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Innospec Inc. (IOSP)

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

Innospec Inc. (IOSP) is a Chemicals - Specialty company based in US with a market capitalization of $2B. Revenue declined 3.6% year-over-year and the company generated $88M in free cash flow. This page tracks IOSP's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 2.45K employees · IPO May 13, 1998

Valuation

Valuation & price

$78.15 · as of May 17, 2026 · -12.5% vs 52w high

16.8

P/E ratio

Latest-FY diluted EPS

1.54

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$89.23$78.23$67.23Jul 25Dec 25Jul 26Jul 7, 25$86.47Jul 9, 25$89.23Jul 11, 25$88.26Jul 15, 25$85.08Jul 17, 25$85.01Jul 21, 25$83.55Jul 23, 25$85.82Jul 25, 25$84.38Jul 29, 25$82.05Jul 31, 25$79.90Aug 4, 25$79.35Aug 6, 25$78.25Aug 11, 25$81.17Aug 13, 25$85.02Aug 15, 25$82.94Aug 19, 25$84.17Aug 21, 25$83.99Aug 25, 25$86.62Aug 27, 25$87.73Aug 29, 25$87.59Sep 3, 25$85.81Sep 5, 25$85.72Sep 9, 25$83.55Sep 11, 25$83.65Sep 16, 25$81.23Sep 18, 25$82.09Sep 22, 25$79.21Sep 24, 25$78.60Sep 26, 25$77.54Sep 30, 25$77.16Oct 2, 25$78.61Oct 6, 25$78.81Oct 8, 25$78.50Oct 10, 25$73.92Oct 14, 25$74.43Oct 16, 25$74.19Oct 21, 25$74.84Oct 23, 25$75.65Oct 27, 25$75.22Oct 29, 25$73.48Oct 31, 25$73.58Nov 4, 25$72.26Nov 6, 25$73.49Nov 10, 25$75.07Nov 12, 25$74.86Nov 14, 25$74.09Nov 18, 25$71.15Nov 20, 25$70.62Nov 25, 25$74.53Nov 28, 25$74.76Dec 2, 25$74.37Dec 4, 25$74.01Dec 8, 25$74.95Dec 10, 25$78.48Dec 12, 25$78.19Dec 16, 25$77.99Dec 18, 25$79.31Dec 22, 25$77.88Dec 24, 25$78.12Dec 29, 25$78.56Jan 2, 26$76.28Jan 6, 26$78.61Jan 8, 26$79.99Jan 12, 26$80.57Jan 14, 26$80.85Jan 16, 26$79.86Jan 21, 26$81.15Jan 23, 26$80.83Jan 27, 26$79.53Jan 29, 26$81.41Feb 2, 26$83.50Feb 4, 26$86.89Feb 9, 26$86.14Feb 11, 26$88.42Feb 13, 26$86.58Feb 18, 26$86.36Feb 20, 26$81.22Feb 24, 26$79.30Feb 26, 26$77.58Mar 2, 26$77.04Mar 4, 26$77.02Mar 6, 26$72.11Mar 10, 26$70.60Mar 12, 26$68.83Mar 17, 26$68.87Mar 19, 26$67.23Mar 23, 26$67.32Mar 25, 26$70.75Mar 27, 26$72.20Mar 31, 26$73.02Apr 2, 26$73.79Apr 7, 26$72.88Apr 9, 26$75.83Apr 13, 26$76.57Apr 15, 26$74.66Apr 17, 26$76.19Apr 22, 26$74.97Apr 24, 26$77.15Apr 28, 26$76.64Apr 30, 26$76.26May 4, 26$76.48May 6, 26$77.67May 8, 26$80.55May 12, 26$80.44May 14, 26$80.00May 18, 26$79.05May 20, 26$78.66May 22, 26$79.58May 28, 26$82.29Jun 1, 26$81.93Jun 3, 26$80.60Jun 5, 26$80.68Jun 9, 26$82.83Jun 11, 26$85.86Jun 15, 26$85.11Jun 17, 26$83.11Jun 22, 26$82.47Jun 24, 26$83.39Jun 26, 26$82.63Jul 2, 26$82.56
$65.8952-week range$89.32
Loading valuation history…

Fundamentals

Key fundamentals

$2B

Market cap

-3.6%

Revenue growth (YoY)

27.7%

Gross margin

$88M

Free cash flow (USD)

-$239.8M

Net debt

Net cash position

-0.2%

Share dilution

4/5

Graham criteria passed

Defensive-investor screen

Basic Materials

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$883.4MFY 2017$1.3BFY 2018$1.5BFY 2019$1.5BFY 2020$1.2BFY 2021$1.5BFY 2022$2.0BFY 2023$1.9BFY 2024$1.8BFY 2025$1.8B
$883.4M$1.8B

Free cash flow by year

2016 → 2025

FY 2016$88.0MFY 2017$50.5MFY 2018$74.8MFY 2019$131.7MFY 2020$116.2MFY 2021$54.1MFY 2022$39.4MFY 2023$145.2MFY 2024$143.1MFY 2025$88.0M
$88M$88M

Gross margin by year

2021 → 2025

FY 202129.3%FY 202229.9%FY 202330.3%FY 202429.4%FY 202527.7%
29.3%27.7%

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 report: 10-Q filed May 8, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventDirector AppointmentJun 4, 2026Filing
  • 8-K eventAnnual Meeting ResultsMay 13, 2026Filing
  • 8-K eventEarnings ReleaseMay 8, 2026Filing
  • Quarterly report10-Q FiledMay 8, 2026Filing

Questions

Frequently asked questions

What is Innospec Inc.'s market cap?

Innospec Inc. (IOSP) has a market capitalization of $2B.

What is IOSP's P/E ratio?

IOSP trades at a price-to-earnings ratio of 16.8, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is IOSP's price-to-book (P/B) ratio?

IOSP trades at 1.54 times book value per share.

Are insiders buying IOSP stock?

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

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Timeline

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

Filing Analyzer

Search the actual 10-K / 10-Q text with AI research angles

News

Latest press coverage in one feed

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.