ATYR Stock Snapshot Price, market cap, P/E, EPS, ROE, debt/equity, 52-week range

03
Price $0.29
Market Cap (MRQ) $28M
P/E -0.4
EPS $-0.80
Revenue $190.0K
ROE -107.8%
52W Range $0–$1

ATYR Stock Price Chart Daily OHLCV with technical indicators — pan, zoom, and customize your view

04
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Bar granularity adapts to the selected period — hover the chart to see open/high/low/close for a bar.

Stock splits 1
Ex-date Split Type
July 1, 2019 1-for-14 Reverse

About aTyr Pharma, Inc. - Common Stock Company overview from Wikipedia

05 · wikidata

aTyr Pharma is a public biotherapeutics company (Nasdaq: LIFE) that is focused on researching the extracellular functionality and signaling pathways of tRNA synthetases.

The company's lead product candidate, ATYR1923, is a selective modulator of Neuropilin-2 (NRP2) that downregulates both the innate and adaptive immune responses in inflammatory disease states. aTyr is developing ATYR1923 as a potential disease-modifying therapy for patients with interstitial lung disease (ILD), a group of rare immune-mediated disorders that cause progressive fibrosis of the lung interstitium and remain a high unmet medical need. ATYR1923 is currently being investigated in a clinical trial in pulmonary sarcoidosis patients.

The company was founded in 2005 and is headquartered in San Diego, California, and led by CEO Sanjay S. Shukla.

History

In 2005, aTyr was founded by Paul Schimmel, and Xiang-Lei Yang, two aminoacyl tRNA synthetase scientists at The Scripps Research Institute. In 2009, Bruce Beutler, recipient of the 2011 Nobel Prize in Physiology or Medicine, joined aTyr as a member of the scientific advisory board.

In April 2007, Polaris Partners and Alta Partners co-led a $10.5 million Series B financing. In October 2010, Series C financing totaled $23 million and was led by Domain Associates. This round was followed by a $49 million Series D in August 2013.

aTyr was a winner of the 2011 Red Herring 100 North America Award for discovering and developing innovative medicines based on Physiocrine biology.

In April 2015, aTyr raised $76 million in a Series E, led by Sofinnova Ventures, and filed for an IPO. The company began trading as LIFE on the Nasdaq stock exchange.

ATyr's primary focus is on ATYR1923, a clinical stage product candidate which binds to the NRP2 receptor and is designed to down regulate immune engagement in interstitial lung diseases (ILDs). ATYR1923 is currently being investigated in a clinical trial in patients with pulmonary sarcoidosis. In January 2020, ATyr entered into a license with Kyorin Pharmaceutical Co., Ltd. for the development and commercialization of ATYR1923 for ILDs in Japan. Under the license agreement, Kyorin received an exclusive right to develop and commercialize ATYR1923 in Japan for all forms of ILDs including, sarcoidosis, chronic hypersensitivity pneumonitis (CHP) and connective tissue disease ILD (CTD-ILD). aTyr recently initiated a clinical trial for ATYR1923 in patients with severe respiratory complications related to COVID-19.

Therapeutic concept

Homeostasis, or the coordinated regulation of tissues within the body, is fundamental to the maintenance of the overall health of an organism. Lack of homeostasis can lead to disease and death. The process of homeostasis was first described in 1865 by the French physiologist Claude Bernard and Walter Cannon later coined the term. In the 150 years since this discovery, many proteins associated with homeostatic pathways have been discovered, ranging from insulin to erythropoietin.

aTyr was founded after Dr. Schimmel discovered several nontranslational functions of aminoacyl tRNA synthetases, which are primarily responsible for the production of a vital component of protein synthesis, aminoacyl-tRNAs. [23] These nontranslational functions have since been shown to play an important role in maintaining homeostasis. [23] One of these nontranslational functions is modulation and regulation of the immune response. [23] This modulatory activity is a result of Physiocrines, a novel class of proteins that are present as biologically active signaling regions of the tRNA synthetases. aTyr's research is based on the premise that Physiocrines are involved in orchestrating homeostatic activities to help the body restore diseased or damaged tissue to a healthier state.

By researching and understanding the role of Physiocrines in immune modulation, aTyr has developed two IND candidates.

== References ==

Source: Wikipedia, CC BY-SA 4.0 · View on Wikipedia ↗

Wikidata ↗

sectorHealthcare industryBiotechnology employees58 countryUS

10-Year Performance Revenue, net income, margins and EPS trends

06
Revenue$190.0K
2019-12-31 → 2025-12-31
EPS$-0.80
2020-12-31 → 2025-12-31
Free Cash Flow$-62M
2016-12-31 → 2025-12-31
Net margin-39009.5%
2019-12-31 → 2025-12-31
Valuation & Ratios 07–12

Valuation P/E, P/S, P/B, EV/EBITDA ratios — is the stock expensive or cheap?

Metric 5Y trend ATYR 5Y avg Peer Median Verdict
P/E -0.45Y avg ≈-2.5 ≈-2.5 · ·
P/S 148.25Y avg ≈489.4 ≈489.4 60.5 Overvalued
P/B (MRQ) 0.65Y avg ≈1.9 ≈1.9 · ·
Price / FCF (TTM) -0.55Y avg ≈-3.1 ≈-3.1 · ·
Price / Cash Flow (TTM) -0.55Y avg ≈-3.2 ≈-3.2 · ·
Price / Tangible Book 0.45Y avg ≈1.9 ≈1.9 · ·

Peer median is calculated on a standardized basis per metric and may not always match the TTM/MRQ basis shown for this stock.

value · ≈ 5Y avg · industry median · verdict relative to median

Earnings History EPS actual vs estimate, surprise %, beat rate, next earnings date

14
Avg Surprise 5.2%
Next Report Nov 04, 2026
PeriodReportEPS ActualEPS EstSurprise
June 30, 2026 Aug 12, 2026 $-0.11 $-0.12 11.2%
March 31, 2026 May 15, 2026 $-0.11 $-0.14 21.6%
Dec. 31, 2025 $-0.14 $-0.19 25.3%
Sept. 30, 2025 $-0.26 $-0.19 -38.8%
June 30, 2025 $-0.22 $-0.19 -17.0%
March 31, 2025 $-0.17 $-0.19 12.3%
Dec. 31, 2024 $-0.18 $-0.23 21.9%

Full Fundamentals All metrics by year — income statement, balance sheet, cash flow

15
Income Statement 14
Metric Trend 2025202420232022202120202019
Revenue $190.0K$235.0K$353.0K$10M$0$10M$422.0K
R&D Expense $60M$54M$42M$43M$23M$17M$14M
SG&A Expense $18M$14M$13M$14M$11M$9M$9M
Operating Expenses $78M$68M$55M$57M$34M$26M$23M
Operating Income $-78M$-68M$-55M$-46M$-34M$-16M$-23M
Other Non-op $4M$4M$5M$1M$238.0K$-319.0K$-785.0K
Pretax Income $-74M$-64M$-50M$-45M$-34M$-16M$-24M
Income Tax $0$0$0$0$0$0$0
Net Income $-74M$-64M$-50M$-45M$-34M$-16M$-16M
EPS (Basic) $-0.80$-0.86$-0.94$-1.60$-1.77$-1.77·
EPS (Diluted) $-0.80$-0.86$-0.94$-1.60$-1.77$-1.77·
Shares (Basic) 92,985,35974,261,26553,606,48828,419,56919,080,8789,160,269·
Shares (Diluted) 92,985,35974,261,26553,606,48828,419,56919,080,8789,160,269·
EBITDA $-77M$-67M$-54M$-46M$-34M$-15M$-22M
Balance Sheet 20
Metric Trend 2025202420232022202120202019
Cash & Equivalents $11M$11M$23M$10M$2M$17M$9M
Prepaid Expense $677.0K$8M$2M$3M$5M$2M$681.0K
Current Assets $80M$82M$103M$81M$114M$36M$32M
PP&E (Net) $4M$5M$6M$3M$543.0K$899.0K$1M
PP&E (Gross) $9M$9M$10M$9M$7M$8M$7M
Accum. Depreciation $5M$5M$5M$6M$6M$7M$6M
Other Non-current Assets $148.0K$66.0K$131.0K$193.0K$158.0K$213.0K$172.0K
Total Assets $93M$97M$121M$96M$116M$39M$36M
Accounts Payable $4M$4M$4M$3M$1M$1M$847.0K
Accrued Liabilities $10M$9M$12M$10M$4M$4M$2M
Current Liabilities $15M$15M$16M$14M$6M$6M$13M
Capital Leases $10M$11M$12M$10M$398.0K$1M$2M
Total Debt ······$9M
Common Stock $98.0K$84.0K$63.0K$29.0K$28.0K$11.0K$4.0K
Paid-in Capital $674M$602M$559M$490M$482M$370M$344M
Retained Earnings $-606M$-532M$-468M$-418M$-372M$-339M$-322M
AOCI $-8.0K$-40.0K$-74.0K$-433.0K$-263.0K$-43.0K$-40.0K
Stockholders' Equity $67M$70M$91M$71M$109M$32M$21M
Liabilities + Equity $93M$97M$121M$96M$116M$39M$36M
Shares Outstanding 98,031,01484,038,92263,286,40429,498,48827,793,03511,018,9543,891,787
Cash Flow 8
Metric Trend 2025202420232022202120202019
D&A $664.0K$708.0K$592.0K$232.0K$475.0K$569.0K$635.0K
Other Non-cash $11M$-6M$17M$3M$218.0K$354.0K$3M
Operating Cash Flow $-62M$-69M$-33M$-42M$-33M$-15M$-20M
CapEx $77.0K$65.0K$4M$2M$192.0K$202.0K$79.0K
Investing Cash Flow $-5M$17M$-20M$47M$-92M$7M$5M
Financing Cash Flow $66M$40M$66M$5M$110M$16M$1M
Net Change in Cash $-1M$-12M$13M$11M$-15M$8M$-14M
Free Cash Flow $-62M$-69M$-37M$-44M$-33M$-16M$-20M
Profitability 7
Metric Trend 2025202420232022202120202019
Operating Margin -40856.3%-28899.6%-15557.8%-446.8%·-152.2%-5445.0%
Net Margin -39009.5%-27243.8%-14274.5%-436.5%·-155.2%-5593.1%
Pretax Margin -39012.1%-27243.4%-14276.2%-436.6%·-155.2%-5631.0%
EBITDA Margin -40506.8%-28598.3%-15390.1%-444.6%·-146.7%-5294.6%
ROA -78.1%-58.9%-46.6%-42.9%-43.8%-43.3%-53.1%
ROE -107.8%-79.7%-62.2%-50.2%-47.9%-61.4%-98.5%
ROIC -115.0%-97.0%-60.6%-64.9%-31.1%-50.3%·
Liquidity & Solvency 3
Metric Trend 2025202420232022202120202019
Current Ratio 5.35.56.35.818.96.12.5
Quick Ratio 0.70.71.40.70.42.90.7
Debt / Equity ······0.4
Efficiency 1
Metric Trend 2025202420232022202120202019
Asset Turnover 0.00.00.00.1·0.30.0
Per Share 5
Metric Trend 2025202420232022202120202019
Book Value / Share $0.69$0.83$1.43$2.42$3.93$2.87$5.44
Revenue / Share $0.00$0.00$0.01$0.37···
Cash Flow / Share $-0.67$-0.93$-0.62$-1.47···
Cash / Share $0.11$0.13$0.36$0.34$0.08$1.54$2.37
EPS (TTM) $-0.80$-0.86$-0.94$-1.60$-1.77$-1.77·
Growth Rates 3
Metric Trend 2025202420232022202120202019
Revenue YoY -19.1%-33.4%-96.6%····
Revenue CAGR 3Y -73.7%·-67.7%····
Revenue CAGR 5Y -55.1%······
Valuation (TTM) 14
Metric Trend 2025202420232022202120202019
Revenue TTM $190.0K$235.0K$353.0K$10M$0$10M$422.0K
Net Income TTM $-74M$-64M$-50M$-45M$-34M$-16M$-16M
Market Cap $77M$304M$89M$65M$208M$43M$16M
Enterprise Value ······$16M
P/E -1.0-4.2-1.5-1.4-4.2-2.2·
P/S 404.01294.6252.86.2·4.138.5
P/B 1.14.31.00.91.91.40.8
P / Tangible Book 1.14.31.00.91.91.4·
P / Cash Flow -1.2-4.4-2.7-1.5-6.3-2.8-0.8
P / FCF -1.2-4.4-2.4-1.5-6.2-2.8-0.8
EV / EBITDA ······-0.7
EV / FCF ······-0.8
EV / Revenue ······37.3
Earnings Yield -102.2%-23.8%-66.7%-73.1%-23.7%-45.6%·

Most recent period on the left · null values shown as ·

Financial Statements Income statement, balance sheet, cash flow — annual, last 5 years

16
Metric 2025-12-312024-12-312023-12-312022-12-312021-12-31
Revenue $190.0K $235.0K $353.0K $10M $0
Operating Margin % -40856.3% -28899.6% -15557.8% -446.8% ·
Net Income $-74M $-64M $-50M $-45M $-34M
Diluted EPS $-0.80 $-0.86 $-0.94 $-1.60 $-1.77

Institutional owners (13F) 108 filers · $26.7M total · As of June 30, 2026

17

Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.

Holders 108
Value held $26.7M
New positions 17
Exited positions 34
Institutional activity — Q2 2026 vs prior quarter
New positions Exited positions Increased Decreased Net shares change
17 (-22 vs prior Q) 34 (+26 vs prior Q) 32 (+4 vs prior Q) 32 (-4 vs prior Q) -17.3M

Compared to Q1 2026. SEC Form 13F filings are due within 45 days of quarter-end plus a short buffer for late filers — quarters still inside that window are skipped in favor of the most recent fully-reported pair.

Institution Value Shares % of tracked 13F Type
FEDERATED HERMES, INC. $5,078,576 8,509,678 19.04% Shares
VANGUARD GROUP INC $3,885,145 4,961,871 14.57% Shares
VANGUARD CAPITAL MANAGEMENT LLC $2,273,430 3,808,091 8.52% Shares
AQR CAPITAL MANAGEMENT LLC $1,557,975 2,610,548 5.84% Shares
FMR LLC $1,474,942 2,471,418 5.53% Shares
BlackRock, Inc. $1,090,552 1,827,332 4.09% Shares
Kalehua Capital Management LLC $1,067,178 1,788,167 4.00% Shares
JANE STREET GROUP, LLC $1,027,270 1,721,297 3.85% Shares
UBS Group AG $914,097 1,531,151 3.43% Shares
MORGAN STANLEY $801,882 1,343,636 3.01% Shares
TWO SIGMA INVESTMENTS, LP $743,104 1,245,147 2.79% Shares
CITADEL ADVISORS LLC $741,265 1,242,067 2.78% Shares
GEODE CAPITAL MANAGEMENT, LLC $702,734 1,177,020 2.63% Shares
TWO SIGMA ADVISERS, LP $658,861 841,350 2.47% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $445,833 747,039 1.67% Shares
MILLENNIUM MANAGEMENT LLC $391,531 656,051 1.47% Shares
GOLDMAN SACHS GROUP INC $382,672 641,208 1.43% Shares
VANGUARD FIDUCIARY TRUST CO $343,947 576,125 1.29% Shares
STATE STREET CORP $295,387 494,951 1.11% Shares
H D Vest Advisory Services $292,382 57,669 1.10% Shares
MARSHALL WACE, LLP $220,872 368,120 0.83% Shares
WOLVERINE TRADING, LLC $163,096 205,100 0.61% Call option
CITADEL ADVISORS LLC $148,603 249,000 0.56% Call option
XTX Topco Ltd $135,281 226,678 0.51% Shares
NORTHERN TRUST CORP $131,380 220,141 0.49% Shares
BANK OF AMERICA CORP /DE/ $123,650 207,468 0.46% Shares
WOLVERINE TRADING, LLC $110,453 138,900 0.41% Put option
JANE STREET GROUP, LLC $106,588 178,600 0.40% Call option
RENAISSANCE TECHNOLOGIES LLC $98,604 165,222 0.37% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $92,880 154,800 0.35% Call option
JPMORGAN CHASE & CO $85,337 150,666 0.32% Shares
GROUP ONE TRADING LLC $82,882 138,878 0.31% Shares
Qube Research & Technologies Ltd $75,791 126,996 0.28% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $69,900 116,500 0.26% Put option
DIMENSIONAL FUND ADVISORS LP $54,114 90,861 0.20% Shares
WOLVERINE TRADING, LLC $42,961 54,026 0.16% Shares
HSBC HOLDINGS PLC $38,361 66,185 0.14% Shares
Mariner, LLC $34,998 58,658 0.13% Shares
CITADEL ADVISORS LLC $34,137 57,200 0.13% Put option
HOHIMER WEALTH MANAGEMENT, LLC $32,824 55,000 0.12% Shares
MERCER GLOBAL ADVISORS INC /ADV $31,947 53,531 0.12% Shares
KINGSWOOD WEALTH ADVISORS, LLC $31,034 52,000 0.12% Shares
Schonfeld Strategic Advisors LLC $30,364 50,880 0.11% Shares
ADAR1 Capital Management, LLC $30,249 50,685 0.11% Shares
Alpha Wealth Funds, LLC $29,890 50,000 0.11% Shares
Tower Research Capital LLC (TRC) $29,105 48,768 0.11% Shares
CWM, LLC $28,088 36,010 0.11% Shares
Creative Planning $24,823 41,593 0.09% Shares
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC $23,925 43,948 0.09% Shares
Point72 Asset Management, L.P. $22,248 37,278 0.08% Shares

Show all 108 institutional owners →

Activists & 5%+ owners 3 positions

18

Investors who filed SEC Schedule 13D — beneficial ownership above 5% with an intent to influence the issuer (activist stakes, board campaigns, M&A). Each row shows the most recent known state of that filer's position.

Filer Filed Stake Status Purpose Filing
PAUL SCHIMMEL, PAUL SCHIMMEL PROTOTYPE PSP, PAUL SCHIMMEL, TRUSTEE, FBO PAUL SCHIMMEL ×3 filings Feb. 14, 2020 · Initial filing · SEC
Polaris Venture Partners V, L.P. (“PVP V”), Polaris Venture Partners Entrepreneurs’ Fund V, L.P. (“PVPE V”), Polaris Venture Partners Founders’ Fund V, L.P. (“PVPFF V”), Polaris Venture Partners Special Founders’ Fund V, L.P. (“PVPSFF V”), Polaris Venture Management Co. V, L.L.C. (“PVM V”), Jonathan A. Flint, Terrance G. McGuire, Amir Nashat ×2 filings July 17, 2019 · Initial filing · SEC
Sofinnova Venture Partners IX, L.P. (“SVP IX”), Sofinnova Management IX, L.L.C. (“SM IX”), Dr. Michael F. Powell (“Powell”), Dr. James I. Healy (“Healy”), Dr. Anand Mehra (“Mehra”) ×3 filings Feb. 12, 2019 · Initial filing Passive investment SEC

Purpose is an automated classification of the filer's own stated purpose (SEC Item 4) — not investment advice. "—" means no clear purpose was stated or the text could not be classified.

Company insiders 34 insiders · 18 officers · 12 directors

19
Insider Role Last activity Shares owned Buys 12m Sells 12m Net 12m
Sanjay Shukla President and CEO Feb. 3, 2026 M 153,553 0 1 $-3,670
Brandon Yaras Chief Financial Officer Oct. 1, 2026 A · 0 0 $0
Jill Marie Broadfoot Chief Financial Officer Feb. 3, 2026 M 37,296 0 1 $-1,527
Stan Blackburn Acting Chief Financial Officer Jan. 27, 2016 A · 0 0 $0
Frederic Chereau President & COO May 6, 2015 A · 0 0 $0
Nancy Krueger General Counsel Feb. 3, 2026 M 33,124 0 1 $-1,096
Ashraf Amanullah Senior Vice President, Biologics Development and Manufacturing May 31, 2018 M 26,264 0 0 $0
John T Blake Senior Vice President, Finance Feb. 7, 2018 M 1,932 0 0 $0
David John King Chief Scientific Officer Feb. 6, 2018 A · 0 0 $0
Sanuj K. Ravindran Chief Business Officer Feb. 7, 2017 A · 0 0 $0
Andrew Cubitt VP, Product Protection Sept. 13, 2016 A · 0 0 $0
Kelly Blackburn VP, Clinical Affairs March 28, 2016 A · 0 0 $0
Melissa A. Ashlock SVP, Translational Medicine and Therapeutics Jan. 27, 2016 A · 0 0 $0
John C. Mckew VP, Research Jan. 27, 2016 A · 0 0 $0
Holly D. Chrzanowski VP, Enterprise Talent & Organization Jan. 27, 2016 A · 0 0 $0
Marcy Graham VP, Investor Relations and Corporate Communications Jan. 4, 2016 A · 0 0 $0
Fred Ramsdell VP, Immunology Oct. 1, 2015 A · 0 0 $0
David M. Weiner Chief Medical Officer May 6, 2015 A · 0 0 $0
SCHIMMEL PAUL Director May 27, 2026 P 779,143 3 0 $962,720
Svetlana Lucas Director May 11, 2026 A 6,000 0 0 $0
Jane A Gross Director May 11, 2026 A 9,750 0 0 $0
Eric Benevich Director May 11, 2026 A · 0 0 $0
Sara Zaknoen Director May 11, 2026 A 6,000 0 0 $0
John K Clarke Director May 22, 2024 A 19,797 0 0 $0
Jeffrey S. Hatfield Director May 6, 2020 A · 0 0 $0
John Mendlein Director May 8, 2019 A 615,382 0 0 $0
BLAIR JAMES C Director May 8, 2019 A · 0 0 $0
Amir Nashat Director May 15, 2018 A 17,638 0 0 $0
Kathryn E Falberg Director May 24, 2016 A · 0 0 $0
EcoR1 Capital Fund Qualified, L.P. 10% owner May 16, 2018 S 0 0 0 $0
Timothy Coughlin · May 11, 2026 A 56,000 0 0 $0
Mark Alan Goldberg · May 9, 2017 A · 0 0 $0
Srinivas Akkaraju · May 9, 2017 A 1,866,126 0 0 $0
Grove Matsuoka · Feb. 7, 2017 A 12,412 0 0 $0

Insiders from SEC Form 3/4/5 filings; net = open-market P/S only

ETF ownership Held by 2 ETFs

20

Weight reflects direct equity holdings (N-PORT) only; leveraged or derivative-based funds may hold additional swap exposure not shown.

Fund Weight Units As of Source
VXF · VANGUARD INDEX FUNDS 0.00% 1,054,556 SH Aug. 19, 2026 Daily
VTI · VANGUARD INDEX FUNDS 0.00% 2,650,788 SH Aug. 19, 2026 Daily

ATYR Analyst Consensus Bullish and bearish analyst opinions, 12-month price target, upside

21
rating · 15 analysts BUY
Median target $3.00 +944.6%
3 20.0% Strong Buy
6 40.0% Buy
6 40.0% Hold
0 0.0% Sell
0 0.0% Strong Sell

12-Month Price Target

7 analysts · 2026-10-01

Mean target $2.86 +894.8%

← Below all targets Current price $0.29
Low$1.00 Mean$2.86 High$7.00

Peer comparison (GICS sub-industry) Key metrics vs sector peers

22

FY basis, prices as of each company's last fiscal year-end close.

Ticker Market Cap P/E Rev YoY Net Margin ROE Gross Margin
ATYR $77M -1.0 -19.1% -39009.5% -107.8% ·
ELUT · 0.8 -15.0% 434.2% -753.4% 53.7%
QNCX $187M -2.0 · · 700.5% ·
SHPH $4M -0.3 0.00% · -400.1% ·
RNAZ · -0.1 · · · ·
KYNB $36M 0.2 -78.3% 2848.6% -143.5% ·

My Metrics Your personal watchlist — selected rows from Full Fundamentals

26

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Source: SEC 10-Q filed Aug 7, 2026