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Alto Ingredients, Inc. (ALTO)

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

Alto Ingredients, Inc. (ALTO) is a Chemicals - Specialty company based in US with a market capitalization of $422.7M. Revenue declined 4.9% year-over-year and the company generated $8.6M in free cash flow. This page tracks ALTO's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 393 employees · IPO Mar 24, 2005

Valuation

Valuation & price

$4.67 · as of May 17, 2026 · -22.0% vs 52w high

26.5

P/E ratio

Latest-FY diluted EPS

1.72

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$5.99$3.45$0.92Jul 25Dec 25Jun 26Jul 7, 25$1.23Jul 9, 25$1.26Jul 11, 25$1.24Jul 15, 25$1.19Jul 17, 25$1.18Jul 21, 25$1.23Jul 23, 25$1.24Jul 25, 25$1.18Jul 29, 25$1.11Jul 31, 25$1.01Aug 4, 25$1.03Aug 6, 25$1.04Aug 8, 25$1.06Aug 12, 25$1.04Aug 14, 25$1.04Aug 18, 25$1.05Aug 20, 25$1.05Aug 22, 25$1.06Aug 27, 25$1.05Aug 29, 25$1.13Sep 3, 25$1.14Sep 5, 25$1.17Sep 9, 25$1.16Sep 11, 25$1.16Sep 15, 25$1.18Sep 17, 25$1.17Sep 19, 25$0.92Sep 23, 25$1.10Sep 25, 25$1.07Sep 29, 25$1.09Oct 1, 25$1.03Oct 3, 25$1.11Oct 7, 25$1.11Oct 9, 25$1.12Oct 13, 25$1.10Oct 16, 25$1.14Oct 20, 25$1.13Oct 22, 25$1.08Oct 24, 25$1.09Oct 28, 25$1.06Oct 30, 25$1.05Nov 3, 25$1.04Nov 5, 25$1.16Nov 7, 25$1.38Nov 11, 25$1.78Nov 13, 25$1.94Nov 17, 25$1.99Nov 19, 25$2.14Nov 21, 25$2.10Nov 25, 25$2.45Nov 28, 25$2.55Dec 2, 25$2.56Dec 5, 25$2.51Dec 9, 25$2.57Dec 11, 25$2.56Dec 15, 25$2.56Dec 17, 25$2.61Dec 19, 25$2.96Dec 23, 25$2.97Dec 26, 25$3.03Dec 30, 25$2.91Jan 2, 26$2.66Jan 6, 26$2.45Jan 8, 26$2.40Jan 12, 26$2.54Jan 14, 26$2.72Jan 16, 26$2.70Jan 21, 26$2.87Jan 23, 26$2.82Jan 28, 26$2.61Jan 30, 26$2.50Feb 3, 26$2.80Feb 5, 26$2.52Feb 9, 26$2.77Feb 11, 26$2.77Feb 13, 26$2.68Feb 18, 26$2.50Feb 20, 26$2.42Feb 24, 26$2.41Feb 26, 26$2.36Mar 2, 26$2.52Mar 4, 26$2.60Mar 6, 26$4.39Mar 10, 26$4.60Mar 12, 26$4.75Mar 16, 26$4.31Mar 19, 26$4.52Mar 23, 26$4.13Mar 25, 26$4.38Mar 27, 26$4.51Mar 31, 26$4.84Apr 2, 26$4.67Apr 7, 26$4.41Apr 9, 26$4.87Apr 13, 26$5.10Apr 15, 26$4.90Apr 17, 26$4.94Apr 21, 26$4.93Apr 23, 26$5.31Apr 27, 26$5.49Apr 29, 26$5.31May 1, 26$5.43May 5, 26$5.99May 8, 26$4.46May 12, 26$4.62May 14, 26$4.66May 18, 26$4.70May 20, 26$4.67May 22, 26$4.70May 27, 26$5.30May 29, 26$5.45Jun 2, 26$5.67Jun 4, 26$5.52Jun 8, 26$5.63Jun 10, 26$5.66Jun 12, 26$5.70Jun 16, 26$4.84Jun 18, 26$5.02Jun 23, 26$5.11Jun 29, 26$5.35
$0.9252-week range$5.99
Loading valuation history…

Fundamentals

Key fundamentals

$422.7M

Market cap

-4.9%

Revenue growth (YoY)

2.9%

Gross margin

$8.6M

Free cash flow (USD)

$71.9M

Net debt

1.4%

Share dilution

3/5

Graham criteria passed

Defensive-investor screen

Basic Materials

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$1.6BFY 2017$1.6BFY 2018$1.5BFY 2019$1.4BFY 2020$897.0MFY 2021$1.2BFY 2022$1.3BFY 2023$1.2BFY 2024$965.3MFY 2025$917.9M
$1.6B$917.9M

Free cash flow by year

2016 → 2025

FY 2016$21.2MFY 2017$15.6MFY 2018$-13.6MFY 2019$-34.5MFY 2020$65.1MFY 2021$10.4MFY 2022$-31.7MFY 2023$-7.5MFY 2024$-14.6MFY 2025$8.6M
$21.2M$8.6M

Gross margin by year

2021 → 2025

FY 20215.6%FY 2022-2.1%FY 20231.3%FY 20241.0%FY 20252.9%
5.6%2.9%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

1

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 eventIncentive Plan EstablishedJun 23, 2026Filing
  • Insider buyInsider Buy $114KNATHAN GILBERT E · Director · $114.5KMay 14, 2026Filing
  • Quarterly report10-Q FiledMay 8, 2026Filing
  • FinancingSecurities RegistrationMay 8, 2026Filing
  • 8-K eventEarnings ReleaseMay 6, 2026Filing

Questions

Frequently asked questions

What is Alto Ingredients, Inc.'s market cap?

Alto Ingredients, Inc. (ALTO) has a market capitalization of $422.7M.

What is ALTO's P/E ratio?

ALTO trades at a price-to-earnings ratio of 26.5, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

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

ALTO trades at 1.72 times book value per share.

Are insiders buying ALTO stock?

Yes — SEC Form 4 filings show 1 open-market insider buy and 0 sells at Alto Ingredients, Inc. in the last 90 days.

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Timeline

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

Filing Analyzer

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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.