Stocks · Healthcare · Biotechnology
Atara Biotherapeutics, Inc. ATRA
$9.48 +12.06% Close, Oct 2, 2026 · NASDAQ · Market cap $85.4M
Next earnings report: Nov 11, 2026
Scroll or pinch to zoom, drag to move. Daily prices adjusted for splits. Markers: E = earnings (green beat, red miss), S = split, D = dividend.
Three things to know
- Revenue over the last four quarters was $6.2M, down 96.7% from a year earlier, slowing from -88.4% a quarter earlier.
- Operating margin narrowed to -229.7% from 4.3% a year earlier.
- The diluted share count rose 22.1% in a year.
PromtFinance scores
Each score is a percentile within the Healthcare sector (0–100). Under each score: how the stock ranks in its sector on every component. As of Oct 5, 2026.
How fast revenue, earnings and cash flow are growing.
- Revenue growth (TTM, YoY)Bottom 4%
- Revenue growth, 3-year CAGRTop 27%
- Revenue growth accelerationBottom 20%
Returns on capital, margins, earnings quality and balance-sheet strength.
- Return on invested capitalBottom 11%
- Gross marginTop 17%
- Operating marginBottom 23%
- Accruals (lower is better)Bottom 4%
- Interest coverBottom 41%
How cheap the shares are relative to earnings, cash flow and their own history.
- Earnings yieldBottom 42%
- Free-cash-flow yieldBottom 20%
- EBITDA / enterprise valueBottom 32%
- Sales / enterprise valueBottom 25%
Strength and persistence of the price trend, including versus the S&P 500.
- 12-month return excluding last monthBottom 13%
- 6-month returnTop 10%
- 1-year return vs S&P 500Bottom 19%
- Distance from 52-week highBottom 27%
- Trend checklist (0–4)Top 7%
Earnings surprises and analyst sentiment (estimate-revision history is being collected).
- Average EPS surprise, last 4 quartersBottom 19%
- Consecutive EPS beatsBottom 20%
- Share of analysts rating BuyBottom 4%
- Upside to consensus price targetBottom 38%
Low volatility, shallow drawdowns, low market sensitivity and modest leverage.
- Volatility, 60 days (lower is better)Bottom 29%
- Maximum drawdown, 3 yearsBottom 15%
- Beta vs S&P 500 (lower is better)Top 42%
What changed
Latest four quarters versus the same period a year earlier (growth: versus one quarter earlier).
| Measure | Before | Now | |
|---|---|---|---|
| Revenue growth (YoY) | -88.4% | -96.7% | ↓ |
| Gross margin | 81.2% | 91.4% | ↑ |
| Operating margin | 4.3% | -229.7% | ↓ |
| FCF margin | -33.9% | -353.5% | ↓ |
Fundamental momentum
| Measure | Now (TTM) | Year / quarter before | Sector rank | |
|---|---|---|---|---|
| Revenue growth (TTM, YoY) | -96.7% | -88.4% | ↓ | Bottom 4% |
| Gross margin | 91.4% | 81.2% | ↑ | Top 17% |
| Operating margin | -229.7% | 4.3% | ↓ | Bottom 23% |
| Net margin | -269.4% | 3.1% | ↓ | — |
| Free-cash-flow margin | -353.5% | -33.9% | ↓ | — |
| Return on invested capital | -93.1% | — | Bottom 11% | |
| Revenue growth, 3-year CAGR | 23.9% | — | Top 27% |
Quality of earnings and balance sheet
- Accruals (net income − OCF) / assetsLower is better; high accruals can signal weaker earnings quality.
- 24.8%
- Stock-based compensation / revenueA cost to shareholders through dilution.
- 62.7%
- Interest cover (operating income / interest)How many times operating profit covers interest.
- -5.0×
Shareholder returns
- Dividend yield (dividends paid, TTM)
- 0.00%
- Net buyback yield (TTM)
- -10.33%
- Shareholder yield
- -10.33%
- Share count change, 1 year
- +22.1%
- Share count change, 3-year CAGR
- +52.9%
Shareholder yield = dividends + net buybacks over the last four quarters, divided by market cap.
Based on the four quarters through Jun 30, 2026 (filed Aug 12, 2026).
Earnings and expectations
Earnings momentum
- Consecutive EPS beats
- 0
- Beats in the last 8 reports
- 6 of 8
- Average EPS surprise, last 4
- -26.5%
- Average 2-day reaction, last 8
- -0.7%
- Positive 20 days after report
- 5 of 8
Analysts
- Consensus price target
- $13.00
- Target vs current price
- +37.1%
- Analysts with a rating
- 13
- Share rating Buy or Strong Buy
- 31%
- Consensus rating
- Hold
How the stock reacted to recent reports
| Report date | EPS surprise | 2 days | 5 days | 20 days | 60 days |
|---|---|---|---|---|---|
| Aug 12, 2026 | -1.6% | +3.2% | -2.5% | +10.9% | — |
| May 14, 2026 | +12.0% | -8.5% | -9.8% | -0.2% | -17.8% |
| Mar 16, 2026 | -177.8% | -9.7% | -24.5% | -24.8% | +50.3% |
| Nov 12, 2025 | +61.4% | -0.7% | +7.2% | +34.0% | -60.4% |
| Aug 11, 2025 | +159.4% | -5.8% | +12.1% | +11.1% | +26.4% |
| May 15, 2025 | +214.0% | +15.1% | +4.4% | +31.8% | +56.1% |
| Mar 7, 2025 | +68.8% | +1.5% | +0.9% | -12.9% | +17.6% |
| Nov 12, 2024 | +22.3% | -0.8% | -3.7% | +3.6% | -21.3% |
Returns from the close before each report. Past reactions do not determine future ones.
Earnings history
| Report date | EPS | Estimate | Surprise | Revenue |
|---|---|---|---|---|
| Aug 12, 2026 | -$0.32 | -$0.32 | -1.6% | $630,000 |
| May 14, 2026 | -$0.29 | -$0.33 | +12.0% | $516,000 |
| Mar 16, 2026 | -$0.25 | -$0.09 | -177.8% | $1.6M |
| Nov 12, 2025 | -$0.32 | -$0.83 | +61.4% | $3.5M |
| Aug 11, 2025 | $0.19 | -$0.32 | +159.4% | $17.6M |
| May 15, 2025 | $3.50 | -$3.07 | +214.0% | $98.1M |
| Mar 7, 2025 | -$1.19 | -$3.82 | +68.8% | $32.8M |
| Nov 12, 2024 | -$2.93 | -$3.77 | +22.3% | $40.2M |
Valuation in context
| Multiple | Now | 5-year median | 5-year percentile | Sector rank (cheapness) |
|---|---|---|---|---|
| EV / Sales | 14.87× | — | — | Bottom 25% |
| Free-cash-flow yield | -25.63% | — | — | Bottom 20% |
| Earnings yield | -12.45% | — | — | Bottom 42% |
Technical state
Trend checklist
- ✓ Price above 20-day average
- ✓ Price above 50-day average
- ✓ Price above 200-day average
- ✓ 50-day average above 200-day
- ✗ MACD histogram positive
Trend quality
- Days above the 50-day average
- 1
- Days above the 200-day average
- 3
- 50-day average slope (20 days)
- -1.8%
- 200-day average slope (20 days)
- -6.2%
- Distance from 50-day average
- +5.8%
- Distance from 200-day average
- +14.4%
- RSI (14)
- 54.9
- Relative volume
- 1.69×
Risk and drawdowns
- Volatility, 60 days (annualized)
- 69.2%
- Volatility vs own 5-year history
- 13th percentile · Low for this stock
- Beta vs S&P 500 (2 years, weekly)
- 0.97
- Correlation with S&P 500
- 0.13
- Current drawdown from 1-year high
- -47.6%
- Maximum drawdown, 3 years
- -90.4%
Largest declines in the past six years
| From peak | To low | Decline | Length | Recovery |
|---|---|---|---|---|
| Dec 7, 2020 | Feb 20, 2026 | -99.4% | 1306 days | Not yet recovered |
| Oct 22, 2020 | Nov 2, 2020 | -13.5% | 7 days | 6 days (Nov 10, 2020) |
Declines of 10% or more from a closing high, measured on daily closes.
Financial statements
- Market cap
- $85.4M
- EPS, diluted (TTM)
- -$1.18
- Revenue (TTM)
- $6.2M
- 52-week range
- $3.92 – $19.15
| FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 | |
|---|---|---|---|---|---|
| Revenue | $20.3M | $63.6M | $8.6M | $128.9M | $120.8M |
| Gross profit | -$261.7M | -$206.4M | -$313,000 | $107.9M | $99.6M |
| Operating income | -$340.5M | -$280.5M | -$276.0M | -$83.4M | $35.9M |
| Net income | -$340.1M | -$228.3M | -$276.1M | -$85.4M | $32.7M |
| EPS (diluted) | -$90.78 | -$55.96 | -$65.18 | -$11.41 | $2.57 |
| Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 | |
|---|---|---|---|---|---|---|---|---|
| Revenue | $40.2M | $32.8M | $98.1M | $17.6M | $3.5M | $1.6M | $516,000 | $630,000 |
| Net income | -$21.9M | -$12.7M | $38.0M | $2.4M | -$4.3M | -$3.4M | -$4.1M | -$4.8M |
| EPS (diluted) | -$2.93 | -$1.19 | $3.50 | $0.19 | -$0.32 | -$0.25 | -$0.29 | -$0.32 |
| FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 | |
|---|---|---|---|---|---|
| Operating cash flow | -$220.5M | -$270.4M | -$193.0M | -$68.7M | -$50.9M |
| Capital expenditure | -$10.6M | -$4.2M | -$1.2M | -$246,000 | $0 |
| Free cash flow | -$231.1M | -$274.6M | -$194.2M | -$69.0M | -$50.9M |
| Dividends paid | $0 | $0 | $0 | $0 | $0 |
| Net share buybacks | $98.7M | $21.9M | $2.1M | $60.0M | $16.3M |
Cash outflows are shown as negative numbers.
- Cash and short-term investments
- $9.9M
- Total assets
- $21.0M
- Total liabilities
- $58.0M
- Total debt
- $9.9M
- Net debt
- $6.7M
- Shareholders’ equity
- -$37.0M
As of Jun 30, 2026 (filed Aug 12, 2026).
Short interest
- Shares sold short
- 404,270
- Days to cover
- 7.34
- Change vs previous report
- -5.4%
FINRA short interest, settlement date Sep 15, 2026.
Stock splits
- Jun 20, 2024
- 1-for-25