Key fundamentals

$222.6M

Market cap

65.2%

Revenue growth (YoY)

92.8%

Gross margin

-$178.9M

Free cash flow (USD)

-$125.8M

Net debt

Net cash position

10.6%

Share dilution

0/4

Graham criteria passed

Defensive-investor screen

Healthcare

Sector

Trajectory

Long-term trends

Revenue by year

20162025

$59.7M$102.5M

Free cash flow by year

20162025

-$17.5M-$178.9M

Gross margin by year

20212025

84.2%92.8%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

0

Insider sells · 90 days

Earnings

Last reported: May 14, 2026 (EPS $-2.94)

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventJun 8, 2026Filing

    Annual Meeting Results

  • 8-K eventMay 14, 2026Filing

    Earnings Release

  • Quarterly reportMay 14, 2026Filing

    10-Q Filed

Questions

Frequently asked questions

What is Sutro Biopharma, Inc.'s market cap?

Sutro Biopharma, Inc. (STRO) has a market capitalization of $222.6M.

What is STRO's P/E ratio?

A meaningful P/E ratio is not available for STRO — the company's latest fiscal-year earnings per share is zero, negative, or not yet cached.

When did Sutro Biopharma, Inc. last report earnings?

STRO last reported earnings on May 14, 2026; the next date is not yet scheduled.

Are insiders buying STRO stock?

SEC Form 4 filings show no open-market insider buys at Sutro Biopharma, Inc. in the last 90 days (0 sells).

Same arena

Related companies in Biotechnology

Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

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News

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Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.