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aTyr Pharma, Inc. (ATYR)

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

aTyr Pharma, Inc. (ATYR) is a Biotechnology company based in US with a market capitalization of $53.9M. Revenue declined 19.1% year-over-year and free cash flow was negative at -$62.1M. This page tracks ATYR's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 56 employees · IPO May 7, 2015

Valuation

Valuation & price

$0.50 · as of May 17, 2026 · -92.4% vs 52w high

—

P/E ratio

Latest-FY diluted EPS

0.80

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$6.61$3.53$0.44Jul 25Dec 25Jul 26Jul 7, 25$5.30Jul 9, 25$5.53Jul 11, 25$5.30Jul 15, 25$5.63Jul 17, 25$5.79Jul 21, 25$5.71Jul 23, 25$6.61Jul 25, 25$5.83Jul 29, 25$5.25Jul 31, 25$4.72Aug 4, 25$5.02Aug 6, 25$5.34Aug 11, 25$5.61Aug 13, 25$5.15Aug 15, 25$4.90Aug 19, 25$4.66Aug 21, 25$4.95Aug 25, 25$5.16Aug 27, 25$5.17Aug 29, 25$5.38Sep 3, 25$5.71Sep 5, 25$5.61Sep 9, 25$5.31Sep 11, 25$5.26Sep 16, 25$1.08Sep 18, 25$1.05Sep 22, 25$1.05Sep 24, 25$0.95Sep 26, 25$0.84Sep 30, 25$0.72Oct 2, 25$0.71Oct 6, 25$0.82Oct 8, 25$1.00Oct 10, 25$1.06Oct 14, 25$1.04Oct 16, 25$1.00Oct 21, 25$1.03Oct 23, 25$0.97Oct 27, 25$0.97Oct 29, 25$0.97Oct 31, 25$0.87Nov 4, 25$0.83Nov 6, 25$0.77Nov 10, 25$0.79Nov 12, 25$0.72Nov 14, 25$0.75Nov 18, 25$0.70Nov 20, 25$0.65Nov 25, 25$0.77Nov 28, 25$0.78Dec 2, 25$0.71Dec 4, 25$0.83Dec 8, 25$0.81Dec 10, 25$0.82Dec 12, 25$0.78Dec 16, 25$0.73Dec 18, 25$0.70Dec 22, 25$0.73Dec 24, 25$0.74Dec 29, 25$0.75Jan 2, 26$0.76Jan 6, 26$0.72Jan 8, 26$0.73Jan 12, 26$0.68Jan 14, 26$0.72Jan 16, 26$0.71Jan 21, 26$0.71Jan 23, 26$0.72Jan 27, 26$0.71Jan 29, 26$0.85Feb 2, 26$0.97Feb 4, 26$0.88Feb 9, 26$0.90Feb 11, 26$0.93Feb 13, 26$0.89Feb 18, 26$0.99Feb 20, 26$1.04Feb 24, 26$0.99Feb 26, 26$0.99Mar 2, 26$0.99Mar 4, 26$0.96Mar 6, 26$0.82Mar 10, 26$0.94Mar 12, 26$0.87Mar 17, 26$0.88Mar 19, 26$0.83Mar 23, 26$0.83Mar 25, 26$0.80Mar 27, 26$0.75Mar 31, 26$0.78Apr 2, 26$0.85Apr 7, 26$0.80Apr 9, 26$0.75Apr 13, 26$0.81Apr 15, 26$0.84Apr 17, 26$0.85Apr 22, 26$0.84Apr 24, 26$0.79Apr 28, 26$0.79Apr 30, 26$0.81May 4, 26$0.84May 6, 26$1.04May 8, 26$0.95May 12, 26$0.53May 14, 26$0.56May 18, 26$0.52May 20, 26$0.53May 22, 26$0.49May 28, 26$0.49Jun 1, 26$0.55Jun 3, 26$0.50Jun 5, 26$0.47Jun 9, 26$0.46Jun 11, 26$0.48Jun 15, 26$0.44Jun 17, 26$0.46Jun 22, 26$0.47Jun 24, 26$0.56Jun 26, 26$0.53Jul 2, 26$0.59
$0.4052-week range$6.61
Loading valuation history…

Fundamentals

Key fundamentals

$53.9M

Market cap

-19.1%

Revenue growth (YoY)

-717.4%

Gross margin

-$62.1M

Free cash flow (USD)

-$66.7M

Net debt

Net cash position

25.2%

Share dilution

2/5

Graham criteria passed

Defensive-investor screen

Healthcare

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$0.00FY 2017$0.00FY 2018$0.00FY 2019$422.0KFY 2020$10.5MFY 2021$0.00FY 2022$10.4MFY 2023$353.0KFY 2024$235.0KFY 2025$190.0K
$0$190K

Free cash flow by year

2016 → 2025

FY 2016$-53.5MFY 2017$-43.7MFY 2018$-31.7MFY 2019$-20.1MFY 2020$-15.5MFY 2021$-33.3MFY 2022$-43.5MFY 2023$-37.4MFY 2024$-69.2MFY 2025$-62.1M
-$53.5M-$62.1M

Gross margin by year

2022 → 2025

FY 202283.7%FY 2023100.0%FY 2024100.0%FY 2025-717.4%
83.7%-717.4%

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 reported: May 15, 2026 (EPS $-0.11)

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventDelisting NoticeJun 8, 2026Filing
  • 8-K eventInvestor PresentationJun 1, 2026Filing
  • Insider buyInsider Buy $50KSCHIMMEL PAUL · Director · $49.6KMay 28, 2026Filing
  • 8-K eventEarnings ReleaseMay 15, 2026Filing
  • Quarterly report10-Q FiledMay 15, 2026Filing
  • 8-K eventRegulatory UpdateMay 11, 2026Filing

Questions

Frequently asked questions

What is aTyr Pharma, Inc.'s market cap?

aTyr Pharma, Inc. (ATYR) has a market capitalization of $53.9M.

What is ATYR's P/E ratio?

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

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

ATYR trades at 0.80 times book value per share.

When did aTyr Pharma, Inc. last report earnings?

ATYR last reported earnings on May 15, 2026; the next date is not yet scheduled.

Are insiders buying ATYR stock?

Yes — SEC Form 4 filings show 1 open-market insider buy and 0 sells at aTyr Pharma, 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.