Atyr Pharma (ATYR) closed at $0.17 on October 21, 2026, down 0.4% from the previous close, on volume of 1,161,890 shares (30-day average 6,180,308).
Data as of October 21, 2026.
21-Oct-2026
aTyr Pharma Announces Research Collaboration with Montefiore Einstein
Globe Newswire (Mon, 19-Oct 7:00 AM ET)
Globe Newswire (Tue, 13-Oct 8:00 AM ET)
aTyr Pharma Announces Alignment with FDA on Phase 3 Study of Efzofitimod in Pulmonary Sarcoidosis
Globe Newswire (Thu, 24-Sep 6:00 AM ET)
Globe Newswire (Tue, 1-Sep 4:36 PM ET)
Globe Newswire (Fri, 7-Aug 4:01 PM ET)
Market Chameleon (Fri, 10-Oct 7:08 AM ET)
aTyr Pharma Inc is a clinical-stage biotechnology company focused on developing therapies for fibrosis and inflammatory conditions. Its research leverages tRNA synthetase biology to identify potential therapeutic targets. The company's discovery platform uses a proprietary library of domains derived from tRNA synthetases to explore signaling pathways. Its flagship clinical candidate, efzofitimod, is a novel biologic immunomodulatory in development for the treatment of interstitial lung disease (ILD).
Atyr Pharma trades on the NASDAQ stock market under the symbol ATYR.
As of October 21, 2026, ATYR stock price was flat at $0.17 with 1,161,890 million shares trading.
ATYR has a beta of 2.63, meaning it tends to be more sensitive to market movements. ATYR has a correlation of 0.11 to the broad based SPY ETF.
ATYR has a market cap of $16.90 million. This is considered a Sub-Micro Cap stock.
The top ETF exchange traded funds that ATYR belongs to (by Net Assets): VTI, VXF.
ATYR has underperformed the market in the last year with a price return of -83.1% while the SPY ETF gained +16.3%. ATYR has also underperformed the stock market ETF in the last 3 month and 2 week periods returning -64.6% and -39.2%, respectively, while the SPY returned +4.4% and -0.8%, respectively.
ATYR support price is $.16 and resistance is $.19 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that ATYR shares will trade within this expected range on the day.