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Side-by-side financial comparison of Atara Biotherapeutics, Inc. (ATRA) and Serve Robotics Inc. (SERV). Click either name above to swap in a different company.

Atara Biotherapeutics, Inc. is the larger business by last-quarter revenue ($1.6M vs $881.5K, roughly 1.8× Serve Robotics Inc.). On growth, Serve Robotics Inc. posted the faster year-over-year revenue change (400.1% vs -95.1%). Over the past eight quarters, Serve Robotics Inc.'s revenue compounded faster (-3.5% CAGR vs -75.9%).

Atara Biotherapeutics, Inc. is a clinical-stage biotechnology company focused on developing allogeneic T-cell immunotherapies for patients with unmet medical needs across oncology, autoimmune disease, and infectious disease indications. It operates primarily in North America, Europe, and Asia-Pacific, partnering with research institutions to advance its novel treatment pipeline.

Ecovacs Robotics is a Chinese technology company. It is best known for developing in-home robotic appliances. The company was founded in 1998 by Qian Dongqi and is headquartered in Suzhou, China. According to Global Asia, Ecovacs Robotics had more than 60% of the Chinese market for robots by 2013. In 2023, Nikkei Asia had reported that the market capitalisation of Ecovacs Robotics has grown to near $6.38 billion, which is "roughly 5 times" that of the market capitalisation of rivalling US bas...

ATRA vs SERV — Head-to-Head

Bigger by revenue
ATRA
ATRA
1.8× larger
ATRA
$1.6M
$881.5K
SERV
Growing faster (revenue YoY)
SERV
SERV
+495.2% gap
SERV
400.1%
-95.1%
ATRA
Faster 2-yr revenue CAGR
SERV
SERV
Annualised
SERV
-3.5%
-75.9%
ATRA

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ATRA
ATRA
SERV
SERV
Revenue
$1.6M
$881.5K
Net Profit
$-34.3M
Gross Margin
-757.3%
Operating Margin
-4572.1%
Net Margin
-3888.1%
Revenue YoY
-95.1%
400.1%
Net Profit YoY
73.2%
-161.3%
EPS (diluted)
$-0.50

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
ATRA
ATRA
SERV
SERV
Q4 25
$1.6M
$881.5K
Q3 25
$3.5M
$687.0K
Q2 25
$17.6M
$642.0K
Q1 25
$98.1M
$440.5K
Q4 24
$32.8M
$176.3K
Q3 24
$40.2M
$222.0K
Q2 24
$28.6M
$468.0K
Q1 24
$27.4M
$946.7K
Net Profit
ATRA
ATRA
SERV
SERV
Q4 25
$-34.3M
Q3 25
$-4.3M
$-33.0M
Q2 25
$2.4M
$-20.9M
Q1 25
$38.0M
$-13.2M
Q4 24
$-12.7M
$-13.1M
Q3 24
$-21.9M
$-8.0M
Q2 24
$-19.0M
$-9.0M
Q1 24
$-31.8M
$-9.0M
Gross Margin
ATRA
ATRA
SERV
SERV
Q4 25
-757.3%
Q3 25
-637.4%
Q2 25
-445.3%
Q1 25
-333.4%
Q4 24
-371.7%
Q3 24
-70.3%
Q2 24
30.3%
Q1 24
62.8%
Operating Margin
ATRA
ATRA
SERV
SERV
Q4 25
-4572.1%
Q3 25
-103.5%
-5067.8%
Q2 25
18.2%
-3527.1%
Q1 25
39.5%
-3406.6%
Q4 24
-37.3%
-7701.3%
Q3 24
-54.1%
-3804.1%
Q2 24
-63.7%
-1828.2%
Q1 24
-114.2%
-814.6%
Net Margin
ATRA
ATRA
SERV
SERV
Q4 25
-3888.1%
Q3 25
-124.6%
-4806.4%
Q2 25
13.6%
-3247.7%
Q1 25
38.7%
-3000.5%
Q4 24
-38.8%
-7441.8%
Q3 24
-54.5%
-3601.8%
Q2 24
-66.5%
-1931.2%
Q1 24
-116.1%
-954.7%
EPS (diluted)
ATRA
ATRA
SERV
SERV
Q4 25
$-0.50
Q3 25
$-0.32
$-0.54
Q2 25
$0.19
$-0.36
Q1 25
$3.50
$-0.23
Q4 24
$0.27
$-0.23
Q3 24
$-2.93
$-0.20
Q2 24
$-3.10
$-0.27
Q1 24
$-5.65
$-0.37

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
ATRA
ATRA
SERV
SERV
Cash + ST InvestmentsLiquidity on hand
$8.5M
$106.2M
Total DebtLower is stronger
Stockholders' EquityBook value
$-38.5M
$350.7M
Total Assets
$20.2M
$367.8M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ATRA
ATRA
SERV
SERV
Q4 25
$8.5M
$106.2M
Q3 25
$13.7M
$116.8M
Q2 25
$22.3M
$116.7M
Q1 25
$13.8M
$197.8M
Q4 24
$42.5M
$123.3M
Q3 24
$67.2M
$50.9M
Q2 24
$35.3M
$28.8M
Q1 24
$46.2M
Stockholders' Equity
ATRA
ATRA
SERV
SERV
Q4 25
$-38.5M
$350.7M
Q3 25
$-36.6M
$283.9M
Q2 25
$-35.0M
$207.2M
Q1 25
$-55.1M
$210.2M
Q4 24
$-97.3M
$131.7M
Q3 24
$-90.5M
$56.2M
Q2 24
$-110.9M
$28.5M
Q1 24
$-98.3M
$-8.8M
Total Assets
ATRA
ATRA
SERV
SERV
Q4 25
$20.2M
$367.8M
Q3 25
$30.2M
$299.1M
Q2 25
$36.9M
$214.3M
Q1 25
$62.0M
$216.6M
Q4 24
$109.1M
$139.6M
Q3 24
$142.7M
$61.5M
Q2 24
$117.3M
$32.8M
Q1 24
$165.3M
$4.2M

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
ATRA
ATRA
SERV
SERV
Operating Cash FlowLast quarter
$-50.9M
$-29.6M
Free Cash FlowOCF − Capex
$-46.1M
FCF MarginFCF / Revenue
-5234.4%
Capex IntensityCapex / Revenue
0.0%
1872.1%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-117.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ATRA
ATRA
SERV
SERV
Q4 25
$-50.9M
$-29.6M
Q3 25
$-9.8M
$-25.2M
Q2 25
$-7.3M
$-16.0M
Q1 25
$-28.1M
$-9.5M
Q4 24
$-24.5M
$-6.3M
Q3 24
$-4.0M
$-5.5M
Q2 24
$-10.6M
$-5.7M
Q1 24
$-29.6M
$-4.1M
Free Cash Flow
ATRA
ATRA
SERV
SERV
Q4 25
$-46.1M
Q3 25
$-36.5M
Q2 25
$-22.0M
Q1 25
$-12.9M
Q4 24
$-24.6M
$-11.1M
Q3 24
$-10.1M
Q2 24
$-10.7M
$-6.5M
Q1 24
$-29.7M
$-4.1M
FCF Margin
ATRA
ATRA
SERV
SERV
Q4 25
-5234.4%
Q3 25
-5314.1%
Q2 25
-3426.8%
Q1 25
-2934.1%
Q4 24
-75.0%
-6307.8%
Q3 24
-4529.7%
Q2 24
-37.3%
-1396.6%
Q1 24
-108.7%
-431.1%
Capex Intensity
ATRA
ATRA
SERV
SERV
Q4 25
0.0%
1872.1%
Q3 25
0.0%
1649.6%
Q2 25
0.0%
940.4%
Q1 25
0.0%
785.7%
Q4 24
0.3%
2755.1%
Q3 24
0.0%
2070.7%
Q2 24
0.1%
169.8%
Q1 24
0.5%
0.4%
Cash Conversion
ATRA
ATRA
SERV
SERV
Q4 25
Q3 25
Q2 25
-3.07×
Q1 25
-0.74×
Q4 24
Q3 24
Q2 24
Q1 24

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

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