ATYR on Nasdaq

aTyr Pharma

Logo: aTyr Pharma, Public domain, via Wikimedia Commons4

American biotherapeutics company

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.3 From Wikipedia, CC BY-SA 4.0

Price unavailable

Last updated Oct 16, 2026.

Overview

Jan 1, 2005Founded1

Compare with Titan Pharmaceuticals, Abpro Holdings, Inc. or WINDTREE THERAPEUTICS INC /DE/, or pick any stock.

  • TickerATYR on Nasdaq1
  • Industrypharmaceutical industry1
  • HeadquartersSan Diego1
  • Websitewww.atyrpharma.com
  • Incorporated inDE5
  • Business address10240 Sorrento Valley Road, Suite 300, San Diego, Ca 921215
  • Filer categoryNon-accelerated filer, Smaller reporting company5

aTyr Pharma is a public biotherapeutics company (Nasdaq: LIFE) that is focused on researching the extracellular functionality and signaling pathways of tRNA synthetases.3

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

-40856.3%Operating margin7
-39009.5%Net margin7
-19.1%Revenue growth, 20257
-109.8%Return on equity7
-$62.1MFree cash flow7

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Research and development100¢$60.2M

Out of $190.0K in revenue.7 The company lost money this year.

Financial statements

Revenue8910117$190.0K in 2025−55% since 2019
0$5.0M$10.0M$15.0M2019: $422.0K$422.0K20192020: $10.5M$10.5M2020+2377%2021: $0$020212022: $10.4M$10.4M20222023: $353.0K$353.0K2023−97%2024: $235.0K$235.0K2024−33%2025: $190.0K$190.0K2025−19%
Operating income8910117-$77.6M in 2025+238% since 2019
-$80.0M-$60.0M-$40.0M-$20.0M02019: -$23.0M-$23.0M20192020: -$15.9M-$15.9M2020−31%2021: -$34.0M-$34.0M2021+114%2022: -$46.4M-$46.4M2022+36%2023: -$54.9M-$54.9M2023+18%2024: -$67.9M-$67.9M2024+24%2025: -$77.6M-$77.6M2025+14%
Net income910117-$74.1M in 2025+357% since 2019
-$80.0M-$60.0M-$40.0M-$20.0M02019: -$16.2M-$16.2M20192020: -$16.2M-$16.2M2020+0%2021: -$33.8M-$33.8M2021+108%2022: -$45.3M-$45.3M2022+34%2023: -$50.4M-$50.4M2023+11%2024: -$64.0M-$64.0M2024+27%2025: -$74.1M-$74.1M2025+16%

Every line of the income statement in the latest annual report, as filed.7

Period ending2025-12-312024-12-312023-12-31
Total revenues$190.0K$235.0K$353.0K
Research and development$60.2M$54.4M$42.3M
General and administrative$17.6M$13.8M$13.0M
Total operating expenses$77.8M$68.1M$55.3M
Loss from operations-$77.6M-$67.9M-$54.9M
Total other income (expense), net$3.5M$3.9M$4.5M
Consolidated net loss-$74.1M-$64.0M-$50.4M
Net loss (gain) attributable to noncontrolling interest in Pangu BioPharma Limited$5.0K-$1.0K$8.0K
Net loss attributable to aTyr Pharma, Inc.-$74.1M-$64.0M-$50.4M
Net loss per share - basic-$0.80-$0.86-$0.94
Net loss per share - diluted-$0.80-$0.86-$0.94
Shares used in computing net loss per share, basic93.0M shares74.3M shares53.6M shares
Shares used in computing net loss per share, diluted93.0M shares74.3M shares53.6M shares

Compare aTyr Pharma with another company

The story

Founded by Paul Schimmel on Jan 1, 2005.1

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.

From Wikipedia’s article on ATyr Pharma, shared under CC BY-SA 4.0.6

Leadership

Who has led aTyr Pharma, and when. Pick a name to see everywhere that person has worked.

Timeline

  1. Jan 1, 2005Founded Founded1

Recent filings

  1. Oct 7, 2026SCHEDULE 13G/A
  2. Oct 1, 20263
  3. Oct 1, 20264
  4. Sep 24, 20268-K
  5. Sep 11, 2026DEF 14A
  6. Aug 31, 2026PRE 14A
  7. Aug 7, 20268-K
  8. Aug 7, 202610-Q
  9. Aug 7, 2026S-8
  10. Aug 6, 2026SCHEDULE 13G/A
  11. Jul 31, 20268-K
  12. Jul 27, 2026SCHEDULE 13G/A
  13. Jul 8, 2026SCHEDULE 13G/A
  14. Jun 8, 20268-K
  15. Jun 5, 2026SCHEDULE 13G/A

Every filing from the last three years, summarized. The full record is on SEC EDGAR.2